CN106785783B

CN106785783B - Crimping mechanism

Info

Publication number: CN106785783B
Application number: CN201710020767.4A
Authority: CN
Inventors: 李普天; 蔡龙清; 陈明峰; 陈启耀
Original assignee: Xiamen Hiprecise Technology Co ltd
Current assignee: Xiamen Hiprecise Technology Co ltd
Priority date: 2017-01-12
Filing date: 2017-01-12
Publication date: 2022-07-22
Anticipated expiration: 2037-01-12
Also published as: CN106785783A

Abstract

The invention discloses a crimping mechanism, which comprises a first crimping arm and a second crimping arm, wherein the middle parts of the first crimping arm and the second crimping arm are mutually pivoted through a pivot, a first jaw is arranged at the upper end of the first crimping arm, and two jaws are arranged at the upper end of the second crimping arm, and the crimping mechanism is characterized in that: the first compression joint arm is pivoted with a first connecting rod between the tail end and the middle pivot point, the second compression joint arm is pivoted with a second connecting rod between the tail end and the middle pivot point, the first connecting rod and one tail end of the second connecting rod are both pivoted on a sliding block, the sliding block is connected to a sliding groove in a sliding mode, a power device for driving the sliding block to slide on the sliding groove is fixed on the sliding groove, and the lower end of the first compression joint arm and the lower end of the second compression joint arm can be externally connected with compression joint power. This crimping mechanism can accomplish pencil crimping terminal automatically, need not to rely on manual operation, simple structure, and convenient to use is applicable in automation equipment.

Description

Crimping mechanism

Technical Field

The invention relates to wire harness processing equipment, in particular to a crimping mechanism for crimping a terminal and a wire harness into a whole.

Background

The general structure of crimping pliers comprises a first plier arm and a second plier arm, the middle parts of the first plier arm and the second plier arm are hinged together, the upper ends of the first plier arm and the second plier arm are respectively provided with a first jaw and a second jaw, the first jaw and the second jaw form a crimping part, and the lower ends of the first plier arm and the second plier arm are respectively hinged with a first handle and a second handle.

In the process of processing the wire harness, the terminal can be crimped on the wire harness by the crimping pliers, the crimping pliers are simple in structure, practical and convenient, and the crimping pliers need to be manually operated to complete the crimping of the wire harness terminal when in crimping. However, the existing wire harness processing method usually uses automation equipment to automatically process the wire harness, and the crimping pliers are applied to the automation wire harness processing equipment and have the following defects: the crimping pliers cannot pre-clamp the terminal, so that the terminal after the wire harness is crimped deviates; in addition, when external force is applied to the crimping pliers for crimping, whether the clamping force for clamping the terminal is reasonable or not cannot be guaranteed, the clamping force is too small, the terminal and the wire harness are not pressed compactly easily, the clamping force is too large, the terminal is damaged easily by clamping, and the wire harness crimping pliers are not suitable for automation equipment for wire harness machining.

Disclosure of Invention

Therefore, in order to solve the above problems, the present invention provides a crimping mechanism, which has a simple structure, can be used in an automation device for processing a wire harness, and realizes automated crimping of a wire terminal and the wire harness into a whole.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a crimping mechanism, includes first crimping arm and the second crimping arm of middle part through a pivot and mutual pin joint, the upper end of first crimping arm is equipped with first keeping silent, the upper end of second crimping arm is equipped with two and keeps silent, first crimping arm pin joint has first connecting rod between terminal and middle part pin joint point, the pin joint of second crimping arm has the second connecting rod between terminal and middle part pin joint point, first connecting rod with a terminal all pin joint on a slider of second connecting rod, the slider cunning is on a spout, be fixed with a drive on the spout the slider is in gliding power device on the spout, first crimping arm with the lower extreme of second crimping arm can external crimping power. This scheme passes through power device drive slider and slides on the spout, and the slider drives first connecting rod and second connecting rod and does to open or draw in the activity in sliding to realize that the jaw of crimping arm upper end receives or presss from both sides tight terminal in advance, the external crimping power of first crimping arm and the lower extreme of second crimping arm, thereby produce the effort to the crimping arm, further realize as an organic whole with pencil and terminal crimping.

Preferably, the ends of the first and second crimping arms are hinged to a roller, and external crimping power is input from the roller.

Preferably, the power device is an air cylinder, the air cylinder is arranged below the sliding block, and a piston rod on the air cylinder is connected with the lower end of the sliding block.

Preferably, a push rod is sleeved on the piston rod, the push rod penetrates through the middle of the sliding block, a blocking piece is fixed at the upper end of the push rod, a spring is connected between the blocking piece and the sliding block, and the lower end of the push rod extends towards the outer circumference to form a push block capable of driving the sliding block to slide upwards. This scheme makes crimping mechanism before the crimping, the tight terminal of clamp in advance, the piston rod is in the state of withdrawing, drive the push rod and impel the spring to act on the slider, the spring can play the cushioning effect, can guarantee that the clamp force size of the tight terminal of first keeping silent and second keep silent, can not press from both sides the terminal bad, and leave the clearance between slider and ejector pad, can further crimp terminal in pencil through setting up the lower extreme that outside thrust acted on first crimping arm and second crimping arm, the crimping in-process, mutual noninterference between slider and ejector pad can realize the automatic completion of whole crimping action.

Preferably, the first jaw is provided with a female die, the second jaw is provided with a male die, and the female die is engaged with the male die to form a compression joint part. The jaw is matched with the male die through the female die, so that the crimping part is accurately positioned, and the crimping part can be positioned at a determined position after being closed every time.

The beneficial effects of the invention are: the invention provides a crimping mechanism which can pre-clamp a terminal before crimping of a wire harness crimping terminal, is suitable in clamping force, can automatically complete crimping of the wire harness and the terminal into a whole, does not need manual operation, is simple in structure and convenient to use, and can be suitable for automatic equipment.

Drawings

FIG. 1 is a schematic view of the crimping mechanism of the present invention;

FIG. 2 is a structural view of a crimping mechanism in the embodiment of the invention;

FIG. 3 is a front view of a crimping mechanism in an embodiment of the invention.

Detailed Description

The invention is further described with reference to the following drawings and detailed description:

referring to fig. 1, 2 and 3, the present invention relates to a crimping mechanism, which comprises a frame 1, wherein the frame 1 is provided with a first crimping arm 2 and a second crimping arm 3, the middle parts of which are pivoted together, the middle parts of the first crimping arm 2 and the second crimping arm 3 are pivoted with each other through a pivot 10, and the pivot 10 is pivoted on the frame 1 in cooperation with a locking block (not shown); the upper end of the first compression arm 2 is fixed with a female die 21 by a bolt, the upper end of the second compression arm 3 is fixed with a male die 31 by a bolt, the first compression arm 2 is pivoted with a first connecting rod 22 between the end and the middle hinge point, the second compression arm 3 is pivoted with a second connecting rod 32 between the end and the middle hinge point, one end of the first connecting rod 22 and one end of the second connecting rod 32 are both pivoted on a sliding block 4, the sliding block 4 is slidably connected on a sliding groove 5, the sliding groove 5 is fixed on the frame 1 by a bolt, a cylinder 6 for driving the sliding block 4 to slide on the sliding groove 5 is arranged below the sliding block 4, the cylinder 6 is fixed on the sliding groove 5, a push rod 62 is sleeved on a piston rod 61 on the cylinder 6, the push rod 62 passes through the middle of the sliding block 4 and is fixed with a baffle plate 8 on the upper end thereof, a spring 9 is connected between the baffle plate 8 and the sliding block 4, the lower end of the push rod 62 extends towards the outer circumference to form a push block 621 capable of driving the sliding block 4 to slide upwards, the lower ends of the first crimp arm 2 and the second crimp arm 3 are respectively hinged with a roller 7 capable of inputting an external force F1 to the left crimp arm 2 and the right crimp arm 3.

The crimping mechanism comprises the following specific processes of crimping a terminal of a wire harness: firstly, the cylinder 6 drives the piston rod 61 to drive the push rod 62 to move upwards, the push block 621 on the push rod 62 drives the slider 4 to slide upwards on the chute 5, the first connecting rod 22 and the second connecting rod 32 pivoted on the slider 4 move in an opening manner relative to the axis of the frame 1, so as to drive the female die 21 on the first crimping arm 2 and the male die 31 on the second crimping arm 3 to open the receiving terminal, then, the push rod 62 moves downwards under the action of the cylinder 6, the blocking piece 8 on the push rod 62 compresses the spring 9 in the downward movement process so as to drive the slider 4 to slide downwards, the first connecting rod 22 and the second connecting rod 32 pivoted on the slider 4 move in a closing manner relative to the axis of the frame 1, so as to drive the female die 21 on the first crimping arm 2 and the male die 31 on the second crimping arm 3 to close the clamping terminal, so as to pre-clamp the terminal, and then, the wiring harness is connected into the terminal, at this time, a gap is left between the push block 621 and the slider 4, a pair of opposite acting forces are applied to the first crimp arm 2 and the second crimp arm 3 by the external thrust F1 of the roller 7, and the female die 21 is engaged with the male die 31 to crimp the terminal and the wire harness into a whole, thereby completing the entire crimping operation.

Various other changes and modifications to the embodiments and concepts described above will be apparent to those skilled in the art, and all such changes and modifications are intended to be included within the scope of the appended claims.

Claims

1. The utility model provides a crimping mechanism, includes first crimping arm (2) and second crimping arm (3) that the middle part passes through a pivot (10) and pivot each other, the upper end of first crimping arm (2) is equipped with first keeping silent (21), the upper end of second crimping arm (3) is equipped with second and keeps silent (31), its characterized in that: first crimping arm (2) pin joint has first connecting rod (22) between end and middle part pivot point, second crimping arm (3) pin joint has second connecting rod (32) between end and middle part pivot point, first connecting rod (22) with a terminal all pin joint in a slider (4) of second connecting rod (32), slider (4) sliding joint is on a spout (5), be fixed with a drive on the spout slider (4) gliding power device (6) are gone up in spout (5), first crimping arm (2) with the lower extreme of second crimping arm (3) is used for external crimping power.

2. The crimping mechanism of claim 1, wherein: the tail ends of the first compression joint arm (2) and the second compression joint arm (3) are hinged to a roller (7), and external compression joint power is input from the roller (7).

3. The crimping mechanism of claim 1, wherein: the power device (6) is an air cylinder, the air cylinder is arranged below the sliding block, and a piston rod (61) on the air cylinder is connected with the lower end of the sliding block.

4. The crimping mechanism of claim 3, wherein: the piston rod is sleeved with a push rod (62), the push rod (62) penetrates through the middle of the sliding block (4) and is fixedly provided with a blocking piece (8) at the upper end of the push rod, a spring (9) is connected between the blocking piece (8) and the sliding block (4), and the lower end face of the push rod (62) extends towards the outer circumference to form a push block (621) capable of driving the sliding block (4) to slide upwards.

5. The crimping mechanism of claim 1, wherein: the first jaw (21) is provided with a female die, the second jaw (31) is provided with a male die, and the female die and the male die are meshed to form a crimping part.