Welding jig

Abstract

The utility model relates to a welding jig, and relates to the technical field of LED display screens, the welding jig comprises a base and a turning cover rotationally arranged on the base, and a fixing assembly used for fixing the turning cover to the base is arranged between the base and the turning cover; the base is provided with a through groove used for containing and limiting the two PCBs, the depth of the through groove is consistent with the thickness of the PCBs, and the two PCBs are sequentially connected and arranged in the through groove. The bottom of the through groove is provided with a positioning groove used for placing and limiting a connector, the positioning groove is located below the joint of the two PCBs, the depth of the positioning groove is consistent with the thickness of the socket, and the bottom of the positioning groove is further provided with a receding hole used for receding a pin. When the connector is installed in the PCB, the connecting position of the PCB and the connector is smooth, and the effect of facilitating subsequent tin soldering operation is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of LED display screens, and in particular to a welding jig. Background Art

[0002] When LED display screens are produced, PCB circuit boards play a vital role in the LED display screens. They are used to support and connect the key electronic components in the display screen. Considering issues such as design flexibility, production efficiency, maintenance convenience, and system reliability, it is usually necessary to use a connector to connect two PCB circuit boards. The connector includes a socket and a plurality of pins fixed to the socket, and the plurality of pins are distributed on two opposite side walls of the socket.

[0003] In the related art, when a connector is used to connect two PCB circuit boards, the connector is first placed directly on a soldering workbench, and then the two PCB circuit boards are respectively installed at both ends of the connector. When the PCB circuit board is installed in the connector, the PCB holes on the PCB circuit board are inserted with pins, so that soldering operations can be performed in each PCB hole later.

[0004] However, when one end of the PCB circuit board in the related art is installed into the connector, since the other end of the PCB circuit board is placed on the welding workbench, it is easy to cause the connection between the PCB circuit board and the connector to be lifted, which is not convenient for subsequent soldering operations. Utility Model Content

[0005] In order to improve the phenomenon in the related art that when one end of a PCB circuit board is installed into a connector, the other end of the PCB circuit board is placed on a welding workbench, which easily causes the connection between the PCB circuit board and the connector to warp, making subsequent soldering operations inconvenient, the present application provides a welding jig.

[0006] The welding fixture provided in this application adopts the following technical solution:

[0007] A welding jig comprises a base and a flip cover rotatably arranged on the base, wherein a fixing component for fixing the flip cover to the base is arranged between the base and the flip cover;

[0008] The base is provided with a through slot for placing and limiting two PCB circuit boards, the depth of the through slot is consistent with the thickness of the PCB circuit boards, and the two PCB circuit boards are connected in sequence and placed in the through slot;

[0009] A positioning groove for placing and limiting the connector is provided at the bottom of the through groove. The positioning groove is located below the connection between the two PCB circuit boards. The depth of the positioning groove is consistent with the thickness of the socket. A making way hole for making way for the pin is also provided at the bottom of the positioning groove.

[0010] By adopting the above technical solution, when using the welding fixture of the present application, the connector is first placed into the positioning groove, at which time the positioning groove limits the connector. Since the depth of the positioning groove is consistent with the thickness of the socket, when the connector is placed into the positioning groove, the top surface of the socket is flush with the bottom of the positioning groove.

[0011] After the connector is assembled, the two PCBs are connected in sequence and placed in the through slot. When the two PCBs are placed in the through slot, the pins are inserted into the PCB holes on the PCBs. Since the depth of the through slot is consistent with the thickness of the PCBs, when the PCBs are placed in the through slot, the top surface of the PCBs is flush with the top surface of the base.

[0012] After the PCB circuit board is assembled, the flip cover is rotated until the flip cover is closed on the base. At this time, the fixing assembly fixes the flip cover on the base. As can be seen from the above, the connector is stably located on the base through the setting of the positioning groove. At the same time, the connection between the PCB circuit board and the connector is relatively flat through the setting of the through groove, which is convenient for subsequent soldering operations.

[0013] Furthermore, when the PCB circuit board and the connector are assembled, the fixing assembly fixes the flip cover on the base, and the flip cover fastens the PCB circuit board and the connector on the base to facilitate subsequent welding operations.

[0014] Preferably, the fixing assembly includes an iron sheet fixedly disposed on the base and a magnetic sheet fixedly disposed on the flip cover, and the magnetic sheet is magnetically matched with the iron sheet.

[0015] By adopting the above technical solution, the flip cover is fixed on the base by utilizing the magnetic attraction of the magnetic sheet and the iron sheet.

[0016] Preferably, the base is provided with a first snap-fitting groove, and the iron sheet is snap-fitted with the first snap-fitting groove.

[0017] By adopting the above technical solution, the iron sheet is fixed on the base by utilizing the clamping cooperation between the iron sheet and the first clamping groove.

[0018] Preferably, the flip cover is provided with a second snap-fitting groove, and the magnetic sheet is snap-fitted with the second snap-fitting groove.

[0019] By adopting the above technical solution, the magnetic sheet is fixed on the flip cover by utilizing the snap-fitting cooperation between the magnetic sheet and the second snap-fitting groove.

[0020] Preferably, the number of the fixing components is multiple, and the multiple groups of the fixing components are spaced apart along the length direction of the base.

[0021] By adopting the above technical solution, multiple groups of fixing components can make the flip cover more firmly fixed on the base.

[0022] Preferably, the flip cover includes a plurality of connecting rods and a fixing rod fixedly connected to the plurality of connecting rods, the connecting rods are rotatably connected to the base, and the plurality of connecting rods cooperate to form a welding area that is convenient for soldering operations to PCB holes.

[0023] By adopting the above technical solution, the arrangement of multiple connecting rods can make the flip cover more stable when fixing the PCB circuit board and the connector on the base. In addition, the arrangement of the welding area facilitates soldering operations to the PCB holes.

[0024] Preferably, the connecting rod is provided with a hollow hole.

[0025] By adopting the above technical solution, the setting of the hollow hole reduces the weight of the connecting rod, thereby making it less likely for the connecting rod to cause damage to the PCB circuit board.

[0026] Preferably, the base and the flip cover are both made of bakelite.

[0027] By adopting the above technical solution, the bakelite board has the characteristics of insulation, no static electricity, wear resistance and high temperature resistance, so that the base and the flip cover are durable.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The connector in the present application is stably located on the base by means of the positioning groove. At the same time, the PCB circuit board is provided with a through groove so that the connection between the PCB circuit board and the connector is relatively flat, which is convenient for subsequent soldering operations;

[0030] 2. The flip cover and the base in the present application are fixed by magnetic attraction, so that the flip cover is more stable when the PCB circuit board and the connector are fixed on the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of this application;

[0032] Figure 2 This is a schematic diagram used in this application to reflect the matching relationship between the base, the through slot and the positioning slot;

[0033] Figure 3 This is a schematic diagram used in this application to reflect the matching relationship between the base, the through slot, the positioning slot and the clearance hole.

[0034] Explanation of the reference numerals: 1. base; 2. flip cover; 21. connecting rod; 22. fixing rod; 3. PCB circuit board; 4. through slot; 5. connector; 51. socket; 52. pin; 6. positioning slot; 7. clearance hole; 8. starting slot; 9. welding area; 10. hollow hole; 11. iron sheet; 12. magnetic sheet; 13. first snap-in slot; 14. second snap-in slot. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 This application is described in further detail.

[0036] A welding jig, referring to Figure 1 , comprising a base 1 and a flip cover 2 rotatably connected to the base 1, the flip cover 2 can be rotated to cover the base 1. In this embodiment, the base 1 is arranged in a rectangular parallelepiped shape.

[0037] Reference Figure 2 The base 1 is provided with a through slot 4 for placing and limiting two PCB circuit boards 3, and the through slot 4 is provided along the length direction of the base 1. The depth of the through slot 4 is consistent with the thickness of the PCB circuit board 3, the sum of the lengths of the two PCB circuit boards 3 is consistent with the length of the through slot 4, and the width of the through slot 4 is consistent with the width of the PCB circuit board 3. The two PCB circuit boards 3 are connected in sequence and placed in the through slot 4.

[0038] Reference Figure 3 The bottom of the through slot 4 is provided with a positioning slot 6 for placing and limiting the connector 5. The positioning slot 6 is provided along the length direction of the through slot 4 and is located below the connection between the two PCB circuit boards 3. The depth of the positioning slot 6 is consistent with the thickness of the socket 51, the length of the positioning slot 6 is consistent with the length of the socket 51, and the width of the positioning slot 6 is consistent with the width of the socket 51. The socket 51 is placed in the positioning slot 6. In addition, in order to accommodate the socket 51 in the positioning slot 6, the bottom of the positioning slot 6 is provided with a clearance hole 7 for making way for the pin 52.

[0039] Reference Figure 2 In this embodiment, there are two through slots 4, which are arranged at intervals along the width direction of the base 1. Moreover, the structures for placing the connectors 5 in the two through slots 4 are consistent, which will not be described in detail here.

[0040] Reference Figure 2 The base 1 is provided with a lifting groove 8 which passes through the two through grooves 4. After the welding is completed, the operator can put his hand into the lifting groove 8 to lift the PCB circuit board 3 and take out the PCB circuit board 3.

[0041] Reference Figure 2Specifically, the flip cover 2 includes a plurality of connecting rods 21 and a fixed rod 22 fixedly connected to the plurality of connecting rods 21, and the connecting rod 21 is rotatably connected to the base 1. In this embodiment, the number of connecting rods 21 is set to six, and the six connecting rods 21 are all rotatably connected to the base 1 through hinges. The six connecting rods 21 are grouped in pairs, and are divided into three groups in total. The three groups of connecting rods 21 are evenly distributed along the length direction of the fixed rod 22. Among them, the two connecting rods 21 located in the middle of the fixed rod 22 cooperate to form a welding area 9 that is convenient for soldering to the PCB hole position. When the flip cover 2 is closed on the base 1, the welding area 9 is located at the connection position of the two PCB circuit boards 3.

[0042] Reference Figure 2 In addition, the connecting rod 21 is provided with a hollow hole 10. Moreover, in this embodiment, the base 1 and the flip cover 2 are both made of bakelite.

[0043] Reference Figure 2 A fixing assembly for fixing the flip cover 2 on the base 1 is provided between the base 1 and the flip cover 2, so that the PCB circuit board 3 and the connector 5 are stably assembled on the base 1. Specifically, the fixing assembly includes an iron sheet 11 fixedly connected to the base 1 and a magnetic sheet 12 fixedly connected to the flip cover 2, and the iron sheet 11 and the magnetic sheet 12 are magnetically matched.

[0044] Reference Figure 2 The base 1 is provided with a first snap-fitting groove 13, and the iron sheet 11 is snap-fitted with the first snap-fitting groove 13. The flip cover 2 is provided with a second snap-fitting groove 14, and the magnetic sheet 12 is snap-fitted with the second snap-fitting groove 14.

[0045] Reference Figure 2 There are multiple groups of fixing components, and the multiple groups of fixing components are arranged at intervals along the length direction of the base 1. In this embodiment, there are six groups of fixing components, and the magnetic sheets 12 in the six groups of fixing components are distributed on the six connecting rods 21 respectively.

[0046] The implementation principle of the present application is as follows: when using the welding fixture of the present application, the connector 5 is first placed into the positioning groove 6, at which time the positioning groove 6 limits the connector 5. Since the depth of the positioning groove 6 is consistent with the thickness of the socket 51, when the connector 5 is placed into the positioning groove 6, the top surface of the socket 51 is flush with the bottom of the positioning groove 6.

[0047] After the connector 5 is assembled, the two PCB circuit boards 3 are connected in sequence and placed in the through slot 4. During the process of placing the two PCB circuit boards 3 in the through slot 4, the pins 52 are inserted into the PCB holes on the PCB circuit boards 3. Since the depth of the through slot 4 is consistent with the thickness of the PCB circuit boards 3, when the PCB circuit boards 3 are placed in the through slot 4, the top surface of the PCB circuit boards 3 is flush with the top surface of the base 1.

[0048] After the PCB circuit board 3 is assembled, the flip cover 2 is rotated until the flip cover 2 covers the base 1. At this time, the flip cover 2 is fixed on the base 1 by the magnetic attraction of the magnetic sheet 12 and the iron sheet 11. After the flip cover 2 is fixed on the base 1, welding can be performed in the welding area 9.

[0049] As can be seen from the above, the connector 5 is stably located on the base 1 through the setting of the positioning groove 6. At the same time, the PCB circuit board 3 is provided with a through groove 4 so that the connection between the PCB circuit board 3 and the connector 5 is relatively flat, which is convenient for subsequent soldering operations.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A welding jig, characterized in that: It comprises a base (1) and a flip cover (2) rotatably arranged on the base (1), wherein a fixing component for fixing the flip cover (2) to the base (1) is arranged between the base (1) and the flip cover (2); The base (1) is provided with a through groove (4) for placing and limiting the position of two PCB circuit boards (3); the depth of the through groove (4) is consistent with the thickness of the PCB circuit boards (3); the two PCB circuit boards (3) are connected in sequence and placed in the through groove (4); The bottom of the through groove (4) is provided with a positioning groove (6) for placing and limiting the connector (5); the positioning groove (6) is located below the connection between the two PCB circuit boards (3); the depth of the positioning groove (6) is consistent with the thickness of the socket (51); and the bottom of the positioning groove (6) is also provided with a clearance hole (7) for making way for the pin (52).

2. A welding jig according to claim 1, characterized in that: The fixing assembly comprises an iron sheet (11) fixedly arranged on the base (1) and a magnetic sheet (12) fixedly arranged on the flip cover (2); the magnetic sheet (12) and the iron sheet (11) are magnetically matched.

3. A welding jig according to claim 2, characterized in that: The base (1) is provided with a first clamping groove (13), and the iron sheet (11) is clamped and matched with the first clamping groove (13).

4. A welding jig according to claim 2, characterized in that: The flip cover (2) is provided with a second snap-fitting groove (14), and the magnetic sheet (12) is snap-fitted with the second snap-fitting groove (14).

5. A welding jig according to claim 1, characterized in that: The number of the fixing components is arranged in multiple groups, and the multiple groups of the fixing components are arranged at intervals along the length direction of the base (1).

6. A welding jig according to claim 1, characterized in that: The flip cover (2) comprises a plurality of connecting rods (21) and a fixed rod (22) fixedly connected to the plurality of connecting rods (21); the connecting rods (21) are rotatably connected to the base (1); the plurality of connecting rods (21) cooperate to form a welding area (9) for facilitating soldering operations to holes in a PCB.

7. A welding jig according to claim 6, characterized in that: The connecting rod (21) is provided with a hollow hole (10).

8. A welding jig according to claim 1, characterized in that: The base (1) and the flip cover (2) are both made of bakelite.

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