JP3688840B2 - Machining line equipment for round workpieces - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a line device for processing a workpiece having a round cross section, and can be used for, for example, drilling a hollow shaft having a different diameter.
[0002]
[Background]
A hollow shaft is used at the center of the winding part of the building shutter. In order to manufacture this hollow shaft, a long hollow shaft, which is a workpiece, is cut into a length corresponding to the size of the shutter for building, and insertion holes and windings of hollow shaft mounting bolts are wound at various positions in the length direction. Holes such as mounting holes for the return spring must be formed. In order to produce a hollow shaft having such holes, for example, a plurality of V-grooved rolls are arranged in the hollow shaft feed direction to form a work feed line, and a drilling device provided with a drill on the side of the work feed line Can be arranged so as to be able to advance and retreat with respect to the hollow shaft, and the hollow shaft can be perforated with this perforating device.
[0003]
[Problems to be solved by the invention]
However, there are various hollow shafts with different diameters according to the size of various building shutters to be produced. In order to enable multiple types of production on the same line, these hollow shafts are the same. It is necessary to feed on the work feed line. In this way, when various hollow shafts with different diameters are sent to the location of the drilling device on the same work feed line, the center height position of the hollow shaft depends on the size of the diameter, In order to prevent all hollow shafts from being drilled by a drilling device with a constant drilling height position, and to enable multi-type production on the same line, such problems can be solved. Desired.
[0004]
The object of the present invention is to process various workpieces such as hollow shafts with different diameters by the same workpiece feed line, with the same center height position of these workpieces by a machining device such as a drilling device. The object of the present invention is to provide a machining line device for round cross-section workpieces that can be made and can carry out multi-type production.
[0005]
[Means for Solving the Problems]
The processing line device for round cross-section workpieces according to the present invention has a processing device that is capable of moving forward and backward toward the workpiece and that processes the workpiece on the side of the workpiece feed line for feeding the workpiece. The center height position of various workpieces having different diameters sent by this workpiece feed line to the position on the workpiece feed line corresponding to the arrangement position of the workpiece is made to coincide with the machining height position by the machining apparatus. It is characterized in that a centering clamp device for clamping is arranged.
[0006]
According to this processing line device, when various workpieces with different diameters are fed to the position on the workpiece feed line corresponding to the position of the processing device, the centering of these various workpieces is performed by the aligning action of the aligning clamp device. The height position coincides with the machining height position by the machining apparatus. For this reason, workpieces of various diameters can be machined using the same workpiece feed line and machining apparatus, and multi-type production is possible.
[0007]
In addition, since the aligning clamp device also has a function of clamping the workpiece, the centering position of the workpiece is aligned with the machining height position of the machining device, and the workpiece is clamped. Thus, the workpiece can be machined by the machining device, and the alignment clamp device has two functions of alignment and clamping, so that the structure of the entire machining line device can be simplified.
[0008]
The aligning clamp device may be of any structure as long as the center height positions of round cross-section workpieces having different diameters are aligned at the same position and these workpieces can be clamped, for example, by a plurality of claw members Alternatively, a plurality of workpiece sandwiching elevating members, or an elevating means incorporating the workpiece sandwiching members may be used.
[0009]
When the claw members are formed by a plurality of claw members, these claw members are arranged at intervals in the outer circumferential direction of the workpiece having a circular cross section, and are movable by the same amount in the radial direction of the workpiece, When a round cross-section workpiece is inserted in the center of these claw members, the claw member moves by the same amount in the inner diameter direction of the workpiece, so that workpieces of various diameters are naturally aligned and finally clamped become.
[0010]
As described above, the specific structure for moving the plurality of claw members arranged at intervals in the outer circumferential direction of the work by the same amount in the radial direction of the work is such that each claw member is formed with a spiral groove. The rotating member may be rotated by being engaged with the spiral groove of the rotating member, or each claw member may be connected to an individual cylinder, and these cylinders may be operated synchronously by the same amount. A rack in which pinions engage with each claw member may be provided, and these pinions having the same diameter may be rotated synchronously by a motor or the like.
[0011]
The entire alignment clamp device including the device main body may be disposed on the workpiece feed line in a passive manner. However, the alignment clamp device main body including the clamp member for clamping the round cross-section workpiece is used as the workpiece. It is also possible to provide a pivoting device that pivots about the center of the clamping clamp, and the pivoting device can pivot the aligning clamp device body when the workpiece is clamped by the clamp member.
[0012]
In this way, when the aligning clamp device is provided with a rotating device that rotates the device main body around the workpiece, the workpiece clamped by the clamp member is also rotated, and thus the workpiece having a round cross section is rotated. Thus, it is possible to machine another part that is separated by a predetermined angle in the circumferential direction from the part machined by the machining apparatus in FIG.
[0013]
This rotating device may be one using a cylinder or one using a motor, and its structure is arbitrary.
[0014]
Further, in order to feed the workpiece on the workpiece feed line, when the workpiece feed line is formed by arranging a plurality of rolls, the roll may be rotated, or the workpiece feed line may be configured to rotate the workpiece. It is good also as a structure which provided the transfer apparatus which transfers by pulling etc. Furthermore, you may provide both of these structures partially in a workpiece | work feed line.
[0015]
The workpiece having a round cross-section is a hollow shaft, and a transfer device is disposed on the whole or a part of the workpiece feed line, and the inner and outer peripheral surfaces of the hollow shaft are clamped to the transfer device for transferring the hollow shaft. When the attachment portion is provided, the position of the attachment portion can be adjusted in the radial direction of the hollow shaft.
[0016]
According to this, since the position of the clamping part can be adjusted with respect to various hollow shafts having different diameters, the inner and outer peripheral surfaces of the hollow shafts of various diameters can be adjusted by moving the clamping part to a position corresponding to the diameter of the hollow shaft. As a result, the hollow shafts of various diameters can be transferred using the same transfer device, and also in this respect, production of various types of workpieces by the same workpiece feed line can be performed.
[0017]
In the above, the present invention can be applied to a case where a cross-sectional workpiece other than a hollow shaft, that is, a solid shaft is processed.
[0018]
Further, the processing device for processing the round cross-section workpiece may be a drilling device, or may be a threading device that forms a female screw in a prepared hole provided in advance in the round cross-section workpiece, and further, a cutting device, a grinding device, etc. But you can.
[0019]
Further, the work feed line may be formed by arranging a plurality of rolls such as a V-grooved roll or a flat roll, or may be a belt-type feed line, and its form is arbitrary.
[0020]
In addition, the round cross-section workpiece may be used as a part for a winding part of a shutter for a building, or may be used as a part for an industrial machine, or a part for a durable consumer product such as an automobile. is there.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing the entire processing line device according to the present embodiment, and FIG. 2 is a cross-sectional round workpiece W (specifically, a hollow shaft) having a long dimension by this processing line device. 2 shows a processed product of a predetermined length produced by forming holes 1 at respective predetermined positions in the length direction and cutting the workpiece W by A and B.
[0022]
This processed product is used as a central axis of a winding part of a building shutter, and four holes 1 are formed at both ends in the length direction at intervals of 90 degrees.
[0023]
In the processing line apparatus of FIG. 1, the workpiece W is fed from the workpiece supply unit 2 to the left side on the workpiece feed line 3, so that the workpiece W is drilled and cut. In order to perform these processes and produce the processed product of FIG. 2 from the long-sized workpiece W, in the processing line device according to the present embodiment, the dump table device 4, the cutting device 5, and the adjustment device are arranged on the left side of the workpiece supply unit 2. A center clamping device 6, a punching device 7, and a stopper device 8 are disposed, and a transfer device 9 and a dump table device 10 are disposed on the left side thereof. These devices 4 to 10 are controlled by the control device 11 so that the processed product shown in FIG.
[0024]
The workpiece feed line 3 is formed to include dump table devices 4 and 10, and passes through the cutting device 5, the aligning clamp device 6, and the stopper device 8 disposed between these dump table devices 4 and 10. The feed line 3 extends linearly, and two punching devices 7 are arranged facing both sides of the line 3. Further, the aligning clamp device 6 is provided at an intermediate position on the work feed line 3 corresponding to the arrangement position of the drilling device 7 which is a processing device.
[0025]
The workpiece W includes three types of workpieces W1, W2, and W3 having different diameters as shown in FIG. 3, and the workpiece supply device 2 of FIG. 1 is provided on both sides of the workpiece feed line 3. The It consists of supply parts 2A and 2B. Work W1 is supplied from one supply part 2A, and works W2 and W3 are supplied from the other supply part 2B to the work feed line 3, respectively. The work feed line 3 is formed by arranging a plurality of V-grooved rolls in the feed direction of the work W. Among these V-grooved rolls, the V-grooved roll 12 on the right side in FIG. It is rotated by a motor 14 through an endless traveling zone 13 such as a chain, and thereby the workpiece W is sent to the dump table device 4.
[0026]
Since the three types of workpieces W1, W2, and W3 have different diameters, when the workpieces W1, W2, and W3 are fed on the V-grooved roll and are fed on the workpiece feed line 3, as shown in FIG. The height position will be different.
[0027]
4 to 10 show the dump table device 4 and the cutting device 5 and their peripheral devices, and FIGS. 11 to 14 show the alignment clamp device 6. 15 and 16 show the punching device 7, FIG. 17 shows the stopper device 8, and FIGS. 18 to 20 show the transfer device 9 and the dump table device 10.
[0028]
Next, these devices will be described in order. 4 and 5, the cutting device 5 has a swing member 23 that can swing up and down about a shaft 22 supported by a bearing 21 on a base 20, and is attached to the swing member 23. The driving force of the motor 24 is transmitted to the rotating member 26 via an endless traveling belt 25 such as a chain, and thereby the rotating blade of FIG. 4 fixed to one end of the rotating member 26 to cut the workpiece W. 27 rotates. As shown in FIG. 5, a piston rod 28A of an upward cylinder 28 is connected to the swing member 23, and the swing member 23 swings by the expansion and contraction of the piston rod 28A.
[0029]
For this reason, the swing member 23 on which the motor 24 is mounted is an apparatus main body 5A of the cutting device 5, the rotary blade 27 is a processing tool attached to the cutting device 5, and the cylinder 28 is an apparatus main body. This is a moving device for moving 5A forward and backward toward the workpiece W.
[0030]
As shown in FIG. 6, a slider 29 is connected to the lower end of the cylinder 28. The slider 29 is guided by a guide member 30 attached to a base 20 with bolts 30A so as to be movable up and down (FIG. 7). For this reason, the entire cylinder 28 is also movable up and down. From this, the cylinder 28 can be moved to the workpiece W side via the apparatus main body 5A that can swing around the shaft 22 in FIG. Yes. A spring receiving member 31 shown in FIG. 6 is fixed to the base 20 with bolts 31 </ b> A below the slider 29, and a spring 32, which is an elastic member, is interposed between the spring receiving member 31 and the slider 29. Since the slider 29 is constantly urged upward by the spring 32, the cylinder 28 and the apparatus main body 5A are elastically urged toward the workpiece W side. A limit switch 33 is attached to the base 20 below the spring receiving member 31, and a dock member 34 for operating the limit switch 33 is slidably inserted into the upper and lower through holes 31 </ b> B formed in the spring receiving member 31. The screw shaft portion 34 </ b> A at the tip is screwed into the slider 29, and thus the dock member 34 is coupled to the slider 29.
[0031]
As shown in FIGS. 4 and 8, the dump table device 4 disposed on the right side of the cutting device 5 has a frame 41 having a rotatable V-grooved roll 40. The frame 41 is attached to the base 20 by a hinge 42 in FIG. 4 so as to be freely rotatable up and down, and the hinge 42 is expanded and contracted by the piston rod 43A of the cylinder 43 in FIG. To turn. The plurality of V-grooved rolls 40 rotate when the driving force of the motor 44 in FIG. 8 is transmitted through an endless traveling belt 45 such as a chain.
[0032]
As shown in FIG. 10, a cylinder 46 is mounted upward on the side of the frame 41, and the rear end of a bar member 48 that can swing up and down around a pin 48A is attached to the piston rod 46A of the cylinder 46. A roller holding member 50 having two rotatable pressing rollers 49 is rotatably attached to the end of the bar member 48 by a pin 50A, and the piston rod 46A of the cylinder 46 extends and operates. As a result, the pressing roller 49 and the roller holding member 50 descend like E.
[0033]
As shown in FIG. 8, another frame frame 51 is disposed on the left side of the frame frame 41 of the dump table device 4, and a plurality of V-grooved rolls 52 are also rotatably provided on the frame frame 51. The roll 52 rotates when the driving force of the motor 53 is transmitted through the endless traveling zone 54. The frame frame 51 is attached to the base 20 with a hinge 55 in FIG. 4, and the piston rod 56A of the cylinder 56 in FIG. 8 expands and contracts to rotate the frame frame 51 up and down around the hinge 55. In FIG. It is possible to have the same inclination posture as C of the frame frame 41 shown (since the hinge 55 is opposite to the hinge 42 of the frame frame 41, the inclination direction is reverse).
[0034]
As shown in FIG. 8, a cylinder 58 is installed at the left end of the frame 51 through a mount base 57. The piston rod 58A of the cylinder 58 that faces downward is provided with a guide member 59 as shown in FIG. An elevating member 60 that moves up and down while being guided is connected, and a roller holding member 62 including two rotatable pressing rollers 61 is rotatably attached to the elevating member 60 by a pin 62A.
[0035]
As shown in FIG. 8, roller support members 63 are fixedly provided at two locations in the base 20 that are separated from each other in the feed direction of the workpiece W, and as shown in FIGS. The two receiving rollers 64 that are rotatable are arranged in parallel in the horizontal direction perpendicular to the feed direction of the workpiece W.
[0036]
The V-grooved rolls 40 and 52 provided in the frame frames 41 and 51 described above form a part of the work feed line 3 shown in FIG. 1, and the work W is placed on these rolls 40 and 52. When the cylinders 43 and 56 are operated and the frame frames 41 and 51 are tilted as shown in FIG. 9C around the hinges 42 and 55, the workpiece W is transferred from the V-grooved rolls 40 and 52 onto the receiving roller 64. It is supposed to change. Thereafter, when the pressing rollers 49 and 61 are moved down by the operation of the cylinders 46 and 58, the work W is pressed against the receiving roller 64 by the pressing rollers 49 and 61, thereby preparing to cut the work W by the cutting device 5. It has become.
[0037]
For this reason, the pressing rollers 49 and 61 and the holding members 50 and 62 that hold them constitute a workpiece pressing and fixing device for pressing and fixing the workpiece W when the workpiece W is cut.
[0038]
As shown in FIG. 13, the alignment clamp device 6 shown in FIGS. 11 to 14 includes a bracket 71 fixed to a line base member 70, and a device main body rotatably held by a bearing 72 on the bracket 71. 73. The apparatus main body 73 includes a sleeve member 74 rotatably supported by a bearing 72, a base member 75 coupled to the sleeve member 74 with a bolt 75A, and a center portion of the bearing 72 that rotates in a vertical plane with respect to the base member 75. A rotating member 76 that is rotatably disposed as a center, and a cover member 77 that is coupled to the base member 75 and covers the front of the rotating member 76 are provided. The rotating member 76 is attached to the drive shaft of the motor 78 on the back surface. Since the circular rack teeth 76 </ b> A with which the pinion 79 is engaged are formed, the rotation member 76 is rotated by driving the motor 78.
[0039]
As shown in FIG. 14, three claw members 80 are arranged on the front surface of the apparatus main body 73 at equal intervals in the circumferential direction, and the rear end portions of these claw members 80 are formed on the cover member 77. It reaches the front surface of the rotating member 76 through the opening. As shown in FIG. 13, a spiral groove 76 </ b> B is formed around the rotation center of the rotation member 76 on the front surface of the rotation member 76, and the rear end portion of each pawl member 80 is engaged with the spiral groove 76 </ b> B. Therefore, when the rotating member 76 rotates, each claw member 80 moves by the same amount in the radial direction simultaneously. In the apparatus main body 73, a horizontal through hole 73A through which the work W is inserted is formed through the center of the three claw members 80. After the work W is inserted into the through hole 73A, the work W By moving the three claw members 80 arranged at intervals in the outer circumferential direction by the same amount in the inner diameter direction of the workpiece W, the workpiece W is centered on the center of the apparatus main body 73 ( The claw member 80 is clamped so as to coincide with the central portion of the bearing 72.
[0040]
For this reason, the claw member 80 is a clamp member for clamping the workpiece W.
[0041]
An arm member 81 extending in the outer diameter direction is coupled to the sleeve member 74 of the apparatus main body 73, and a piston rod 82A of the cylinder 82 is coupled to the tip of the arm member 81 as shown in FIG. As the piston rod 82A expands and contracts, the apparatus main body 73 rotates around the work W clamped by the three claw members 80 by the rotary bearing action of the bearing 72. The moving angle is 90 degrees until the arm member 81 comes into contact with the stopper members 83 and 84 provided on the line base member 70 and the bracket 71. Therefore, the work W is also rotated by 90 degrees while being clamped by the claw member 80. It is like that.
[0042]
As described above, the cylinder 82 rotates the apparatus main body 73 around the workpiece W, so that the cylinder 82 serves as the rotation device 85 of the alignment clamp device 6.
[0043]
The hole punching device 7 shown in FIGS. 15 and 16 is guided by the guide rail 91 fixed on the base table 90 toward the workpiece feed line 3, in other words, on the workpiece feed line 3. A slide member 92 that can move forward and backward toward the workpiece W is provided, and an apparatus main body 93 is attached to the slide member 92. A motor 94 is installed on the upper part of the apparatus main body 93, and the driving force of the motor 94 is transmitted to the rotating sleeve 96 of the apparatus main body 93 via the belt 95. As shown in FIG. 16, a spline shaft 97 is slidably engaged with the rotary sleeve 96 in the axial direction, and the spline shaft 97 is freely rotatable inside the cylindrical member 99 via a bearing 98. A drill 100 which is incorporated so as to be immovable and is a tool for drilling a workpiece W is attached to the tip of the spline shaft 97 via a shank member 101.
[0044]
For this reason, when the motor 94 is driven, the drill 100 rotates via the belt 95, the rotating sleeve 96, the spline shaft 97, and the shank member 101. As shown in FIG. 16, a cylinder 102 is interposed between the base 90 and the slide member 91, and the piston rod 102A of the cylinder 102 expands and contracts, so that the apparatus main body 93 is shown in FIG. Advancing and retreating toward the workpiece W while being guided by the guide rail 91.
[0045]
A front member 103 is attached to the front end flange portion 99A of the cylindrical member 99 of FIG. 16, and a spring 105, which is an elastic member, is interposed between the front member 103 and the case member 104 of the apparatus main body 93 as shown in FIG. Has been. Since the cylindrical member 99 shown in FIG. 16 is fitted into a bearing sleeve 106 fixed inside the case member 104 so as to be slidable in the axial direction, when a load in the backward direction is applied to the drill 100, a spring is provided. The drill 100, the front member 103, the spline shaft 97, and the tubular member 99 can be moved backward by compressing 105. As shown in FIG. 15, the limit switch 107 is attached to the case member 104 behind the front member 103, and when the drill 100 or the like moves backward, the limit switch 107 is operated by the dock member 108 of the front member 103.
[0046]
From the above configuration, the drill 100 is a processing tool of the drilling device 7, and the shank member 101, the spline shaft 97, and the tubular member 99 of the drill 100 are movable in the axial direction of the bearing sleeve 106. The drill 100 is elastically urged toward the work W side with respect to the apparatus main body 93 by a spring 105. The cylinder 102 is a moving device that moves the apparatus main body 93 forward and backward toward the workpiece W.
[0047]
As shown in FIGS. 11, 13, and 14, the support member 109 attached to the bracket 71 of the alignment clamp device 6 is inserted when the drill 100 advances toward the workpiece W. A guide member 110 having a hole 110 </ b> A is provided, and when the drill 100 is inserted into the hole 110 </ b> A of the guide member 110, the drilling height position of the workpiece W by the drill 100 is aligned by the alignment clamp device 6. Thus, the workpiece W can be drilled by making the drill 100 abut against the workpiece W while preventing the deflection of the drill 100 while matching the exact center of the workpiece W clamped.
[0048]
The stopper device 8 shown in FIG. 17 has a ceiling device at the upper end of the upright support member 111.
A cylinder 113 attached downward to the member 112 is provided, and a stopper member 114 is attached to the piston rod 113A of the cylinder 113. The stopper member 114 moves up and down while being guided by the guide rod 115 by the expansion and contraction of the piston rod 113A. To do. When the stopper member 114 is lowered to the lower limit as shown by F, the movement of the workpiece W fed on the workpiece feed line 3 is stopped, and thereby the workpiece W is accurately positioned and stopped at the reference position. It is like that.
[0049]
The transfer device 9 shown in FIGS. 18 to 20 is guided by a pair of guide rails 122 provided in parallel to the work feed line 3 on the horizontally extending member 121 on the support column 120 of FIG. 19 and these guide rails 122. And a traveling body 123 that can travel freely. A motor 125 is installed on the plate-shaped main body 124 of the traveling body 123, and a pinion 126 coupled to a drive shaft of the motor 125 is attached to a rack member 127 fixed to the horizontal extending member 121 in parallel with the guide rail 122. Because of the meshing, the traveling body 124 travels in parallel with the workpiece feed line 3 by driving the motor 125 fed from the power feeding device 128.
[0050]
As shown in FIG. 18, the traveling body 123 of the transfer device 9 is provided with a sandwiching portion 129 that sandwiches the inner and outer peripheral surfaces of the work W that is a hollow shaft. The specific structure of this clamping part 129 is shown in FIG. The main body 124 is provided with a vertical ball screw shaft 131 rotated by a motor 130. A nut member 132 into which the ball screw shaft 131 is screwed is fixed to the lower member 133. When the motor 130 is driven, the lower member 133 is driven. Moves up and down while being guided by the guide bar 134 as the ball screw shaft 131 rotates. A piston rod 136A of a downward cylinder 136 attached to the upper member 135 is coupled to the lower member 133, and the upper member 135 is guided to the guide bar 137 by the expansion and contraction movement of the piston rod 136A with respect to the cylinder 136, and the lower member 133. Move up and down.
[0051]
At the tips of the lower member 133 and the upper member 135, upper and lower clamping members 139 and 140 that are relatively movable up and down while being prevented from being displaced by a small-diameter guide member 138 are provided. When the upper member 135 is lowered with respect to the lower member 133, the sandwiching members 139 and 140 sandwich the inner and outer peripheral surfaces of the workpiece W.
[0052]
Further, the position of the sandwiching portion 129 formed by the upper and lower sandwiching members 139, 140 and the like on the traveling body 123 can be adjusted in the vertical direction, in other words, in the radial direction of the workpiece W by driving the motor 130. When the position of the sandwiching portion 129 reaches a position corresponding to the diameters of the three types of workpieces W1, W2, and W3 shown in FIG. 3, the motor 130 is driven by the operation of a limit switch (not shown). It comes to stop.
[0053]
The dump table apparatus 10 shown in FIGS. 18 and 19 has a table 142 to which a V-grooved roll 141 forming the workpiece feed line 3 is attached. This table 142 is connected to the horizontal by the hinge 143 of FIG. It is connected to the extending member 121 so as to be rotatable up and down. A piston rod 144A of an obliquely upward cylinder 144 is connected to the table 142. Since this cylinder 144 is a two-stage stroke type, the piston 142 144A expands and contracts in two stages, so that the table 142 is like G and H. Inclined about the hinge 143 in two steps.
[0054]
Next, a work process for the workpiece W performed by controlling each device by the control device 11 shown in FIG. 1 will be described.
[0055]
As described above, the workpiece W sent to the dump table device 4 by the V-grooved roll 12 rotated by the motor 14 of the workpiece feed line 3 from the workpiece supply unit 2 in FIG. 1 is the dump table device in FIG. 4 is transferred to the V-grooved roll 40 rotated by the motor 44 and the V-grooved roll 52 rotated by the motor 53, and the rotation of the V-grooved rolls 40, 52 causes the workpiece W to further 13 enters the through hole 73A of the apparatus main body 73 shown in FIG. 13 and reaches the position where the stopper device 8 is installed. At this time, since the stopper member 114 shown in FIG. 17 of the stopper device 8 is lowered to the lowering position of F, the workpiece W comes into contact with the stopper member 114 and its feeding is stopped, and the workpiece W comes into contact with the stopper member 114. When this is detected by a sensor (not shown), the driving of the motors 14, 44, 53 is stopped. As a result, the workpiece W has been fed to a position where the tip coincides with the reference position.
[0056]
Next, the stopper member 114 of the stopper device 8 is raised, and the traveling body 123 of the transfer device 9 is advanced from the retracted position of the left end in FIG. 18 to the installation position of the stopper device 8. At this time, the sandwiching portion 129 of the traveling body 123 is at a height position corresponding to the diameter of the workpiece W sent by the operation of the motor 130 of FIG. 20, and the upper member 135 is moved downward by the operation of the cylinder 136. For this reason, the clamping members 139 and 140 of the clamping part 129 are open, and the gap between the open clamping members 139 and 140 is between the inner and outer peripheral surfaces of the workpiece W. When the upper member 135 is lowered by the operation of the cylinder 136, the inner and outer peripheral surfaces of the workpiece W are clamped by the clamping members 139 and 140.
[0057]
In this way, the workpiece W having the inner and outer peripheral surfaces sandwiched by the sandwiching portion 129 travels a predetermined distance on the left side in FIG. 18 along the guide rail 122 parallel to the workpiece feed line 3 by the traveling body 123 of the transfer device 9. As a result, the location where the hole 1 shown in FIG. 2 in the length direction of the workpiece W is to be opened is sent to a position that coincides with the position of the drill 100 of the drilling device 7 by the pulling action of the traveling body 123. And the work W stops at that position. Thereafter, the clamping of the workpiece W by the clamping portion 129 is released by the operation of the motor 130 and the cylinder 136, and the three claw members 80 of the alignment clamp device 6 in which the workpiece W has entered the through hole 73A. 13 is simultaneously moved in the inner diameter direction by the same amount by the motor 78 of FIG. 13, so that the workpiece W which has been placed on the V-grooved roll of the workpiece feed roll 3 so far is centered by the claw member 80 at the center. It rises to the height position of the center portion of the apparatus main body 73, that is, the height position coincident with the height position of the drill 100 of the drilling apparatus 7, and is clamped by the three claw members 80.
[0058]
After that, the drilling device 7 advances at a high speed toward the workpiece W by the operation of the cylinder 102 in FIG. 16, and the drill 100 rotating by the motor 94 in FIG. 15 is replaced with the guide member 110 shown in FIG. The workpiece W is drilled as described below while being inserted into the hole 110A.
[0059]
When the drill 100 comes into contact with the workpiece W at a high speed, a load in the backward direction acts on the drill 100, so that the drill 100 and the front member 103 are retracted by compressing the spring 105 of FIG. Since the limit switch 107, which is a detection device, is operated by the dock member 108, the switching valve of the cylinder 102, which is a hydraulic cylinder, is switched by a signal from the limit switch 107, whereby the operating speed of the cylinder 102 is changed from high speed to low speed. At this low speed, the drill 100 moves forward to punch the workpiece W. When the hole is formed through the workpiece W, the drill 100 and the front member 103 project forward by the elastic force of the compressed spring 105, so that the limit switch 107 is actuated again (off-actuation). By the reverse operation of 102, the drilling device 7 returns to the initial position before drilling.
[0060]
Since the drilling of the workpiece W is performed by the drilling device 7 in this way, the drilling device 7 is fed at a high speed until the drill 100 abuts against the workpiece W, and is switched to a low speed just before the drill 100 abuts against the workpiece W. Therefore, the drilling time for one cycle can be shortened, and the working efficiency can be improved. Further, the impact when the drill 100 comes into contact with the workpiece W is absorbed by the spring 105, and the drill 100 is inserted into the hole 110A of the guide member 110, so that the drill 100 is brought into contact with the workpiece W at high speed. However, it is possible to prevent the drill 100 from being displaced from the processing position of the workpiece W, and it is possible to perform accurate drilling.
[0061]
Thereafter, the three claw members 80 of the aligning clamp device 6 are moved in the outer diameter direction by the motor 78 to release the workpiece W from being clamped, whereby the workpiece W is placed on the V-grooved roll of the workpiece feed line 3. And the workpiece | work W is clamped by the clamping part 129 of the traveling body 123 of the transfer device 9, and the location where the traveling body 123 travels again and opens the next hole 1 of the workpiece W is the position of the drill 100. The workpiece W is sent to the matching position. Then, the drilling device 7 moves forward again and drilling with the drill 100 is performed. Such drilling is performed for each hole 1 of the workpiece W shown in FIG.
[0062]
Since it is necessary to form four holes 1 at intervals of 90 degrees at both ends in the length direction of the workpiece W, drilling of these ends is performed as follows.
[0063]
After the drilling device 7 advances, the workpiece W is drilled by the drill 100 and the drilling device 7 moves backward, and then the workpiece W is clamped by the three claw members 80 of the aligning clamp device 6. In this state, the cylinder 82 shown in FIG. 12 is operated, whereby the aligning clamp device main body 73 rotates 90 degrees around the workpiece W, and the drilling device 7 moves forward to drill the workpiece W with the drill 100. .
[0064]
As described above, in the present embodiment, the alignment clamp device main body 73 can be rotated 90 degrees around the workpiece W while the workpiece W is clamped. Drilling can be performed on the workpiece W at intervals of 90 degrees with the drilling device 7 arranged.
[0065]
After the predetermined number of holes 1 are formed in the workpiece W, the workpiece W which has been clamped by the claw member 80 of the alignment clamp device 6 is clamped by the clamping portion 129 of the traveling body 123 of the transfer device 9. The distance from the front end of the workpiece W to the rotary blade 27 of the cutting device 5 in FIG. 4 is the same as the length of the workpiece (interval between AB) shown in FIG. At this time, the feeding of the workpiece W by the traveling body 123 is stopped. Then, by the operation of the cylinders 43 and 56 in FIG. 8, the frame frames 41 and 51 are tilted as shown in FIG. 9C around the hinges 42 and 55, whereby the V-grooved rolls 40, 5 and 10 is transferred to the receiving roller 64 of FIGS. 5 and 10, and the pressing rollers 49 and 61 lowered by the operation of the cylinders 46 and 58 of FIGS. 5 and 10 are pressed against the receiving roller 64. Fix it.
[0066]
Thereafter, the operation of the cylinder 28 in FIG. 5 causes the swinging member 23, which is the main body 5A of the cutting device 5, to swing around the shaft 22, whereby the work W is cut by the rotary blade 27 as follows. The
[0067]
Until the rotary blade 27 comes into contact with the workpiece W, the cylinder 28 receives the upward elastic force of the spring 32 supported by the spring receiving member 31 acting on the slider 29 in FIG. The rod 28 </ b> A extends and operates at a high speed as it is, and the rotary blade 27 comes into contact with the workpiece W by the swing of the swing member 23. After this contact, an upward load, which is a cutting reaction force, acts on the rotary blade 27, and the cylinder 28 and the slider 29 are lowered while compressing the spring 32 by the reaction force from the piston rod 28 </ b> A. The dock member 34 to which the screw shaft portion 34A is coupled is also lowered, and the limit switch 33 that is a detection device is operated. In response to a signal from the limit switch 33, the switching valve of the cylinder 28, which is a hydraulic cylinder, is switched, whereby the extension speed of the piston rod 28A is switched from a high speed to a low speed. Therefore, the workpiece W is cut by the rotary blade 27 by the pressing force from the piston rod 28 </ b> A that extends and operates at a low speed.
[0068]
When the cutting of the workpiece W by the rotary blade 27 is finished, the upward load acting on the rotary blade 27 is lost, and the cylinder 28 and the slider 29 are moved upward by the elastic force of the compressed spring 32. The limit switch 33 is actuated again (off-actuation), and the piston rod 28A is contracted by the signal from the limit switch 33 to raise the rotary blade 27, and the cutting device 5 returns to the previous state.
[0069]
As described above, the cylinder 28 operates at a high speed until the rotary blade 27 contacts the workpiece W, and is not switched to a low-speed operation before the rotary blade 27 contacts the workpiece W. The cutting process time of 1 cycle can be shortened, and work efficiency can be improved. Further, since the spring 32 is compressed when the rotary blade 27 comes into contact with the work W, the impact at the time of the contact can be reduced, and the work W and the rotary blade 27 can be prevented from being damaged.
[0070]
When the cutting of the workpiece W by the cutting device 5 is finished, the workpiece closer to the transfer device 9 than the cutting device 5 is the processed product shown in FIG. By being traveled by the traveling body 123 after being sandwiched by the sandwiching portion 129, it is fed onto the V-grooved roll 141 of the dump table device 10 of FIG. Then, when the table 144 of the dump table apparatus 10 is tilted like G by the operation of the cylinder 144 of FIG. 19, the processed product is put into and stored in the processed product shelf 150 (see also FIG. 1).
[0071]
On the other hand, the workpiece W which is shorter than the cutting device 5 on the side opposite to the transfer device 9 is lifted by the pressing rollers 49 and 61 by the operation of the cylinders 46 and 58 of FIGS. When the rotation of the table frames 41 and 51 to the horizontal state around the hinges 42 and 55 by the operation of 56 is restored to the horizontal state, the rollers 40 and 52 are transferred from the receiving roller 64 to the rolls 40 and 52 with V grooves. Thereafter, the workpiece W is sent to the transfer device 9 side by the rotation of the V-grooved roll 12 of FIG. 1 or the V-grooved roll 40 of the dump table device 4 of FIG. 4, and the tip thereof is the stopper device 8 of FIG. When this position is reached, it comes into contact with the descending stopper member 114, whereby the positioning stop at the reference position is performed as described above.
[0072]
Thereafter, as described above, a predetermined distance of the workpiece W is fed by the traveling body 123 of the transfer device 9, drilling processing by the drilling device 7, and cutting by the cutting device 5 are performed.
[0073]
These machining operations are performed until a plurality of the workpieces that can be produced from the long workpiece W are produced, and these workpieces are loaded and stored in the workpiece shelf 150 in FIG.
[0074]
When the end material of the workpiece W after a predetermined number of processed products are produced from the workpiece W, the end material is sent to the dump table device 10 by the transfer device 9 and the table 142 is moved by the cylinder 144 of FIG. By tilting like H, the end material is put into and stored in the end material shelf 151.
[0075]
Thus, since the table 142 of the dump table apparatus 10 is inclined in two stages of G and H, the processed product shelf 150 and the end material shelf 151 can be provided at the same position along the workpiece feed line 3, and accordingly only The workpiece feed line 3 can be shortened.
[0076]
On the other hand, when the end material is short, the end material is not sent to the dump table device 10 by the transfer device 9, and the end material is dumped by the cylinder 43 of FIG. 9 at the position cut by the cutting device 5. When the fourth frame 41 is tilted like D around the hinge 42, it is loaded and stored in the end material shelf 152 shown in FIG.
[0077]
For this reason, in the case of a short end material, the work time for running the traveling body 123 of the transfer device can be omitted, and the work efficiency can be improved accordingly.
[0078]
In the above, the workpiece feeding line 3 is supplied with the workpieces W1, W2, W3 having different diameters shown in FIG. 3 from the workpiece supply unit 2, and when the workpieces W having different diameters are supplied in this way, the transfer device 9 can be adjusted in the vertical direction, that is, in the diameter direction of the workpiece W by the motor 130 of FIG. 20, so that the workpieces W1, W2, and W3 are securely attached. And can be sent to each predetermined position by the traveling of the traveling body 123.
[0079]
The aligning clamp device 6 that clamps the workpiece W at the time of drilling the workpiece W by the drilling device 7 has three claw members arranged at intervals in the outer circumferential direction of the workpiece W. These claw members 80 are simultaneously moved in the inner diameter direction by the same amount in the spiral groove 76B of the rotating member 76 when the motor 78 of FIG. 13 is driven, so that the various works W1, W2, W3 having different diameters are The center of the drilling device 100 is centered at the same height, and is naturally aligned and clamped.
[0080]
For this reason, various workpieces having different diameters can be machined on the same workpiece feed line 3, and multi-type production can be performed.
[0081]
Moreover, since the aligning clamp apparatus 6 clamps the workpiece | work W with the nail | claw member 8, it has an aligning function and a clamp function, and can simplify the structure of the whole line by this.
[0082]
【The invention's effect】
According to the present invention, various cross-sectional round workpieces having different diameters can be machined by the same workpiece feed line, and multi-type production can be performed.
[Brief description of the drawings]
FIG. 1 is a plan view showing a processing line device according to an embodiment of the present invention.
FIG. 2 is a perspective view of a processed product produced from a workpiece.
FIG. 3 is a side view showing a state in which workpieces having different diameters are placed on a V-grooved roll.
FIG. 4 is a plan view showing a cutting device and its periphery.
5 is a side view taken along line VV in FIG. 4. FIG.
FIG. 6 is a partially broken view showing a part of the cutting device.
7 is a cross-sectional view taken along the line VII-VII in FIG. 6;
FIG. 8 is a front sectional view of FIG. 4;
9 is a cross-sectional view taken along line IX-IX in FIG.
10 is a side cross-sectional view of FIG. 4. FIG.
FIG. 11 is a plan view of the alignment clamp device.
12 is a side view of FIG. 11. FIG.
13 is a front sectional view of FIG. 11. FIG.
14 is a side view of FIG. 11 opposite to FIG.
FIG. 15 is a side view of the punching device.
16 is a cross-sectional view of a main part of FIG.
FIG. 17 is a front view of the stopper device.
FIG. 18 is a plan view of the transfer device and its surroundings.
FIG. 19 is a side sectional view of FIG. 18;
20 is a cross-sectional view taken along line XX-XX in FIG.
[Explanation of symbols]
3 Work feed line
4,10 Dump table device
5 Cutting device
6 Centering clamp device
7 Drilling device
8 Stopper device
9 Transfer device
27 Rotary blade
73 Device body of aligning clamp device
80 Claw member which is a clamp member
82 Cylinder as a rotating device
123 Traveling body of transfer device
129 Clamping part

Claims (6)

A processing device that is capable of moving forward and backward toward the workpiece and that processes the workpiece is disposed on the side of the workpiece feeding line for feeding the workpiece, and a position on the workpiece feeding line that corresponds to the position of the processing device. In addition, a centering clamping device that clamps these workpieces by aligning the center height position of various workpieces having different diameters sent by the workpiece feeding line with the machining height position by the processing device is arranged. The aligning clamp device has a device main body in which a through hole through which the workpiece is inserted is formed, the device main body is disposed to face the base member in the longitudinal direction of the work, A rotating member that is rotatable about a center portion that coincides with the center of the workpiece, and the apparatus main body includes a plurality of members spaced apart in the outer circumferential direction of the workpiece. Claw members are disposed, and these claw members are engaged with the rotating member so as to move simultaneously by the same amount in the radial direction by the rotation of the rotating member, and the apparatus main body is disposed on the base member side. The part of the workpiece to be processed by the processing device is rotated by the center of the apparatus main body, which is held by a bracket so as to be rotatable about the center, and the work is clamped by the claw member. A machining line device for a round workpiece having a circular cross section, wherein the workpiece is changed in the circumferential direction of the workpiece. 2. The processing line device for round workpieces according to claim 1, wherein the engagement of the plurality of claw members with the rotating member is performed by a spiral groove formed in the rotating member with the central portion as a center. A processing line device for round workpieces with a cross section. 3. The processing line device for round cross-section workpiece according to claim 1 , wherein a sleeve member rotatably supported around the central portion by the bracket is coupled to the base member, and the sleeve member is coupled to the sleeve member. An apparatus for processing a round sectional workpiece characterized in that an arm extending in the outer diameter direction is coupled, and the apparatus main body rotates around the central portion by expansion and contraction of a piston rod of a cylinder connected to the arm member . The processing line device for round cross-section workpiece according to any one of claims 1 to 3, wherein the processing device is a drilling device or a threading device that forms a female screw in a prepared hole provided in advance in the workpiece, A machining line device for a round cross-section workpiece, wherein the attached support member is provided with a guide member having a hole through which a tool of the machining device advanced toward the workpiece is inserted . 5. The processing line device for a round cross-section workpiece according to claim 1, wherein a pinion disposed between the rotating member and the base member is provided on the surface of the rotating member on the base member side. A processing line device for round cross-section workpieces, in which meshing teeth are formed, and the rotating member rotates around the central portion by rotation of the pinion driven by a motor . 6. The processing line device for a round cross-section workpiece according to claim 1 , wherein the round cross-section workpiece is a hollow shaft, and an inner and outer peripheral surface of the hollow pipe is sandwiched between the workpiece feed lines. A processing line device for round cross-section workpieces, wherein a transfer device for clamping and transferring is disposed, and the clamping portion is provided in the transfer device so as to be positionally adjustable in the radial direction of the hollow shaft.

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