Welding jig with anti-shaking function for SMT (Surface Mount Technology) processing

Abstract

The utility model relates to the technical field of SMT (surface mount technology) welding, and discloses an SMT (surface mount technology) processing welding jig with an anti-shaking function, which comprises a support table, the inner wall of the support table is fixedly connected with a reset spring, one end, far away from the inner wall of the support table, of the reset spring is fixedly connected with a movable column, and the movable column is fixedly connected with the support table. And a fixing plate is fixedly mounted on the surface of the moving column. According to the SMT machining welding jig with the anti-shaking function, a PCB is well placed, a movable column is pulled to enable a fixed plate to clamp the PCB, the movable column is reset under deformation of a reset spring, a sliding ball on a cylindrical block makes contact with a retarding groove under the action of a telescopic spring, the falling speed is reduced, and the PCB is clamped; the L-shaped clamping plate begins to be in an inclined state under the action of the torsional spring and deviates on the surface of the straight rod to clamp and position the PCB, so that the positioning effect of the PCB is guaranteed, and the PCB is stably clamped and protected.

Description

Technical Field

[0001] The utility model relates to the technical field of SMT patch welding, in particular to a welding jig for SMT processing with an anti-shaking function. Background Art

[0002] SMT soldering involves mounting pinless or short-lead electronic components on the surface of a printed circuit board (PCB) or other substrate, using methods such as reflow soldering or dip soldering to assemble them. SMT soldering is a crucial step in PCB soldering, and specialized auxiliary fixtures are required to ensure smooth soldering.

[0003] According to a public disclosure of an easy-to-use SMT soldering jig (Announcement No.: CN219145768U), the soldering jig in the above application is equipped with four rotatable holding mechanisms on the periphery of the thermal conductive soldering table, which can quickly press and fix the four corners of the circuit board, providing convenience for the patch soldering of the circuit board. It is easy to operate and use, and improves the efficiency of patch soldering. At the same time, it has excellent thermal conductivity and heat dissipation capabilities, can quickly dissipate heat from the soldered circuit board, and improve the safety of circuit board soldering.

[0004] However, during actual use of the above-mentioned equipment, when the fixed plate clamps the PCB board after the patch, it pulls the movable column so that the fixed plate clamps the surface of the PCB board under the action of the return spring. This can easily cause the fixed plate to fall at a high speed and collide with the surface of the PCB board, causing damage to PCB boards made of different materials. In view of this, we have proposed a soldering jig for SMT processing with an anti-sway function. Utility Model Content

[0005] The purpose of the present invention is to provide a soldering jig for SMT processing with an anti-shake function to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a soldering jig for SMT processing with an anti-sway function, comprising a support table, an inner wall of the support table fixedly connected to a return spring, an end of the return spring away from the inner wall of the support table fixedly connected to a movable column, a fixed plate fixedly mounted on the surface of the movable column, a fixing mechanism provided inside the support table, and a protective mechanism provided inside the support table, wherein the fixing mechanism comprises:

[0007] A deceleration groove is provided on the inner wall of the support platform, a through hole is provided on the arc surface of the movable column, a telescopic spring is fixedly connected to the inner wall of the through hole, one end of the telescopic spring away from the inner wall of the through hole is fixedly connected to a cylindrical block, and a sliding ball is movably connected to the surface of the cylindrical block;

[0008] A straight rod is fixedly mounted on the inner wall of the fixing plate, the arc surface of the straight rod is fixedly connected to the torsion spring, and one end of the torsion spring away from the arc surface of the straight rod is fixedly connected to the inner wall of the clamping plate.

[0009] Preferably, the protection mechanism includes a movable groove, which is opened on the inner wall of the fixed plate, the surface of the clamping plate is rotatably connected to the rotating knob, the inner wall of the clamping plate is threadedly connected to the threaded rod, the end of the threaded rod is fixedly installed on the movable plate, the upper surface of the movable plate is fixedly installed on the auxiliary rod, the lower surface of the movable plate is fixedly installed on the tension spring, and the lower surface of the tension spring is fixedly installed on the clamping plate.

[0010] Preferably, the cross-sectional shape of the movable groove is adapted to the cross-sectional shape of the movable plate.

[0011] Preferably, a rotation hole is opened on the surface of the clamping plate, the diameter of the rotation hole is adapted to the diameter of the straight rod, and the clamping plate is sleeved on the surface of the straight rod.

[0012] Preferably, the diameter of the through hole is adapted to the diameter of the cylindrical block, and there are a plurality of through holes, which are arranged in a circular array on the surface of the movable column.

[0013] Preferably, a through groove is provided on the surface of the cylindrical block, and the shape of the through groove is adapted to the shape of the sliding ball.

[0014] Compared with the prior art, the present invention provides a soldering jig for SMT processing with an anti-shake function, which has the following beneficial effects:

[0015] 1. This SMT processing soldering jig with anti-sway function is equipped with a fixing mechanism. After the PCB board is placed, the movable column is pulled to clamp the PCB board with the fixed plate. The movable column is reset under the deformation of the reset spring. The sliding ball on the cylindrical block contacts the deceleration groove under the action of the telescopic spring to slow down the falling speed and clamp the PCB board. Secondly, the L-shaped clamping plate begins to be in an inclined state under the action of the torsion spring, and deflects on the surface of the straight rod to clamp and position the PCB, ensuring the positioning effect of the PCB board and providing stable clamping protection for the PCB board.

[0016] 2. The SMT processing welding fixture with anti-sway function is provided with a protection mechanism. By turning the rotary knob to adjust the position of the threaded rod, the deformation of the tension spring is changed to make the clamping plate better clamp the surface of the PCB board, better clamp the PCB, and maintain the stability of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the partial cross-sectional structure of the support platform of the utility model;

[0019] Figure 3 This is a schematic diagram of the partially exploded cross-sectional structure of the fixing plate of the utility model;

[0020] Figure 4 This is a schematic diagram of the partial cross-sectional structure of the clamping plate of the utility model.

[0021] In the figure: 1. Support platform; 2. Moving column; 3. Fixing mechanism; 301. Deceleration groove; 302. Through hole; 303. Telescopic spring; 304. Cylindrical block; 305. Sliding ball; 306. Straight rod; 307. Torsion spring; 308. Clamping plate; 4. Protection mechanism; 401. Movable groove; 402. Rotating knob; 403. Threaded rod; 404. Moving plate; 405. Auxiliary rod; 406. Tension spring; 407. Clamping plate; 5. Fixing plate; 6. Return spring. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a welding jig for SMT processing with an anti-sway function, including a support table 1, the inner wall of the support table 1 is fixedly connected to a reset spring 6, the reset spring 6 is fixedly connected to a movable column 2 at one end away from the inner wall of the support table 1, a fixed plate 5 is fixedly installed on the surface of the movable column 2, a fixing mechanism 3 is provided inside the support table 1, and a protective mechanism 4 is provided inside the support table 1, the fixing mechanism 3 includes a deceleration groove 301, a through hole 302, a telescopic spring 303, a cylindrical block 304, a sliding ball 305, a straight rod 306, a torsion spring 307, and a clamping plate 308.

[0023] In one embodiment of the present utility model, the deceleration groove 301 is opened on the inner wall of the support platform 1, and a through hole 302 is opened on the arc surface of the movable column 2. The inner wall of the through hole 302 is fixedly connected to the telescopic spring 303, and the end of the telescopic spring 303 away from the inner wall of the through hole 302 is fixedly connected to the cylindrical block 304. The surface of the cylindrical block 304 is movably connected to the sliding ball 305. The straight rod 306 is fixedly installed on the inner wall of the fixed plate 5, and the arc surface of the straight rod 306 is fixedly connected to the torsion spring 307. The end of the torsion spring 307 away from the arc surface of the straight rod 306 is fixedly connected to the inner wall of the clamping plate 308.

[0024] In addition, the protection mechanism 4 includes a movable groove 401, which is opened on the inner wall of the fixed plate 5. The surface of the fixed plate 5 is rotatably connected to the rotating knob 402. The inner wall of the rotating knob 402 is threadedly connected to the threaded rod 403. The end of the threaded rod 403 is fixedly installed with a movable plate 404. The upper surface of the movable plate 404 is fixedly installed with an auxiliary rod 405. The lower surface of the movable plate 404 is fixedly installed with a tension spring 406. The lower surface of the tension spring 406 is fixedly installed with a clamping plate 407. The cross-sectional shape of the movable groove 401 is adapted to the cross-sectional shape of the movable plate 404, so that the movable plate 404 can move conveniently inside the movable groove 401.

[0025] In an embodiment of the present utility model, a rotating hole is provided on the surface of the clamping plate 308, and the diameter of the rotating hole is adapted to the diameter of the straight rod 306. The clamping plate 308 is sleeved on the surface of the straight rod 306, and the diameter of the through hole 302 is adapted to the diameter of the cylindrical block 304. There are several through holes 302, and several through holes 302 are provided in a circular array on the surface of the moving column 2 to slow down the moving column 2 and ensure that the clamping plate 407 stably clamps the surface of the PCB board. A through groove is provided on the surface of the cylindrical block 304, and the shape of the through groove is adapted to the shape of the sliding ball 305, so that the sliding ball 305 can rotate on the surface of the cylindrical block 304 to ensure the stable movement of the moving column 2.

[0026] In the present invention, when in use, the PCB board is placed, and the movable column 2 is pulled to enable the fixed plate 5 to clamp the PCB board. The movable column 2 is reset under the deformation of the reset spring 6. The sliding ball 305 on the cylindrical block 304 contacts the deceleration groove 301 under the action of the telescopic spring 303 to slow down the falling speed and clamp the PCB board. Secondly, the L-shaped clamping plate 308 begins to be in an inclined state under the action of the torsion spring 307, and deflects on the surface of the straight rod 306 to clamp and position the PCB, ensuring the positioning effect of the PCB board and providing stable clamping protection for the PCB board.

[0027] Furthermore, by rotating the rotary knob 402 to adjust the position of the threaded rod 403, the deformation of the tension spring 406 is changed to make the clamping plate 407 better clamp the surface of the PCB, thereby better clamping the PCB and maintaining the stability of the PCB.

[0028] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A soldering jig for SMT processing with an anti-sway function, comprising a support platform (1), an inner wall of the support platform (1) fixedly connected to a return spring (6), an end of the return spring (6) away from the inner wall of the support platform (1) fixedly connected to a movable column (2), a fixed plate (5) fixedly mounted on the surface of the movable column (2), characterized in that: A fixing mechanism (3) is provided inside the support platform (1), a protection mechanism (4) is provided inside the support platform (1), and the fixing mechanism (3) includes: A deceleration groove (301), the deceleration groove (301) is provided on the inner wall of the support platform (1), a through hole (302) is provided on the arc surface of the movable column (2), the inner wall of the through hole (302) is fixedly connected to a telescopic spring (303), one end of the telescopic spring (303) away from the inner wall of the through hole (302) is fixedly connected to a cylindrical block (304), and the surface of the cylindrical block (304) is movably connected to a sliding ball (305); A straight rod (306) is fixedly mounted on the inner wall of the fixed plate (5); the arc surface of the straight rod (306) is fixedly connected to a torsion spring (307); and one end of the torsion spring (307) away from the arc surface of the straight rod (306) is fixedly connected to the inner wall of the clamping plate (308).

2. The SMT processing soldering jig with anti-shake function according to claim 1, characterized in that: The protection mechanism (4) includes a movable groove (401), the movable groove (401) is opened on the inner wall of the clamping plate (308), the surface of the clamping plate (308) is rotatably connected to the rotating knob (402), the inner wall of the rotating knob (402) is threadedly connected to the threaded rod (403), the end of the threaded rod (403) is fixedly installed with a movable plate (404), the upper surface of the movable plate (404) is fixedly installed with an auxiliary rod (405), the lower surface of the movable plate (404) is fixedly installed with a tension spring (406), and the lower surface of the tension spring (406) is fixedly installed with a clamping plate (407).

3. The SMT processing soldering jig with anti-shake function according to claim 2, characterized in that: The cross-sectional shape of the movable groove (401) is adapted to the cross-sectional shape of the movable plate (404).

4. The SMT processing soldering jig with anti-shake function according to claim 1, characterized in that: A rotation hole is provided on the surface of the clamping plate (308), the diameter of the rotation hole is adapted to the diameter of the straight rod (306), and the clamping plate (308) is sleeved on the surface of the straight rod (306).

5. The SMT processing soldering jig with anti-shake function according to claim 1, characterized in that: The diameter of the through hole (302) is adapted to the diameter of the cylindrical block (304), and the number of the through holes (302) is set to be several, and the several through holes (302) are opened on the surface of the movable column (2) in a circular array.

6. The SMT processing soldering jig with anti-shake function according to claim 1, characterized in that: A through groove is provided on the surface of the cylindrical block (304), and the shape of the through groove is adapted to the shape of the sliding ball (305).

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