Pin welding tool

Abstract

The utility model provides a kind of PIN needle welding tool, including first locating block, second locating block and PIN needle fixing block, first locating block includes first locating block main body and cover plate, first locating block main body upper end middle part is equipped with first installation slot, first installation slot is equipped with the PCB fixed slot for fixed PCB board assembly, cover plate is covered on installation slot and can press hold PCB board assembly, second locating block front end middle part is equipped with second installation slot, PIN needle fixing block is installed in second installation slot, PIN needle fixing block front end is equipped with multiple PIN needle fixing holes for fixed PIN needle, and the butt joint positioning mechanism is equipped between the both sides of second locating block front end and the both sides of first locating block main body front end.The utility model structure is simple, and positioning is accurate, convenient and fast to operate, save time and effort, greatly improve welding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding fixtures, and in particular to a PIN pin welding fixture. Background Technology

[0002] The main functions of PCB board soldering to female pins include ensuring electrical connections, signal transmission, and component fixation. The electrical performance of female pins varies between different brands. Pin soldering not only provides electrical connections but also serves to secure components. Through soldering, the female pins are firmly fixed to the PCB board, preventing components from loosening or falling off during vibration or movement. As a connecting bridge between circuit boards, the female pins transmit electrical or data signals through their pins, ensuring efficient communication between various modules of the device.

[0003] In existing technology, when soldering the female pins on side A, a small vise is used to fix the PCB board (side A facing up). Each female pin is held by hand, aligned with the pad on the PCB board, and solder is applied to the corresponding soldering position on the pad. This process is repeated sequentially. When soldering the pins on side B, the small vise is released, and the action of fixing side A is repeated to complete the connection.

[0004] When using a small vise to hold a PCB board, the handles must be loosened and then tightened, wasting a lot of time, increasing labor intensity, and causing employee fatigue, leading to low efficiency. Holding the female pin to the PCB board pads is difficult to align, and hand fatigue is common, making accurate soldering impossible and labor-intensive. Adding solder to the PCB board pads and corresponding pin locations is risky due to the short, high-heat-conducting female pins, easily causing burns. Repeatedly holding the PCB board while soldering pins on both sides (A and B) is cumbersome. Non-standard pin soldering positions pose safety risks, and the standardization of operations is low. Soldering requires highly skilled and experienced operators, which is detrimental to large-scale operations and production. Utility Model Content

[0005] To address the problems of low welding efficiency and inaccurate welding position of individual female pins in existing technologies, this invention provides a safe and fast PIN pin welding fixture for welding female pins onto PCB boards.

[0006] This utility model provides a PIN pin soldering fixture, including a first positioning block, a second positioning block, and a PIN pin fixing block. The first positioning block includes a first positioning block body and a cover plate. A first mounting groove is provided in the middle of the upper end of the first positioning block body. A PCB fixing groove for fixing a PCB board assembly is provided in the first mounting groove. The cover plate covers the mounting groove and can hold the PCB board assembly. A second mounting groove is provided in the middle of the front end of the second positioning block. The PIN pin fixing block is installed in the second mounting groove. A plurality of PIN pin fixing holes for fixing PIN pins are provided in the front end of the PIN pin fixing block. A docking positioning mechanism is provided between the two sides of the front end of the second positioning block and the two sides of the front end of the first positioning block body.

[0007] As a further improvement of this utility model, the docking positioning mechanism includes two first magnets and two positioning pins of different diameters disposed on both sides of the front end of the first positioning block body, and also includes two second magnets and two positioning holes disposed on both sides of the front end of the second positioning block and adapted to the first magnets, respectively adapted to the two positioning pins.

[0008] As a further improvement of this utility model, a foolproof pin is provided at one end of the PCB fixing groove, and a foolproof groove is provided on one side of the PCB board assembly.

[0009] As a further improvement of this utility model, the first mounting groove is provided with a limiting pin and two third magnets located on both sides of the limiting pin at one end of the PCB fixing groove away from the second positioning block. The cover plate is provided with a limiting hole adapted to the limiting pin and two fourth magnets adapted to the two third magnets.

[0010] As a further improvement of this utility model, the rear end of the first positioning block body is also provided with two threaded holes that communicate with the PCB fixing groove, and a clamping screw is provided in each of the two threaded holes.

[0011] As a further improvement of this utility model, the front end of the cover plate is provided with a welding clearance groove on side A, and the front end of the fixing groove is provided with a welding clearance groove on side B.

[0012] As a further improvement of this utility model, the PIN pin fixing block is fixed in the second mounting groove by bolts.

[0013] As a further improvement of this utility model, there are multiple PIN pin fixing blocks, and the position and number of PIN pin fixing holes on each PIN pin fixing block are different.

[0014] The beneficial effects of this utility model are: Attached Figure Description

[0015] Figure 1This is an exploded structural diagram of a PIN pin welding fixture according to the present invention; Figure 2 This is a schematic diagram of the structure of the first positioning block of a PIN pin welding fixture according to this utility model; Figure 3 This is a schematic diagram of the structure of the second positioning block of a PIN pin welding fixture according to this utility model; Figure 4 This is a reference diagram showing the assembled state of a PIN pin welding fixture according to this utility model; Figure 5 This is a reference diagram showing the PIN pin welding fixture after assembly, from another angle, in its usage state.

[0016] Reference numerals: 1-First positioning block; 2-Second positioning block; 3-PIN pin fixing block; 4-PCB board assembly; 5-PIN pin; 11-First positioning block body; 12-Cover plate; 111-First mounting groove; 112-PCB fixing groove; 113-Positioning pin; 114-Anti-misalignment pin; 115-B-side welding clearance groove; 116-Limiting pin; 117-Third magnet; 118-Threaded hole; 119-Clamping screw; 121-Limiting hole; 122-Fourth magnet; 123-A-side welding clearance groove; 21-Inside the second mounting groove; 22-Second magnet; 23-Positioning hole. Detailed Implementation

[0017] In the description of this utility model, it should be understood that if there are descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationship, the orientation description may be based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0018] In the description of this utility model, if there is a description of quantity, "several" means one or more, "more than" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the number itself, while "above," "below," "within," etc. are understood to include the number itself. If there is a description of "first" or "second," it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0019] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0020] like Figures 1 to 5 As shown, this utility model discloses a PIN soldering fixture, including a first positioning block 1, a second positioning block 2, and a PIN fixing block 3. The first positioning block 1 includes a first positioning block body 11 and a cover plate 12. The upper middle part of the first positioning block body 11 is provided with a first mounting groove 111. The first mounting groove 111 is provided with a PCB fixing groove 112 for fixing a PCB board assembly 4. The cover plate 12 covers the mounting groove and can press the PCB board assembly 4. The front middle part of the second positioning block 2 is provided with a second mounting groove. The PIN fixing block 3 is installed in the second mounting groove 21. The front end of the PIN fixing block 3 is provided with a plurality of PIN fixing holes for fixing PIN pins 5. The two sides of the front end of the second positioning block 2 are provided with a docking positioning mechanism between the two sides of the front end of the first positioning block body 11 and the two sides of the front end of the second positioning block 2.

[0021] In use, first place the PCB board assembly 4 into the PCB fixing slot 112 on the first positioning body, then cover it with the cover plate 12 for fixation, then insert the PIN pins 5 to be soldered into the PIN pin fixing holes on the PIN pin fixing block 3 in sequence, then mate the first positioning block 1 and the second positioning block 2 together and use the docking positioning mechanism to dock and fix them so that the PIN pins are adapted to the solder joints on the PCB board assembly 4, so that the PIN pins can be soldered.

[0022] In this invention, the docking positioning mechanism includes two first magnets and two positioning pins 113 of different diameters located on both sides of the front end of the first positioning block body 11, and two second magnets 22 located on both sides of the front end of the second positioning block 2 and adapted to the first magnets, and two positioning holes 23 adapted to the two positioning pins 113 respectively. The magnetic attraction mechanism enables rapid docking, while the two positioning holes 23 of different diameters and the positioning pins 113 provide error-proof positioning, ensuring accurate docking.

[0023] In this invention, a misaligned pin 114 is provided at one end of the PCB fixing groove 112, and a misaligned groove is provided on one side of the PCB board assembly 4. This can prevent the PCB board assembly 4 from being installed incorrectly.

[0024] In this invention, the first mounting groove 111, located at the end of the PCB fixing groove 112 away from the second positioning block 2, is further provided with a limiting pin 116 and two third magnets 117 located on both sides of the limiting pin 116. The cover plate 12 is provided with limiting holes 121 that fit with the limiting pin 116 and two fourth magnets 122 that fit with the two third magnets 117. The cover plate 12 can be quickly installed and limited by the magnetic attraction mechanism and the limiting pin 116, making the operation convenient and quick.

[0025] In this invention, the rear end of the first positioning block body 11 is provided with two threaded holes 118 that communicate with the PCB fixing groove 112, and a clamping screw 119 is provided in each of the two threaded holes 118. When the PCB board assembly 4 is installed in the PCB fixing groove 112, it can be clamped and limited by the two clamping screws 119 to prevent loosening and ensure welding accuracy.

[0026] In this invention, the front end of the cover plate 12 is provided with a welding avoidance groove 123 on side A, and the front end of the fixing groove is provided with a welding avoidance groove 115 on side B. This can avoid the solder joints on the PCB board assembly 4, ensuring that the two sides of the PCB board assembly 4 are welded separately.

[0027] In this invention, the PIN pin fixing block 3 is fixed in the second mounting groove 21 by bolts, making it convenient and quick to assemble and disassemble.

[0028] In this invention, there are multiple PIN pin fixing blocks 3, and the position and number of PIN pin fixing holes on each PIN pin fixing block 3 are different. This allows for the replacement of the corresponding PIN pin fixing block 3 according to the solder joint position of different PCB boards, resulting in better versatility.

[0029] This utility model has a simple structure, precise positioning, convenient and quick operation, saves time and effort, and greatly improves welding efficiency.

[0030] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A PIN soldering fixture, characterized in that: The device includes a first positioning block, a second positioning block, and a PIN pin fixing block. The first positioning block includes a first positioning block body and a cover plate. The upper middle part of the first positioning block body is provided with a first mounting groove. The first mounting groove is provided with a PCB fixing groove for fixing a PCB board assembly. The cover plate covers the mounting groove and can hold the PCB board assembly. The front middle part of the second positioning block is provided with a second mounting groove. The PIN pin fixing block is installed in the second mounting groove. The front end of the PIN pin fixing block is provided with a plurality of PIN pin fixing holes for fixing PIN pins. The two sides of the front end of the second positioning block are provided with a docking positioning mechanism between the two sides of the front end of the first positioning block body and the two sides of the front end of the second positioning block body.

2. The PIN soldering fixture according to claim 1, characterized in that: The docking and positioning mechanism includes two first magnets and two positioning pins of different diameters located on both sides of the front end of the first positioning block body, as well as two second magnets and two positioning holes located on both sides of the front end of the second positioning block and adapted to the first magnets, respectively adapted to the two positioning pins.

3. The PIN soldering fixture according to claim 1, characterized in that: One end of the PCB fixing groove is provided with a foolproof pin, and one side of the PCB board assembly is provided with a foolproof groove.

4. The PIN soldering fixture according to claim 1, characterized in that: The first mounting groove is provided with a limiting pin and two third magnets located on both sides of the limiting pin at one end of the PCB fixing groove away from the second positioning block. The cover plate is provided with limiting holes adapted to the limiting pin and two fourth magnets adapted to the two third magnets.

5. The PIN soldering fixture according to claim 1, characterized in that: The rear end of the first positioning block body is also provided with two threaded holes that communicate with the PCB fixing groove, and a clamping screw is provided in each of the two threaded holes.

6. The PIN soldering fixture according to claim 1, characterized in that: The front end of the cover plate is provided with a welding clearance groove on side A, and the front end of the fixing groove is provided with a welding clearance groove on side B.

7. The PIN soldering fixture according to claim 1, characterized in that: The PIN pin fixing block is fixed in the second mounting groove by bolts.

8. The PIN soldering fixture according to claim 1, characterized in that: There are multiple PIN pin fixing blocks, and the position and number of PIN pin fixing holes on each PIN pin fixing block are different.

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