A clamping device for circuit board production

Abstract

The utility model relates to circuit board production technical field, and disclose a kind of clamping device for circuit board production, including frame and rack basket, the inside of rack basket is provided with the clamping assembly of rectangular array distribution, the clamping assembly includes fixedly installed mounting seat in rack basket top end, the top end of mounting seat is fixedly connected with guide slide bar, the top end of guide slide bar is fixedly connected with anti-drop ring, the bottom of anti-drop ring is elastically contacted with spring, the end of spring away from anti-drop ring is elastically contacted with sliding sleeve, the bottom of sliding sleeve is fixedly connected with upper tight pad, the sidewall of mounting seat is fixedly connected with lower tight pad.This clamping device for circuit board production has the advantages of low-cost batch production, high-density loading capacity, double-side stable clamping and convenient and fast operation.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, specifically to a clamping device for circuit board manufacturing. Background Technology

[0002] Surface Mount Technology (SMT) is a circuit connection technology that mounts leadless or short-lead surface mount components onto the surface of a printed circuit board (PCB) or other substrate, and then completes the assembly through methods such as reflow soldering and dip soldering. After SMT assembly, the PCB surface is prone to residual impurities such as solder balls and flux residues, which need to be removed by cleaning equipment to ensure circuit performance.

[0003] In actual production, PCBs are typically placed at an angle in the rack of the cleaning equipment during cleaning. The rack uses metal forks with a fixed spacing in its grid. The PCB needs to rest against the forks and then be secured by cable ties through the through-holes in the PCB frame. However, the fixed spacing of the forks and the grid structure cannot accommodate the tilt angles of PCBs of different sizes. Small PCBs have fewer bottom support points, requiring forced adjustment of the PCB's posture or bending of the cable ties during binding, which increases binding time and easily damages the PCB edges due to uneven force. Especially for small PCBs, only the bottom can be bound for fixation. During the cleaning process, the impact of the high-pressure water flow can easily cause the bottom binding points to loosen, causing the PCB to shake in the rack and collide with the forks, resulting in problems such as solder pad detachment and circuit breakage, increasing the defect rate to 3%-5%. The traditional rack fixing structure has become a bottleneck restricting production efficiency and product quality. Therefore, there is an urgent need for a clamping device for PCB production to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a clamping device for circuit board production, which has the advantages of convenient clamping and solves the problem of cumbersome fixing operations in existing technologies.

[0006] (II) Technical Solution

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A clamping device for circuit board production includes a frame and a material rack basket. The material rack basket is provided with clamping components arranged in a rectangular array. The clamping components include a mounting base fixedly installed on the top of the material rack basket. A guide slide rod is fixedly connected to the top of the mounting base. An anti-detachment ring is fixedly connected to the top of the guide slide rod. A spring elastically abuts the bottom of the anti-detachment ring. A sliding sleeve elastically abuts the end of the spring away from the anti-detachment ring. An upper pressing pad is fixedly connected to the bottom of the sliding sleeve. A lower pressing pad is fixedly connected to the side wall of the mounting base.

[0008] The beneficial effects of this utility model are:

[0009] This clamping device for circuit board production has the advantages of low-cost mass production, high-density loading capacity, stable clamping on both sides, and convenient and fast operation.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, a guide baffle is fixedly connected to the bottom end of the upper abutment pad.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the guide baffle can guide the circuit board smoothly into the clamping gap between the upper and lower clamping pads, avoiding clamping misalignment caused by tilting or offset of the circuit board, and improving clamping accuracy.

[0013] Furthermore, the spring is sleeved on the outside of the guide slide rod, and there are two guide slide rods, symmetrically distributed at the top of the mounting base.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the two symmetrically distributed guide slides provide a stable sliding track for the slide sleeve, preventing the slide sleeve from radially shifting when the spring is compressed; the spring is sleeved outside the guide slides, ensuring the uniform transmission of elastic force and improving the lifting stability of the upper pressing pad.

[0015] Furthermore, the sliding sleeve is slidably connected to the outside of the guide slide rod, and a pull rod is fixedly connected to the top of the upper abutment pad.

[0016] The advantage of adopting the above-mentioned further solution is that the pull rod provides the operator with a convenient point of force application. By pulling the pull rod, the sliding sleeve can be quickly driven to compress the spring, so as to easily remove the circuit board.

[0017] Furthermore, a drainage groove is provided inside the lower abutment pad.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the drainage channel can guide the accumulated water to flow out quickly from the lower pressure pad during the circuit board cleaning process, thus preventing the water from accumulating in the pressure pad.

[0019] Furthermore, the material rack basket is fixedly connected to the inside of the frame, and a handle is fixedly connected to the top of the frame.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the handle provides operators with a convenient point of force application for handling, thereby improving the efficiency of transferring the equipment within the workshop.

[0021] Furthermore, the upper and lower clamping pads are respectively disposed on both sides of the guide slide rod, and the two sets of clamping components cooperate to clamp the circuit board.

[0022] The beneficial effect of adopting the above-mentioned further solution is that the double-sided clamping setting of the upper and lower clamping pads ensures that the circuit board is subjected to uniform clamping force. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the material rack basket in this utility model;

[0025] Figure 3 This is a schematic diagram of the mounting base in this utility model.

[0026] In the diagram: 1. Frame; 2. Material rack basket; 3. Mounting base; 4. Guide slide rod; 5. Anti-detachment ring; 6. Spring; 7. Sliding sleeve; 8. Upper clamping pad; 9. Lower clamping pad; 10. Guide baffle; 11. Pull rod; 12. Drainage groove; 13. Handle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the embodiments, by Figure 1-3 The present invention discloses a clamping device for circuit board production. The present invention includes a frame 1 and a material rack basket 2. The material rack basket 2 is provided with clamping components arranged in a rectangular array. The clamping components include a mounting base 3 fixedly installed at the top of the material rack basket 2. The mounting base 3 can be fixedly installed by welding or clamping. A guide slide rod 4 is fixedly connected to the top of the mounting base 3. An anti-detachment ring 5 is fixedly connected to the top of the guide slide rod 4. A spring 6 elastically abuts the bottom of the anti-detachment ring 5. A sliding sleeve 7 elastically abuts the end of the spring 6 away from the anti-detachment ring 5. An upper pressing pad 8 is fixedly connected to the bottom of the sliding sleeve 7. A lower pressing pad 9 is fixedly connected to the side wall of the mounting base 3.

[0029] The upper clamping pad 8 and the lower clamping pad 9 are respectively set on both sides of the guide slide rod 4. The two ends of the same circuit board are respectively clamped in the lower clamping pad 9 of one set of clamping components and the upper clamping pad 8 of another set of clamping components. The inner wall of the lower clamping pad 9 is provided with an anti-dislodgement block to prevent the circuit board from falling out when clamping circuit boards of various sizes.

[0030] In this embodiment, in actual use, a guide baffle 10 is fixedly connected to the bottom end of the upper clamping pad 8. The side of the guide baffle 10 that contacts the circuit board is polished or has a polytetrafluoroethylene film pasted on it to form a smooth surface. The guide baffle 10 can guide the circuit board to smoothly enter the clamping gap between the upper clamping pad 8 and the lower clamping pad 9, avoiding the need to align the circuit board with the slot of the upper clamping pad 8 when clamping it, and achieving the purpose of quick clamping.

[0031] Specifically, refer to Figure 3 Spring 6 is sleeved on the outside of guide slide rod 4. There are two guide slide rods 4, which are symmetrically distributed on the top of mounting base 3. Slide sleeve 7 is slidably connected to the outside of guide slide rod 4. Pull rod 11 is fixedly connected to the top of upper abutment pad 8. The top of pull rod 11 is provided with anti-slip texture.

[0032] In this embodiment, in actual use, the two symmetrically distributed guide rods 4 provide a stable sliding track for the sliding sleeve 7, preventing the sliding sleeve 7 from radially shifting when compressing the spring 6; the spring 6 is sleeved on the outside of the guide rods 4, ensuring the uniform transmission of elastic force and improving the lifting stability of the upper pressing pad 8; the pull rod 11 provides a convenient point of force application for the operator, and by pulling the pull rod 11, the sliding sleeve 7 can be quickly driven to compress the spring 6, so that the upper pressing pad 8 can release the pressing state against the circuit board, and the circuit board can be easily removed.

[0033] In this embodiment, in actual use, the lower support pad 9 has a drainage groove 12 inside. The drainage groove 12 can guide the accumulated water to flow out of the lower support pad 9 quickly during the circuit board cleaning process, so as to avoid the accumulation of water in the support pad 9.

[0034] In this embodiment, in actual use, the material rack basket 2 is fixedly connected to the inside of the frame 1, and the top of the frame 1 is fixedly connected to the handle 13. The PCB water-based cleaning machine is equipped with a slide rail, and the frame 1 is set on the slider of the slide rail. The handle 13 provides the operator with a convenient point of force application for handling, which improves the transfer efficiency of the device in the workshop.

[0035] This clamping device adopts a "same clamping module" design. The material rack basket 2 integrates multiple clamping components distributed in a rectangular array. Each component has the same structure and is processed in batches to form a standardized module. The modular design reduces the number of parts and assembly processes that are assembled separately, thereby reducing production costs. The rectangular array arrangement minimizes the spacing between clamping components, improving structural concentration and loading capacity.

[0036] Working principle:

[0037] The bottom end of the circuit board is clamped to the lower clamping pad 9, and the other end is clamped to the upper clamping pad 8 of the adjacent clamping assembly. The elastic potential energy of the compression spring 6 causes the upper clamping pad 8 to continuously press down until the circuit board is clamped and fixed. When it needs to be removed, pull the pull rod 11 at the top of the upper clamping pad 8, the sliding sleeve 7 compresses the spring 6, and the upper clamping pad 8 descends to release the clamping.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for circuit board production, comprising a frame (1) and a material rack basket (2), characterized in that: The material rack basket (2) is equipped with a rectangular array of clamping components inside; The clamping assembly includes a mounting base (3) fixedly installed on the top of the material rack basket (2). A guide slide rod (4) is fixedly connected to the top of the mounting base (3). An anti-detachment ring (5) is fixedly connected to the top of the guide slide rod (4). A spring (6) elastically abuts the bottom of the anti-detachment ring (5). A sliding sleeve (7) elastically abuts the end of the spring (6) away from the anti-detachment ring (5). An upper pressing pad (8) is fixedly connected to the bottom of the sliding sleeve (7). A lower pressing pad (9) is fixedly connected to the side wall of the mounting base (3).

2. The clamping device for circuit board manufacturing according to claim 1, characterized in that: The bottom end of the upper abutment pad (8) is fixedly connected to a guide baffle (10).

3. The clamping device for circuit board manufacturing according to claim 1, characterized in that: The spring (6) is sleeved on the outside of the guide slide (4). There are two guide slides (4), which are symmetrically distributed on the top of the mounting base (3).

4. The clamping device for circuit board production according to claim 1, characterized in that: The sliding sleeve (7) is slidably connected to the outside of the guide slide rod (4), and the top of the upper abutment pad (8) is fixedly connected to the pull rod (11).

5. The clamping device for circuit board production according to claim 1, characterized in that: The lower abutment pad (9) has a drainage groove (12) inside.

6. The clamping device for circuit board manufacturing according to claim 1, characterized in that: The material rack (2) is fixedly connected to the inside of the frame (1), and a handle (13) is fixedly connected to the top of the frame (1).

7. The clamping device for circuit board manufacturing according to claim 1, characterized in that: The upper clamping pad (8) and the lower clamping pad (9) are respectively disposed on both sides of the guide slide rod (4), and the two sets of clamping components cooperate to clamp the circuit board.

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