Selective welding equipment for circuit board welding

Abstract

The utility model relates to the technical field of selective welding, in particular to circuit board selective welding equipment, which comprises a selective welding main body, a tin pool is arranged on the upper surface of the selective welding main body, a fixed welding mechanism convenient for clamping, fixing and sliding welding of a circuit board is arranged on the upper surface of the selective welding main body, and a sliding chute is arranged on the upper surface of the selective welding main body. The sliding block is slidably connected to the interior of the sliding groove, the sliding rod is fixedly connected to the upper surface of the sliding block, the top plate is fixedly connected to the top end of the sliding rod, the fixing plate is slidably connected to the sliding rod, and the fixing groove is formed in the upper surface of the fixing plate in a penetrating mode. According to the selective welding equipment for circuit board welding, the turbulent wave pool and the smooth wave pool which are arranged in the tin pool can be used for carrying out double-wave-soldering on the circuit board, and the fixed-distance clamping and welding can be carried out on the circuit boards with different sizes by the fixed-welding mechanism which is arranged on the selective welding main body and is connected above the tin pool in a sliding manner.

Description

Technical Field

[0001] The utility model relates to the technical field of selective welding, in particular to selective welding equipment for circuit board welding. Background Art

[0002] Selective soldering, also known as selective wave soldering or selective welding, is a kind of equipment and technology used in the field of PCB plug-in through-hole soldering. The main purpose of selective soldering is to connect electronic components to the pads on the PCB board to achieve reliable electrical connection and mechanical fixation.

[0003] The above device does not have a structure for quickly fixing double wave soldering of circuit boards of different sizes when in use, so that when the existing circuit boards are wave soldered using a jet tin furnace, the clamps are mostly of fixed size and the circuit boards are soldered by hand. Not only is the size of the fixed circuit boards relatively single, but the welding effect is also poor. Based on the deficiencies of the existing technology, the utility model designs a circuit board soldering selective soldering device. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a circuit board welding selective welding device, which has the advantage of fast fixing double wave soldering for circuit boards of different sizes.

[0005] The utility model provides the following technical solutions: A circuit board welding selective welding device, comprising a selective welding body, a tin pool is provided on the upper surface of the selective welding body, and a fixing welding mechanism is provided on the upper surface of the selective welding body for clamping and sliding welding the circuit board;

[0006] The fixed welding mechanism includes a slide groove, a slider, a slide rod, a top plate, a fixed plate, a fixed groove, a support frame, a damping rod, a clamping head and a spring. The slide groove is arranged on the upper surface of the selective welding body, the slider is slidably connected to the inside of the slide groove, the slide rod is fixedly connected to the upper surface of the slider, the top plate is fixedly connected to the top of the slide rod, the fixed plate is slidably connected to the slide rod, the fixed groove passes through the upper surface of the fixed plate, the support frame is fixedly connected to the bottom of the inner wall of the fixed groove, the damping rod is fixedly connected to the four corners of the upper surface of the fixed plate, the clamping head is rotatably connected to the damping rod, and the spring is movably sleeved on the slide rod.

[0007] As a preferred technical solution of the utility model, a control button is fixedly installed on the front of the selective welding body, a fixing frame is fixedly connected to the upper surface of the selective welding body, a crest motor is fixedly connected to the bottom of the fixing frame, a transmission is arranged on the upper surface of the fixing frame, and a crest shaft is rotatably connected to the bottom of the fixing frame.

[0008] As a preferred technical solution of the utility model, a turbulent wave pool is fixedly installed inside the tin pool, and a smooth wave pool is fixedly installed inside the tin pool.

[0009] As a preferred technical solution of the utility model, the output end of the crest motor is connected to the transmission, and the top end of the crest shaft is connected to the transmission.

[0010] As a preferred technical solution of the utility model, the bottom end of the crest axis is arranged inside the tin pool.

[0011] As a preferred technical solution of the utility model, the clamping head is rotatably connected to the upper surface of the fixing plate.

[0012] As a preferred technical solution of the utility model, two ends of the spring are fixedly connected to the top plate and the fixed plate.

[0013] As a preferred technical solution of the utility model, turbulence holes are opened through the upper surface of the turbulent wave pool.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. A circuit board welding selective welding device, which places the circuit board in a fixed groove and fits the bottom with the support frame, and then rotates and toggles the clamping heads at the four corners to make them contact with the side wall or top of the circuit board to clamp or press the circuit board. Since there is strong damping in the rotation between the damping rod and the clamping head, the circuit board can be effectively prevented from slipping during the welding process. At this time, the fixed plate and the circuit board are pushed to the top of the tin pool, and then both ends of the fixed plate are pressed downward with single fingers of both hands to drive the circuit board to move downward until the pin enters the tin pool and stretches the spring. Finally, the fixed plate and the circuit board are pushed forward under the limit of the slide groove and the slider to pass through the top of the turbulent wave pool and the smooth wave pool for double wave soldering. After the welding is completed, release the two fingers to allow the spring to pull the fixed plate and the circuit board to move up and reset. The device is convenient for clamping and welding the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the selective welding main body of the utility model;

[0018] Figure 3 This is a schematic diagram of the tin pool structure of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the solid welding mechanism of the utility model.

[0020] In the figure: 1. Select the welding body; 101. Control button; 102. Fixing frame; 103. Wave crest motor; 104. Transmission device; 105. Wave crest shaft; 2. Tin pool; 201. Turbulent wave pool; 202. Smooth wave pool; 3. Fixing welding mechanism; 301. Slide groove; 302. Sliding block; 303. Sliding rod; 304. Top plate; 305. Fixing plate; 306. Fixing groove; 307. Support frame; 308. Damping rod; 309. Clamping head; 310. Spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 A circuit board welding selective welding device comprises a selective welding body 1, a tin pool 2 is provided on the upper surface of the selective welding body 1, a fixing welding mechanism 3 for clamping and sliding welding the circuit board is arranged on the upper surface of the selective welding body 1, a control button 101 is fixedly installed on the front of the selective welding body 1, a fixing frame 102 is fixedly connected to the upper surface of the selective welding body 1, a wave crest motor 103 is fixedly connected to the bottom of the fixing frame 102, a transmission device 104 is arranged on the upper surface of the fixing frame 102, a wave crest shaft 105 is rotatably connected to the bottom of the fixing frame 102, the output end of the wave crest motor 103 is connected to the transmission device 104, the top end of the wave crest shaft 105 is connected to the transmission device 104, and the bottom end of the wave crest shaft 105 is arranged inside the tin pool 2.

[0023] See also Figure 4 The fixing welding mechanism 3 includes a slide groove 301, a slider 302, a slide bar 303, a top plate 304, a fixing plate 305, a fixing groove 306, a bracket 307, a damping rod 308, a clamping head 309 and a spring 310. The slide groove 301 is provided on the upper surface of the selective welding body 1, the slider 302 is slidably connected to the inside of the slide groove 301, the slide bar 303 is fixedly connected to the upper surface of the slider 302, the top plate 304 is fixedly connected to the top of the slide bar 303, and the fixing plate 305 slides Connected to the sliding rod 303, the fixing groove 306 penetrates through the upper surface of the fixing plate 305, the supporting frame 307 is fixedly connected to the bottom of the inner wall of the fixing groove 306, the damping rod 308 is fixedly connected to the four corners of the upper surface of the fixing plate 305, the clamping head 309 is rotatably connected to the damping rod 308, the spring 310 is movably sleeved on the sliding rod 303, the clamping head 309 is rotatably connected to the upper surface of the fixing plate 305, and the two ends of the spring 310 are fixedly connected to the top plate 304 and the fixing plate 305.

[0024] By providing a fixing plate 305, a fixing groove 306, a supporting frame 307, a damping rod 308 and a clamping head 309, circuit boards of different sizes can be clamped and fixed. By providing a spring 310, the fixing plate 305 can be pulled upward. After the fixing plate 305 drives the circuit board to move and complete welding, it can be pulled upward and removed. By providing a sliding groove 301, a slider 302 and a sliding rod 303, the fixing plate 305 can be moved in a directional manner and lifted vertically.

[0025] See also Figure 3 A turbulent wave pool 201 is fixedly installed inside the tin pool 2, and a smooth wave pool 202 is fixedly installed inside the tin pool 2. Turbulent holes are opened through the upper surface of the turbulent wave pool 201.

[0026] The tin pool 2 is provided to facilitate wave soldering of the circuit board, and the turbulent wave pool 201 and the smooth wave pool 202 are provided to facilitate double wave soldering of the circuit board.

[0027] Working principle: when a circuit board selective soldering device is used, in the initial state, first, the tin pool 2 is opened on the top of the selective soldering body 1, and at the same time, the bottom of the fixing frame 102 set on the top of the selective soldering body 1 is respectively installed with a wave crest motor 103 and a wave crest shaft 105, and the two are driven by a transmission device 104 to facilitate the tin liquid in the tin pool 2 to surge, and at the same time, the turbulent wave pool 201 and the smooth wave pool 202 set in the tin pool 2 can perform double wave soldering on the circuit board, and the fixed soldering mechanism 3 installed on the selective soldering body 1 and slidably connected above the tin pool 2 can clamp and solder circuit boards of different sizes at a fixed distance;

[0028] When it is necessary to clamp and weld the circuit board, first place the circuit board in the fixing groove 306 and fit the bottom with the supporting frame 307. Then rotate and toggle the clamping heads 309 at the four corners to make them contact with the side wall or top of the circuit board to clamp or press the circuit board. Since there is strong damping in the rotation between the damping rod 308 and the clamping head 309, the circuit board can be effectively prevented from slipping during the welding process. At this time, the fixing plate 305 and the circuit board are pushed to the top of the tin pool 2. Then, both ends of the fixing plate 305 are pressed downward with one finger of both hands to drive the circuit board to move downward until the pins enter the tin pool 2 and stretch the spring 310. Finally, under the limit of the slide groove 301 and the slider 302, the fixing plate 305 and the circuit board are pushed forward to pass through the top of the turbulent wave pool 201 and the smooth wave pool 202 for double wave soldering. After the welding is completed, release the two fingers to allow the spring 310 to pull the fixing plate 305 and the circuit board to move up and reset. The device is convenient for clamping and welding the circuit board.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board selective welding device, comprising a selective welding body (1), characterized in that: A tin pool (2) is provided on the upper surface of the selective soldering body (1), and a soldering mechanism (3) is provided on the upper surface of the selective soldering body (1) for facilitating clamping and sliding soldering of the circuit board; A fixing welding mechanism (3), the fixing welding mechanism (3) comprising a slide groove (301), a slider (302), a slide rod (303), a top plate (304), a fixing plate (305), a fixing groove (306), a support frame (307), a damping rod (308), a clamping head (309) and a spring (310), the slide groove (301) being opened on the upper surface of the selective welding body (1), the slider (302) being slidably connected inside the slide groove (301), the slide rod (303) being fixedly connected to the upper surface of the slider (302), and the The top plate (304) is fixedly connected to the top of the sliding rod (303), the fixed plate (305) is slidably connected to the sliding rod (303), the fixed groove (306) is penetrated and opened on the upper surface of the fixed plate (305), the supporting frame (307) is fixedly connected to the bottom of the inner wall of the fixed groove (306), the damping rod (308) is fixedly connected to the four corners of the upper surface of the fixed plate (305), the clamping head (309) is rotatably connected to the damping rod (308), and the spring (310) is movably sleeved on the sliding rod (303).

2. A circuit board selective welding device according to claim 1, characterized in that: A control button (101) is fixedly installed on the front of the selective welding body (1), a fixing frame (102) is fixedly connected to the upper surface of the selective welding body (1), a wave crest motor (103) is fixedly connected to the bottom of the fixing frame (102), a transmission (104) is arranged on the upper surface of the fixing frame (102), and a wave crest shaft (105) is rotatably connected to the bottom of the fixing frame (102).

3. A circuit board selective welding device according to claim 1, characterized in that: A turbulent wave pool (201) is fixedly installed inside the tin pool (2), and a smooth wave pool (202) is fixedly installed inside the tin pool (2).

4. A circuit board selective welding device according to claim 2, characterized in that: The output end of the crest motor (103) is connected to the transmission (104), and the top end of the crest shaft (105) is connected to the transmission (104).

5. A circuit board selective welding device according to claim 2, characterized in that: The bottom end of the wave crest axis (105) is arranged inside the tin pool (2).

6. A circuit board selective welding device according to claim 1, characterized in that: The clamping head (309) is rotatably connected to the upper surface of the fixing plate (305).

7. A circuit board selective welding device according to claim 1, characterized in that: The two ends of the spring (310) are fixedly connected to the top plate (304) and the fixed plate (305).

8. A circuit board selective welding device according to claim 3, characterized in that: The upper surface of the turbulent wave pool (201) is provided with turbulent holes.

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