A multi-pin component PCBA welding auxiliary device

Abstract

The utility model relates to PCBA welding equipment technical field discloses a kind of multi-pin component PCBA welding auxiliary device, including workbench, fixed mechanism and moving mechanism, fixed mechanism is movably installed on workbench by moving mechanism, moving mechanism includes sliding block in workbench sliding slot two sliding, for the guiding limit block and limit slot, and for locking screw knob two, fixed mechanism is arranged on L-shaped plate, by rotating screw knob one drives inclined block to move, inclined block extrusion and the pulley connected with clamping block, so that clamping block rotates and clamps PCBA board.The utility model solves the problem of inconvenient adjustment, low positioning accuracy of PCBA welding auxiliary device in prior art, with the advantages of flexible position adjustment, adapting to different size PCBA board, clamping quickly and firmly.

Description

Technical Field

[0001] This utility model relates to the field of PCBA welding equipment technology, and in particular to an auxiliary device for welding multi-pin PCBA components. Background Technology

[0002] In the electronic product manufacturing process, the soldering of PCBA boards is crucial. The stability and precision requirements of the soldering process are extremely high. Therefore, auxiliary devices are usually needed to fix and support the PCBA boards.

[0003] Existing PCBA soldering auxiliary devices typically include a base and clamping components for fixing the PCBA board. Some clamping components have fixed dimensions, only adaptable to specific PCBA board sizes. When producing PCBA boards of different sizes, the entire auxiliary device must be replaced, increasing production costs and reducing production line flexibility. To address these issues, some position-adjustable soldering auxiliary devices have emerged. However, the adjustment process for these devices is often cumbersome, requiring operators to manually loosen multiple fasteners, move the clamping components to the predetermined position, and then tighten them one by one. This entire adjustment process is time-consuming and inefficient, failing to meet the demands of rapid line changeovers in modern production. Furthermore, the clamping structure of existing auxiliary devices itself has shortcomings. Some devices employ clamping methods that cannot provide stable and uniform clamping force. Under the thermal shock of soldering, the PCBA board may experience slight displacement or deformation, affecting the precise alignment of solder joints and causing soldering defects such as cold solder joints or bridging, thus failing to guarantee the soldering quality of multi-pin components.

[0004] Therefore, this utility model proposes a multi-pin component PCBA soldering auxiliary device to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems of inconvenient PCBA board clamping and adjustment, long clamping time and low positioning accuracy in the existing multi-pin component PCBA welding auxiliary devices, this utility model aims to provide a multi-pin component PCBA welding auxiliary device with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a welding auxiliary device for multi-pin PCBA components, including: a worktable, a welding device, a fixing mechanism, and a moving mechanism.

[0007] The fixing mechanism includes an L-shaped plate, a threaded knob connected to the outer wall of the L-shaped plate, an inclined block rotatably connected to the end of the threaded knob, a groove on the top wall of the L-shaped plate, a U-shaped block fixedly connected to one end of the top wall of the L-shaped plate, a clamping block rotatably connected to the inner side of the U-shaped block, and a pulley rotatably connected to the end of the clamping block. The moving mechanism includes a slider fixedly connected to the bottom wall of the L-shaped plate, a groove on the worktable, a limiting block fixedly connected to the outer wall of the slider, a limiting groove in the inner wall of the groove, a threaded knob on the top of the slider, and a threaded hole on the top of the slider that mates with the threaded knob.

[0008] Furthermore, the workbench is fixedly connected to the welding device, the L-shaped plate is movably installed on the workbench through the moving mechanism, the fixing mechanism is set on the L-shaped plate, the slider is slidably engaged in the second groove on the workbench, the threaded knob is threadedly engaged in the threaded hole at the top of the slider, and the inclined block is slidably engaged in the first groove on the top wall of the L-shaped plate.

[0009] Preferably, the inclined block is slidably disposed in the first groove, so that the inclined block can effectively squeeze the pulley when sliding, and the pulley in turn drives the clamping block to rotate around the U-shaped block as the base point.

[0010] Preferably, the U-shaped block is fixedly connected to one end of the top wall of the L-shaped plate, the clamping block is rotatably connected to the inside of the U-shaped block, the pulley is rotatably connected to the end of the clamping block, and the pulley is in contact with the inclined block.

[0011] Preferably, the threaded knob 2 is inserted into the threaded hole at the top of the slider, and the end of the threaded knob 2 can selectively press against the bottom of the groove 2.

[0012] Preferably, when the slider slides in the second slide groove, the limiting block slides synchronously in the limiting groove.

[0013] Preferably, the limiting block is fixedly connected to the front and rear sides of the outer wall of the slider.

[0014] Preferably, the inner wall of the second slide is provided with limiting grooves corresponding to the limiting block on the front and rear sides.

[0015] Preferably, multiple sliding grooves are equidistantly provided on the worktable.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problems of inconvenient adjustment and long clamping time of PCBA welding auxiliary devices in the prior art by setting a moving mechanism, which includes a slider that slides in the worktable slide groove, a limiting block and a limiting groove for limiting the longitudinal movement of the slider, and a threaded knob for locking the position of the slider. It achieves the effect of flexibly adjusting the position of the PCBA board, adapting to PCBA boards of different sizes, and greatly shortening the clamping time.

[0017] 2. This utility model solves the problem of low positioning accuracy of PCBA welding auxiliary devices in the prior art by setting a fixing mechanism, which includes a threaded knob, an inclined block, a pulley that slides in the L-shaped plate groove, and a clamping block that is connected to the L-shaped plate and rotates to clamp the PCBA board. It achieves the effect of firmly clamping and accurately positioning the PCBA board and effectively preventing the PCBA board from moving during the welding process. Attached Figure Description

[0018] Figure 1 This is a perspective view of a multi-pin component PCBA soldering auxiliary device proposed in this utility model; Figure 2 This is a front view of a multi-pin component PCBA soldering auxiliary device proposed in this utility model; Figure 3 This is an exploded view of a multi-pin component PCBA soldering auxiliary device proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a partial exploded view of the soldering auxiliary device for multi-pin PCBA proposed in this utility model; Figure 6 This is a partial structural exploded view of a multi-pin component PCBA soldering auxiliary device proposed in this utility model.

[0019] Legend: 1. Workbench; 2. Welding device; 3. Fixing mechanism; 301. L-shaped plate; 302. Threaded knob one; 303. Inclined block; 304. Slide groove one; 305. U-shaped block; 306. Clamping block; 307. Pulley; 4. Moving mechanism; 401. Slider; 402. Slide groove two; 403. Limiting block; 404. Limiting groove; 405. Threaded knob two; 406. Threaded hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] Example: Please refer to Figures 1 to 6This utility model provides a multi-pin component PCBA soldering auxiliary device, which aims to solve the problems of inconvenient PCBA board clamping and adjustment, long clamping time and insufficient positioning accuracy in the prior art.

[0022] like Figure 1 and Figure 2 As shown, the multi-pin PCBA soldering auxiliary device includes a worktable 1 and a soldering device 2 fixedly connected to the worktable 1. The worktable 1 serves as the mounting base for the entire device, and the soldering device 2 is used to perform soldering operations on the PCBA board. A fixing mechanism 3 and a moving mechanism 4 are also installed on the worktable 1. The moving mechanism 4 is located between the worktable 1 and the fixing mechanism 3. The multi-pin PCBA soldering auxiliary device uses the moving mechanism 4 to movably install the fixing mechanism 3 on the worktable 1. The fixing mechanism 3 is mainly used to clamp and fix the PCBA board, while the moving mechanism 4 is used to realize the lateral movement and precise positioning of the fixing mechanism 3 on the worktable 1.

[0023] The fixing mechanism 3 includes an L-shaped plate 301, which serves as the main body of the fixing mechanism 3 and is primarily used to support one edge of the PCBA board. A threaded knob 302 is threadedly connected to the outer wall of the L-shaped plate 301. A wedge 303 is rotatably connected to the end of the threaded knob 302. A groove 304 is formed on the top wall of the L-shaped plate 301, which engages with the wedge 303, allowing the wedge 303 to slide on the top wall of the L-shaped plate 301. A U-shaped block 305 is fixedly connected to one end of the top wall of 301. A clamping block 306 is rotatably connected inside the U-shaped block 305. A pulley 307 is rotatably connected to the end of the clamping block 306. The threaded knob 302 can drive the inclined block 303 to move linearly when rotated through the threaded structure. The movement of the inclined block 303 will squeeze the pulley 307. The pulley 307 then converts this squeezing force into the rotational force of the clamping block 306, so that the clamping block 306 can firmly clamp the PCBA board.

[0024] The moving mechanism 4 includes a slider 401 fixedly connected to the bottom wall of the L-shaped plate 301. Multiple sliding grooves 402 are equidistantly provided on the worktable 1. The slider 401 slides within the sliding grooves 402, enabling horizontal movement of the L-shaped plate 301. To prevent longitudinal deviation of the slider 401 during movement, a limiting block 403 is fixedly connected to the front and rear sides of the outer wall of the slider 401. Furthermore, limiting grooves 404 corresponding to the limiting block 403 are provided on the front and rear sides of the inner wall of the sliding grooves 402. Thus, when the slider 401 slides... The limiting block 403 will slide synchronously in the limiting groove 404 to ensure that the movement trajectory of the L-shaped plate 301 is accurate and stable. In order to lock the L-shaped plate 301 after it moves to the appropriate position, the top of the slider 401 is provided with a threaded knob 405, and the top of the slider 401 is provided with a threaded hole 406 that cooperates with the threaded knob 405. The threaded knob 405 passes through the threaded hole 406 and is inserted into the slider 401. Its end can press against the bottom of the groove 402, thereby fixing the L-shaped plate 301.

[0025] Please refer to Figures 3 to 6 The structure of the fixing mechanism 3 is integrated on the L-shaped plate 301. A threaded knob 302 is threadedly connected to the outer wall of the L-shaped plate 301. An inclined block 303 is mounted on the end of the threaded knob 302 by a rotatable connection. This connection method allows the inclined block 303 to move synchronously in a straight line when the threaded knob 302 rotates and moves along its own axis. The inclined block 303 can also rotate relative to the threaded knob 302 to adapt to changes in the contact angle. A sliding groove 304 is provided on the top wall of the L-shaped plate 301. The sliding groove 304 provides guidance and limit for the sliding of the inclined block 303. The bottom surface of the inclined block 303 slides in cooperation with the bottom of the groove 304, and the side wall of the inclined block 303 slides in cooperation with the wall of the groove 304, allowing the inclined block 303 to slide inside. This structure ensures the stability and directional accuracy of the inclined block 303 during movement.

[0026] At one end of the top wall of the L-shaped plate 301, a U-shaped block 305 is fixedly connected. The U-shaped block 305 provides a mounting base and a rotation fulcrum for the subsequent clamping components. The base of the clamping block 306 is rotatably connected to the inside of the U-shaped block 305. The clamping block 306 can swing at a certain angle with the U-shaped block 305 as the fulcrum. At the end of the clamping block 306 away from the rotating base, a pulley 307 is rotatably connected. The pulley 307 can rotate freely to reduce friction. In the assembled state, the pulley 307 contacts and engages with the inclined block 303. Specifically, the outer circumferential surface of the pulley 307 contacts the inclined surface of the inclined block 303.

[0027] This linkage clamping structure, consisting of a threaded knob 302, a wedge block 303, a pulley 307, and a clamping block 306, converts the rotational motion of the threaded knob 302 into the rotational clamping motion of the clamping block 306 through the linear motion of the wedge block 303. The entire transmission chain is clear and reliable. Operators only need to rotate the threaded knob 302 to easily clamp and release the PCBA board, greatly improving clamping efficiency.

[0028] In a preferred embodiment, at the threaded knob 302 of the L-shaped plate 301, in order to achieve precise and smooth sliding of the inclined block 303 in the slide groove 304, the inclined block 303 is slidably disposed in the slide groove 304, so that the side of the inclined block 303 and the inner wall of the slide groove 304, and the bottom surface of the inclined block 303 and the bottom surface of the slide groove 304 maintain sliding engagement. Furthermore, when the inclined block 303 slides, it can effectively squeeze the pulley 307, and the pulley 307 in turn drives the clamping block 306 to rotate around the U-shaped block 305 as the base point, thereby completing the clamping action of the PCBA board.

[0029] As another preferred embodiment, in order to ensure the stability and reliability of the clamping transmission chain, the U-shaped block 305 is fixedly connected to one end of the top wall of the L-shaped plate 301, and the bottom of the clamping block 306 is rotatably connected to the inside of the U-shaped block 305, allowing the clamping block 306 to swing around the U-shaped block 305. At the same time, the central axis of the pulley 307 is rotatably connected to the end of the clamping block 306, and the pulley 307 can contact and cooperate with the inclined surface of the inclined block 303 to achieve effective torque transmission.

[0030] In another preferred embodiment, in order to achieve rapid positioning and locking of the L-shaped plate 301, a second threaded knob 405 is inserted into the threaded hole 406 at the top of the slider 401. The thread of the second threaded knob 405 engages with the internal thread of the threaded hole 406. When the second threaded knob 405 is rotated, its end can selectively press against the bottom of the groove 402. The friction generated securely fixes the slider 401 and the connected L-shaped plate 301 to the worktable 1, effectively preventing movement and vibration.

[0031] In another preferred embodiment, to ensure the accuracy of the trajectory of the L-shaped plate 301 during its movement on the worktable 1, when the slider 401 slides within the second slide groove 402, the limiting block 403 simultaneously slides within the limiting groove 404. The dimensions of the limiting block 403 are precisely matched with the width of the limiting groove 404, ensuring that the slider 401 can only move in the longitudinal direction of the second slide groove 402, and cannot undergo lateral or rotational displacement. As a further preferred embodiment, in order to improve the stability of the moving mechanism 4, the limiting block 403 is fixedly connected to the front and rear sides of the outer wall of the slider 401, that is, the limiting block 403 is provided at both the front and rear ends of the slider 401. This double-point limiting structure can further enhance the moving stability of the slider 401 in the second groove 402.

[0032] As another preferred embodiment, corresponding to the aforementioned limiting block 403, the inner wall of the second slide 402 is provided with a limiting groove 404 corresponding to the limiting block 403 on the front and rear sides. The shape and size of the limiting groove 404 are precisely matched with the limiting block 403, thereby forming a tight limiting and guiding structure, ensuring smooth cooperation between the limiting block 403 and the limiting groove 404 throughout the entire range of movement.

[0033] In another preferred embodiment, in order to adapt to the soldering requirements of PCBA boards of different sizes, multiple slide grooves 402 are provided at equal intervals on the worktable 1. These slide grooves 402 are evenly distributed along the length of the worktable 1, so that the L-shaped plate 301 can be moved and locked in any slide groove 402 by the slider 401, thereby achieving a wider range of adaptability to PCBA boards and more precise position adjustment.

[0034] Working principle: When soldering PCBA boards, the operator first places the PCBA board on the workbench 1. Since the bottom of the L-shaped board 301 is equipped with a moving mechanism 4, the operator can move the L-shaped board 301 on the workbench 1 manually or by motor drive according to the size of the PCBA board, until the L-shaped board 301 is close to the PCBA board, so that one edge of the PCBA board is placed on the L-shaped board 301. At this time, the L-shaped board 301 can be accurately positioned by the moving mechanism 4. After the position of L-shaped plate 301 is determined, the operator needs to lock L-shaped plate 301. At this time, threaded knob 405 is inserted into the threaded hole 406 at the top of slider 401. By rotating threaded knob 405, threaded knob 405 rotates and moves downward in the threaded hole 406 of slider 401, and its end presses tightly against the bottom of groove 402. The threaded structure of threaded knob 405 can generate a sufficiently large axial thrust to firmly press slider 401 against the bottom of groove 402. At the same time, the self-locking characteristic of the thread ensures that threaded knob 405 remains in a stable locked state, thereby reliably fixing the position of L-shaped plate 301 on workbench 1 and preventing any movement or shaking during the welding process. Through moving mechanism 4, fixing mechanism 3 can flexibly adjust its position on workbench 1 to adapt to PCBA boards of different length and width specifications. After the L-shaped plate 301 is positioned and locked, the operator needs to clamp the PCBA board. The operator rotates the threaded knob 302, which is threaded to the outer wall of the L-shaped plate 301. The knob rotates on the L-shaped plate 301 and moves along the axial direction. Since the inclined block 303 is rotatably connected to the end of the threaded knob 302, and the top wall of the L-shaped plate 301 has a sliding groove 304, the inclined block 303 slides in the sliding groove 304. The movement of the threaded knob 302 will drive the inclined block 303 to slide linearly in the sliding groove 304. During the sliding of the inclined block 303, the inclined surface will gradually approach and squeeze the pulley 307 rotatably connected to the end of the clamping block 306. When the pulley 307 is squeezed by the inclined block 303, it will rotate upward on the inclined surface of the inclined block 303. Since the pulley 307 is rotatably connected to the end of the clamping block 306, the force and rotation of the pulley 307 will drive the clamping block 306 to rotate within the U-shaped block 305 with the U-shaped block 305 as the base point. The U-shaped block 305 is fixedly connected to one end of the top wall of the L-shaped plate 301, providing a stable fulcrum for the rotation of the clamping block 306. As the clamping block 306 rotates, the end of the clamping block 306 or the end near the PCBA board will gradually move towards the PCBA board and eventually clamp the PCBA board tightly, thereby achieving a firm fixation of the PCBA board. Through this ingenious design of the fixing mechanism 3 on the L-shaped plate 301, the clamping time of the PCBA board can be greatly shortened and the production efficiency can be improved. Once the PCBA board is securely clamped and positioned on the worktable 1, the operator can activate the welding device 2, which is fixedly connected to the back of the worktable 1, to perform precise welding operations on the PCBA board. Throughout the welding process, the PCBA board remains stable, effectively avoiding welding defects caused by PCBA board movement. It is particularly suitable for the high-precision welding needs of multi-pin components.

Claims

1. A soldering auxiliary device for multi-pin PCBAs, comprising: The workbench (1) and the welding device (2) and fixing mechanism (3) fixedly connected to the workbench (1); Its characteristic is that it further includes: L-shaped plate (301), the L-shaped plate (301) is movably mounted on the workbench (1) by a moving mechanism (4), the fixing mechanism (3) is set on the L-shaped plate (301), the fixing mechanism (3) includes a threaded knob (302), an inclined block (303), a slide groove (304), a U-shaped block (305), a clamping block (306) and a pulley (307). The moving mechanism (4) includes a slider (401) fixedly connected to the bottom wall of the L-shaped plate (301). The worktable (1) is provided with a second slide groove (402) for the slider (401) to slide. The slider (401) is provided with a threaded knob (405) and a threaded hole (406) for locking the slider (401) in the second slide groove (402). A limit block (403) is fixedly connected to the outer wall of the slider (401). A limit groove (404) that cooperates with the limit block (403) is provided on the inner wall of the second slide groove (402).

2. The multi-pin component PCBA soldering auxiliary device according to claim 1, characterized in that, The threaded knob (302) is threaded to the outer wall of the L-shaped plate (301), the inclined block (303) is rotatably connected to the end of the threaded knob (302), and the slide groove (304) is opened on the top wall of the L-shaped plate (301) for the inclined block (303) to slide.

3. The multi-pin component PCBA soldering auxiliary device according to claim 2, characterized in that, The U-shaped block (305) is fixedly connected to one end of the top wall of the L-shaped plate (301), the clamping block (306) is rotatably connected to the inner side of the U-shaped block (305), the pulley (307) is rotatably connected to the end of the clamping block (306), and the pulley (307) is in contact with the inclined block (303).

4. The multi-pin component PCBA soldering auxiliary device according to claim 1, characterized in that, The threaded knob two (405) is inserted into the threaded hole (406) at the top of the slider (401), and the end of the threaded knob two (405) can selectively press against the bottom of the groove two (402).

5. The multi-pin component PCBA soldering auxiliary device according to claim 1, characterized in that, When the slider (401) slides in the second slide groove (402), the limiting block (403) slides synchronously in the limiting groove (404).

6. The multi-pin component PCBA soldering auxiliary device according to claim 1, characterized in that, The limiting block (403) is fixedly connected to the front and rear sides of the outer wall of the slider (401).

7. The multi-pin component PCBA soldering auxiliary device according to claim 6, characterized in that, The inner wall of the second slide (402) is provided with a limiting groove (404) corresponding to the limiting block (403) on the front and back sides.

8. The multi-pin component PCBA soldering auxiliary device according to claim 1, characterized in that, The workbench (1) is provided with multiple sliding grooves (402) at equal intervals.

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