A clamping spraying device for a capacitor gold spraying machine

By using laser sensors and adjusting cylinders in conjunction with precise adjustments to the lifting blocks, the positioning accuracy and support stability issues of traditional capacitor gold spraying machines' clamping devices are solved. This achieves uniformity of the gold spraying layer thickness and improves the electrical performance of the capacitors, meeting the rapid changeover requirements of automated production.

CN224573936UActive Publication Date: 2026-07-31CANGZHOU JIEGAO ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CANGZHOU JIEGAO ELECTRIC CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Traditional capacitor gold spraying machines have problems with clamping positioning accuracy, poor adjustment mechanism flexibility, lack of real-time monitoring mechanism and insufficient support stability, resulting in uneven gold spraying layer thickness, inconsistent contact resistance, and local overheating, which affects the service life and stability of the capacitor.

Method used

A laser sensor is used to detect the core position in real time. Combined with the precise adjustment of the adjusting cylinder and the lifting block, the core is always kept in the center of the clamping unit. The wedge structure and multi-point support design provide stable lateral support force, enabling automatic positioning and adaptability to cores of various sizes.

Benefits of technology

It improves the uniformity of the gold plating layer thickness, enhances the electrical performance and reliability of capacitors, reduces product defect rates, and meets the rapid changeover requirements of automated production lines.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of gold spraying machine technology, and in particular to a clamping and spraying device for a capacitor gold spraying machine. It includes a spraying operating table and clamping units. Several clamping units are evenly arranged along the edge of the spraying operating table. Adjustable positioning components and clamping claws are spaced apart on the mounting base of each clamping unit. The positioning seat of the adjustable positioning component is centrally connected to the mounting base. The adjusting seat of the adjustable positioning component is connected to both sides of the mounting base via an adjusting cylinder. A lifting block is located in the center of the adjusting seat, and laser sensors are located on both sides of the positioning seat. This utility model, using the above-described structure, provides a clamping and spraying device for a capacitor gold spraying machine. The laser sensors on both sides of the positioning seat can detect the relative position of the core and the clamping claws in real time, ensuring precise centering of the core, improving the uniformity of the gold spraying layer thickness, and significantly enhancing the electrical performance and reliability of the capacitor.
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Description

Technical Field

[0001] This utility model relates to the field of gold spraying machine technology, and in particular to a clamping spraying device for a capacitor gold spraying machine. Background Technology

[0002] In the capacitor manufacturing industry, the gold spraying process is a crucial step that directly affects the electrical performance and reliability of the product. Traditional capacitor gold spraying machine clamping devices have revealed several shortcomings in practical applications: First, insufficient clamping and positioning accuracy makes it difficult to ensure the core is accurately centered, resulting in uneven gold layer thickness and easily causing problems such as inconsistent contact resistance and localized overheating, severely impacting the capacitor's lifespan and stability. Second, the adjustment mechanism lacks flexibility, requiring manual adjustment for cores of different sizes, which is time-consuming and labor-intensive, failing to meet the rapid changeover requirements of automated production lines. Third, the lack of a real-time monitoring mechanism means that the core's position cannot be dynamically fed back during clamping; any deviation is difficult to correct immediately, leading to batch defects. Furthermore, traditional clamping structures provide insufficient support and stability for the core, making it prone to displacement during spraying due to vibration or external forces, further reducing the quality of the gold spraying. Utility Model Content

[0003] The purpose of this invention is to provide a clamping and spraying device for a capacitor gold spraying machine. By using a laser sensor to detect the core position in real time, and with the precise adjustment of the adjusting cylinder and the lifting block, the core is always kept in the center position of the clamping unit, which significantly improves the uniformity of the gold spraying layer thickness.

[0004] To achieve the above objectives, this utility model provides a clamping and spraying device for a capacitor gold spraying machine, including a spraying operating table and a clamping unit. Several clamping units are evenly arranged on the edge of the spraying operating table. An adjusting positioning component and clamping claws are spaced apart on the mounting base of the clamping unit. The positioning base of the adjusting positioning component is connected to the center of the mounting base. The adjusting base of the adjusting positioning component is connected to both sides of the mounting base through an adjusting cylinder. A lifting block is provided in the center of the adjusting base. Laser sensors are provided on both sides of the positioning base.

[0005] Preferably, both the adjusting seat and the mounting seat have a fixing block in the center, and both sides of the fixing block have inwardly inclined fixing ramps, with a groove between the fixing block and the fixing ramps.

[0006] Preferably, a lifting block is provided in the groove. The lifting block is rectangular and its bottom is connected to a telescopic cylinder, which is connected to the bottom of the groove.

[0007] Preferably, the bottoms of the first and second jaws of the clamping claw are hinged to the two ends of the clamping cylinder, respectively, and the middle parts of the first and second jaws are hinged to the mounting base and the adjusting positioning frame, respectively.

[0008] Preferably, the first adjustment part of the adjustment seat is located inside the second adjustment part. The side wall of the first adjustment part is symmetrically provided with a plurality of first adjustment holes, and the side wall of the second adjustment part is provided with second adjustment holes. The first adjustment holes and the second adjustment holes are connected by a connecting rod.

[0009] Preferably, the first positioning adjustment part of the positioning seat is located inside the second positioning adjustment part. The side wall of the first positioning adjustment part is symmetrically provided with a plurality of first positioning adjustment holes, and the side wall of the second positioning adjustment part is provided with second positioning adjustment holes. The first positioning adjustment holes and the second positioning adjustment holes are connected by a connecting rod.

[0010] Preferably, the adjusting cylinder passes through the adjusting hole of the adjusting positioning frame and is connected to the adjusting seat.

[0011] Preferably, the number of grooves is one on one side of the fixing block.

[0012] Therefore, the clamping and spraying device for a capacitor gold spraying machine with the above-mentioned structure has the following advantages:

[0013] 1. By using a laser sensor to detect the core position in real time, and with the precise adjustment of the adjusting cylinder and lifting block, the core is always kept in the center of the clamping unit, which significantly improves the uniformity of the gold coating thickness, effectively improves the electrical performance and reliability of the capacitor, and reduces the product defect rate caused by uneven gold coating.

[0014] 2. The adjusting cylinder and the lifting block work together to automatically adapt to cores of various sizes. The wedge structure of the fixed inclined platform and the multi-point support design provide stable lateral support and automatic positioning effect for the core.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a clamping and spraying device for a capacitor gold spraying machine according to the present invention;

[0017] Figure 2 This is a schematic diagram of the clamping unit in a clamping spraying device for a capacitor gold spraying machine according to the present invention;

[0018] Figure 3 yes Figure 2 Enlarged view of point A in the image.

[0019] Figure label:

[0020] 1. Spraying worktable; 2. Mounting base; 3. Positioning base; 4. Adjusting base; 5. Adjusting cylinder; 6. Lifting block; 7. Laser sensor; 8. Fixing block; 9. Groove; 10. Fixing ramp; 11. First gripper; 12. Second gripper; 13. Clamping cylinder; 14. First adjusting part; 15. Second adjusting part; 16. First positioning adjusting part; 17. Second positioning adjusting part; 18. Connecting rod; 19. Adjusting positioning frame. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. Unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The features mentioned above or in the specific examples mentioned in this invention can be combined arbitrarily, and these specific embodiments are only used to illustrate this invention and are not intended to limit the scope of this invention.

[0022] Example

[0023] like Figures 1-3 As shown, this utility model provides a clamping and spraying device for a capacitor gold spraying machine, including a spraying operating table 1 and clamping units. Several clamping units are evenly arranged along the edge of the spraying operating table 1. Adjustable positioning components and clamping claws are spaced apart on the mounting base 2 of each clamping unit. The positioning seat 3 of the adjustable positioning component is connected to the center of the mounting base 2, and the adjusting seat 4 of the adjustable positioning component is connected to both sides of the mounting base 2 via an adjusting cylinder 5. A lifting block 6 is provided in the center of the adjusting seat 4, and laser sensors 7 are provided on both sides of the positioning seat 3.

[0024] Multiple clamping units are evenly distributed along the edge of the spraying worktable 1. Driven by its central rotating shaft, the spraying worktable 1 can process multiple cores simultaneously. The adjusting positioning assembly, through the coordinated action of the adjusting cylinder 5 and the lifting block 6, can automatically adjust the clamping position according to the core size, accommodating cores of various specifications and greatly improving production efficiency. Laser sensors 7 are installed on both sides of the positioning seat 3. These sensors measure the distance difference between the two ends of the core and the clamping claws, determining in real time whether the core is centered. If not centered, the clamping claws are released, the lifting block 6 lifts the core, and then the adjusting seat 4 adjusts the core position to ensure precise centering. This improves the uniformity of the gold coating thickness, significantly enhancing the electrical performance and reliability of the capacitor.

[0025] Both the adjusting seat 4 and the mounting seat 2 have a fixing block 8 in the center. On both sides of the fixing block 8 are inwardly inclined fixing ramps 10, and a groove 9 is provided between the fixing block 8 and the fixing ramps 10. The inclination angle of the fixing ramps 10 forms a wedge-shaped structure, providing lateral support to the core when it is placed on the positioning seat 3 and the adjusting seat 4. When the core's initial position shifts, the fixing ramps 10 guide the core to automatically slide towards the center position. Simultaneously, parts of the core can contact the fixing block 8, further providing support.

[0026] A lifting block 6, rectangular in shape, is provided within the groove 9. The bottom of the lifting block 6 is connected to a telescopic cylinder, which in turn is connected to the bottom of the groove 9. The groove 9 accommodates the lifting block 6. When the core position does not need adjustment, the telescopic cylinder retracts the lifting block 6 into the groove 9, with the top of the lifting block 6 lower than the top of the fixed block 8. The lifting block 6 achieves vertical lifting and lowering via the telescopic cylinder and can also be used in conjunction with height data detected by the laser sensor 7 to compensate for core height tolerances.

[0027] The bottoms of the first jaw 11 and the second jaw 12 of the clamping jaws are hinged to both ends of the clamping cylinder 13, respectively, and the middle parts of the first jaw 11 and the second jaw 12 are hinged to the mounting base 2 and the adjusting positioning frame 19, respectively. A parallelogram linkage mechanism is adopted, and the clamping cylinder 13 drives the first jaw 11 and the second jaw 12 to rotate around the hinge point to achieve synchronous opening and closing action.

[0028] The first adjustment part 14 of the adjusting seat 4 is located inside the second adjustment part 15. The first adjustment part 14 has several first adjustment holes symmetrically arranged on its side wall. The second adjustment part 15 has second adjustment holes on its side wall, and the first and second adjustment holes are connected by a connecting rod 18. The height of the adjusting seat 4 can be adjusted by connecting the second adjustment holes to the first adjustment holes of different heights.

[0029] The first positioning adjustment part 16 of the positioning seat 3 is located inside the second positioning adjustment part 17. The first positioning adjustment part 16 has several first positioning adjustment holes symmetrically arranged on its side wall. The second positioning adjustment part 17 has second positioning adjustment holes on its side wall, and the first and second positioning adjustment holes are connected by a connecting rod 18. The height of the positioning seat 3 can be adjusted by connecting the second positioning adjustment holes to the first positioning adjustment holes of different heights.

[0030] The adjusting cylinder 5 passes through the adjusting hole of the adjusting positioning frame and is connected to the adjusting seat 4, providing space for the extension rod of the adjusting cylinder 5 to move.

[0031] The number of grooves 9 is one on one side of the fixing block 8, providing multiple points of support for the core.

[0032] During operation, the capacitor core to be processed is placed by the conveying device onto the clamping unit at the edge of the spraying workbench 1, with the core positioned between the adjusting seat 4 and the positioning seat 3. Because the inwardly inclined fixing ramps 10 on both sides of the fixing block 8 form a wedge-shaped structure, even if there is an initial positional offset, the core will automatically slide towards the center position under the guidance of the fixing ramps 10. Simultaneously, a portion of the core's shape contacts the fixing block 8, providing lateral support and initial positioning.

[0033] The laser sensors 7 on both sides of the positioning base 3 start working, measuring the distance difference between the core and the clamping claws to determine whether the core is centered. If the core is not centered, the clamping cylinder 13 drives the clamping claws to release the core. At this time, the telescopic cylinder at the bottom of the lifting block 6 is activated, pushing the lifting block 6 out of the groove 9, so that the core is no longer in contact with the fixing block 8 and the fixing ramp 10. Subsequently, the adjusting cylinder 5 pushes the adjusting base 4 to move, causing the core to adjust its position until the laser sensor 7 detects that the core is in a centered state.

[0034] After the core position is adjusted, the telescopic cylinder retracts the lifting block 6 into the groove 9 to avoid affecting the clamping action. Next, the clamping cylinder 13 drives the first gripper 11 and the second gripper 12 to rotate around the hinge point, firmly clamping the core for subsequent spraying. The spraying operating table 1 begins to rotate under the drive of the central rotating shaft, with multiple clamping units moving simultaneously, and the cores at each station rotating with the operating table. The gold spraying mechanism (using a fixed-position gold spraying mechanism as in existing technology) performs gold spraying on the rotating core. Because the core has been precisely centered and firmly clamped, it ensures a uniform and consistent gold layer thickness.

[0035] After the gold plating is completed, the clamping cylinder 13 drives the clamping jaws to open, releasing the core and removing it. All components of the clamping unit reset, the lifting block 6 remains in the retracted state, and the adjusting seat 4 returns to its initial position, waiting for the next core to be loaded, thus entering the next work cycle.

[0036] Therefore, the present invention provides a clamping and spraying device for a capacitor gold spraying machine with the above-mentioned structure. By using a laser sensor to detect the core position in real time, and cooperating with the precise adjustment of the adjusting cylinder and the lifting block, the core is always kept in the center position of the clamping unit, which significantly improves the uniformity of the gold spraying layer thickness.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A clamping and spraying device for a capacitor gilding machine, characterized by: It includes a spraying worktable and a clamping unit. Several clamping units are evenly arranged on the edge of the spraying worktable. The mounting base of the clamping unit is provided with an adjustment positioning component and a clamping claw at intervals. The positioning seat of the adjustment positioning component is connected to the center of the mounting base. The adjustment seat of the adjustment positioning component is connected to both sides of the mounting base through an adjustment cylinder. A lifting block is provided in the center of the adjustment seat. Laser sensors are provided on both sides of the positioning seat.

2. The clamping and spraying device for a capacitor gilding machine according to claim 1, wherein: Both the adjusting seat and the mounting seat have a fixing block in the center, and both sides of the fixing block have inwardly inclined fixing ramps. There is a groove between the fixing block and the fixing ramps.

3. The clamping and spraying device for a capacitor gilding machine according to claim 2, characterized in that: A lifting block is provided in the groove. The lifting block is rectangular and its bottom is connected to a telescopic cylinder, which is connected to the bottom of the groove.

4. The clamping and spraying device for a capacitor gilding machine according to claim 1, wherein: The bottoms of the first and second jaws of the clamping jaws are hinged to the two ends of the clamping cylinder, respectively, and the middle parts of the first and second jaws are hinged to the mounting base and the adjusting positioning frame, respectively.

5. The clamping and spraying device for a capacitor gilding machine according to claim 1, wherein: The first adjustment part of the adjustment seat is located inside the second adjustment part. The side wall of the first adjustment part is symmetrically provided with a number of first adjustment holes, and the side wall of the second adjustment part is provided with second adjustment holes. The first adjustment holes and the second adjustment holes are connected by a connecting rod.

6. The clamping and spraying device for a capacitor gilding machine according to claim 1, wherein: The first positioning adjustment part of the positioning seat is located inside the second positioning adjustment part. The side wall of the first positioning adjustment part is symmetrically provided with a number of first positioning adjustment holes, and the side wall of the second positioning adjustment part is provided with second positioning adjustment holes. The first positioning adjustment holes and the second positioning adjustment holes are connected by a connecting rod.

7. The clamping and spraying device for a capacitor gilding machine according to claim 4, wherein: The adjusting cylinder passes through the adjusting hole of the adjusting positioning frame and connects to the adjusting seat.

8. The clamping and spraying device for a capacitor gilding machine according to claim 3, wherein: The number of grooves is one on one side of the fixing block.