Anti-deformation clamp for processing circuit board

CN224765188UActive Publication Date: 2026-09-18SICHUAN LONGYU TIANLING ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202521876497.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-02
Publication Date
2026-09-18
Estimated Expiration
2035-09-02

AI Technical Summary

Technical Problem

[0003]一般的电路板加工防变形夹具仅能适配特定尺寸、厚度或版型的电路板,当加工不同规格的电路板时,需要频繁更换夹具,不仅增加了设备成本,还延长了生产准备时间,降低了加工效率,而且夹持力度难以精准控制,部分夹具采用刚性夹持结构,容易因夹持过紧导致电路板边缘损伤或内部线路受压损坏,而夹持过松又无法起到有效的防变形作用此外,此外对于带有凹槽的电路板,普通夹具的夹持面多为平面或固定形状,无法与凹槽部位形成精准贴合,容易出现夹持错位、受力不均的情况,既难以保证夹持的稳固性,又可能因局部受力过大对凹槽周边的线路或元件造成损伤,严重影响加工质量,因此,本技术领域人员提供一种电路板加工用防变形夹具以解决上述背景技术中所提出的问题

Benefits of technology

[0012] 1. This anti-deformation fixture for circuit board processing can firmly hold the circuit board by setting up clamping components, making the circuit board less prone to displacement and deformation during processing, with better uniform force distribution, reducing processing errors caused by deformation, and ensuring the accuracy of processing the board surface and holes.

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Abstract

The utility model relates to circuit board processing is with anti -deformation anchor clamps technical field discloses a kind of anti -deformation anchor clamps for circuit board processing, including support platform, the upper end of support platform is equipped with the clamping assembly for clamping circuit board to prevent circuit board deformation, the lower end of support platform is equipped with the adjusting assembly for adjusting the height of support platform and clamping assembly, the utility model can be firmly clamped to circuit board by setting clamping assembly, so that circuit board is not prone to displacement and deformation in processing process, stress uniformity is better, processing error can be reduced, the accuracy of guaranteeing board surface and hole position processing is protected, while setting adjusting assembly, adjusting assembly adjusts support height, i.
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Description

Technical Field

[0001] This utility model relates to the technical field of anti-deformation fixtures for circuit board processing, specifically, to an anti-deformation fixture for circuit board processing. Background Technology

[0002] Circuit board processing anti-deformation fixtures are specialized tooling equipment used to fix and limit circuit boards during the circuit board production process. Through a reasonable clamping structure, the circuit board is firmly fixed, avoiding deformation problems such as bending, warping, and cracking caused by external forces, processing stress, or temperature changes. This ensures the accuracy and stability of circuit board processing and the reliability of subsequent assembly. It is an indispensable auxiliary tool in the large-scale and high-precision production of circuit boards.

[0003] Conventional anti-deformation fixtures for circuit board processing can only accommodate circuit boards of specific sizes, thicknesses, or shapes. When processing circuit boards of different specifications, frequent fixture changes are required, which not only increases equipment costs but also extends production preparation time and reduces processing efficiency. Moreover, the clamping force is difficult to control precisely. Some fixtures use rigid clamping structures, which can easily cause damage to the edges of the circuit board or damage to the internal circuitry due to excessive clamping. On the other hand, clamping too loosely cannot effectively prevent deformation. In addition, for circuit boards with grooves, the clamping surfaces of ordinary fixtures are mostly flat or fixed in shape, which cannot form a precise fit with the groove. This can easily lead to clamping misalignment and uneven force, making it difficult to ensure clamping stability and potentially causing damage to the circuitry or components around the groove due to excessive local force, seriously affecting the processing quality. Therefore, those skilled in the art provide an anti-deformation fixture for circuit board processing to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-deformation fixture for circuit board processing, thereby solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a circuit board processing anti-deformation fixture, including a support platform, the upper end of the support platform is provided with a clamping component for clamping the circuit board to prevent deformation of the circuit board, and the lower end of the support platform is provided with an adjusting component for adjusting the height of the support platform and the clamping component.

[0006] As a preferred embodiment of the above technical solution, the adjustment component includes a support plate, with a support leg fixedly connected to the upper end of the support plate. A plurality of threaded holes arranged in a linear array are provided on one side of the support leg. A sleeve is movably fitted on the outer side of the upper end of the support leg and is fixedly connected to the lower end of the support platform. A rotating stud is threaded onto one side of the sleeve. Storage boxes for storing circuit boards are provided at both ends of the support platform, and reinforcing columns for reinforcing the support platform are provided at the other two ends of the support platform.

[0007] As a preferred embodiment of the above technical solution, the clamping assembly includes two bases and a blocking block. The two bases are fixedly connected to the upper center of the support platform near both sides. The blocking block is fixedly connected to the upper center of the support platform. A motor is fixedly connected to the upper end of each of the two bases. A lead screw is rotatably connected to the output end of each of the two motors. The threads of the two lead screws are in opposite directions.

[0008] As a preferred embodiment of the above technical solution, the two lead screws are respectively rotatably sleeved at the two ends of the center inside the barrier block, and positioning columns are fixedly connected to the two opposite sides of the barrier block, with the two positioning columns fixedly connected to the middle area of ​​the support platform.

[0009] As a preferred embodiment of the above technical solution, both lead screws are threaded with sliders on their outer sides, the two sliders are slidably sleeved between the two positioning posts, the upper ends of both sliders are fixedly connected with protective covers, the inner sides of the two protective covers that are far apart from each other are fixedly connected with main connecting plates, and the sides of the two main connecting plates that are close to each other are fixedly connected with several springs.

[0010] As a preferred embodiment of the above technical solution, a secondary connecting plate is fixedly connected to the center of one side of the two main connecting plates that are close to each other, and a number of clamping blocks are arranged and fixedly connected to the center of one side of the two protective covers that are close to each other. The ends of the clamping blocks on one side and the clamping blocks on the other side that are far apart from each other are respectively fixedly connected to the ends of the springs on both sides that are close to each other.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This anti-deformation fixture for circuit board processing can firmly hold the circuit board by setting up clamping components, making the circuit board less prone to displacement and deformation during processing, with better uniform force distribution, reducing processing errors caused by deformation, and ensuring the accuracy of processing the board surface and holes.

[0013] 2. When the clamping component clamps the circuit board, the adjusting component can simultaneously adjust the support height, so that the circuit board is in a suitable operating plane. By optimizing the processing operating angle through height adaptation, it is easier for operators to perform fine work, while promoting precise contact between the processing tool and the board surface, thereby significantly improving processing efficiency and quality, and making the overall processing effect of the circuit board better. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an anti-deformation fixture for circuit board processing;

[0015] Figure 2 This is a schematic diagram of the adjustment component structure of an anti-deformation fixture for circuit board processing;

[0016] Figure 3 This is a schematic diagram of the slider connection of a clamping component in an anti-deformation fixture for circuit board processing;

[0017] Figure 4 A schematic diagram showing the connection of the protective cover of the clamping assembly of an anti-deformation fixture for circuit board processing;

[0018] Figure 5 This is a partial structural diagram of the clamping assembly of an anti-deformation fixture for circuit board processing.

[0019] In the diagram: 1. Support platform; 2. Adjustment assembly; 201. Support plate; 202. Support leg; 203. Sleeve; 204. Rotating stud; 3. Clamping assembly; 301. Base; 302. Motor; 303. Lead screw; 304. Barrier block; 305. Positioning post; 306. Slider; 307. Protective cover; 308. Main connecting plate; 309. Spring; 3010. Secondary connecting plate; 3011. Clamping block; 4. Storage box; 5. Reinforcing post. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] Please see Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a circuit board processing anti-deformation fixture, including a support platform 1, a clamping component 3 for clamping the circuit board to prevent deformation at the upper end of the support platform 1, and an adjusting component 2 for adjusting the height of the support platform 1 and the clamping component 3 at the lower end of the support platform 1.

[0022] As one implementation method in this embodiment, please refer to Figure 2 As shown, the adjustment component 2 includes a support plate 201. The upper end of the support plate 201 is fixedly connected to a support leg 202. A number of threaded holes arranged in a linear array are opened on one side of the support leg 202. A sleeve 203 is movably sleeved on the outer side of the upper end of the support leg 202. The sleeve 203 is fixedly connected to the lower end of the support platform 1. A rotating stud 204 is threaded onto one side of the sleeve 203. Storage boxes 4 for storing circuit boards are provided at both ends of the support platform 1. Reinforcing columns 5 for reinforcing the support platform 1 are provided at the other two ends of the support platform 1.

[0023] The support plate 201 provides a stable bottom support for the entire fixture, preventing overall wobbling during processing. The movable sleeve structure of the support leg 202 and the sleeve 203, along with several linearly arrayed threaded holes on one side of the support leg 202, allows for height adjustment by simply loosening the rotating stud 204, moving the sleeve 203 up and down to the appropriate position, and then tightening the rotating stud 204 into the corresponding threaded hole. This structure enables flexible adjustment of the height of the support table 1 and the clamping assembly 3, adapting to different processing scenarios, reducing operational fatigue and errors caused by unsuitable height, and significantly improving operational convenience and flexibility during processing.

[0024] Two storage boxes 4 can be used to store circuit boards that are to be processed and those that have been processed in a categorized manner, making the temporary storage of circuit boards more organized and reducing the problem of surface scratches or component damage caused by random stacking. This improves the convenience of material management. The reinforcing column 5 can enhance the overall load-bearing capacity and deformation resistance of the support platform 1, so that the support platform can remain stable when the clamping component 3 applies force or vibration occurs during processing. This can reduce processing errors caused by unstable support and ensure the overall reliability of the fixture.

[0025] As one implementation method in this embodiment, please refer to Figure 3 As shown, the clamping assembly 3 includes two bases 301 and a blocking block 304. The two bases 301 are fixedly connected to the upper center of the support platform 1 on both sides. The blocking block 304 is fixedly connected to the upper center of the support platform 1. A motor 302 is fixedly connected to the upper end of each of the two bases 301. The output ends of the two motors 302 are rotatably connected to lead screws 303. The threads of the two lead screws 303 are opposite.

[0026] As one implementation method in this embodiment, please refer to Figure 3 As shown, the two lead screws 303 are rotatably sleeved at their close ends inside the center of the blocking block 304 at both ends. The two opposing sides of the blocking block 304 are fixedly connected to positioning posts 305, and the two positioning posts 305 are fixedly connected to the middle area of ​​the support platform 1.

[0027] The barrier block 304 is fixed at the center of the upper end of the support platform 1, which can separate and limit the structure on both sides, and prevent the components on both sides from interfering with each other during movement. The motor 302 provides power for the rotation of the lead screw 303. The two lead screws 303 with opposite thread directions can achieve synchronous reverse rotation under the drive of the motor 302, so that the clamping components connected later can move towards or away from each other at the same time, thereby quickly and accurately adapting to circuit boards of different sizes and achieving efficient clamping or releasing of circuit boards.

[0028] As one implementation method in this embodiment, please refer to Figure 4As shown, two lead screws 303 are threaded with sliders 306 on their outer sides. The two sliders 306 are slidably sleeved between two positioning posts 305. Protective covers 307 are fixedly connected to the upper ends of the two sliders 306. Main connecting plates 308 are fixedly connected to the sides of the two protective covers 307 that are far apart from each other. Several springs 309 are fixedly connected to the sides of the two main connecting plates 308 that are close to each other.

[0029] The slider 306 slides smoothly along the two positioning posts 305 under the drive of the lead screw 303, ensuring the accuracy and stability of the movement process. The protective cover 307 fixed at the upper end of the slider 306 can protect the internal main connecting plate 308 and other components, preventing damage from debris and impurities generated during processing. Several springs 309 can provide elastic buffer when clamping the circuit board. When the clamping blocks 3011 on both sides approach each other to clamp the circuit board, the springs 309 will extend and retract appropriately according to the thickness and hardness of the circuit board, dispersing the clamping force and avoiding hard contact that could cause indentations, breakage, or other hard damage to the circuit board. Through this structural cooperation, the circuit board is firmly clamped, suppressing the risk of deformation during processing.

[0030] As one implementation method in this embodiment, please refer to Figure 5 As shown, two main connecting plates 308 are fixedly connected to each other at their center on one side near both ends. Inside the two protective covers 307, several clamping blocks 3011 are fixedly connected to each other at their center on one side near both ends. The ends of several clamping blocks 3011 on one side and several clamping blocks 3011 on the other side that are far apart from each other are fixedly connected to the ends of several springs 309 on both sides that are close to each other.

[0031] The secondary connecting plate 3010 enhances the structural strength of the main connecting plate 308, preventing the main connecting plate 308 from deforming under the force of the spring 309, thus ensuring the stability of the clamping structure. The elastic force of the spring 309 can be evenly transmitted to the clamping block 3011. When the clamping block 3011 contacts the circuit board, multiple clamping blocks 3011 can increase the contact points with the circuit board, making the clamping force distribution more uniform. This not only firmly fixes the circuit board and prevents it from shifting during processing, but also, with the buffering effect of the spring 309, avoids excessive clamping force from damaging the circuit board, further optimizing the stress state of the circuit board.

[0032] Working principle: When height adjustment is required, simply loosen the rotating stud 204, move the sleeve 203 up and down to the appropriate position, and then tighten the rotating stud 204 into the corresponding threaded hole. After the height adjustment component 2 completes the height adjustment, start the motor 302. The motor 302 will drive the lead screw 303 to rotate. The slider 306 will slide smoothly along the two positioning posts 305 under the drive of the lead screw 303, ensuring the accuracy and stability of the movement process. The slider 306 will drive the protective cover 307 to move. The clamping block 3011 and the spring 309 are inside the protective cover 307 and will also move with the protective cover 307. When multiple clamping blocks 3011 contact the circuit board, the spring 309 will extend and retract appropriately according to the thickness and hardness of the circuit board, thereby driving multiple clamping blocks 3011 to extend and retract. The extension and retraction of multiple clamping blocks 3011 achieves clamping of the circuit board, preventing damage and deformation of the circuit board.

[0033] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A deformation preventing jig for processing a circuit board, comprising a support table (1), characterized in that: The upper end of the support platform (1) is provided with a clamping component (3) for clamping the circuit board to prevent the circuit board from deforming. The lower end of the support platform (1) is provided with an adjusting component (2) for adjusting the height of the support platform (1) and the clamping component (3). The adjusting component (2) includes a support plate (201). The upper end of the support plate (201) is fixedly connected with a support leg (202). A plurality of threaded holes are opened on one side of the support leg (202) in a linear array. A sleeve (203) is movably sleeved on the outer side of the upper end of the support leg (202). The sleeve (203) is fixedly connected to the lower end of the support platform (1). A rotating stud (204) is threaded on one side of the sleeve (203). The support platform (1) is provided with storage boxes (4) for storing circuit boards at both ends, and the support platform (1) is provided with reinforcing columns (5) for reinforcing the support platform (1) at the other two ends; the clamping assembly (3) includes two bases (301) and a blocking block (304). The two bases (301) are fixedly connected to the upper center of the support platform (1) on both sides. The blocking block (304) is fixedly connected to the upper center of the support platform (1). The upper ends of the two bases (301) are fixedly connected with motors (302). The output ends of the two motors (302) are rotatably connected with lead screws (303). The two lead screws (303) have opposite thread directions.

2. The anti-deformation jig for processing a circuit board according to claim 1, characterized in that: The two lead screws (303) are rotated and sleeved at their close ends on the center of the barrier block (304) at both ends. The two opposing sides of the barrier block (304) are fixedly connected to positioning posts (305), and the two positioning posts (305) are fixedly connected to the middle area of ​​the support platform (1).

3. The anti-deformation fixture for circuit board processing according to claim 2, characterized in that: Both lead screws (303) are threaded with sliders (306) on their outer sides. The two sliders (306) are slidably sleeved between two positioning posts (305). The upper ends of the two sliders (306) are fixedly connected with protective covers (307). The sides of the two protective covers (307) that are far apart from each other are fixedly connected with main connecting plates (308). The sides of the two main connecting plates (308) that are close to each other are fixedly connected with several springs (309).

4. The anti-deformation jig for processing a circuit board according to claim 3, characterized in that: A secondary connecting plate (3010) is fixedly connected to the center of one side of the two main connecting plates (308) that are close to each other. Several clamping blocks (3011) are arranged and fixedly connected to the center of one side of the two protective covers (307) that are close to each other. The ends of several clamping blocks (3011) on one side and several clamping blocks (3011) on the other side that are far apart from each other are respectively fixedly connected to the ends of several springs (309) on both sides that are close to each other.