Anti-twist high-precision wire harness terminal crimping device

Abstract

The utility model relates to an anti-twisting high-precision wire harness terminal crimping device, which is characterized in that a positioning frustum is arranged on a positioning block, a telescopic pressing block is arranged on a sliding block, and the pressing block is used for pressing the connecting end of a terminal before an upper pressing plate, so that the terminal is flatly attached to the positioning block, and the twisting state of the terminal is eliminated; and then the upper pressing plate is pressed down on the terminal to compress and shape the side plates on the two sides of the terminal, so that the technical problem that the terminal is crimped in a torsion state due to human factors is effectively avoided, and the crimping quality of the wiring harness terminal is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of equipment specially used for connecting electric conductors, and in particular relates to a twist-proof high-precision wire harness terminal crimping device. Background Art

[0002] Semi-automatic wire harness terminal crimping machines are still in great demand in the market due to their low cost. When in use, the wire harness is manually embedded between the side plates of the terminal, and then the terminal with the embedded wire harness is placed on the positioning block of the wire harness terminal crimping machine. The driver is then started, and the driver drives the upper pressing plate to press down. The concave die cavity on the upper pressing plate squeezes the side plates on both sides of the terminal to bend inward and deform until the side plates on both sides of the wire harness are crimped onto the wire harness, wherein a part of the side plates are crimped onto the outer sheath layer of the wire harness, and a part of the side plates are crimped onto the metal conductor, thereby realizing a reliable conductive connection between the wire harness and the terminal.

[0003] However, due to errors in human operation, when the operator places the wiring harness terminal on the positioning block, the wiring harness terminal may be twisted at a certain angle. The wiring harness terminal is crimped by the upper pressure plate in this state, which will cause different curvatures of the side plates on both sides of the terminal, affecting the connection stability, conductive reliability and aesthetics between the terminal and the wiring harness. Therefore, it is necessary to further improve the existing wiring harness terminal crimping device to solve the technical problem of the terminal being crimped in a twisted state. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a twist-proof high-precision wire harness terminal crimping device to solve the technical problem that the terminal is crimped in a twisted state due to human factors.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an anti-twist high-precision wire harness terminal crimping device, including a support, a slider and a driver driving the slider to move up and down are vertically slidably connected to the support, an upper pressing plate is connected to the slider, and a concave mold cavity for pressing and bending the side plates on both sides of the terminal inward is opened at the lower end of the upper pressing plate, a positioning block for placing the terminal is arranged below the upper pressing plate, and the positioning block is also fixedly connected to the support, and an upwardly protruding positioning cone is arranged on the positioning block, and the positioning cone matches the through hole of the terminal connection end, and the slider slides upward. The dynamic connection is provided with two guide rods which are vertically arranged and arranged in parallel. The lower ends of the two guide rods extend out from under the slider and are fixedly connected with a clamping block. A coil spring is sleeved on the guide rod between the clamping block and the slider. The upper end of the guide rod extends upward out of the slider and is connected with a limit block. The limit block is opposite to the top surface of the slider to prevent the guide rod from downwardly separating from the slider. A positioning cone hole corresponding to the positioning cone is provided on the clamping block. When the clamping block is crimped onto the connecting end of the terminal, the positioning cone is just inserted into the positioning cone hole. When no external force is applied, the lower end of the clamping block is lower than the lower end of the upper pressure plate.

[0006] As a preferred solution, the positioning cone is rotatably connected to the positioning block.

[0007] As a preferred solution, the support includes a bottom plate, a support plate and a top plate, the bottom plate and the top plate are arranged opposite to each other up and down, the support plate is connected to the same side of the bottom plate and the top plate, and the driver is fixedly connected to the top of the top plate.

[0008] As a preferred solution, two vertically extending slide rails are arranged in parallel on the support plate, and the sliding block is slidably connected to the two slide rails.

[0009] As a preferred solution, the driver is a piston push rod or an electric push rod, and the output end of the driver is fixedly connected to the slider.

[0010] The beneficial effect of the utility model is as follows: the utility model arranges a positioning cone on the positioning block, arranges a retractable clamping block on the slider, and utilizes the clamping block to clamp the connecting end of the terminal before the upper clamping plate, so that the terminal is flat against the positioning block, eliminating the twisted state of the terminal, and then the upper clamping plate is pressed down onto the terminal to press and shape the side plates on both sides of the terminal, thereby effectively avoiding the technical problem of the terminal being crimped in a twisted state due to human factors, and greatly improving the crimping quality of the wiring harness terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0012] Figure 1 It is a schematic diagram of the terminal structure;

[0013] Figure 2 It is a right view of the utility model;

[0014] Figure 3 It is the front view of the utility model;

[0015] Figure 1~Figure 3 Middle: 1. Support, 1a. Bottom plate, 1b. Support plate, 1c. Top plate, 2. Slider, 3. Driver, 4. Upper pressure plate, 5. Die cavity, 6. Positioning block, 7. Positioning cone, 8. Guide rod, 9. Clamping block, 10. Coil spring, 11. Limit block, 12. Positioning cone hole, 13. Slide rail, 14. Terminal, 15. Side plate, 16. Connecting end, 17. Through hole. DETAILED DESCRIPTION

[0016] The specific implementation scheme of the utility model is described in detail below in conjunction with the accompanying drawings.

[0017] like Figure 1~Figure 3The anti-twisting high-precision wire harness terminal crimping device shown includes a support 1, a slider 2 and a driver 3 for driving the slider 2 to move up and down are vertically slidably connected to the support 1, an upper pressing plate 4 is connected to the slider 2, and a concave mold cavity 5 is opened at the lower end of the upper pressing plate 4 for pressing and bending the side plates 15 on both sides of the terminal 14 inwardly, a positioning block 6 for placing the terminal 14 is arranged below the upper pressing plate 4, and the positioning block 6 is also fixedly connected to the support 1, and an upwardly protruding positioning cone 7 is provided on the positioning block 6, and the positioning cone 7 matches the through hole 17 of the connecting end 16 of the terminal 14, and two vertically arranged and parallel guide rods 8 are slidably connected to the slider 2, and the lower ends of the two guide rods 8 extend out from the bottom of the slider 2 and are fixedly connected to a clamping block 9, and a coil spring 10 is sleeved on the guide rod 8 between the clamping block 9 and the slider 2, and the upper end of the guide rod 8 extends upward out of the slider 2 and is connected to a limiting block 11, and the limiting block 11 is opposite to the top surface of the slider 2 to prevent the guide rod 8 from detaching downward from the slider 2. When the clamping block 9 is crimped onto the terminal 14, the guide rod 8 slides upward relative to the slider 2, the coil spring 10 is compressed, and the elastic force is applied to the terminal 14, so that the terminal 14 remains in contact with the upper surface of the positioning block 6, eliminating the twisted state of the terminal 14. The clamping block 9 is provided with a positioning cone hole 12 corresponding to the positioning cone 7. When the clamping block 9 is crimped onto the connecting end 16 of the terminal 14, the positioning cone 7 is just inserted into the positioning cone hole 12. When no external force is applied, the lower end of the clamping block 9 is lower than the lower end of the upper pressing plate 4, and the height difference between the two is not less than the height of the side plates 15 on both sides of the terminal 14, so as to ensure that after the clamping block 9 presses the terminal 14, the upper pressing plate 4 is then crimped onto the side plates 15 on both sides of the terminal 14.

[0018] In this embodiment, the positioning cone 7 is preferably rotatably connected to the positioning block 6 , so that it is convenient for the user to swing the terminal 14 to adjust its positional relationship with the female mold cavity 5 .

[0019] The support 1 includes a bottom plate 1a, a support plate 1b and a top plate 1c, wherein the bottom plate 1a and the top plate 1c are arranged opposite to each other in the vertical direction, the support plate 1b is connected to the same side of the bottom plate 1a and the top plate 1c, and the driver 3 is fixedly connected to the top of the top plate 1c. Two vertically extending slide rails 13 are arranged in parallel on the support plate 1b, and the slider 2 is slidably connected to the two slide rails 13.

[0020] The driver 3 in this embodiment is a piston push rod or an electric push rod, and the output end of the driver 3 is fixedly connected to the slider 2.

[0021] The working process of this utility model is: Figure 2As shown, the user places the terminal 14 with the wire harness embedded on the positioning block 6 so that the through hole 17 of the terminal 14 is sleeved on the positioning cone 7, and then starts the driver 3. The driver 3 drives the slider 2 to slide downward along the slide rail 13, and the slider 2 drives the clamping block 9 and the upper pressing plate 4 to move downward. The lower end of the clamping block 9 first contacts the connecting end 16 of the terminal 14 to clamp the terminal 14 so that the terminal 14 is tightly attached to the top surface of the positioning block 6. The slider 2 continues to move downward, the coil spring 10 is compressed, and the concave mold cavity 5 of the upper pressing plate 4 contacts the side plates 15 on both sides of the terminal 14. At this time, the terminal 14 can be guided to swing appropriately to adjust its posture. The concave mold cavity 5 continues to press down to shape the side plates 15 on both sides of the terminal 14 until the lower end of the upper pressing plate 4 abuts against the top surface of the positioning block 6, and the crimping of the wire harness and the terminal 14 is completed.

[0022] By arranging a positioning cone 7 on the positioning block 6 and arranging a retractable clamping block 9 on the slider 2, the clamping block 9 is used to clamp the connecting end 16 of the terminal 14 before the upper pressing plate 4, so that the terminal 14 is flat on the positioning block 6, eliminating the twisted state of the terminal 14, and then the upper pressing plate 4 is pressed down onto the terminal 14 to press and shape the side plates 15 on both sides of the terminal 14, thereby effectively avoiding the technical problem that the terminal 14 is crimped in a twisted state due to human factors, and greatly improving the crimping quality of the wiring harness terminal.

[0023] The above embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A twist-proof high-precision wire harness terminal crimping device, comprising a support (1), a slider (2) and a driver (3) for driving the slider (2) to move up and down are vertically slidably connected to the support (1), an upper pressing plate (4) is connected to the slider (2), a concave mold cavity (5) for pressing and bending the side plates of the terminal inward is provided at the lower end of the upper pressing plate (4), a positioning block (6) for placing the terminal is provided below the upper pressing plate (4), and the positioning block (6) is also fixedly connected to the support (1), characterized in that: The positioning block (6) is provided with an upwardly protruding positioning cone (7), which matches the through hole of the terminal connection end. The slider (2) is slidably connected to two vertically arranged and parallel guide rods (8), the lower ends of the two guide rods (8) extend below the slider (2) and are fixedly connected to a clamping block (9), a coil spring (10) is sleeved on the guide rod (8) between the clamping block (9) and the slider (2), and the upper ends of the guide rods (8) extend upward to slide. The block (2) is connected to a limit block (11) outside the slider (2), and the limit block (11) is opposite to the top surface of the slider (2) to prevent the guide rod (8) from detaching downward from the slider (2). The clamping block (9) is provided with a positioning cone hole (12) corresponding to the positioning cone (7). When the clamping block (9) is crimped onto the connecting end of the terminal, the positioning cone (7) is just inserted into the positioning cone hole (12). When no external force is applied, the lower end of the clamping block (9) is lower than the lower end of the upper pressure plate (4).

2. The anti-twist high-precision wire harness terminal crimping device according to claim 1, characterized in that: The positioning cone (7) is rotatably connected to the positioning block (6).

3. The anti-twist high-precision wire harness terminal crimping device according to claim 1, characterized in that: The support (1) comprises a bottom plate (1a), a support plate (1b) and a top plate (1c); the bottom plate (1a) and the top plate (1c) are arranged opposite to each other up and down; the support plate (1b) is connected to the same side of the bottom plate (1a) and the top plate (1c); and the driver (3) is fixedly connected to the top of the top plate (1c).

4. The anti-twist high-precision wire harness terminal crimping device according to claim 3, characterized in that: Two vertically extending slide rails (13) are arranged in parallel on the support plate (1b), and the sliding block (2) is slidably connected to the two slide rails (13).

5. The anti-twist high-precision wire harness terminal crimping device according to claim 1, characterized in that: The driver (3) is a piston push rod or an electric push rod, and the output end of the driver (3) is fixedly connected to the slider (2).

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