JPH0653035U - Automatic caulking device - Google Patents

Abstract

(57) [Summary] [Purpose] Caulking multiple types of fastening devices with the same equipment. [Structure] A plurality of clip caulking jigs 5 respectively stocked on a caulking jig stock base 6 are connected to an upper tool changer 7 connected to a wrist portion 4a of a robot hand 4, and a lower tool changer 10 is detachably connected to the upper tool changer 7. And a positioning plate 13 which is connected to the lower tool changer 10 and is placed on the caulking jig stock base 6, and a clipper 1 which presses and bends the Heartco clip C to transform it into a locking form.
1 and a clip feeder 14 on which a large number of Heartco clips C to be supplied to the clipper 11 are placed. Of the clip caulking jigs 5 stocked on the caulking jig stock base 6, the Heartco to be used The clip caulking jig 5 that conforms to the specifications of the clip C is attached to the wrist portion 4a, and the caulking work is repeated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automatic crimping device applied when two members are joined by crimping a fastening tool such as a Heartco clip used for fastening a seat spring of an automobile seat to a seat frame.

[0002]

[Prior art]

 When automatically locking each S-shaped seat spring of an automobile seat to a seat frame by a heart clip, a heart clip is conventionally attached to a clipper 50 connected to a horizontally movable slider 51 as shown in FIG. The supplied heart co-clip is caulked by the clipper 50 to lock the end of the seat spring 52 to the seat frame 53 by the heart co-clip, and this locking operation is repeated for each intermittent movement of the clipper 50 and the slider 51. Was.

[0003]

[Problems to be solved by the device]

 Since multiple types of heart co-clips with different specifications are used as the heart co-clip for connecting the seat spring 53 to the seat frame 53, it is necessary to select the model of the clipper 50 according to the specification of the heart co-clip. However, there is a problem that the equipment cost becomes high because the same number of caulking devices as the number of types of heart co-clip are required. The present invention aims to solve the above problems.

[0004]

[Means for Solving the Problems]

 The automatic crimping device of the present invention has a lower tool changer detachably connected to the upper tool changer in the vicinity of a robot having a robot hand having an upper tool changer connected to the wrist, and is connected to the lower tool changer. Aligning the positioning plate that is positioned and placed on the caulking jig stock base, the clipper that bends the locking tool to transform it into a locking mode, and the multiple locking tools that are supplied to this clipper. And a feeder that is placed in a state, and has a configuration in which a plurality of caulking jigs that are selectively attached to the wrist according to the specifications of the locking tool are arranged.

[0005]

[Action]

 The lower tool changer that is detachably connected to the upper tool changer that is connected to the wrist of the robot hand, the positioning plate that is connected to this lower tool changer and that is placed on the caulking jig stock base, It has a clipper that pushes and bends the tool to transform it into a locking form, and a feeder on which a large number of locking tools supplied to this clipper are placed in an aligned state. Of the multiple caulking jigs, select the caulking jig that fits the specifications of the locking tool to be used, attach it to the wrist, and repeat the caulking work to crimp the locking tool with the caulking jig. .

[0006]

[Effect of device]

 Since the present invention is configured as described above, when a plurality of types of locking devices having different specifications are used, the locking device of each specification is adapted to each by the same equipment, and is caulked by the caulking jig. The locking member can be accurately locked, the equipment space required for the crimping work can be reduced to reduce the equipment cost, and the number of transportations can be reduced to improve the productivity of the crimping process.

[0007]

【Example】

 Next, one embodiment of the present invention will be described with reference to FIGS. The robot 1 of the automatic caulking device is installed on the base 3 so as to face the seat frame F and the turntable 15 on which the S-shaped seat spring S connected to the seat frame F is placed and is installed in the safety fence 2. A robot hand 4 which is loaded and cantilevered, moved back and forth, and tilted and supported in a cantilevered manner is connected to the upper end of the main body.

A disc-shaped upper tool changer 7 is rotatably connected to a wrist portion 4a at the tip of the robot hand 4, and the upper tool changer 7 includes a pair of positioning pins 8 protruding downward in parallel. And a pair of clamp claws 9 which are arranged in parallel between the two positioning pins 8 and whose tilt is controlled inward and outward, and the lower end of each of the clamp claws 9 is formed with a hooking portion 9a bent outward. Has been done.

A pair of caulking jig stock bases 6 are arranged in parallel on a plurality of stocker bases 16 arranged side by side on the base 3 in a space where the wrist portion 4a of the robot band 4 can move. Positioning pins 6a projecting upward are formed at the upper ends of the respective caulking jig stock bases 6.

A plurality of clip crimps provided for crimping a heart-shaped clip (fastening tool) C having a C-shaped cross-sectional shape into a cylindrical shape to fasten the end portion of the seat spring S to the seat frame F. Of the jigs 5, a clip crimping jig 5 that conforms to the specifications of the supplied Heartco clip C is selectively attached to the wrist 4a of the robot band 4 via the upper tool changer 7, and other hearts are attached. The clip caulking jigs 5 that meet the specifications of the co-clip C are stocked on the caulking jig stock table 6.

At the upper end of each clip caulking jig 5, there is an insertion opening 10 a into which both clamp claws 9 of the upper tool changer 7 can be inserted, and a lower tool changer 10 which is detachably connected to the upper tool changer 7 is arranged. The lower tool changer 10 has a pair of pin holes 10b through which the positioning pins 8 of the upper tool changer 7 are inserted and removed.

The wrist 4a of the robot hand 4 is lowered, both positioning pins 8 of the upper tool changer 7 are inserted into both pin holes 10b of the lower tool changer 10, and both clamp claws 9 are inserted through the lower tool changer 10. When both the clamp changers 7 and 10 are in contact with each other and both clamp claws 9 tilt outward, the catching parts 9a of the clamp claws 9 engage the lower end edges of the insertion openings 10a. When stopped, the lower tool changer 10 is connected to the upper tool changer 7.

Positioned on the rear side of the lower tool changer 10 is a positioning plate 13 which is connected to the lower tool changer 10 and which is positioned and placed on the pair of caulking jig stock bases 6. At both ends of the positioning plate 13, pin holes 13a through which the positioning pins 6a of the caulking jig stock base 6 are inserted and removed are formed respectively, and the lower tool changer 10 interposes the positioning plates 13 and the caulking jig stock base 6 Is set and set.

Below the lower tool changer 10, there is a clipper 11 that pushes and bends the heart co-clip C from around the end of the seat spring S to join the seat frame to deform it into a caulking shape with a cylindrical cross section. It is lined up.

A trough-shaped clip feeder 14 is installed behind the clipper 11 in a curved state upward and rearward, and a front end of the clip feeder 14 is fixed to a rear side surface of the clipper 11. One side plate of the clip feeder 14 is installed. A pin 14a is provided in the vicinity of the rear end of the clip feeder 14, and a large number of heart co-clippers C supplied to the clipper 11 are mounted on the bottom plate of the clip feeder 14 in an aligned state.

Above the stocker base 16 and behind the caulking jig stock base 6, a proximity switch 18 for detecting the remaining amount of the heartco clip C on the clip feeder 14, and a detection signal of the proximity switch 18 are used. An operating air cylinder 20 is installed.

When the number of heart clips on the clip feeder 14 decreases below a predetermined number, the proximity switch 18 sends a detection signal to operate the air cylinder 20, and the trigger 19 is driven by the air cylinder 20 to move the clip feeder. 14 is pulled down by the trigger 19 via the pin 14a, and the clipper 11 is ready to be caulked.

Behind each pair of caulking jig stock bases 6, a plurality of Heartco clips C to be replenished on the clip feeder 14 are placed in an aligned state, and clip supply rails 21 are inclined downward in the forward direction. And a clip insertion portion 21a is formed at the rear end thereof.

Below the clip supply rail 21, a photoelectric switch 26 for full amount detection that transmits a detection signal when the number of heart coclips on the clip supply rail 21 exceeds a specified number, and a clip supply rail 21 A photoelectric switch 27 for detecting the remaining amount for transmitting a detection signal when the number of Heartco clips on 21 becomes less than a predetermined number is attached. Further, a patrol light 28 that is turned on when the remaining clip amount is insufficient is attached to the safety shelf 2.

A clip replenishing member 23, which is driven by an air cylinder 24 and swings like a saw, is installed at the front of the clip replenishing rail 21. The clip replenishing member 23 is provided at the front and rear ends of the clip replenishing member 23. Shutters 23a and 23b, which rise and fall in opposite directions by the rocking motion of 23, block and open the clip passage on the clip supply rail 21, respectively, are formed to project.

When the seat frame F and a large number of seat springs S are set on the turntable 15 during the automatic joining work of the seat spring S and the seat frame F, the seat spring S and the seat frame F are joined together. A clip crimping jig 5 conforming to the specifications of the heart co-clip C is selectively taken out from the crimping jig stock base 6 and attached to the wrist 4a of the robot hand 4 via the upper tool changer 7.

In this state, the heart co-clip C is pressed into a cylindrical shape by the clipper 11 of the clip caulking jig 5 to be deformed into a caulking shape, and the caulked heart co-clip C causes the end portion of the seat spring S to be seated. The locking operation for locking to F is repeated each time the robot hand 4 moves, and each seat spring S is coupled to the seat frame F by the heart clip C.

When the Heartco clip C is switched to the Heartco clip C having a different specification, the clip caulking jig 5 conforming to the specification is replaced and attached to the wrist portion 4 a of the robot hand 4.

Next, the operation and effect of the embodiment having the above-mentioned configuration will be described. In this example, in the vicinity of the robot 1 having the robot hand 4 in which the upper tool changer 7 is connected to the wrist 4a, a lower tool changer 10 detachably coupled to the upper tool changer 7 and a lower tool changer 10 are coupled. And the positioning plate 13 which is positioned and placed on the caulking jig stock base 6, the clipper 11 which presses and bends the heart clip C to transform it into a locking form, and a large number of pieces supplied to the clipper 11. It has a clip feeder 14 on which the Heartco clips C are placed in an aligned state, and a plurality of clip caulking jigs 5 which are selectively attached to the wrist 4A according to the specifications of the Heartco clips C are attached. It is arranged.

Therefore, when a plurality of types of Heartco clips C having different specifications are used to connect the seat spring S to the seat frame F, the Heartco clips C of each specification can be connected to each of the Heartco clips C by the same equipment. The seat staking spring S can be precisely connected to the seat frame F by staking with the clip staking jig 5 that adapts to each specification, and the equipment space required for the staking operation of the clip can be reduced to reduce the equipment cost. Further, the number of times of transportation of the seat frame F and the seat spring can be reduced to improve the productivity in the clip crimping process.

When a C-shaped hog ring is used instead of the Heartco clip C as a connecting tool, a hoggling gun that pushes and deforms the hog ring is used instead of the clipper 11, and the clip feeder 14 and the clip feeder are used. If the shape of the supply rail 21 is a round bar shape having an outer diameter that can be inserted into the hog ring and the hog ring can slide, the hog ring can be applied to the automatic caulking device in the same manner as the Heartco clip C. Also, by using a clipper, a clip feeder, and a clip supply rail that conform to the shape of the other fastening device, the other fastening device can be applied to the automatic crimping device.

[Brief description of drawings]

1 is a perspective view of an automatic caulking device according to an embodiment of the present invention.

FIG. 2 is likewise an enlarged perspective view of a main part.

FIG. 3 is likewise a perspective view of a clip crimping jig and a clip supply mechanism.

FIG. 4 is a perspective view showing a state in which a seat spring is locked to a seat frame by a heart clip.

FIG. 5 is a perspective view of a conventional automatic caulking device.

[Explanation of symbols]

 1 robot 4 robot hand 4a wrist 5 clip crimping jig 6 crimping jig stock stand 7 upper tool changer 10 lower tool changer 11 clipper 13 positioning plate 14 clip feeder C heartco clip (locking tool)

Claims (1)

[Scope of utility model registration request] 1. A lower tool changer detachably connected to the upper tool changer in the vicinity of a robot having a robot hand having an upper tool changer connected to a wrist portion, and a lower tool changer connected to the lower tool changer for swaging. A positioning plate that is positioned and placed on the tool stock table, a clipper that presses and bends the locking tool to transform it into a locking mode, and a large number of locking tools that are supplied to this clipper are mounted in an aligned state. An automatic crimping device having a plurality of crimping jigs selectively attached to the wrist according to the specifications of the locking tool.