High-precision welding jig for enameled wire pins
By designing high-precision enameled wire pin welding fixtures, using components such as wire hanging platform and feeding fixture to accurately locate and straighten the enameled wire pins, solving the problem that it is difficult to control the size of the solder joints in manual welding and improving welding accuracy and yield rate meet production requirements.
Patent Information
- Application Number
- CN202420783843.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-16
AI Technical Summary
In the prior art, when manually welding enameled wires and electronic component pins, it is difficult to control the size of the solder joints, resulting in poor product quality, especially when the pins or pads of the electronic component are small, the yield rate is too low, and it is difficult to meet production requirements.
A high-precision welding fixture for enameled wire pins is designed, including a wire hanging platform and a feeding fixture. The accurate positioning and straightening of enameled wire pins is achieved through docking holes, installation grooves, wire clamping mechanisms and guide columns, and automatic Welding process to improve welding accuracy.
It realizes accurate positioning of the enameled wire pins of electronic components, improves welding accuracy, improves the welding yield of small pins or pads, meets production requirements, and solves the problem of difficult manual welding.
Smart Images
Figure CN222339875U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding equipment, in particular to a high-precision welding fixture for enameled wire pins. Background Art
[0002] In the prior art, enameled wires are often used to connect different electronic components. Currently, manual welding is usually used to weld the enameled wires and the pins or pads of the electronic components. Manual welding is not only difficult to control the size of the solder joints, resulting in poor product quality, but also when the pins or pads of the electronic components are small, the yield rate of manual welding is too low, making it difficult to meet production requirements. Utility Model Content
[0003] In order to solve the above technical problems, the utility model aims to provide a high-precision welding jig for enameled wire pins, which can realize the automated welding of enameled wires and smaller electronic component pins and has high welding accuracy.
[0004] To achieve the above purpose, the technical solution of the utility model is as follows:
[0005] A high-precision welding fixture for enameled wire pins comprises a wire hanging platform and a feeding clamp.
[0006] The wire hanging platform is provided with a docking hole, a mounting groove, a wire clamping mechanism and a guide column; the docking hole is a through hole for docking with a feeding fixture; the mounting groove is used to fix a first component with an enameled wire pin; the wire clamping mechanism is used to clamp the end of the enameled wire pin to straighten the enameled wire pin; there are several guide columns fixed on the wire hanging platform, which are used to guide the straightened enameled wire pin to cross over the docking hole and position it.
[0007] The loading fixture is arranged in the butt hole, and is used for clamping the second component to be welded, and fixing the welding pad of the second component upward, so that the welding pad is positioned just below the enameled wire pin.
[0008] When the utility model is used, firstly, the first component with the enameled wire pin is installed in the installation groove of the wire hanging platform, the enameled wire pin is passed around the guide column for positioning, and the end of the enameled wire pin is clamped by the wire clamping mechanism and the enameled wire pin is straightened. Then the second component to be welded is fixed on the loading fixture. Then, the wire hanging platform and the loading fixture are installed and positioned, so that the welding pad of the second component installed on the loading fixture enters the docking hole of the wire hanging platform, and the straightened enameled wire pin passes directly above the welding pad of the second component. Finally, the enameled wire pin can be pressed onto the welding pad from top to bottom using a welding device for welding.
[0009] In summary, the utility model can accurately position the enameled wire pins of electronic components, improve welding accuracy, and solve the problem that when the pins or pads of electronic components are small, the welding yield is too low and it is difficult to meet production requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the structure of a high-precision welding fixture for enameled wire pins in an embodiment of the utility model;
[0011] Figure 2 This is a top view schematic diagram of the connection between the loading fixture and the wire hanging platform according to an embodiment of the utility model;
[0012] Figure 3 This is a structural schematic diagram of a wire hanging platform according to an embodiment of the utility model;
[0013] Figure 4 It is a schematic diagram of the installation of the loading fixture on the moving mechanism according to an embodiment of the utility model.
[0014] Among them, 1: wire hanging platform; 2: feeding fixture; 3: docking hole; 4: mounting groove; 5: wire clamping mechanism; 6: guide column; 7: enameled wire pin; 8: first component; 9: second component; 10: wire clamping column; 11: thrust spring; 12: wire clamping head; 13: retaining ring; 14: clamp; 15: clamp driving assembly; 16: guide rod. DETAILED DESCRIPTION
[0015] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.
[0018] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0019] like Figure 1 As shown, an embodiment of the utility model provides a high-precision welding fixture for enameled wire pins, including a wire hanging platform 1 and a feeding clamp 2.
[0020] Among them, the wire hanging platform 1 and the feeding fixture 2 are respectively installed with the first component 8 and the second component 9 to be welded together, wherein the first component 8 with the enameled wire pin 7 is installed on the wire hanging platform 1, and the second component 9 with the soldering pad is fixed on the feeding fixture 2. The wire hanging platform 1 is preferably detachably mounted on the frame of the welding machine to position the enameled wire pin 7 of the first component 8. The feeding fixture 2 clamps the second component 9 and positions the soldering pad of the second component 9, and finally, through the positional relationship between the wire hanging platform 1 and the feeding fixture 2, the positioned enameled wire pin 7 is located directly above the soldering pad. This embodiment has a high positioning accuracy, which is convenient for the subsequent use of welding devices or manual welding.
[0021] The wire hanging platform 1 is provided with a docking hole 3, a mounting groove 4, a wire clamping mechanism 5 and a guide column 6; the docking hole 3 is a through hole for docking with the feeding fixture 2; the mounting groove 4 is used to fix the first component 8 with the enameled wire pin 7; the wire clamping mechanism 5 is used to clamp the end of the enameled wire pin 7 to straighten the enameled wire pin 7; there are several guide columns 6, which are fixed on the wire hanging platform 1 and are used to guide the straightened enameled wire pin 7 to cross over the docking hole 3 and position it.
[0022] Among them, the mounting groove 4 can be designed according to the shape of the first element 8, and the first element 8 can be temporarily fixed to facilitate the subsequent guidance of the enameled wire pin 7. The wire clamping mechanism 5 can be any mechanism that can clamp the enameled wire pin 7 and straighten it. In order to ensure the accuracy of welding, the enameled wire pin 7 needs to be straightened into a straight line and maintain a stable state during the welding process. The guide column 6 is used to guide the direction of the enameled wire pin 7 between the mounting groove 4 and the wire clamping mechanism 5, so that the enameled wire pin 7 passes over the docking hole 3 and locates its position in the docking hole 3. The installation position of the guide column 6 on the wire hanging platform 1 can be designed according to the specific structure of the first element 8 and the second element 9 and the relative position during welding.
[0023] like Figure 2 As shown, the loading fixture 2 is arranged in the docking hole 3, for clamping the second component 9 to be welded, and fixing the pad of the second component 9 upward, so that the pad is positioned directly below the enameled wire pin 7.
[0024] Among them, the part of the feeding fixture 2 that clamps the second component 9 is set in the docking hole 3. The structure of the feeding fixture 2 can be designed according to the shape of the second component 9. The shape and size of the docking hole 3 can also be designed according to the shape of the part of the feeding fixture 2 that enters the docking hole 3, so that the pad of the second component 9 can enter the position where the docking hole 3 is located and be positioned directly below the enameled wire pin 7. The pad of the second component 9 is positioned directly below the enameled wire pin 7 of the first component 8. During welding, the welding head directly presses the enameled wire pin 7 downward to the pad, and the welding step can be completed without manual positioning, which can improve the accuracy of welding and ensure the welding quality.
[0025] When the utility model is used, firstly, the first component 8 with the enameled wire pin 7 is installed in the installation groove 4 of the wire hanging platform 1, the enameled wire pin 7 is positioned around the guide column 6, and the end of the enameled wire pin 7 is clamped by the wire clamping mechanism 5 and the enameled wire pin 7 is straightened. Then the second component 9 to be welded is fixed on the loading fixture 2. Then, the wire hanging platform 1 and the loading fixture 2 are installed and positioned, so that the pad of the second component 9 installed on the loading fixture 2 enters the docking hole 3 of the wire hanging platform 1, and the straightened enameled wire pin 7 crosses over the position of the pad of the second component 9. Finally, the enameled wire pin 7 can be pressed onto the pad from top to bottom using a welding device for welding.
[0026] In summary, the utility model can accurately position the enameled wire pins 7 and pads of electronic components, improve welding accuracy, and solve the problem that when the pins or pads of electronic components are small, the welding yield is too low and it is difficult to meet production requirements.
[0027] In this embodiment, the docking hole 3 is in the shape of an elongated strip, the mounting groove 4 is arranged on one side of the long side of the docking hole 3 , and the wire clamping mechanism 5 is arranged on the other side of the long side of the docking hole 3 .
[0028] Among them, the long strip-shaped docking hole 3 can facilitate the loading fixture 2 to move in the long side direction, perform secondary positioning, and ensure the positioning accuracy of the pad and the enameled wire pin 7. The mounting groove 4 and the wire clamping mechanism 5 are arranged on both sides of the long side of the docking hole 3, so that the enameled wire pin 7 can cross the docking hole 3 along the short side direction of the docking hole 3, and only the part of the enameled wire pin 7 above the docking hole 3 needs to be positioned. Therefore, this embodiment can reduce the length of the enameled wire pin 7 that needs to be positioned, thereby reducing the difficulty of positioning the enameled wire pin 7.
[0029] In this embodiment, the guide posts 6 are arranged in pairs on both sides of the long side of the docking hole 3 to guide the enameled wire pins 7 to cross the docking hole 3 and be positioned directly above the pad of the second component 9 .
[0030] Among them, two points can determine a straight line, and a pair of guide columns 6 can be used to determine the path of the enameled wire pin 7 on the plane where the wire hanging platform 1 is located. The two guide columns 6 are respectively arranged on both sides of the long side of the docking hole 3, and can determine that the enameled wire pin 7 crosses over the docking hole 3. The pad of the second component 9 can be positioned to the position where the docking hole 3 is located by the loading fixture 2, so that the enameled wire pin 7 can be guided by the guide column 6 to cross over the pad of the second component 9. A pair of guide columns 6 can guide one enameled wire pin 7 or two enameled wire pins 7. When guiding two enameled wire pins 7, the spacing between the two enameled wire pins 7 can be equal to the diameter of the guide column 6. Therefore, the diameter of the guide column 6 can be determined according to the number and spacing of the pads on the second component 9.
[0031] In this embodiment, the guide column 6 is a stepped shaft, and the distance from the shoulder of the stepped shaft to the upper surface of the wire hanging platform 1 is a preset distance, which is used to determine the height from the enameled wire pin 7 to the upper surface of the wire hanging platform 1.
[0032] Among them, the loading fixture 2 lifts the second component 9 upward, so that the pad of the second component 9 is higher than the plane where the upper surface of the hanging wire platform 1 is located, and the pad of the second component 9 is further close to the enameled wire pin 7. Therefore, it is necessary to raise the position of the enameled wire pin 7 above the docking hole 3 by a certain distance, so that the loading fixture 2 can adjust the position of the second component 9, and can determine the positioning of the enameled wire pin 7 in the vertical direction, thereby improving the controllability of the welding process. In this embodiment, the enameled wire pin 7 can be hung on the shoulder of the guide column 6, thereby determining the height of the enameled wire pin 7 from the upper surface of the hanging wire platform 1 to achieve the above functions.
[0033] In this embodiment, the portion of the enameled wire pin 7 that crosses the docking hole 3 is perpendicular to the long side of the docking hole 3 .
[0034] Among them, the enameled wire pin 7 passes over the long strip-shaped docking hole 3. The enameled wire pin 7 is perpendicular to the long side and can minimize the length of the enameled wire pin 7 crossing over the docking hole 3, thereby reducing the distance between the two guide columns 6 and reducing the positioning error caused by the bending of the enameled wire pin 7.
[0035] In this embodiment, a moving mechanism for driving the loading fixture 2 to move along the long side of the docking hole 3 is installed at the bottom of the loading fixture 2 .
[0036] The enameled wire pin 7 is perpendicular to the long side of the docking hole 3, and the loading fixture 2 is driven to move along the long side, which can ensure that the pad of the second component 9 can be aligned with the enameled wire pin 7, thereby further reducing the positioning error and improving the welding quality. The moving mechanism is preferably an electric cylinder with high moving accuracy, and the moving mechanism can also be a multi-axis moving mechanism to further increase the motion range of the loading fixture 2.
[0037] like Figure 3 As shown, in this embodiment, the wire clamping mechanism 5 includes a wire clamping column 10 and a thrust spring 11, and a through hole for installing the wire clamping column 10 is opened on the wire hanging platform 1; the wire clamping column 10 is provided with a cylindrical wire clamping head 12 at one end above the wire hanging platform 1, and a retaining ring 13 is provided below the wire hanging platform 1, and the thrust spring 11 is sleeved between the retaining ring 13 and the bottom surface of the wire hanging platform 1, and the thrust spring 11 is used to push the annular bottom surface of the wire clamping head 12 to fit with the upper surface of the wire hanging platform 1 and generate pressure, thereby clamping the enameled wire pin 7.
[0038] Among them, a through hole for installing the clamping column 10 can be provided on the wire hanging platform 1, and the through hole is in clearance with the clamping column 10, and the clamping column 10 can slide up and down in the through hole. The thrust spring 11 is arranged at the bottom of the wire hanging platform 1, which can make the cylindrical clamping head 12 fit with the upper surface of the wire hanging platform 1 and provide a certain pressure, so that the enameled wire pin 7 can be straightened.
[0039] In this embodiment, an annular friction pad is provided at the bottom of the thread clamping head 12, and chamfers are provided at the inner and outer rings of the friction pad.
[0040] The friction gasket can be sleeved on the clamping column 10 and pasted on the bottom of the clamping head 12. The friction gasket can be made of any material that can increase friction, preferably a rubber gasket. Chamfers are set on the inner and outer rings of the friction gasket, so that the working surface of the friction gasket can fully contact with the wire hanging platform 1, improve the clamping force of the friction gasket on the enameled wire pin 7, and prevent the enameled wire pin 7 from being stuck in the gap between the clamping column 10 and the through hole, causing damage to the enameled wire pin 7.
[0041] In this embodiment, the installation groove 4 is a countersunk hole and is clearance-matched with the first component 8. The depth of the installation groove 4 is a preset depth, which is used to expose the enameled wire pin 7 above the wire hanging platform 1 when the first component 8 is installed.
[0042] Among them, the mounting groove 4 can be a countersunk hole with a clearance fit with the first element 8, and a clamping mechanism can be set to fix the first element 8. The depth of the mounting groove 4 is designed according to the structure of the first element 8, so that when the first element 8 is installed in the mounting groove 4, the wire end of the enameled wire pin 7 is exposed above the wire hanging platform 1, so that the enameled wire pin 7 can be conveniently guided and fixed. The mounting groove 4 and the first element 8 have a clearance fit, which can facilitate installation and disassembly and improve work efficiency. In this embodiment, the first element 8 is rod-shaped, and the mounting groove 4 is hole-shaped. When in use, the first element 8 is vertically inserted into the mounting groove 4, and the end with the wire end of the enameled wire pin 7 is facing downward to complete the installation.
[0043] like Figure 4 As shown, in this embodiment, the loading clamp 2 includes a pair of raised clamps 14 and a clamp driving assembly 15, and the total length of the two clamps 14 when clamped is less than the length of the docking hole 3; a guide rod 16 is installed at the bottom of the two clamps 14, and the clamp driving assembly 15 is used to drive the clamps 14 to open and close along the guide rod 16.
[0044] Among them, the length of the two clamps 14 when clamping the second element 9 is less than the length of the docking hole 3, so that the clamps 14 can drive the second element 9 to move and fine-tune along the length direction in the docking hole 3, thereby improving the positioning accuracy of the position between the enameled wire pin 7 and the pad. In this embodiment, the clamps 14 and the clamp driving assembly 15 are installed on a substrate, and a bracket for mounting the clamps 14 is provided on the substrate. The bracket has two vertical plates, and a fixed block is provided at the bottom of the clamp 14. There are two guide rods 16, and the two guide rods 16 are arranged in parallel and pass through the fixed block and the two vertical plates, so that the clamp 14 can move between the two vertical plates along the guide rods 16. The guide rod 16 is fixed to the fixed block of the clamp 14, and the guide rod 16 moves together with the clamp 14. The guide rod 16 passes through the fixed block to improve the stability of the clamp 14. The clamp driving assembly 15 can be any driving mechanism such as a cylinder, an electric cylinder or an electric push rod that can drive the two clamps 14 to move along the guide rod 16. In this embodiment, the clamp driving assembly 15 realizes the opening and closing of the clamp 14 by pushing the guide rod 16 .
[0045] In this embodiment, a mounting bracket is further included, on which a mounting plate is horizontally arranged, and on which a clamping groove for hanging the wire hanging platform 1 above the feeding fixture 2 is opened.
[0046] The wire hanging platform 1 is detachably installed in the card slot, and the mounting plate is mounted on the frame through the side columns and ribs, so that the mounting plate forms a cantilever structure, which enables the wire hanging platform 1 to be suspended in the air, facilitating the loading of the loading fixture 2. After the installation of the first component 8 and the hanging of the enameled wire pin 7 are completed, the wire hanging platform 1 needs to be placed in the card slot of the mounting plate.
[0047] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A high-precision welding fixture for enameled wire pins, characterized in that: It comprises a wire hanging platform (1) and a loading fixture (2); The wire hanging platform (1) is provided with a docking hole (3), a mounting groove (4), a wire clamping mechanism (5) and a guide column (6); the docking hole (3) is a through hole, used for docking with the feeding fixture (2); the mounting groove (4) is used for fixing a first component (8) having an enameled wire pin (7); the wire clamping mechanism (5) is used for clamping the end of the enameled wire pin (7) to straighten the enameled wire pin (7); a plurality of guide columns (6) are fixed on the wire hanging platform (1) and are used for guiding the straightened enameled wire pin (7) to cross over the docking hole (3) and to position it; The loading fixture (2) is arranged in the docking hole (3) and is used to clamp the second component (9) to be welded, and fix the welding pad of the second component (9) upward so that the welding pad is positioned directly below the enameled wire pin (7).
2. The high-precision welding jig for enameled wire pins according to claim 1, characterized in that: The docking hole (3) is in the shape of an elongated strip, the mounting groove (4) is arranged on one side of the long side of the docking hole (3), and the wire clamping mechanism (5) is arranged on the other side of the long side of the docking hole (3).
3. The high-precision welding jig for enameled wire pins according to claim 1, characterized in that: The guide columns (6) are arranged in pairs on both sides of the long side of the docking hole (3) to guide the enameled wire pin (7) to cross the docking hole (3) and be positioned directly above the soldering pad of the second component (9).
4. The high-precision welding jig for enameled wire pins according to claim 3 is characterized in that: The guide column (6) is a stepped shaft, and the distance from the shoulder of the stepped shaft to the upper surface of the wire hanging platform (1) is a preset distance, and the preset distance is used to determine the height from the enameled wire pin (7) to the upper surface of the wire hanging platform (1).
5. The high-precision welding jig for enameled wire pins according to claim 3, characterized in that: The portion of the enameled wire pin (7) that spans the docking hole (3) is perpendicular to the long side of the docking hole (3).
6. The high-precision welding jig for enameled wire pins according to claim 3, characterized in that: A moving mechanism is installed at the bottom of the loading fixture (2) to drive the loading fixture (2) to move along the long side of the docking hole (3).
7. The high-precision welding jig for enameled wire pins according to claim 1, characterized in that: The wire clamping mechanism (5) comprises a wire clamping column (10) and a thrust spring (11); a through hole for mounting the wire clamping column (10) is provided on the wire hanging platform (1); a cylindrical wire clamping head (12) is provided at one end of the wire clamping column (10) above the wire hanging platform (1); a retaining ring (13) is provided below the wire hanging platform (1); and the thrust spring (11) is sleeved between the retaining ring (13) and the bottom surface of the wire hanging platform (1).
8. The high-precision welding jig for enameled wire pins according to claim 1, characterized in that: The installation groove (4) is a countersunk hole and is clearance-matched with the first component (8); the depth of the installation groove (4) is a preset depth, and is used to expose the enameled wire pin (7) above the wire hanging platform (1) when the first component (8) is installed.
9. The high-precision welding jig for enameled wire pins according to claim 1, characterized in that: The loading clamp (2) comprises a pair of protruding clamps (14) and a clamp drive assembly (15); the total length of the two clamps (14) when clamped is less than the length of the docking hole (3); guide rods (16) are installed at the bottom of the two clamps (14), and the clamp drive assembly (15) is used to drive the clamps (14) to open and close along the guide rod (16).
10. The high-precision welding jig for enameled wire pins according to claim 1, characterized in that: It also comprises a mounting bracket, on which a mounting plate is horizontally arranged, and on which a clamping groove is provided, and the clamping groove is used to suspend the wire hanging platform (1) above the loading fixture (2).