JPH0629079U - Terminal crimping device - Google Patents

Abstract

(57) [Abstract] [Object] The present invention relates to a bridge cutting device for chain terminals in a terminal crimping device for crimping a terminal to a strip of electric wire, which prevents the terminal from being bent upward by a part of a shear blade, It is intended to improve quality. According to the present invention, in a terminal crimping device for crimping a terminal to a strip, an elevating and lowering crimper 7 is movably provided directly above an anvil 2 in the terminal crimping device, and a pair of slide strippers 10 are provided at the rear of the elevating and lowering crimper 7. Three
1 is provided, and the shear blade 32 is interposed between both slide strippers by being biased downward by a spring 32a so as not to fall off, and the terminal bridge cutter 3 is attached to the anvil 2 and the shear blade 32. It is provided so as to jointly cut the bridge of terminals.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to, for example, a terminal crimping device for crimping a terminal to a wire strip, and more particularly to a bridge cutting device for chain terminals (also referred to as continuous terminals) in the terminal crimping device.

[0002]

[Prior art]

 The terminal crimping device of this type which has been already proposed is configured as shown in FIGS. 4 to 6.

That is, in FIGS. 4 to 6, an anvil 2 is installed on a machine base 1 a of a machine frame 1 of a terminal crimping device, and a bridge (also called a carrier) of a terminal t is provided at a rear portion of the anvil 2. ) A terminal bridge cutter 3 for cutting t1 is provided. A guide rail 4 for guiding the chain terminal T is provided on the machine base 1a near the terminal bridge cutter 3 so as not to be lifted by the holding leaf spring 4a. Is horizontally provided so that the terminal floating prevention member 5 prevents the terminal t that is crimped from rising. Further, a ram member 6 is provided on the upper part of the machine frame 1 located right above the anvil 2 so as to be able to move up and down by a crank mechanism (not shown), and on the lower part of the ram member 6, an elevating crimper 7 is substantially provided. It is integrated with the and can be raised and lowered. Further, on the back plate 7a at the rear part of the elevating and lowering crimper 7, a first spacer 8, a shear blade 9, a slide stripper 10 having a coil spring 10a and another slide stripper 11, a second spacer 12, a wire crimper 13, a crimp A drop spring 14 for dropping a terminal, an insulation crimper 15 and a set plate 16 are arranged in order and are attached by a fixing screw 17 in an exchangeable manner. Further, a cam roller 18 is axially supported on one side of the upper part of the elevating and lowering crimper 7, and the cam roller 18 is cam groove of a rocking rod 20 pivotally attached to the machine frame 1 by a supporting shaft 19 so as to be rockable. It is fitted to 20a. Further, a feed claw 21 is urged downward by a spring 22 and pivotally attached by a pin 21b to a lower portion of the swing rod 20, and a tip 21a of the feed claw 21 is interposed by a guide spring plate 23. The chain terminals T can be intermittently transferred forward by one pitch in association with the barrel of the terminal t.

Therefore, as shown in FIG. 4, when the terminal t is crimped onto the strip a1 of the wire a to crimp the barrel t1 to cut the bridge t1, the above-mentioned terminal crimping device is integrated with the ram member 6 as shown in FIG. At the same time when the elevating and lowering crimper 7 descends, the cam roller 18 descends in the cam groove 20a. Therefore, the swing rod 20 provided with the cam groove 20a rotates right about the support shaft 19 as a fulcrum. The claw 21 intermittently transfers the chain terminals T forward by one pitch, and cooperates with the wire crimper 13 and the insulation crimper 15 of the elevating and lowering crimper 7 and the anvil 2 to connect the barrel of the terminal t to the electric wire a. Simultaneously with crimping, the terminal bridge cutter 3 and the shear blade 9 cut the bridge t1 of the terminal t to separate the terminal t from the chained terminal T. The electric wire a to which the terminal t is crimped is discharged to the outside of the machine, and the elevating crimper 7 rises to return to the original state.

[0005]

[Problems to be solved by the device]

 However, in the above-described terminal crimping device, as shown in FIGS. 6 (A) and 6 (B), the terminal t crimped to the strip a1 extends in the front-rear direction as a whole, so that the wire crimper 13 still presses the terminal t. Therefore, when the shear blade 9 rises, a part of the shear blade 9 is pulled up while being locked at the tail end of the terminal t. May be bent upwards.

The present invention has been made in view of the above circumstances, and even if the terminals crimped to the strip extend in the front-rear direction as a whole, the rising time (timing) of the shear blade and the wire crimper is increased. A terminal crimping device that releases the crimping state by the wire crimper by moving upward and prevents the terminal from being bent upward by a part of the shear blade to improve the quality is provided. That is the purpose.

[0007]

[Means for Solving the Problems]

 The present invention provides a terminal crimping device for crimping a terminal to a strip, in which an elevating crimper is provided directly above an anvil in the terminal crimping device, and a pair of slide strippers are provided at the rear part of the elevating crimper. Insert the shearing blade between the slide strippers by biasing it downward with a spring so that it does not fall out, and cut the bridge of the terminal on the anvil together with the shearing blade. It is a thing.

[0008]

[Action]

 The present invention, when the terminal bridge is cut to separate the terminal from the chain terminal and the shear blade is raised to return to the original state, the terminal is caused by vertical play by the shear blade urged downward by the spring. Even if the whole body extends in the front-rear direction, the shear blade and the wire crimper are staggered so that the crimp terminal is in a free state, and the shear blade is partially bent to bend the terminal upward. This is to prevent and improve quality.

[0009]

【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 constituent members as those of the above-described specific example. 1 to 3, reference numeral 1 denotes a machine frame in the terminal crimping device, an anvil 2 is installed on a machine base 1a of the machine frame 1, and a terminal t is provided at a rear portion of the anvil 2. There is provided a terminal bridge cutter 3 for cutting the bridge t1. Further, on the machine base 1a in the vicinity of the terminal bridge cutter 3, a guide rail 4 including a chain terminal T is provided so as not to be lifted by the pressing leaf spring 4a, and the upper part of the continuous terminal T is provided. The terminal floating prevention member 5 is horizontally provided at the terminal so as to prevent the crimped terminal t from floating. Further, a ram member 6 is provided on the upper part of the machine frame 1 located right above the anvil 2 so as to be able to move up and down by a crank mechanism (not shown), and on the lower part of the ram member 6, an elevating crimper 7 is substantially provided. It is integrated with the and can be moved up and down. Further, on the rear plate 7a at the rear part of the elevating and lowering crimper 7, a first spacer 30, a slide stripper 31, a shear blade 32 biased downward by a coil spring 32a, a slide stripper 10 having a coil spring 10a, and a first stripper 10a. The two spacers 12, the wire crimper 13, the drop lugs 14 for dropping the crimp terminals, the insulation crimper 15, and the set plate 16 are arranged in this order and are exchangeably attached by the fixing screws 17.

In particular, the shear blade 32 is interposed between the first spacer 30 and the slide stripper 10 and is biased downward by a coil spring 32 a. Has a vertical play in its long hole 32b, and even if the crimped terminal a extends in the front-back direction, the shear blade 32 and the wire crimper 13 are staggered by a rising time and the shear blade 32 is moved to the wire cleaner. The crimp terminal a is held in a free state by ascending after 13 and the bending of the terminal a upward by a part of the shear blade 32 is eliminated (FIGS. 3A and 3B). reference).

On the other hand, a cam roller 18 is pivotally supported on one side of the upper portion of the elevating and lowering crimper 7, and the cam roller 18 is pivotally attached to the machine frame 1 by a pivot 19 so as to be pivotable. It is fitted in the 0 cam groove 20a. Further, a feed pawl 21 is urged downward by a spring 22 and pivotally attached to a lower portion of the swing rod 20 by a pin 21b, and a tip 21a of the feed pawl 21 is guided by a guide spring plate 23. By engaging with the barrel of the terminal t, the chain terminals T can be intermittently transferred forward by one pitch.

The operation of the present invention will be described below. Therefore, as shown in FIG. 1, when the barrel of the terminal t is crimped to the strip a1 of the electric wire a and the bridge t1 is cut, the elevating crimper 7 integrated with the ram member 6 is lowered at the same time. Since the cam roller 18 descends in the cam groove 20a, the swing rod 20 of the cam groove 20a turns right about the support shaft 19 as a fulcrum, so that the feed claw 21 of the swing rod 20 moves the chain terminal T to 1 The terminal t is intermittently transferred forward by pitch, and the terminal t is crimped to the electric wire a in cooperation with the wire crimper 13 of the elevating crimper 7, the insulation crimper 15, and the anvil 2, and at the same time, the terminal bridge cutter. 3 and the shear blade 32, the bridge t1 of the terminal t is cut to separate the terminal t from the chain terminal T, and then the wire a crimped to the terminal t is discharged to the outside of the machine. Rutotomoni the lifting crimper 7 is returned to rise to its original state. In particular, since the shear blade 32 is provided so as to be urged downward by the coil spring 32a, the shear blade 32 provides vertical play, and the crimped terminal a greatly extends in the front-rear direction. However, since the shear blade 32 and the wire cleaner 13 are staggered in the rising time, the crimp terminal a becomes free by raising the shear blade 32 by the amount of vertical play. A part of the shear blade 32 described above eliminates the upward bending of the terminal a (see FIGS. 3A and 3B).

[0013]

[Effect of device]

 As described above, the present invention is a terminal crimping device for crimping a terminal to a strip, in which a lifting crimper is provided directly above the anvil in the terminal crimping device and a pair of slide strippers are arranged at the rear of the lifting crimper. The shear blade is inserted between the two sliding strippers by urging it downward with a spring so that it does not fall out, and the terminal bridge cutter is attached to the anvil together with the shear blade to connect the terminal bridge. Since it is provided so as to be cut, not only it is possible to prevent the terminal from being bent upward by a part of the shear blade, but also it is possible to improve the quality and improve the production efficiency.

[Brief description of drawings]

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

FIG. 2 is an exploded perspective view showing a main part of the present invention.

FIG. 3 is a diagram for explaining the operation of the present invention.

FIG. 4 is a front view in which a part of the already proposed terminal crimping device is broken.

FIG. 5 is an exploded perspective view showing a main part of a terminal crimping device that has already been proposed.

6A to 6C are views for explaining the operation of the already proposed terminal crimping device.

[Explanation of symbols]

 1 Machine frame 2 Anvil 6 Ram member 7 Lifting crimper 10, 31 Slide stripper 32 Shear blade

Claims (1)

[Scope of utility model registration request] 1. A terminal crimping device for crimping a terminal to a strip, comprising an elevating and lowering crimper provided directly above an anvil in the terminal crimping device, and a pair of slide strippers arranged at a rear portion of the elevating and lowering crimper. , A shear blade interposed by a spring urged downward so as not to fall between the slide strippers, and the anvil provided so as to cut the bridge of the terminal in cooperation with the shear blade. A terminal crimping device comprising a terminal bridge cutter.