A kind of circuit mainboard welding fixture

Abstract

The utility model relates to circuit mainboard welding field, concretely relates to a kind of fixture for circuit mainboard welding, including fixture table, the main body for circuit mainboard welding clamping, fixed bolt, all threaded penetration in the bottom of fixture table, for front end threaded connection has magnetic attraction plate, and the both sides of the outside of fixture table are provided with side sliding slot, the inside sliding connection of side sliding slot has side sliding block.The utility model is provided with fixture table, magnetic attraction plate, side sliding block, lifting plate, micro air cylinder, spring rod, telescopic cylinder, bottom plate clamp and side clamping piece, when using the fixture for circuit mainboard welding, the position of bottom plate clamp can be adjusted by micro air cylinder to push side sliding block to slide on the side of fixture table, so that the circuit mainboard of different size and position is clamped, then after circuit mainboard is fixed, the position of side clamping piece can be moved by second magnetic attraction block, so that the side of circuit mainboard is auxiliary fixed.

Description

Technical Field

[0001] This utility model relates to the field of circuit board soldering, specifically to a fixture for soldering circuit boards. Background Technology

[0002] Circuit board soldering refers to the process of forming permanent electrical and mechanical connections between the pins or terminals of electronic components and conductive pads on a printed circuit board using molten metal, usually tin-based solder. This process is a core part of electronic product manufacturing and directly affects the reliability of the product. Circuit board soldering fixtures are special tooling equipment used to fix PCB substrates and electronic components, ensure positional accuracy during the soldering process, prevent thermal deformation, and improve soldering efficiency. Their design must take into account both mechanical stability and process adaptability.

[0003] Existing circuit board soldering fixtures lack the ability to adaptively clamp and composite position, resulting in poor versatility. They only support specific sizes, requiring multiple sets of fixtures. Manual adjustment is time-consuming, affecting subsequent circuit board soldering time. Long-term use of a single mechanical positioning fixture also results in un-buffered vibrations during soldering, affecting the positioning of the circuit board and thus impacting soldering quality.

[0004] Therefore, it is necessary to invent a fixture for soldering circuit boards to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a motherboard soldering fixture that, through a fixture platform, magnetic plate, side slider, lifting plate, miniature cylinder, spring rod, telescopic cylinder, base plate clamp, and side clamping plates, enables the motherboard soldering fixture to achieve adaptive clamping and composite positioning capabilities. This design, using a miniature cylinder to drive the side slider for automatic size adjustment, avoids manual adjustment errors and improves the compatibility of the motherboard soldering fixture. Furthermore, the magnetic force provides initial positioning, and the magnetic module supports hot-swappable replacement, saving changeover time. Over long-term use, this also ensures the soldering quality of the motherboard soldering fixture, reduces mechanical impact, and extends its service life. This addresses the problems of existing motherboard soldering fixtures lacking adaptive clamping and composite positioning capabilities, resulting in poor versatility, support for only specific sizes, the need for multiple fixtures, and time-consuming manual adjustments that affect subsequent motherboard soldering time. Additionally, long-term use of a single mechanical positioning fixture without buffering of vibrations during soldering can also affect the positioning of the motherboard, thus impacting soldering quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fixture for soldering circuit motherboards, including a fixture platform and a main body for holding the circuit motherboard during soldering; The fixing bolts are all threaded through the bottom of the fixture table and are used to connect the front end to the magnetic suction plate. The fixture table has side sliding grooves on both sides of the outside. A side slider is slidably connected inside the side sliding groove. A lifting plate is fixedly installed outside the side slider. A miniature cylinder is fixedly installed on one side of the inside of the side sliding groove, and a spring rod is fixedly installed on the other side of the inside of the side sliding groove. A telescopic cylinder is fixedly installed above the lifting plate for spacing adjustment. A base plate clamp is fixedly installed at the front end of the telescopic cylinder. A circuit board body is placed above the base plate clamp. A second magnetic block is magnetically connected above the magnetic plate. An adjusting rod is fixedly installed above the second magnetic block. An adjusting screw is threaded through the upper part of the adjusting rod. A side clamp is connected to the external thread of the adjusting screw.

[0007] Preferably, the lifting plate is slidably connected to the clamping table, and the front end of the micro cylinder and the front end of the spring rod are both fixedly connected to the outside of the side slider.

[0008] Preferably, a fixing screw is threaded through the upper part of the base plate clamp, and an upper plate clamp is connected to the external thread of the fixing screw. An internal soft pad is fixedly installed in both the upper plate clamp and the base plate clamp.

[0009] Preferably, a first magnetic block is magnetically connected above the magnetic plate, and a support platform is fixedly installed above the first magnetic block. The surface of the support platform is provided with negative suction ports.

[0010] Preferably, the number of negative suction ports is set to multiple, and the multiple negative suction ports are distributed in a ring array on the support platform.

[0011] Preferably, the side clip is threadedly connected to the adjusting rod, and the side clip is symmetrically arranged with respect to the central axis of the main circuit board.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This utility model includes a clamping platform, a magnetic plate, a side slider, a lifting plate, a miniature cylinder, a spring rod, a telescopic cylinder, a base plate clamp, and side clamping pieces. When using this circuit board soldering clamp, the side slider can be pushed by the miniature cylinder to slide on the side of the clamping platform to adjust the position of the base plate clamp, thereby satisfying the clamping of circuit boards of different sizes and positions. After the circuit board is fixed, the position of the side clamping pieces can be moved by the second magnetic block to assist in fixing the side of the circuit board. Moreover, when soldering the circuit board, the spring rod pressed by the side slider can also buffer the vibration transmitted from the circuit board to the lifting plate. This design gives the circuit board soldering clamp the ability to self-adapt to size and perform composite positioning. This design achieves automatic size adjustment by driving the side slider with the miniature cylinder, avoiding manual adjustment errors and improving the compatibility of the circuit board soldering clamp. In addition, the magnetic force provides initial positioning, and the magnetic module supports hot-swappable replacement, saving changeover time. This also ensures the soldering quality of the circuit board soldering clamp under long-term use, reduces mechanical impact, and extends service life. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the side slider structure of this utility model; Figure 3 This is a schematic diagram of the upper plate clamp structure of this utility model; Figure 4 This is a schematic diagram of the support platform structure of this utility model; Figure 5 This is a schematic diagram of the side clip structure of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Fixture table; 2. Fixing bolt; 3. Magnetic suction plate; 4. Side slide groove; 5. Side slider; 6. Lifting plate; 7. Miniature cylinder; 8. Spring rod; 9. Telescopic cylinder; 10. Base plate clamp; 11. Fixing screw; 12. Upper plate clamp; 13. Built-in soft pad; 14. First magnetic suction block; 15. Support platform; 16. Negative suction port; 17. Circuit main board body; 18. Second magnetic suction block; 19. Adjusting rod; 20. Adjusting screw; 21. Side clamp. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1-5 The circuit board soldering fixture shown includes a fixture platform 1 and a main body for holding the circuit board during soldering. The fixing bolts 2 are threaded through the bottom of the fixture table 1 and are used to connect the magnetic suction plate 3 at the front end. The fixture table 1 has side sliding grooves 4 on both sides of the outside. The side sliding grooves 4 are slidably connected to the inside of the side sliding grooves 4. The side sliding plate 5 is fixedly installed on the outside of the side sliding plate 5. The miniature cylinder 7 is fixedly installed on one side of the inside of the side sliding groove 4, and the spring rod 8 is fixedly installed on the other side of the inside of the side sliding groove 4. A telescopic cylinder 9 is fixedly installed above the lifting plate 6 for spacing adjustment. A base plate clamp 10 is fixedly installed at the front end of the telescopic cylinder 9. A circuit board body 17 is placed on top of the base plate clamp 10. A second magnetic block 18 is magnetically connected above the magnetic suction plate 3. An adjusting rod 19 is fixedly installed above the second magnetic block 18. An adjusting screw 20 is threaded through the top of the adjusting rod 19. A side clamp 21 is connected to the external thread of the adjusting screw 20. The position of the base plate clamp 10 can be adjusted by pushing the side slider 5 to slide on the side of the clamping table 1 through the micro cylinder 7, so as to clamp circuit boards of different sizes and positions. After the circuit board is fixed, the position of the side clamp 21 can be moved by the second magnetic block 18 to assist in fixing the side of the circuit board.

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, the lifting plate 6 is slidably connected to the clamping table 1. The front end of the miniature cylinder 7 and the front end of the spring rod 8 are both fixedly connected to the outside of the side slider 5. The spring rod 8, which is pressed by the side slider 5, can also buffer the vibration transmitted from the circuit board to the lifting plate 6. The upper part of the bottom plate clamp 10 is threaded with a fixing screw 11. The external thread of the fixing screw 11 is connected to the upper plate clamp 12. The upper plate clamp 12 and the bottom plate clamp 10 are fixedly installed with built-in soft pads 13. The built-in soft pads 13 can provide soft clamping when the upper plate clamp 12 and the bottom plate clamp 10 clamp the circuit board, reducing the damage to the circuit board.

[0019] like Figure 1 , Figure 4 and Figure 5As shown, a first magnetic block 14 is magnetically connected above the magnetic suction plate 3. A support platform 15 is fixedly installed above the first magnetic block 14. The surface of the support platform 15 is provided with negative suction ports 16. The support platform 15 can not only provide support for the circuit board during soldering, but also enhance the positioning ability of the circuit board through the negative suction ports 16, reducing the side slippage during the soldering process. The number of negative suction ports 16 is set to multiple, and the multiple negative suction ports 16 are distributed in a ring array on the support platform 15. The overall structure of the support platform 15 is simple. The position under the circuit board can be changed by the first magnetic block 14 to meet different soldering needs. The side clamp 21 is threadedly connected to the adjustment rod 19. The side clamp 21 is symmetrically arranged with respect to the central axis of the circuit board body 17. The overall structure of the side clamp 21 and the adjustment rod 19 is simple, easy to operate, and convenient for maintenance personnel to replace in time if a fault occurs.

[0020] The working principle of this utility model is as follows: First, connect the external power supply and install the circuit board soldering fixture on the platform of the circuit board soldering equipment. Then, take out the circuit board body 17 and turn on the switch of the micro cylinder 7. The micro cylinder 7 pushes the side slider 5 to slide on the side of the fixture table 1 to adjust the position of the base plate clamp 10, thereby satisfying the clamping of circuit boards of different sizes and positions. Next, place the circuit board body 17 on the base plate clamp 10 and turn the fixing screw 11 to make the upper plate clamp 12 work together with the base plate clamp 10 to clamp the circuit board body 17. Since the upper plate clamp 12 and the base plate clamp 10 have built-in soft pads 13 fixedly installed inside, the built-in soft pads 13 can provide soft clamping when the upper plate clamp 12 and the base plate clamp 10 clamp the circuit board, reducing the damage to the circuit board. After the circuit board is fixed, the position of the support platform 15 under the circuit board can be changed by the first magnetic block 14. The support platform 15 can provide support for the circuit board during soldering, and can also be adjusted through the negative suction port 16. This design enhances the positioning capability of the circuit board and reduces side slippage during the soldering process. The second magnetic block 18 can move the position of the side clamp 21, thus providing auxiliary fixation to the side of the circuit board. Then, when the external soldering equipment is activated, the spring rod 8, pressed by the side slider 5, can buffer the vibration transmitted from the circuit board to the lifting plate 6. This design gives the circuit board soldering fixture the ability to self-adapt to size and perform composite positioning. The side slider 5 is driven by the micro cylinder 7 to achieve automatic size adjustment, avoiding manual adjustment errors and improving the compatibility of the circuit board soldering fixture. Furthermore, the magnetic force provides initial positioning, and the magnetic module supports hot-swappable replacement, saving changeover time. Finally, after completing all the installation and use of the circuit board soldering fixture according to the above operations, turn off the micro cylinder 7. If not used for a long time, simply disconnect the external power supply. This completes the usage process of the circuit board soldering fixture.

[0021] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fixture for soldering circuit boards, characterized in that: include The fixture table (1) is the main body used for clamping the circuit board during soldering; The fixing bolts (2) are threaded through the bottom of the fixture table (1) and are used to connect the front end to the magnetic suction plate (3). The fixture table (1) has side sliding grooves (4) on both sides. The side sliding grooves (4) are slidably connected to the inside of the side sliding grooves (4). The side sliding plate (5) is fixedly installed on the outside of the side sliding plate (5). The micro cylinder (7) is fixedly installed on one side of the inside of the side sliding grooves (4), and the spring rod (8) is fixedly installed on the other side of the inside of the side sliding grooves (4). Telescopic cylinder (9) is fixedly installed above lifting plate (6) for spacing adjustment. A base plate clamp (10) is fixedly installed at the front end of telescopic cylinder (9). A circuit board body (17) is placed above the base plate clamp (10). A second magnetic block (18) is magnetically connected above the magnetic suction plate (3). An adjusting rod (19) is fixedly installed above the second magnetic block (18). An adjusting screw (20) is threaded through the upper part of the adjusting rod (19). A side clamp (21) is threaded through the outer part of the adjusting screw (20).

2. The circuit board soldering fixture according to claim 1, characterized in that: The lifting plate (6) is slidably connected to the fixture table (1), and the front end of the micro cylinder (7) and the front end of the spring rod (8) are both fixedly connected to the outside of the side slider (5).

3. The circuit board soldering fixture according to claim 1, characterized in that: A fixing screw (11) is threaded through the top of the base plate clamp (10), and an upper plate clamp (12) is connected to the external thread of the fixing screw (11). An internal soft pad (13) is fixedly installed in the upper plate clamp (12) and the base plate clamp (10).

4. The circuit board soldering fixture according to claim 1, characterized in that: The magnetic plate (3) is magnetically connected to a first magnetic block (14) above it. A support platform (15) is fixedly installed above the first magnetic block (14). The surface of the support platform (15) is provided with negative suction ports (16).

5. A circuit board soldering fixture according to claim 4, characterized in that: The number of negative suction ports (16) is set to multiple, and the multiple negative suction ports (16) are distributed in a ring array on the support platform (15).

6. A circuit board soldering fixture according to claim 1, characterized in that: The side clip (21) is threadedly connected to the adjusting rod (19), and the side clip (21) is symmetrically arranged with respect to the central axis of the main circuit board body (17).

Images