A welding pin jig for an automatic spot welding machine

Abstract

This application belongs to the field of spot welding machine fixtures, and relates to a soldering pin fixture for an automatic spot welding machine, comprising: a fixture base, a PCB board on the top of the fixture base, an L-pin interchangeable insert installed inside the fixture base, and a clamping component disposed on the top of the fixture base for clamping and fixing the PCB board on the fixture base. The clamping component includes: a pressure block limiting panel, a groove, and a movable pressure block, and a pop-out component disposed inside the L-pin interchangeable insert. The technical solution provided by this application can clamp and fix the PCB board through the clamping component, ensuring that the PCB board is stably placed on the top of the fixture base, preventing the PCB board from shifting, improving the welding quality, and preventing deformation and warping of the PCB board during welding, thus avoiding damage to the PCB board. The pop-out component also lifts and pops the PCB board out, preventing the PCB board from being tightly adhered to the pressure block limiting panel, creating a gap between the PCB board and the pressure block limiting panel, facilitating the removal of the PCB board after welding.

Description

Technical Field

[0001] This application relates to the field of spot welding machine fixture technology, and more specifically, to a welding pin fixture for an automatic spot welding machine. Background Technology

[0002] A PIN soldering fixture is a tooling fixture specifically designed for automated soldering processes. It is mainly used to fix and precisely position solder pins to ensure that the pins can accurately contact the workpiece to be soldered and complete the soldering operation during automatic spot welding. This fixture is of great significance for improving soldering accuracy, ensuring soldering quality, and increasing production efficiency. Currently, mass-produced PIN soldering machines can only solder 5-6 PINs. Increasing the number of PINs will cause the board to deform and warp, and it is not easy to remove the PINs after soldering, which also restricts PCB panelization. Utility Model Content

[0003] The technical problem to be solved by the embodiments of this application is that the existing mass-produced PIN soldering machines can only solder 5-6 PINs. Increasing the number of PINs will cause the board to deform and warp, and it is not easy to remove the board after soldering, which also restricts the PCB panelization.

[0004] To address the aforementioned technical problems, this application provides a welding pin fixture for an automatic spot welding machine, employing the following technical solution: A welding pin fixture for an automatic spot welding machine, comprising: A fixture base, the top of which is provided with a PCB board, and an L-pin interchangeable insert is installed inside the fixture base; A clamping component disposed on the top of the fixture base is used to clamp and fix the PCB board on the fixture base. The clamping component includes: a clamping block limiting panel, a groove, and a movable clamping block. The pop-out component, located inside the L-pin interchangeable insert, is used to pop out and remove the PCB board. The pop-out component includes: a movable cavity, a spring support rod, a return spring, and a pressure cylinder.

[0005] Furthermore, a pressure block limiting panel is installed on the top of the fixture base, the PCB board is placed on the top of the pressure block limiting panel, a groove is opened inside the pressure block limiting panel, the groove fits with the L-pin interchangeable insert, and a movable pressure block that is used in conjunction with the pressure block limiting panel is movably connected to the top of the fixture base.

[0006] Furthermore, the L-needle interchangeable insert has movable cavities on both sides, and a spring support rod is installed inside each movable cavity. A return spring is sleeved on the spring support rod, and a pressure cylinder connected to the return spring is provided outside the spring support rod.

[0007] Furthermore, an L-limiting pin is installed on one side of the top of the L-pin interchangeable insert.

[0008] Furthermore, a spot welding groove is formed on the top of the movable pressure block, and the spot welding groove is directly opposite the position of the PCB board.

[0009] Furthermore, fixing blocks are fixedly installed on both sides of the back of the fixture base by bolts. A rotating groove is provided on the top of the fixing block. Hinges are installed on both sides of the bottom of the movable pressure block. The hinges are rotatably connected to the rotating groove by a rotating shaft.

[0010] Furthermore, a gap is left between the pressure cylinder and the movable cavity, and the pressure cylinder is made of stainless steel.

[0011] Furthermore, a protective head is installed at the top of the pressure cylinder, and the protective head is made of rubber material.

[0012] Furthermore, a limiting block is installed at the bottom end of the spring support rod, and the diameter of the limiting block is larger than the diameter of the return spring.

[0013] Furthermore, the outer end of the movable pressure block is provided with a protruding structure.

[0014] Compared with the prior art, the embodiments of this application have the following main advantages: First, the clamping components can clamp and fix the PCB board, ensuring that the PCB board is stably placed on the top of the fixture base, preventing the PCB board from shifting, improving the welding quality, and also preventing the PCB board from deforming and warping during the welding process, thus avoiding damage to the PCB board.

[0015] Secondly, the PCB board is lifted and popped out by the pop-out component, which avoids the PCB board being tightly attached to the pressure block limiting panel, so that there is a gap between the PCB board and the pressure block limiting panel, making it easier to remove the PCB board and take it out after soldering. Attached Figure Description

[0016] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0019] Figure 3This is a schematic diagram of the back structure of the fixture base of this utility model.

[0020] Figure 4 This is a bottom view of the fixture base of this utility model.

[0021] Figure 5 This is a schematic diagram of the movable pressure block structure of this utility model.

[0022] Figure 6 This is a cross-sectional schematic diagram of the fixture base of this utility model.

[0023] Figure 7 For the present utility model Figure 6 Enlarged diagram of point A in the middle.

[0024] Reference numerals: 1. Fixture base; 101. PCB board; 102. L-pin interchangeable insert; 103. L-limit pin; 2. Pressure block limiting panel; 201. Groove; 202. Movable pressure block; 203. Spot welding groove; 204. Fixing block; 205. Rotating groove; 206. Hinge joint; 3. Movable cavity; 301. Spring support rod; 302. Return spring; 303. Pressure cylinder; 304. Protective head; 305. Limiting block. Detailed Implementation

[0025] 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 application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0026] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0027] This application provides a soldering pin fixture for an automatic spot welding machine, including: a fixture base 1, a PCB board 101 on the top of the fixture base 1, an L-pin interchangeable insert 102 installed inside the fixture base 1, a clamping assembly disposed on the top of the fixture base 1 for clamping and fixing the PCB board 101 on the fixture base 1, the clamping assembly including: a pressure block limiting panel 2, a groove 201 and a movable pressure block 202, and a pop-out assembly disposed inside the L-pin interchangeable insert 102 for popping out and removing the PCB board 101, the pop-out assembly including: a movable cavity 3, a spring support rod 301, a return spring 302 and a pressure cylinder 303.

[0028] The PCB board 101 is pressed and fixed by the clamping component, ensuring that the PCB board 101 is stably placed on the top of the fixture base 1, preventing the PCB board 101 from shifting, improving the welding quality, and also preventing the PCB board 101 from deforming and warping during the welding process, thus avoiding damage to the PCB board 101. In conjunction with the pop-out component, the PCB board 101 can be lifted and popped out, preventing the PCB board 101 from being tightly attached to the pressure block limiting panel 2, so that there is a gap between the PCB board 101 and the pressure block limiting panel 2, making it easy to remove the PCB board 101 after welding.

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0030] Embodiment 1 of the welding pin fixture for the automatic spot welding machine of this application This application provides an automatic spot welding machine soldering pin fixture, comprising: a fixture base 1, a PCB board 101 on the top of the fixture base 1, an L-pin interchangeable insert 102 installed inside the fixture base 1, a clamping assembly disposed on the top of the fixture base 1 for clamping and fixing the PCB board 101 on the fixture base 1, the clamping assembly comprising: a pressure block limiting panel 2, a groove 201 and a movable pressure block 202, and a pop-out assembly disposed inside the L-pin interchangeable insert 102 for popping out and removing the PCB board 101, the pop-out assembly comprising: a movable cavity 3, a spring support rod 301, a return spring 302 and a pressure cylinder 303.

[0031] The fixture base 1 has a pressure block limiting panel 2 installed on its top. The PCB board 101 is placed on the top of the pressure block limiting panel 2. The pressure block limiting panel 2 has a groove 201 inside. The groove 201 fits into the L-pin interchangeable insert 102. The top of the fixture base 1 is movably connected to a movable pressure block 202 that is used in conjunction with the pressure block limiting panel 2. The top of the movable pressure block 202 has a spot solder groove 203, which is directly opposite to the position of the PCB board 101.

[0032] When the jig base 1 is in use, the pressure block limiting panel 2 is installed on the top of the jig base 1, so that the groove 201 inside the pressure block limiting panel 2 just matches the L-pin interchangeable insert 102 protruding from the top of the jig base 1 (e.g. Figure 1 As shown), the top of the L-pin interchangeable insert 102 is flush with the groove 201, which facilitates the flat placement of the PCB board 101. When soldering the PCB board 101, the PCB board 101 is placed on top of the pressure block limiting panel 2, so that the PCB board 101 and the L-pin interchangeable insert 102 are in contact (as shown). Figure 1 (As shown), then the movable pressure block 202 is flipped down and placed on top of the pressure block limiting panel 2. The movable pressure block 202 presses and fixes the PCB board 101, ensuring that the PCB board 101 is stably placed on top of the fixture base 1, preventing the PCB board 101 from shifting, improving the welding quality, and also preventing the PCB board 101 from deforming and warping during the welding process, thus avoiding damage to the PCB board 101.

[0033] Among them, an L-pin interchangeable insert 102 is equipped with an L-limit pin 103 on one side of its top. When the PCB board 101 is placed on the top of the pressure block limiting panel 2, the hole on one side of the top of the PCB board 101 will be inserted into the L-limit pin 103. The L-limit pin 103 can be used to position the PCB board 101 to ensure that the PCB board 101 is directly opposite the spot welding groove 203 on the top of the movable pressure block 202. When the movable pressure block 202 presses the PCB board 101 tightly, the welding part on the PCB board 101 can be exposed at the spot welding groove 203, which facilitates the welding operation of the PCB board 101.

[0034] The fixture base 1 is installed on the automatic spot soldering PIN machine and is used in conjunction with the automatic spot soldering PIN machine. The spot soldering PIN machine is an automated device specifically used to solder PIN pins to circuit boards or other electronic components. It is a mature technology that is available on the market. Its working principle and steps are well known to those skilled in the art, so they will not be described in detail. This application mainly addresses the stability problem of the PCB board 101 placed on the fixture base 1 and the problem of picking up the PCB board 101.

[0035] Example 2 Based on Embodiment 1, fixing blocks 204 are fixedly installed on both sides of the back of the fixture base 1 by bolts. The top of the fixing block 204 is provided with a rotating groove 205. The bottom sides of the movable pressure block 202 are provided with hinge joints 206. The hinge joints 206 and the rotating groove 205 are rotatably connected by a rotating shaft.

[0036] When the movable pressure block 202 is in use, the movable pressure block 202 is installed on the rotating groove 205 on the top of the fixed block 204 via the hinge joint 206 and the rotating groove 205, so that the hinge joint 206 and the rotating groove 205 can rotate flexibly, which makes it easy for the movable pressure block 202 to open and close up and down at the top of the pressure block limiting panel 2, and to press and weld the PCB board 101 placed on the pressure block limiting panel 2.

[0037] The movable pressure block 202 has a protruding structure at its outer end. During use, the movable pressure block 202 has a protruding structure at its outer end, which makes it easy to grasp and apply force to the movable pressure block 202 by hand, and to easily grasp the movable pressure block 202 to close it downwards or to grasp it to open it upwards.

[0038] Example 3 Based on Embodiment 1, the L-needle interchangeable insert 102 has movable cavities 3 on both sides inside, and spring support rods 301 are installed inside each movable cavity 3. A return spring 302 is sleeved on the spring support rod 301, and a pressure cylinder 303 connected to the return spring 302 is provided outside the spring support rod 301.

[0039] When the PCB board 101 is placed on the pressure block limiting panel 2 and is in contact with the L-pin interchangeable insert 102, the pressure cylinder 303 is protruding at its top inside the movable cavity 3 (e.g., Figure 6 As shown), the PCB board 101 will contact the top of the pressure cylinder 303. When the movable pressure block 202 presses and fixes the PCB board 101 on the pressure block limiting panel 2, the PCB board 101 will press the pressure cylinder 303 and move downward into the movable cavity 3, so that the pressure cylinder 303 will press the reset spring 302, thereby pressing the protruding part of the pressure cylinder 303 into the movable cavity 3, so that the PCB board 101 and the L-pin interchangeable insert 102 are placed flat, ensuring that the PCB board 101 is placed stably and avoiding the PCB board 101 shaking and affecting the soldering quality.

[0040] After the PCB board 101 is soldered, the movable pressure block 202 is grasped by hand and flipped upward to open. At this time, the movable pressure block 202 has no clamping force on the PCB board 101, that is, the pressure cylinder 303 will not press the return spring 302. During the process of the return spring 302 restoring its deformation, a rebound force will be generated. The rebound force can push the pressure cylinder 303 out of the movable cavity 3 again, thereby lifting and popping the PCB board 101 out. This avoids the PCB board 101 from being tightly attached to the pressure block limiting panel 2, so that there is a gap between the PCB board 101 and the pressure block limiting panel 2, making it easy to remove the PCB board 101 after soldering.

[0041] There is a gap between the pressure cylinder 303 and the movable cavity 3. The pressure cylinder 303 is made of stainless steel. When the pressure cylinder 303 is in use, the gap between the pressure cylinder 303 and the movable cavity 3 allows the pressure cylinder 303 to move up and down inside the movable cavity 3. The fact that the pressure cylinder 303 is made of stainless steel gives it good rigidity and prevents it from being easily damaged during frequent use.

[0042] The pressure cylinder 303 is equipped with a protective head 304 at its top. The protective head 304 is made of rubber material. When the PCB board 101 comes into contact with the top of the pressure cylinder 303, the protective head 304 at the top of the pressure cylinder 303 is made of rubber material and has a certain soft layer protection function to prevent the PCB board 101 from being crushed.

[0043] Among them, a limiting block 305 is installed at the bottom of the spring support rod 301. The diameter of the limiting block 305 is larger than the diameter of the reset spring 302. When the reset spring 302 is used on the spring support rod 301, the limiting block 305 can limit and support the reset spring 302.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A welding PIN jig for an automatic spot welder, characterized by, include: A fixture base (1) is provided with a PCB board (101) on the top of the fixture base (1), and an L-pin interchangeable insert (102) is installed inside the fixture base (1). The clamping assembly disposed on the top of the fixture base (1) is used to clamp and fix the PCB board (101) on the fixture base (1). The clamping assembly includes: a clamping block limiting panel (2), a groove (201) and a movable clamping block (202). The pop-out component, located inside the L-pin interchangeable insert (102), is used to pop out and remove the PCB board (101). The pop-out component includes: a movable cavity (3), a spring support rod (301), a reset spring (302), and a pressure cylinder (303).

2. The welding PIN jig for an automatic spot welder according to claim 1, characterized by, The jig base (1) is equipped with a pressure block limiting panel (2) on top. The PCB board (101) is placed on top of the pressure block limiting panel (2). The pressure block limiting panel (2) has a groove (201) inside. The groove (201) fits into the L-pin interchangeable insert (102). The jig base (1) is movably connected to a movable pressure block (202) that is used in conjunction with the pressure block limiting panel (2).

3. The welding PIN jig for an automatic spot welder according to claim 1, characterized by, The L-needle interchangeable insert (102) has movable cavities (3) on both sides inside. Each movable cavity (3) is equipped with a spring support rod (301). A return spring (302) is sleeved on the spring support rod (301). A pressure cylinder (303) connected to the return spring (302) is provided outside the spring support rod (301).

4. The welding PIN jig for an automatic spot welder according to claim 1, characterized by, An L-limiting pin (103) is installed on one side of the top of the L-pin interchangeable insert (102).

5. The welding PIN jig for an automatic spot welder according to claim 2, characterized by, The movable pressure block (202) has a spot welding groove (203) on its top, and the spot welding groove (203) is directly opposite to the position of the PCB board (101).

6. The welding PIN jig for an automatic spot welder according to claim 2, characterized by, The fixture base (1) has fixing blocks (204) fixed on both sides of the back side by bolts. The top of the fixing block (204) has a rotating groove (205). The bottom sides of the movable pressure block (202) are equipped with hinge joints (206). The hinge joints (206) and the rotating grooves (205) are rotatably connected by a rotating shaft.

7. The welding PIN jig for an automatic spot welder according to claim 3, characterized by, There is a gap between the pressure cylinder (303) and the movable cavity (3), and the pressure cylinder (303) is made of stainless steel.

8. The welding PIN jig for an automatic spot welder according to claim 3, characterized by, The top of the pressure cylinder (303) is equipped with a protective head (304), which is made of rubber material.

9. The welding PIN jig for an automatic spot welder according to claim 3, characterized by, A limiting block (305) is installed at the bottom end of the spring support rod (301), and the diameter of the limiting block (305) is larger than the diameter of the reset spring (302).

10. The welding PIN jig for an automatic spot welder according to claim 2, characterized by, The outer end of the movable pressure block (202) is provided with a protruding structure.

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