Welding positioning tool and welding equipment

Abstract

The utility model relates to the field of positioning devices, in particular to a welding positioning tool and welding equipment. The welding positioning tool is used for positioning a to-be-welded circuit board and a to-be-welded connector. The welding positioning tool comprises a tool base. A positioning groove is formed in the tool base so as to position the circuit board and the connector; the tool base is provided with a first avoiding cavity, and the first avoiding cavity is opposite to the protruding part of the connector so as to contain the protruding part. According to the welding positioning tool, the connector and the circuit board can be positioned, when the connector is welded to the circuit board, the connector and the circuit board can be placed stably, the relative positions of the connector and the circuit board are fixed, the stability during welding can be greatly improved, and therefore the welding yield and the success rate during repairing are improved.

Description

Technical Field

[0001] This application relates to the field of positioning devices, and in particular to a welding positioning fixture and welding equipment. Background Technology

[0002] PCMCIA (Personal Computer Memory Card International Association) devices, also known as PC card devices, are a common standard interface device used to connect computers and peripherals. Originally designed by Poquet to increase storage space in its notebook computers, it has evolved into an independent, universal hardware standard widely used in laptops, set-top boxes, digital televisions, and other devices.

[0003] The PCMCIA connector has a raised edge on each of the two outer edges of its plastic structure. Its function is to transmit force with the structure when the connector is plugged in or out. However, this irregular shape can cause the pins of the PCMCIA connector to not be able to lie flat during soldering, resulting in soldering deformation and affecting installation and use. Utility Model Content

[0004] The purpose of this application is to provide a welding positioning fixture and welding equipment that can position the circuit board and connector to be welded, and enable the connector to be placed flat on the surface of the circuit board, so as to ensure reliable welding of the two.

[0005] This application provides a welding positioning fixture for positioning circuit boards and connectors to be welded, the welding positioning fixture including a fixture base;

[0006] The tooling base has a positioning groove to position the circuit board and the connector;

[0007] The tooling base has a first clearance cavity, which is opposite to the protrusion of the connector to accommodate the protrusion.

[0008] In the above technical solution, a first support portion is further provided in the positioning groove;

[0009] The first support includes a plurality of support edges located at the bottom of the positioning groove, the plurality of support edges being spaced apart to support the edge of the circuit board, and a second clearance cavity being formed between the plurality of support edges to accommodate devices on the circuit board.

[0010] Furthermore, the above technical solution also includes a pressure-applying component;

[0011] The connector is mounted on the first edge of the circuit board, and on the second edge of the circuit board away from the connector, the positioning groove is provided with an opening, and the pressure-applying member is mounted at the opening and is continuously subjected to force toward the sidewall of the circuit board.

[0012] In the above technical solution, the pressure-applying component further includes a first pressure plate and a torsion spring;

[0013] The first pressure plate is rotatably mounted on the tooling base, and the first pressure plate is opposite to the side wall of the circuit board;

[0014] The torsion spring is installed between the first pressure plate and the tooling base so that the first pressure plate applies pressure to the side wall of the circuit board.

[0015] In the above technical solution, the positioning groove is further provided with two first loading and unloading notches arranged opposite to each other. The two first loading and unloading notches are located at the third edge and the fourth edge of the circuit board, respectively, so as to expose the sidewall of the circuit board at the corresponding position.

[0016] In the above technical solution, a second support portion is further provided inside the positioning groove;

[0017] The second support includes a support platform located at the bottom of the positioning groove, the support platform being opposite to the connector to support the connector, and the support platform having the first clearance cavity.

[0018] The above technical solution further includes a second pressure plate;

[0019] The second pressure plate is detachably installed in the slot of the positioning groove, and the second pressure plate is opposite to the connector to apply pressure to the connector.

[0020] In the above technical solution, the positioning groove is further provided with a second loading and unloading notch to expose the side of the connector away from the circuit board;

[0021] The second loading / unloading notch is located at a reference position to mark the center position of the connector.

[0022] In the above technical solution, a third clearance cavity is further provided on the side of the positioning groove adjacent to the connector, and the third clearance cavity is opposite to the corner of the connector on the side away from the circuit board.

[0023] The positioning groove is provided with a fourth clearance cavity on the side wall corresponding to the circuit board, and the fourth clearance cavity is opposite to the protruding device on the side of the circuit board.

[0024] This application also provides a welding device, including the welding positioning fixture described in the above solution.

[0025] Compared with the prior art, the beneficial effects of this application are as follows:

[0026] The welding positioning fixture provided in this application can position the connector and the circuit board. When the connector is welded to the circuit board, it can make the connector and the circuit board stable and fix their relative positions, which can greatly improve the stability during welding, thereby improving the welding yield and the success rate of rework.

[0027] This application also provides welding equipment, including the welding positioning fixture described in the above scheme. Based on the above analysis, it is clear that the welding equipment also possesses the aforementioned beneficial effects, which will not be elaborated upon further here. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 A first structural schematic diagram of the welding positioning fixture provided in this application;

[0030] Figure 2 This is a schematic diagram of the second structure of the welding positioning fixture provided in this application;

[0031] Figure 3 A partial structural schematic diagram of the welding positioning fixture provided in this application;

[0032] Figure 4 A schematic diagram of the tooling base provided in this application.

[0033] In the diagram: 1-Jig base; 2-Second pressure plate; 3-Circuit board; 4-First pressure plate; 5-First screw; 6-Second screw; 7-Connector; 8-First clearance cavity; 9-Supporting edge; 10-Second clearance cavity; 11-First loading / unloading notch; 12-Supporting platform; 13-Second loading / unloading notch; 14-Third clearance cavity; 15-Fourth clearance cavity; 16-Threaded hole. Detailed Implementation

[0034] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not 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, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] Example 1

[0038] See Figures 1 to 4 As shown, the welding positioning fixture provided in this application is used to position the PCB and PCMCIA connector to be welded. When the irregularly shaped PCMCIA connector is welded to the PCB, the welding positioning fixture can be used to fix the two and make them in a relatively stable and close fit, which can ensure that the PCMCIA connector and the PCB being welded are firmly attached during welding.

[0039] Specifically, the welding positioning fixture includes a fixture base 1. The fixture base 1 is the main body of the fixture and is machined entirely from aluminum alloy, so it will not be damaged by the welding torch. When welding personnel are performing manual welding or reworking PCMCIA equipment, setting up the fixture base 1 to fix the circuit board 3 and connector 7 can reduce the welding difficulty and improve the yield of manual welding.

[0040] like Figure 3 and 4As shown, the fixture base 1 has a positioning groove to position the circuit board 3 and the connector 7, ensuring that the circuit board 3 and the connector 7 do not move during soldering, thereby improving the soldering strength. To prevent the irregularly shaped connector 7 from causing its pins to not lie flat on the circuit board 3, the fixture base 1 has a first clearance cavity 8, which is opposite to the protrusion of the connector 7 to accommodate the protrusion. For example, for the PCMCIA connector shown in the figure, the bottom of the PCMCIA connector has a raised edge. Correspondingly, a clearance groove is provided at the bottom of the positioning groove. While ensuring reliable positioning of the connector 7, it allows the connector 7 and the circuit board 3 to fit flat, thereby improving the soldering quality. Of course, for connectors 7 with protrusions located in other positions, the position of the first clearance cavity 8 can be set accordingly.

[0041] The welding positioning fixture provided in this application can position the connector 7 and the circuit board 3. When the connector 7 is welded to the circuit board 3, the connector 7 and the circuit board 3 can be placed stably and their relative positions can be fixed, which can greatly improve the stability during welding, thereby improving the welding yield and the success rate of rework.

[0042] In an optional embodiment, a first support portion is provided in the positioning groove; the first support portion includes a plurality of supporting edges 9 located at the bottom of the positioning groove, the plurality of supporting edges 9 being spaced apart to support the edge of the circuit board 3, and a second clearance cavity 10 is formed between the plurality of supporting edges 9 to accommodate the devices on the circuit board 3.

[0043] In this embodiment, such as Figure 1 As shown, the words "PCMCIA-68 pin" are engraved on the edge of the positioning groove of the fixture base 1 to indicate the purpose of the fixture. For other models and specifications of connectors 7, different markings can be used. The positioning groove consists of two parts. One part is used to position the circuit board 3, and the sidewalls of this part of the positioning groove are adapted to the shape and size of the circuit board 3. A large area is hollowed out at the bottom of this part of the positioning groove, with four first support portions formed by the support edges 9 only at the four corners of the circuit board 3, thus avoiding obstruction of components on the back of the circuit board 3.

[0044] In an optional embodiment, the welding positioning fixture further includes a pressure-applying component. The connector 7 is mounted on the first edge of the circuit board 3. On the second edge of the circuit board 3 away from the connector 7, the positioning groove has an opening. The pressure-applying component is mounted at the opening and continuously applies force toward the side wall of the circuit board 3 to fix the circuit board 3 in the area enclosed by the fixture base 1 and the pressure-applying component, thereby preventing the circuit board 3 from moving.

[0045] Specifically, the pressure-applying components include a first pressure plate 4 and a torsion spring. The first pressure plate 4 is a wrench-shaped part made of stainless steel. The first pressure plate 4 is rotatably mounted on the fixture base 1 by a first screw 5, and the first pressure plate 4 is opposite to the side wall of the circuit board 3. The torsion spring is installed between the first pressure plate 4 and the fixture base 1 so that the first pressure plate 4 applies pressure to the side wall of the circuit board 3. In use, before placing the circuit board 3 into the positioning slot, the first pressure plate 4 should be pulled away from the circuit board 3. After placing the circuit board 3 into the positioning slot, the first pressure plate 4 should be released, and the circuit board 3 is fixed to the fixture base 1 by the elastic force of the torsion spring.

[0046] In an optional embodiment, the positioning groove is provided with two opposing first loading / unloading notches 11, which are located at the third and fourth edges of the circuit board 3, respectively, to expose the sidewalls of the circuit board 3 at corresponding positions. Figure 4 As shown, two first loading / unloading notches 11 are provided in the middle of the tooling base 1, allowing the user to pick up or place the circuit board 3 in the direction indicated by the arrow through the first loading / unloading notches 11. The two first loading / unloading notches 11 are located on the remaining side walls except for the positioning grooves where the connector 7 and the pressure-applying component are located, and do not affect the positioning function of the device for the connector 7 and the circuit board 3.

[0047] Example 2

[0048] The welding positioning fixture in this second embodiment is an improvement on the above embodiments. The technical content disclosed in the above embodiments will not be described again, and the content disclosed in the above embodiments also belongs to the content disclosed in this second embodiment.

[0049] See Figure 4 As shown, in an optional embodiment, a second support is provided within the positioning groove. The second support includes a support platform 12 located at the bottom of the positioning groove, which is opposite to the connector 7 to support the connector 7. The support platform 12 also has a first clearance cavity 8.

[0050] In this embodiment, another part of the positioning groove is used to position the connector 7, and the sidewall of the positioning groove in this part is adapted to the shape and size of the connector 7. In order to stably support the bottom of the connector 7, this part of the positioning groove is provided with a relatively complete support platform 12. The support platform 12 is provided with a first relief cavity 8 only at the position opposite to the protrusion to accommodate the protrusion, so that the connector 7 can be firmly attached to the circuit board 3.

[0051] In an optional embodiment, the welding positioning fixture further includes a second pressure plate 2. The second pressure plate 2 is detachably installed in the slot of the positioning groove, and the second pressure plate 2 is opposite to the connector 7 to apply pressure to the connector 7. Specifically, the second pressure plate 2 is a horizontal strip aluminum alloy sheet, with positioning holes at both ends, and threaded holes 16 are correspondingly provided on the fixture base 1. In use, the second screw 6 is passed through the positioning hole and screwed into the threaded hole 16 to press the second pressure plate 2 onto the connector 7, thereby fixing the connector 7 onto the fixture base 1.

[0052] In an optional embodiment, the positioning groove is provided with a second loading / unloading notch 13 to expose the side of the connector 7 away from the circuit board 3; the second loading / unloading notch 13 is provided at a reference position to mark the middle position of the connector 7.

[0053] In this embodiment, such as Figure 4 As shown, the second loading / unloading notch 13 is a circular hole opened in the middle of the side wall of the positioning groove. When placing the connector 7 into the positioning groove, it is necessary to adjust the position of the connector 7. The user can adjust the horizontal direction of the connector 7 through this circular hole. Moreover, since the second loading / unloading notch 13 is located in the middle of the side wall of the positioning groove, the center of the connector 7 can also be positioned when placing the connector 7, so that the assembly position of the connector 7 and the circuit board 3 is more accurate.

[0054] In an optional embodiment, a third clearance cavity 14 is provided on the side of the positioning groove adjacent to the connector 7, and the third clearance cavity 14 is opposite to the corner of the side of the connector 7 away from the circuit board 3; a fourth clearance cavity 15 is provided on the side wall of the positioning groove corresponding to the circuit board 3, and the fourth clearance cavity 15 is opposite to the protruding device on the side of the circuit board 3.

[0055] In this embodiment, such as Figure 4 As shown, the third clearance cavity 14 is a clearance groove opened in the positioning groove, opposite to the right-angled side of the connector 7, to avoid the right-angled side of the connector 7, thereby avoiding the problem of difficulty in inserting the connector 7 into the positioning groove due to processing errors. In addition, other devices are provided on the side of the circuit board 3 away from the connector 7, and the fourth clearance cavity 15 is a clearance groove opened in the positioning groove corresponding to the device, in order to avoid interference with the device.

[0056] Example 3

[0057] Embodiment 3 of this application provides a welding device, which includes the welding positioning fixture of any of the above embodiments. Therefore, it has all the beneficial technical effects of the welding positioning fixture of any of the above embodiments, and will not be repeated here.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In addition, those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are meant to be within the scope of this application and form different embodiments.

Claims

1. A welding positioning jig for positioning a circuit board and a connector to be welded, characterized by, The welding positioning tool comprises a tool base; The tool base is provided with a positioning groove for positioning the circuit board and the connector; The tool base is provided with a first avoiding cavity opposite to the protruding part of the connector for accommodating the protruding part.

2. The welding positioning fixture of claim 1, wherein, The positioning groove is provided with a first supporting part; The first supporting part comprises a plurality of supporting edges on the groove bottom of the positioning groove, the supporting edges are arranged at intervals for supporting the edges of the circuit board, and a second avoiding cavity is formed between the supporting edges for accommodating the devices on the circuit board.

3. The welding positioning fixture of claim 2, wherein, A pressing member is further included; The connector is mounted on the first edge of the circuit board, the second edge of the circuit board is away from the connector, the positioning groove is provided with an opening, and the pressing member is mounted at the opening and continuously applies force to the side wall of the circuit board.

4. The welding positioning fixture of claim 3, wherein, The pressing member comprises a first pressing plate and a torsion spring; The first pressing plate is rotationally mounted on the tool base, and the first pressing plate is opposite to the side wall of the circuit board; The torsion spring is mounted between the first pressing plate and the tool base to press the first pressing plate against the side wall of the circuit board.

5. The welding positioning fixture of claim 3, wherein, The positioning groove is provided with two first loading and unloading notches arranged opposite to each other, the two first loading and unloading notches are respectively located at the third edge and the fourth edge of the circuit board to expose the side wall of the circuit board at the corresponding positions.

6. The welding positioning fixture of claim 1, wherein, The positioning groove is provided with a second supporting part; The second supporting part comprises a supporting platform on the groove bottom of the positioning groove, the supporting platform is opposite to the connector for supporting the connector, and the supporting platform is provided with the first avoiding cavity.

7. The welding positioning fixture of claim 1, wherein, A second pressing plate is further included; The second pressing plate is detachably mounted on the notch of the positioning groove, and the second pressing plate is opposite to the connector for pressing the connector.

8. The welding positioning fixture of claim 1, wherein, The positioning groove is provided with a second loading and unloading notch for exposing the side of the connector away from the circuit board; The second loading and unloading notch is arranged at a reference position to mark the middle position of the connector.

9. The welding positioning fixture of claim 1, wherein, The positioning groove is further provided with a third avoiding cavity adjacent to the side of the connector, and the third avoiding cavity is opposite to the corner of the side of the connector away from the circuit board; The positioning groove is provided with a fourth avoiding cavity corresponding to the side wall of the circuit board, and the fourth avoiding cavity is opposite to the devices protruding from the side edge of the circuit board.

10. A welding apparatus characterized by comprising: The welding positioning tool comprises a tool base; The tool base is provided with a positioning groove for positioning the circuit board and the connector; The tool base is provided with a first avoiding cavity opposite to the protruding part of the connector for accommodating the protruding part. The positioning groove is provided with a first supporting part; The first supporting part comprises a plurality of supporting edges on the groove bottom of the positioning groove, the supporting edges are arranged at intervals for supporting the edges of the circuit board, and a second avoiding cavity is formed between the supporting edges for accommodating the devices on the circuit board. A pressing member is further included; The connector is mounted on the first edge of the circuit board, the second edge of the circuit board is away from the connector, the positioning groove is provided with an opening, and the pressing member is mounted at the opening and continuously applies force to the side wall of the circuit board. The pressing member comprises a first pressing plate and a torsion spring; The first pressing plate is rotationally mounted on the tool base, and the first pressing plate is opposite to the side wall of the circuit board; The torsion spring is mounted between the first pressing plate and the tool base to press the first pressing plate against the side wall of the circuit board. The positioning groove is provided with two first loading and unloading notches arranged opposite to each other, the two first loading and unloading notches are respectively located at the third edge and the fourth edge of the circuit board to expose the side wall of the circuit board at the corresponding positions. The positioning groove is provided with a second supporting part; The second supporting part comprises a supporting platform on the groove bottom of the positioning groove, the supporting platform is opposite to the connector for supporting the connector, and the supporting platform is provided with the first avoiding cavity. A second pressing plate is further included; The second pressing plate is detachably mounted on the notch of the positioning groove, and the second pressing plate is opposite to the connector for pressing the connector. The positioning groove is provided with a second loading and unloading notch for exposing the side of the connector away from the circuit board; The second loading and unloading notch is arranged at a reference position to mark the middle position of the connector. The positioning groove is further provided with a third avoiding cavity adjacent to the side of the connector, and the third avoiding cavity is opposite to the corner of the side of the connector away from the circuit board; The positioning groove is provided with a fourth avoiding cavity corresponding to the side wall of the circuit board, and the fourth avoiding cavity is opposite to the devices protruding from the side edge of the circuit board. The welding positioning tool comprises a tool base; The tool base is provided with a positioning groove for positioning the circuit board and the connector;

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