CN214867860U

CN214867860U - Welding jig

Info

Publication number: CN214867860U
Application number: CN202120283701.6U
Authority: CN
Inventors: 曾松标
Original assignee: SHENZHEN RUIBIDA TECHNOLOGY CO LTD
Current assignee: SHENZHEN RUIBIDA TECHNOLOGY CO LTD
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-11-26
Anticipated expiration: 2031-02-01

Abstract

The application discloses a welding jig, which comprises a frame body, a placing table arranged on the inner wall of the frame body, a shielding piece detachably connected with the placing table, and an elastic pressing arm rotatably arranged on the frame body; the shielding piece comprises a connecting part connected with the placing table and a shielding part connected with the connecting part; the shielding part extends out of the placing table and is provided with a plurality of shielding branches. When welding components and parts on the circuit board, the edge of the circuit board is placed on the placing table, and the circuit board is pressed on the placing table by the elastic pressing arm. At this time, the shielding member is pressed between the circuit board and the placing table, and the shielding portion extends out of the edge of the placing table and abuts against the position of the circuit board with white oil. The shielding part covers a circuit formed by white oil on the circuit board through the shielding support rod, hot air flow of reflow soldering is not easy to contact with the white oil, and the white oil is not easy to damage.

Description

Welding jig

Technical Field

The application relates to circuit board welding field especially relates to a welding jig.

Background

When soldering a component on a circuit board, the component and the circuit board are fixed and electrically connected by means of reflow soldering, for example. White oil is arranged at some positions at the bottom of the circuit board, and the white oil is easily damaged when airflow of high-temperature reflow soldering directly contacts with the white oil. Therefore, when the components are soldered to the circuit board, the circuit board is easily damaged.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a welding jig, aim at solving prior art, when adopting modes such as reflow soldering to weld components and parts on the circuit board, lead to the problem that the white oil on the circuit board damaged easily.

To achieve the purpose, the embodiment of the application adopts the following technical scheme:

the welding jig comprises a frame body, a placing table arranged on the inner wall of the frame body, a shielding piece detachably connected with the placing table, and an elastic pressing arm rotatably arranged on the frame body; the shielding piece comprises a connecting part connected with the placing table and a shielding part connected with the connecting part; the shielding part extends out of the placing table and is provided with a plurality of shielding branches.

In one embodiment, the placing table is provided with a positioning groove for placing the circuit board.

In one embodiment, the placing table is provided with a taking and placing abdicating groove.

In one embodiment, the frame comprises a first side panel, a second side panel connected to and disposed from the first side panel, a third side panel connected to an end of the second side panel remote from the first side panel, and a fourth side panel connected between the first side panel and the third side panel; the fourth side plate is parallel to the second side plate, and the third side plate is parallel to the first side plate.

In one embodiment, the elastic pressing arm is rotatably mounted on each of the second side plate and the fourth side plate.

In one embodiment, the elastic pressing arm comprises a first arc-shaped plate rotatably mounted on the frame body, a second arc-shaped plate connected with the first arc-shaped plate, and a third arc-shaped plate connected with one end, far away from the first arc-shaped plate, of the second arc-shaped plate.

In one embodiment, the resilient pressure arm further comprises a fourth arcuate plate connected to the third arcuate plate; the fourth arc-shaped plate inclines towards the direction close to the second arc-shaped plate relative to the third arc-shaped plate.

In one embodiment, the welding jig further comprises a flattening piece rotatably mounted on the placing table.

In one embodiment, the placing table is provided with a screw, and the flattening piece is rotatably mounted on the screw.

In one embodiment, a spring is sleeved on the screw and abuts against the flattening piece.

The beneficial effects of the embodiment of the application are as follows: when welding components and parts on the circuit board, the edge of the circuit board is placed on the placing table, and the circuit board is pressed on the placing table by the elastic pressing arm. At this time, the shielding member is pressed between the circuit board and the placing table, and the shielding portion extends out of the edge of the placing table and abuts against the position of the circuit board with white oil. The shielding part covers a circuit formed by white oil on the circuit board through the shielding support rod, hot air flow of reflow soldering is not easy to contact with the white oil, and the white oil is not easy to damage.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a welding jig in an embodiment of the present application;

FIG. 2 is an exploded view of a welding fixture according to an embodiment of the present disclosure;

FIG. 3 is a partial view of the welding jig of FIG. 1;

in the figure:

1. a frame body; 101. a first side plate; 102. a second side plate; 103. a third side plate; 104. a fourth side plate; 2. a placing table; 201. positioning a groove; 202. taking and placing the abdicating groove; 3. a shield; 301. a connecting portion; 302. a shielding portion; 3021. shielding the branch; 4. an elastic pressing arm; 401. a first arc-shaped plate; 402. a second arc-shaped plate; 403. a third arc-shaped plate; 404. a fourth arc-shaped plate; 5. flattening the workpiece; 6. a screw; 7. a spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The following detailed description of implementations of the present application is provided in conjunction with specific embodiments.

As shown in fig. 1 to fig. 3, the embodiment of the present application provides a welding jig, which includes a frame 1, a placing table 2 disposed on an inner wall of the frame 1, a shielding member 3 detachably connected to the placing table 2, and an elastic pressing arm 4 rotatably mounted on the frame 1; the shield 3 includes a connection portion 301 connected to the placement table 2, and a shield portion 302 connected to the connection portion 301; the shade 302 has a number of shade branches 3021.

In the embodiment of the application, when welding components and parts on the circuit board, place the edge of circuit board on placing platform 2, utilize elasticity to press and hold arm 4 and compress tightly the circuit board on placing platform 2. At this time, the shield member 3 is pressed between the circuit board and the mounting table 2, and the shielding portion 302 is extended from the edge of the mounting table 2 and abuts against the position of the circuit board where the white oil is present. The shielding portion 302 covers the circuit formed by the white oil on the circuit board through the shielding support rod, so that hot air flow of reflow soldering is not easy to contact with the white oil, and the white oil is not easy to damage.

Because the shielding piece 3 can be detachably (inserted or embedded) arranged on the placing table 2, different shielding pieces 3 can be replaced quickly. For circuit boards with different white oil lines, different shielding pieces 3 can be replaced, and the universality of the shielding pieces 3 is improved.

Referring to fig. 1-2, as another embodiment of the welding jig provided in the present application, a positioning groove 201 for placing the circuit board is formed on the placing table 2, the circuit board is positioned in the positioning groove 201, and the position of each time is fixed and not easy to slide, so that the shielding support rod of the shielding portion 302 of the shielding member 3 can stably cover the white oil of the circuit board.

Referring to fig. 1-2, as another embodiment of the welding jig provided in the present application, a placing and taking abdicating slot 202 is formed on the placing table 2 for placing the circuit board. When placing platform 2 and having seted up constant head tank 201, get and put groove 202 of stepping down and can be linked together with constant head tank 201, be convenient for the circuit board and place on placing platform 2, be convenient for simultaneously take off the circuit board from placing platform 2.

Referring to fig. 1-2, as another embodiment of the welding jig provided in the present application, the frame 1 includes a first side plate 101, a second side plate 102 connected to the first side plate 101 and disposed mutually, a third side plate 103 connected to an end of the second side plate 102 away from the first side plate 101, and a fourth side plate 104 connected between the first side plate 101 and the third side plate 103; the fourth side plate 104 and the second side plate 102 are parallel to each other, and the third side plate 103 and the first side plate 101 are parallel to each other. The first side plate 101, the second side plate 102, the third side plate 103 and the fourth side plate 104 enclose to form a rectangle, and the limiting effect on the circuit board can also be realized. Alternatively, the first side plate 101, the second side plate 102, the third side plate 103, and the fourth side plate 104 may be disposed on a bottom plate, and the bottom plate partially extends into the inner ring of the frame 1, thereby forming the placing table 2.

Referring to fig. 1-2, as another embodiment of the welding jig provided by the present application, the elastic pressing arms 4 are rotatably mounted on the second side plate 102 and the fourth side plate 104, and the elastic pressing arms 4 on the second side plate 102 and the fourth side plate 104 can press the circuit board onto the placing table 2 at two opposite ends, so that the circuit board is stably pressed.

Referring to fig. 3, as another embodiment of the welding jig provided in the present application, the elastic pressing arm 4 includes a first arc plate 401 rotatably mounted on the frame 1, a second arc plate 402 connected to the first arc plate 401, and a third arc plate 403 connected to an end of the second arc plate 402 far from the first arc plate 401. The third arc plate 403 is directly pressed on the surface of the circuit board, so as to press the circuit board tightly. The first arc-shaped plate 401, the second arc-shaped plate 402 and the third arc-shaped plate 403 all have certain deformation capacity, can apply certain pressure to the circuit board, and adapt to the circuit boards with different thicknesses through deformation.

Referring to fig. 3, as another embodiment of the welding jig provided in the present application, the elastic pressing arm 4 further includes a fourth arc plate 404 connected to the third arc plate 403; the fourth arc-shaped plate 404 is inclined towards the direction close to the second arc-shaped plate 402 relative to the third arc-shaped plate 403, so that the elastic pressing and holding arm 4 can be conveniently applied by a hand, the elastic pressing and holding arm 4 can be easily pulled up through the fourth arc-shaped plate 404, and the pressing and holding state of the circuit board by the elastic pressing and holding arm 4 is contacted.

Referring to fig. 3, as another embodiment of the welding jig provided in the present application, the welding jig further includes a pressing member 5 rotatably mounted on the placing table 2. The elastic pressing and holding arm 4 can be selectively pressed and held on larger devices on the circuit board, such as terminals; the edge of holding the circuit board can be pressed to flattening piece 5, and with the surperficial direct contact of circuit board, can make stable the placing on platform 2 of circuit board for the circuit board is difficult for becoming flexible.

Referring to fig. 3, as another embodiment of the welding jig provided in the present application, a screw 6 is disposed on the placing table 2, the pressing member 5 is rotatably mounted on the screw 6, and the screw 6 can be rapidly disassembled and assembled, so as to mount different pressing members 5.

Referring to fig. 3, as another embodiment of the welding fixture provided in the present application, a spring 7 is sleeved on the screw 6, the spring 7 abuts against the pressing member 5, and the spring 7 can apply a force to the pressing member 5, so that the pressing member 5 applies a pressure to the circuit board to press and fix the circuit board, and the circuit board is not easily loosened.

It is to be understood that aspects of the present invention may be practiced otherwise than as specifically described.

It should be understood that the above examples are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. The welding jig is characterized by comprising a frame body, a placing table arranged on the inner wall of the frame body, a shielding piece detachably connected with the placing table, and an elastic pressing arm rotatably arranged on the frame body; the shielding piece comprises a connecting part connected with the placing table and a shielding part connected with the connecting part; the shielding part extends out of the placing table and is provided with a plurality of shielding branches.

2. The welding jig of claim 1, wherein the placing table is provided with a positioning groove for placing a circuit board.

3. The welding jig of claim 1, wherein the placing table is provided with a pick-and-place abdicating groove.

4. The welding jig of claim 1, wherein the frame comprises a first side plate, a second side plate connected to the first side plate and disposed with respect to each other, a third side plate connected to an end of the second side plate remote from the first side plate, and a fourth side plate connected between the first side plate and the third side plate; the fourth side plate is parallel to the second side plate, and the third side plate is parallel to the first side plate.

5. The welding jig of claim 4, wherein the elastic pressing arm is rotatably mounted on each of the second side plate and the fourth side plate.

6. The welding jig of claim 1, wherein the elastic pressing arm comprises a first arc-shaped plate rotatably mounted on the frame, a second arc-shaped plate connected with the first arc-shaped plate, and a third arc-shaped plate connected with one end of the second arc-shaped plate far away from the first arc-shaped plate.

7. The welding jig of claim 6, wherein the resilient pressure arm further comprises a fourth arcuate plate connected to the third arcuate plate; the fourth arc-shaped plate inclines towards the direction close to the second arc-shaped plate relative to the third arc-shaped plate.

8. The welding jig of claim 1, further comprising a flattening member rotatably mounted to the placing table.

9. The welding jig of claim 8, wherein the placing table is provided with a screw, and the flattening member is rotatably mounted on the screw.

10. The welding jig of claim 9, wherein a spring is sleeved on the screw and abuts against the flattening piece.