JPH0520287U - Terminal crimping device attachment / detachment device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to a terminal crimping device (applicator) attaching / detaching device in a terminal crimping machine that crimps and attaches these terminals to a strip of electric wire while separating the chained terminals one by one, The purpose of this invention is to improve the productivity of the caulking work of terminals with a large number of small quantities by safely and securely exchanging the exchanging operation with a cylinder device that operates a parallel link without using a locking member. According to the present invention, a vertically reciprocating crank mechanism 2 built in an upper portion 1a of a machine frame main body 1, an engaging portion 10a formed on an output shaft 10 of the crank mechanism 2, and the machine frame main body 1 are provided. In the terminal crimping machine provided with the stopper 13 provided in the lower portion 1b of the above, a terminal crimping device 16 provided with the feed mechanism 15 for the chain terminal 14 which is positioned on the stopper 13 and detachably mounted on the lower portion 1b is provided. The locking portion 10a
A movable holding member 31 connected to one end of the lower portion 1b via a pair of parallel links 30 to the base portion 17a of the terminal crimping device 16 and the cylinder device 3
It is pressed by 2 and fixed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for attaching and detaching a terminal crimping device (also referred to as an applicator) in a terminal crimping machine that separates chain-like terminals one by one and crimps and crimps the terminals to a wire strip.

[0002]

[Prior Art]

 In general, a terminal crimping device in a terminal crimping machine that crimps and crimps each terminal to a strip of wire while separating the chained terminals one by one corresponds to the thickness of the covered wire, the size of the terminal and its shape. The terminal feed mechanism and the terminal crimping device that separates the terminals one by one and crimps them are available as a number of units, and the terminal crimping machine supports the thickness of the covered wire, the size of the terminal and its shape. Then, they were replaced with terminal crimping devices equipped with a chain terminal feeding mechanism, which separated the chained terminals one by one, and crimped and crimped the terminals to the wire strip.

On the other hand, the attachment / detachment device of this type of terminal crimping device that has been already proposed is configured as shown in FIGS. 3 to 5.

That is, in FIGS. 3 to 5, a crank mechanism 2 that reciprocates vertically is built in an upper portion 1 a of a machine frame main body 1 having a substantially U shape in the terminal crimping machine. In this crank mechanism 2, a rotary disc 4 is attached to a drive shaft 3, an eccentric pin 5 is attached to the rotary disc 4, and a crank lever 6 is pivotally attached to the eccentric pin 5. The rocking arm rod 7 is connected to one end of the pin 6 by a pin 8, and the base portion of the rocking arm rod 7 is pivotally attached to the upper portion 1a by a pin shaft 9, and the machine frame directly below the pin shaft 9 is connected. The output shaft 10 is fitted through the main body 1 so as to move up and down, and a connecting rod 11 is connected to one end of the crank lever 6 with the pin 8 as a coaxial shaft. The stopper 10a is formed.

On the other hand, a machine base 11 is horizontally provided on the lower portion 1b of the machine frame body 1, and a substrate 12 is laid substantially integrally on the machine base 11. A ruler-shaped stopper 13 is attached to one end of the substrate 12. In addition, a terminal crimping device (applicator) 16 having a feed mechanism 15 for the chain terminal 14 is positioned on the substrate 12 by the stopper 13 so as to be detachably mounted, and is also engaged with the locking portion 10a. It is provided to match.

That is, a base 17a is provided below the main body 17 of the terminal crimping device 16 so as to be engaged with the stopper 13 and positioned, and a guide rail 18 is provided on the base 17a. A guide groove is formed in the longitudinal direction and is horizontally provided so as to guide the chain terminal 14. A lower die (anvil portion) 19 is fixedly attached to the inner end portion of the guide rail 18, and a pair of left and right guide members 20 are provided on the main body 17 directly above the anvil portion 19. Are installed vertically. Further, an upper mold 21 is slidably provided on both of the guide members 20 so as to reciprocate in the vertical direction, and an engaging portion 21 a is provided on the upper part of the upper mold 21. The engaging portion 10a of the output shaft 10 is provided so as to be disengageable from the horizontal direction. Furthermore, an operating arm rod 22 is extended laterally on the upper part of the upper die 21, and a roller 22a is attached to one end of the operating arm rod 22. A swing arm rod 23 is pivotally attached to the main body 17 in which the operating arm rod 22 is located so as to be swingable by a support shaft 24. In the middle of the swing arm rod 23, a cam groove is formed. 23a is formed so as to fit the roller 22a, and the feed claw 25 of the feed mechanism 15 is pivotally attached to the lower part of the swing arm rod 23 by a pin shaft 26 and is moved downward by a spring. The chain terminal 14 is biased to feed the chain terminal 14 by one pitch.

On the other hand, a channel-shaped hook member 27 is attached to one side of the lower portion 1b of the machine frame main body 1, and a handle 28 is attached to one side of the base 17a of the main body 17 and the substrate 12. The lock member 29 has a pressing member 29a for pressing one side of the machine base 11 and the base 17a via a plurality of disc springs 29b, and a lock portion 29c attached to the lock member 29 is disengaged from the hook member 27. Is provided.

Therefore, in the above-described terminal crimping device, when the chain-like terminals 14 are separated one by one and the terminals are crimped to the strip Wa of the electric wire W and caulked, when the drive shaft 3 of the crank mechanism 2 is rotated. Since the rotary disc 4 pivotally mounted on the drive shaft 3 rotates, the eccentric pin 5 of the rotary disc 4 cranks the crank lever 6 to move it through the swing arm rod 7 and the connecting rod 11. Since the output shaft 10 reciprocates in the vertical direction, the upper mold 21 connected to the locking portion 10a of the output shaft 10 slides in the vertical direction and cooperates with the lower mold 19 to form a terminal. At the same time that the bridge is cut, the terminal is crimped and fixed to the strip Wa of the electric wire W, and the roller 22a of the operating arm rod 22 moves up and down in the cam groove 23a. Support shaft 2 4 Rock around. Then, the feed claw 25 of the swing arm rod 23 swings around the pin shaft 26 and feeds the chain terminal 14 by one pitch.

On the other hand, in the above-described terminal crimping device attaching / detaching device, when the terminal crimping device 16 made up of a large number of units is replaced according to the thickness of the covered electric wire and the size and shape of the terminal, the handle 28 is used. Since the lock portion 29c of the lock member 29 is disengaged from the hook member 27 by rotating the lock member 29 by about 90 degrees by hand, the lock member 29 is moved to the machine base 11 and the base 17a as shown in FIG. Then, the terminal crimping device 16 provided with the feeding mechanism 15 is pulled to the left by hand to detach from the machine base 11 and the locking portion 10a, After that, the terminal crimping device 16 having another feeding mechanism 15 is replaced.

[0010]

[Problems to be solved by the device]

 However, the device for attaching and detaching the terminal crimping device described above detaches the lock portion 29c of the lock member 29 from the hook member 27 by rotating the handle 28 by hand, so that the lock member 29 is connected to the machine base 11. Since the terminal 17 is detached from one side of the base 17a, there is a possibility that the lock member 29 may be lost or accidentally broken when the terminal crimping device 16 including the feeding mechanism 15 is replaced. Not only that, but the handling operation is also troublesome, and it is difficult to improve the productivity of the terminal crimping work with a small amount and variety of products.

According to the present invention, in order to solve the above-mentioned problems, when a terminal crimping device having a feed mechanism is replaced, the replacement operation can be replaced by a cylinder device that operates a parallel link without using a locking member. Thus, it is an object of the present invention to provide a terminal crimping device attaching / detaching device for improving productivity by caulking electric wire terminals in a variety of small quantities.

[0012]

[Means for Solving the Problems]

 The present invention comprises a crank mechanism built in the upper part of the machine frame body for vertical reciprocating motion, a locking part formed on the output shaft of the crank mechanism, and a stopper provided on the lower part of the machine frame body. In the terminal crimping machine provided, a terminal crimping device equipped with a chain terminal feed mechanism that is removably mounted on the lower portion and positioned on the stopper is provided so as to engage with the locking portion, and one end of the lower portion is provided. The movable holding member, which is connected to the section via a pair of parallel links, is fixed to the base portion of the terminal crimping device by pressing with a cylinder device.

[0013]

[Action]

 According to the present invention, when the terminal crimping device having the feed mechanism is replaced, the movable holding member connected to the cylinder device is moved outward through the pair of parallel links by releasing the pressing of the cylinder device. The terminal crimping device from the traveling path of the base, and then by pulling out the terminal crimping device to the side, the terminal crimping device is disengaged from the machine base and the locking portion, and then, It can be exchanged with a terminal crimping device equipped with another chain terminal feed mechanism, and can be replaced by a cylinder device that operates parallel links without using a locking member. It is intended to improve the productivity by crimping the terminals.

[0014]

【Example】

 Hereinafter, the present invention will be described with reference to the illustrated embodiments.

The present invention will be described by giving the same reference numerals to the same components as those of the above-described specific example.

In FIGS. 1 and 2, reference numeral 1 denotes a substantially U-shaped machine frame main body of a terminal crimping machine, and a crank mechanism 2 that reciprocates vertically is built in an upper portion 1 a of the machine frame main body 1. Has been done. In this crank mechanism 2, a rotary disc 4 is attached to a drive shaft 3, an eccentric pin 5 is attached to the rotary disc 4, and a crank lever 6 is pivotally attached to the eccentric pin 5. The swing arm rod 7 is connected to one end by a pin 8, and the base of the swing arm rod 7 is pivotally attached to the upper portion 1a by a pin shaft 9, and the machine frame main body 1 immediately below the pin shaft 9 is attached. The output shaft 10 is vertically inserted through and fitted to the output shaft 10, and a connecting rod 11 is connected to one end of the crank lever 6 by using the pin 8 as a coaxial shaft and locked to the output shaft 10. The part 10a is formed.

On the other hand, a machine base 11 is provided on the lower portion 1b of the machine frame body 1, and a board 12 is laid substantially integrally on the machine base 11. A ruler-shaped stopper 13 is horizontally attached to one end of the board 12, and a terminal crimping device (applicator) 16 having a feed mechanism 15 for a chain terminal 14 is provided on the board 12. The stopper 13 is positioned so that it can be removably mounted and can be engaged with the locking portion 10a.

That is, a base 17a is provided below the main body 17 of the terminal crimping device 16 so as to engage with the stopper 13, and a guide rail 18 is provided in the guide groove. Is formed in the longitudinal direction and is horizontally provided so as to guide the chain terminal 14. A lower die (anvil portion) 19 is fixedly attached to the inner end portion of the guide rail 18, and the pair of left and right guide members 20 is attached to the main body 17 directly above the lower die 19. Is provided vertically, and an upper die 21 is slidably provided on both of the guide members 20 so as to reciprocate in the vertical direction. Further, an engaging portion 21a is provided on the upper mold 21 so as to be engageable with and disengageable from the locking portion 10a of the output shaft 10 in the horizontal direction. The operating arm rod 22 is extended to the side. Furthermore, a roller 22a is attached to one end of the operating arm rod 22, and a swing arm rod 23 is swingable by a support shaft 24 on the main body 17 on which the operating arm rod 22 is located. Is pivotally attached to. In the middle of the swing arm rod 23, a cam groove 23a is formed so as to fit the roller 22a, and at the lower part of the swing arm rod 23, a feed claw of the feed mechanism 15 is provided. 25 is pivotally attached by a pin shaft 26 and is urged downward by a spring to feed the chain terminal 14 by one pitch.

On the other hand, a bracket 1c is attached to one side of the lower portion 1b of the machine frame body 1, and a pair of parallel links 30 are connected to the bracket 1c by respective pins. A movable holding member 31 is swingably connected to the upper ends of the parallel links 30 by pins so as to press the base 17a against the stopper 13. One end of the movable holding member 31 is connected to the movable holding member 31. An output shaft 32a of a cylinder device 32 such as an air cylinder device is connected to the portion. Further, the base portion of the cylinder device 32 is pivotally attached to the mounting portion 1d of the machine frame body 1 by a pin shaft 33, and the cylinder device 32 pushes the base 17a to the stopper 13 via the movable holding member 31. It is fixed to attach.

Therefore, when replacing the terminal crimping device 16 having the feeding mechanism 15, the cylinder device 32 is driven and the output shaft 32a of the cylinder device 32 is released from being pressed. While moving the connected movable holding member 31 outward through the pair of parallel links 30, it is retracted from the traveling path of the base 17a of the terminal crimping device 16 (see FIG. 2). Then, the terminal crimping device 16 is pulled out to the side by hand to separate the terminal crimping device 16 from the machine base 12 and the locking portion 10a. After that, another terminal crimping device 16 having a feed mechanism 15 for the chain terminal 14 is replaced.

Accordingly, the present invention enables the exchange operation to be performed by the cylinder device 32 that operates the parallel link 30 without using the lock member of this type that has already been proposed. It is intended to improve the productivity of caulking work.

[0022]

[Effect of the device]

 As described above, according to the present invention, the vertically reciprocating crank mechanism built in the upper portion of the machine frame body, the locking portion formed on the output shaft of the crank mechanism, and the lower portion of the machine frame body are provided. In a terminal crimping machine provided with a substrate having a stopper provided, a terminal crimping device having a chain terminal feeding mechanism which is removably mounted on the lower portion by positioning to the stopper is engaged with the locking portion. The movable holding member, which is provided so as to fit together and is connected to one end of the lower portion via a pair of parallel links, is fixed to the base of the terminal crimping device by pressing with a cylinder device, without using a locking member. The excellent effect that not only can the exchange operation be performed safely and reliably with the cylinder device that operates the parallel link, but also that the productivity of the caulking work of the terminals can be improved due to a large number of small quantities of products. A.

[Brief description of drawings]

FIG. 1 is a front view in which a part of a detaching device of a terminal crimping device of the present invention is broken away.

FIG. 2 is a view for explaining the operation of the present invention.

FIG. 3 is a front view in which a part of an attachment / detachment device of a terminal crimping device that has been already proposed is broken away.

FIG. 4 is a perspective view showing a main part of an attachment / detachment device of a terminal crimping device that has already been proposed.

5A and 5B are views for explaining the operation of an attachment / detachment device for a terminal crimping device that has already been proposed.

[Explanation of symbols]

 1 Machine frame main body 2 Crank mechanism 10 Output shaft 13 Stopper 14 Chain terminal 15 Feeding mechanism 16 Terminal crimping device 30 Parallel link 31 Movable holding member 32 Cylinder device

Claims (1)

[Scope of utility model registration request] 1. A crank mechanism built in an upper portion of a machine frame body for reciprocating vertically, a locking portion formed on an output shaft of the crank mechanism, and a stopper provided at a lower portion of the machine frame body. In the terminal crimping machine, a terminal crimping device having a chain terminal feed mechanism, which is positioned on the lower portion to be removably mounted on the stopper and is engaged with the locking portion, and the lower portion. And a movable holding member that is connected to one end of the terminal through a pair of parallel links and is fixed to the base of the terminal crimping device by pressing with a cylinder device.