A pin positioning welding fixture

Abstract

This utility model relates to the field of tooling technology, and in particular to a pin positioning and welding fixture, comprising: a cover plate positioning plate, the positioning plate having at least one cover plate positioning part, the cover plate being embedded in the positioning plate, and the pin protruding from the cover plate and parallel to the cover plate positioning plate; a lead wire positioning plate, fitted onto the cover plate positioning plate, the lead wire positioning plate having a lead wire placement part and a first hollow part, the lead wire being placed in the lead wire placement part and the stripped end of the lead wire protruding from the first hollow part; and a pressure strip, fitted and pressed onto the lead wire positioning plate and attached to the lead wire placement part; wherein, the position of the first hollow part and the cover plate positioning part are adapted to each other, so that when the lead wire positioning plate and the cover plate positioning plate are fitted together, the stripped end of the lead wire is stacked on the pin. With the above configuration, after the pressure strip is attached, the lead wire and the pin can be welded accurately and conveniently, improving the accuracy of lead wire placement, and thus improving the accuracy and efficiency of subsequent welding.

Description

Technical Field

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

[0002] like Figure 1 As shown, during the manufacturing process of the buzzer, it is necessary to solder the lead wire 02 onto the pin 011 on the buzzer cover plate 01. However, when the size of the pin 011 is small, the soldering surface of the pin is relatively small, resulting in a small and narrow soldering space. For example, when the size of the pin 011 is 0.6×0.6×2mm, the spacing is 2.54mm, and the diameter of the stripped end of the lead wire 02 is 0.3mm, the stripped end of the lead wire 02 needs to be stacked on the pin 011 for soldering.

[0003] In existing technologies, manual soldering is often used. However, manual soldering is difficult to operate, prone to producing cold solder joints, and the position of lead 02 is prone to change when it is placed on pin 011 for soldering, which can easily lead to a short circuit between the two solder pads, posing a risk of unstable quality. In addition, it requires high operating skills from employees, has a long soldering time, and low soldering efficiency.

[0004] Therefore, how to improve the welding accuracy and efficiency of pin 011 and lead wire 02 has become an urgent problem to be solved. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides a pin positioning and welding fixture, which adopts structural improvements to improve the accuracy and efficiency of pin and lead wire welding.

[0006] According to a first aspect of the present invention, a pin positioning and welding fixture is provided, comprising:

[0007] A cover plate positioning plate, wherein the positioning plate has at least one cover plate positioning part, the cover plate is embedded in the positioning plate, and the pin on the cover plate protrudes and is parallel to the cover plate positioning plate.

[0008] A lead wire positioning plate is fitted onto the cover plate positioning plate. The lead wire positioning plate has a lead wire placement part and a first hollow part. The lead wire is placed in the lead wire placement part and the stripped end of the lead wire protrudes from the first hollow part.

[0009] A pressure strip is pressed and adhered to the lead positioning plate and attached to the lead placement part;

[0010] The first hollow part is adapted to the position of the cover plate positioning part, so that when the lead wire positioning plate is attached to the cover plate positioning plate, the stripped end of the lead wire is stacked on the pin.

[0011] Furthermore, the cover plate positioning part is a positioning slot formed on the cover plate positioning plate, and the shape of the positioning slot is set in accordance with the port at the bottom of the cover plate.

[0012] Furthermore, the cover plate positioning plate includes a positioning plate body and a gripping portion protruding from the positioning plate body and extending in a direction away from the positioning plate body. The cover plate positioning portion is disposed on the positioning plate body, and the width of the gripping portion is smaller than the width of the positioning plate body.

[0013] Furthermore, the cover plate positioning plate also has a first positioning structure, and the lead wire positioning plate has a second positioning structure adapted to the first positioning structure on the side facing the cover plate positioning plate.

[0014] Furthermore, the first positioning structure is a recess provided on the cover plate positioning plate, and the second positioning structure is a protrusion provided on the lead wire positioning plate that can be inserted into the recess.

[0015] Furthermore, the lead placement part is an elongated positioning groove provided on the lead positioning plate, the spacing of the elongated positioning groove is adapted to the spacing of the pins, and one end of the elongated positioning groove is open to the first hollow part.

[0016] Furthermore, the first hollow portion is provided with a notch corresponding to the pin structure at one end away from the lead wire placement portion, and the lead wire placement portion also has an extension portion extending toward the first hollow portion, the extension portion being disposed opposite to the notch.

[0017] Furthermore, the lead positioning plate also has a second hollow portion, which is disposed in the direction away from the first hollow portion of the lead placement portion. The other end of the elongated groove is open to the second hollow portion, and the lead positioning plate also has a lead placement groove that communicates with the second hollow portion. The lead placement groove is used for placing the lead away from the pin end.

[0018] Furthermore, the lead positioning plate has a magnetic positioning seat on the side facing the pressure strip, and the pressure strip has a magnetic positioning platform corresponding to the magnetic positioning seat, and the magnetic positioning seat is engaged with the magnetic positioning platform.

[0019] Furthermore, the pressure strip also has a strip-shaped protrusion facing the elongated positioning groove. When the pressure strip is attached to the lead wire positioning plate, the strip-shaped protrusion extends into the elongated positioning groove to press and cover the lead wire.

[0020] The beneficial effects of this utility model are as follows: By setting the cover plate positioning part on the cover plate positioning plate, this utility model achieves the positioning of the cover plate and makes the pin protrude and parallel to the cover plate positioning plate. By attaching the lead wire positioning plate to the cover plate positioning plate, the lead wire placement part and the first hollow part on the lead wire positioning plate allow the pin to be placed in the first hollow part and the lead wire and the pin to be stacked parallel. After attaching the pressure strip, the lead wire and the pin can be welded accurately and conveniently. Compared with the prior art, the accuracy of lead wire placement is improved, thereby improving the accuracy and efficiency of subsequent welding. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the welding structure of the buzzer cover pin and lead wire in the background art of this utility model;

[0023] Figure 2 This is a schematic diagram of the pin positioning and welding fixture in an embodiment of the present invention;

[0024] Figure 3 This is an exploded exploded structural diagram of the pin positioning welding fixture in an embodiment of this utility model;

[0025] Figure 4 This is an exploded view of the connection structure of the pressure strip of the pin positioning welding fixture in this embodiment of the present invention;

[0026] Figure 5 As an embodiment of this utility model Figure 4 A magnified schematic diagram of the structure at point A in the diagram;

[0027] Figure 6 This is a schematic diagram of the structure of the cover plate positioning plate in an embodiment of this utility model;

[0028] Figure 7 This is an exploded view of the connection between the cover plate positioning plate and the lead wire positioning plate in an embodiment of this utility model.

[0029] Figure 8 This is a schematic diagram of the lead positioning plate in an embodiment of the present invention;

[0030] Figure 9 This is an exploded view of the connection between the lead positioning plate and the pressure strip in an embodiment of this utility model.

[0031] Figure 10 As an embodiment of this utility model Figure 9 A magnified schematic diagram of the structure at point B in the diagram.

[0032] Explanation of reference numerals in the attached drawings: 01, cover plate; 011, pin; 02, lead wire; 1, cover plate positioning plate; 1a, positioning plate body; 1b, gripping part; 11, cover plate positioning part; 12, first positioning structure; 2, lead wire positioning plate; 21, lead wire placement part; 21a, extension part; 22, first hollow part; 22a, notch; 23, second positioning structure; 24, second hollow part; 25, lead wire placement groove; 26, magnetic positioning seat; 3, pressure strip; 31, magnetic positioning platform; 32, strip-shaped rib. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] like Figures 2 to 10 The pin positioning and welding fixture shown includes a cover plate positioning plate 1, a lead wire positioning plate 2, and a pressure strip 3. Please refer to the details. Figure 2 and Figure 3 In an embodiment of this utility model, the positioning plate has at least one cover plate positioning part 11, the cover plate is embedded in the positioning plate, and the pins on the cover plate protrude and are parallel to the cover plate positioning plate 1; as Figure 2As shown in the embodiments of this utility model, one or more cover plate positioning parts 11 can be provided, and multiple cover plate positioning parts 11 can be arranged side by side to facilitate subsequent welding operations. It should be noted that in the embodiments of this utility model, the cover plate positioning part 11 has a variety of structural forms, such as a groove adapted to the shape of the bottom of the cover plate, or a column corresponding to the process hole at the bottom of the cover plate.

[0037] Please continue to refer to Figure 2 In this embodiment of the present invention, the lead wire positioning plate 2 is attached to the cover plate positioning plate 1. The lead wire positioning plate 2 has a lead wire placement part 21 and a first hollow part 22. The lead wire 02 is placed in the lead wire placement part 21 and the stripped end of the lead wire 02 protrudes from the first hollow part 22. It should be noted that the setting of the first hollow part 22 provides a condition for the overlapping connection of the pin and the lead wire 02. After the lead wire 02 positioning part is attached to the cover plate positioning plate 1, the pin on the cover plate 01 protrudes from the upper surface of the cover plate positioning plate 1 and enters the first hollow part 22. The stripped end of the lead wire 02 is also placed in the first hollow part 22 through the lead wire placement part 21. Through this structural form, the stripped end of the lead wire 02 can overlap with the pin. Of course, it should be noted that the structural form of the lead wire placement part 21 can also be various. For example, it can be clamped by a wire clamp or it can be achieved by setting a strip groove.

[0038] In this embodiment of the utility model, the pressure strip 3 is pressed and attached to the lead wire positioning plate 2 and attached to the lead wire placement part 21; the function of the pressure strip 3 is to fix the lead wire 02 placed on the lead wire placement part 21 and prevent it from moving during the welding process.

[0039] In this embodiment of the invention, the first hollow portion 22 is adapted to the position of the cover plate 01 positioning portion 11, so that when the lead wire positioning plate 2 is attached to the cover plate positioning plate 1, the stripped end of the lead wire 02 is stacked on the pin. In actual construction, firstly, the cover plate 01 is positioned on the cover plate 01 positioning portion 11 of the cover plate positioning plate 1. Then, the lead wire 02 is fixed to the lead wire placement portion 21 of the lead wire positioning plate 2. Next, the lead wire 02 fixing plate is attached to the cover plate positioning plate 1, so that the stripped end of the lead wire 02 is stacked on the pin. Finally, the pressure strip 3 is pressed onto the lead wire positioning plate 2. Finally, the entire fixture is placed on an automatic welding platform for automatic welding, thereby greatly reducing the operational difficulty for employees and improving welding efficiency and quality.

[0040] In the above embodiment, the cover plate 01 positioning part 11 on the cover plate positioning plate 1 is used to position the cover plate 01 and make the pin protrude and parallel to the cover plate positioning plate 1. The lead wire positioning plate 2 is attached to the cover plate positioning plate 1. The lead wire placement part 21 and the first hollow part 22 on the lead wire positioning plate 2 are provided so that the pin can be placed in the first hollow part 22 and the lead wire 02 is stacked parallel to the pin. After the pressure strip 3 is attached, the lead wire 02 and the pin can be welded accurately and conveniently. Compared with the prior art, the accuracy of the lead wire 02 placement is improved, thereby improving the accuracy and efficiency of subsequent welding.

[0041] In the shape of the above embodiments, such as Figure 3 and Figure 6 As shown, the cover plate positioning part 11 is a positioning slot formed on the cover plate positioning plate 1, and the shape of the positioning slot is similar to the port at the bottom of the cover plate 01. In this embodiment of the present invention, the bottom of the cover plate 01 has a rectangular protruding port, and the cover plate positioning part 11 is set as a rectangular slot corresponding to the rectangular port. Through this structural form, the cover plate 01 of the buzzer can be conveniently positioned. Of course, it should be noted that those skilled in the art can set the specific structure of the cover plate positioning part 11 according to the shape of the end cap.

[0042] Please continue to refer to Figure 6 In some embodiments of this utility model, the cover plate positioning plate 1 includes a positioning plate body 1a and a gripping part 1b protruding from the positioning plate body 1a and extending in a direction away from the positioning plate body 1a. The cover plate positioning part 1b is disposed on the positioning plate body 1a, and the width of the gripping part 1b is smaller than the width of the positioning plate body 1a. It should be noted that the structure of the gripping part 1b can take many forms. In the embodiments of this utility model, the cover plate 01 is positioned on the positioning plate body 1a, and the gripping part 1b facilitates the movement of the entire fixture.

[0043] To further improve the accuracy of the bonding between the lead wire positioning plate 2 and the cover plate positioning plate 1, such as Figure 6 and Figure 7 As shown, the cover plate positioning plate 1 also has a first positioning structure 12, and the lead wire positioning plate 2 has a second positioning structure 23 adapted to the first positioning structure 12 on the side facing the cover plate positioning plate 1. It should be noted that the first positioning structure 12 and the second positioning structure 23 can take many forms. For example, they can be conventional slot and post structures. Holes can be provided on the cover plate positioning plate 1 and posts can be provided on the lead wire positioning plate 2, or posts can be provided on the cover plate positioning plate 1 and corresponding holes can be provided on the lead wire positioning plate 2. Those skilled in the art can set them as needed.

[0044] In some embodiments of this utility model, such as Figure 7As shown, the first positioning structure 12 is a recess on the cover plate positioning plate 1, and the second positioning structure 23 is a protrusion on the lead wire positioning plate 2 that can be inserted into the recess. The recess can be a groove or a hole, and the protrusion's structure is adapted to the recess. This structural form is simple and easy to process and manufacture.

[0045] Please continue to refer to Figure 8 In this embodiment of the invention, the lead placement part 21 is an elongated positioning groove provided on the lead positioning plate 2. The spacing of the elongated positioning groove is adapted to the spacing of the pins, and one end of the elongated positioning groove is open to the first hollow part 22. It should be noted that in this embodiment of the invention, the width of the elongated positioning groove is slightly larger than the diameter of the lead 02. By opening the elongated positioning groove to the first hollow part 22, the stripped end of the lead 02 can enter the first hollow part 22 and be stacked on the pins. With this structural form, when the lead positioning plate 2 and the cover plate positioning plate 1 are connected by the first positioning structure 12 and the second positioning structure 23, the positioning of the pins and the lead 02 is achieved.

[0046] Please continue to refer to Figure 8 In an embodiment of this utility model, the first hollow portion 22 is further provided with a notch 22a corresponding to the pin structure at one end opposite to the lead wire placement portion 21. The lead wire placement portion 21 also has an extension portion 21a extending toward the first hollow portion 22, and the extension portion 21a is disposed opposite to the notch 22a. By providing the notch 22a, the positioning of the pin structure can be made more accurate, and by the relative arrangement of the extension portion 21a and the notch 22a, the fixed position of the lead wire 02 can be made closer to the pin, thereby further improving the accuracy of stripping the lead wire 02 and positioning the pin.

[0047] In embodiments of this utility model, such as Figure 8 As shown, the lead positioning plate 2 also has a second hollow portion 24, which is located in the direction opposite to the first hollow portion 22 of the lead placement portion 21. The other end of the elongated groove is open to the second hollow portion 24, and the lead positioning plate 2 also has a lead placement groove 25 communicating with the second hollow portion 24. The lead placement groove 25 is used for placing the lead 02 away from the pin end. The second hollow portion 24 makes it easier to remove the lead 02 after soldering. The operator can pick up the lead 02 from the first hollow portion 22 and the second hollow portion 24 at the same time, avoiding the lead 02 from being stuck. In addition, the lead placement groove 25 can accommodate the placement of lead 02 of various lengths, so that the lead 02 can maintain its straightness after being placed on the lead placement portion 21.

[0048] Please continue to refer to Figure 9 and Figure 10To further improve the positioning convenience of the pressure strip 3 and the lead wire positioning plate 2, the lead wire positioning plate 2 also has a magnetic positioning seat 26 on the side facing the pressure strip 3. The pressure strip 3 has a magnetic positioning platform 31 corresponding to the magnetic positioning seat 26, and the magnetic positioning seat 26 and the magnetic positioning platform 31 are engaged. Specifically, the positioning seat has a raised annular boss that matches the inner diameter of the magnetic positioning platform 31 on the pressure strip 3. Both the magnetic positioning seat 26 and the magnetic positioning platform 31 contain magnets that attract each other. This structural design facilitates the precise placement and convenient removal of the pressure strip 3.

[0049] Please continue to refer to Figure 10 In this embodiment of the invention, to further improve the reliability of the lead wire 02 fixation, the pressure strip 3 also has a strip-shaped protrusion 32 facing the elongated positioning groove. When the pressure strip 3 is attached to the lead wire positioning plate 2, the strip-shaped protrusion 32 extends into the elongated positioning groove to press the lead wire 02. It should be noted that the width of the strip-shaped protrusion 32 is smaller than that of the elongated groove, and the size of the protrusion is not greater than the depth of the elongated groove. With this configuration, when the pressure strip 3 and the lead wire positioning plate 2 are adsorbed, the strip-shaped protrusion 32 can press onto the lead wire 02, thereby fixing the lead wire 02 and preventing the lead wire 02 from shaking during welding.

[0050] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pin positioning welding jig, characterized by, include: A cover plate positioning plate, wherein the positioning plate has at least one cover plate positioning part, the cover plate is embedded in the positioning plate, and the pin on the cover plate protrudes and is parallel to the cover plate positioning plate. A lead wire positioning plate is fitted onto the cover plate positioning plate. The lead wire positioning plate has a lead wire placement part and a first hollow part. The lead wire is placed in the lead wire placement part and the stripped end of the lead wire protrudes from the first hollow part. A pressure strip is pressed and adhered to the lead positioning plate and attached to the lead placement part; The first hollow part is adapted to the position of the cover plate positioning part, so that when the lead wire positioning plate is attached to the cover plate positioning plate, the stripped end of the lead wire is stacked on the pin.

2. The pin positioning and welding fixture according to claim 1, characterized in that, The cover plate positioning part is a positioning slot formed on the cover plate positioning plate, and the shape of the positioning slot is set in accordance with the shape of the port at the bottom of the cover plate.

3. The pin positioning and welding fixture according to claim 2, characterized in that, The cover plate positioning plate includes a positioning plate body and a gripping portion that protrudes from the positioning plate body and extends in a direction away from the positioning plate body. The cover plate positioning portion is disposed on the positioning plate body, and the width of the gripping portion is smaller than the width of the positioning plate body.

4. The pin positioning and welding fixture according to claim 1, characterized in that, The cover plate positioning plate also has a first positioning structure, and the lead wire positioning plate has a second positioning structure adapted to the first positioning structure on the side facing the cover plate positioning plate.

5. The pin positioning and welding fixture according to claim 4, characterized in that, The first positioning structure is a recess on the cover plate positioning plate, and the second positioning structure is a protrusion on the lead wire positioning plate that can be inserted into the recess.

6. The pin positioning and welding fixture according to claim 1, characterized in that, The lead placement part is a long strip-shaped positioning groove provided on the lead positioning plate. The spacing of the long strip-shaped positioning groove is adapted to the spacing of the pins. One end of the long strip-shaped positioning groove is open to the first hollow part.

7. The pin positioning and welding fixture according to claim 6, characterized in that, The first hollow portion is provided with a notch corresponding to the pin structure at one end away from the lead wire placement portion. The lead wire placement portion also has an extension portion extending toward the first hollow portion, and the extension portion is disposed opposite to the notch.

8. The pin positioning and welding fixture according to claim 7, characterized in that, The lead positioning plate also has a second hollow portion, which is located in the direction away from the first hollow portion of the lead placement portion. The other end of the elongated groove is open to the second hollow portion. The lead positioning plate also has a lead placement groove that communicates with the second hollow portion. The lead placement groove is used for placing the lead away from the pin end.

9. The pin positioning and welding fixture according to claim 1, characterized in that, The lead positioning plate also has a magnetic positioning seat on the side facing the pressure strip, and the pressure strip has a magnetic positioning platform corresponding to the magnetic positioning seat, and the magnetic positioning seat is engaged with the magnetic positioning platform.

10. The pin positioning and welding fixture according to claim 6, characterized in that, The pressure strip also has a strip-shaped protrusion facing the elongated positioning groove. When the pressure strip is attached to the lead wire positioning plate, the strip-shaped protrusion extends into the elongated positioning groove to press and cover the lead wire.

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