PIN welding jig

Abstract

The utility model discloses a PIN needle welding jig which comprises a jig frame, a plurality of positioning parts, a plurality of clamping parts, a plurality of clamping parts, a plurality of clamping parts, a plurality of clamping parts, a plurality of clamping parts and a plurality of clamping parts, and is characterized in that the positioning parts are used for positioning the jig frame to a to-be-welded part; the PIN needle inserting plate is connected to the first side of the jig frame, and a plurality of first PIN needle inserting holes are formed in the PIN needle inserting plate; the PIN needle limiting assembly is movably arranged between the jig frame and the PIN needle inserting plate, and the PIN needle limiting assembly is configured to be capable of being switched between a first position and a second position; when the PIN needle limiting assembly is located at the first position, the PIN needle limiting assembly abuts against the PIN needle inserted into the first PIN needle inserting hole, and the PIN needle is limited. When the PIN limiting assembly is located at the second position, the PIN limiting assembly is separated from the PIN inserted into the first PIN insertion hole, and the PIN is not limited any more. According to the PIN welding jig, the welding effect of the PIN can be remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of welding jigs, and in particular to a PIN needle welding jig. Background Art

[0002] A PIN is a metal object used to conduct electricity (signals) and is widely used in electronic components. When manufacturing electronic devices, multiple PINs need to be soldered to connect them to other electronic components (such as chips and other control elements).

[0003] Currently, when soldering pins, the corresponding jig must be reversed, the pins placed in the jig, and a pin baffle installed to hold the pins in a specific position. The jig must then be flipped over and aligned with the workpiece to be welded. Once the jig is correctly positioned, welding can begin. After welding is complete, the pin baffle must be removed from the jig to allow for the next soldering step. This tedious process requires disassembly and assembly of the pin baffle for each weld, making automation difficult. Furthermore, the pin baffle makes it difficult to maintain proper verticality and position for each pin, leaving welding quality to be improved.

[0004] Therefore, improvements are needed to at least partially solve the above problems. Utility Model Content

[0005] The Summary of the Utility Model introduces a series of simplified concepts that will be further described in the Detailed Description of the Utility Model. The Summary of the Utility Model of the Utility Model does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0006] In order to at least partially solve the above problems, according to a first aspect of the present invention, a PIN welding jig is provided, which includes:

[0007] A jig frame, wherein a plurality of positioning parts are provided on one side of the jig frame, and the positioning parts are used to position the jig frame to the part to be welded;

[0008] A PIN pin plug board is connected to the first side of the fixture frame and is provided with a plurality of first PIN pin jacks;

[0009] a PIN pin limiting assembly, the PIN pin limiting assembly being movably disposed between the fixture frame and the PIN pin inserting plate and being configured to be switchable between a first position and a second position;

[0010] Among them, when the PIN pin limiting assembly is in the first position, the PIN pin limiting assembly abuts against the PIN pin inserted into the first PIN pin jack to limit the PIN pin; when the PIN pin limiting assembly is in the second position, the PIN pin limiting assembly is separated from the PIN pin inserted into the first PIN pin jack and no longer limits the PIN pin.

[0011] Exemplarily, the PIN needle limiting assembly includes:

[0012] a connecting plate movably disposed between the jig frame and the PIN pin inserting plate and configured to be switchable between a target position and an initial position;

[0013] a limiting member, wherein a first end of the limiting member is connected to a side of the connecting plate facing the PIN pin plugging plate, and a second end of the limiting member extends to a side of the PIN pin plugging plate away from the connecting plate;

[0014] An elastic member, through which the connecting plate is connected to the fixture frame or the PIN pin plug board;

[0015] Exemplarily, when the connecting plate moves to the target position under the action of an external force, the elastic member is compressed, the PIN pin limiting assembly is in the first position, and the second end of the limiting member abuts against the PIN pin inserted into the first PIN pin insertion hole, thereby limiting the PIN pin;

[0016] When there is no external force, the connecting plate moves to the initial position under the action of the elastic member, the PIN pin limiting assembly is in the second position, the second end of the limiting member is separated from the PIN pin inserted into the first PIN pin jack, and the PIN pin is no longer limited.

[0017] Exemplarily, the end surface of the jig frame facing the preset direction is flush with the end surface of the PIN pin plugging plate facing the preset direction;

[0018] When the PIN needle limiting assembly is in the first position, the end surface of the connecting plate facing the preset direction is flush with the end surface of the fixture frame facing the preset direction and the end surface of the PIN needle inserting plate facing the preset direction;

[0019] When the PIN needle limiting assembly is in the second position, the end surface of the connecting plate facing the preset direction protrudes from the end surface of the jig frame facing the preset direction and the end surface of the PIN needle plugging plate facing the preset direction.

[0020] Exemplarily, a limiting portion is provided on the side of the jig frame facing the PIN pin plug-in plate or on the side of the PIN pin plug-in plate facing the jig frame, and the limiting portion is used to limit the connecting plate so that the connecting plate can only move back and forth along a preset direction to switch between the target position and the initial position.

[0021] Exemplarily, the limiting portion includes two bosses that are arranged in parallel and spaced apart and extend along the preset direction.

[0022] Exemplarily, the PIN pin welding jig further includes a pressure plate and a pressure block, wherein the pressure plate is connected to a side of the jig frame away from the PIN pin plug-in plate, a through hole is provided on the pressure plate at a position corresponding to the second PIN pin plug-in hole, and the pressure block is located in the through hole and is used to press the PIN pin.

[0023] Exemplarily, the weight of the compact is 1g-5g.

[0024] Exemplarily, at least one hollow portion is provided on the pressing plate.

[0025] According to the PIN pin welding jig of the present invention, the PIN pin can be limited or released by switching the position of the PIN pin limiting assembly between a first position and a second position. Thus, before welding, the PIN pin limiting assembly can be switched to the second position to insert the PIN pin into the first PIN pin receptacle. Afterwards, the PIN pin limiting assembly can be switched to the first position to limit the PIN pin, and the PIN pin can be welded to the component to be welded while being limited. After welding, the PIN pin limiting assembly can be switched to the second position, and the PIN pin welding jig can be separated from the welded PIN pin. According to the PIN pin welding jig, before and after welding, it is only necessary to switch the position of the PIN pin limiting assembly, without the need to disassemble or assemble parts. The operation is simple and can be easily automated. In addition, the PIN pin limiting assembly can limit the PIN pin during the welding process, ensuring the verticality and position of the PIN pin and improving the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following drawings of this application are hereby incorporated as part of this application for understanding this application. The drawings show the embodiments of this application and their descriptions, and are used to explain the device and principle of this application. In the drawings,

[0027] Figure 1 This is a schematic diagram of the overall structure of a PIN pin welding jig, a PIN pin, and a component to be welded according to an embodiment of the present application;

[0028] Figure 2 for Figure 1A schematic structural diagram of the PIN pin welding fixture from another angle, wherein a PIN pin is inserted into the first PIN pin socket;

[0029] Figure 3 for Figure 1 A schematic structural diagram of the PIN pin welding fixture from another angle, wherein no PIN pin is inserted into the first PIN pin socket;

[0030] Figure 4 Schematic diagram of the structure of a PIN pin limiting assembly in a PIN pin welding jig according to an embodiment of the present application, wherein the elastic member is not shown;

[0031] Figure 5 Schematic diagram of the structure of a pressure plate in a PIN pin welding jig according to an embodiment of the present application;

[0032] Figure 6 Schematic diagram of the structure of a pressing block in a PIN pin welding jig according to an embodiment of the present application.

[0033] Description of reference numerals:

[0034] 10-parts to be welded, 11-positioning holes;

[0035] 20-PIN;

[0036] 100- fixture frame, 110- positioning portion, 120- second PIN pin jack;

[0037] 200-PIN pin board, 210-first PIN pin jack, 220-strip hole;

[0038] 300-PIN needle limit assembly, 310-connecting plate, 320-limiting part;

[0039] 400-pressing plate, 410-hollow portion, 420-through hole, 430-screw hole;

[0040] 500-briquette. DETAILED DESCRIPTION

[0041] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, some technical features well known in the art are not described in order to avoid confusion with the present application.

[0042] It should be understood that the present application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present application to those skilled in the art. In the drawings, the dimensions and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals throughout represent like elements.

[0043] It should be understood that although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are merely used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Therefore, without departing from the teachings of this application, the first element, component, region, layer, or part discussed below may be represented as a second element, component, region, layer, or part.

[0044] Spatially relative terms, such as "below," "beneath," "beneath," "above," "upper," etc., may be used herein for convenience to describe the relationship of one element or feature to other elements or features illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientations depicted in the figures.

[0045] The purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present application. When used herein, the singular forms "a", "an", and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0046] The embodiments of the utility model are described herein with reference to cross-sectional views which are schematic diagrams of ideal embodiments (and intermediate structures) of the present application. Thus, variations in the shapes shown due to, for example, manufacturing techniques and / or tolerances can be expected. Therefore, the embodiments of the present application should not be limited to the specific shapes shown herein, but include shape deviations due to, for example, manufacturing. Therefore, what is shown in the figures is schematic in nature, and their shapes are not intended to show the actual shape of the device and are not intended to limit the scope of the present application.

[0047] Refer to the attached Figure 1-6A PIN pin welding jig according to an embodiment of the present application is exemplarily described, comprising a jig frame 100 , a PIN pin inserting plate 200 , and a PIN pin limiting assembly 300 .

[0048] The jig frame 100 is the main frame of the PIN soldering jig. It is used to position the jig frame 10 to the component 10 to be soldered, so that the PIN pins inserted into the PIN soldering jig can be aligned with the positions of the PIN pins 20 on the component 10 to be soldered. For example, the component 10 to be soldered can be a PCB (Printed Circuit Board), a DBC (Direct Bonded Copper) substrate, an AMB (Active Metal Brazing) substrate, etc. A plurality of positioning portions 110 are provided on one side of the component 10 to be soldered. These positioning portions 110 are used to position the jig frame 100 to the component 10 to be soldered.

[0049] In this embodiment, the positioning portion 110 includes four positioning posts, which are disposed at the four corners of the jig frame 100. The positions of the four positioning posts correspond to the positions of the positioning holes 11 at the four corners of the component 10 to be welded. Therefore, by simply inserting the four positioning posts into the four positioning holes 11 of the jig frame 100, the jig frame 100 (i.e., the PIN welding jig) can be positioned to the component 10 to be welded. In other embodiments, the positioning portion 110 may include five or more positioning posts, and the extra positioning posts can be used as a foolproof design.

[0050] The PIN pin board 200 is connected to the first side of the jig frame 100. Specifically, the PIN pin board 200 is detachably connected to the first side of the jig frame 100 via screws. The PIN pin board 200 is provided with a plurality of first PIN pin insertion holes 210. The first PIN pin insertion holes 210 extend through the PIN pin board 200. The aperture of the first PIN pin insertion holes 210 is slightly larger than the diameter of the PIN pin 20, allowing the PIN pin 20 to be inserted into the first PIN pin insertion holes 210 while maintaining a substantially perpendicular position.

[0051] The PIN pin limiting assembly 300 is movably disposed between the fixture frame 100 and the PIN pin inserting plate 200, and is configured to be switchable between a first position and a second position. When the PIN pin limiting assembly 300 is in the first position, the PIN pin limiting assembly 300 abuts against the PIN pin 20 inserted into the first PIN pin insertion hole 210, limiting the position of the PIN pin; when the PIN pin limiting assembly 300 is in the second position, the PIN pin limiting assembly 300 separates from the PIN pin 20 inserted into the first PIN pin insertion hole 210, and no longer limits the position of the PIN pin. It should be noted that the so-called limiting here refers to limiting the movement of the PIN pin 20 so that it maintains a specific position and verticality within the first PIN pin insertion hole 210.

[0052] According to the PIN pin welding jig of the embodiment of the present application, the PIN pin 20 can be restrained or released by switching the position of the PIN pin restraining assembly 300 between a first position and a second position. Thus, before welding, the PIN pin restraining assembly 300 can be switched to the second position to insert the PIN pin 20 into the first PIN pin insertion hole 210. Thereafter, the PIN pin restraining assembly 300 can be switched to the first position to restrain the PIN pin 20, and the PIN pin 20 can be soldered (e.g., reflow soldered) to the component 10 to be soldered while restrained. After soldering, the PIN pin restraining assembly 300 can be switched to the second position, and the PIN pin welding jig can be separated from the soldered PIN pin 20. According to the PIN pin welding jig of the present application, only the position of the PIN pin restraining assembly 300 needs to be switched before and after welding, without the need for disassembly of components. The operation is simple and easy to automate. The PIN pin restraining assembly 300 can restrain the PIN pin 20 during the welding process, ensuring the verticality and position of the PIN pin 20 and improving the welding effect.

[0053] See attached Figure 2 -Attached Figure 4 In this embodiment, the PIN needle limiting assembly 300 includes a connecting plate 310, a limiting member 320 and an elastic member (not shown in the figure).

[0054] The connecting plate 310 is movably disposed between the jig frame 100 and the PIN pin plug plate 200 and is configured to be switchable between a target position and an initial position. The connecting plate 310 is connected to the jig frame 100 or the PIN pin plug plate 200 via an elastic member. In the absence of an external force, the connecting portion can be moved to the initial position and maintained at the initial position under the action of the elastic member. The connecting plate 310 can be moved from the initial position to the target position under the action of an external force, and when the connecting plate 310 moves to the target position, the elastic member is compressed. Exemplarily, the elastic member can be a spring or a metal shrapnel.

[0055] The first end of the limiting member 320 is connected to the side of the connecting plate 310 facing the PIN pin plug-in board 200, and the second end of the limiting member 320 extends to the side of the PIN pin plug-in board 200 away from the connecting plate 310. The limiting member 320 can move synchronously with the movement of the connecting plate 310. When the connecting plate 310 is in the initial position, the second end of the limiting member 320 is separated from the PIN pin 20 inserted into the first PIN pin jack 210 and does not limit the PIN pin 20; when the connecting plate 310 moves to the target position, the second end of the limiting member 320 moves to the first PIN pin jack 210, abuts against the PIN pin 20 inserted into the first PIN pin jack 210, and limits the PIN pin 20. It should be noted that there can be multiple limiting members 320, and each limiting member 320 can be used to limit one or more PIN pins 20.

[0056] In this embodiment, a strip hole 220 is provided at the position of the corresponding part of the limit member 320 of the PIN pin plug board 200. The first end of the limit member 320 is located in the strip hole 220, and the second end of the limit member 320 can pass through the strip hole 220 and extend to the side of the PIN pin plug board 200 away from the connecting plate 310. When the connecting plate 310 switches between the target position and the initial position, the limit member 320 can move in the strip hole 220.

[0057] Thus, according to the PIN pin welding jig of the embodiment of the present application, the PIN pin 20 inserted into the first PIN pin receptacle 210 can be limited or released by simply applying an external force to the connecting plate 310 or stopping the application of the external force. When the connecting plate 310 moves to the target position under the action of an external force, the elastic member is compressed. At this time, the PIN pin limiting assembly 300 is in the first position, and the second end of the limiting member 320 abuts against the PIN pin 20 inserted into the first PIN pin receptacle 210, limiting the PIN pin 20. When no external force is applied, the connecting plate 310 moves to the initial position under the action of the elastic member. At this time, the PIN pin limiting assembly 300 is in the second position, and the second end of the limiting member 320 separates from the PIN pin 20 inserted into the first PIN pin receptacle 210, no longer limiting the PIN pin 20.

[0058] In this embodiment, the fixture frame 100 is oriented toward a preset direction (ie Figure 2When the PIN pin limiting assembly 300 is in the first position (that is, when the connecting plate 310 is in the target position), the end surface of the connecting plate 310 facing the preset direction is flush with the end surface of the jig frame 100 facing the preset direction and the end surface of the PIN pin plug board 200 facing the preset direction. When the PIN pin limiting assembly 300 is in the second position (that is, when the connecting plate 310 is in the initial position), the end surface of the connecting plate 310 facing the preset direction protrudes from the end surface of the jig frame 100 facing the preset direction and the end surface of the PIN pin plug board 200 facing the preset direction. Thus, when the PIN pin limiting assembly 300 is in the second position, the PIN pin 20 can be inserted into the first PIN pin insertion hole 210. At this time, the PIN pin limiting assembly 300 does not limit the PIN pin, and then the PIN pin welding jig is clamped by a clamping member such as a mechanical clamp. Specifically, the clamping position includes the side of the PIN pin welding jig facing the preset direction, so that the end face of the connecting plate 310 facing the preset direction is flush with the end face of the jig frame 100 facing the preset direction and the end face of the PIN pin plug board 200 facing the preset direction. That is, when clamping the PIN pin welding jig, an external force is applied to the end face of the connecting plate 310 facing the preset direction, so that it moves from the initial position to the target position. Therefore, the PIN pin can be limited when the PIN pin limiting assembly 300 is clamped. After clamping the PIN pin limit assembly 300, it can be moved and flipped, and the jig frame 100 can be positioned over the component 10 to be welded, so that the PIN pin 20 inserted into the PIN pin welding jig can be aligned with the position on the component 10 to be welded where the PIN pin 20 needs to be welded, and then welding can be performed. After welding is completed, the clamping member can be released, and no external force is applied to the end face of the connecting plate 310 facing the preset direction, allowing it to move from the target position to the initial position under the action of the elastic member. The PIN pin limit assembly 300 no longer limits the PIN pin 20, and the welded component 10 to be welded and the PIN pin 20 can be separated from the PIN pin welding jig. On the one hand, the above process can be achieved by clamping and releasing the PIN pin welding jig with the clamping member, eliminating the need for disassembly and assembly of components, facilitating automation. On the other hand, the PIN pin 20 is in a limited state during welding, maintaining a good position and verticality, achieving a good welding effect.

[0059] In some embodiments, a limiting portion (not shown in the figure) is provided on one side of the fixture frame 100 facing the PIN pin plug board 200 or on one side of the PIN pin plug board 200 facing the fixture frame 100. The limiting portion is used to limit the connecting plate 310 so that the connecting plate 310 can only move back and forth along a preset direction (for example, along Figure 2The position-limiting portion can be configured to move back and forth in the left and right directions to switch between the target position and the initial position. For example, the position-limiting portion can include two bosses spaced parallel to each other and extending in a predetermined direction. The connecting plate 310 is located between the two bosses spaced parallel to each other, and abuts against the two bosses at both ends thereof. Thus, under the position-limiting effect of the two bosses, the connecting plate 310 can only reciprocate in the predetermined direction to switch between the target position and the initial position.

[0060] See attached Figure 4 In this embodiment, a second PIN pin socket 120 is provided on the jig frame 100 at a position corresponding to the first PIN pin socket 210. There are multiple second PIN pin sockets 120, each corresponding one-to-one to the multiple first PIN pin sockets 210. The diameter of the second PIN pin socket 120 is slightly larger than the diameter of the PIN pin 20, allowing the PIN pin 20 to be inserted into both the first PIN pin socket 210 and the second PIN pin socket 120 simultaneously. Bar-shaped holes may be provided on the connecting plate 310 at positions corresponding to the first PIN pin socket 210 and the second PIN pin socket 120 to ensure that the connecting plate 310 does not collide with the PIN pin 20 when switching between the initial and target positions. The provision of the second PIN pin socket 120 allows for the insertion of longer PIN pins 20 in the PIN pin soldering jig, improving its applicability. In some embodiments, when the PIN pin 20 to be soldered is shorter, the second PIN pin socket 120 may not be provided on the jig frame 100.

[0061] See attached Figure 5 、 6In this embodiment, the PIN pin welding jig further includes a pressure plate 400 and a pressure block 500. The pressure plate 400 is connected to the side of the jig frame 100 away from the PIN pin insertion plate 200. The pressure plate 400 is provided with multiple screw holes 430 and can be removably connected to the side of the jig frame 100 away from the PIN pin insertion plate 200 via screws. A through hole 420 is also provided on the pressure plate 400 at a position corresponding to the second PIN pin insertion hole 120. The aperture of the through hole 420 can be equal to or slightly larger than the aperture of the second PIN pin insertion hole 120. There are multiple through holes 420, and the multiple through holes 420 correspond one-to-one to the multiple second PIN pin insertion holes 120. The pressure block 500 is located in the through hole 420 and is used to press the PIN pins 20 inserted into the first PIN pin insertion hole 210 and the second PIN pin insertion hole 120. A pressure block 500 is provided in each through hole 420. For example, through-hole 420 may be a circular hole, and pressure block 500 may be cylindrical, with a diameter smaller than the diameter of through-hole 420. The weight of pressure block 500 may be 1g-5g, and the pressure applied to PIN pin 20 may be flexibly adjusted as needed. For example, pressure block 500 may be partially located in second PIN pin insertion hole 120 when pressing against PIN pin 20.

[0062] For example, after the jig frame 100 is positioned over the component 10 to be welded and the PIN pins 20 inserted into the PIN welding jig are aligned with the locations on the component 10 to be welded, multiple pressing blocks 500 are placed into the multiple through-holes 420 on the pressure plate 400 connected to the jig frame 100 (the pressing blocks 500 located in the through-holes 420 press against the PIN pins 20), and then welding can be performed. The pressing blocks 500 are used to increase weight and provide a pressing force on the PIN pins 20 during welding, ensuring that the height of the PIN pins 20 is consistent, reducing the pin drop rate and the probability of poor soldering of the PIN pins 20.

[0063] The pressure plate 400 may be provided with a hollow portion 410. The placement of the hollow portion 410 may be determined based on the distribution of the PIN pins 20 on the PIN pin inserting plate 200 and may be located in an area away from the PIN pins 20. This hollow portion can reduce the material usage of the pressure plate 400 and lower the cost of the pressure plate 400. One or more hollow portions 410 may be provided.

[0064] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely illustrative and are not intended to limit the scope of the present application. Various changes and modifications may be made therein by those skilled in the art without departing from the scope and spirit of the present application. All such changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0065] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0066] Similarly, it should be understood that in order to streamline the present application and aid in understanding one or more of the various utility model aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, this approach of the present application should not be interpreted as reflecting the intention that the application claimed for protection requires more features than those explicitly recited in each claim. More precisely, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features that are less than all the features of a single disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into the detailed description, with each claim itself serving as a separate embodiment of the present application.

[0067] Those skilled in the art will understand that, except where mutually exclusive, all features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all processes or units of any method or apparatus disclosed herein may be combined in any combination. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by an alternative feature that provides the same, equivalent, or similar purpose.

[0068] Furthermore, those skilled in the art will appreciate that although some embodiments described herein include certain features included in other embodiments but not other features, combinations of features from different embodiments are intended to be within the scope of this application and to form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

[0069] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims

1. A PIN needle welding fixture, characterized in that: include: A jig frame, wherein a plurality of positioning parts are provided on one side of the jig frame, and the positioning parts are used to position the jig frame to the part to be welded; A PIN pin plug board is connected to the first side of the fixture frame and is provided with a plurality of first PIN pin jacks; a PIN pin limiting assembly, the PIN pin limiting assembly being movably disposed between the fixture frame and the PIN pin inserting plate and being configured to be switchable between a first position and a second position; Among them, when the PIN pin limiting assembly is in the first position, the PIN pin limiting assembly abuts against the PIN pin inserted into the first PIN pin jack to limit the PIN pin; when the PIN pin limiting assembly is in the second position, the PIN pin limiting assembly is separated from the PIN pin inserted into the first PIN pin jack and no longer limits the PIN pin.

2. The PIN needle welding jig according to claim 1, characterized in that: The PIN needle limiting component includes: a connecting plate movably disposed between the jig frame and the PIN pin inserting plate and configured to be switchable between a target position and an initial position; a limiting member, wherein a first end of the limiting member is connected to a side of the connecting plate facing the PIN pin plugging plate, and a second end of the limiting member extends to a side of the PIN pin plugging plate away from the connecting plate; An elastic member, through which the connecting plate is connected to the jig frame or the PIN pin board.

3. The PIN needle welding jig according to claim 2, characterized in that: When the connecting plate moves to the target position under the action of an external force, the elastic member is compressed, the PIN pin limiting assembly is in the first position, and the second end of the limiting member abuts against the PIN pin inserted into the first PIN pin insertion hole, thereby limiting the PIN pin; When there is no external force, the connecting plate moves to the initial position under the action of the elastic member, the PIN pin limiting assembly is in the second position, the second end of the limiting member is separated from the PIN pin inserted into the first PIN pin jack, and the PIN pin is no longer limited.

4. The PIN needle welding jig according to claim 2, characterized in that: The end surface of the jig frame facing the preset direction is flush with the end surface of the PIN pin plugging plate facing the preset direction; When the PIN needle limiting assembly is in the first position, the end surface of the connecting plate facing the preset direction is flush with the end surface of the fixture frame facing the preset direction and the end surface of the PIN needle inserting plate facing the preset direction; When the PIN needle limiting assembly is in the second position, the end surface of the connecting plate facing the preset direction protrudes from the end surface of the jig frame facing the preset direction and the end surface of the PIN needle plugging plate facing the preset direction.

5. The PIN needle welding jig according to claim 2, characterized in that: A limiting portion is provided on one side of the jig frame facing the PIN pin plug-in plate or on one side of the PIN pin plug-in plate facing the jig frame, and the limiting portion is used to limit the connecting plate so that the connecting plate can only move back and forth along a preset direction to switch between the target position and the initial position.

6. The PIN needle welding jig according to claim 5, characterized in that: The limiting portion includes two bosses that are arranged in parallel and spaced apart and extend along the preset direction.

7. The PIN welding jig according to any one of claims 2 to 6, characterized in that: A second PIN pin socket is provided on the fixture frame at a position corresponding to the first PIN pin socket.

8. The PIN needle welding jig according to claim 7, characterized in that: The PIN pin welding jig also includes a pressure plate and a pressure block. The pressure plate is connected to the side of the jig frame away from the PIN pin plug-in plate. A through hole is provided on the pressure plate at a position corresponding to the second PIN pin plug-in hole. The pressure block is located in the through hole and is used to press the PIN pin.

9. The PIN needle welding jig according to claim 8, characterized in that: The weight of the compact is 1g-5g.

10. The PIN needle welding jig according to claim 8, characterized in that: At least one hollow portion is provided on the pressing plate.

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