JPH063541U - Pallet jig work attachment / detachment device - Google Patents

Abstract

(57) [Summary] [Purpose] To shorten the work clamp time and take-out time, improve the machine operation rate, and reduce the equipment cost and space. [Structure] A clamping device for clamping a work on a pallet jig, an unclamping mechanism that engages with the clamped work and unclamps the work, and the delivery of the work in synchronization via a transmission mechanism. And a single drive source for driving them. [Effect] The work rate is improved by facilitating the work clamp, and the work cost can be reduced and the space can be saved because the work can be unclamped and discharged by a single drive source.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pallet jig attaching / detaching device suitable for clamping a work on a pallet jig and taking out the work at a predetermined position.

[0002]

[Prior art]

 As a clamp tool for mounting a work on a pallet jig, a fastener or the like is brought into contact with the work, and the work is manually tightened with the fastener by using bolts, nuts or the like. Also, in order to mount the work quickly, automation of the clamp tool is in progress, but it is difficult to fully automate it, and in many cases, it depends on manual operation. On the other hand, a device that takes out a work clamped to a pallet jig after a predetermined processing is completed has been conventionally used. In order to take out the clamped work, a work ejection device for unclamping the work and ejecting the unclamped work is required. In the prior art, the unclamping device and the work unloading device are separately provided and operated by individual drive sources arranged in each device.

[0003]

[Problems to be solved by the device]

 It takes a lot of time to manually clamp the work, which causes a problem of lowering the machine operation rate. In particular, when a large amount of workpieces are sequentially carried into the machine side and continuously machined, if the workpiece mounting time is long, continuous work cannot be performed smoothly, resulting in a problem that production efficiency is reduced. On the other hand, if the unclamping device for taking out the machined work and the work discharging device are separately arranged, the equipment cost becomes large and the installation space becomes large, so that there is a problem that the space cannot be saved.

The present invention solves the above problems, and shortens the time for clamping and taking out workpieces, improves the machine operating rate, reduces the equipment cost, and saves space. An object is to provide a detachable device.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention engages a clamping device mounted on the pallet jig side for holding a work and the pallet jig transferred to the work removal position to remove the work. The clamp device comprises a clamp and a work take-out device for ejecting, and the clamp device includes a clamp head part detachably coupled to the work, a spring, and a pressing force of the spring transmitted to the clamp head part. An unclamping mechanism configured to move the head part to a clamp position of the work and the work picking device detachably engages with the clamp device to move the clamp head part in the unclamping direction. And a work-discharging mechanism unit that detachably engages with the work and moves in a direction in which the work is dispensed, And a work drive mechanism for driving the work clamp mechanism and the work discharge mechanism, and between the drive mechanism and the unclamp mechanism and the work discharge mechanism, only a predetermined amount of both mechanisms are simultaneously provided. It constitutes a device for attaching / detaching a pallet jig with a moving transmission mechanism intervening.

[0006]

[Action]

 The work is clamped by the clamp device on the pallet jig and transferred to the work take-out device arranged at a predetermined place. The operation of the single drive source operates the unclamp mechanism section, and at the same time, the work delivery mechanism section operates via the transmission mechanism section. The workpiece is unclamped by the unclamping mechanism and discharged in the discharging direction by the workpiece discharging mechanism. The next work is clamped to the pallet from which the work has been removed, and the same process is repeated in sequence.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a front view showing the entire structure of the present embodiment, FIG. 2 is a plan view showing a part of the unclamping mechanism section and the workpiece discharging mechanism section as viewed in the direction of arrow A in FIG. 1, and FIG. FIG. 3 is a partial front view showing a connection structure with one drive source. The work attachment / detachment device of the pallet jig is composed of a clamp device 1 for clamping the work and a work removal device 2 for removing the processed work. In the present embodiment, the clamp device 1 is mounted on a pallet jig, clamps the work, and then is transferred to the work take-out device 2 side arranged at a predetermined position. Further, as shown in FIG. 1, the work take-out device 2 is arranged below the pallet jig. The clamp device 1 is composed of a transmission part 3, a spring 4 and a head clamp part 5. On the other hand, the work take-out device 2 is composed of an unclamping mechanism 6, a work paying-out mechanism 7, and a single drive source 8. A transmission mechanism 9 is provided between the unclamp mechanism 6 and the work payout mechanism 7. Hereinafter, detailed structures thereof will be sequentially described.

As shown in FIG. 1, the transmission portion 3 of the clamp device 1 includes an arm portion 301, a link plate 303 connected to the arm portion 301 with a pin 302, and one end side thereof connected to the link plate 303 with a pin 304. A push-up rod 305, a spring receiving member 306 screwed to the other end, and the like. The arm portion 301 has its base end portion connected to the stand 11 via a pin 307. The push-up bar 305 is arranged so as to penetrate the base plate 12 of the pallet jig. The spring 4 is interposed between the spring receiver 306 and the base plate 12, and the spring force at the time of attachment is formed so as to have a pressing force that can sufficiently clamp the work. The head clamp portion 5 is detachably fixed to the arm portion 301 with a bolt 501, and a tip end portion thereof is provided with abutting portions 502 and 503 for abutting against a work. Although the detailed structure of the head clamp portion 5 is omitted, the contact portions 502 and 503 are formed so as to be able to simultaneously press the workpiece during clamping.

A jig base 13 is placed on the base plate 12 of the pallet jig, and a stand 11 and a stopper 14 are fixed on the jig base 13. The work 10 is positioned by abutting one surface thereof on the jig base 13 and the stopper 14 on the other surface. In the present embodiment, the case where two sets of the clamp devices 1 are mounted on the base plate 12 is shown, but of course the invention is not limited to this. As will be described later, in FIG. 1, the left side shows the state where the work 10 is clamped and the right side shows the state where the work 10 is taken out. However, in reality, the two work sets 10 on the clamp device 1 are shown. Are clamped at the same time and taken out at the same time.

Next, the unclamping mechanism 6 of the work picking device 2 will be described. The unclamping mechanism 6 is for unclamping the workpiece 10. As shown in FIGS. 1 to 3, a push-up base 601 and a pair of pushers 603 to which an axial length is adjustable by a nut 602 are fixed. , 603, and a guide rod 604, which is fitted to the push-up base 601 and arranged along the axial direction of the pusher 603. The guide rod 604 is slidably supported along the axial direction by a guide bush 16 fixed to the fixed side 15 of the device.

As shown in FIGS. 1 to 3, the work ejection mechanism 7 includes a support base 701, push rods 703 and 703 connected to the support base 701 by a nut 702, and a nut 704 in a hollow portion of the support base 701. It is composed of an operating rod 705 to be connected, and a pair of guide rods 707, 707 and the like connected to both ends of the support base 701 by nuts 706. The push rod 703, the operating rod 705, and the guide rod 707 are provided together with the pusher 603. The elongated guide rod 707 is slidably supported by a guide bush 708 mounted on the push-up base 601. A spring receiving seat 709 is screwed to the lower end side of the drawing. Further, a spring 710 is interposed between the spring receiving seat 709 and the guide bush 708, and urges the pushing rod 703 to push downward in the figure.

Next, the single drive source 8 will be described. As shown in FIGS. 1 and 3, the single drive source 8 is composed of a cylinder 801 to which the base 17 of the fixed side 15 is fixed, and its piston rod 802 is connected to the push-up base 601. Move up and down. The cylinder 801 is connected to a drive source operation control device (not shown) through a pipe (not shown).

Next, the transmission mechanism section 9 provided between the unclamping mechanism section 6 and the workpiece discharging mechanism section 7 and the single drive source 8 will be described. The transmission mechanism unit 9 includes a link 902 that connects one end side of the push-up base 601 with a pin 901, a link 904 that connects the other end side of the link 902 with a pin 903, and one end side of the link 904 via a pin 905. It is composed of an adjusting device 906 and the like to be connected. The other end of the link 904 is connected to the bracket 18 fixed to the base 17 side by a pin 907. The adjusting device 906 is detachably fixed to the operating rod 705. Relative positional relationship between the link 904 and the operating rod 705, which is composed of the locking tools 908 and 909 and is connected via the pin 905 by adjusting the engaging position of the locking tools 908 and 909 and the operating rod 705. Formed to adjust dimensions.

A dog 19 is screwed onto the guide rod 604 of the unclamp mechanism section 6, and the dog 19 engages with limit switches 20 and 21 arranged on the fixed side 15. The limit switches 20 and 21 are for detecting the moving position of the unclamp mechanism section 6 and the like.

Next, the operation of each device of this embodiment will be described. First, the operation of the clamp device 1 will be described. Since the head clamp portion 5 is pressed against the jig base 13 by the pressing force of the spring 4, the head clamp portion 5 is pushed up manually and the work 10 is inserted. The workpiece 10 is brought into contact with the jig base 13 and the stopper 14 to be positioned, and is fixed by the abutting portions 502 and 503 of the head clamp portion 5. As described above, the work 10 is clamped on the pallet jig. The work 10 and the clamped pallet jig are transferred onto the work take-out device 2 at a predetermined position.

Next, the operation of the work picking device 2 will be described. When the processing of the workpiece 10 on the pallet jig transferred to the predetermined position is completed, the single drive source 8 is activated, and the piston rod 802 of the single drive source 8 moves upward in FIG. The push-up base 601 and the pusher 603 of the unit 6 move upward. The pusher 603 comes into contact with the spring receiver 306 of the clamp device 1, and when the pusher 603 is pushed up, the spring 4 contracts and the push-up bar 305 moves upward as shown on the right side of FIG. Along with this, the link plate 303 moves, and the arm portion 301 rotates counterclockwise about the pin 307. As a result, the head clamp portion 5 separates from the work 10 and the work 10 is unclamped. On the other hand, as the push-up base 601 rises, the link 902 of the transmission mechanism unit 9 connected thereto moves, and the link 904 connected to the link 902 rotates around the pin 907. Since the tip of the link 904 is connected to the adjusting device 906 via the pin 905, the adjusting device 906 moves. Since the adjusting device 906 is connected to the operating rod 705 of the work ejection mechanism 7, and the operating rod 705 is connected to the supporting base, the supporting base 701 and the pushing rod 703 are raised. Since the through hole 22 through which the push rod 703 can penetrate is formed in the base plate of the pallet jig, the push rod 703 penetrates the base plate 12 and contacts the work 10. Since the work 10 is unclamped by the unclamping mechanism 6 as described above, the work 10 is moved upward by the upward movement of the pushing rod 703 and is discharged. As described above, the work 10 is discharged while being unclamped. Since the link 902 of the transmission mechanism unit 9 is connected to the intermediate position of the link 904, the support base 701 moves larger than the push-up base 601. Therefore, the gap between the guide bush 708 fitted on the push-up base 601 side and the guide rod 707 fixed to the support base 701 is closed, that is, the spring 710 is contracted, and the push rod 703 receives a pressing force in the descending direction. . The dog 19 and the limit switches 20, 21 fixed to the guide rod 604 confirm the unclamping and the payout of the work 10 by the movement of the push-up base 601. At that time, when the operation of the single drive source 8 is stopped, the unclamping mechanism section 6 and the workpiece discharging mechanism section 7 descend via the transmission mechanism section 9 due to the reaction force of the spring 4 and the spring 710, and Restore to position. The discharged pallet jig of the work 10 returns to the original position, and the new work 10 is clamped again and circulated.

In the present embodiment, the clamp device on the pallet jig is illustrated, but the detailed structure thereof is not limited to that illustrated. Further, the transmission mechanism section 9 synchronously moves the unclamping mechanism section 6 and the workpiece discharging mechanism section 7 which are moved by a single drive source 8, and synchronizes the pusher 603 and the push-up rod 703 with the workpiece 10. The structure is not limited to that shown in the drawings.

[0018]

[Effect of device]

 According to the present invention, the following effects can be obtained. (1) The work is clamped by a simple operation in which the head clamp part of the clamp device is pushed up to insert the work and the hand is released from the head clamp part, and the work time for the clamp is shortened. (2) The work is unclamped and discharged at the same time by the operation of a single drive source, so that the working time can be shortened and the machine operating rate can be improved. (3) The unclamping mechanism section and the workpiece discharging mechanism section are compacted together via the transmission mechanism section, and space can be saved. (4) Equipment cost is reduced because a single drive source is used.

[Brief description of drawings]

FIG. 1 is a front view showing the overall structure of an embodiment of the present invention.

FIG. 2 is a partial plan view taken along the arrow A in FIG.

FIG. 3 is a partial front view showing a connection structure of an unclamp mechanism section and a single drive source according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clamping device 2 Work taking-out device 3 Transmission part 4 Spring 5 Head clamp part 6 Unclamping mechanism part 7 Workpiece discharging mechanism part 8 Single drive source 9 Transmission mechanism part 10 Work 11 Stand 12 Base plate 13 Jig stand 14 Stopper 15 Fixed side 16 Guide bush 17 Base stand 18 Bracket 19 Dog 20 Limit switch 21 Limit switch 301 Arm part 302 pin 303 Link plate 304 pin 305 Push-up rod 306 Spring receiver 307-pin 501 Bolt 502 Abutment part 503 Abutment part 601 Push-up base 602 Nuts 603 Pushers 604 Guide rods 701 Supports 702 Nuts 703 Extrusion rods 704 Nuts 705 Actuating rods 706 Nuts 707 Guide rods 708 Guide bushes 709 Pulling seat 710 spring 801 cylinder 802 piston rod 901 pin 902 link 903 pin 904 link 905 pin 906 adjuster 907 pin 908 locking tool 909 locking tool

Claims (1)

[Scope of utility model registration request] 1. A clamp device mounted on a pallet jig side for holding a work, and a work take-out for unclamping and discharging the work by engaging with the pallet jig transferred to a work unloading position. The clamp device comprises a clamp head portion detachably coupled to the work, a spring, and a pressing force of the spring is transmitted to the clamp head portion to move the clamp head portion to a clamp position of the work. The work take-out device is detachably engaged with the clamp device to move the clamp head part in the unclamp direction, and the work detachable device is attachable to and detachable from the work. And a unclamping mechanism part and a work which are engaged with the work and move in a direction for discharging the work. A single drive unit that drives the payout mechanism unit, and a transmission mechanism unit that moves both the mechanical units simultaneously by a predetermined amount between the drive unit and the unclamp mechanism unit and the work payout mechanism unit. A device for attaching and detaching a pallet jig, characterized in that