Positioning clamp for welding capacitor shell
By designing a capacitor housing welding fixture with a multi-directional adjustable structure, the problem of traditional fixtures being unable to adjust the angle was solved, enabling flexible positioning and stable clamping of the capacitor housing, and improving welding efficiency and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU COMPEST TECHNOLOGY CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional capacitor casing welding fixtures cannot adjust the angle, which affects welding efficiency, and the single extrusion clamping cannot meet the welding clamping requirements between plates.
A multi-directional adjustment structure including a telescopic base rod, a rotating top block, a clamping motor, a steering motor, and a compression cylinder was designed. Through telescopic extension, rotation, and compression, the capacitor shell can be positioned and clamped at multiple angles to meet welding requirements.
It enables flexible angle adjustment and stable clamping of capacitor shells, improves welding efficiency and adaptability, and meets the welding needs of various shells.
Smart Images

Figure CN224196209U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of capacitor technology, specifically a positioning fixture for welding capacitor shells. Background Technology
[0002] Two conductors placed close together, with a non-conductive insulating medium sandwiched between them, constitute a capacitor. When a voltage is applied between the two plates of a capacitor, it stores electrical charge. The capacitance of a capacitor is numerically equal to the ratio of the charge on one conducting plate to the voltage between the two plates. The basic unit of capacitance is the farad (F). In circuit diagrams, a capacitor is usually represented by the letter C.
[0003] When producing capacitors, the casing needs to be welded. Traditional welding of the casing involves clamping and fixing it in a designated position, which cannot create an adjustment effect. This prevents the angle from being adjusted during welding, thus affecting welding efficiency. Furthermore, the single extrusion clamping and fixing structure cannot meet the requirements for welding between plates. Utility Model Content
[0004] The purpose of this utility model is to provide a positioning fixture for welding capacitor casings, in order to solve the problem mentioned in the background art that, in the current production process of capacitors, it is necessary to process the welding operation of the casing. The traditional method of welding the casing involves clamping and fixing it in a designated position, which cannot achieve the desired adjustment effect. This prevents the angle from being adjusted during the welding process, thus affecting the welding efficiency. Furthermore, the single extrusion clamping and fixing structure cannot meet the problem of clamping and fixing the welding between plates.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A positioning fixture for welding capacitor casings includes a telescopic base rod. Mounting side blocks are symmetrically welded to both sides of the telescopic base rod. Fixed through holes are evenly distributed on the top surface of each mounting side block. A rotating top block is abutted to the top of the telescopic base rod. A mating top plate is horizontally fixedly connected to the top of the rotating top block. A clamping motor is fixedly connected to one end of the mating top plate. A clamping top block is abutted to the top surface of the mating top plate. An inner cylinder is vertically fixedly connected to the inner side of the telescopic base rod. A steering motor is fixedly clamped to the inner wall of the telescopic base rod. A [missing information - likely a hole or opening] is located at the center of the top of the telescopic base rod. The top locking hole has a positioning inner strip evenly embedded in its inner sidewall. A rotating locking block is fixedly welded to the bottom surface of the rotating top block. A mating strip is fixedly engaged on the side of the rotating locking block. A top horizontal groove is horizontally opened on the top surface of the docking top plate. A clamping screw is horizontally inserted into the inner side of the top horizontal groove. A moving locking block is vertically welded to the bottom surface of the clamping top block. A mating screw hole is opened on the side of the moving locking block. A mating top groove is opened at the top of the clamping top block. A pressing inner plate is horizontally engaged on the inner side of the mating top groove. A pressing cylinder is fixedly connected to one side of the clamping top block.
[0007] As a preferred embodiment of this utility model: the telescopic base rod adopts a telescopic rod structure, and there are two mounting side blocks. The two mounting side blocks are fixedly and parallel to each other at the bottom of the two sides of the telescopic base rod, and the center of the bottom surface of the rotating top block is aligned with the top opening of the top card hole.
[0008] In a preferred embodiment of this utility model: the top of the rotating top block is fixedly connected to the center of the bottom surface of the docking top plate, the clamping motor is fixedly connected to the center of one end of the docking top plate, and the output end extends horizontally and is fixedly connected to one end of the clamping screw.
[0009] In a preferred embodiment of this utility model, there are two clamping top blocks, which are arranged in parallel with each other. The bottom ends of the clamping top blocks are connected to the top opening end of the top horizontal groove. The steering motor is fixedly installed on the inner side of the telescopic bottom rod near the top end, and the output end of the steering motor extends vertically upward to the inside of the top card hole. The extension end is fixedly connected to the center of the bottom end of the rotating card block.
[0010] In a preferred embodiment of this utility model: the bottom end of the rotating block is engaged with the inner side of the top locking hole, the side of the mating strip is correspondingly engaged with the side of the positioning inner strip, the top end of the moving block is fixedly connected to the center of the bottom surface of the clamping top block, and the bottom end is engaged with the inner side of the top horizontal groove.
[0011] In a preferred embodiment of this utility model: the threaded connection of the mating screw hole is provided on the outer side of the clamping screw, the mating top groove is vertically through and opened at the top center of the clamping top block, and the two sides of the mating top groove extend through the two side walls of the clamping top block to the outside in an open shape, and the output end of the extrusion cylinder is horizontally extended and fixedly connected to the center of the side of the extrusion inner plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention involves vertically connecting the telescopic base rod to a designated position, then fixing the mounting side block by bolts passing through the fixing through hole. The telescopic base rod is adjusted to a specified height by controlling the extension and retraction of the output end of the internal cylinder. After the capacitor casing is placed between the clamping top blocks, the output end of the clamping motor rotates, causing the clamping screw to rotate. This causes the clamping screw to move the moving block along the top horizontal groove towards the center, clamping and fixing the casing in place. The rotation of the steering motor causes the output end to rotate the rotating block inside the top clamping hole. The process involves the mating strip and the positioning inner strip engaging to position the rotation angle of the rotating block, allowing the top outer shell to be rotated to a specified angle to meet welding requirements. When clamping and welding two plate structures is required, the plates can be inserted into the mating top groove. Under the pressure of the side extrusion cylinder, the extrusion inner plate presses and fixes the plate. The two clamping top blocks can be adjusted to a suitable distance to meet welding requirements. The multi-directional adjustment structure allows it to be adjusted to a specified angle for welding. Furthermore, the combination of extrusion clamping and clamping positioning structures allows it to be used for clamping and welding various outer shells. Attached Figure Description
[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0015] Figure 1 This is a three-dimensional structural diagram of a positioning fixture for welding capacitor casings;
[0016] Figure 2 A three-dimensional cross-sectional view of the connection details of the telescopic base rod of a positioning clamp for welding capacitor casings is shown in the diagram.
[0017] Figure 3 A schematic diagram showing the three-dimensional connection details of a rotating top block in a positioning fixture for welding capacitor casings;
[0018] Figure 4A structural schematic diagram showing the connection details of the mating top plate of a positioning fixture for welding capacitor casings;
[0019] Figure 5 This is a structural schematic diagram showing the connection details of the clamping top block of a positioning fixture used for welding capacitor casings, viewed from the front.
[0020] In the diagram: 1. Telescopic base rod; 2. Mounting side block; 3. Fixing through hole; 4. Rotating top block; 5. Connecting top plate; 6. Clamping motor; 7. Clamping top block; 8. Inner cylinder; 9. Steering motor; 10. Top locking hole; 11. Positioning inner strip; 12. Rotating locking block; 13. Mating strip; 14. Top horizontal groove; 15. Clamping screw; 16. Moving locking block; 17. Mating screw hole; 18. Mating top groove; 19. Extruding inner plate; 20. Extruding cylinder. Detailed Implementation
[0021] Please see Figure 1 In this embodiment of the present invention, a positioning fixture for welding capacitor casings includes a telescopic base rod 1. Mounting side blocks 2 are symmetrically welded to both sides of the telescopic base rod 1. Fixed through holes 3 are evenly distributed on the top surface of the mounting side blocks 2. A rotating top block 4 is connected to the top of the telescopic base rod 1. The telescopic base rod 1 adopts a telescopic rod structure. There are two mounting side blocks 2, which are symmetrically and parallel to each other at the bottom ends of both sides of the telescopic base rod 1. The center of the bottom surface of the rotating top block 4 is connected to the top opening of the top locking hole 10. A docking top plate 5 is fixedly connected to the top of the top of the device. A clamping motor 6 is fixedly connected to one end of the docking top plate 5. The top of the rotating top block 4 is fixedly connected to the center of the bottom surface of the docking top plate 5. The clamping motor 6 is fixedly connected to the center of one end of the docking top plate 5, and its output end is horizontally extended and fixedly connected to one end of the clamping screw 15. A clamping top block 7 is connected to the top surface of the docking top plate 5. There are two clamping top blocks 7, and the two clamping top blocks 7 are arranged in parallel with each other. The bottom end of the clamping top block 7 is connected to the top opening end of the top horizontal groove 14.
[0022] Please see Figure 2-5In this embodiment of the present invention, a positioning fixture for welding capacitor casings includes an inner cylinder 8 vertically fixedly connected to the inner side of a telescopic base rod 1, a steering motor 9 fixedly clamped to the inner wall of the telescopic base rod 1, a top clamping hole 10 at the center of the top of the telescopic base rod 1, positioning inner strips 11 uniformly embedded in the inner wall of the top clamping hole 10, a steering motor 9 fixedly disposed on the inner side of the telescopic base rod 1 near the top, and the output end of the steering motor 9 extending vertically upward into the interior of the top clamping hole 10, the extended end being fixedly connected to the center of the bottom of a rotating clamping block 12, a rotating clamping block 12 fixedly welded to the bottom surface of a rotating top block 4, a mating strip 13 fixedly clamped to the side of the rotating clamping block 12, a top horizontal groove 14 horizontally opened on the top surface of the mating top plate 5, a clamping screw 15 horizontally inserted into the inner side of the top horizontal groove 14, and a moving clamping block 16 vertically welded to the bottom surface of the clamping top block 7. The bottom end of the movable locking block 12 is engaged with the inner side of the top locking hole 10. The side of the mating strip 13 is correspondingly engaged with the side of the positioning inner strip 11. The top end of the movable locking block 16 is fixedly connected to the center of the bottom surface of the clamping top block 7, and its bottom end is engaged with the inner side of the top horizontal groove 14. The side of the movable locking block 16 is provided with a mating screw hole 17. The top of the clamping top block 7 is provided with a mating top groove 18. The inner side of the mating top groove 18 is horizontally engaged with the extrusion inner plate 19. One side of the clamping top block 7 is fixedly connected with an extrusion cylinder 20. The mating screw hole 17 is threadedly connected to the outer side of the clamping screw 15. The mating top groove 18 is vertically through-hole at the center of the top of the clamping top block 7. The two sides of the mating top groove 18 extend through the two side walls of the clamping top block 7 to the outside in an open shape. The output end of the extrusion cylinder 20 extends horizontally and is fixedly connected to the center of the side of the extrusion inner plate 19.
[0023] The working principle of this utility model is as follows:
[0024] After vertically aligning the telescopic base rod 1 at the designated position, the mounting side block 2 is fixed in place by bolts passing through the fixing through hole 3. Then, by controlling the telescopic movement of the output end of the inner cylinder 8, the telescopic base rod 1 is adjusted to the designated height. After placing the capacitor shell between the clamping top blocks 7, the output end of the clamping motor 6 rotates, causing the clamping screw 15 to rotate. The clamping screw 15 then moves the moving block 16 along the top horizontal groove 14 towards the center position, thus clamping and fixing the shell between the clamping top blocks 7. The rotation of motor 9 causes the output end to drive the rotating block 12 to rotate inside the top clamping hole 10. With the mating strip 13 and the positioning inner strip 11 mating and engaging, the rotation angle of the rotating block 12 can be positioned to meet the welding requirements of rotating the top shell to a specified angle. When it is necessary to clamp and weld two plate structures, the plates can be inserted into the mating top groove 18. Under the pressure of the side extrusion cylinder 20, the extrusion inner plate 19 presses and fixes the plates. The two clamping top blocks 7 can be adjusted to a suitable distance to meet the welding requirements.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A positioning fixture for welding capacitor casings, comprising a telescopic base rod (1), characterized in that, The telescopic base rod (1) has symmetrically welded mounting side blocks (2) on both sides. The top surface of the mounting side blocks (2) is uniformly provided with fixing through holes (3). The top of the telescopic base rod (1) is connected to a rotating top block (4). The top of the rotating top block (4) is horizontally fixedly connected to a docking top plate (5). One end of the docking top plate (5) is fixedly connected to a clamping motor (6). The top surface of the docking top plate (5) is connected to a clamping top block (7). The inner side of the telescopic base rod (1) is vertically fixedly connected to an inner cylinder (8). The inner wall of the telescopic base rod (1) is fixedly clamped with a steering motor (9). The top center of the top of the telescopic base rod (1) is provided with a top clamping hole (10). The inner wall of the top clamping hole (10) is uniformly fixedly inlaid with... The rotating top block (4) is fixedly welded to the bottom surface with a positioning inner strip (11), and a rotating locking block (12) is fixedly engaged with the side of the rotating locking block (12). The top surface of the docking top plate (5) is horizontally provided with a top horizontal groove (14), and a clamping screw (15) is horizontally inserted into the inner side of the top horizontal groove (14). The bottom surface of the clamping top block (7) is vertically welded with a moving locking block (16), and a matching screw hole (17) is provided on the side of the moving locking block (16). The top of the clamping top block (7) is provided with a matching top groove (18), and a pressing inner plate (19) is horizontally engaged with the inner side of the matching top groove (18). A pressing cylinder (20) is fixedly connected to one side of the clamping top block (7).
2. A positioning fixture for welding capacitor casings according to claim 1, characterized in that, The telescopic bottom rod (1) adopts a telescopic rod structure. There are two mounting side blocks (2), and the two mounting side blocks (2) are fixedly and parallel to each other at the bottom of the two sides of the telescopic bottom rod (1). The center of the bottom surface of the rotating top block (4) is aligned with the top opening of the top card hole (10).
3. A positioning fixture for welding capacitor casings according to claim 1, characterized in that, The top of the rotating top block (4) is fixedly connected to the center of the bottom surface of the docking top plate (5), the clamping motor (6) is fixedly connected to the center of one end of the docking top plate (5), and the output end extends horizontally and is fixedly connected to one end of the clamping screw (15).
4. A positioning fixture for welding capacitor casings according to claim 1, characterized in that, The number of clamping top blocks (7) is two, and the two clamping top blocks (7) are arranged in parallel with each other. The bottom end of the clamping top block (7) is connected to the top opening end of the top horizontal groove (14). The steering motor (9) is fixedly installed on the inner side of the telescopic bottom rod (1) near the top end, and the output end of the steering motor (9) extends vertically upward to the inside of the top card hole (10). The extension end is fixedly connected to the bottom center position of the rotating card block (12).
5. A positioning fixture for welding capacitor casings according to claim 1, characterized in that, The bottom end of the rotating block (12) is engaged with the inner side of the top hole (10), the side of the mating strip (13) is engaged with the side of the positioning inner strip (11), the top end of the moving block (16) is fixedly connected to the center of the bottom surface of the clamping top block (7), and the bottom end is engaged with the inner side of the top horizontal groove (14).
6. A positioning fixture for welding capacitor casings according to claim 1, characterized in that, The threaded connection of the fitting screw hole (17) is provided on the outer side of the clamping screw (15). The fitting top groove (18) is vertically opened through the top center of the clamping top block (7). The two sides of the fitting top groove (18) extend through the two side walls of the clamping top block (7) to the outside in an open shape. The output end of the extrusion cylinder (20) is horizontally extended and fixedly connected to the center of the side of the extrusion inner plate (19).