JP5536624B2 - Cylindrical inspection device - Google Patents

Description

  The present invention relates to a cylindrical body inspection apparatus that rotates a cylindrical body that supports an inner peripheral surface by a plurality of rollers, and a related technique thereof.

  Since a cylindrical body such as a photosensitive drum substrate requires high surface accuracy and high shape accuracy, it detects surface defects such as scratches, irregularities, and adhesion (dirt) of foreign matter as shown in Patent Documents 1 and 2. For surface inspection and shape inspection such as displacement (flare) of the outer peripheral surface during rotation.

  For example, in the cylindrical body inspection apparatus shown in Patent Document 1, a pair of roller groups are inserted inside both side parts of the cylindrical body, and the inner peripheral surfaces of both side parts of the cylindrical body are supported by both roller groups, and the cylindrical body is pivoted. An inspection apparatus main body for performing inspection while rotating around the center, a carry-in conveyor for carrying a cylindrical body to be inspected into the inspection apparatus main body, and a conveyor for carrying out the inspected cylindrical body from the inspection apparatus main body. . When the cylindrical body is carried into the inspection apparatus main body by the carry-in conveyor, the cylindrical body is supported (chucked) by the pair of rollers of the inspection apparatus main body and inspected. After completion of the inspection, the chuck by the pair of rollers of the cylindrical body is released, and the cylindrical body is transferred to the carry-out conveyor and carried out.

JP 2006-10683 A JP-A-9-145624

  By the way, in the cylindrical body inspection apparatus shown in the above-mentioned Patent Document 1, a large number of holding bases for mounting the cylindrical body in a stable state are attached to the carry-in conveyor, and are placed on the holding base. The cylindrical body is chucked by a pair of rollers.

  However, in the conventional cylindrical body inspection apparatus, in order to prevent the cylindrical body from interfering with the cradle after chucking, the cradle is retracted downward when chucking. As described above, the conventional inspection apparatus requires a mechanism for raising and lowering the cradle. Therefore, there is a problem that the structure is complicated, the apparatus is enlarged, and the cost is increased. In particular, since a large number of cradles are provided, it is very difficult to accurately control the lift drive of these cradles, which may cause transport troubles due to the lift drive and cannot be inspected smoothly. There was sex.

  The present invention has been made in view of the above-described problems, and can simplify the structure, reduce the size of the apparatus, and reduce the cost. Further, the cylindrical body comes into contact with a holding table of the carry-in conveyor. It is an object of the present invention to provide a cylindrical body inspection apparatus and related technology capable of preventing the occurrence of a transportation trouble due to the above.

  In order to solve the above problems, the present invention comprises the following means.

[1] A cylindrical body inspection apparatus for inspecting a cylindrical body at an inspection position,
A loading unit for loading the cylindrical body substantially horizontally; a loading means for loading the cylindrical body on the loading tool to the cylindrical body taking-in position;
Chuck means for chucking the cylindrical body disposed at the cylindrical body taking-in position so as to be rotatable around an axis;
A transfer means for transferring the chuck means from the cylindrical body take-in position to the inspection position;
The chuck means includes a main roller and a sub-roller that can move in a direction in contact with and away from the main roller, and includes a pair of insertion support portions provided corresponding to both sides of the cylindrical body,
The chuck means chucks the cylindrical body on the loading-side mounting tool at the cylindrical body taking-in position.
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to come into contact with the upper inner peripheral surface of the cylindrical body to lift the cylindrical body from the loading-side mounting tool by the sub roller, and the main roller is moved below the inner peripheral surface of the cylindrical body. An inspection apparatus for a cylindrical body characterized in that it is brought into contact with the side.

[2] The pair of insertion support portions can be shifted between the upward posture of the sub-roller and the upward posture of the main roller in which the main roller is disposed above the sub-roller.
The paired insertion support portions that chuck the cylindrical body shift to the main roller upward posture, and at the inspection position, the portion corresponding to the main roller of the cylindrical body is inspected as an inspection target region. The cylindrical body inspection apparatus described in 1.

[3] The transfer means includes a rotating frame that is rotatable about an axis in the same direction as the axis of the cylindrical body,
The chuck means is attached to the rotating frame, and the chuck means is configured to be movable along an annular transfer path by the rotation of the rotating frame.
When the chuck means is disposed on the lower side of the annular transfer path, the pair of insertion support portions are in the upward posture of the sub-roller, and are disposed in the upward posture of the main roller when disposed on the upper side. Configured,
The cylindrical body take-in position is provided on the lower side on the annular transfer path, and the inspection position is provided on the upper side,
3. The cylindrical body inspection apparatus according to claim 2, wherein the chuck means that chucks the cylindrical body at the cylindrical body take-in position moves along the annular transfer path and is transferred to the inspection position.

[4] The inspection position is provided at an upper end of the annular transfer path,
The cylindrical body take-in position is provided within a range of ¼ circumference from the lower end of the annular transfer path toward the downstream side in the transfer direction,
A cylindrical body delivery position is provided within a range of 1/4 turn from the lower end of the annular transfer path toward the upstream side in the transfer direction,
An unloading means for unloading the cylindrical body placed on the unloading-side placement tool at the cylindrical body delivery position is provided, the unloading-side placement tool for placing the cylindrical body substantially horizontally;
The chuck means that chucks the cylindrical body is configured to be transferred from the inspection position to the cylindrical body delivery position along the annular transfer path, and
When the sub roller of the pair of insertion support portions in the chuck means moves downward so as to be close to the main roller at the cylindrical body delivery position, the chuck is released and the lower side of the sub roller is moved downward. The cylindrical body inspection apparatus according to 3 above, wherein the cylindrical body is lowered and transferred to the carry-out side mounting tool as the movement of the cylindrical body is performed.

[5] A plurality of the chuck means are attached to the rotating frame at equal intervals in the circumferential direction.
5. The cylindrical body inspection apparatus according to claim 4, wherein the chuck means can be present at the cylindrical body take-in position, the inspection position, and the cylindrical body delivery position at the same time.

[6]
The carrying-in means is constituted by a carry-in conveyor provided with a large number of the loading-side placement tools arranged along the conveying direction,
The carry-out means is constituted by a carry-out conveyor provided with a large number of the loading-side placement tools arranged along the conveyance direction,
The cylindrical body on the loading-side mounting tool is sequentially loaded into the cylindrical body taking-in position by the loading conveyor, and the cylindrical body on the loading-side loading tool is moved to the cylindrical body sending position by the unloading conveyor. 6. The cylindrical body inspection apparatus according to 5 above, wherein the cylindrical body inspection apparatus is sequentially carried out from the above.

  [7] The cylindrical body inspection apparatus according to [6], wherein the carry-in placement tool and the carry-out placement tool are set at the same height position.

[8] The carry-in conveyor and the carry-out conveyor are configured by a single conveyor.
8. The cylindrical body inspection apparatus according to item 7, wherein the carry-in side placement tool and the carry-out side placement tool have the same configuration.

[9] Five chuck means are attached to the rotating frame at equal intervals in the circumferential direction,
A pre-inspection standby position is provided between the cylindrical body take-in position and the inspection position on the annular transfer path, and a pre-delivery standby position is provided between the inspection position and the cylindrical body delivery position. ,
The chuck means can be arranged simultaneously at each of the cylindrical body take-in position, the pre-inspection standby position, the inspection position, the pre-delivery standby position, and the cylindrical body delivery position,
In the state where the chuck means is arranged at each position, the chuck means at each position is transferred to the next position by rotating the rotary frame by 1/5. 9. The cylindrical body inspection apparatus according to any one of 8 above.

[10] Three chuck means are attached to the rotating frame at equal intervals in the circumferential direction,
The chuck means can be arranged at the same time at each position of the cylindrical body take-in position, the inspection position and the cylindrical body delivery position,
In the state in which the chuck means is arranged at each position, the chuck means at each position is transferred to the next position by rotating the rotary frame by 1/3. 9. The cylindrical body inspection apparatus according to any one of 8 above.

  [11] Any one of [1] to [10], wherein rotation of the cylindrical body chucked by the chuck means is started before the cylindrical body is transferred from the cylindrical body take-in position to the inspection position. Cylindrical body inspection device.

  [12] The inspection of the cylindrical body according to any one of the preceding items 1 to 11, wherein air is blown to an outer peripheral surface of the cylindrical body before the cylindrical body is transferred from the cylindrical body taking-in position to the inspection position. apparatus.

[13] The pair of insertion support portions each include two sub rollers.
The cylindrical body inspection apparatus according to any one of the preceding items 1 to 12, wherein inner peripheral surfaces of both ends of the cylindrical body are respectively supported at three points by one main roller and two sub rollers.

  [14] The preceding item, wherein the two sub-rollers provided in each insertion support part are configured to be movable in a direction in which the two sub-rollers move toward and away from the main roller by moving along a substantially radial direction of the cylindrical body to be chucked. The cylindrical body inspection apparatus according to 13.

[15] A cylindrical body transfer device configured to transfer a cylindrical body arranged substantially horizontally on the mounting tool to the transfer position at the cylindrical body taking-in position,
Chuck means for chucking the cylindrical body disposed at the cylindrical body taking-in position so as to be rotatable around an axis;
A transfer means for transferring the chuck means from the cylindrical body take-in position to the inspection position;
The chuck means includes a main roller and a sub-roller that can move in a direction in contact with and away from the main roller, and includes a pair of insertion support portions provided corresponding to both sides of the cylindrical body,
When the chuck means chucks the cylindrical body on the fixture described above at the cylindrical body taking-in position,
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to contact the upper side of the inner peripheral surface of the cylindrical body, and the cylindrical body is lifted from the mounting tool by the sub roller, and the main roller is moved to the lower side of the inner peripheral surface of the cylindrical body. A cylindrical body transfer device characterized by being brought into contact with each other.

[16] A cylindrical chuck device that chucks a cylindrical body disposed substantially horizontally on a mounting tool at a cylindrical body taking-in position so as to be rotatable about an axis.
Each having a main roller and a sub-roller movable in a direction contacting and separating from the main roller, and including a pair of insertion support portions provided corresponding to both side portions of the cylindrical body,
When chucking the cylindrical body on the mounting device at the cylindrical body taking-in position,
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to contact the upper side of the inner peripheral surface of the cylindrical body, and the cylindrical body is lifted from the mounting tool by the sub roller, and the main roller is moved to the lower side of the inner peripheral surface of the cylindrical body. A cylindrical chuck device characterized by being brought into contact with each other.

[17] A cylindrical body inspection method for inspecting a cylindrical body at an inspection position,
A loading unit for loading the cylindrical body substantially horizontally; a loading means for loading the cylindrical body on the loading tool to the cylindrical body taking-in position;
Chuck means for chucking the cylindrical body disposed at the cylindrical body taking-in position so as to be rotatable around an axis;
A transfer means for transferring the chuck means from the cylindrical body take-in position to the inspection position, respectively,
The chuck means includes a main roller and a sub-roller that can move in the direction of contact with and away from the main roller, and a pair of insertion support portions provided corresponding to both side portions of the cylindrical body. Be prepared,
When chucking the cylindrical body on the loading-side mounting tool at the cylindrical body taking-in position by the chuck means,
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to come into contact with the upper inner peripheral surface of the cylindrical body to lift the cylindrical body from the loading-side mounting tool by the sub roller, and the main roller is moved below the inner peripheral surface of the cylindrical body. An inspection method for a cylindrical body, characterized in that the cylindrical body is brought into contact with the side.

[18] A method for transferring a cylindrical body in which a cylindrical body disposed substantially horizontally on a mounting tool at a cylindrical body taking-in position is transferred to a transfer position,
Chuck means for chucking the cylindrical body disposed at the cylindrical body taking-in position so as to be rotatable around an axis;
A transfer means for transferring the chuck means from the cylindrical body take-in position to the inspection position, respectively,
The chuck means includes a main roller and a sub-roller that can move in a direction in contact with and away from the main roller, and includes a pair of insertion support portions provided corresponding to both side portions of the cylindrical body. Be prepared,
When chucking the cylindrical body on the mounting device by the chuck means at the cylindrical body taking-in position,
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to contact the upper side of the inner peripheral surface of the cylindrical body, and the cylindrical body is lifted from the mounting tool by the sub roller, and the main roller is moved to the lower side of the inner peripheral surface of the cylindrical body. A method for transferring a cylindrical body, wherein the cylindrical body is brought into contact.

[19] A cylinder chucking method for chucking a cylindrical body disposed substantially horizontally on a mounting tool at a cylindrical body taking-in position so as to be rotatable about an axis,
A pair of insertion support portions each having a main roller and a sub-roller movable in a direction contacting and separating from the main roller and provided corresponding to both side portions of the cylindrical body;
When chucking the cylindrical body on the mounting device at the cylindrical body taking-in position,
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to contact the upper side of the inner peripheral surface of the cylindrical body, and the cylindrical body is lifted from the mounting tool by the sub roller, and the main roller is moved to the lower side of the inner peripheral surface of the cylindrical body. A method for chucking a cylindrical body, wherein the cylindrical body is brought into contact.

  In the present invention, the positional relationship between the main roller and the sub-roller is described based on the axis of each roller. For example, when the sub roller is above or below the main roller, the axis of the sub roller is above or below the axis of the main roller, and when the sub roller is close to or away from the main roller, the sub roller This is a case where the shaft center of the main shaft approaches or separates from the shaft center of the main roller.

  Further, in the present invention, the term “upward posture of the sub-roller” includes a case where the axial center position of the sub-roller is disposed obliquely above the axial center position of the main roller. Further, when a plurality of sub rollers are provided, if the axis of the sub roller at the lowest position is arranged above the axis of the main roller, the sub roller is in an upward posture, and the axis of the sub roller at the lowest position is positioned. If the axis of the main roller is arranged on the upper side, the main roller is in an upward posture.

  According to the cylindrical body inspection apparatus of the invention [1], the cylindrical body is inserted into the cylindrical body in the upward orientation of the sub-roller, and the sub-roller is lifted to chuck the cylindrical body. And is separated from a mounting tool such as a cradle. Therefore, it is possible to prevent the cylindrical body from interfering with the mounting tool after chucking, and it is possible to reliably prevent a transfer trouble due to the interference. Furthermore, in order to avoid interference with the cylindrical body, it is not necessary to retract the mounting tool, and the number of parts can be reduced as much as the retracting mechanism can be omitted, simplifying the structure, downsizing the device, and reducing the cost. Reduction can be achieved.

  According to the cylindrical body inspection apparatus of the invention [2], since the portion corresponding to the main roller that does not move at the time of chucking is set as the inspection target region, the main roller is used as a reference for determining the height position during the cylindrical body inspection. The cylindrical body can be inspected stably with high accuracy.

  According to the cylindrical body inspection apparatus of the invention [3], the cylindrical body chucked at the cylindrical body take-in position can be smoothly transferred to the inspection position.

  According to the cylindrical body inspection apparatus of the invention [4], the sub roller is lowered in the upward posture of the sub roller at the cylindrical body delivery position to release the chuck of the cylindrical body. The body descends and is transferred to the mounting tool. Therefore, at the cylindrical body delivery position, before releasing the chuck, the cylindrical body can be arranged at a position spaced upward from the mounting tool, and the cylindrical body can be prevented from interfering with the mounting tool. Occurrence of transport troubles can be reliably prevented. Further, since the cylindrical body descends, it is not necessary to raise the mounting tool, and since the raising mechanism can be omitted, the number of parts can be further reduced, the structure is simplified, the apparatus is miniaturized and the cost is reduced. Can be reduced more reliably.

  According to the cylindrical body inspection apparatus of the inventions [5] and [6], the cylindrical body can be efficiently conveyed, and the inspection efficiency can be improved.

  According to the cylindrical inspection apparatus of the invention [7], the cylindrical body can be smoothly carried in and out, and the inspection efficiency can be further improved.

  According to the cylindrical inspection apparatus of the invention [8], parts can be further shared, and the structure can be simplified, the apparatus can be reduced in size, and the cost can be further reduced.

  According to the cylindrical body inspection apparatus of the invention [9] and [10], the chuck processing at the cylindrical body take-in position, the cylindrical body inspection processing at the inspection position, and the chuck release processing at the cylindrical body delivery position are performed in parallel. The inspection efficiency can be further improved.

  According to the cylindrical body inspection apparatus of the invention [11], since the rotation of the cylindrical body can be stabilized when the cylindrical body is transferred to the inspection position, the inspection is immediately performed without performing preliminary operation at the inspection position. Can start. Accordingly, the inspection efficiency can be improved more reliably.

  According to the cylindrical body inspection apparatus of the invention [12], since the surface of the cylindrical body can be cleaned before the cylindrical body is inspected, the inspection accuracy can be improved.

  According to the cylindrical body inspection apparatus of the invention [13], the inner peripheral surfaces of both ends of the cylindrical body can be supported at three points by the three rollers, so that the cylindrical body can be supported in a stable state. For this reason, it can test | inspect while rotating a cylindrical body smoothly, and can improve a test | inspection precision further.

  According to the cylindrical body inspection apparatus of the invention [14], the three rollers can be brought into contact with the inner peripheral surfaces of both ends of the cylindrical body at substantially equal intervals along the circumferential direction regardless of the diameter size of the cylindrical body. it can. Therefore, the cylindrical body can be supported in a more stable state, and the inspection accuracy can be further improved.

  According to the invention [15], similarly to the above, it is possible to provide a cylindrical transfer device that exhibits the same effect.

  According to the invention [16], similarly to the above, it is possible to provide a cylindrical chuck device having the same effect.

  According to the invention [17], it is possible to provide a cylindrical body inspection method having the same effect as described above.

  According to the invention [18], similarly to the above, it is possible to provide a method of transferring a cylindrical body having the same effect.

  According to the invention [19], similarly to the above, it is possible to provide a cylindrical chuck method that exhibits the same effect.

FIG. 1 is a perspective view showing a cylindrical body as an inspection object of a cylindrical surface inspection apparatus according to an embodiment of the present invention. FIG. 2 is a side view showing the cylindrical surface inspection apparatus according to the first embodiment. FIG. 3 is a side view schematically showing a rotation transfer mechanism in the cylindrical surface inspection apparatus according to the first embodiment. FIG. 4 is a schematic diagram showing the vicinity of the cylindrical body take-in / feed-out position in the cylindrical surface inspection apparatus of the first embodiment in a state before the cylindrical body is carried in. FIG. 5 is a schematic diagram showing the vicinity of the cylindrical body take-in / feed-out position in the cylindrical surface inspection apparatus according to the first embodiment in a state immediately before the chuck. FIG. 4A is a front view, and FIG. 4B is an inner side view. FIG. 6 is a schematic diagram showing the vicinity of the cylindrical body take-in / feed-out position in the cylindrical surface inspection apparatus according to the first embodiment after chucking. FIG. 4A is a front view, and FIG. 4B is an inner side view. FIG. 7 is a diagram schematically showing the periphery of the inspection position in the cylindrical surface inspection apparatus according to the first embodiment. FIG. 4A is a front view, and FIG. 4B is an inner side view. FIG. 8 is a side view showing the chuck device arranged at the inspection position in the inspection device of the first embodiment. FIG. 9 is a perspective view showing the chuck device arranged at the inspection position in the inspection device of the first embodiment. FIG. 10 is a side view showing a cylindrical surface inspection apparatus according to the second embodiment of the present invention. FIG. 11 is a side view schematically showing a rotary transfer mechanism in the cylindrical surface inspection apparatus of the second embodiment. FIG. 12 is an inner side view schematically showing the vicinity of the take-in position in the cylindrical surface inspection apparatus according to the second embodiment. FIG. 13 is an inner side view schematically showing the periphery of the delivery position in the cylindrical surface inspection apparatus of the second embodiment. FIG. 14 is a side view showing a cylindrical surface inspection apparatus according to a third embodiment of the present invention. FIG. 15 is a side view schematically showing a rotary transfer mechanism in the cylindrical surface inspection apparatus of the second embodiment. FIG. 16 is a side view showing a cylindrical surface inspection apparatus according to a fourth embodiment of the present invention. FIG. 17 is a side view schematically showing a rotary transfer mechanism in the cylindrical surface inspection apparatus of the fourth embodiment. FIG. 18 is an inner side view showing a first transport conveyor applicable to the inspection apparatus of the present invention. FIG. 19 is a front cross-sectional side view showing a second conveyor applicable to the inspection apparatus of the present invention. FIG. 20 is an inner side view showing the second transport conveyor. FIG. 21 is an inner side view showing an insertion support portion as a first modified example of the present invention in a state in which the reference roller faces upward. FIG. 22 is an inner side view showing an insertion support portion as a second modification of the present invention in a state in which the reference roller faces upward.

<Cylindrical body (work)>
FIG. 1 is a perspective view showing a cylindrical body (work) W as an inspection object of a cylindrical surface inspection apparatus according to an embodiment of the present invention.

  As shown in the figure, a cylindrical body W as an object to be inspected (work) is, for example, a photoconductive drum, a transfer roller, and other parts in a copying machine, a printer, a facsimile, and a multi-function machine constituting an electrophotographic system. It is what is used.

  Among the cylindrical bodies W that can constitute such members, in the present embodiment, the cylindrical body W used as an element tube or a substrate for a photosensitive drum in a copying machine or a printer that employs an electrophotographic system is a preferred example. Can be mentioned. The outer peripheral surface of the cylindrical body W as the photosensitive drum substrate has a metallic luster and is a mirror surface that reflects most of the incident light.

  The cylindrical body W as the photosensitive drum substrate has, for example, a diameter of about 10 to 60 mm and a length of about 200 to 500 mm.

  As a manufacturing method of such a cylindrical body W, the combination of an extrusion process and a drawing process can be mentioned. Needless to say, in the present invention, the manufacturing method of the cylindrical body W is not limited to this, and a tubular body such as extrusion, drawing, casting, forging, injection molding, cutting, or a combination thereof can be manufactured. Any method can be adopted as long as it is a method.

  In addition, the material of the cylindrical body W as an inspection object is not particularly limited, and various kinds of metal materials, synthetic resins, and the like can be applied. For example, aluminum and aluminum alloys (1000 to 7000 series), copper And copper alloys, steel materials, magnesium and magnesium alloys. In particular, the cylindrical body W made of an aluminum alloy is suitable as an inspection object of the present invention.

  In the present embodiment, the substrate for the photosensitive drum refers to a tube body that has been subjected to cutting processing, drawing processing, or the like and has not yet been formed with a photosensitive layer. However, in the present invention, the tube after the photosensitive layer is formed on the photosensitive drum substrate can also be configured as the cylindrical body W to be inspected.

  The surface inspection apparatus according to the present embodiment inspects the cylindrical body (tubular body) W while rotating around the axis as described in detail below.

  In the present invention, the type of inspection such as what kind of inspection is performed on the cylindrical body W is not particularly limited, but in this embodiment, the surface (outer peripheral surface) state of the cylindrical body W is inspected. The case of doing this will be described as an example.

<First Embodiment>
FIG. 2 is a side view showing a cylindrical surface inspection apparatus according to the first embodiment of the present invention, and FIG. 3 is a side view schematically showing a rotary transfer mechanism 2 of the apparatus.

  In the surface inspection apparatus according to the present embodiment, the cylindrical bodies W as inspection targets are all arranged in a lateral state in which the axis is directed horizontally. In this specification, the direction parallel to the axial direction of the cylindrical body W in the apparatus is defined as the X-axis direction, and the horizontal direction perpendicular to the X-axis direction is described as the Y-axis direction.

<Inspection device>
As shown in FIGS. 2 and 3, the surface inspection apparatus according to the first embodiment includes an inspection apparatus main body 1 and a conveyor 6 that carries the cylindrical body W into and out of the inspection apparatus main body 1.

  The inspection apparatus main body 1 is configured so that the cylindrical body W is conveyed clockwise (clockwise) along the annular transfer path P in the side view state of FIGS. At the lower end of the annular transfer path P, a cylindrical body take-in / out position A for delivering the cylindrical body W to the conveyor 6 is provided, and at the upper end, an inspection position B for inspecting the cylindrical body W is provided. Provided. Further, in the side view of FIGS. 2 and 3, a pre-inspection standby position C1 is provided at a position that makes a ¼ turn clockwise from the take-in / send position A on the annular transfer path P, and from the detection position B. A pre-delivery standby position C2 is provided at a position that makes a 1/4 turn clockwise.

  In the present embodiment, the clockwise direction in FIGS. 2 and 3 is the downstream side in the transfer direction (conveyance direction), and the counterclockwise direction is the upstream side in the transfer direction (see FIGS. 10, 11, 14 to below). The same applies to each of the 17 embodiments).

  The conveyor 6 is disposed below the annular transfer path P, and is continuously disposed from the left side (upstream side) to the right side (downstream side) along the Y-axis direction in FIG.

  4 to 6 are schematic views showing the periphery of the cylindrical body take-in / delivery position in the surface inspection apparatus according to the first embodiment. 5 and 6, (a) is a front view and (b) is an inner side view.

  As shown in FIGS. 1-6, the conveyance conveyor 6 is provided with many temporary storage stand 7 ... as a mounting tool along with the conveyor conveyance direction (Y-axis direction). Each holding base 7 has a pair of V receiving plates 75 whose upper end edges are cut out in a V shape corresponding to both ends of the cylindrical body W. With the pair of V receiving plates 75, By supporting the outer peripheral surfaces of both ends of the cylindrical body W, the cylindrical body W can be stably placed in a lateral state (horizontal state) in which the axial center is along the X-axis direction.

  The conveyor 6 can transport the cylindrical body W from the upstream side to the downstream side along the Y-axis direction by driving the holding table 7 on which the cylindrical body W is mounted with a drive chain. . Thereby, the cylindrical body W before inspection carried in from the upstream side of the conveyance conveyor 6 is conveyed to the take-in / sending position A of the inspection apparatus main body 1. Further, the cylindrical body W before the inspection at the position A is taken into the inspection apparatus main body 1 to be surface-inspected as described later, while the inspected cylindrical body W is at the take-in / sending position A at the transport conveyor 6. The cylindrical body W is transferred to the downstream side by the transfer conveyor 6.

  In the present embodiment, the transport conveyor 6 constitutes a transport means. Furthermore, the conveyance conveyor 6 as a conveyance means comprises both the carrying-in conveyor as a carrying-in means, and the carrying-out conveyor as a carrying-out means.

  Moreover, in this embodiment, the holding stand 7 does not move up and down, and the height position is kept constant.

  As shown in FIGS. 2 and 3, the inspection apparatus main body 1 is provided with a rotary transfer mechanism 2 for transferring the cylindrical body W along the annular transfer path P.

  The rotary transfer mechanism 2 is provided with a circular rotary frame 202 having a rotary drive shaft 201 corresponding to the center position of the annular transfer path P. The rotation frame 202 is arranged such that the axis of the rotation drive shaft 201 is parallel to the X-axis direction, and can be driven to rotate around the axis by a driving means (not shown).

  Further, four chuck devices 3... That support the cylindrical body W are attached to the outer peripheral edge portion of the rotary frame 202 of the rotary transfer mechanism 2 at regular intervals (every quarter turn) in the circumferential direction. Accordingly, the four chuck devices 3 are arranged at equal intervals along the annular transfer path P. Each chuck device 3... Can move along the annular transfer path P by rotating the rotating frame 202 around the axis of the drive shaft 201 in the clockwise direction of FIG. It has become. As described above, since the four chuck devices 3 are provided at equal intervals along the annular transfer path P, the four chuck devices 3 correspond to the above-described take-in / feed-out position A and inspection position B. And can be present at the same time at four positions of the standby positions C1 and C2.

  In the present embodiment, each chuck device 3 is fixed so that the relative position with respect to the rotating frame 202 does not change. Accordingly, the chuck device 3 at the inspection position B is inverted 180 ° up and down with respect to the chuck device 3 at the take-in / delivery position A. Further, the chuck device 3 at the pre-inspection standby position C1 is rotated 90 ° clockwise with respect to the chuck device 3 at the take-in / delivery position A, and the pre-delivery standby position with respect to the chuck device 3 at the pre-inspection standby position C1. The chuck device 3 of C2 is in a state where it is inverted 180 ° to the left and right.

  In the present embodiment, the take-in / send position A serves as both a cylindrical body take-in position and a cylindrical body feed position.

  7 is a diagram schematically showing the periphery of the inspection position in the inspection apparatus of the first embodiment, FIG. 8 is a side view showing the chuck device 3 arranged at the inspection position B in the apparatus, and FIG. 9 is an inspection position in the apparatus. It is a perspective view of the chuck device 3 arranged in B.

  As shown in FIGS. 7-9, each chuck | zipper apparatus 3 is provided with a pair of chuck | zipper parts 10 and 10 arrange | positioned corresponding to the both sides of the cylindrical body W to chuck.

  The pair of chuck portions 10 and 10 are slidably attached to the pair of chuck bases 101 and 101 along the X-axis direction corresponding to the axial direction of the cylindrical body W. As described above, the chuck bases 101 and 101 are fixed to the outer peripheral edge of the rotary frame 203 in the rotary transfer mechanism 2 (see FIG. 2).

  Each chuck base 101, 101 is provided with a slide drive unit 13, 13 constituted by a cylinder. When the slide driving units 13 and 13 are driven, the pair of chuck units 10 and 10 slide to advance / retreat with respect to both end portions of the cylindrical body W at the take-in / sending position A. It has become.

  The pair of chuck portions 10, 10 are provided with a pair of insertion support portions 12, 12 that can be inserted inside both ends of the cylindrical body W.

  The pair of insertion support portions 12 includes one reference roller 20 constituting a main roller, two auxiliary rollers 30 and 30 constituting a sub roller, and a guide member 40, respectively.

  The pair of insertion support parts 12, 12 slides together with the pair of chuck parts 10, 10 by driving the slide drive parts 13, 13, with respect to both ends of the cylindrical body W at the take-in / delivery position A The advancing / retreating drive is performed (see FIGS. 4 and 6).

  In the present embodiment, in each insertion support portion 12, the direction approaching (advancing) the cylindrical body W is referred to as the front, and the direction moving away (retreating) is referred to as the rear.

  The reference rollers 20 and 20 in the pair of insertion support portions 12 and 12 are supported by the upper end portions of the chuck portions 10 and 10 via the rotation shafts 21 and 21 so that the reference rollers 20 and 20 can rotate around an axis parallel to the X-axis direction. It has become.

  One chuck portion 10 disposed on the left side of FIG. 8 is provided with a reference roller rotation drive motor 14. When the motor 14 is driven, one reference roller 20 is driven to rotate. As will be described later, the cylindrical body W is rotated by rotating one of the reference rollers 20 during inspection.

  As shown in FIG. 7 (a) and the like, the corner portion between the front end surface of the reference rollers 20 and 20 and the outer peripheral surface (rolling surface) is R-chamfered to form an R-chamfer with an arc cross section. Portions 22 and 22 are formed.

  The guide members 40, 40 are provided on the front end surfaces of the pair of reference rollers 20, 20, respectively. The guide members 40, 40 are formed in a tapered shape that gradually decreases in diameter toward the front. The front end portions (tip portions) of the guide members 40, 40 are formed in a substantially hemispherical surface, and as a whole, the guide members 40, 40 are formed in a substantially cone shape (substantially a right cone shape) with a rounded tip.

  Further, the guide members 40 and 40 have outer peripheral tapered surfaces as guide surfaces 41 and 41.

  In the present invention, the tip shape of the guide member is not particularly limited. For example, a guide member having a truncated cone shape having a flat tip or a right cone shape having a sharp tip may be employed. it can.

  The guide members 40 and 40 are formed so that the diameter size of the bottom surface (rear end surface) thereof is substantially equal to the diameter size of the front end surface of the reference roller 20.

  The guide members 40 and 40 are configured to rotate around the axis together with the reference rollers 20 and 20.

  Slide plates 15 and 15 are provided behind the reference rollers 14 and 14 in the pair of chuck portions 10 and 10. The slide plates 15 and 15 are respectively disposed on both lower sides of the rotation shaft 21 of the reference roller 20 in a state where the chuck device 3 is disposed at the inspection position B. The slide plates 15 and 15 are attached to the pair of chuck portions 10 and 10 so as to be slidable along the substantially radial direction with respect to the cylindrical body W. The slide plates 15 and 15 are slid along the outer diameter direction and the inner diameter direction of the cylindrical body W by driving a slide drive unit (not shown).

  The auxiliary rollers 30 and 30 are rotatably supported inside the slide plates 15 and 15 in the radial direction. The auxiliary rollers 30, 30 have the same axial center direction as the cylindrical body W and the reference roller 40, and rotate around the axial center in the X-axis direction.

  In the pair of chuck portions 10, the auxiliary rollers 30 are disposed rearwardly of the reference roller 20, and viewed from the front as viewed from the direction orthogonal to the axis as shown in FIG. The auxiliary rollers 30 are not overlapped with the reference roller 20.

  The auxiliary rollers 30 and 30 are formed to have a smaller diameter than the reference roller 20. Specifically, the diameter size of the auxiliary rollers 30 and 30 is smaller than the dimension obtained by subtracting the radius size of the rotating shaft 21 from the radius size of the reference roller 20. That is, the relationship of “diameter of auxiliary roller 30” <(“radius size of reference roller 20” − “radius size of rotating shaft 21”) is established.

  Further, the auxiliary rollers 30 and 30 slide along with the slide plates 15 and 15 to move along the direction in which the auxiliary rollers 30 and 30 come in contact with and away from the reference roller 20 (substantially the radial direction of the cylindrical body W). It is supposed to be.

  When the slide plates 15 and 15 are slid in the inner diameter direction, the auxiliary rollers 30 and 30 move in a direction close to the reference roller 20 along the substantially radial direction. Thus, when the auxiliary rollers 30, 30 are close to the reference roller 20 in the insertion support portion reduced-diameter state, the entire area of the auxiliary rollers 30, 30 is positioned axially relative to the reference roller 20 (guide member 40) behind the reference roller 20. They are arranged overlapping (in the X-axis direction) (see FIG. 5 and the like). In other words, in the reduced diameter state of the insertion support portion, when the insertion support portion 12 is viewed from the front along the axial direction, the entire area of the auxiliary rollers 30 and 30 is concealed by the reference roller 20 and the guide member 40. It is like that.

  Further, in the present embodiment, in the reduced diameter state of the insertion support portion, the diameter size of the insertion support portion 12 is smaller than the inner diameter size of the cylindrical body W, so that the insertion support portion 12, that is, the reference roller 20 and the auxiliary rollers 30 and 30. The guide member 40 can be inserted inside the inner peripheral surfaces of both ends of the cylindrical body W.

  On the other hand, disk-type or roller-type positioning plates 35, 35 are rotatably supported outside the radial direction of the slide plates 15, 15 that support the auxiliary rollers 30, 30. The positioning plates 35 and 35 have the same axial center direction as that of the auxiliary rollers 30 and 30 and the cylindrical body W, and rotate around the axial center in the X-axis direction.

  The positioning plates 35 and 35 are arranged behind the auxiliary rollers 30 and 30 so as not to overlap the auxiliary rollers 30 and 30 in the front view state shown in FIG. Yes. The positioning plates 35 and 35 are configured to be rotatable in an independent state without being affected by the rotating operation of the auxiliary rollers 30 and 30.

  Further, the positioning plates 35, 35 are slid together with the auxiliary rollers 30, 30 and the slide plates 15, 15 so as to move in a direction in which the positioning plates 35, 35 are moved toward and away from the reference roller 20 (substantially radial direction of the cylindrical body W). It has become.

 As shown in FIG. 3, the chuck device 3 having the above-described configuration is such that the axial center positions of the auxiliary rollers 30 and 30 are higher than the axial center position of the reference roller 20 in the state where the chuck device 3 is disposed at the take-in / send position A. The auxiliary roller arranged is in an upward posture. In the state where the insertion support portion 12 composed of the reference roller 20, the auxiliary rollers 30 and 30 and the guide member 40 moves backward and retracts in the reduced diameter state of the insertion support portion, as shown in FIG. It is arranged on the outer side in the axial direction from both ends of the cylindrical body W conveyed to the take-in / send position A by the conveyor 6. In this state, the guide member 40 and the reference roller 20 are arranged so that the shaft centers thereof substantially coincide with the shaft center of the cylindrical body W.

  Further, in this state, when the pair of chuck portions 10 and 10 advance inward in the axial direction, as shown in FIG. 5, the guide member 40 as the insertion support portion 12, the reference roller 20, and the auxiliary rollers 30 and 30 The cylindrical body W is inserted inside both ends. At this time, the guide member 40 and the reference roller 20 are arranged so that their axial centers substantially coincide with the axial center of the cylindrical body W.

  Then, in order to support (chuck) the cylindrical body W by the chuck device 3, as shown in FIG. 6, the slide plate 15, 15 is slid in the outer diameter direction, and the auxiliary rollers 30 and 30 are moved upward with respect to the reference roller 20 so that the diameter of the insertion support portion is increased. Then, from the state shown by the imaginary line in FIG. 6B, as the auxiliary rollers 30 and 30 are raised, the auxiliary rollers 30 and 30 come into contact with both upper sides of the inner peripheral surface of the cylindrical body W, and the cylindrical body W is moved. Lift up and move away from the cradle 7 as shown by the solid line in the figure. Further, when the cylindrical body W is lifted by the auxiliary rollers 30, 30, the reference roller 20 comes into contact with the lower end portion of the inner peripheral surface of the cylindrical body W. In this way, the three rollers of the one reference roller 20 and the two auxiliary rollers 30 and 30 come into contact with the inner peripheral surfaces of both sides of the cylindrical body W at three points, and the cylindrical body W is stabilized by the three-point support. Supported by

  Further, when one of the reference rollers 20 is driven to rotate in the supporting state as described above, the cylindrical body W is rotated by the rotation of the reference roller 20 and is further rotated along with the rotation of the cylindrical body W. The remaining rollers 20 and 30 rotate. Thereby, smooth rotation of the cylindrical body W is ensured.

  Further, in the state where the cylindrical body W is supported (chucked) in this way, the outer peripheral edge portions of the plate surfaces of the disk-shaped positioning plates 35 and 35 arranged corresponding to both end surfaces of the cylindrical body W are the cylindrical body W. Is in contact with both end faces. Accordingly, the positioning plates 35, 35 are rotated so as to rotate along with the rotation of the cylindrical body W, and the positions of both ends of the cylindrical body W are restricted, thereby preventing the displacement of the cylindrical body W in the axial direction. It has become. That is, the positioning plates 35 and 35 are in contact with both end faces of the cylindrical body so that the positions of both end faces of the cylindrical body at the time of surface inspection are constant, and form a reference body for positioning in the axial direction. .

  On the other hand, as described above, the chuck device 3 is attached to the rotating frame 202 so that the relative position does not change. Therefore, in the rotation transfer mechanism 2, the reference roller 20 is located outside the auxiliary rollers 30, 30 (the diameter of the rotation frame 202) regardless of the positions A, C1, B, C2 of the chuck device 3. (Outside in the direction).

  Specifically, the chuck device 3 at the take-in / send-out position A has an auxiliary roller upward posture (sub-roller upward posture) in which the auxiliary rollers 30 and 30 are disposed above the reference roller 20. In the chuck device 3 at the pre-inspection standby position C1 that makes a 1/4 turn from the position A clockwise in FIG. 2, the reference roller 20 is disposed on the left side of FIG. Further, in the chuck device 3 at the inspection position B that is 1/4 turn from the position C1, the reference roller 20 is in an upward posture of the reference roller (main roller upward posture) disposed above the auxiliary rollers 30 and 30. . Further, in the chuck device 3 at the waiting position C2 before delivery that is 1/4 turn from the position B, the reference roller 30 is arranged on the right side of the auxiliary rollers 30 and 30 in FIG.

  In the present embodiment, in a state where the cylindrical body W is supported by the chuck device 3, the reference roller 20 and the auxiliary roller 30 are in contact with the inner peripheral surface of the cylindrical body W, and thus the outer peripheral surface of the cylindrical body W that is the inspection target region. It is possible to prevent contact marks from being generated.

  Further, the reference rollers 20 and 20 on both sides of the chuck device 3 are supported so that the height position at the time of surface inspection is constant, and by positioning the height position of the cylindrical body W at the surface inspection, a pair of It is the reference body.

  In the present embodiment, as described above, the reference roller 20 on one side is rotationally driven to rotate the cylindrical body W. Thereby, in order to rotationally drive the cylindrical body W, the member which contacts the cylindrical body W can be reduced, and the possibility that the cylindrical body W is damaged is reduced.

  The auxiliary rollers 30 and 30 in the state where the cylindrical body W is chucked are in contact with the upper both sides of the inner peripheral surface of the both ends of the cylindrical body W at the take-in / delivery position A, and urge the cylindrical body W upward. Thus, the upper part of the inner peripheral surface of the cylindrical body is surely brought into contact with the reference roller 20. Therefore, the three rollers 20, 30, 30 can be brought into contact with the inner peripheral surfaces of both ends of the cylindrical body W with appropriate contact pressure, and the cylindrical body W can be supported in a more stable state.

  Since the positioning plates 35 and 35 rotate independently with respect to the auxiliary rollers 30 and 30, the amount of slippage of the positioning plate 35 with respect to the cylindrical body W can be reduced, and the cylindrical body W can be positioned without difficulty. be able to.

  That is, as shown in Patent Document 1, a flange-shaped positioning portion (positioning plate) is integrally formed at the outer end surface (rolling surface) of the auxiliary roller on the outer side (rear side) in the axial center direction. In the chuck device, the positioning flange portion rotates at a high speed at the same peripheral speed as the small-diameter auxiliary roller. For this reason, the sliding amount with respect to the cylindrical body W of a positioning flange part increases, and there exists a possibility that the bad influence by sliding may exert on the cylindrical body W grade | etc.,.

  On the other hand, in the present embodiment, the positioning plates 35 and 35 rotate independently of the auxiliary rollers 30 and 30, and therefore the cylindrical body W regardless of the rotational operation of the auxiliary rollers 30 and 30. According to the rotational movement of the, it comes to rotate independently. For this reason, the sliding amount with respect to the cylindrical body W of the positioning plates 35 and 35 decreases, and it can prevent that the cylindrical body W etc. have the bad influence by sliding.

  Furthermore, in this embodiment, since the positioning plates 35 and 35 rotate according to the rotation of the cylindrical body W, increasing the diameter size of the positioning plates 35 and 35 increases the positioning plate 35 and 35. The amount of sliding with respect to the cylindrical body W of 35 can be further reduced, and the adverse effects due to sliding can be prevented more reliably.

  In this embodiment, the inner peripheral surfaces of both ends of the cylindrical body W are supported at three points by the three rollers 20, 30, 30 of the one reference roller 20 and the two auxiliary rollers 30, 30. W can be supported in a stable state. For this reason, it can test | inspect while rotating the cylindrical body W smoothly, and can obtain a high test | inspection precision.

  Furthermore, in this embodiment, when the auxiliary rollers 30 and 30 are separated from the reference roller 20, the auxiliary rollers 30 and 30 are slid along the substantially radial direction of the cylindrical body W. It can be supported in a more stable state.

  That is, as shown in Patent Document 1, in a chuck device (cylindrical inspection device) in which two auxiliary rollers are moved in parallel to be separated from a reference roller and each roller is brought into contact with a cylindrical body peripheral surface, a cylinder is used. When the body size is large, when the two auxiliary rollers are slid in parallel and brought into contact with the cylindrical body circumferential surface, the distance between the auxiliary rollers cannot be sufficiently large with respect to the cylindrical body circumferential surface. There is. For this reason, when the diameter of the cylindrical body is large, the three rollers of one reference roller and two auxiliary rollers cannot be arranged at equal intervals along the circumferential direction, and the effect of the three-point support May not be fully utilized.

  On the other hand, in this embodiment, since the auxiliary rollers 30 and 30 are slid in the radial direction of the cylindrical body W, the auxiliary rollers 30 and 30 are moved in the outer radial direction to come into contact with the circumferential surface of the cylindrical body. In doing so, the distance between the auxiliary rollers 30 and 30 is appropriately adjusted in accordance with the diameter size of the cylindrical body W. For this reason, regardless of the diameter size of the cylindrical body W, the three rollers 20, 30, 30 of the one reference roller 20 and the two auxiliary rollers 30, 30 are arranged at substantially equal intervals along the circumferential direction. And the cylindrical body W can be supported in a more stable state. Accordingly, the cylindrical body W can be rotated more smoothly, and the inspection accuracy can be further improved.

  In addition, since the auxiliary rollers 30 and 30 are moved in the outer diameter direction with respect to the cylindrical body and brought into contact with the circumferential surface of the cylindrical body, the tangent to the contact position of the auxiliary rollers 30 and 30 on the circumferential surface of the cylindrical body The moving directions of the auxiliary rollers 30 and 30 are substantially perpendicular. For this reason, when the auxiliary rollers 30 and 30 are pressed against the circumferential surface of the cylindrical body, the urging force can be appropriately applied radially toward the outer diameter direction of the cylindrical body W, and the cylindrical body in a more stable state. W can be supported, and the inspection accuracy can be improved more reliably.

  Moreover, once the reference rollers 20 and 20 on both sides of each chuck device 3 are set to an appropriate height position at the inspection position B, even when the surface inspection is performed on the cylindrical body W having a different diameter size, Its height position does not change. Thereby, the height position of the reference | standard rollers 20 and 20 can ensure reliably sufficient positional accuracy.

  Since the height positions of both the reference rollers 20 and 20 are stable in this way, the portion of the inner peripheral surface of the cylindrical body W that is in contact with the reference rollers 20 and 20 has a diameter of the cylindrical body W. Regardless of size, they are always located at the same height.

  In this embodiment, a portion corresponding to the reference rollers 20 and 20 on the outer peripheral surface of the cylindrical body W is used as an inspection region. This inspection region is also always the same height regardless of the diameter size of the cylindrical body W. Set to the position.

  In the present embodiment, the chuck device 3 constitutes a chuck means. Further, the rotary transfer mechanism 2 constitutes transfer means.

<Surface condition detector>
As described above, the surface state of the outer peripheral surface of the cylindrical body W supported and rotated by the chuck device 3 is detected by the surface state detector 50.

  The surface state detector 50 detects at least one of scratches, dents, dirt, discoloration, alteration, and other surface defects on the outer peripheral surface of the cylindrical body W.

  In this embodiment, a straight line that faces the outside of the cylindrical body W is defined as a reference line with respect to a virtual straight line that passes through a contact portion where both the reference rollers 20 and 20 and the inner peripheral surface of the cylindrical body W are in contact with each other in the chuck device 3. I will call it. In the surface inspection apparatus, the position and angle (orientation) of the outer peripheral surface of the cylindrical body W are set so that the inspection region is on or near the reference line and the surface inspection is performed on the inspection region. ing.

  As shown in FIGS. 2 and 7, in this embodiment, the surface state detector 50 receives the illumination 51 that irradiates the outer peripheral surface of the cylindrical body W with the inspection illumination light, and the reflected light from the cylindrical body W to receive the surface. And a camera 52 for detecting the state.

  The illumination 51 is composed of, for example, a fluorescent lamp corresponding to the length of the cylindrical body W, and irradiates the inspection illumination light to a region including the reference line on the outer peripheral surface of the cylindrical body W.

  The camera 52 is composed of, for example, a line sensor camera whose detection area is an elongated area along the longitudinal direction of the cylindrical body W, and the detection area is on the reference line on the outer peripheral surface of the cylindrical body W or in the vicinity thereof. Its position and angle are set.

  Further, in this embodiment, the surface state detector 50 detects the surface state by receiving regular reflection light among the reflected light of the inspection illumination light. For this reason, the position and angle of the illumination 51 and the camera 52 are set with respect to the position of the reference line on the outer peripheral surface of the cylindrical body W and the orientation of the surface.

  Here, since the inner peripheral surface of the cylindrical body W is positioned by the reference rollers 20 and 20 on both sides of the chuck device 3, the cylindrical body even if the diameter size changes, as long as the thickness of the cylindrical body W does not change. The position of the reference line on the outer peripheral surface of W and the orientation (angle) of the surface do not change. For this reason, it is possible to easily cope with various diameter sizes of the cylindrical body W without exchanging any inspection jig or the like as it is, and since there is no need to replace the inspection jig or the like, high inspection accuracy is also achieved. Can be secured.

  In this way, the same jig can be used for inspection of the cylindrical body W of each diameter size.

  Further, even when the diameter size of the cylindrical body W to be inspected is changed, the positional relationship between the surface state detector 50 and the reference line does not change. Man-hours and time can be reduced.

  Therefore, it is possible to construct an inexpensive inspection system suitable for industrialization, corresponding to the cylindrical body W having various diameters with high accuracy.

<Control device>
As shown in FIG. 2, the surface inspection apparatus according to the present embodiment includes a controller 100 constituted by a personal computer or the like, and the controller 100 controls the driving of each drive unit of the surface inspection apparatus, which will be described later. The surface inspection is automatically performed according to the procedure.

  Furthermore, the controller 100 determines the quality of the surface state of the cylindrical body W based on the image data acquired by the camera 52. As for this determination method, a conventionally known method such as a method of determining pass / fail by comparing the acquired image data with reference data stored in advance is used.

<Inspection procedure>
Next, a surface inspection procedure in the surface inspection apparatus will be described.

  As shown in FIG. 4, the chuck device 3 at the take-in / send position A has a pair of chuck portions 10, 10 retracted, and a pair of guide members 40, a reference roller 20, auxiliary rollers 30, 30, and the like. The insertion support portions 12 and 12 are in a reduced diameter state of the insertion support portion and are in an upward posture of the auxiliary roller. Further, it is assumed that the chuck bodies 3... At the pre-inspection standby position C1, the inspection position B, and the pre-delivery standby position C2 each support the cylindrical body W.

 Further, in the conveyor 6, it is assumed that an uninspected (before inspection) cylindrical body W is placed on the holding table 7 at the take-in / send-out position A.

  In this state, as shown in FIG. 5, the pair of chuck portions 10, 10 in the chuck device 3 at the take-in / delivery position A advances, and a pair of insertion support portions 12, 12 is inserted. Thereafter, as shown in FIG. 6, the auxiliary rollers 30, 30 of the pair of insertion support portions 12, 12 move upward with respect to the reference roller 20, shift to an insertion support portion expanded diameter state, and the cylindrical body W The inner peripheral surfaces of both ends are supported by the reference roller 20 and the auxiliary rollers 30 and 30. At this time, as already described, the cylindrical body W is lifted by the auxiliary rollers 30 and 30, and thus is separated upward from the cradle 7 as indicated by an imaginary line in FIG. 3 and a solid line in FIG. 6.

  After the cylindrical body W is lifted and supported by the pair of insertion support portions 12 and 12 in this way, the rotary frame 202 of the rotary transfer mechanism 2 rotates 1/4 of the clockwise direction in FIG. As a result, the cylindrical body W supported by the chuck device 3 at the take-in / delivery position A rotates and moves to the pre-inspection standby position C1. At the time of this rotational movement, the cylindrical body W is separated upward from the holding table 7, so that it is reliably prevented from contacting or interfering with the holding table 7. Therefore, in order to avoid interference with the cylindrical body W after chucking, there is no need to retract the holding table 7 downward. In this way, since the holding table raising / lowering mechanism for moving the holding table 7 up and down is unnecessary, the number of parts can be reduced correspondingly, and the structure can be simplified, the apparatus can be downsized, and the cost can be reduced. Can do.

  Further, the rotation of the rotary frame 202 moves the cylindrical body W at the pre-inspection standby position C1 to the inspection position A, and the cylindrical body W at the inspection position A moves to the pre-delivery standby position C2 and before the transmission. The cylindrical body W in the standby position C2 moves to the take-in / send-out position A.

  As shown in FIG. 7, the cylindrical body W moved to the inspection position B is rotated around the axis, irradiated with inspection illumination light from the illumination 51, and the reflected light (regular reflection light) is received by the camera 52. By doing so, the surface condition is inspected. This surface inspection is performed on the entire circumference of the cylindrical body W after one or more rotations.

  At the inspection position B, as shown in FIGS. 3 and 7, the pair of insertion support portions 12 and 12 are in the upward orientation of the reference roller in which the reference roller 20 is disposed above the auxiliary rollers 30 and 30. Yes.

  Here, in the present embodiment, the rotation of the cylindrical body W is started in advance before the cylindrical body W is conveyed to the inspection position B. For example, when moving to the pre-inspection standby position C1, the reference roller 20 on one side of the chuck device 3 is rotationally driven, and the cylindrical body W and the rollers 20 and 30 are rotated. Thereby, after stabilizing the rotation operation of the cylindrical body W, it can be moved to the inspection position B. For this reason, when the cylindrical body W is moved to the inspection position B, the rotation is stable, and the surface inspection can be started immediately. Thus, it is not necessary to perform a preliminary operation at the inspection position B, and the inspection efficiency can be improved accordingly.

  However, in the present invention, it is not always necessary to start the rotation of the cylindrical body W at the standby position C1 before the inspection, and the rotation of the cylindrical body W is started during the movement from the standby position C1 before the inspection to the inspection position B. The rotation of the cylindrical body W may be started during the movement from the take-in / delivery position A to the pre-inspection standby position C1. In short, if the rotation of the cylindrical body W is started before reaching the inspection position B, the inspection efficiency can be improved (the same applies to the second embodiment below).

  In the present embodiment, air blow means (not shown) is provided corresponding to the standby position C1 before inspection, and air is supplied from the air blow means to the outer peripheral surface of the cylindrical body W transferred to the standby position C1 before inspection. Is blown away, dust and dirt attached to the outer surface of the cylindrical body W are blown away, and the surface is cleaned.

  Further, the cylindrical body W that has moved from the inspection position B to the pre-delivery standby position C2 stops rotating and waits.

  Further, the cylindrical body W moved from the standby position C2 before sending to the take-in / sending position A is transferred to the holding table 7. That is, when the chuck device 3 that supports the inspected cylindrical body W moves from the pre-delivery standby position C2 to the take-in / feed-out position A, as described above, the preceding chuck device 3 performs the holding table. An unexamined cylindrical body W on 7 is chucked and moved to a pre-inspection standby position C1, so that an empty reserve table 7 is disposed at the take-in / send-out position A. At this time, the inspected cylindrical body W chucked by the subsequent chuck device 3 is arranged in a state of being spaced apart from the empty holding table 7 by a predetermined amount. The interval between the cylindrical body W and the holding table 7 corresponds to the lifting amount when the cylindrical body W is lifted from the holding table 7 when the cylindrical body W is chucked by the preceding chuck device 3. . Further, in the chuck device 3, at the take-in / feed-out position A, the pair of insertion support portions 12 and 12 are in an upward posture of the auxiliary roller.

  In the chuck device 3, the chuck of the cylindrical body W is released in a state where the cylindrical body W chucked to the chuck device 3 is spaced upward from the empty holding table 7. That is, the state shifts from the insertion support portion diameter-expanded state (chuck state) to the insertion support portion diameter-reduced state (chuck release state). As a result, the auxiliary rollers 30, 30 arranged on the upper side with respect to the reference roller 20 descend so as to approach the reference roller 20. By this descent, the reference roller 20 is separated from the lower end of the inner peripheral surface of the cylindrical body W from the state shown by the solid line in FIG. Further, as the auxiliary rollers 30, 30 are lowered, the cylindrical body W is transferred with the lower side of the outer peripheral surface contacting the holding table 7, and then the auxiliary rollers 30, 30 are moved from the upper side of the inner peripheral surface of the cylindrical body W. It will be separated and will be in the state shown by the imaginary line of FIG.

  After the cylindrical body W is transferred from the chuck device 3 to the holding table 7 in this way, the pair of chuck portions 10 and 10 are retracted to both sides, and as shown in FIG. Is disposed at a position retracted outward from both ends of the cylindrical body W.

  Thereafter, the transport conveyor 6 is transported by one pitch (the mounting interval of the retainer 7), and the retainer 7 on which the inspected cylindrical body W is transferred is moved downstream from the take-in / send position A. On the other hand, a new cradle 7 on which the uninspected cylindrical body W is placed is carried into the take-in / send-out position A. In this way, the uninspected cylinder W carried into the take-in / delivery position A is chucked by the chuck device 3 and rotated to the pre-inspection standby position C1 as described above.

  In the surface inspection apparatus according to the present embodiment, the inspected cylindrical body W is placed at the take-in / sending position A in parallel with the surface inspection of the cylindrical body W at the inspection position B. 7, after transferring the conveyor 6 by one pitch, the uninspected cylindrical body W is chucked.

  As described above, in the surface inspection apparatus according to the present embodiment, the uninspected cylindrical body W is sequentially sent to the inspection position B by the conveyor 6 and the rotary transfer mechanism 2 to perform the surface inspection, while the inspected cylindrical body. W is sequentially carried out by the rotary transfer mechanism 2 and the transfer conveyor 6.

  As described above, according to the cylindrical surface inspection apparatus of this embodiment, when the cylindrical body W placed on the holding table 7 is chucked by the chuck device 3, the auxiliary rollers 30 and 30 are used as the reference roller 20. , The cylindrical body W is lifted by the auxiliary rollers 30 and 30 and separated from the holding table 7. For this reason, without causing the cylindrical body W to interfere with the mounting table 7, rotation of the cylindrical body W around the axis can be started or the cylindrical body W can be transferred along the annular transfer path P. . Therefore, the surface inspection apparatus according to the present embodiment does not need to be provided with a cradle raising / lowering mechanism for retracting the cradle 7 downward in order to avoid interference with the cylindrical body W, and accordingly, the number of parts can be reduced. Thus, the structure can be simplified, the apparatus can be reduced in size, and the cost can be reduced.

  In particular, as in this embodiment, when a large number of holding stands 7 are installed, it is possible to omit all the lifting mechanisms that need to be installed for each holding stand, and the number of parts can be greatly reduced. A great effect can be obtained. Furthermore, in this embodiment, since the number of parts can be significantly reduced, the maintenance and inspection of the apparatus can be easily performed.

  In the surface inspection apparatus according to the present embodiment, when the cylindrical body W chucked by the chuck device 3 is rotationally transferred from the pre-delivery standby position C2 to the capture / delivery position A, the cylindrical body W is captured / delivered. Since it is arranged at a position spaced upward from the holding table 7 waiting at the position A, it is possible to prevent the cylindrical body W from interfering with the holding table 7.

  In the present embodiment, when the chuck of the chuck device 3 is released in a state where the cylindrical body W chucked by the chuck device 3 is disposed above the holding table 7, as described above, the chuck release operation is performed. Then, the cylindrical body 7 is lowered and transferred onto the holding table 7 without difficulty. For this reason, it is not necessary to raise the cradle 7 to the height position of the cylindrical body 7 when releasing the chuck.

  More specifically, when the chuck is released, the cylindrical body W is not lowered, and if it is in a state of being spaced apart upward from the cradle 7, the pair of support insertion portions 12 and 12 are extracted from the cylindrical body W after the chuck is released. At this time, the cylindrical body W may fall to the position of the holding table 7. For this reason, when the cylindrical body W does not descend when the chuck is released, it is necessary to raise the cradle 7 to the height position of the cylindrical body 7.

  On the other hand, in the surface inspection apparatus of the present embodiment, as described above, it is not necessary to raise the holding table 7 when releasing the chuck, and in this respect also, a setting for raising and lowering the holding table 7 There is no need to provide a platform elevating mechanism, the number of parts can be further reduced, and the structure can be simplified, the apparatus can be reduced in size, and the cost can be reduced more reliably.

  Further, in the present embodiment, a single conveyor conveyer 6 carries in the cylindrical body W into the rotary transfer mechanism 2 (loading means), and a carry-out conveyor (unloading means) carries out the cylindrical body W from the rotary transfer mechanism 2. ), The number of parts can be further reduced and the structure can be simplified more reliably than in the case where the carry-in conveyor and the carry-out conveyor are provided separately.

  Further, in the present embodiment, when the pair of insertion support portions 12 and 12 of the chuck device 3 are inserted into the inner sides of both side ends of the cylindrical body W, the entire area of the auxiliary rollers 30 and 30 is the reference roller 20 (guide member 40). Therefore, the diameter size of the insertion support portion 12 is equal to the diameter size of the reference roller 20. For this reason, even if the diameter size of the insertion support part 12 becomes very small and the cylindrical body W is slightly displaced with respect to the chuck device 3, the insertion support part 12 remains corresponding to the inner peripheral surface of the cylindrical body W. Is maintained. Therefore, it is possible to effectively prevent the auxiliary rollers 30 and 30 from coming into contact with the end surface of the cylindrical body W, and the reference roller 20 and the auxiliary rollers 30 and 30 can be smoothly inserted into the cylindrical body W.

  Furthermore, in this embodiment, since the tapered guide member 40 is provided on the front end surface of the reference roller 20, the cylindrical body W is seen from the front side (see FIGS. 3 and 4). Even when the position of the guide member 40 is shifted to the position where it interferes with the reference roller 20, when the guide member 40 is inserted inside the both side ends of the cylindrical body W, the cylindrical body W is guided by the guide surfaces 41 of the guide member 40. The position of the cylindrical body W is corrected. Accordingly, the reference roller 20 and the auxiliary rollers 30 and 30 can be smoothly inserted inside the both side end portions of the cylindrical body W without contacting the both side end surfaces of the cylindrical body W.

  Even if the cylindrical body W is displaced as described above, the reference roller 20 and the auxiliary rollers 30 and 30 can be reliably inserted without inadvertently interfering with the cylindrical body W, so that the cylindrical body W is damaged. It is possible to reliably prevent problems such as these.

  In the present embodiment, since the entire area of the auxiliary rollers 30 is overlapped with the reference roller 20 in the axial direction, if the diameter size of the cylindrical body W is larger than the diameter size of the reference roller 20, the reference roller 20 and the auxiliary rollers 30 and 30 can be reliably inserted into the cylindrical body W. For this reason, it is particularly effective when inspecting a cylindrical body W having a very small diameter size.

  Further, in this embodiment, since the auxiliary rollers 30 are separated from the reference roller 20 along the axial direction, the area where the auxiliary rollers 30 are in contact with each other on the inner peripheral surface of the cylindrical body W It is possible to prevent the contact area between the rollers 20 and 30 from being overlapped due to a deviation from the area where the reference roller 20 contacts in the axial direction. For this reason, it is hard to produce the roller trace by rolling of the rollers 20 and 30, the quality fall of the cylindrical body W can be prevented reliably, and high quality can be maintained.

Second Embodiment
FIG. 10 is a side view showing a cylindrical surface inspection apparatus according to a second embodiment of the present invention, and FIG. 11 is a side view schematically showing a rotary transfer mechanism 2 of the apparatus.

  As shown in these drawings, the surface inspection apparatus according to the second embodiment is substantially different from the first embodiment in that the chuck apparatus 3 is provided in the rotary transfer mechanism 2 in the first embodiment. In contrast to the square type (regular tetragon type) provided by four, the second embodiment is a pentagon type (regular pentagon type) provided with five chuck devices 3.

  That is, five chuck devices 3 are attached to the outer peripheral edge portion of the rotating frame 202 in the rotation transfer mechanism 2 of the inspection apparatus main body 1 at equal intervals in the circumferential direction. Accordingly, the pair of insertion support portions 12 and 12 of the chuck device 3 are arranged on the annular transfer path P at regular intervals.

  In this rotary transfer mechanism 2, the upper end position on the annular transfer path P is configured as the inspection position B, and the position 1/5 of the clockwise rotation in FIGS. 10 and 11 from the inspection position B is the standby position C2 before sending. The position that is configured and is 2/5 round from the inspection position B is configured as the sending position A2, and the position that is 3/5 round from the inspection position A is configured as the take-in position A1, and is the position that is 4/5 round from the inspection position A. Is configured as a pre-inspection standby position C1.

  Further, in the chuck device 3 at the take-in position A1, the auxiliary rollers 30 and 30 are in an upward posture of the auxiliary roller disposed obliquely upward to the right with respect to the reference roller 20 in the side view state of FIGS. In the chuck device 3 at the delivery position A2, the auxiliary rollers 30 are in an upward posture with respect to the reference roller 20, which is disposed obliquely above and to the left. Further, at the inspection position B, the reference roller 20 is in an upward posture with the reference roller disposed above the auxiliary rollers 30 and 30.

  Further, in the conveyor 6, any one of the holding stands 71 is arranged corresponding to the take-in position A1 and the send-out position A2 every time one pitch is fed.

  In the surface inspection apparatus according to the second embodiment, the other configuration is substantially the same as the configuration of the surface inspection apparatus according to the first embodiment. Is omitted.

  Next, an inspection procedure by the surface inspection apparatus according to the second embodiment will be described.

  The initial state is that the uninspected cylinder W is placed on the take-up stand 7 at the take-in position A1 among the take-up stands 7 on the transport conveyor 6, and the take-up stand 7 at the delivery position A2 The cylindrical body W is not placed, and the holding table 7 is empty.

  In the rotary transfer mechanism 2, the chuck device 3 at the take-in position A1 has a pair of chuck portions 10 and 10 retracted, and a pair of insertion supports such as a guide member 40, a reference roller 20, and auxiliary rollers 30 and 30. The portions 12 and 12 are in a reduced diameter state of the insertion support portion so that they can be inserted inside the inner diameter of the cylindrical body W (see FIG. 4 and the like). Cylindrical bodies W are respectively chucked on the chuck devices 3 at the pre-inspection standby position C1, the inspection position B, the pre-delivery standby position C2, and the transmission position A2.

  In this state, the pair of chuck portions 10, 10 in the chuck device 3 at the take-in position A <b> 1 advances, and the pair of insertion support portions 12, 12 are inserted inside the side end portions of the cylindrical body W.

  Thereafter, as shown in FIGS. 11 and 12, the insertion support portions 12 and 12 of the pair of insertion support portions 12 and 12 move in a direction in which the auxiliary rollers 30 and 30 are separated from the reference roller 20, so that the diameter is expanded. Transition. At this time, since the auxiliary rollers 30, 30 are in an upward posture of the auxiliary roller disposed obliquely upward to the right with respect to the reference roller 20, the inner peripheral surface of the cylindrical body W is pushed by the rising auxiliary rollers 30, 30. 11 and 12, the cylindrical body W is lifted obliquely upward to the right and is separated from the cradle 7. Thereafter, the reference roller 20 comes into contact with the inner peripheral surface of the cylindrical body W, and the inner peripheral surface of the cylindrical body W is supported (chucked) by the reference roller 20 and the auxiliary rollers 20 and 20.

  Further, the cylindrical body W at the inspection position B is subjected to surface inspection while rotating around the axis as in the first embodiment (see FIG. 7 and the like).

  At the delivery position A2, the inspected cylindrical body W chucked by the chuck device 3 is transferred to the holding table 7. That is, as shown in FIG. 11.13, at the delivery position A2, the chuck device 3 is in the upward posture of the auxiliary roller, and the chucked cylindrical body W is in FIG. As shown by the solid line, it is arranged diagonally upward to the left. In this state, the chuck of the cylindrical body W is released, and the state shifts from the insertion support portion diameter expanded state (chuck state) to the insertion support portion reduced diameter state (chuck released state). As a result, the auxiliary rollers 30, 30 arranged diagonally to the left of the reference roller 20 are lowered so as to approach the reference roller 20. By this descent, first, the reference roller 20 is separated from the right side portion of the cylindrical body W on the lower side of the inner peripheral surface. Further, as the auxiliary rollers 30 and 30 are lowered, the cylindrical body W is transferred with its lower outer peripheral surface in contact with the holding table 7, and then the auxiliary rollers 30 and 30 are placed on the upper inner peripheral surface of the cylindrical body W. Separate from the left part.

  After the cylindrical body W is thus transferred from the chuck device 3 to the holding table 7, the pair of chuck portions 10, 10 retreats on both sides, and the pair of insertion support portions 12, 12 are at both ends of the cylindrical body W. (See FIG. 4 etc.).

  In the second embodiment, a take-in process (chuck process) for chucking the cylindrical body W at the take-in position A1, an inspection process for inspecting the surface of the cylindrical body W at the test position B, and a cylindrical body at the delivery position A2. A sending process (chuck releasing process) for transferring W to the holding table 7 is performed in parallel.

  When all these processes are completed, the rotary frame 202 of the rotary transfer mechanism 2 rotates 1/5 round (one pitch) clockwise in FIG. Thus, the cylindrical bodies W... Positioned at the take-in position A1, the pre-inspection standby position C1, the inspection position B, the pre-delivery standby position C2, and the transmission position A2 are the pre-inspection standby position C1, the inspection position B, and the pre-delivery position, respectively. It rotates to the standby position C2, the delivery position A2, and the take-in position A1.

  Here, when the cylindrical body W at the take-in position A1 rotates and moves to the pre-inspection standby position C1, the cylindrical body W is obliquely separated from the stand 7 at the attachment position A1, so Interference with the base 7 is reliably prevented. Therefore, as in the first embodiment, in order to avoid interference with the cylindrical body W, there is no need for a cradle lifting mechanism that retracts the cradle 7 downward, and the number of parts can be reduced accordingly. Therefore, the structure can be simplified, the apparatus can be reduced in size, and the cost can be reduced.

  Further, the cylindrical body W that has been rotationally moved from the standby position C2 before sending to the sending position A2 is arranged diagonally to the left of the holding table 7 at the sending position A2. For this reason, it is possible to prevent the cylindrical body W from interfering with the holding table 7 during this rotational movement.

  As described above, the cylindrical body W chucked at the delivery position A2 descends obliquely downward to the right along with the chuck releasing operation, so that it is easily transferred to the holding table 7. For this reason, as in the first embodiment, it is not necessary to raise the holding table 7 when releasing the chuck, and in this respect, it is not necessary to provide a holding table lifting mechanism for raising and lowering the holding table 7. Therefore, the number of parts can be further reduced, and the structure can be simplified, the apparatus can be downsized, and the cost can be reduced more reliably.

  Also in the second embodiment, similarly to the first embodiment, before the rotational movement to the inspection position B, the rotation of the cylindrical body W is started to stabilize the rotation, and the inspection position B is reached. The inspection can be performed immediately after moving. For example, at the standby position C1 before inspection, the rotation operation of the cylindrical body W is started to stabilize the rotation.

  Further, as in the first embodiment, air is blown from the air blowing means (not shown) to the outer peripheral surface of the cylindrical body W in the pre-inspection standby position C1 between the take-in position A and the inspection position B, for example. Therefore, the surface is cleaned.

  On the other hand, in the second embodiment, the conveyor 6 is conveyed by one pitch in parallel with the rotation operation for one pitch in the rotating frame 202 of the rotary transfer mechanism 2. As a result, a new uninspected cylinder W is carried into the take-in position A1, and the inspected cylinder W sent to the delivery position A2 is carried out downstream.

  By repeating the above operation, the uninspected cylinder W is sequentially sent to the inspection position B by the conveyor 6 and the rotary transfer mechanism 2 to perform surface inspection, while the inspected cylinder W is Then, it is sequentially carried out by the rotary transfer mechanism 2 and the conveyer 6.

  As described above, also in the surface inspection apparatus of the second embodiment, the same effects as those of the surface inspection apparatus of the first embodiment can be obtained.

  Furthermore, in this surface inspection apparatus, the take-in position A1 and the delivery position A2 are provided separately, the take-in process of the cylindrical body W at the take-in position A1, and the cylinder body W at the send-out position A2. Since the sending process is performed in parallel, the capturing process and the sending process can be smoothly performed and the inspection efficiency can be further improved as compared with the case where these processes are sequentially performed over time. be able to.

<Third Embodiment>
FIG. 14 is a side view showing a cylindrical surface inspection apparatus according to a third embodiment of the present invention, and FIG. 15 is a side view schematically showing a rotary transfer mechanism 2 of the apparatus.

  As shown in these drawings, the surface inspection apparatus of the third embodiment is substantially different from the above-described embodiment in that, in the above-described embodiment, four or five chuck devices 3 are provided in the rotary transfer mechanism 2. In contrast to this, the third embodiment is a triangular type (regular triangle type) in which three chuck devices 3 are provided.

  That is, three chuck devices 3 are attached to the outer peripheral edge portion of the rotating frame 202 in the rotation transfer mechanism 2 of the inspection apparatus body 1 at equal intervals in the circumferential direction. Accordingly, the pair of insertion support portions 12 and 12 of the chuck device 3 are arranged on the annular transfer path P at regular intervals.

  In this rotary transfer mechanism 2, the upper end position on the annular transfer path P is configured as the inspection position B, and the position that is １ ／ of the clockwise direction in FIGS. The position 2/3 round from the inspection position B is configured as the capture position A1.

  Further, the chuck device 3 at the take-in position A1 is in the side view state of FIG. 15, and the auxiliary rollers 30 and 30 are in the upward posture of the auxiliary roller disposed obliquely upward to the right with respect to the reference roller 20, and the sending position A2 In the chuck device 3, the auxiliary rollers 30, 30 are in an upward posture of the auxiliary roller disposed obliquely upward to the left with respect to the reference roller 20. Further, the chuck device 3 at the inspection position B assumes an upward posture of the reference roller in which the reference roller 20 is disposed above the auxiliary rollers 30 and 30.

  Further, in the conveyor 6, any one of the holding stands 71 is arranged corresponding to the take-in position A1 and the send-out position A2 every time one pitch is sent.

  In the surface inspection apparatus according to the third embodiment, the other configurations are substantially the same as the configuration of the surface inspection apparatus according to the above-described embodiment. To do.

  Next, an inspection procedure by the surface inspection apparatus according to the third embodiment will be described.

  The initial state is that the uninspected cylinder W is placed on the take-up stand 7 at the take-in position A1 among the take-up stands 7 on the transport conveyor 6, and the take-up stand 7 at the delivery position A2 The cylindrical body W is not placed, and the holding table 7 is empty.

  In the rotary transfer mechanism 2, the chuck device 3 at the take-in position A1 has a pair of chuck portions 10 and 10 retracted, and a pair of insertion supports such as a guide member 40, a reference roller 20, and auxiliary rollers 30 and 30. The portions 12 and 12 are in a reduced diameter state of the insertion support portion so that they can be inserted inside the inner diameter of the cylindrical body W (see FIG. 4 and the like). Further, the cylindrical bodies W are chucked on the chuck devices 3 at the inspection position B and the delivery position A2, respectively.

  In this state, the pair of chuck portions 10, 10 in the chuck device 3 at the take-in position A <b> 1 advances, and the pair of insertion support portions 12, 12 are inserted inside the side end portions of the cylindrical body W.

  Thereafter, as shown in FIG. 15, in the insertion support portions 12, 12 of the pair of insertion support portions 12, 12, the auxiliary rollers 30, 30 move in a direction away from the reference roller 20 and shift to a diameter-expanded state. To do. At this time, since the auxiliary rollers 30 and 30 are disposed obliquely upward and to the right with respect to the reference roller 20, the inner peripheral surface of the cylindrical body W is pushed by the moving auxiliary rollers 30 and 30, and the cylindrical body W is inclined obliquely to the right. It is lifted upward and separated from the cradle 7. Thereafter, the reference roller 20 comes into contact with the inner peripheral surface of the cylindrical body W, and the inner peripheral surface of the cylindrical body W is supported by the reference roller 20 and the auxiliary rollers 20 and 20.

  Further, the cylindrical body W at the inspection position B is subjected to surface inspection while rotating around the axis as in the first embodiment (see FIG. 7 and the like).

  At the delivery position A2, the inspected cylindrical body W chucked by the chuck device 3 is transferred to the holding table 7. That is, as shown in FIG. 15, at the delivery position A <b> 2, the cylindrical body W chucked by the chuck device 3 is disposed obliquely upward and to the left with respect to the empty holding table 7. In this state, the chuck of the cylindrical body W is released, and the state shifts from the insertion support portion diameter expanded state (chuck state) to the insertion support portion reduced diameter state (chuck released state). As a result, the auxiliary rollers 30, 30 arranged diagonally to the left of the reference roller 20 move so as to approach the reference roller 20. By this movement, first, the reference roller 20 is separated from the right side portion of the cylindrical body W on the lower side of the inner peripheral surface. Further, along with the movement of the auxiliary rollers 30, 30, the cylindrical body W is transferred with its lower outer peripheral surface in contact with the holding table 7, and then the auxiliary rollers 30, 30 are placed on the upper inner peripheral surface of the cylindrical body W. Separate from the left part.

  After the cylindrical body W is thus transferred from the chuck device 3 to the holding table 7, the pair of chuck portions 10, 10 retreats on both sides, and the pair of insertion support portions 12, 12 are at both ends of the cylindrical body W. (See FIG. 4 etc.).

  In the second embodiment, the taking-in process at the taking-in position A1, the inspecting process at the inspecting position B, and the sending-out process at the sending position A2 (chuck release process) are performed in parallel.

  When all of these processes are completed, the rotating frame 202 of the rotary transfer mechanism 2 rotates 1/3 of a turn (one pitch) clockwise in FIG. As a result, the cylindrical bodies W... Located at the take-in position A1, the inspection position B, and the delivery position A2 are rotationally moved to the inspection position B, the delivery position A2, and the take-in position A1, respectively.

  Here, when the cylindrical body W at the taking-in position A1 rotates and moves to the inspection position B, the cylindrical body W is separated obliquely upward from the holding table 7 at the mounting position A1, so that the holding table 7 Is reliably prevented from interfering with. Therefore, as in the first embodiment, in order to avoid interference with the cylindrical body W, there is no need for a cradle lifting mechanism that retracts the cradle 7 downward, and the number of parts can be reduced accordingly. Therefore, the structure can be simplified, the apparatus can be reduced in size, and the cost can be reduced.

  In addition, the cylindrical body W that has been rotationally moved from the inspection position B to the delivery position A2 is arranged obliquely above and to the left of the holding table 7 at the delivery position A2. For this reason, it is possible to prevent the cylindrical body W from interfering with the holding table 7 during this rotational movement. Further, as in the first and second embodiments, it is not necessary to raise the holding table 7 when releasing the chuck, so there is no need to provide a holding table lifting mechanism for raising and lowering the holding table 7, and the number of parts can be reduced. It can be further reduced.

  On the other hand, in the third embodiment, the transport conveyor 6 is transported by one pitch in parallel with the rotation operation for one pitch in the rotating frame 202 of the rotary transfer mechanism 2. As a result, a new uninspected cylinder W is carried into the take-in position A1, and the inspected cylinder W sent to the delivery position A2 is carried out downstream.

  By repeating the above operation, the uninspected cylinder W is sequentially sent to the inspection position B by the conveyor 6 and the rotary transfer mechanism 2 to perform surface inspection, while the inspected cylinder W is Then, it is sequentially carried out by the rotary transfer mechanism 2 and the conveyer 6.

  As described above, also in the surface inspection apparatus of the third embodiment, similar effects can be obtained as in the surface inspection apparatuses of the first and second embodiments.

  Further, as in the second embodiment, the surface inspection apparatus performs the capture process at the capture position A1 and the delivery process at the delivery position A2 in parallel, thereby further improving the inspection efficiency. Can be improved.

  In the third embodiment as well, the rotation of the cylindrical body W can be stabilized before being transferred to the inspection position B. For example, by rotating the cylindrical body W immediately after the cylindrical body W is chucked at the take-in position A1, when the cylindrical body W is transferred to the inspection position B, the rotation of the cylindrical body W is stabilized. be able to. Therefore, as in the first and second embodiments, after being transferred to the inspection position B, the surface inspection can be performed immediately without performing the preliminary operation, and the inspection efficiency can be improved. Further, since the cylindrical body W is separated from the holding table 7 at the time of chucking, even if the cylindrical body W is rotated immediately after the chucking, the cylindrical body W does not interfere with the holding table 7.

  Further, in the present embodiment, as in the first and second embodiments, between the take-in position A and the inspection position B, air is blown to the outer peripheral surface of the cylindrical body W to clean the surface. Is also possible.

<Fourth embodiment>
FIG. 16 is a side view showing a cylindrical surface inspection apparatus according to a fourth embodiment of the present invention, and FIG. 17 is a side view schematically showing a rotary transfer mechanism 2 of the apparatus.

  As shown in these drawings, four chuck devices 3 are mounted at equal intervals in the circumferential direction on the outer peripheral edge portion of the rotary frame 202 in the rotary transfer mechanism 2 of the surface inspection apparatus of the fourth embodiment. . Accordingly, the pair of insertion support portions 12 and 12 of the chuck device 3 are arranged on the annular transfer path P at regular intervals.

  In this rotary transfer mechanism 2, the upper end position on the annular transfer path P is configured as the inspection position B, and the position that is ¼ turn clockwise from the inspection position B in FIGS. 16 and 17 is configured as the delivery position A 2. The position 2/4 round from the inspection position B is configured as a standby position C3 before capture, and the position 3/4 round from the inspection position B is configured as a capture position A1.

  Further, the chuck device 3 is fixed to the rotating frame 202 so that the auxiliary rollers 30 are disposed above the reference roller 20 when the chuck device 3 is disposed at the take-in position A1. Accordingly, the chuck device 3 located at the inspection position B is in a state in which the reference roller 20 is disposed on the left side with respect to the auxiliary rollers 30 and 30 in the side view of FIG. Further, the chuck device 3 located at the delivery position A2 has the reference roller 20 in an upward posture with the reference roller 20 disposed above the auxiliary rollers 30 and 30. That is, at the delivery position A2, the chuck device 3 is not in the upward posture of the auxiliary roller. Further, in the chuck device 3 positioned at the pre-take-in standby position C <b> 3, the auxiliary rollers 30 and 30 are arranged on the left side with respect to the reference roller 20.

  Further, in the surface inspection apparatus according to the present embodiment, the region corresponding to the reference roller 20 on the outer peripheral surface of the cylindrical body W arranged at the inspection position B, that is, the left end portion on the outer peripheral surface of the cylindrical body W in the side view of FIG. These areas are configured as inspection areas. Therefore, the surface condition inspector 50 such as the illumination 51 and the camera 52 irradiates the left end region (inspection region) of the cylindrical body W at the inspection position B with the illumination light from the illumination 51, and regular reflection in the inspection region. The position and angle (orientation) are set so that light can be received by the camera 52.

  Moreover, the surface inspection apparatus of this embodiment is provided with the carrying-in conveyor 61 and the carrying-out conveyor 62 arrange | positioned along the Y-axis direction. The carry-in conveyor 61 has a downstream end in the carrying direction (right direction in FIG. 17) corresponding to the take-in position A1, and the carry-out conveyor 62 has an upstream end at the sending position A2. It is arranged corresponding to.

  Further, a plurality of holding tables 7... On which the cylindrical bodies W can be placed at predetermined intervals (at a predetermined pitch) are attached to the conveyors 61 and 62.

  In this embodiment, the carry-in conveyor 61 does not include a mechanism for moving the holding table 7 up and down, as in the above embodiment, but the carry-out conveyor 62 moves the holding table 7 up and down individually. A cradle raising / lowering mechanism is provided.

  Here, in the present embodiment, the holding table 7 on the carry-in conveyor 61 side is configured as a loading-side placement tool, and the holding table 7 on the carry-out conveyor 62 side is configured as a loading-side loading tool.

  In this 4th Embodiment, since another structure is substantially the same as the said 1st-3rd embodiment, the same code | symbol is attached | subjected to the same or an equivalent part, and duplication description is abbreviate | omitted.

  Next, an inspection procedure by the surface inspection apparatus according to the third embodiment will be described.

  In an initial state, the uninspected cylindrical bodies W are placed on the holding table 7 of the carry-in conveyor 61, respectively. Further, the cylindrical body W is not placed on the reserve table 7 at the delivery position A2 in the carry-out conveyor 62, and the reserve table 7 is empty.

  In the rotary transfer mechanism 2, the chuck device 3 at the take-in position A1 has a pair of chuck portions 10 and 10 retracted, and a pair of insertion supports such as a guide member 40, a reference roller 20, and auxiliary rollers 30 and 30. The portions 12 and 12 are in the insertion support portion reduced-diameter state so that they can be inserted inside the inner diameter of the cylindrical body W. Further, the cylindrical bodies W are chucked on the chuck devices 3 at the inspection position B and the delivery position A2, respectively.

  In this state, the pair of chuck portions 10, 10 in the chuck device 3 at the take-in position A <b> 1 advances, and the pair of insertion support portions 12, 12 are inserted inside the side end portions of the cylindrical body W.

  Thereafter, the auxiliary rollers 30 and 30 of the pair of insertion support parts 12 and 12 move in a direction away from the reference roller 20 and shift to a diameter-expanded state. At this time, since the auxiliary rollers 30, 30 are in an upward posture of the auxiliary roller disposed above the reference roller 20, the inner peripheral surface of the cylindrical body W is pushed by the moving auxiliary rollers 30, 30; The cylindrical body W is lifted upward and is separated from the cradle 7. Thereafter, the reference roller 20 comes into contact with the inner peripheral surface of the cylindrical body W, and the inner peripheral surface of the cylindrical body W is supported by the reference roller 20 and the auxiliary rollers 20 and 20.

  The cylindrical body W at the inspection position B is subjected to surface inspection while rotating around the axis. At this time, as described above, the entire circumference is inspected using the one side end portion on the outer peripheral surface of the cylindrical body W as the inspection region.

  At the delivery position A2, the inspected cylindrical body W chucked by the chuck device 3 is transferred to the holding table 7. That is, at the delivery position A2, the cylindrical body W chucked by the chuck device 3 is disposed above the empty holding table 7. In this state, the auxiliary rollers 30 and 30 move in a direction (upward) close to the reference roller 20, and the chuck of the cylindrical body W is released. At this time, since the auxiliary rollers 30 and 30 are disposed below the reference roller 20, that is, they are not in an upward posture of the auxiliary roller, the cylindrical body W does not move even if the auxiliary rollers 30 and 30 move. Supported by the roller 20, the height position of the cylindrical body W does not change. Therefore, as shown by the broken line at the delivery position A2 in FIG. 17, even if the chuck is released, the cylindrical body W is still disposed above the cradle 7. And in this embodiment, after the chuck | zipper of the cylindrical body W is cancelled | released, when the stand 7 raises, the cylinder W is pushed up to the stand 7 a little. As a result, as shown by the solid line in the figure, the cylindrical body W is moved away from the reference roller 20 and transferred to the holding table 7.

  After the cylindrical body W is thus transferred from the chuck device 3 to the holding table 7, the pair of chuck portions 10, 10 retreats on both sides, and the pair of insertion support portions 12, 12 are at both ends of the cylindrical body W. Evacuate to the outside.

  In the fourth embodiment, the taking-in process at the taking-in position A1, the inspecting process at the inspecting position B, and the sending-out process at the sending position A2 (chuck release process) are performed in parallel.

  When all these processes are completed, the rotary frame 202 of the rotary transfer mechanism 2 rotates 1/4 (one pitch) clockwise in FIGS. Thus, the chuck devices 3... Arranged at the take-in position A1, the inspection position B, the delivery position A2, and the pre-take-in standby position C3 are respectively inspected position B, delivery position A2, pre-take-in standby position C3, and take-in position. It is rotated and transferred to A1.

  Here, when the cylindrical body W at the take-in position A1 rotates and moves to the inspection position B, the cylindrical body W is spaced upward from the stand 7 at the attachment position A1, so Interference is reliably prevented. Therefore, as in the first embodiment, in order to avoid interference with the cylindrical body W, there is no need for a cradle lifting mechanism that retracts the cradle 7 downward, and the number of parts can be reduced accordingly. Therefore, the structure can be simplified, the apparatus can be reduced in size, and the cost can be reduced.

  The cylindrical body W that has been rotationally moved from the inspection position B to the delivery position A2 is arranged above the holding table 7 at the delivery position A2. For this reason, it is possible to prevent the cylindrical body W from interfering with the holding table 7 during this rotational movement.

  On the other hand, in the fourth embodiment, the carry-in conveyor 61 and the carry-out conveyor 62 are each conveyed by one pitch in parallel with the rotation operation for one pitch in the rotary frame 202 of the rotary transfer mechanism 2. As a result, a new uninspected cylinder W is carried into the take-in position A1, and the inspected cylinder W sent to the delivery position A2 is carried out downstream.

  By repeating the above operation, the uninspected cylinder W is sequentially sent to the inspection position B by the carry-in conveyor 61 and the rotary transfer mechanism 2 to perform surface inspection, while the inspected cylinder W is These are sequentially carried out by the rotary transfer mechanism 2 and the carry-out conveyor 62.

  As mentioned above, also in the surface inspection apparatus of this 4th Embodiment, the same effect can be acquired similarly to the surface inspection apparatus of the said 1st-3rd embodiment.

  Further, since the surface inspection apparatus performs the capture process at the capture position A1 and the transport process at the transport position A2 in the same manner as in the second and third embodiments, the inspection efficiency is improved. Can be further improved.

  In the fourth embodiment as well, the rotation of the cylindrical body W can be stabilized before being transferred to the inspection position B. For example, by rotating the cylindrical body W immediately after the cylindrical body W is chucked at the take-in position A1, when the cylindrical body W is transferred to the inspection position B, the rotation of the cylindrical body W is stabilized. be able to. Therefore, as in the first to third embodiments, after being transferred to the inspection position B, the surface inspection can be performed immediately without performing the preliminary operation, and the inspection efficiency can be improved.

  Further, in the present embodiment as well, in the same manner as in the first to third embodiments, between the take-in position A and the inspection position B, air is blown onto the outer surface of the cylindrical body W to clean the surface. You can also.

<Configuration of Conveyor Conveyable in the Present Invention>
In the present invention, a conveyor having the following configuration can be employed so that a plurality of types of cylindrical bodies W having different sizes can be inspected. For example, the conveyor 6 shown in FIG. 18 is configured so that a large-size reserve table 71, a medium-size reserve table 72, and a small-size reserve table 73 are sequentially repeated along the transfer direction along the transfer direction on the transfer surface. Is attached.

  Each of the holding bases 71 to 73 is configured such that the height positions of the axial centers of the cylindrical bodies W coincide with each other when the corresponding cylindrical bodies W are mounted. Accordingly, by placing the cylindrical body W on the holding bases 71 to 73 corresponding to the size, the height position of the shaft center does not change regardless of the size of the cylindrical body W. In the take-in positions A and A1 of the rotary transfer mechanism 2 of the inspection apparatus in the embodiment, the pair of insertion support portions 12 and 12 can be accurately inserted and reliably chucked. Thereby, all the multiple types of cylindrical bodies W having different sizes can be inspected.

  FIG. 19 is a front sectional view showing another embodiment of the conveyor 6, and FIG. 20 is an inner side view of FIG. 19, which corresponds to a sectional view taken along the line ZZ of FIG. 19.

  As shown in these drawings, the conveyor 6 is provided with a plurality of multi-support type holding stands 7 along the conveying direction.

  The pair of V receiving plates 75, 75 of the holding table 7 are arranged outside, a large size V receiving plate 751 arranged inside, a medium size V receiving plate 752 arranged in the middle, and the outside. And a small size V receiving plate 753. The pair of V receiving plates 75 and 75 is configured to be slidable in a direction in which the pair of V receiving plates 75 and 75 are separated from each other, and the dimension (width dimension) between the pair of V receiving plates 75 and 75 can be changed.

  When the large-sized cylindrical body W is placed, the width dimensions of the pair of V-receiving plates 75 and 75 are set so that the large-sized V-receiving plates 751 and 751 are positioned at both ends of the cylindrical body W. After adjusting, the cylindrical body W is placed on the stand 7 so that both end portions of the cylindrical body W are supported by the large size V receiving plates 751 and 751.

  Similarly, when the medium-sized cylindrical body W is placed, the width dimensions of the pair of V receiving plates 75 and 75 are adjusted, and both end portions of the cylindrical body W are fixed by the medium-sized V receiving plates 752 and 752. The cylindrical body W is placed so as to be supported. Further, when placing a small-sized cylindrical body W, the width dimensions of the pair of V receiving plates 75 and 75 are adjusted, and both ends of the cylindrical body W are supported by the small-sized V receiving plates 753 and 753. The cylindrical body W is placed so that

  Thereby, when the cylindrical bodies W of different sizes are placed, the axial center heights of the cylindrical bodies W coincide with each other. Therefore, the cylindrical body W of any size can be stably transported and reliably inspected as described above.

<Modification>
In the above embodiment, the case where the present invention is applied to an inspection apparatus that detects the surface state of a cylindrical body has been described as an example. However, the present invention is not limited thereto, and the present invention is not limited to the displacement of the outer peripheral surface during rotation of the cylindrical body. The present invention can also be applied to an inspection apparatus that performs shape inspection such as quantity (freight).

  For example, when performing shape inspection, a contact-type displacement detector that detects the amount of displacement by bringing a contactor into contact with the outer peripheral surface of the cylindrical body, or transmitted light such as laser light emitted from the side of the cylindrical body What is necessary is just to use the non-contact-type displacement detector etc. which detect the amount of displacement based on the presence or absence of this.

  Furthermore, the present invention can also be applied to an inspection apparatus that can perform both surface inspection and shape inspection of a cylindrical body.

  Further, in the above embodiment, when 3 to 5 chuck means are provided in the rotary transfer mechanism (transfer means), a case where a so-called regular triangle type, regular square type or regular pentagon type rotary transfer mechanism is used is described as an example. However, the present invention is not limited to this, and in the present invention, the transfer means may be provided with one or two chuck means, or the transfer means may be provided with six or more chuck devices.

  For example, when a regular hexagonal transfer means is adopted, that is, when six chuck means are provided in the transfer means, six chuck means are provided at equal intervals in the circumferential direction on the annular transfer path. The upper end position on the transfer path is the inspection position, the position 1/6 turn from the inspection position toward the downstream side in the transfer direction is the standby position before sending, and the position 2/6 turn from the inspection position is the sending position. The position 3/6 round from the position is taken as the standby position before loading, the position 4/6 rounds from the inspection position is taken as the loading position, and the position 5/6 rounds from the testing position is preferably taken as the standby position before testing. . Thereby, similarly to the said 2nd and 3rd embodiment, a cylindrical body can be conveyed smoothly smoothly, and it becomes possible to test | inspect efficiently.

  Moreover, in the said embodiment, although the two auxiliary rollers 30 and 30 are provided in each chuck | zipper part 10 in the chuck apparatus 3, the number of installation of the auxiliary roller 30 is not specifically limited in this invention. For example, as shown in FIG. 21, one auxiliary roller 20 may be provided for each chuck portion 10.

  Moreover, in the said embodiment, although comprised so that the auxiliary | assistant rollers 30 and 30 of each chuck | zipper part 10 in the chuck | zipper apparatus 3 may be moved along the substantially radial direction of the cylindrical body W, this invention is limited only to it. is not. For example, as shown in FIG. 22, when the two auxiliary rollers 30, 30 are moved toward and away from the reference roller 20, the two auxiliary rollers 30, 30 are parallel as shown in the solid line state and the broken line state in FIG. You may make it move to.

  In the above embodiment, the entire area of the auxiliary roller 30 overlaps behind the reference roller 20 in the reduced diameter state of the insertion support portion. However, the present invention is not limited to this, and in the present invention, in the reduced diameter state of the insertion support portion. Alternatively, only a part of the auxiliary roller 30 may overlap the reference roller 20, or the auxiliary roller 30 may not overlap the reference roller 20 at all.

  The cylindrical body inspection apparatus of the present invention can be applied to an apparatus for inspecting the surface state, appearance shape, and the like of a cylindrical body.

2: Rotation transfer mechanism (transfer means)
3: Chuck device (chuck means)
6: Conveyor 7: Holding table (mounting tool)
12: Insertion support 20: Reference roller (main roller)
30: Auxiliary roller (sub roller)
61: Carry-in conveyor (carry-in means)
62: Unloading conveyor (unloading means)
202: Rotating frame A: Capture / delivery position A1: Capture position A2: Delivery position B: Inspection position (transfer position)
C1: Standby position before inspection (transfer position)
C2: standby position before delivery P: annular transfer path W: cylindrical body

Claims (19)

A cylindrical body inspection apparatus for inspecting a cylindrical body at an inspection position,
A loading unit for loading the cylindrical body substantially horizontally; a loading means for loading the cylindrical body on the loading tool to the cylindrical body taking-in position;
Chuck means for chucking the cylindrical body disposed at the cylindrical body taking-in position so as to be rotatable around an axis;
A transfer means for transferring the chuck means from the cylindrical body take-in position to the inspection position;
The chuck means includes a main roller and a sub-roller that can move in a direction in contact with and away from the main roller, and includes a pair of insertion support portions provided corresponding to both sides of the cylindrical body,
The chuck means chucks the cylindrical body on the loading-side mounting tool at the cylindrical body taking-in position.
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to come into contact with the upper inner peripheral surface of the cylindrical body to lift the cylindrical body from the loading-side mounting tool by the sub roller, and the main roller is moved below the inner peripheral surface of the cylindrical body. An inspection apparatus for a cylindrical body characterized in that it is brought into contact with the side. The pair of insertion support portions can be shifted between the sub-roller upward posture and the main-roller upward posture in which the main roller is disposed above the sub-roller,
The pair of insertion support portions that chuck the cylindrical body shift to an upward posture of the main roller, and inspect the portion corresponding to the main roller of the cylindrical body as an inspection target region at the inspection position. The cylindrical body inspection apparatus according to 1. The transfer means comprises a rotating frame that is rotatable about an axis in the same direction as the axis of the cylindrical body,
The chuck means is attached to the rotating frame, and the chuck means is configured to be movable along an annular transfer path by the rotation of the rotating frame.
When the chuck means is disposed on the lower side of the annular transfer path, the pair of insertion support portions are in the upward posture of the sub-roller, and are disposed in the upward posture of the main roller when disposed on the upper side. Configured,
The cylindrical body take-in position is provided on the lower side on the annular transfer path, and the inspection position is provided on the upper side,
The cylindrical body inspection apparatus according to claim 2, wherein the chuck means that chucks the cylindrical body at the cylindrical body take-in position moves along the annular transfer path and is transferred to the inspection position. . The inspection position is provided at the upper end of the annular transfer path,
The cylindrical body take-in position is provided within a range of ¼ circumference from the lower end of the annular transfer path toward the downstream side in the transfer direction,
A cylindrical body delivery position is provided within a range of 1/4 turn from the lower end of the annular transfer path toward the upstream side in the transfer direction,
An unloading means for unloading the cylindrical body placed on the unloading-side placement tool at the cylindrical body delivery position is provided, the unloading-side placement tool for placing the cylindrical body substantially horizontally;
The chuck means that chucks the cylindrical body is configured to be transferred from the inspection position to the cylindrical body delivery position along the annular transfer path, and
When the sub roller of the pair of insertion support portions in the chuck means moves downward so as to be close to the main roller at the cylindrical body delivery position, the chuck is released and the lower side of the sub roller is moved downward. The cylindrical body inspection apparatus according to claim 3, wherein the cylindrical body is lowered and transferred to the carry-out side mounting tool with the movement of the cylindrical body. A plurality of the chuck means are attached to the rotating frame at equal intervals in the circumferential direction,
The cylindrical body inspection apparatus according to claim 4, wherein the chuck means can be present at the cylindrical body take-in position, the inspection position, and the cylindrical body delivery position simultaneously. The carrying-in means is constituted by a carry-in conveyor provided with a large number of the loading-side placement tools arranged along the conveying direction,
The carry-out means is constituted by a carry-out conveyor provided with a large number of the loading-side placement tools arranged along the conveyance direction,
The cylindrical body on the loading-side mounting tool is sequentially loaded into the cylindrical body taking-in position by the loading conveyor, and the cylindrical body on the loading-side loading tool is moved to the cylindrical body sending position by the unloading conveyor. The cylindrical body inspection apparatus according to claim 5, wherein the cylindrical body inspection apparatus is sequentially carried out from the cylindrical body.   The cylindrical body inspection apparatus according to claim 6, wherein the carry-in side placement tool and the carry-out side placement tool are set at the same height position. The carry-in conveyor and the carry-out conveyor are configured by a single conveyor.
The cylindrical inspection apparatus according to claim 7, wherein the carry-in placement tool and the carry-out placement tool have the same configuration. Five chuck means are attached to the rotating frame at equal intervals in the circumferential direction,
A pre-inspection standby position is provided between the cylindrical body take-in position and the inspection position on the annular transfer path, and a pre-delivery standby position is provided between the inspection position and the cylindrical body delivery position. ,
The chuck means can be arranged simultaneously at each of the cylindrical body take-in position, the pre-inspection standby position, the inspection position, the pre-delivery standby position, and the cylindrical body delivery position,
6. The chuck means at each position is transferred to the next position by rotating the rotary frame by 1/5 with the chuck means disposed at each position. The inspection apparatus of the cylindrical body of any one of -8. Three chuck means are attached to the rotating frame at equal intervals in the circumferential direction,
The chuck means can be arranged at the same time at each position of the cylindrical body take-in position, the inspection position and the cylindrical body delivery position,
6. The chuck means at each position is transferred to the next position by rotating the rotary frame by 1/3 with the chuck means disposed at each position. The inspection apparatus of the cylindrical body of any one of -8.   The cylinder according to any one of claims 1 to 10, wherein rotation of the cylindrical body chucked by the chuck means is started before the cylindrical body is transferred from the cylindrical body taking-in position to the inspection position. Body inspection device.   The cylindrical body inspection apparatus according to claim 1, wherein air is blown to an outer peripheral surface of the cylindrical body before the cylindrical body is transferred from the cylindrical body taking-in position to the inspection position. Each of the pair of insertion support portions includes two sub rollers.
The cylindrical body inspection apparatus according to any one of claims 1 to 12, wherein inner peripheral surfaces of both ends of the cylindrical body are supported at three points by one main roller and two sub rollers, respectively. .   The structure according to claim 13, wherein the two sub rollers provided in each insertion support portion are configured to move in a direction in which the two sub rollers move toward and away from the main roller by moving along a substantially radial direction of a cylindrical body to be chucked. Cylindrical inspection apparatus as described. A cylindrical body transfer device configured to transfer a cylindrical body disposed substantially horizontally on the mounting tool to the transfer position at the cylindrical body taking-in position,
Chuck means for chucking the cylindrical body disposed at the cylindrical body taking-in position so as to be rotatable around an axis;
A transfer means for transferring the chuck means from the cylindrical body take-in position to the inspection position;
The chuck means includes a main roller and a sub-roller that can move in a direction in contact with and away from the main roller, and includes a pair of insertion support portions provided corresponding to both sides of the cylindrical body,
When the chuck means chucks the cylindrical body on the fixture described above at the cylindrical body taking-in position,
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to contact the upper side of the inner peripheral surface of the cylindrical body, and the cylindrical body is lifted from the mounting tool by the sub roller, and the main roller is moved to the lower side of the inner peripheral surface of the cylindrical body. A cylindrical body transfer device characterized by being brought into contact with each other. A cylindrical chuck device that chucks a cylindrical body disposed substantially horizontally on a mounting tool at a cylindrical body taking-in position so as to be rotatable about an axis,
Each having a main roller and a sub-roller movable in a direction contacting and separating from the main roller, and including a pair of insertion support portions provided corresponding to both side portions of the cylindrical body,
When chucking the cylindrical body on the mounting device at the cylindrical body taking-in position,
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to contact the upper side of the inner peripheral surface of the cylindrical body, and the cylindrical body is lifted from the mounting tool by the sub roller, and the main roller is moved to the lower side of the inner peripheral surface of the cylindrical body. A cylindrical chuck device characterized by being brought into contact with each other. An inspection method for a cylindrical body in which the cylindrical body is inspected at an inspection position,
A loading unit for loading the cylindrical body substantially horizontally; a loading means for loading the cylindrical body on the loading tool to the cylindrical body taking-in position;
Chuck means for chucking the cylindrical body disposed at the cylindrical body taking-in position so as to be rotatable around an axis;
A transfer means for transferring the chuck means from the cylindrical body take-in position to the inspection position, respectively,
The chuck means includes a main roller and a sub-roller that can move in the direction of contact with and away from the main roller, and a pair of insertion support portions provided corresponding to both side portions of the cylindrical body. Be prepared,
When chucking the cylindrical body on the loading-side mounting tool at the cylindrical body taking-in position by the chuck means,
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to come into contact with the upper inner peripheral surface of the cylindrical body to lift the cylindrical body from the loading-side mounting tool by the sub roller, and the main roller is moved below the inner peripheral surface of the cylindrical body. An inspection method for a cylindrical body, characterized in that the cylindrical body is brought into contact with the side. A cylindrical body transfer method in which a cylindrical body disposed substantially horizontally on a mounting tool at a cylindrical body take-in position is transferred to a transfer position,
Chuck means for chucking the cylindrical body disposed at the cylindrical body taking-in position so as to be rotatable around an axis;
A transfer means for transferring the chuck means from the cylindrical body take-in position to the inspection position, respectively,
The chuck means includes a main roller and a sub-roller that can move in a direction in contact with and away from the main roller, and includes a pair of insertion support portions provided corresponding to both side portions of the cylindrical body. Be prepared,
When chucking the cylindrical body on the mounting device by the chuck means at the cylindrical body taking-in position,
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to contact the upper side of the inner peripheral surface of the cylindrical body, and the cylindrical body is lifted from the mounting tool by the sub roller, and the main roller is moved to the lower side of the inner peripheral surface of the cylindrical body. A method for transferring a cylindrical body, wherein the cylindrical body is brought into contact. A cylindrical chucking method for chucking a cylindrical body disposed substantially horizontally on a mounting tool at a cylindrical body taking-in position so as to be rotatable about an axis,
A pair of insertion support portions each having a main roller and a sub-roller movable in a direction contacting and separating from the main roller and provided corresponding to both side portions of the cylindrical body;
When chucking the cylindrical body on the mounting device at the cylindrical body taking-in position,
The pair of insertion support portions are in a reduced diameter state of the insertion support portion moved in a direction in which the sub roller moves closer to the main roller, and the sub roller is positioned upward with respect to the main roller. Insert inside both sides,
In the inserted state, the sub roller is moved upward to contact the upper side of the inner peripheral surface of the cylindrical body, and the cylindrical body is lifted from the mounting tool by the sub roller, and the main roller is moved to the lower side of the inner peripheral surface of the cylindrical body. A method for chucking a cylindrical body, wherein the cylindrical body is brought into contact.

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