JP3754871B2 - Workpiece supply device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for supplying a workpiece such as a gravure printing cylinder to a processing machine such as a cylindrical mirror grinder or a buffing machine.
[Prior art]
Conventionally, as this kind of workpiece supply device, the one shown in FIG. 8 disclosed in the registered utility model No. 3019247 is known. The workpiece supply device 71 disclosed in this publication includes a device base 72 guided by rails 56, 56 provided horizontally on the front surface of the bed of the processing machine, and a pivot shaft 73 with respect to the device base 72. A tilting table 55 that can swing up and down is pivotally supported. On the tilting table 55, a receiving member 60 for placing the workpiece P is provided with the material longitudinal direction along the front surface of the bed. The receiving member 60 has a side plate 61 erected at the tip thereof. When the side plate 61 is landed on the floor GL by a driving device (not shown), that is, the tilting table 55 is located along the position where the receiving member 60 is inclined along the oblique line N and the substantially horizontal target arrangement line C. It is designed to swing up and down between positions.
In the workpiece supply device 71, the workpiece P is laid on the inclined receiving member 60 with the side plate 61 landed, and then the receiving member 60 is substantially horizontal, and then tailstock of the processing machine (FIG. 1 and the like). The workpiece P is delivered to the reference numerals 40 and 41).
[0003]
[Problems to be solved by the invention]
In the above-described conventional workpiece supply device 71, the workpiece P is received at the bottom surface of the receiving member 60. Therefore, when the diameter of the workpiece P to be supplied changes, the workpiece when leveled The cylinder center height of the object P is shifted up and down from the target arrangement line C of the tailstock. In that case, it is necessary to raise and lower the receiving member 60 in a horizontal posture with an elevator device (not shown) so that the cylinder center height of the workpiece P matches the target arrangement line C. Such work requires great care and is troublesome.
[0004]
On the other hand, unless the receiving member 60 is inclined and landed, the workpiece P cannot be received on the bottom surface of the receiving member 60. When the receiving member 60 is inclined as described above, the tip of the side plate 61 is lifted. For this reason, the workpiece P must be lifted and placed on the receiving member 60 by a height h exceeding the tip of the side plate 61. By the way, when loading / unloading several dozens of workpieces P per day with the workpieces P of several tens to hundreds of kg, the loading / unloading work becomes severe, and in the worst case Will cause back pain to the staff.
As described above, in order to lack safety considerations or troublesome operations, it is the actual situation that the workpiece supply device 71 is not used even though it is a bent corner.
[0005]
The present invention has been made in view of the above-described conventional problems, and is a practical substrate that can quickly and safely supply a workpiece without requiring much labor. An object is to provide a workpiece supply apparatus.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a workpiece supply apparatus according to the present invention includes an apparatus base disposed on the front surface of a bed of a processing machine such as a grinding machine, and a pivotally supported on the apparatus base so as to be swingable up and down. In addition, a tilting table provided so as to swing up and down by an appropriate first driving device, a fixed-side support rod provided on the tilting table so that the longitudinal direction of the rod is along the front surface of the bed, and the fixed-side support A flat plate-like one-end support member provided to support one end of the work piece at the tip of the rod, a movable-side support rod provided to extend along the front surface of the bed with respect to the fixed-side support rod, and the movable side The other end support member provided to support the other end of the workpiece at the tip of the support rod, and the other end support member by biasing the movable side support rod toward the fixed side support rod. And a second driving device provided so as to be sandwiched between one end support members, and the tilting table Undulating rocking between a position when the one end supporting member is made substantially horizontal and a predetermined position where the workpiece sandwiched between the one end supporting member and the other end supporting member can be supplied to the processing machine. It is configured.
[0007]
Further, the lock mechanism is interposed between the fixed side support rod and the movable side support rod in the above-described configuration, and the movable side support rod is detachably engaged with the fixed side support rod and locked at the position. It is equipped with.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing a workpiece supply apparatus according to an embodiment of the present invention, and FIG. 2 is a view taken along line AA in FIG.
In each figure, the workpiece supply apparatus 1 according to this embodiment is provided in front of a bed B of a processing machine G represented by, for example, a cylindrical mirror surface grinding machine. In addition, the workpiece supply device 1 includes a rectangular box-shaped device base 2 that is guided to the left and right by rails 6 and 6 that are horizontally provided on the front surface F of the bed B. The apparatus base 2 has sliders 7, 7 provided on the back surface, which are slidable on the rails 6, 6 and run in the left-right direction.
[0009]
A bearing arm 8 fixed to the upper surface of the apparatus base 2 and a bearing arm 9 fixed to the lower surface of the tilting table 5 are pivotally supported via the pivot shaft 3 so that the tilting table is supported. 5 can swing up and down with respect to the apparatus base 2. On the other hand, an air cylinder 11 constituting the first drive device 4 is pivotally supported by a bearing arm 10 fixed on the lower surface of the device base 2 via a pivot shaft 13 so as to be vertically swingable. The drive shaft 12 of the air cylinder 11 is connected to the tilting table 5 via a pivot shaft 14 and a connecting arm 15. The first driving device 4 is driven by a lever 16 provided on the front surface of the device base 2.
In addition, a slide base 18 that is slidable back and forth is provided on the top surface of the tilting table 5, and a slide base 19 is provided on the top surface of the slide base 18 so as to be slidable back and forth. A fixed side support rod 26 is fixed to the slide table 19. The fixed side support rod 26 is arranged so that the longitudinal direction of the rod is along the front surface F of the bed B.
[0010]
A flat plate-like one end support member 20 for supporting one end of the workpiece P is erected substantially vertically with respect to the fixed side support rod 26 at the tip of the fixed side support rod 26. Further, a movable side support rod 27 is provided along the front surface F of the bed B on the fixed side support rod 26. The other end support member 23 for supporting the other end of the workpiece P is also erected at the tip of the movable side support rod 27.
On the inner side surfaces of the one end support member 20 and the other end support member 23, in order to hold the workpiece P in an appropriate position, a large number of concentric lines 21 are drawn, on which, for example, transparent urethane A rubber rubber plate 22 is attached. A center opening 24 for inserting the tail stock 40, 41 on the processing machine G side is formed in the one end support member 20 and the other end support member 23. Further, two pairs of receiving rollers 25, 25, 25, 25 for receiving the workpiece P are provided on the lower portions of the inner side surfaces of the one end supporting member 20 and the other end supporting member 23.
[0011]
As shown in FIGS. 3 to 5, sliders 29 and 30 provided on the front side surface of the movable side support rod 27 are slidable on the rail 28 provided on the back side surface of the fixed side support rod 26. It is installed. Thereby, the movable side support rod 27 is extendable in the left-right direction with respect to the fixed side support rod 26. A rack 46 is laid on the upper surface of the fixed-side support rod 26 along the longitudinal direction of the rod. A lock mechanism 31 is interposed between the fixed support rod 26 and the movable support rod 27 at a position above the rack 46.
The lock mechanism 31 is pivoted on the side wall in the gear shaft support box 53 and the gear shaft support box 53 housed in the casing 36 in the same gate shape as viewed from the side of the device. A pinion gear 43 that is fixed to a freely supported shaft 37 and meshes with the rack 46, and is also rotatably supported on both side walls via shafts 44 in front of the pinion gear 43 in the gear shaft support box 53. The lock gear 45 mainly meshes with the pinion gear 43.
[0012]
The gear support box 53 is supported by the casing 36 through the shaft 37 so as to be swingable up and down. An operation lever 39 inserted through the long hole 51 on the upper surface of the casing 36 is attached to the gear shaft support box 53. The gear shaft support box 53 can be swung by manually operating the operation lever 39 from the outside. The rocking gear 45 is engaged with or separated from the rack 46 by the swinging of the gear shaft support box 53.
A handle 38 for turning by hand is attached to one end of the shaft 37. By rotating the handle 38 manually to rotate the pinion gear 43, the casing 36 and the gear shaft support box 53 are moved on the rack 46.
[0013]
On the other hand, on the upper surface of the movable support rod 27 on the back side of the casing 36, a fixed plate portion 50, which is the base portion of the hook-shaped lock key 49, is fixed. The upper end of the lock key 49 is inserted into a side hole 42 formed in the back surface of the casing 36 and faces the casing 36. The lock key 49 is engaged with or disengaged from the upward protrusion 47 formed on the upper surface of the gear shaft support box 53 by the relative movement of the casing 36 and the movable side support rod 27, so that the gear shaft support is supported. The box 53 is locked or swingable. That is, the secondary lock mechanism 32 is configured by the lock key 49 and the protrusion 47 described above. The secondary lock mechanism 32 fixes the double-lock by fixing the gear shaft support box 53 in accordance with the operation of urging the movable support rod 27 toward the fixed support rod 26 by the driving of the second driving device 52. To do. Reference numeral 48 denotes a coil spring interposed between the casing 36 and the gear shaft support box 53, and always biases the gear shaft support box 53 toward the rack 46.
[0014]
On the right side surface of the casing 36 (on the left side in the drawings in FIGS. 1, 3 and 4), for example, a second driving device 52 including an air cylinder 33 and its driving shaft 34 is provided. The drive shaft 34 is connected to the movable side support rod 27 via a connecting arm 35. The drive shaft 34 moves back and forth in the left-right direction by driving the air cylinder 33, and moves the casing 36 and the gear shaft support box 53 relative to the movable support rod 27. The second driving device 52 described above is driven by a lever 17 provided on the front surface of the device base 2.
[0015]
The operation of the workpiece supply apparatus 1 configured as described above will be described mainly using FIGS. 6 and 7 and also using FIGS. Here, for example, a cylindrical mirror surface grinding machine is illustrated as the processing machine G, and a relatively heavy gravure printing cylinder roll is illustrated as the workpiece P.
First, the lever 16 is operated to activate the first drive unit 4, and the tilting base 5 is swung around the pivot shaft 3 so that the fixed side support rod 26 and the movable side support rod 27 are made vertical (FIG. 6). (See solid line and two-dot chain line in FIG. 1). At this time, the one-end support member 20 is landed on the floor surface GL in a substantially horizontal posture. Next, one end of the workpiece P is placed on the one end support member 20 with the target line 21 of the concentric circle of the one end support member 20 as a target.
[0016]
In that case, since the one end support member 20 is substantially horizontal, the workpiece P can be easily placed on the one end support member 20 without lifting the workpiece P high. Then, the workpiece P is raised to be parallel to the fixed side support rod 26 and the movable side support rod 27 so that the center (roll core) of the workpiece P overlaps the vertical line V.
[0017]
Subsequently, the operation lever 39 is lifted by hand to swing the gear shaft support box 53 to release the lock gear 45 from the rack 46. Then, the lock state of the lock mechanism 31 is released, and the casing 36 and the gear shaft support box 53 can freely move on the rack 46. In this state, the pinion gear 43 can be freely advanced on the rack 46 by turning the handle 38 by hand or pushing the casing 36 by hand. In this case, the casing 36 and the gear shaft support box 53 are moved downward. In this way, the multi-end support member 23 is moved to a position in contact with or close to the other end of the workpiece P. Thereafter, when the hand is released from the operation lever 39, the gear shaft support box 53 is pressed by the coil spring 48, and the lock gear 45 engaged with the pinion gear 43 is further engaged with the rack 46. As a result, the casing 36 and the gear shaft support box 53 are fixedly locked to the fixed-side support rod 26 at that position. That is, the lock mechanism 31 engages the movable side support rod 27 with the fixed side support rod 26 so that the movable side support rod 27 can be engaged and disengaged, and locks at the position. Thereby, it is not necessary to measure the roll length of the workpiece P in advance and set the workpiece P in the workpiece supply apparatus 1, and the workpiece P can be supplied quickly.
[0018]
Next, the second driving device 52 is activated by operating the lever 17 by hand. Then, the drive shaft 34 advances from the air cylinder 33 and urges the movable side support rod 27 toward the fixed side support rod 26. Thereby, the workpiece P is clamped between the other end support member 23 and the one end support member 20 with an appropriate elastic force. With the movement of the movable support rod 27 at this time, the lock key 49 moves in the side hole 42 of the casing 36, reaches the upper portion of the protrusion 47, and presses the gear support box 53. Therefore, even if the operation lever 39 is erroneously operated at that time, the gear shaft support box 53 does not swing, so that the lock gear 45 is not separated from the rack 46 and the locked state is reliably maintained.
[0019]
Thereafter, the lever 16 is operated again to start the first driving device 4, whereby the fixed side support rod 26 and the movable side support rod 27 are swung about 90 degrees to make the workpiece P substantially horizontal. At this time, the center height of the workpiece P coincides with the predetermined supply height in the processing machine G.
In this state, the slide bases 18 and 19 are pushed by hand or the like, and the fixed side support rod 26 and the movable side support rod 27 are advanced to the back side (in the direction of arrow R in FIG. 7). Among them, the center of the workpiece P coincides with a target arrangement line C (see FIGS. 2, 6 and 7) which is a predetermined supply position in the processing machine G. Therefore, it is not necessary to set the workpiece P according to the diameter of the workpiece P in advance.
At that position, the tail stocks 40, 41 of the processing machine G are inserted through the center openings 24, 24 of the one end support member 20 and the other end support member 23, and the tail stock 40, 41 holds both ends of the workpiece P. . In this case, positioning in the left-right direction (in the directions of arrows S and S in FIG. 7) is performed by causing the apparatus base 2 to travel along the rail 6 on the processing machine G side.
[0020]
Subsequently, the driving of the second drive device 52 is stopped, and the elastic gripping of the workpiece P by the other end support member 23 and the one end support member 20 is released. Then, since the drive shaft 34 is retracted into the air cylinder 33, the lock key 49 is retracted from above the protrusion 47, and the secondary lock of the gear shaft support box 53 is released. In this way, the workpiece P is delivered to the tailstocks 40 and 41 and used for grinding. Even if the delivery P fails and the workpiece P falls, it is received by the lower receiving rollers 25, 25, 25, 25, so that safety is not impaired.
Thereafter, the slide bases 18 and 19 are moved to temporarily retract the other end support member 23 and the one end support member 20 to an appropriate position that does not hinder the processing of the processing machine G.
[0021]
Then, after the grinding of the workpiece P is completed, the other end support member 23 and the one end support member 20 are moved again to a predetermined supply position, and the second driving device 52 is activated. Accordingly, the workpiece P is elastically gripped by the other end support member 23 and the one end support member 20 and received from the tailstocks 40 and 41. Thereafter, the workpiece supply device 1 is operated in the reverse order to the above-described supply operation, and the one end support member 20 is landed on the floor surface GL. Then, the processed workpiece P is lowered from the one-end support member 20 to the floor surface GL, and the next workpiece P is placed on the one-end support member 20 and supplied to the processing machine G.
[0022]
As described above, in the workpiece supply apparatus 1 according to this embodiment, the fixed side support rod 26 and the movable side support rod 27 tilt substantially vertically, and the flat plate-like one end support member 20 becomes substantially horizontal and the floor surface. Since it lands on the GL or the like, the workpiece P can be easily placed on the one-end support member 20.
In addition, after the operation lever 39 is operated and the other end support member 23 is placed on the other end side of the workpiece P, the fixed side support rod 26 and the movable side support rod 27 can be moved only by releasing the operation lever 39. The interval can be automatically locked.
[0023]
In the above embodiment, an air-type drive device is exemplified as the first drive device and the second drive device. However, the present invention is not limited thereto, and instead of the air-type, for example, a hydraulic cylinder or an electric motor. A driving device such as may be used.
[0024]
【The invention's effect】
As described above in detail, according to the workpiece supply device of the present invention, the fixed-side support rod and the movable-side support rod tilt substantially vertically, and the flat plate-like one end support member becomes substantially horizontal and lands. Therefore, the workpiece can be easily placed on or lowered from the one-end support member. Therefore, the work to supply the workpiece to the processing machine can be performed quickly and safely without requiring a great deal of labor.
[0025]
In addition, when a lock mechanism is interposed between the fixed side support rod and the movable side support rod, the other end support member is moved to or near the other end of the workpiece whose one end is supported by the one end support member. After that, by operating the lock mechanism, the movable side support rod can be engaged with the fixed side support rod at the position and locked. Therefore, it is not necessary to measure the length of the workpiece in advance, and the workpiece can be supplied easily.
[Brief description of the drawings]
FIG. 1 is a front view showing a workpiece supply apparatus according to an embodiment of the present invention.
2 is a view taken along line AA in FIG.
FIG. 3 is a partial plan view showing a main part of the workpiece supply apparatus.
FIG. 4 is a partial side view showing a main part of the workpiece supply apparatus.
5 is a view taken along line BB in FIG.
FIG. 6 is an explanatory diagram viewed from the front of an aspect in which the workpiece is placed on the workpiece supply apparatus.
FIG. 7 is an explanatory view in a plan view of an aspect in which a workpiece is supplied to the processing machine by the workpiece supply device.
FIG. 8 is a front view showing a conventional workpiece supply apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Workpiece supply apparatus 2 Device base 3 Pivot shaft 4 First drive device 5 Tilt table 11 Air cylinder 12 Drive shaft 20 One end support member 23 Other end support member 26 Fixed side support rod 27 Movable side support rod 31 Lock mechanism 33 Air cylinder 34 Drive shaft 52 Second drive device B Bed C Target arrangement line F Front surface G Processing machine GL Floor surface P Workpiece

Claims (2)

An apparatus base disposed on the front surface of a bed of a processing machine such as a grinding machine, and a tilting base that is pivotally supported on the apparatus base so as to be swingable up and down and is rocked up and down by an appropriate first driving device. A fixed-side support rod provided on the tilting base so that the longitudinal direction of the rod is along the front surface of the bed, and a flat plate-like end provided to support one end of the workpiece on the tip of the fixed-side support rod A support member, a movable side support rod provided to extend along the front surface of the bed with respect to the fixed side support rod, and the other end provided to support the other end of the workpiece on the tip of the movable side support rod A support member, and a second drive device provided to urge the movable support rod toward the fixed support rod to clamp the workpiece between the other end support member and the one end support member, The tilting table has a position when one end supporting member is substantially horizontal and landed, and one end Feeder of the workpiece, characterized in that the configuration of undulating swing between a predetermined position can be supplied to the workpiece a machine that is sandwiched between the member and the other end bearing member Seung. A locking mechanism is provided between the fixed-side support rod and the movable-side support rod, and includes a lock mechanism that detachably engages the movable-side support rod with the fixed-side support rod and locks at the position. 2. A workpiece supply apparatus according to 1.

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