Lateral bending needle tool jig

Abstract

The utility model belongs to the technical field of mutual inductor processing, and particularly relates to a lateral bending pin tool jig which comprises a base body, a fixing die and a bending mechanism, the fixing die and the bending mechanism are arranged on the base body, the fixing die is provided with a fixing groove for placing a fixing end of a contact pin, and a to-be-bent end of the contact pin faces one side of the bending mechanism. The bending mechanism comprises a bending sliding block and a driving device, the bending sliding block has the freedom degree of translation by means of the driving device, and the bending sliding block bears the fixed point position to translate and pokes the to-be-bent end of the contact pin to be bent by means of the fixed point position. The to-be-bent end of the contact pin is driven to be bent through relative movement between the fixing die and the bending sliding block, the stability of the contact pin bending process can be guaranteed, compared with manual operation, the accuracy of the bending angle and strength can be greatly improved, the standardization of the bending angle of the contact pins of the same batch is guaranteed, the product quality is more stable, and the production efficiency is improved. The defective rate of products is reduced, and meanwhile the machining efficiency is improved.

Description

A side-bending needle tooling fixture Technical Field

[0001] This utility model belongs to the field of current transformer processing technology, specifically relating to a side-bending needle tooling fixture. Background Technology

[0002] Due to product requirements, some current transformer pins need to be bent. Currently, the bending process of current transformer pins is mostly carried out manually. Operators need to rely on experience to control the bending force and angle. However, manual operation lacks precise quantitative standards, resulting in large deviations in the bending angle of the same batch of pins. This seriously affects the stability of the electrical connection of the current transformer, causing problems such as poor contact, and resulting in a high defect rate. At the same time, long-term manual operation can easily lead to fatigue, resulting in a decrease in bending efficiency, making it unsuitable for mass production. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a side-bending needle fixture. By driving the bending end of the needle to be bent through the relative movement between the fixed mold and the bending slider, the stability of the needle bending process can be ensured. Compared with manual operation, it can significantly improve the accuracy of bending angle and force, ensure the standardization of bending angle of the same batch of needles, make the product quality more stable, reduce the product defect rate, and improve processing efficiency.

[0004] The specific technical solution adopted in this utility model is as follows:

[0005] A side-bending needle fixture includes a base, a fixed mold disposed on the base, and a bending mechanism. The fixed mold is provided with a fixing groove for placing the fixed end of the needle. The end of the needle to be bent faces the bending mechanism. The bending mechanism includes a bending slider and a driving device. The bending slider has a degree of freedom of translation with the help of the driving device. The bending slider carries a fixed point and moves it to bend the end of the needle.

[0006] The base is also provided with a horizontal guide rail, the direction of which is perpendicular to the opening of the fixed groove. A sliding groove is provided below the bending slider and slides in cooperation with the guide rail.

[0007] The driving device includes an eccentric shaft and a swing push rod. The swing push rod is hinged to the base in a guillotine shape. A guide slope is provided on the contact side of the swing push rod and the eccentric shaft. The eccentric shaft is eccentrically hinged to the base and is located on one side of the driving end of the bending slider. The eccentric shaft is deflected by the pushing of the guide slope and pushes the bending slider to move.

[0008] The limiting end of the bending slider is provided with a limiting bolt that is threadedly connected to the seat body. The limiting bolt is set along the translation direction of the bending slider and prevents the bending slider from translating toward the side away from the swing push rod.

[0009] The base is also provided with a limiting frame, and the fixing mold forms a detachable plug-in fit with the base by means of the limiting frame.

[0010] The fixed point includes a fixed rod, which is located on the back side of the end of the pin to be bent. The fixed rod moves with the bending slider, causing the end of the pin to be bent to be bent. Multiple sets of fixed rods are arranged at intervals along the translational direction of the bending slider.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model provides a side-bending needle fixture. The fixed end of the needle is fixed by the fixed groove of the fixed mold, and the fixed point on the bending slider is used to bend the end of the needle to be bent. This can ensure the stability of the needle bending process. Compared with manual operation, it can greatly improve the accuracy of bending angle and force, ensure the standardization of bending angle of the same batch of needles, make the product quality more stable, reduce the product defect rate, and at the same time, using this fixture for bending reduces the labor of workers and improves processing efficiency.

[0013] 2. The driving device in this utility model adopts a combination of an eccentric shaft and a swing push rod. The swing of the swing push rod drives the guide inclined surface to squeeze the eccentric shaft, causing the eccentric shaft to deflect and thus push the bending slider to move. By adjusting the swing amplitude of the swing push rod, the sliding distance of the bending slider can be easily controlled, thereby realizing flexible control of the bending angle of the pin. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the structure of this utility model;

[0015] Figure 2 is a side view of the structure of this utility model;

[0016] Figure 3 is a top view of the structure of this utility model;

[0017] Figure 4 is a schematic diagram of the cross-sectional structure along the AA direction in Figure 3;

[0018] Figure 5 is a schematic diagram of the cross-sectional structure along the BB direction in Figure 3;

[0019] In the attached diagram, 1 is the base, 2 is the fixed mold, 3 is the pin, 4 is the fixed groove, 5 is the bending slider, 6 is the guide rail, 7 is the eccentric shaft, 8 is the swing push rod, 9 is the limit bolt, 10 is the guide slope, 11 is the limit frame, and 12 is the fixed rod. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] As shown in Figures 1-5, this utility model provides a side-bending needle tooling fixture, including a base 1, a fixed mold 2 disposed on the base 1, and a bending mechanism. The fixed mold 2 is provided with a fixed groove 4 for placing the fixed end of the needle 3. The end of the needle 3 to be bent faces the side of the bending mechanism. The bending mechanism includes a bending slider 5 and a driving device. The bending slider 5 has the freedom of translation with the help of the driving device. The bending slider 5 carries the fixed point and moves it to bend the end of the needle 3 with the help of the fixed point.

[0022] Currently, the bending process of current transformer pins 3 is mostly carried out manually. Operators need to rely on experience to control the bending force and angle. However, due to the lack of precise quantitative standards for manual operation, the bending angle of pins 3 in the same batch of products varies greatly, which greatly affects the stability of the electrical connection of the current transformer. This leads to problems such as poor contact in subsequent testing, resulting in a high defect rate. At the same time, manual operation is prone to fatigue after long hours, which will cause a significant decrease in bending efficiency, making it unsuitable for large-scale bending of pins 3.

[0023] Therefore, this utility model provides a side-bending needle fixture. The fixed end of the needle 3 is fixed by the fixed groove 4 of the fixed mold 2. The fixed point on the bending slider 5 is used to move the end of the needle 3 to be bent. Since the position of the fixed mold 2 remains unchanged, the end of the needle 3 to be bent will bend at a bending angle with the fixed end of the needle 3 under the movement of the fixed point, and the shape will be fixed. This ensures the stability of the bending process of the needle 3. Compared with manual operation, it can greatly improve the accuracy of bending angle and force, ensure the standardization of bending angle of the same batch of needles 3, make the product quality more stable, reduce the product defect rate, and at the same time, the bending of the needle using this fixture reduces the labor of workers and improves the processing efficiency.

[0024] As shown in Figures 4-5, the base 1 is also provided with a horizontal guide rail 6. The guide rail 6 is perpendicular to the opening of the fixing groove 4. The bending slider 5 has a sliding groove below it, which slides in cooperation with the guide rail 6. The guide rail 6 provides precise guidance for the translation of the bending slider 5, ensuring that the bending slider 5 moves smoothly along the horizontal direction perpendicular to the direction of the pin 3, further improving the bending accuracy of the pin 3.

[0025] As shown in Figures 1-3 and 5, the driving device includes an eccentric shaft 7 and a swing push rod 8. The swing push rod 8 is hinged to the base 1 in a guillotine shape. A guide slope 10 is provided on the contact side of the swing push rod 8 and the eccentric shaft 7. The eccentric shaft 7 is eccentrically hinged to the base 1 and is located on one side of the driving end of the bending slider 5. The eccentric shaft 7 is deflected by the pushing of the guide slope 10 and pushes the bending slider 5 to move. The driving device in this utility model adopts a combination of eccentric shaft 7 and swing push rod 8. The swing of the swing push rod 8 drives the guide slope 10 to squeeze the eccentric shaft 7, causing the eccentric shaft 7 to deflect and thus push the bending slider 5 to move. By adjusting the swing amplitude of the swing push rod 8, the sliding distance of the bending slider 5 can be easily controlled, thereby realizing flexible control of the bending angle of the pin 3.

[0026] As shown in Figures 1 and 3, the limiting end of the bending slider 5 is provided with a limiting bolt 9 that is threadedly connected to the base 1. The limiting bolt 9 is set along the translational direction of the bending slider 5, and the limiting bolt 9 prevents the bending slider 5 from translating away from the swing push rod 8. The setting of the limiting bolt 9 can prevent the bending slider 5 from translating excessively. By adjusting the position of the limiting bolt 9, the bending angle of the pin 3 can be precisely controlled to ensure the bending accuracy of the pin 3.

[0027] As shown in Figures 1 and 3, a limiting frame 11 is also provided on the base 1, and the fixing mold 2 forms a detachable plug-in engagement with the base 1 by means of the limiting frame 11. The limiting frame 11 in this utility model has a U-shaped structure, and the bottom of the U-shape of the limiting frame 11 is located on the side of the bending direction of the pin 3. When the fixing rod 12 moves the end of the pin 3 to be bent, the fixing mold 2 cannot continue to move due to the interception of the bottom of the U-shape of the limiting frame 11, thereby causing the connection between the end of the pin 3 to be bent and the fixing end to be bent. In addition, since the bending slider 5 cannot accurately guarantee that the position of each reset is completely consistent after reset, the position of the fixing rod 12 will change. The U-shaped opening side of the limiting frame 11 facilitates the adjustment of the position of the fixing mold 2, so that the fixing rod 12 is located on the back side of the end of the pin 3 to be bent.

[0028] As shown in Figures 1 and 3-4, the fixed point includes a fixed rod 12, which is located on the back side of the end of the pin 3 to be bent. The fixed rod 12 moves with the bending slider 5, causing the end of the pin 3 to be bent, resulting in a bend. Multiple sets of fixed rods 12 are spaced apart on the bending slider 5 along its translational direction. The multiple sets of fixed rods 12 allow the tooling fixture to simultaneously bend multiple pins 3, greatly improving the processing efficiency of bending the pins 3 and making it suitable for mass production of bending pins 3.

Claims

1. A side-bending needle fixture, comprising a base (1), a fixing mold (2) disposed on the base (1), and a bending mechanism, wherein the fixing mold (2) is provided with a fixing groove (4) for placing the fixing end of a needle (3), and the end of the needle (3) to be bent faces the bending mechanism, characterized in that, The bending mechanism includes a bending slider (5) and a driving device. The bending slider (5) has a degree of freedom of translation with the help of the driving device. The bending slider (5) carries the fixed point to translate and uses the fixed point to move the end of the pin (3) to be bent to be bent.

2. The side-bending needle tooling jig of claim 1, wherein, The base (1) is also provided with a horizontal guide rail (6), the direction of the guide rail (6) is perpendicular to the opening of the fixed groove (4), and the bending slider (5) is provided with a sliding groove below it and slides in cooperation with the guide rail (6).

3. The side-bending needle fixture according to claim 1, characterized in that, The driving device includes an eccentric shaft (7) and a swing push rod (8). The swing push rod (8) is hinged to the seat (1) in a guillotine shape. A guide slope (10) is provided on the contact side of the swing push rod (8) and the eccentric shaft (7). The eccentric shaft (7) is eccentrically hinged to the seat (1) and is provided on one side of the driving end of the bending slider (5). The eccentric shaft (7) is deflected by the pushing of the guide slope (10) and pushes the bending slider (5) to move.

4. The side-bending needle tooling jig of claim 3, wherein, The limiting end of the bending slider (5) is provided with a limiting bolt (9) that is threadedly connected to the seat (1). The limiting bolt (9) is set along the translation direction of the bending slider (5). The limiting bolt (9) prevents the bending slider (5) from translating toward the side away from the swing push rod (8).

5. A side-bending needle fixture according to claim 1, characterized in that, The base (1) is also provided with a limiting frame (11), and the fixing mold (2) forms a detachable plug-in fit with the base (1) by means of the limiting frame (11).

6. The side-bending needle tooling jig of claim 1, wherein, The fixed point includes a fixed rod (12), which is located on the back side of the end of the pin (3) to be bent. The fixed rod (12) moves the end of the pin (3) to be bent as the bending slider (5) moves, causing the end to be bent to be bent. Multiple sets of fixed rods (12) are arranged at intervals along the translation direction on the bending slider (5).

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