Capacitor external electrode column fixing clamp

Abstract

The utility model discloses a fixing clamp for an external electrode column of a capacitor. The fixing clamp comprises a fixing frame; the outer sleeve is fixedly connected to the outer part of the fixed frame in a sleeving manner; the electrode column is preliminarily mechanically clamped through continuous approaching of the clamping pieces, so that the position of the electrode column is preliminarily fixed, the through hole in the connecting pipe moves along with the clamping pieces to move from the outside of the outer sleeve to the inside of the outer sleeve, and after the through hole moves to the inside of the outer sleeve, the electrode column is clamped by the clamping pieces. At the moment, the adsorption holes and the inner space of the outer sleeve form relatively closed space change through the connecting pipes and the through holes, so that negative pressure can be formed at the adsorption holes, the negative pressure at the adsorption holes can generate adsorption force on the electrode columns outside the capacitor, the electrode columns are further tightly adsorbed in the multiple sets of clamping pieces, and the electrode columns and the mechanical clamping force of the clamping pieces act together; the external electrode column of the capacitor is firmly fixed, and it is ensured that the electrode column does not displace or shake in the subsequent operation processes of machining, detection and the like.

Description

Technical Field

[0001] This utility model relates to the field of capacitor manufacturing technology, and in particular to a capacitor external electrode post fixing clamp. Background Technology

[0002] Capacitors are widely used in electronic devices, and their performance directly affects the operation of these devices. As a key component connecting the capacitor to the external circuit, the external electrode post needs to be stably and precisely fixed during the welding, testing, and other processing stages to ensure the reliability of the connection and the accuracy of the test data.

[0003] Currently, existing technologies mostly rely on mechanical clamping when fixing external electrode posts. However, this method has limitations. The clamping force generated by the mechanical structure alone is insufficient to resist external interference factors such as vibration and minor impacts during processing. In actual operation, even extremely small displacements or shaking can cause uneven solder joints or incomplete soldering during welding, leading to deviations in test data and ultimately affecting the overall performance and quality of the capacitor. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] A capacitor external electrode post fixing clamp, comprising:

[0006] Fixed frame;

[0007] The outer sleeve is fixedly fitted onto the outside of the fixed frame;

[0008] A limiting assembly includes multiple sets of clamping members with accommodating cavities slidably disposed within the fixed frame, and a driving member disposed between the multiple sets of clamping members. A connecting pipe is connected to the side of each clamping member away from the driving member. The end of the connecting pipe away from the clamping member passes through the side wall of the fixed frame and the outer sleeve in sequence and extends to the outside of the outer sleeve. A through hole is formed on the surface of the connecting pipe. An adsorption hole is formed on the clamping member. The driving member drives the multiple sets of clamping members to move closer to each other in the radial direction of the fixed frame, so that the multiple sets of clamping members retract and the through hole moves into the outer sleeve. The driving member also drives the multiple sets of clamping members to move further away from each other in the radial direction of the fixed frame, so that the multiple sets of clamping members open and the through hole moves to the outside of the outer sleeve.

[0009] As an improvement to the above technical solution, the clamping member includes a wedge-shaped portion and an integrally formed clamping portion disposed on the top of the wedge-shaped portion. The adsorption hole is opened on the clamping portion. Multiple sets of the clamping portions surround to form a clamping area, and multiple sets of the wedge-shaped portions surround to form a pushing area.

[0010] As an improvement to the above technical solution, the driving component includes a conical head disposed in the pushing area, and an electric push rod is disposed at the bottom of the conical head.

[0011] As an improvement to the above technical solution, a spring is wound around the surface of the connecting tube between the clamping member and the inner wall of the fixing frame.

[0012] As an improvement to the above technical solution, a negative pressure pipe is connected to one side of the bottom of the outer sleeve.

[0013] The beneficial effects of this utility model are:

[0014] As the clamping components move closer together, the electrode post is initially mechanically clamped, confining it within a certain space and fixing its position. Simultaneously, the through-hole on the connecting tube moves from outside the outer sleeve to inside. Once inside, the connection between the outer sleeve, the connecting tube, and the clamping components creates a relatively closed space through the connecting tube, the through-hole, and the space inside the outer sleeve. This creates a negative pressure at the suction hole, which exerts an adsorption force on the capacitor's outer electrode post, further securing it tightly within the clamping components. This, combined with the mechanical clamping force, ensures a firm fixation of the capacitor's outer electrode post, preventing displacement or shaking during subsequent processing and testing. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 This is a top view of the overall structure of this utility model.

[0018] Reference numerals: 10, fixing frame; 20, wedge-shaped part; 21, clamping part; 211, suction hole; 22, spring; 23, connecting tube; 231, through hole; 30, conical head; 31, electric push rod; 40, outer sleeve. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] A capacitor external electrode post fixing clamp, comprising:

[0021] Fixed frame 10;

[0022] The outer sleeve 40 is fixedly fitted onto the outside of the fixed frame 10;

[0023] The limiting component includes multiple sets of clamping members with accommodating cavities slidably disposed within the fixed frame 10, and a driving member disposed between the multiple sets of clamping members. A connecting pipe 23 is connected to the side of the clamping member away from the driving member. The end of the connecting pipe 23 away from the clamping member passes through the side wall of the fixed frame 10 and the outer sleeve 40 in sequence and extends to the outside of the outer sleeve 40. A through hole 231 is opened on the surface of the connecting pipe 23. An adsorption hole 211 is opened on the clamping member. The driving member drives the multiple sets of clamping members to move closer to each other in the radial direction of the fixed frame 10, so that the multiple sets of clamping members retract and the through hole 231 moves into the outer sleeve 40. The driving member also drives the multiple sets of clamping members to move further away from each other in the radial direction of the fixed frame 10, so that the multiple sets of clamping members open and the through hole 231 moves to the outside of the outer sleeve 40.

[0024] The outer sleeve 40 is under negative pressure. When it is necessary to fix the outer electrode post of the capacitor, the driving mechanism is activated. The driving mechanism drives multiple sets of clamping components to move towards each other in the radial direction of the fixing frame 10. During this process, the multiple sets of clamping components gradually retract and move closer to the outer electrode post of the capacitor to achieve initial clamping. As the clamping components move closer, they perform initial mechanical clamping on the electrode post, confining it within a certain space and initially fixing its position. At the same time as the clamping components move towards each other, the through hole 231 on the connecting tube 23 also moves, from outside the outer sleeve 40 to inside the outer sleeve 40. After the through hole 231 moves into the outer sleeve 40, due to the communication between the outer sleeve 40, the connecting tube 23, and the clamping components, the adsorption hole 211 forms a relatively closed spatial change with the inner space of the outer sleeve 40 through the connecting tube 23, the through hole 231, and the connecting tube 23. Therefore, the adsorption hole 211... A negative pressure is formed at the attachment hole 211. This negative pressure exerts an adsorption force on the outer electrode post of the capacitor, further adsorbing the electrode post tightly into the multiple sets of clamping components. Together with the mechanical clamping force of the clamping components, the outer electrode post of the capacitor is firmly fixed, ensuring that the electrode post will not shift or shake during subsequent processing, testing, or other operations. When the clamping components move away from each other, the through hole 231 on the connecting tube 23 moves the outer sleeve 40 of the moving post, allowing the adsorption hole 211 to communicate with the external environment. This prevents the adsorption hole 211 from sucking in dust, debris, and other impurities from the surrounding environment due to the negative pressure, thus affecting the adsorption and fixing effect on the electrode post in the next operation.

[0025] In one embodiment, the clamping member includes a wedge-shaped portion 20 and an integrally formed clamping portion 21 disposed on the top of the wedge-shaped portion 20. The adsorption hole 211 is opened on the clamping portion 21. Multiple sets of clamping portions 21 surround to form a clamping area. Multiple sets of wedge-shaped portions 20 surround to form a pushing area. The driving member includes a conical head 30 disposed in the pushing area. An electric push rod 31 is disposed at the bottom of the conical head 30. A spring 22 is wound on the surface of the connecting tube 23 between the clamping member and the inner wall of the fixing frame 10.

[0026] Specifically, when it is necessary to fix the external electrode post of the capacitor, the electric push rod 31 is activated. The electric push rod 31 pushes the conical head 30 upward, causing it to rise within the pushing area. Since the wedge-shaped part 20 is adapted to the conical head 30, the rise of the conical head 30 will push multiple sets of wedge-shaped parts 20 to move away from each other along the radial direction of the fixing frame 10, compressing the spring 22. Because the wedge-shaped part 20 and the clamping part 21 are integrally formed, the movement of the wedge-shaped part 20 drives the clamping part 21 to move synchronously. Multiple sets of clamping parts 21 open. When the electrode post is located within the clamping area, the electric push rod 31 drives the conical head 30 to move downward. Under the restoring elastic force of the spring 22, the spring 22 pushes the clamping parts to move closer to each other, so that multiple sets of clamping parts 21 clamp the electrode post, realizing the initial mechanical clamping of the electrode post, restricting the electrode post within the clamping area, and initially fixing its position.

[0027] In one embodiment, a negative pressure pipe is connected to one side of the bottom of the outer sleeve 40. The negative pressure pipe can be connected to an external negative pressure generating device, such as a vacuum pump. When the vacuum pump is started, it will evacuate the inside of the outer sleeve 40 through the negative pressure pipe. During the process of fixing the electrode column with the clamp, the negative pressure pipe is continuously connected to the external negative pressure source. By continuously evacuating the air, the negative pressure inside the outer sleeve 40 is kept stable. In actual operation, there may be some gas leakage. The negative pressure loss caused by these factors can be replenished in time to ensure the stability and reliability of the adsorption force and ensure that the electrode column can be firmly fixed.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A capacitor outer electrode post fixing jig characterized by, The utility model relates to a kind of fixed frame (10) and the sleeve (40) of outer sleeve of fixed frame (10) outside fixed sleeve, including: Fixed frame (10); Outer sleeve (40) is fixed sleeve to the outside of the fixed frame (10); Limiting component, the limiting component includes multiple groups of clamping pieces with containing cavity slidingly arranged in the fixed frame (10) and driving piece arranged between the multiple groups of clamping pieces, the side of the clamping piece away from driving piece is connected with connection pipe (23) being communicated, the end of the connection pipe (23) away from clamping piece sequentially penetrates the side wall of fixed frame (10) and outer sleeve (40) and extends to the outside of outer sleeve (40), the surface of the connection pipe (23) is provided with through hole (231), the clamping piece is provided with adsorption hole (211), the driving piece drives multiple groups of the clamping piece and moves in the direction of approaching each other along the radial direction of fixed frame (10), so that multiple groups of clamping piece are gathered and through hole (231) moves to the inside of outer sleeve (40), the driving piece drives multiple groups of the clamping piece and moves in the direction of moving away from each other along the radial direction of fixed frame (10), so that multiple groups of clamping piece are opened and through hole (231) moves to the outside of outer sleeve (40).

2. The capacitor outer electrode post fixing clamp according to claim 1, characterized in that: The clamping piece includes wedge portion (20) and the clamping portion (21) of integrally formed and arranged on the top of the wedge portion (20), the adsorption hole (211) is arranged on the clamping portion (21), and multiple groups of the clamping portion enclose to form clamping area, and multiple groups of the wedge portion (20) enclose to form pushing area.

3. The capacitor outer electrode post fixing clamp according to claim 2, characterized in that: The driving piece includes conical head (30) arranged in pushing area, and the bottom of the conical head (30) is provided with electric push rod (31).

4. The capacitor outer electrode post fixing clamp according to claim 1, characterized in that: The surface of the connection pipe (23) is wound with spring (22) between clamping piece and the inner wall of fixed frame (10).

5. The capacitor outer electrode post fixing clamp according to claim 4, characterized in that: The bottom side of the outer sleeve (40) is connected with negative pressure pipe.

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