Fixing plate for terminal welding

Abstract

The utility model relates to the technical field of circuit board welding, in particular to a fixing plate for terminal welding. Comprising a bottom plate and an auxiliary device, a positioning part is arranged at the top of the bottom plate, the auxiliary device comprises an adjusting plate, a moving plate, a guide column, a threaded block, a locking nut, a clamping assembly and an abutting assembly, during machining, a circuit board is placed on the positioning part firstly and is fixed through cooperation of the clamping assembly, and a terminal mounting surface faces downwards during placement; then the terminal pins penetrate through the matching holes in the circuit board from bottom to top, the front-back position of the movable plate and the left-right position of the abutting assembly are further adjusted so that the abutting assembly can abut against the bottom of the terminal for supporting, welding machining can be conducted after a locking nut is locked, and the abutting assembly can move front and back and left and right; therefore, terminal abutting and supporting of multiple point positions can be carried out, and the problem that the use cost is seriously increased due to the fact that multiple fixing plates need to be arranged on the same circuit board product due to the fact that an existing fixing plate is poor in practicability can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board welding, in particular to a fixing plate for terminal welding. Background Art

[0002] The semiconductor materials of semiconductor devices are silicon, germanium or gallium arsenide, which can be used as rectifiers, oscillators, light emitters, amplifiers, photometers and other equipment. Diodes, transistors, chips, MOS transistors, optocouplers, thyristors, etc. on the integrated circuit board all belong to semiconductor products. When the integrated circuit board is processed, terminal welding is required, and at this time, a fixing plate is needed for fixing to facilitate manual or automated equipment for welding processing.

[0003] However, the existing fixing plates have a single function. Since there are multiple positions for terminal welding on the integrated circuit board, after the terminals are welded at the first position, the circuit board needs to be removed and fixed on the fixing plate at the second position, and then processed in turn in this way until all positions are welded completely. However, the fixing plate of this structure only fixes the terminals at a single position, and the practicability is poor, resulting in the need to set multiple fixing plates for the same circuit board product, which seriously increases the use cost. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixing plate for terminal welding, aiming to solve the problem that the existing fixing plate has poor practicability, resulting in the need to set multiple fixing plates for the same circuit board product, which seriously increases the use cost.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is as follows: The utility model provides a fixing plate for terminal welding, including a bottom plate, a positioning part is arranged on the top of the bottom plate, and an auxiliary device is further included;

[0006] The auxiliary device includes an adjusting plate, a moving plate, a guiding column, a threaded block, a locking nut, a clamping component and an abutting component. The adjusting plate is fixedly connected with the bottom plate and is located on the left side of the bottom plate. The moving plate is slidably connected with the adjusting plate and is located on the adjusting plate. The guiding column is threadedly connected with the moving plate and is slidably connected with the adjusting plate and is located on the moving plate. The threaded block is detachably connected with the moving plate and is located on the side of the moving plate close to the guiding column. The locking nut is threadedly connected with the outer threaded end of the top of the threaded block and is located on the top of the threaded block. The clamping component is arranged on both sides of the positioning part, and the abutting component is arranged on the moving plate and can move left and right.

[0007] Among them, the clamping assembly includes a rotary cylinder and a clamping plate. The rotary cylinder is fixedly connected to the positioning part and is located on both sides of the positioning part; the clamping plate is connected to the output end of the rotary cylinder and is located on the side of the output end of the rotary cylinder close to the positioning part.

[0008] Among them, the abutting assembly includes a threaded cylinder and a T-shaped threaded rod. The threaded cylinder is slidably connected to the moving plate and is located on the moving plate and can slide left and right; the T-shaped threaded rod is threadedly connected to the threaded cylinder and is located on the top of the threaded cylinder.

[0009] Among them, the abutting assembly further includes a stabilizing nut. The stabilizing nut is threadedly connected to the threaded cylinder and is located on the side of the threaded cylinder close to the moving plate.

[0010] Among them, the auxiliary device further includes a backing plate and a support plate. The backing plate is fixedly connected to the bottom plate and is located on the right side of the bottom plate and is symmetrically arranged; the support plate is fixedly connected to the backing plate and is slidably connected to the moving plate and is located on the side of the backing plate close to the moving plate.

[0011] A fixing plate for terminal welding of the present utility model, a positioning part is arranged on the top of the bottom plate for circuit board installation. The adjusting plate is installed on the left side of the bottom plate. The moving plate can slide back and forth on the adjusting plate. The guiding column is screwed on the moving plate. The threaded block is installed on the moving plate. The locking nut is threadedly connected to the outer threaded end of the top of the threaded block. The clamping assembly is arranged on both sides of the positioning part. The abutting assembly is arranged on the moving plate and can move left and right. During processing, the circuit board is placed on the positioning part and fixed by cooperating with the clamping assembly. When placing, the terminal installation surface faces down. Then, the terminal pins pass through the mating holes on the circuit board from bottom to top. Further, adjust the front and back positions of the moving plate, adjust the left and right positions of the abutting assembly, and make the abutting assembly abut against the bottom of the terminal for support. After locking the locking nut, manual or automated equipment welding processing can be carried out. Because the abutting assembly can move back and forth and left and right, multiple-point terminal abutting support can be realized, and further, the problem that the existing fixing plate has poor practicability, resulting in multiple fixing plates being required for the same circuit board product, seriously increasing the use cost, can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings.

[0013] Figure 1 It is a schematic diagram of the overall structure of the fixing plate for terminal welding of the first embodiment of the present utility model.

[0014] Figure 2 It is a schematic diagram of the structure of the adjusting plate of the first embodiment of the present utility model.

[0015] Figure 3 For the first embodiment of the present utility model Figure 2 is an enlarged view of part A in the figure.

[0016] Figure 4 is a schematic diagram of the overall structure of the fixing plate for terminal welding in the second embodiment of the present utility model.

[0017] In the figure: 101 - bottom plate, 102 - positioning part, 103 - adjusting plate, 104 - moving plate, 105 - guiding column, 106 - threaded block, 107 - locking nut, 108 - corner cylinder, 109 - clamping plate, 110 - threaded cylinder, 111 - T-shaped threaded rod, 112 - stabilizing nut, 201 - backing plate, 202 - support plate. Detailed implementation manners

[0018] In order to enable those skilled in the art to better understand the present utility model, the technical solutions of the present utility model will be further described below with reference to the drawings and embodiments.

[0019] Embodiment 1:

[0020] As Figures 1 to 3 shown, among which Figure 1 is a schematic diagram of the overall structure of the fixing plate for terminal welding, Figure 2 is a schematic diagram of the structure of the adjusting plate 103, Figure 3 is Figure 2 an enlarged view of part A in the figure. The present utility model provides a fixing plate for terminal welding: including a bottom plate 101 and an auxiliary device. A positioning part 102 is arranged on the top of the bottom plate 101. The auxiliary device includes an adjusting plate 103, a moving plate 104, a guiding column 105, a threaded block 106, a locking nut 107, a clamping assembly and an abutting assembly. The clamping assembly includes a corner cylinder 108 and a clamping plate 109. The abutting assembly includes a threaded cylinder 110, a T-shaped threaded rod 111 and a stabilizing nut 112. Through the foregoing solution, the problem that the existing fixing plate has poor practicability, resulting in the need to set multiple fixing plates for the same circuit board product, seriously increasing the use cost, can be solved. It can be understood that the foregoing solution can improve the practicability of the fixing plate and reduce the use cost.

[0021] In this embodiment, a positioning part 102 is arranged on the top of the bottom plate 101. The positioning part 102 is used for placing the circuit board. The central rectangular through cavity thereof is convenient for avoiding electronic components on the circuit board installed with electronic components. The mounting holes opened on the bottom plate 101 can facilitate the installation of the fixing plate on the working table of the welding equipment.

[0022] Among them, the adjusting plate 103 is fixedly connected to the bottom plate 101 and is located on the left side of the bottom plate 101. The moving plate 104 is slidably connected to the adjusting plate 103 and is located on the adjusting plate 103. The guiding column 105 is threadedly connected to the moving plate 104, is slidably connected to the adjusting plate 103, and is located on the moving plate 104. The threaded block 106 is detachably connected to the moving plate 104 and is located on the side of the moving plate 104 close to the guiding column 105. The locking nut 107 is threadedly connected to the outer threaded end of the top of the threaded block 106 and is located on the top of the threaded block 106. The clamping assembly is arranged on both sides of the positioning portion 102. The abutting assembly is arranged on the moving plate 104 and can move left and right. The adjusting plate 103 is fixed on the bottom plate 101 by a positioning pin and a bolt. The positioning pin and the bolt are countersunk from bottom to top. A through T-shaped chute is arranged on the right end face of the adjusting plate 103 to facilitate the sliding installation and working sliding of the T-shaped portion of the moving plate 104. The guiding column 105 can be directly installed in the threaded installation hole at the top of the T-shaped portion of the moving plate 104. The cross section of the threaded block 106 is T-shaped. The bottom rectangular flat plate portion is fixed to the top of the T-shaped portion of the moving plate 104 by a bolt. Its top is an outer threaded end to facilitate the installation of the locking nut 107. A T-shaped chute is arranged on the moving plate 104 to facilitate the arrangement of the abutting assembly and realize its left and right movement. The clamping assembly is used for fixing the circuit board.

[0023] Secondly, the corner cylinder 108 is fixedly connected to the positioning portion 102 and is located on both sides of the positioning portion 102; the clamping plate 109 is connected to the output end of the corner cylinder 108 and is located on the side of the output end of the corner cylinder 108 close to the positioning portion 102. The corner cylinder 108 is fixed on the mounting table on the positioning portion 102 by a bolt. The bolt is arranged from bottom to top. The action angle of the corner cylinder 108 driving the clamping plate 109 is 90° in the clockwise and counterclockwise directions. The clamping plate 109 is fixed on the action portion of the corner cylinder 108 by a bolt. During processing, first, adjust the required air source pressure value of the corner cylinder 108 in advance. This value only needs to be such that the circuit board can be clamped inside but not damaged. Then, control the corner cylinder 108 to act, drive the clamping plate 109 to rotate and then press down on the top edge of the circuit board for limiting. At this time, the terminal installation surface is below the circuit board, and the upper part is the welding area where the terminal pins pass through the circuit board.

[0024] Then, the threaded cylinder 110 is slidably connected to the moving plate 104 and is located on the moving plate 104, and can slide left and right; the T-shaped threaded rod 111 is threadedly connected to the threaded cylinder 110 and is located at the top of the threaded cylinder 110. The T-shaped part at the bottom of the threaded cylinder 110 can directly cooperate with the T-shaped chute on the moving plate 104 to realize left and right sliding for left and right position adjustment. The top of the T-shaped part is an external threaded part, and the top of the external threaded part is the end of the threaded cylinder. The external threaded rod at the bottom of the T-shaped threaded rod 111 can directly cooperate with the end of the threaded cylinder at the top of the threaded cylinder 110. When in use, the T-shaped threaded rod 111 can be directly rotated to change the matching distance between its top support plate and the threaded cylinder 110, so as to realize the abutting support and relaxation of the terminal.

[0025] Finally, the stabilizing nut 112 is threadedly connected to the threaded cylinder 110 and is located on the side of the threaded cylinder 110 close to the moving plate 104. The stabilizing nut 112 can be directly installed on the external threaded part at the top of the T-shaped part of the threaded cylinder 110. Because when in use, after rotating the T-shaped threaded rod 111 and abutting its top support plate against the bottom of the terminal, at this time, the threaded cylinder 110 and the T-shaped threaded rod 111 will not move left and right due to the influence of the abutting and matching structure. Then, after further tightening the stabilizing nut 112, the stability of the threaded cylinder 110 when the adjustment stops can be improved.

[0026] When using the present utility model to solve the problem that the existing fixing plate has poor practicability, resulting in the need to set multiple fixing plates for the same circuit board product, which seriously increases the use cost, during processing, first place the circuit board on the positioning part 102, then control the rotation angle cylinder 108 to act, drive the clamping plate 109 to act and cooperate to fix the circuit board. When the circuit board is placed, the terminal mounting surface faces down. Then, pass the terminal pins through the matching holes on the circuit board from bottom to top. Further, adjust the front and rear positions of the moving plate 104. The moving plate 104 can be directly pulled to adjust the front and rear positions, then pull the threaded cylinder 110 to adjust the left and right positions. Finally, rotate the T-shaped threaded rod 111 so that the top support plate of the T-shaped threaded rod 111 can abut against the bottom of the terminal for support. After locking the locking nut 107 and the stabilizing nut 112, manual or automated equipment welding processing can be carried out. Because the abutting component can realize front and rear and left and right movement through the cooperation of the adjusting plate 103 and the moving plate 104, so that the abutting support of multiple points of the terminal can be carried out, and further the problem that the existing fixing plate has poor practicability, resulting in the need to set multiple fixing plates for the same circuit board product, which seriously increases the use cost can be solved.

[0027] Embodiment 2:

[0028] As Figure 4 shown, wherein Figure 4It is a schematic diagram of the overall structure of the fixing plate for terminal welding. On the basis of the first embodiment, the present utility model provides a fixing plate for terminal welding, and the auxiliary device further includes a backing plate 201 and a support plate 202.

[0029] Wherein, the backing plate 201 is fixedly connected to the bottom plate 101, is located on the right side of the bottom plate 101, and is symmetrically arranged; the support plate 202 is fixedly connected to the backing plate 201, is slidably connected to the moving plate 104, and is located on the side of the backing plate 201 close to the moving plate 104. The backing plate 201 is fixed on the bottom plate 101 by bolts and is symmetrically arranged. The support plate 202 is fixed on the backing plate 201 by bolts, and the top end surface thereof can be slidably matched with the bottom surface of the moving plate 104 on the side away from the adjusting plate 103.

[0030] In this embodiment, by providing the backing plate 201 and the support plate 202, the working stability of the moving plate 104 can be further improved.

[0031] The above embodiments only exemplarily illustrate the principles and effects of the present utility model, rather than being used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A fixing plate for terminal welding, comprising a bottom plate, wherein a positioning portion is provided on the top of the bottom plate, and it is characterized in that, an auxiliary device is further included; The auxiliary device includes an adjusting plate, a moving plate, a guiding column, a threaded block, a locking nut, a clamping assembly and an abutting assembly. The adjusting plate is fixedly connected to the bottom plate and is located on the left side of the bottom plate. The moving plate is slidably connected to the adjusting plate and is located on the adjusting plate. The guiding column is threadedly connected to the moving plate and is slidably connected to the adjusting plate and is located on the moving plate. The threaded block is detachably connected to the moving plate and is located on the side of the moving plate close to the guiding column. The locking nut is threadedly connected to the outer threaded end of the top of the threaded block and is located on the top of the threaded block. The clamping assembly is arranged on both sides of the positioning portion. The abutting assembly is arranged on the moving plate and can move left and right.

2. The fixing plate for terminal welding according to claim 1, wherein, the clamping assembly includes a corner cylinder and a clamping plate. The corner cylinder is fixedly connected to the positioning portion and is located on both sides of the positioning portion; the clamping plate is connected to the output end of the corner cylinder and is located on the side of the output end of the corner cylinder close to the positioning portion.

3. The fixing plate for terminal welding according to claim 1, wherein, the abutting assembly includes a threaded cylinder and a T-shaped threaded rod. The threaded cylinder is slidably connected to the moving plate and is located on the moving plate and can slide left and right; the T-shaped threaded rod is threadedly connected to the threaded cylinder and is located on the top of the threaded cylinder.

4. The fixing plate for terminal welding according to claim 3, wherein, the abutting assembly further includes a stabilizing nut. The stabilizing nut is threadedly connected to the threaded cylinder and is located on the side of the threaded cylinder close to the moving plate.

5. The fixing plate for terminal welding according to claim 1, wherein, the auxiliary device further includes a backing plate and a support plate. The backing plate is fixedly connected to the bottom plate and is located on the right side of the bottom plate and is symmetrically arranged; the support plate is fixedly connected to the backing plate and is slidably connected to the moving plate and is located on the side of the backing plate close to the moving plate.

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