Short circuit prevention welding jig for automobile lamp connector

Abstract

The utility model relates to the technical field of automobile lamp connector welding jigs, in particular to a short circuit prevention welding jig used for an automobile lamp connector, and aims to solve the problem that tin connection is prone to occurring in terminal welding of the automobile lamp connector in the prior art. A plurality of fixing grooves are formed in the bottom plate, the shape of the fixing grooves is matched with that of a PCB, meanwhile, penetrating holes penetrating through the bottom plate are formed in the positions corresponding to welding spots of the PCB, tin-proof plates are arranged at the penetrating holes, the ends of the tin-proof plates are connected with separating needles for separating the welding spots of terminals, and the separating needles separate the welding spots independently and prevent tin connection from being seen from the back face of the bottom plate. The effects of fool proofing and quality improvement are achieved, the operation difficulty is reduced, and the productivity efficiency is improved; in the specific embodiment, the anti-tin plates and the clamping grooves are fixed through screws, different terminals need to be matched with corresponding anti-tin plate-separation needles, replacement can be carried out according to needs, and adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of welding jigs for vehicle lamp connectors, in particular to an anti-short circuit welding jig for vehicle lamp connectors. Background Art

[0002] The production of automotive light connectors requires soldering the terminals to the corresponding PCB board. Usually, operators use templates to fix the PCB board and the terminal components during operation. Existing templates are equipped with anti-tin plates, but since multiple solder points of the terminals are arranged side by side and the distance is very close, spot welding can easily cause the terminals to be tinned, which poses many quality risks. Utility Model Content

[0003] Based on the above description, the utility model provides an anti-short circuit welding fixture for an automobile headlight connector to solve the problem of bridging easily occurring during terminal welding of the headlight connector in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A short-circuit prevention welding fixture for automobile lamp connector, comprising:

[0006] Base plate;

[0007] A fixing groove is provided on the bottom plate and is used for clamping and fixing the PCB board;

[0008] A perforation is provided through the bottom plate;

[0009] A tin-proof plate, arranged at the perforation, to which a separation pin for separating the terminal solder joints is connected;

[0010] The buckle assembly fixes the PCB board in the fixing groove.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, a clamping groove is provided on the side of the perforation, and the tin-proof plate is embedded in the clamping groove.

[0013] Furthermore, the buckle assembly includes a first buckle for pressing the PCB board and a second buckle for pressing the terminal. The fixing grooves are provided with multiple groups, the second buckles are provided between adjacent fixing grooves, and the first buckles are provided on the sides of the fixing grooves.

[0014] Furthermore, the first pressing buckle includes a first rotating post rotatably connected to the bottom plate, and a first cover plate for pressing the PCB board is sleeved on the first rotating post.

[0015] Furthermore, the second pressing buckle includes a second rotating post rotatably connected to the bottom plate, a second cover plate for pressing the terminal is sleeved on the second rotating post, and a shifting block is sleeved on the top of the second rotating post.

[0016] Furthermore, the second cover plate is an elastic member.

[0017] Furthermore, both ends of the second cover plate are respectively connected with extension plates, and the height of the extension plates is greater than that of the second cover plate.

[0018] Furthermore, the second rotating column is a threaded column, a spring is sleeved on the second rotating column, and two ends of the spring abut against the bottom plate and the second cover plate respectively.

[0019] Furthermore, the tin-proof plate and the clamping slot are fixed with screws.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0021] The present solution is improved by providing a tin-proof plate near the soldering point. The tin-proof plate is provided at the perforation, and its end is connected with a separation pin for separating the terminal soldering points. When viewed from the back of the bottom plate, the separation pins separate the soldering points independently to prevent tin connection, thereby preventing mistakes and improving quality, reducing the difficulty of operation, and increasing production efficiency. In a specific embodiment, the tin-proof plate is fixed to the snap-in slot with screws, and different terminals require corresponding tin-proof plate-separation pin matching, which can be replaced as needed and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of an anti-short circuit welding fixture for a car light connector provided by an embodiment of the utility model;

[0023] Figure 2 for Figure 1 A partial enlarged schematic diagram of the area at A in the middle;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Bottom plate; 2. Fixing groove; 3. Perforation; 4. Tin-proof plate; 5. Separation needle; 6. First buckle; 7. Snap-in groove; 8. Second cover plate; 9. Shift block; 10. Extension plate; 11. Spring. DETAILED DESCRIPTION

[0026] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0028] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0029] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0030] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0031] like Figure 1 , Figure 2 The illustrated short-circuit proof welding fixture for automobile lamp connectors includes a bottom plate 1, on which a plurality of fixing grooves 2 are provided, the shape of which matches that of a PCB board, and through holes 3 penetrating the bottom plate 1 are provided at positions corresponding to the soldering points of the PCB board. When the PCB board is fixed in the fixing grooves 2, the terminals are butted at the positions of the soldering points, and when viewed from the back of the bottom plate 1, the soldering points leak out from the through holes 3, which facilitates subsequent soldering work, and correspondingly, a corresponding top plate is matched above the bottom plate 1 to cover it.

[0032] A tin drag sheet is provided at the existing soldering point to capture excess solder during the welding process to avoid contaminating the working environment and welding circuit. However, since the wiring soldering points of the terminals are arranged side by side at a close distance, the problem of tin bridging is prone to occur. This solution is improved by providing a tin-proof plate 4 near the soldering point. The tin-proof plate 4 is provided at the perforation 3, and its end is connected to a separation pin 5 that separates the terminal soldering points. When viewed from the back of the bottom plate 1, the separation pin 5 separates the soldering points independently to prevent tin bridging, thereby preventing fooling and improving quality. Preferably, a snap-in groove 7 is provided on the side of the perforation 3, and the tin-proof plate 4 is embedded in the snap-in groove 7 to improve the fixing effect. The tin-proof plate 4 is fixed to the snap-in groove 7 with screws. Different terminals require corresponding tin-proof plates 4-separation pins 5 to match, which can be replaced as needed. The material of the tin-proof plate 4 and the separation pin 5 is the same, which is a non-tin-sticking alloy material and is made by laser cutting.

[0033] In order to fix the PCB board and the terminal, a buckle assembly is provided on the bottom plate 1, and the buckle assembly includes a first buckle 6 for pressing the PCB board and a second buckle for pressing the terminal. In order to improve the welding efficiency, multiple groups of fixing grooves 2 are provided on the bottom plate 1. At the same time, in order to improve the operation efficiency of the operator, two symmetrical units are provided. After the operator becomes proficient, he can operate the buckles on both sides at the same time, thereby reducing the fixing time of the PCB board and the terminal. The fixing groove 2 of the PCB board is designed as a layout with solder joints close to each other. A second buckle can be used to fix the terminals on the left and right sides at the same time. The second buckle is provided between adjacent fixing grooves 2, and the first buckle 6 is provided on the side of the fixing groove 2.

[0034] The first buckle 6 includes a first rotary post rotatably connected to the base plate 1, and a first cover plate for pressing the PCB board is sleeved on the first rotary post. When the PCB board is embedded in the fixing groove 2, the operator rotates the first rotary post to cover and press it on the PCB board. The second buckle includes a second rotary post rotatably connected to the base plate 1, and a second cover plate 8 for pressing the terminal is sleeved on the second rotary post. A shift block 9 is sleeved on the top of the second rotary post. The user drives the second cover plate 8 to rotate by rotating the shift block 9, so that the two ends of the second cover plate 8 respectively cover the top surface of the pressing terminal. Preferably, the second cover plate 8 is an elastic member, and the elastic plate member improves adaptability and is also convenient for covering and pressing the terminal. In one embodiment, the two ends of the second cover plate 8 are respectively connected to an extension plate 10, and the height of the extension plate 10 is greater than the second cover plate 8, that is, the extension plate 10 is tilted relative to the second cover plate 8, and the operator can lift the extension plate 10 to raise the second cover plate 8, so that it is more convenient to move it above the terminal. In order to further improve the adaptability of the second cover plate 8 to the terminal height, the second rotary column is a threaded column, and a spring 11 is sleeved on the second rotary column. The two ends of the spring 11 respectively abut against the base plate 1 and the second cover plate 8. The second rotary column can be rotated multiple times to change the height of the second cover plate 8 from the base plate 1 to adapt to terminal housings of different sizes. The stroke of the second cover plate 8 rotating away from the terminal and covering the terminal is short, and the height change of the threaded column is very small, which does not affect the pressing effect on the terminal housing.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A short-circuit prevention welding fixture for automobile lamp connector, characterized in that: include: Base plate; A fixing groove is provided on the bottom plate and is used for clamping and fixing the PCB board; A perforation is provided through the bottom plate; A tin-proof plate, arranged at the perforation, to which a separation pin for separating the terminal solder joints is connected; The buckle assembly fixes the PCB board in the fixing groove.

2. The anti-short circuit welding fixture for automobile lamp connector according to claim 1, characterized in that: A clamping groove is provided on the side of the through hole, and the tin-proof plate is embedded in the clamping groove.

3. The anti-short circuit welding fixture for automobile lamp connector according to claim 1, characterized in that: The buckle assembly includes a first buckle for pressing the PCB board and a second buckle for pressing the terminal. The fixing grooves are provided with multiple groups. The second buckles are provided between adjacent fixing grooves, and the first buckles are provided on the sides of the fixing grooves.

4. The anti-short circuit welding fixture for automobile lamp connector according to claim 3, characterized in that: The first pressing buckle includes a first rotating post rotatably connected to the bottom plate, and a first cover plate for pressing the PCB board is sleeved on the first rotating post.

5. The anti-short circuit welding fixture for automobile lamp connector according to claim 3, characterized in that: The second pressing buckle comprises a second rotating post rotatably connected to the bottom plate, a second cover plate for pressing the terminal is sleeved on the second rotating post, and a shifting block is sleeved on the top of the second rotating post.

6. The anti-short circuit welding fixture for automobile lamp connector according to claim 5, characterized in that: The second cover plate is an elastic member.

7. The anti-short circuit welding fixture for automobile lamp connector according to claim 5, characterized in that: Both ends of the second cover plate are respectively connected with extension plates, and the height of the extension plates is greater than that of the second cover plate.

8. The anti-short circuit welding fixture for automobile lamp connector according to claim 5, characterized in that: The second rotating column is a threaded column, a spring is sleeved on the second rotating column, and two ends of the spring abut against the bottom plate and the second cover plate respectively.

9. The anti-short circuit welding fixture for automobile lamp connector according to claim 2, characterized in that: The tin-proof plate and the clamping slot are fixed with screws.

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