Splice strip welding clamp

Abstract

The utility model relates to the technical field of resistor machining, in particular to a splicing belt welding clamp. According to the utility model, the limiting mechanism is used for guiding and conveying the resistor splicing belt entering the positioning mechanism, and the guiding assembly and the positioning assembly on the positioning frame are used for fixing and adjusting the position of the resistor splicing belt in the transverse and vertical directions; when the resistor splicing belt moves to a welding area defined by the two material blocking plates and the positioning assembly, welding laser enters the resistor splicing belt from a welding opening to conduct splicing belt welding, the material blocking plates on the two sides of the welding area can block welding slag generated during welding, splashing of the welding slag is effectively controlled, the positioning frame is covered with the sealing cover, and the welding efficiency is improved. The welding port leaks the resistor splicing belt in the welding area, and the sealing cover is arranged during welding, so that the space of the welding area is in a relatively sealed state, and at the moment, the injection of protective gas can be carried out, and the welding effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of resistance processing technology, and specifically to a splicing welding fixture. Background Technology

[0002] Existing methods for manufacturing resistor strips typically involve simultaneously electron beam welding the resistor strip and electrode strip to form a metal strip used for manufacturing metal resistor elements. The resistor strip and electrode strip are usually manually transported to the welding station, often resulting in gaps or protrusions in the metal strip, requiring secondary positioning and impacting the processing cycle. Furthermore, during high-speed continuous electron beam welding of trimetallic alloy resistor strips, the high welding temperature easily causes slag spatter, affecting processing safety. Additionally, while shielding gas is typically introduced for better welding of the resistor strips, the open processing environment leads to significant gas waste and increased costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a strip welding fixture that can fix and adjust the position of the resistance strip in the horizontal and vertical directions, effectively control the spatter of welding slag, and ensure the welding effect.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A splicing welding fixture, comprising:

[0006] The fixture base is equipped with a welding station;

[0007] A positioning mechanism is provided on the welding station. The positioning mechanism includes a positioning frame, a guide component, and a positioning component. The positioning frame is provided on the fixture base. The guide component and the positioning component are alternately provided on the positioning frame. The guide component and the positioning component are used to transfer and position the resistor splicing strip in the horizontal and vertical directions.

[0008] A limiting mechanism is provided on the fixture base. The limiting mechanism is positioned opposite to the feeding end of the positioning mechanism. The limiting mechanism is used to guide and position the resistor strip entering the positioning mechanism.

[0009] A welding mechanism is provided on the positioning frame. The welding mechanism includes a sealing cover and two baffles. The baffles are arranged between adjacent guide components and positioning components, so that the two baffles and the positioning components surround the resistance band to form a welding area. The sealing cover is provided on the positioning frame and has a welding port. The welding port is arranged opposite to the welding area.

[0010] In one embodiment of the present invention, the limiting mechanism includes a limiting frame, a limiting roller is mounted on the limiting frame, and two limiting blocks are mounted on the limiting roller, forming a transmission channel for transmitting resistance splicing tape between the two limiting blocks.

[0011] In one embodiment of this utility model, the limiting block includes a limiting plate, and a clamp is provided on the limiting plate. The limiting plate is fixedly connected to the limiting roller through the clamp.

[0012] In one embodiment of this utility model, the baffle plate includes a top plate and a bottom plate, both of which are mounted on the positioning frame. A conveying gap for the resistance band to pass through is provided between the top plate and the bottom plate. An inclined plate is provided on the bottom plate, with the end of the inclined plate inclined toward the guide assembly. The top plate and the bottom plate are mounted on the same vertical plane.

[0013] In one embodiment of this utility model, the positioning frame is provided with a slot that matches the base plate, and the opening of the slot is provided with an inclined groove that matches the inclined plate.

[0014] In one embodiment of the present invention, the positioning frame is provided with a sliding groove that matches the top plate, both ends of the top plate are engaged in the sliding groove, a baffle is provided on the top plate, the baffle and the top plate form a protective cover covering the guide assembly, and the baffle abuts against the sealing cover.

[0015] In one embodiment of the present invention, the guiding assembly includes two guiding shafts, which are rotatably mounted on the positioning frame. Guide wheel sleeves are provided on the guiding shafts, and a guiding channel for transmitting resistor splicing tape is formed between the guide wheel sleeves on the two guiding shafts.

[0016] In one embodiment of this utility model, the positioning component includes two adjustment frames, a guide optical shaft is provided on the positioning frame, the adjustment frame is slidably mounted on the guide optical shaft, a guide frame is provided on the adjustment frame, a guide roller is provided on the guide frame, a welding channel for transmitting resistance splicing tape is formed between the two guide rollers, and a bolt is provided on the positioning frame, the bolt is connected to the threaded hole on the adjustment frame.

[0017] In one embodiment of this utility model, the fixture base is provided with a discharge opening, which is located directly below the welding area.

[0018] In one embodiment of this utility model, the fixture base is disposed on the machine platform, the machine platform is provided with waist-shaped grooves at its four corners, and the bottom surface of the machine platform is provided with guide slots, which are arranged parallel to the waist-shaped grooves.

[0019] The beneficial effects of this utility model are:

[0020] The limiting mechanism of this utility model guides and conveys the resistance splicing strip into the positioning mechanism. After the guide component and positioning component on the positioning frame fix and adjust the horizontal and vertical positions of the resistance splicing strip, the resistance splicing strip moves to the welding area formed by the two baffle plates and the positioning component. The welding laser enters the resistance splicing strip from the welding port to perform splicing welding. The baffle plates on both sides of the welding area can block the welding slag generated during welding, effectively controlling the slag splashing. The sealing cover is placed on the positioning frame, and the welding port exposes the resistance splicing strip in the welding area. Because there is a sealing cover during welding, the space in the welding area is in a relatively sealed state. At this time, protective gas can be injected to ensure the welding effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a splicing welding fixture according to the present invention.

[0022] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model.

[0023] Figure 3 This is a schematic diagram of the welding mechanism of this utility model.

[0024] The following are the labels in the diagram: 11. Waist-shaped groove; 12. Guide groove; 13. Resistance splicing strip; 2. Fixture base; 21. Bolt; 3. Machine base; 4. Limiting mechanism; 41. Limiting frame; 42. Limiting roller; 43. Limiting plate; 44. Clamp; 5. Sealing cover; 51. Weld joint; 52. Welding area; 6. Positioning mechanism; 61. Positioning frame; 62. Slot; 63. Inclined groove; 64. Slide groove; 7. Positioning assembly; 71. Guide optical axis; 72. Adjusting frame; 73. Guide frame; 74. Guide roller; 8. Baffle plate; 81. Top plate; 82. Bottom plate; 83. Inclined plate; 84. Baffle plate; 9. Guide assembly; 91. Guide shaft; 92. Guide wheel sleeve. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0026] Reference Figure 1-3 As shown, a splicing welding fixture includes:

[0027] Fixture base 2, on which a welding station is provided;

[0028] Positioning mechanism 6 is set on the welding station. Positioning mechanism 6 includes positioning frame 61, guide component 9 and positioning component 7. Positioning frame 61 is set on the fixture base 2. Guide component 9 and positioning component 7 are alternately set on positioning frame 61. Guide component 9 and positioning component 7 are used to transfer and position the resistor splicing strip 13 in the horizontal and vertical directions.

[0029] A limiting mechanism 4 is disposed on the fixture base 2. The limiting mechanism 4 is disposed opposite to the feeding end of the positioning mechanism 6. The limiting mechanism 4 is used to guide and position the resistor splice 13 entering the positioning mechanism 6.

[0030] A welding mechanism is mounted on the positioning frame 61. The welding mechanism includes a sealing cover 5 and two baffle plates 8. The baffle plates 8 are positioned between adjacent guide components 9 and positioning components 7, such that the two baffle plates 8 and the positioning components 7 surround the resistance band 13 to form a welding area 52. The sealing cover 5 is mounted on the positioning frame 61 and has a welding port 51. The welding port 51 is positioned opposite to the welding area 52.

[0031] The limiting mechanism 4 of this utility model guides and conveys the resistance splicing strip 13 entering the positioning mechanism 6. After the guiding component 9 and positioning component 7 on the positioning frame 61 fix and adjust the horizontal and vertical positions of the resistance splicing strip 13, the resistance splicing strip 13 moves to the welding area 52 formed by the two baffle plates 8 and the positioning component 7. The welding laser enters the resistance splicing strip 13 from the welding port 51 to perform splicing welding. The baffle plates 8 on both sides of the welding area 52 can block the welding slag generated during welding, effectively controlling the splashing of welding slag. The sealing cover 5 is placed on the positioning frame 61, and the welding port 51 exposes the resistance splicing strip 13 in the welding area 52. Because there is a sealing cover 5 during welding, the space of the welding area 52 is in a relatively sealed state. At this time, protective gas can be injected to ensure the welding effect.

[0032] In one embodiment of this utility model, the limiting mechanism 4 includes a limiting frame 41, a limiting roller 42 is mounted on the limiting frame 41, and two limiting blocks are provided on the limiting roller 42. A transmission channel for transmitting the resistance splice 13 is formed between the two limiting blocks. The width of the transmission channel between the two limiting plates 43 can be adjusted to fix and adjust the material position of the resistance splice 13, thereby improving the processing accuracy of the resistance splice 13.

[0033] In one embodiment of the present invention, the limiting block includes a limiting plate 43, and a clamp 44 is provided on the limiting plate 43. The limiting plate 43 is fixedly connected to the limiting roller 42 through the clamp 44.

[0034] Specifically, the width of the transmission channel between the two limiting plates 43 is adjusted according to the specifications of the resistance splicing strip 13, and it is fixedly connected to the limiting roller 42 by the clamp 44. This facilitates the rapid positioning of the resistance splicing strip 13, has a wide range of applications, and high processing accuracy.

[0035] In one embodiment of the present invention, the baffle plate 8 includes a top plate 81 and a bottom plate 82, both of which are mounted on the positioning frame 61. A conveying gap for the resistance splicing strip 13 to pass through is provided between the top plate 81 and the bottom plate 82. An inclined plate 83 is provided on the bottom plate 82, and the end of the inclined plate 83 is inclined toward the guide assembly 9. The top plate 81 and the bottom plate 82 are mounted on the same vertical plane.

[0036] Specifically, the resistance splicing strip 13 is conveyed through the conveying gap between the top plate 81 and the bottom plate 82 to the welding area 52. The welding port 51 is used to expose the resistance splicing strip 13 in the welding area 52. When in the welding area 52, the welding laser enters the resistance splicing strip 13 from the welding port 51 to perform splicing welding. Since the baffle plate 8 is set between the adjacent guide component 9 and the positioning component 7, the two baffle plates 8 and the positioning component 7 surround the resistance splicing strip 13 to form the welding area 52. The welding slag generated during welding can be blocked by the welding slag baffle plate 8, effectively controlling the splashing of welding slag.

[0037] Meanwhile, the top plate 81 and the bottom plate 82 are set on the same vertical plane. The inclined plate 83 is set at an angle so that the two bottom plates 82 form a flared structure, so that the welding slag of the top plate 81 can fall onto the inclined plate 83, avoiding the impurities generated during processing from flowing into the guide component 9, and ensuring the welding quality.

[0038] In one embodiment of this utility model, the positioning frame 61 is provided with a slot 62 that matches the base plate 82, and the opening of the slot 62 is provided with an inclined groove 63 that matches the inclined plate 83. The slot 62 can quickly assemble the base plate 82, reducing the assembly difficulty.

[0039] In one embodiment of the present invention, the positioning frame 61 is provided with a sliding groove 64 that matches the top plate 81, both ends of the top plate 81 are engaged in the sliding groove 64, and a baffle 84 is provided on the top plate 81. The baffle 84 and the top plate 81 form a protective cover covering the guide assembly 9, and the baffle 84 abuts against the sealing cover 5.

[0040] Specifically, the slider on the positioning frame 61 can quickly assemble the top plate 81 to ensure the stability of the top plate 81 in use. The baffle 84 and the top plate 81 form a protective cover over the guide assembly 9. The baffle 84 abuts against the sealing cover 5, which can prevent welding slag from entering the guide assembly 9 on the one hand, and make the space of the welding area 52 relatively sealed on the other hand. At this time, protective gas can be injected to ensure the welding effect.

[0041] In one embodiment of the present invention, the guide assembly 9 includes two guide shafts 91, which are rotatably mounted on the positioning frame 61. Guide wheel sleeves 92 are provided on the guide shafts 91, and a guide channel for transmitting the resistance band 13 is formed between the guide wheel sleeves 92 on the two guide shafts 91.

[0042] Specifically, when the resistance strip 13 forms a guide channel between the guide roller sleeves 92 on the two guide shafts 91, the upper and lower surfaces of the resistance strip and the two electrode strips of the resistance strip 13 are synchronously rolled by the two guide roller sleeves 92, which can flatten the resistance strip 13 and avoid warping and other issues that may affect the subsequent welding quality.

[0043] In one embodiment of this utility model, the positioning component 7 includes two adjustment frames 72. A guide optical shaft 71 is provided on the positioning frame 61. The adjustment frame 72 is slidably mounted on the guide optical shaft 71. A guide frame 73 is provided on the adjustment frame 72. A guide roller 74 is provided on the guide frame 73. A welding channel for transmitting the resistance splicing tape 13 is formed between the two guide rollers 74. A bolt 21 is provided on the positioning frame 61. The bolt 21 is connected to the threaded hole on the adjustment frame 72.

[0044] Specifically, the bolt 21 on the positioning frame 61 is connected to the screw thread on the adjustment frame 72. The relative position between the two adjustment frames 72 is adjusted by rotating the bolt 21 according to the specifications of the resistance strip 13, thereby changing the spacing of the welding channel. This is suitable for processing resistance strips 13 of various specifications. After the resistance strip 13 is flattened, it flows into the guide rollers 74 to form a welding channel. The guide rollers 74 on both sides roll and position the electrode strips on both sides of the resistance strip 13 to avoid bending of the resistance strip 13 and ensure the subsequent welding accuracy.

[0045] In one embodiment of the present invention, the fixture base 2 is provided with a discharge opening, which is located directly below the welding area 52.

[0046] Specifically, the discharge opening is located directly below the welding area 52. The welding slag generated during welding is blocked by the welding slag baffle plate 8 and discharged through the discharge opening to avoid the accumulation of welding slag affecting the welding process.

[0047] In one embodiment of the present invention, the fixture base 2 is disposed on the machine base 3, the machine base 3 is provided with waist-shaped grooves 11 at its four corners, and the bottom surface of the machine base 3 is provided with guide slots 12, which are arranged parallel to the waist-shaped grooves 11.

[0048] Specifically, the machine base 3 is placed on the resistance welding equipment. The waist-shaped groove 11 on it is connected to the equipment by fasteners such as screws. The guide slot 12 matches the corresponding protrusion on the equipment, which can facilitate the quick positioning of the fixture. At the same time, when adjusting the position of the machine base 3, it can guide the movement of the fixture to ensure the accuracy of the fixture position adjustment and ensure the welding effect.

[0049] Usage process

[0050] The machine base 3 is placed on the resistance welding equipment. The waist-shaped groove 11 on it is connected to the equipment by fasteners such as screws. The guide slot 12 matches the corresponding protrusion on the equipment, which can facilitate the quick positioning of the fixture. At the same time, when adjusting the position of the machine base 3, it can guide its position to ensure the accuracy of the fixture position adjustment and ensure the welding effect. The width of the transmission channel between the two limit plates 43 is adjusted according to the specifications of the resistance splicing strip 13, and it is fixedly connected to the limit roller 42 by the clamp 44. After the resistance splicing strip 13 is guided and positioned through the transmission channel, it enters the guide group of the positioning mechanism 6. On part 9, when the resistance strip 13 forms a guide channel between the guide roller sleeves 92 on the two guide shafts 91, the upper and lower surfaces of the resistance strip and the two electrode strips of the resistance strip 13 are synchronously rolled by the two guide roller sleeves 92. This can flatten the resistance strip 13 and avoid warping or other issues that could affect the subsequent welding quality. After the resistance strip 13 is flattened, it flows into the welding channel between the guide rollers 74. The guide rollers 74 on both sides roll and position the electrode strips on both sides of the resistance strip 13 to prevent bending or other issues and ensure the subsequent welding accuracy.

[0051] The positioning frame 61 has multiple guide components 9 and positioning components 7. The number of guide components 9 and positioning components 7 can be changed according to the actual processing. Generally, after the horizontal and vertical directions of the resistance splicing strip 13 are positioned and corrected, the resistance splicing strip 13 is conveyed through the conveying gap set between the top plate 81 and the bottom plate 82 to the welding area 52. The welding port 51 is used to expose the resistance splicing strip 13 in the welding area 52. When in the welding area 52, the welding laser enters the resistance splicing strip 13 from the welding port 51 to perform splicing welding. Since the baffle plate 8 is set between the adjacent guide components 9 and positioning components 7, the two baffle plates 8 and the positioning component 7 surround the resistance splicing strip 13 to form the welding area 52. The welding slag generated during welding can be blocked by the welding slag baffle plate 8, effectively controlling the splashing of welding slag. The sealing cover 5 is set on the positioning frame 61, and the baffle plate 84 abuts against the sealing cover 5. Since there is a sealing cover 5 during welding, the space of the welding area 52 is in a relatively sealed state. At this time, protective gas can be injected to ensure the welding effect.

[0052] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A splicing and welding fixture, characterized in that, include: The fixture base is equipped with a welding station; A positioning mechanism is provided on the welding station. The positioning mechanism includes a positioning frame, a guide component, and a positioning component. The positioning frame is provided on the fixture base. The guide component and the positioning component are alternately provided on the positioning frame. The guide component and the positioning component are used to transfer and position the resistor splicing strip in the horizontal and vertical directions. A limiting mechanism is provided on the fixture base. The limiting mechanism is positioned opposite to the feeding end of the positioning mechanism. The limiting mechanism is used to guide and position the resistor strip entering the positioning mechanism. A welding mechanism is provided on the positioning frame. The welding mechanism includes a sealing cover and two baffles. The baffles are arranged between adjacent guide components and positioning components, so that the two baffles and the positioning components surround the resistance band to form a welding area. The sealing cover is provided on the positioning frame and has a welding port. The welding port is arranged opposite to the welding area.

2. The splicing welding fixture as described in claim 1, characterized in that, The limiting mechanism includes a limiting frame, a limiting roller rotating on the limiting frame, and two limiting blocks on the limiting roller, forming a transmission channel between the two limiting blocks for transmitting resistance splicing tape.

3. The splicing welding fixture as described in claim 2, characterized in that, The limiting block includes a limiting plate, and a clamp is provided on the limiting plate. The limiting plate is fixedly connected to the limiting roller through the clamp.

4. The splicing welding fixture as described in claim 1, characterized in that, The baffle plate includes a top plate and a bottom plate, both of which are mounted on the positioning frame. A conveying gap is provided between the top plate and the bottom plate for the resistance splicing tape to pass through. An inclined plate is provided on the bottom plate, with the end of the inclined plate inclined toward the guide assembly. The top plate and the bottom plate are mounted on the same vertical plane.

5. The splicing welding fixture as described in claim 4, characterized in that, The positioning frame is provided with a slot that matches the base plate, and the opening of the slot is provided with an inclined groove that matches the inclined plate.

6. The splicing welding fixture as described in claim 4, characterized in that, The positioning frame is provided with a sliding groove that matches the top plate. Both ends of the top plate are engaged in the sliding groove. A baffle is provided on the top plate. The baffle and the top plate form a protective cover covering the guide assembly. The baffle abuts against the sealing cover.

7. The splicing welding fixture as described in claim 1, characterized in that, The guiding assembly includes two guide shafts, which are rotatably mounted on the positioning frame. Guide wheel sleeves are provided on the guide shafts, and a guiding channel for transmitting resistance tape is formed between the guide wheel sleeves on the two guide shafts.

8. The splicing welding fixture as described in claim 1, characterized in that, The positioning assembly includes two adjustment frames. A guide optical shaft is provided on the positioning frame. The adjustment frame slides on the guide optical shaft. A guide frame is provided on the adjustment frame. A guide roller is provided on the guide frame. A welding channel for transmitting resistance splicing tape is formed between the two guide rollers. A bolt is provided on the positioning frame. The bolt is connected to the threaded hole on the adjustment frame.

9. The splicing welding fixture as described in claim 1, characterized in that, The fixture base is provided with a discharge opening, which is located directly below the welding area.

10. The splicing welding fixture as described in claim 1, characterized in that, The fixture base is mounted on the machine platform, and the machine platform has waist-shaped grooves at its four corners. The bottom surface of the machine platform has guide slots, which are arranged parallel to the waist-shaped grooves.

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