Electrolytic capacitor pin folding jig and pin folding production method thereof

Abstract

The invention discloses an electrolytic capacitor pin folding jig and a pin folding production method thereof.The electrolytic capacitor pin folding jig comprises a base and a reset piece, and the reset piece is used for resetting a first movable arm and a second movable arm; the base is rotationally and slidably connected with the first movable arm and the second movable arm, the first movable arm and the second movable arm are rotationally connected in a crossed mode, and the upper end of the first movable arm and the upper end of the second movable arm are provided with a first extension part and a second extension part which are close to each other respectively; spaces for accommodating a capacitor fixing seat are respectively formed between the extension part I and the movable arm I and between the extension part II and the movable plate II; a first foot folding block and a second foot folding block are rotationally connected to the first extending part and the second extending part respectively, a torsional spring is arranged at the rotating connection position, and foot folding slopes are arranged on the first foot folding block and the second foot folding block respectively. The base is provided with a supporting seat capable of longitudinally stretching and moving, the supporting seat extends to the position between the first pin bending block and the second pin bending block and is used for bearing the capacitor fixing seat, the pin bending operation of all chip capacitors within a certain size range can be adapted in the mode that the pins are turned and bent through the pin bending blocks, and the pin bending device has more advantages especially for small-batch production. And the cost is lower.

Description

Technical Field

[0001] The invention belongs to the technical field of electrolytic capacitor production, and specifically relates to an electrolytic capacitor pin folding jig and a pin folding production method thereof. Background Technique

[0002] A chip capacitor usually consists of a base and a capacitor. The pins of the capacitor pass through the base and then are bent. The specific shape is shown in the structure of the publicly known technical document "CN216902561U, a chip capacitor", which is a very conventional chip capacitor structure on the current market. These capacitors are generally of conventional sizes and can be produced by standard equipment; however, for some capacitors customized by customers in small batches, pin folding cannot be completed. Firstly, it is impossible to specifically order equipment for small batch orders because the cost is very high. Therefore, only manual pin folding operations can be adopted, and the work efficiency is also very low.

[0003] In addition, even standard-sized capacitors have a common drawback, that is, the pins cannot be fixed after being bent. Then, the pins will be separated from the bottom surface of the base, and the base will become loose, causing the capacitor body to shift relative to the base, resulting in shorter welded pins and smaller welding areas. Especially for capacitors used in blasting controllers, they are prone to fall off after being impacted by shock waves, leading to control failure. The solution is usually to apply glue for fixation when combining the capacitor and the base, which will increase the production steps, reduce the production efficiency, and increase the production cost. Summary of the Invention

[0004] The purpose of the present invention is to provide an electrolytic capacitor pin folding jig and a pin folding production method thereof to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An electrolytic capacitor pin folding jig includes a base and a reset member, and the reset member is used to reset the first movable arm and the second movable arm;

[0007] The base is rotationally and slidably connected to the first movable arm and the second movable arm, the first movable arm and the second movable arm are cross-rotationally connected, and the upper ends of the first movable arm and the second movable plate are respectively provided with a first extension part and a second extension part that are close to each other;

[0008] A space for accommodating a capacitor fixing seat is formed between the first extension part and the first movable arm and between the second extension part and the second movable plate respectively;

[0009] A first pin folding block and a second pin folding block are respectively rotationally connected to the first extension part and the second extension part, a torsion spring is provided at the rotational connection, and the first pin folding block and the second pin folding block are respectively provided with pin folding inclined surfaces;

[0010] A support base that can be telescopically moved longitudinally is provided on the base, and the support base extends between the first folding foot block and the second folding foot block for supporting the capacitor fixing base.

[0011] In a further technical solution, the first folding foot block and the second folding foot block are connected to the first extension part and the second extension part through the first connecting rod and the second connecting rod respectively, and the first connecting rod and the second connecting rod can abut against the upper flange of the capacitor fixing base. At this time, the first folding foot block and the second folding foot block are flipped into the fixing base groove to flatten the pins.

[0012] In a further technical solution, both the first folding foot block and the second folding foot block are semi-circular and are inclined.

[0013] In a further technical solution, the included angle between the folding foot inclined plane and the bottom surface of the fixing base is less than 60°.

[0014] In a further technical solution, a chute is provided in the base, two first sliders are slidably connected in the chute, the two first sliders are respectively rotatably connected to the first movable arm and the second movable arm, and two adjustable abutting blocks are provided in the base, and the two abutting blocks are respectively located in front of the first sliders.

[0015] In a further technical solution, the two abutting blocks are respectively slidably connected to the chute, and a first locking structure is provided between the abutting block and the base.

[0016] In a further technical solution, a chute is provided in the base, two first sliders are slidably connected in the chute, the two first sliders are respectively rotatably connected to the first movable arm and the second movable arm, and two adjustable abutting blocks are provided in the base, and the two abutting blocks are respectively located behind the first sliders.

[0017] In a further technical solution, the two abutting blocks are respectively slidably connected to the chute, and a second locking structure is provided between the abutting block and the base.

[0018] In a further technical solution, a housing is installed on the base, a slot adapted to the width of the capacitor fixing base is provided on the housing, and a material discharging channel is formed by extending the slot outwards.

[0019] An electrolytic capacitor pin folding production method includes the above-mentioned jig;

[0020] In the first step, determine the size of the electrolytic capacitor, and then adjust the position of the second abutting block to abut against the rear side of the first slider to limit the initial state of the first movable arm and the second movable arm;

[0021] In the second step, adjust the position of the first abutting block according to the type of pin folding to limit the final moving position of the first movable arm and the second movable arm;

[0022] If it is a normal pin folding, a small space is reserved between the first abutting block and the first slider;

[0023] If the pin needs to be bent multiple times, a large space 2 is formed between the abutment block 1 and the slider 1 for the slider 1 to move;

[0024] The third step is to pass the pins of the electrolytic capacitor through the fixing seat, and preliminarily separate the pins in advance, and then place the fixing seat on the support seat. At this time, the folding foot block 1 and the folding foot block 2 are located in the middle position of the fixing seat, and the pins are located on the outside of the folding foot inclined surface;

[0025] The fourth step is to press the electrolytic capacitor downward as a whole, the upper ends of the folding foot block 1 and the folding foot block 2 are in contact with the fixed seat, and the folding foot block 1 and the folding foot block 2 are flipped with the pressing height, and the folding foot inclined surface is in contact with the pin, driving the pin to bend and fit with the bottom surface of the fixed seat, and as the height decreases, the fixed seat squeezes the extension part 1 and the extension part 2, so that the movable arm 1 and the movable arm 2 rotate relative to each other, so that the folding foot block 1 and the folding foot block 2 are separated from each other, and the folding foot inclined surface slides along the plane of the fixed seat to flatten the pin;

[0026] If the pin needs to be bent again, the height of the electrolytic capacitor will continue to be lowered, and the folding foot block 1 and the folding foot block 2 will be turned over again after reaching the edge of the fixing seat, and the pin will be bent again, and the height of the electrolytic capacitor will continue to be lowered, and the folding foot block 1 and the folding foot block 2 will be turned over again to enter the groove on the upper end surface of the fixing seat, and the pin will be bent again, so that the pin forms a "C"-shaped foot and is fixed to the fixing seat;

[0027] Step 5. Remove the electrolytic capacitor with folded legs from the fixture.

[0028] Beneficial effects of the present invention:

[0029] The present invention can adapt to all chip capacitor pin bending operations within a certain size range by turning over and bending the pins with the folding foot block, that is, both standard sizes and customized sizes can be produced within a certain size range, which is more advantageous for small batch production. Many small batch customized products are not often available and may only be produced once. The use of the jig does not require changes to the structure of the equipment, and the cost is lower;

[0030] Moreover, during the pin bending process, pressure is applied to the capacitor to keep the capacitor and the fixing seat in a compact state, and there will be no relative displacement during the bending process, so that the structure of the chip capacitor after the pin bending operation is completed is more compact, and there will be no gap floating.

[0031] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 : A three-dimensional structural diagram of the present invention.

[0033] Figure 2 : Internal structure of the present invention Figure 1 .

[0034] Figure 3 : Internal structure of the present invention Figure 2 .

[0035] Figure 4 : Structural diagram of the bottom of the chip capacitor of the present invention.

[0036] Figure 5 : Schematic diagram of the three-dimensional folded legs of the chip capacitor of the present invention.

[0037] Reference numerals: 11 - base, 12 - reset member, 13 - support base, 14 - chute, 15 - slider one, 161 - abutting block one, 162 - locking structure one, 171 - abutting block two, 172 - locking structure two, 181 - outer shell, 182 - slot, 183 - material discharging channel, 31 - movable arm one, 32 - movable arm two, 41 - extension part one, 42 - extension part two, 51 - folded leg block one, 52 - folded leg block two, 53 - torsion spring, 61 - capacitor, 62 - fixing base, 63 - flange, 64 - groove, 65 - through hole, 66 - pin. Detailed implementation manners

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] Please refer to Figures 1-5 ;

[0040] The jig of the present invention aims to realize the folded leg treatment of all chip capacitors 61 within a certain size range, especially for non-standard size chip capacitors 61. The folded leg operation can be completed more efficiently. In addition, the present invention also proposes a new folded leg structure for the chip capacitor 61. Specifically, a relatively long flat pin 66 is adopted, and then the jig is used for the folded leg operation, so that the pin 66 forms a "C"-shaped wrapped leg to fix the fixing base 62. Each inflection point of the pin 66 is a fixed point, which can ensure that the capacitor 61 and the fixing base 62 will not be misaligned, improving the stability of the capacitor 61; The structure of the jig will be described below:

[0041] It includes a base 11 and a reset member 12, and the reset member 12 is used to reset the first movable arm 31 and the second movable arm 32; the base 11 is rotationally and slidably connected to the first movable arm 31 and the second movable arm 32, and the first movable arm 31 and the second movable arm 32 are cross-rotationally connected. In this embodiment, there are various ways to arrange the reset member 12. For example, the reset member 12 is a tension spring, and its two ends are respectively connected to the first movable arm 31 and the second movable arm 32. When the first movable arm 31 and the second movable arm 32 need to be reset when in the unfolded state, a pulling force is applied to both of them through the tension spring to make them approach each other. Or several springs can be respectively arranged between the lower ends of the first movable arm 31 and the second movable arm 32 and the base 11. When the first movable arm 31 and the second movable arm 32 need to be reset when in the unfolded state, a pushing force is applied to the lower ends of the first movable arm 31 and the second movable arm 32 through the springs to make them move in the direction of approaching each other.

[0042] The upper ends of the first movable arm 31 and the second movable plate are respectively provided with a first extension portion 41 and a second extension portion 42 that are close to each other. Spaces for accommodating the capacitor 61 and the fixing seat 62 are respectively formed between the first extension portion 41 and the first movable arm 31 and between the second extension portion 42 and the second movable plate; a first folding block 51 and a second folding block 52 are respectively rotatably connected to the first extension portion 41 and the second extension portion 42, and a torsion spring 53 is provided at the rotational connection. Folding inclined surfaces are respectively provided on the first folding block 51 and the second folding block 52. By setting the torsion spring 53, the first folding block 51 and the second folding block 52 can maintain an inclined state in the initial state. A support seat 13 that can longitudinally expand and contract is provided on the base 11, and the support seat 13 extends between the first folding block 51 and the second folding block 52 for supporting the capacitor 61 fixing seat 62. In the initial state, the upper end of the support seat 13 is higher than the upper ends of the first folding block 51 and the second folding block 52.

[0043] It should be noted that the fixture usually has a housing 181 for protecting the internal structure. A slot 182 adapted to the width of the capacitor 61 fixing seat 62 is provided on the housing 181, and a material discharging channel 183 extends outward from the slot 182. The upper end surface of the support seat 13 also extends in the direction of the material discharging channel 183 to play a supporting role for the movement of the chip capacitor 61.

[0044] Embodiment 1;

[0045] When it is necessary to fold the pins of a common chip capacitor 61, first pass the pins 66 of the capacitor 61 through the fixing base 62, and then check the positions of the pins 66 to avoid crossing. If crossing occurs, the pins 66 need to be separated so that the space between the two pins 66 can allow the upper end of the support base 13 to enter. Then, place the combined chip capacitor 61 into the jig, making the fixing base 62 contact the upper end face of the support base 13. In this embodiment, since the slot 182 can limit the position of the fixing base 62, there is no need to deliberately align the placement position of the capacitor 61. After the fixing base 62 is placed in the slot 182, the upper end of the support base 13 contacts the lower end face of the fixing base 62 and is located between the through holes 65 of the fixing base 62, and will not block the pins 66.

[0046] The pin folding block one 51 and the pin folding block two 52 are arranged as close as possible to the support base 13. Preferably, the upper ends of the pin folding block one 51 and the pin folding block two 52 correspond to the through holes 65 of the fixing base 62. At the same time, the two pins 66 are respectively in contact with the inclined surfaces of the pin folding block one 51 and the pin folding block two 52, and form a preliminary inclined angle under the guidance of the inclined surfaces. Then, apply pressure to the upper end of the capacitor 61 to make it move downward. This is not only required for the operation process of the jig, but also to ensure the position fixation of the capacitor 61 and the fixing base 62 by applying pressure to the capacitor 61, so that there is no deviation between the capacitor 61 and the fixing base 62 during the pin folding process.

[0047] While applying pressure to the upper end of the capacitor 61, the support base 13 will move downward, causing the overall chip capacitor 61 to move downward. The upper ends of the pin folding block one 51 and the pin folding block two 52 contact the bottom surface of the fixing base 62. Then, as the position of the chip capacitor 61 continues to drop, the pin folding block one 51 and the pin folding block two 52 will flip, making the inclined surfaces parallel to the bottom surface of the fixing base 62. During the flipping process, the pins 66 will be bent to make the pins 66 closely adhere to the bottom surface of the fixing base 62. It should be noted that since the pins 66 are flat, they will not swing, and the torsion spring 53 has a large torsion force.

[0048] Since the pin folding block one 51 and the pin folding block two 52 are rotationally connected to the extension part one 41 and the extension part two 42, although the inclined surfaces are completely in contact with the pins 66 after the pin folding block one 51 and the pin folding block two 52 flip, the stress points are at the connection between the pin folding blocks and the extension parts. After the chip capacitor 61 continues to move downward, the extension part one 41 and the extension part two 42 are respectively squeezed, thereby causing the movable arm one 31 and the movable arm two 32 to open. The lower ends of the movable arm one 31 and the movable arm two 32 will rotate relative to the base 11 and slide away from each other, and the extension part one 41 and the extension part two 42 will also move away from each other. Finally, the pin folding block one 51 and the pin folding block two 52 slide away from each other to smooth the pins 66, so as to use the upward lifting of the support base 13 to reset and eject the folded chip capacitor 61.

[0049] Example 2;

[0050] It is necessary to form the pin 66 into a shape similar to "C" to wrap the fixing base 62. The pin 66 is relatively long, and the previous process is the same as that in the first embodiment, so it will not be elaborated here. After that, the chip capacitor 61 continues to move downward, causing the folding block one 51 and the folding block two 52 to continue sliding toward the edge of the fixing base 62. When the folding block one 51 and the folding block two 52 reach the edge of the fixing base 62, and after the support point formed by the folding block and the extension part is separated from the fixing base 62, under the action of the reset part 12, the movable arm one 31 and the movable arm two 32 contract. This will not only make the extension part one 41 and the extension part two 42 approach each other, but also slightly lift the heights of the extension part one 41 and the extension part two 42. Then, the folding block one 51 and the folding block two 52 are flipped again to be parallel to the side wall of the fixing base 62, and at the same time, it will drive the pin 66 to be bent again to closely adhere to the side surface of the fixing base 62.

[0051] After that, the chip capacitor 61 continues to move downward. Under the action of the reset part 12, the folding block one 51 and the folding block two 52 maintain their current states, causing the folding block one 51 and the folding block two 52 to continue sliding toward the upper edge of the side wall of the fixing base 62. It should be noted that whether the folding block one 51 and the folding block two 52 slide depends on the height of the upper edge of the second side wall of the fixing base 62. Generally, the thickness of the fixing base 62 does not exceed the length of the folding block. When the folding block one 51 and the folding block two 52 reach the upper edge of the fixing base 62, and after the support point formed by the folding block and the extension part is separated from the upper edge of the side wall of the fixing base 62, under the action of the reset part 12, the movable arm one 31 and the movable arm two 32 contract again, making the extension part one 41 and the extension part two 42 approach each other. Then, the folding block one 51 and the folding block two 52 are flipped again to be parallel to the upper end surface of the fixing base 62, and at the same time, it will drive the pin 66 to be bent again to closely adhere to the upper end surface of the fixing base 62, completing the foot wrapping and bending. In this state, both ends of the fixing base 62 will enter the space formed between the extension part one 41 and the extension part two 42 and the movable arm one 31 and the movable plate two respectively. This space mainly serves as an avoidance space.

[0052] Preferably, after the fixing base 62 and the capacitor 61 are combined, only a small part of the upper end surface of the fixing base 62 is exposed. Therefore, only a small part of the pin 66 needs to be bent to the upper end surface of the fixing base 62. In order to be able to complete the bending of the pin 66, the position near the lower end of the folding block is rotationally connected to the extension part, and only a small part protrudes, so that the support point can be located above the upper end surface of the fixing base 62, enabling the folding block to be flipped smoothly to bend the pin 66. After completing the folding operation, it is necessary to continuously apply pressure to the chip capacitor 61 to maintain the current state, and then make it slide out from the unloading channel 183.

[0053] Of course, since the portion of the pin 66 located on the upper end surface of the fixing seat 62 may be lifted up, after the chip capacitor 61 is removed from the fixture by folding the pins, a tool can be used to flatten this portion of the pin 66. This operation can be performed manually.

[0054] It should be noted that the support seat 13 has a reset function after being lowered. The folding foot process in this embodiment will not occur too quickly, so a small air spring can be used as a support to achieve a slower lifting process, so that the reset member 12 has enough time to drag the movable wall 1 and the movable arm 2 32 to move, and the folding foot block to flip, which will not have much impact on small-batch production.

[0055] The present invention can adapt to the bending operation of the pins 66 of all chip capacitors 61 within a certain size range by turning over the bent pins 66 with the folding foot block, that is, both standard sizes and customized sizes can be produced within a certain size range, which is more advantageous for small batch production. Many small batch customized products are not often available and may only be produced once. The use of this jig does not require the structure of the equipment to be modified, and the cost is lower;

[0056] Moreover, during the bending process of the pin 66, pressure is applied to the capacitor 61 to keep the capacitor 61 and the fixing seat 62 in a compact state, and no relative displacement occurs during the bending process. After the folding operation is completed, the structure of the chip capacitor 61 is more compact, and there is no gap floating.

[0057] The jig of the present invention has two production modes for users to choose from, which are more functional. One is conventional flat-foot bending, and the other is the proposed "C"-shaped foot bending. The second bending method of the pin 66 is more conducive to fixing the position between the fixing seat 62 and the capacitor 61. Each inflection point is a fixed point. There is no need to inject glue into the capacitor 61 and the fixing seat 62, which reduces the production steps and reduces the cost.

[0058] Based on the further expansion of the above-mentioned embodiment 1 and embodiment 2, the folding foot block 1 51 and the folding foot block 2 52 are both semicircular and inclined, and the angle between the folding foot inclined surface and the bottom surface of the fixing seat 62 is less than 60°.

[0059] Based on the further expansion of the second embodiment, in the actual product, a flange 63 is generally provided on the fixing seat 62, which will affect the bending of the pin 66, and the folding foot block 1 51 and the folding foot block 2 52 are connected to the extension part 1 41 and the extension part 2 42 through the connecting rod 1 and the connecting rod 2 respectively. When the pin 66 is bent toward the upper end surface of the fixing seat 62, the connecting rod 1 and the connecting rod 2 will conflict with the flange 63 on the upper end surface of the capacitor 61 fixing seat 62, and the overlapping height of the folding foot block and the pin 66 is equal to the height of the flange 63.

[0060] In addition, a chute 14 is provided in the base 11. Two first sliders 15 are slidably connected in the chute 14. The two first sliders 15 are respectively rotatably connected to the first movable arm 31 and the second movable arm 32. When the chip capacitor 61 applies a downward pressure to the first extension part 41 and the second extension part 42, the first extension part 41 and the second extension part 42 tend to move downward, reducing the overall height. At this time, the first movable arm 31 and the second movable arm 32 will rotate and separate from each other. That is, when the heights of the first extension part 41 and the second extension part 42 decrease, they will move away from each other. At this time, the first movable arm 31 and the second movable arm 32 will rotate relative to the first sliders 15 and simultaneously push the first sliders 15 to slide in the base 11;

[0061] Two adjustable first abutting blocks 161 are provided in the base 11. The two first abutting blocks 161 are respectively located on the front side of the first sliders 15. Specifically, the adjustable method can be that a plurality of jacks are provided on the side wall of the base 11 along the sliding direction of the first sliders 15. By changing the positions of the first abutting blocks 161 in different jacks, the moving distance of the first sliders 15 can be limited; alternatively, the two first abutting blocks 161 are respectively slidably connected to the chute 14. A first locking structure 162 is provided between the first abutting blocks 161 and the base 11. When adjustment is required, unlock it and then slide the first abutting blocks 161 to change their positions, and then fix their current positions through the first locking structure 162;

[0062] When chip capacitors 61 of certain specifications only require ordinary leg folding, by changing the positions of the first abutting blocks 161 to make them as close to the first sliders 15 as possible, during the working process, the first sliders 15 will only move a short distance before contacting the first abutting blocks 161, preventing the first extension part 41 and the second extension part 42 from further descending. After the leg folding is completed, release the chip capacitor 61, and the first movable arm 31 and the second movable arm 32 will reset to lift the first extension part 41 and the second extension part 42 upward. At the same time, cooperating with the support base 13, the chip capacitor 61 can be ejected upward.

[0063] In addition, the first abutting blocks 161 can also be used to adjust the initial positions of the first movable arm 31 and the second movable arm 32. For example, for smaller-sized chip capacitors 61, the length of the leg folding block has covered the length of the leg folding of the lead 66. However, in the original initial state, the upper end of the leg folding block does not correspond to the through hole 65 of the base 11. Therefore, by first moving the positions of the two first sliders 15 closer to each other, the first movable arm 31 and the second movable arm 32 will contract, and then the first extension part 41 and the second extension part 42 will move closer to each other. The first leg folding block 51 and the second leg folding block 52 will also move closer to each other, reducing the distance between the upper ends of the first leg folding block 51 and the second leg folding block 52, so as to correspond to the through hole 65 of the smaller-sized chip capacitor 61.

[0064] In another embodiment, a chute 14 is provided in the base 11. Two first sliders 15 are slidably connected in the chute 14. The two first sliders 15 are respectively rotatably connected to the first movable arm 31 and the second movable arm 32. When the chip capacitor 61 applies a downward pressure to the first extension portion 41 and the second extension portion 42, the first extension portion 41 and the second extension portion 42 tend to move downward, causing the overall height to decrease. At this time, the first movable arm 31 and the second movable arm 32 will rotate and separate from each other. That is, when the heights of the first extension portion 41 and the second extension portion 42 decrease, they will move away from each other. At this time, the first movable arm 31 and the second movable arm 32 will rotate relative to the first slider 15 and simultaneously push the first slider 15 to slide in the base 11;

[0065] Two adjustable second abutting blocks 171 are provided in the base 11. The two second abutting blocks 171 are respectively located at the rear sides of the first sliders 15. The specific adjustable manner can be that a plurality of jacks are provided on the side wall of the base 11 along the sliding direction of the first sliders 15. By changing the positions of the second abutting blocks 171 in different jacks, the moving distance of the first sliders 15 can be limited; alternatively, the two second abutting blocks 171 are respectively slidably connected to the chute 14. A second locking structure 172 is provided between the second abutting blocks 171 and the base 11. When adjustment is required, unlock and then slide the second abutting blocks 171 to change their positions, and then fix their current positions through the second locking structure 172;

[0066] When the folding operation is to be performed on a capacitor 61 with a larger specification, the distance between the upper ends of the first folding block 51 and the second folding block 52 in the initial state is less than the distance between the two passing holes 65, which affects the folding effect. Therefore, by adjusting the position of the second abutting block 171, that is, pushing the second abutting block 171 forward, the first slider 15 slides forward and the first movable arm 31 and the second movable arm 32 open, and then the distance between the upper ends of the first folding block 51 and the second folding block 52 is enlarged, and finally the position of the second abutting block 171 is locked;

[0067] In addition, a first abutting block 161 and a second abutting block 171 can be provided at the same time. In this embodiment, the reset member 12 is a spring, which is provided between the first abutting block 161 and the slider. When it is necessary to reduce the distance between the upper ends of the first folding block 51 and the second folding block 52 and it is not necessary to form a "C"-shaped foot wrapping, although the first abutting block 161 can push the first slider 15 to move through the spring, there is still a large space between the first abutting block 161 and the first slider 15, and the moving distance of the first slider 15 cannot be limited during operation. At this time, it is necessary to adjust the position of the second abutting block 171 at the rear to limit the position of the first slider 15 and then move the position of the first abutting block 161, and at the same time, the spring can be compressed. In short, different usage methods can be combined through the mutual cooperation of the first abutting block 161 and the second abutting block 171.

[0068] There is also a housing 181 installed on the base 11. A slot 182 adapted to the width of the base 11 of the capacitor 61 is provided on the housing 181. A material discharging channel 183 extends outward from the slot 182. The outer cover can be wholly or partially replaceable, and the main part is to enable the slot 182 to match fixing seats 62 of different sizes.

[0069] According to the above fixture, the present invention provides a method for bending the leads of an electrolytic capacitor 61.

[0070] First step, determine the size of the electrolytic capacitor 61, and then adjust the position of the second abutting block 171 to abut against the rear side of the first slider 15, for defining the initial states of the first movable arm 31 and the second movable arm 32.

[0071] Second step, adjust the position of the first abutting block 161 according to the type of lead bending, for defining the final moving positions of the first movable arm 31 and the second movable arm 32.

[0072] If it is a normal lead bending, a small space one is reserved between the first abutting block 161 and the first slider 15.

[0073] If the lead 66 needs to be bent multiple times to form a "C"-shaped wrapped lead, a large space two for the first slider 15 to move is formed between the first abutting block 161 and the first slider 15. It should be noted that in the above embodiment, if the reset member 12 is arranged between the first slider 15 and the first abutting block 161, then the small space one is the position after the spring is compressed, and the large space two is the position where the spring is in a stretched state.

[0074] Third step, the lead 66 of the electrolytic capacitor 61 passes through the fixing seat 62, avoiding the crossing of the leads 66. Before the operation, manually detect the state of the leads 66, and preliminarily separate the leads 66 in advance. Then place the fixing seat 62 on the supporting seat 13. At this time, the first lead bending block 51 and the second lead bending block 52 are located at the middle position of the fixing seat 62, and the leads 66 are located outside the lead bending inclined surface.

[0075] Fourth step, press down the electrolytic capacitor 61 as a whole. The upper ends of the first lead bending block 51 and the second lead bending block 52 abut against the fixing seat 62, and as the pressing height increases, the first lead bending block 51 and the second lead bending block 52 turn over. The lead bending inclined surface abuts against the lead 66, driving the lead 66 to bend and fit against the bottom surface of the fixing seat 62. As the height decreases, the fixing seat 62 squeezes the first extension part 41 and the second extension part 42, so that the first movable arm 31 and the second movable arm 32 rotate relatively, causing the first lead bending block 51 and the second lead bending block 52 to move away from each other, and the lead bending inclined surface slides along the plane of the fixing seat 62 to smooth the lead 66.

[0076] If the pin 66 needs to be bent again, continue to lower the height of the electrolytic capacitor 61. After the pin bending block 1 51 and the pin bending block 2 52 reach the edge of the fixing base 62, they flip again and drive the pin 66 to be bent again. Continue to lower the height of the electrolytic capacitor 61, and the pin bending block 1 51 and the pin bending block 2 52 flip again and enter the groove 64 on the upper end surface of the fixing base 62, and drive the pin to be bent again, so that the pin 66 forms a "C"-shaped wrapped pin to be fixed to the fixing base 62;

[0077] Step 5: Take out the electrolytic capacitor 61 with the pin bending completed from the fixture.

[0078] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0079] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A folding fixture for an electrolytic capacitor (61), characterized in that: It comprises a base (11) and a reset member (12), wherein the reset member (12) is used to reset a movable arm 1 (31) and a movable arm 2 (32); The base (11) is rotatably and slidably connected to the movable arm 1 (31) and the movable arm 2 (32); the movable arm 1 (31) and the movable arm 2 (32) are cross-rotatably connected; and the upper ends of the movable arm 1 (31) and the movable plate 2 are respectively provided with an extension part 1 (41) and an extension part 2 (42) close to each other; The extension part 1 (41) and the extension part 2 (42) respectively form a space for accommodating a capacitor (61) fixing seat (62) between the movable arm 1 (31) and the movable plate 2; A folding foot block (51) and a folding foot block (52) are rotatably connected on the extension part 1 (41) and the extension part 2 (42), respectively, a torsion spring (53) is provided at the rotation connection, and a folding foot inclined surface is provided on the folding foot block (51) and the folding foot block (52) respectively; The base (11) is provided with a longitudinally telescopic support seat (13), which extends between the first folding foot block (51) and the second folding foot block (52) and is used to support the capacitor (61) fixing seat (62).

2. The electrolytic capacitor (61) leg folding jig according to claim 1, characterized in that: The folding foot block 1 (51) and the folding foot block 2 (52) are connected to the extension part 1 (41) and the extension part 2 (42) through the connecting rod 1 and the connecting rod 2 respectively. The connecting rod 1 and the connecting rod 2 can contact the upper end surface flange (63) of the capacitor (61) fixing seat (62). At this time, the folding foot block 1 (51) and the folding foot block 2 (52) are turned over and enter the groove (64) of the fixing seat (62) to flatten the pin (66).

3. The electrolytic capacitor (61) leg folding jig according to claim 1, characterized in that: The folding foot block 1 (51) and the folding foot block 2 (52) are both semicircular and inclined.

4. The electrolytic capacitor (61) leg folding jig according to claim 1, characterized in that: The angle between the folding foot inclined surface and the bottom surface of the fixing seat (62) is less than 60 degrees.

5. The electrolytic capacitor (61) leg folding jig according to claim 1, characterized in that: The base (11) is provided with a slide groove (14), and two sliders (15) are slidably connected in the slide groove (14). The two sliders (15) are rotatably connected to the movable arm (31) and the movable arm (32) respectively. Two adjustable abutment blocks (161) are provided in the base (11), and the two abutment blocks (161) are respectively located at the front side of the slider (15).

6. The electrolytic capacitor (61) leg folding jig according to claim 5, characterized in that: The two abutment blocks (161) are respectively slidably connected to the slide grooves (14), and a locking structure (162) is provided between the abutment blocks (161) and the base (11).

7. An electrolytic capacitor (61) leg folding jig according to claim 1 or 5, characterized in that: The base (11) is provided with a slide groove (14), and two sliders (15) are slidably connected in the slide groove (14). The two sliders (15) are rotatably connected to the movable arm (31) and the movable arm (32) respectively. Two adjustable abutment blocks (171) are provided in the base (11), and the two abutment blocks (171) are respectively located at the rear side of the slider (15).

8. The electrolytic capacitor (61) leg folding jig according to claim 7, characterized in that: The two second abutment blocks (171) are respectively slidably connected to the slide grooves (14), and a second locking structure (172) is provided between the second abutment block (171) and the base (11).

9. The electrolytic capacitor (61) leg folding jig according to claim 1, characterized in that: A shell (181) is installed on the base (11), and a slot (182) adapted to the width of the capacitor (61) fixing seat (62) is provided on the shell (181), and the slot (182) extends outward to form a material return channel (183).

10. A method for producing a folded leg of an electrolytic capacitor (61), comprising the jig according to claim 7, characterized in that: The first step is to determine the size of the electrolytic capacitor (61), and then adjust the position of the second abutment block (171) so that it abuts against the rear side of the slider (15) to define the initial state of the movable arm (31) and the movable arm (32); The second step is to adjust the position of the first abutment block (161) according to the type of the folding foot, so as to limit the final moving position of the first movable arm (31) and the second movable arm (32); If it is a common folding foot, a small space 1 is reserved between the abutment block 1 (161) and the slider 1 (15); If the pin (66) needs to be bent multiple times, a large space (2) is formed between the abutment block (161) and the slider (15) for the slider (15) to move; In the third step, the pin (66) of the electrolytic capacitor (61) passes through the fixing seat (62), and the pin (66) is preliminarily separated in advance, and then the fixing seat (62) is placed on the support seat (13), at which time the folding foot block 1 (51) and the folding foot block 2 (52) are located in the middle position of the fixing seat (62), and the pin (66) is located on the outer side of the folding foot inclined surface; In the fourth step, the electrolytic capacitor (61) is pressed downward as a whole, the upper ends of the folding foot block 1 (51) and the folding foot block 2 (52) come into contact with the fixed seat (62), and as the pressure increases, the folding foot block 1 (51) and the folding foot block 2 (52) flip over, the folding foot inclined surface comes into contact with the pin (66), driving the pin (66) to bend and fit with the bottom surface of the fixed seat (62), and as the height decreases, the fixed seat (62) squeezes the extension part 1 (41) and the extension part 2 (42), so that the movable arm 1 (31) and the movable arm 2 (32) rotate relative to each other, so that the folding foot block 1 (51) and the folding foot block 2 (52) move away from each other, and the folding foot inclined surface slides along the plane of the fixed seat (62) to smooth the pin (66); If the pin (66) needs to be bent again, the height of the electrolytic capacitor (61) continues to be lowered, and the folding foot block (51) and the folding foot block (52) reach the edge of the fixed seat (62) and then turn over again, and drive the pin (66) to bend again, and continue to lower the height of the electrolytic capacitor (61), and the folding foot block (51) and the folding foot block (52) turn over again and enter the groove (64) on the upper end surface of the fixed seat (62), and drive the pin to bend again, so that the pin (66) forms a "C"-shaped foot and is fixed to the fixed seat (62); Step 5: Take the electrolytic capacitor (61) with its legs folded out from the fixture.

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