Synchronous bending device for multi-row mixed pins of plug

Abstract

The utility model provides a plug multi-row mixed pin synchronous bending device, which comprises an upper die and a lower die, the lower die is provided with a mounting seat, the mounting seat is provided with a positioning part, and a plug is arranged on the positioning part, so that the extension ends of the pins of the plug are arranged at an included angle relative to the lower die and obliquely extend upwards; the upper die is provided with a pressing block which is supported by a first elastic piece and is pressed on the plug to fix the plug when the upper die descends; the lower die is further provided with a bending comb plate, and the bending comb plate is located on one side of the extension direction of the pins of the installation base. And bending top blocks are symmetrically arranged on the two sides of the bending comb plate. The pin bending device has the advantages that different groups of pins can be synchronously bent, the bending consistency is ensured, and the production efficiency and the yield are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of plug pin bending processes, and particularly relates to a synchronous bending device for multi-row hybrid pins of a plug. Background Art

[0002] When a plug is produced, its pins are often inserted into the plug and then bent according to the actual installation scenario (for example, for the horizontal installation of a board-mounted plug, the pins need to be bent to correspond to the welding holes on the circuit board); due to the very wide application scenarios of board-mounted plugs, especially in the in-vehicle infotainment system field, the plugs will undertake a large amount of data exchange, and the number of their pins is also large. Some pins are responsible for power supply, and some are responsible for signal transmission. Therefore, the pins will be arranged in multiple rows and their cross-sections are also different from each other, which leads to the bending points of different groups of pins being staggered during bending. If the pins of each group are bent separately, it is easy to cause poor consistency of the pins of each group after bending, resulting in the pins of each group not being able to be completely aligned with the welding holes on the circuit board, thereby reducing the product yield rate. At the same time, it also increases the number of process steps and labor costs, and it is difficult to improve the production efficiency; at the same time, after the traditional pins are bent, there is also a problem of pin rebound caused by stress release after bending, so that the bending angle cannot reach the set angle. Summary of the Utility Model

[0003] Based on the above problems, the purpose of the utility model is to provide a synchronous bending device for multi-row hybrid pins of a plug that synchronously bends different groups of pins and ensures bending consistency, effectively improving production efficiency and product yield rate.

[0004] In view of the above problems, the following technical solutions are provided: A multi-row hybrid pin synchronous bending device for a plug, including an upper die and a lower die that can approach or separate from each other. The lower die is provided with a mounting seat, and the mounting seat is provided with a positioning portion. The plug is placed on the positioning portion so that the extending ends of its pins are arranged at an angle relative to the lower die and extend obliquely upward; The upper die is provided with a pressing block supported by a first elastic member, which presses on the plug to fix it when the upper die descends; The lower die is further provided with a bending comb plate, and the bending comb plate is located on one side of the mounting seat in the extending direction of the pins; Symmetrically arranged bending top blocks are provided on both sides of the bending comb plate; On one side of the mounting seat in the extending direction of the pins, there are first fulcrums located on both sides of the bending comb plate. The bending comb plate is provided with a second fulcrum and a third fulcrum, and the bending top block is provided with a fourth fulcrum. The height of each fulcrum from the lower die increases in sequence as the first fulcrum, the second fulcrum, the third fulcrum, and the fourth fulcrum. In the extending direction of the pins, the distance between the fourth fulcrum and the plug is greater than that of the second fulcrum, the third fulcrum, and the first fulcrum. In the extending direction of the pins, the distance between the third fulcrum and the plug is greater than that of the second fulcrum and the first fulcrum; The upper die is provided with a punching plate, and the punching plate is provided with second abutting portions, third abutting portions, and fourth abutting portions that are spaced from the second fulcrum, the third fulcrum, and the fourth fulcrum in the extending direction of the pins when it follows the upper die and descends; The upper die is further provided with an upper ejector pin, and the bending top block is provided with a bending pin that is pushed downward by the upper ejector pin. The bending pin is spaced from the first fulcrum in the extending direction of the pins.

[0005] In the above structure, when the upper die descends, the pressing block first contacts the plug to fix the plug. Then, as the upper die further descends, the second abutting portion, the third abutting portion, and the fourth abutting portion of the punching plate, as well as the upper ejector pin, push the bending pin to press and bend the pins located on the second fulcrum, the third fulcrum, the fourth fulcrum, and the first fulcrum, realizing the synchronous bending of the pins at different positions of the plug; Since the traditional bending method causes the pins to rebound due to stress release after bending and thus the bending angle cannot be fixed at the set degree, the positioning portion of the mounting seat is arranged obliquely, so that the pins of the plug show a tendency to extend obliquely upward after being placed. Therefore, after bending, the bending angle is greater than the set degree (90 degrees), and after the bending is completed, the pins can exactly reach the set degree (90 degrees) after the stress release and rebound of the pins.

[0006] The present utility model is further arranged such that a plurality of the second fulcrums and the third fulcrums are provided in the transverse direction of the bending comb plate, and the second fulcrum is located between adjacent third fulcrums.

[0007] In the above structure, the second fulcrum and the third fulcrum are used to bend the data pins of the plug. Therefore, a plurality of second fulcrums and third fulcrums need to be provided for the data pins.

[0008] The present utility model is further arranged such that the lower die is provided with a lower ejector pin, a return spring is provided at the lower end of the lower ejector pin, and the upper end of the lower ejector pin abuts against the bending pin.

[0009] In the above structure, when the upper ejector pushes the bending pin downward, the bending pin pushes the lower ejector downward and compresses the reset spring. After the bending is completed, the reset spring pushes the lower ejector to push the bending pin upward to reset it.

[0010] The utility model is further configured as follows: a midline position of the bending top block in the left and right directions is provided with a giving way groove for giving way to the pins when they are bent; the bending top block is also provided with a vertical slide groove opened from left to right through the giving way groove, and the two ends of the bending pin are respectively located in the vertical slide grooves on both sides of the giving way groove; the bending top block is provided with two vertical slideways that penetrate the bending top block in the height direction and are opened through the vertical slide grooves, and the two ends of the bending pin are located on the opening path of the vertical slideways, the lower ejector pin is inserted into the bending top block from the vertical slideway from bottom to top and is against the bending pin, and the upper ejector pin is inserted into the bending top block from the vertical slideway from top to bottom and is against the bending pin.

[0011] In the above structure, it is ensured that the lower ejector pin and the upper ejector pin can push both ends of the bending pin at the same time, so that the bending pin can move up and down stably.

[0012] The utility model is further configured such that the angle between the extension axis of the extension end of the pin and the lower mold is greater than 0 degrees and less than 20 degrees.

[0013] In the above structure, the angle between the extension axis of the extension end of the pin and the lower mold increases according to the elasticity of the pin.

[0014] The utility model is further configured such that the spacing distance between the second fulcrum and the second abutment portion, the spacing distance between the third fulcrum and the third abutment portion, the spacing distance between the fourth fulcrum and the fourth abutment portion, and the spacing distance between the first fulcrum and the bending pin are all greater than the bending thickness of the pin at the corresponding fulcrum position.

[0015] In the above structure, if the gap is less than or equal to the pin thickness, the pin is easily scratched or cut. At the same time, the existence of the spacing distance can control the bending amplitude according to the downward distance of the upper mold, thereby achieving fine adjustment of the bending angle.

[0016] The utility model is further configured such that the second abutting portion, the third abutting portion and the fourth abutting portion are all formed by connecting the first vertical side wall and the horizontal end wall parallel to the lower mold; the first fulcrum, the second fulcrum, the third fulcrum and the fourth fulcrum are formed by connecting the second vertical side wall spaced apart from and parallel to the first vertical side wall and the inclined end wall parallel to the extension direction of the pin.

[0017] The utility model is further configured such that a bending arc is provided at a joint between the second vertical side wall and the inclined end wall.

[0018] In the above structure, the bending arc can control the bending radius of the pin to avoid the pin from breaking.

[0019] The utility model is further configured such that the lower die is further provided with a stable abutting block. When the upper die descends, the stable abutting block abuts against the surface of the punching plate facing away from the second fulcrum, the third fulcrum, and the fourth fulcrum.

[0020] In the above structure, when the punching plate is bent, the pins will give it a lateral force, causing the punching plate to skew. By providing the stable abutting block, it is beneficial to stabilize the punching plate and endow it with sufficient rigidity.

[0021] The beneficial effects of the utility model are as follows: When the upper die descends, the pressing block first contacts the plug to fix the plug. Then, as the upper die further descends, the second abutting portion, the third abutting portion, the fourth abutting portion of the punching plate, and the upper ejector pin push the bending pin to press and bend the pins located at the second fulcrum, the third fulcrum, the fourth fulcrum, and the first fulcrum, realizing the synchronous bending of the pins at different positions of the plug; Since the traditional bending method causes the pins to rebound due to stress release after bending, and thus the bending angle cannot be fixed at the set degree, the positioning portion of the mounting seat is arranged obliquely, so that the pins of the plug show a tendency to extend obliquely upward after being placed, so that the bending angle after bending is greater than the set degree (90 degrees), and after the bending is completed, the bending angle can exactly reach the set degree (90 degrees) after the stress of the pins is released and rebounds. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic perspective view of the first perspective of the plug produced by the utility model.

[0023] Figure 2 It is a schematic left view of the plug produced by the utility model.

[0024] Figure 3 It is a schematic perspective view of the first perspective of the utility model.

[0025] Figure 4 It is a schematic perspective view of the second perspective of the utility model.

[0026] Figure 5 It is a schematic right-angle perspective view of the separated state of the upper die and the lower die of the utility model.

[0027] Figure 6 It is a schematic right-angle perspective view of the second separated state of the upper die and the lower die of the utility model.

[0028] Figure 7 It is a schematic perspective view of the separated state of the plug and the mounting seat of the utility model.

[0029] Figure 8 It is a schematic partial cross-sectional perspective view of the upper die of the utility model.

[0030] Figure 9Exploded three-dimensional structural schematic diagram of the bending top block of the present utility model.

[0031] Figure 10 Full-section structural schematic diagram of the first fulcrum and the fourth fulcrum before the upper die descends of the present utility model.

[0032] Figure 11 Full-section structural schematic diagram of the first fulcrum and the fourth fulcrum after the upper die descends of the present utility model.

[0033] Figure 12 Full-section structural schematic diagram of the third fulcrum before the upper die descends of the present utility model.

[0034] Figure 13 Full-section structural schematic diagram of the third fulcrum after the upper die descends of the present utility model.

[0035] Figure 14 Full-section structural schematic diagram of the second fulcrum before the upper die descends of the present utility model.

[0036] Figure 15 For the present utility model Figure 8 Enlarged structural schematic diagram of part A.

[0037] Meanings of the reference numerals in the figure: 10 - upper die; 11 - pressing block; 111 - first elastic member; 12 - punching plate; 121 - second abutting portion; 122 - third abutting portion; 123 - fourth abutting portion; 124 - first vertical side wall; 125 - horizontal end wall; 13 - upper ejector pin; 20 - lower die; 21 - mounting seat; 211 - positioning portion; 212 - first fulcrum; 22 - bending comb plate; 221 - second fulcrum; 222 - third fulcrum; 23 - bending top block; 231 - fourth fulcrum; 232 - relief groove; 233 - vertical chute; 234 - vertical slideway; 24 - bending pin; 25 - lower ejector pin; 251 - return spring; 26 - second vertical side wall; 27 - inclined end wall; 28 - bending arc; 29 - stable abutting block; a - plug; b - pin. Specific embodiments

[0038] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0039] Refer to Figures 1 to 15 As Figures 1 to 15A multi-row hybrid pin synchronous bending device for a plug, as shown, includes an upper die 10 and a lower die 20 that can approach or move away from each other. The lower die 20 is provided with a mounting seat 21, and the mounting seat 21 is provided with a positioning portion 211. The plug a is placed on the positioning portion 211 so that the extending end of its pin b extends obliquely upward at an angle with respect to the lower die 20. The upper die 10 is provided with a pressing block 11 supported by a first elastic member 111, and when the upper die 10 descends, it presses on the plug a to fix it. The lower die 20 is further provided with a bending comb plate 22, and the bending comb plate 22 is located on one side of the mounting seat 21 in the extending direction of the pin b. Symmetrically arranged bending top blocks 23 are provided on both sides of the bending comb plate 22. On one side of the mounting seat 21 in the extending direction of the pin b, first fulcrums 212 are provided on both sides of the bending comb plate 22. The bending comb plate 22 is provided with a second fulcrum 221 and a third fulcrum 222, and the bending top block 23 is provided with a fourth fulcrum 231. The heights of each fulcrum from the lower die 20 increase in sequence of the first fulcrum 212, the second fulcrum 221, the third fulcrum 222, and the fourth fulcrum 231. In the extending direction of the pin b, the distance between the fourth fulcrum 231 and the plug a is greater than that of the second fulcrum 221, the third fulcrum 222, and the first fulcrum 212. In the extending direction of the pin b, the distance between the third fulcrum 222 and the plug a is greater than that of the second fulcrum 221 and the first fulcrum 212. The upper die 10 is provided with a punching plate 12, and the punching plate 12 is provided with a second abutting portion 121, a third abutting portion 122, and a fourth abutting portion 123 that are spaced from the second fulcrum 221, the third fulcrum 222, and the fourth fulcrum 231 in the extending direction of the pin b when it follows the upper die 10 to descend. The upper die 10 is further provided with an upper ejector pin 13, and the bending top block 23 is provided with a bending pin 24 that is pushed downward by the upper ejector pin 13. The bending pin 24 is spaced from the first fulcrum 212 in the extending direction of the pin b.

[0040] In the above structure, when the upper die 10 descends, the pressing block 11 first contacts the plug a to fix the plug a. Then, as the upper die 10 further descends, the second abutting portion 121, the third abutting portion 122, and the fourth abutting portion 123 of the punching plate 12 and the upper ejector pin 13 push the bending pin 24 to press and bend the pin b located on the second fulcrum 221, the third fulcrum 222, the fourth fulcrum 231, and the first fulcrum 212, realizing the synchronous bending of the pins b at different positions of the plug a. Since the traditional bending method causes the pin b to rebound due to stress release after bending, and thus the bending angle cannot be fixed at the set degree, the positioning portion 211 of the mounting seat 21 is arranged obliquely, so that the pins b of the plug a show a tendency to extend obliquely upward after being placed. Therefore, after bending, the bending angle is greater than the set degree (90 degrees), and after the bending is completed, the pins b can exactly reach the set degree (90 degrees) after stress release and rebound.

[0041] In this embodiment, a plurality of the second supporting points 221 and the third supporting points 222 are arranged in the transverse direction of the bending comb plate 22 , and the second supporting point 221 is located between adjacent third supporting points 222 .

[0042] In the above structure, the second supporting point 221 and the third supporting point 222 are used to bend the data pin b of the plug a, so a plurality of second supporting points 221 and third supporting points 222 need to be provided for the data pin b.

[0043] In this embodiment, the lower die 20 is provided with a lower ejector pin 25 , a return spring 251 is provided at the lower end of the lower ejector pin 25 , and the upper end of the lower ejector pin 25 abuts against the bending pin 24 .

[0044] In the above structure, when the upper ejector 13 pushes the bending pin 24 downward, the bending pin 24 pushes the lower ejector 25 downward and compresses the reset spring 251. After the bending is completed, the reset spring 251 pushes the lower ejector 25 to push the bending pin 24 upward to reset it.

[0045] In this embodiment, a makeshift groove 232 is provided at the center dividing line position in the left and right directions of the bending top block 23 for making way for the pin b when it is bent; the bending top block 23 is also provided with a vertical slide groove 233 opened from left to right through the makeshift groove 232, and the two ends of the bending pin 24 are respectively located in the vertical slide grooves 233 on both sides of the makeshift groove 232; the bending top block 23 is provided with two vertical slideways 234 that penetrate the bending top block 23 in the height direction and are opened through the vertical slide grooves 233, and the two ends of the bending pin 24 are located on the opening path of the vertical slideways 234, the lower ejector pin 25 is inserted into the bending top block 23 from the vertical slideway 234 from bottom to top and is against the bending pin 24, and the upper ejector pin 13 is inserted into the bending top block 23 from the vertical slideway 234 from top to bottom and is against the bending pin 24.

[0046] In the above structure, it is ensured that the lower ejector pin 25 and the upper ejector pin 13 can simultaneously push the two ends of the bending pin 24 so that the bending pin 24 can move up and down stably.

[0047] In this embodiment, the angle a1 between the extension axis of the extension end of the pin b and the lower mold 20 is greater than 0 degrees and less than 20 degrees.

[0048] In the above structure, the angle a1 between the extension axis of the extension end of the pin b and the lower mold 20 increases gradually according to the elasticity of the pin b.

[0049] In this embodiment, the spacing distance between the second fulcrum 221 and the second abutment portion 121, the spacing distance between the third fulcrum 222 and the third abutment portion 122, the spacing distance between the fourth fulcrum 231 and the fourth abutment portion 123, and the spacing distance between the first fulcrum 212 and the bending pin 24 are all greater than the bending thickness of the pin b at the corresponding fulcrum position.

[0050] In the above structure, if the gap is less than or equal to the thickness of the pin b, it is easy to scratch or cut off the pin b. At the same time, due to the existence of the spacing distance, the bending amplitude can be controlled according to the downward distance of the upper die 10, realizing fine adjustment of the bending angle.

[0051] In this embodiment, the second abutting portion 121, the third abutting portion 122, and the fourth abutting portion 123 are all butted through the first vertical side wall 124 and the horizontal end wall 125 parallel to the lower die 20; the first fulcrum 212, the second fulcrum 221, the third fulcrum 222, and the fourth fulcrum 231 are butted through the second vertical side wall 26 spaced and parallel to the first vertical side wall 124 and the inclined end wall 27 parallel to the extending direction of the pin b.

[0052] In this embodiment, a bending arc 28 is provided at the butting position of the second vertical side wall 26 and the inclined end wall 27.

[0053] In the above structure, the bending arc 28 can control the bending radius of the pin b, avoiding breakage of the pin b.

[0054] In this embodiment, the lower die 20 is further provided with a stable abutting block 29. When the upper die 10 descends, the stable abutting block 29 abuts against the side of the punching plate 12 facing away from the second fulcrum 221, the third fulcrum 222, and the fourth fulcrum 231.

[0055] In the above structure, when the punching plate 12 bends, the pin b will give it a lateral force, causing the punching plate 12 to skew. By providing the stable abutting block 29, it is beneficial to stabilize the punching plate 12 and make it have sufficient rigidity.

[0056] The beneficial effects of the present utility model are as follows: When the upper die 10 descends, the pressing block 11 first contacts the plug a to fix the plug a. Then, as the upper die 10 further descends, the second abutting portion 121, the third abutting portion 122, the fourth abutting portion 123 of the punching plate 12 and the upper ejector pin 13 push the bending pin 24 to press and bend the pin b located on the second fulcrum 221, the third fulcrum 222, the fourth fulcrum 231, and the first fulcrum 212, realizing synchronous bending of the pins b at different positions of the plug a; Since the traditional bending method causes the pin b to rebound due to stress release after bending, and thus its bending angle cannot be fixed at the set degree, the positioning portion 211 of the mounting seat 21 is arranged obliquely, so that after the plug a is placed, its pin b shows a tendency to extend obliquely upward, so that after bending, its bending angle is greater than the set degree (90 degrees), and after the bending is completed, the pin b can just reach the set degree (90 degrees) after stress release and rebound.

[0057] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications made under the above assumptions should also be regarded as the protection scope of the present utility model.

Claims

1. A device for synchronously bending multiple rows of mixed pins of a plug, comprising an upper die and a lower die that can move closer to or farther from each other, characterized in that: The lower mold is provided with a mounting seat, and the mounting seat is provided with a positioning portion, and the plug is placed on the positioning portion so that the extending end of its pin is arranged at an angle relative to the lower mold and extends upward obliquely; the upper mold is provided with a pressing block supported by a first elastic member, which is pressed on the plug to fix it when the upper mold descends; the lower mold is also provided with a bending comb plate, which is located on one side of the extending direction of the pins of the mounting seat; symmetrically arranged bending top blocks are provided on both sides of the bending comb plate; the mounting seat is provided with a first fulcrum located on both sides of the bending comb plate on the side of the extending direction of the pins, the bending comb plate is provided with a second fulcrum and a third fulcrum, and the bending top block is provided with a fourth fulcrum, and the height of each fulcrum is The first fulcrum, the second fulcrum, the third fulcrum and the fourth fulcrum increase in sequence. The distance between the fourth fulcrum and the plug in the pin extension direction is greater than the second fulcrum, the third fulcrum and the first fulcrum. The distance between the third fulcrum and the plug in the pin extension direction is greater than the second fulcrum and the first fulcrum. The upper mold is provided with a punch plate, and the punch plate is provided with a second abutment portion, a third abutment portion and a fourth abutment portion which are spaced apart from the second fulcrum, the third fulcrum and the fourth fulcrum in the pin extension direction when the punch plate follows the upper mold to descend. The upper mold is also provided with an upper ejector pin, and the bending ejector block is provided with a bending pin which is pushed downward by the upper ejector pin, and the bending pin is spaced apart from the first fulcrum in the pin extension direction.

2. A plug multi-row mixed pin synchronous bending device according to claim 1, characterized in that: A plurality of the second supporting points and the third supporting points are arranged in the transverse direction of the bending comb plate, and the second supporting point is located between adjacent third supporting points.

3. The device for synchronously bending multiple rows of mixed pins of a plug according to claim 1, characterized in that: The lower die is provided with a lower ejector pin, the lower end of the lower ejector pin is provided with a return spring, and the upper end of the lower ejector pin is against the bending pin.

4. A plug multi-row mixed pin synchronous bending device according to claim 3, characterized in that: The center dividing line position of the bending top block in the left and right directions is provided with a giving way groove for giving way to the pins when they are bent; the bending top block is also provided with a vertical slide groove opened from left to right through the giving way groove, and the two ends of the bending pin are respectively located in the vertical slide grooves on both sides of the giving way groove; the bending top block is provided with two vertical slideways that penetrate the bending top block in the height direction and are opened through the vertical slide grooves, and the two ends of the bending pin are located on the opening path of the vertical slideways, the lower ejector pin is inserted into the bending top block from the vertical slideway from bottom to top and is against the bending pin, and the upper ejector pin is inserted into the bending top block from the vertical slideway from top to bottom and is against the bending pin.

5. The device for synchronously bending multiple rows of mixed pins of a plug according to claim 1, characterized in that: The angle between the extension axis of the extension end of the pin and the lower mold is greater than 0 degrees and less than 20 degrees.

6. The device for synchronously bending multiple rows of mixed pins of a plug according to claim 1, characterized in that: The spacing distance between the second fulcrum and the second abutment portion, the spacing distance between the third fulcrum and the third abutment portion, the spacing distance between the fourth fulcrum and the fourth abutment portion, and the spacing distance between the first fulcrum and the bending pin are all greater than the bending thickness of the pin at the corresponding fulcrum position.

7. The device for synchronously bending multiple rows of mixed pins of a plug according to claim 1, characterized in that: The second abutting portion, the third abutting portion and the fourth abutting portion are all formed by connecting the first vertical side wall and the horizontal end wall parallel to the lower mold; the first fulcrum, the second fulcrum, the third fulcrum and the fourth fulcrum are formed by connecting the second vertical side wall spaced apart and parallel to the first vertical side wall and the inclined end wall parallel to the extension direction of the pin.

8. The device for synchronously bending multiple rows of mixed pins of a plug according to claim 7, characterized in that: A bending arc is provided at the joint between the second vertical side wall and the inclined end wall.

9. The device for synchronously bending multiple rows of mixed pins of a plug according to claim 1, characterized in that: The lower die is also provided with a stabilizing block, and when the upper die descends, the stabilizing block abuts against a side of the punch plate that is away from the second fulcrum, the third fulcrum and the fourth fulcrum.

Images