Automatic welding clamp for stainless steel strip

Abstract

The utility model relates to an automatic welding fixture for a stainless steel strip, comprising: an electromagnetic base which is horizontally and fixedly mounted, is used for contacting with the bottom surface of the seam of the steel strip, and is internally provided with an electromagnetic coil; the first pressing plate assembly is in pressing contact with one side of the front face of the steel belt seam and comprises a first carbon steel pressing plate connected with the electromagnetic base in an adsorption mode, and a first red copper heat dissipation plate is installed at the bottom of the first carbon steel pressing plate in a pressing mode; the second pressing plate assembly is in pressing contact with the other side of the front face of the steel belt seam and comprises a second carbon steel pressing plate connected with the electromagnetic base in an adsorption mode, and a second red copper heat dissipation plate is installed at the bottom of the second carbon steel pressing plate in a pressing mode; the welding device is connected to the second pressing plate assembly in a sliding mode and used for welding a steel belt joint between the first pressing plate assembly and the second pressing plate assembly. Electromagnetic adsorption is adopted to replace a traditional air bag and bolt clamping and fixing mode, the clamp can be suitable for steel belts of any specification and size, and meanwhile disassembly and assembly are convenient, efficient and labor-saving.

Description

Technical Field

[0001] The invention relates to a welding fixture, in particular to an automatic welding fixture for stainless steel strips, belonging to the technical field of fixtures. Background Art

[0002] Annular steel belts are currently widely used in the conveying and transmission links of industrial equipment. The welding process of the endless steel belts involves, on the one hand, clamping and fixing the joints of the steel belts, and on the other hand, welding operations. As clamping and positioning are prerequisites for welding operations, their own structure and operating efficiency are particularly important.

[0003] At present, the pneumatic fixing method combining airbags and bolts is mainly used to clamp and fix steel strips. The main disadvantages of this clamping method include: 1. An air source must be available on site, which limits its use in some scenarios; 2. The use of bolts makes the disassembly and replacement of steel strips time-consuming and labor-intensive, which is relatively inefficient; 3. The use of bolts limits the width and thickness of the steel strips, and cannot be applied to steel strips of any specifications; 4. The structural design of the welding device has limitations, and there is not much room for adjustment. Summary of the Invention

[0004] The present invention aims to solve the various problems mentioned above and further provides an automatic welding fixture for stainless steel strips.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is:

[0006] An automatic stainless steel strip welding fixture is used to clamp and weld the end-to-end joints of the stainless steel strip. The special features of the fixture include:

[0007] The electromagnetic base is fixedly installed horizontally to contact the bottom surface of the steel belt joint and has a built-in electromagnetic coil;

[0008] A first pressing plate assembly, pressing against the front side of the steel strip joint, comprises a first carbon steel pressing plate adsorbedly connected to the electromagnetic base, a first copper heat sink being press-fitted to the bottom of the first carbon steel pressing plate;

[0009] A second pressing plate assembly, pressing against the other side of the front surface of the steel strip joint, comprises a second carbon steel pressing plate adsorbedly connected to the electromagnetic base, and a second copper heat sink is press-fitted to the bottom of the second carbon steel pressing plate;

[0010] The welding device is slidably connected to the second pressing plate assembly and is used for welding the steel strip joint between the first pressing plate assembly and the second pressing plate assembly.

[0011] Furthermore, the electromagnetic base includes a frame and an electromagnetic coil fixing seat, an electromagnetic coil, a cable shield, a copper heat sink and a rocker switch assembled together based on the frame; wherein, the electromagnetic coil is installed in a coil groove opened on the surface of the electromagnetic coil fixing seat, the copper heat sink is embedded in a groove opened in the middle of the electromagnetic coil fixing seat, and the electromagnetic coil fixing seat is installed on the frame through the copper heat sink.

[0012] Furthermore, the electromagnetic base is equipped with rocker switches corresponding to the number of the electromagnetic coils, and the rocker switches are installed on the outside of the cable shield.

[0013] Furthermore, the left and right ends of the first pressing plate assembly and the second pressing plate assembly are respectively provided with handles.

[0014] Furthermore, a rack for realizing transmission and a slide rail for installing a welding device are arranged above the second carbon steel pressing plate.

[0015] Furthermore, the welding device has a welding base, which is adaptively connected to the slide rail above the second carbon steel pressure plate through a sliding block at the bottom of the welding base.

[0016] Furthermore, a travel motor is provided on the welding base of the welding device, and the gear output by the travel motor is meshed with the rack arranged above the second carbon steel pressure plate for transmission, so that the entire welding device slides and travels in a predetermined direction.

[0017] Furthermore, the welding device also includes a wire feeding adjustment mechanism, which includes a wire feeding motor and a wire feeding roller installed on the first sliding module, and a wire guide tube installed on the second sliding module. The wire feeding motor drives a pair of wire feeding rollers, and the two wire feeding rollers clamp the welding wire and transport it into the wire guide tube.

[0018] Furthermore, the welding device also includes a welding gun, which is movably mounted on one side of the wire guide barrel through a connecting piece and cooperates with the welding wire output from the bottom of the wire guide barrel to realize the welding operation.

[0019] The utility model relates to an automatic welding fixture for stainless steel strips. It uses electromagnetic adsorption to replace the traditional airbag + bolt clamping method, making the fixture suitable for steel strips of any specifications and sizes. It is also convenient and efficient to assemble and disassemble. The electromagnetic coil is installed on a fixed base, which can reduce the thickness and weight of the upper pressure plate. When in use, no lifting or hoisting device is required. Manual lifting or carrying can be achieved through the handles on both sides of the pressure plate. The electromagnetic base uses an aluminum alloy frame and is fixed together with the electromagnetic coil mounting base by bolts. The overall height is lower and suitable for welding in smaller spaces. Each electromagnetic coil is controlled by a separate switch. When powered on, the electromagnetic coil generates an attractive force, which can firmly clamp and weld stainless steel strips of different widths and thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : Schematic diagram of the overall structure of the welding fixture in use according to the first embodiment;

[0021] Figure 2 : Schematic diagram of the electromagnetic base structure;

[0022] Figure 3 : Schematic diagram of the electromagnetic coil fixing seat structure;

[0023] Figure 4 : Schematic diagram of welding fixture structure;

[0024] Figure 5 : Schematic diagram of the welding device structure at the first angle;

[0025] Figure 6 : Schematic diagram of the second angle structure of the welding device. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] A stainless steel strip automatic welding fixture is used to clamp and weld the end and tail joints of the steel strip 5. It consists of a clamping device and a welding device installed on the clamping device, wherein the clamping device includes an electromagnetic base 1, and a first pressure plate assembly 2 and a second pressure plate assembly 3 that are adsorbed and matched with the electromagnetic base 1, and the welding device 4 is arranged on the second pressure plate assembly 3; after the steel strip 5 is clamped, the electromagnetic base 1 presses against the first pressure plate assembly 2 and the second pressure plate assembly 3, respectively pressing against one side of the steel strip 5, and the first pressure plate assembly 2 and the second pressure plate assembly 3 press against the other side of the steel strip 5.

[0029] The electromagnetic base 1 includes a frame 11 and an electromagnetic coil fixing seat 12, an electromagnetic coil 15, a cable shield 13, a copper heat sink 16 and a rocker switch 14 assembled together based on the frame 11; wherein, the electromagnetic coil 15 is installed in a coil groove opened on the surface of the electromagnetic coil fixing seat 12, and the copper heat sink 16 is embedded in a groove opened in the middle of the electromagnetic coil fixing seat 12. At the same time, the electromagnetic coil fixing seat 12 is installed on the frame 11 through the copper heat sink 16, and two cable shields 13 are respectively installed on both sides of the electromagnetic coil fixing seat 12. The rocker switch 14 is installed on the outside of the cable shield 13, and its number corresponds to the number of electromagnetic coils 15.

[0030] The first pressure plate assembly 2 includes a first carbon steel pressure plate 21 and a first copper heat sink 22 embedded in the bottom of the first carbon steel pressure plate 21. The second pressure plate assembly 3 includes a second carbon steel pressure plate 31 and a second copper heat sink 32 embedded in the bottom of the second carbon steel pressure plate 31. The first copper heat sink 22 and the second copper heat sink 32 are used to provide heat dissipation during welding. The first carbon steel pressure plate 21 and the second carbon steel pressure plate 31 are respectively used to cooperate with the electromagnetic base 1 to achieve electromagnetic adsorption. A rack 33 for transmission and a slide rail 34 for mounting the welding device are arranged above the second carbon steel pressure plate 31. The left and right ends of the first and second pressure plate assemblies 2 and 3 are respectively equipped with handles.

[0031] The welding device 4 includes a welding base 41 with a slider 42 at the bottom, and the slider 42 is slidably installed on the slide rail 32 above the second carbon steel pressure plate 31. The welding device 4 also includes a travel motor 43, a wire feeding adjustment mechanism 45 and a welding gun 46 installed on the welding base 41. The lower output of the travel motor 43 is connected to a gear 44, and the gear 44 drives and engages with the rack 33 arranged above the second carbon steel pressure plate 31, so that the entire welding device 4 slides and moves in a predetermined direction. The wire feeding adjustment mechanism 45 includes a wire feeding motor 45a installed on the first sliding module 45f, a pair of wire feeding rollers 45b, a wire guide channel 45c, and a wire guide tube 45e installed on the second sliding module 45d. The welding wire enters between the pair of wire feeding rollers 45b through the wire guide channel 45c. The wire feeding motor 45a drives the wire feeding rollers 45b to rotate to transfer the welding wire to the wire guide tube 45e. The welding wire is output through the bottom of the wire guide tube 45e and cooperates with the welding gun 46 movably installed on the outer periphery of the wire guide tube 45e on one side to implement the welding operation.

[0032] The automatic stainless steel strip welding fixture of this embodiment has the following technical advantages over traditional welding fixtures:

[0033] 1. The electromagnetic adsorption fixation replaces the airbag + bolt extrusion fixation, which improves the efficiency of welding operation, reduces the labor intensity of disassembly and clamping, and broadens the applicable steel strip size range of the fixture.

[0034] 2. In the electromagnetic adsorption solution, the feasibility, convenience and efficiency of the operation are fully considered. The electromagnetic coil is installed on the electromagnetic base. The electromagnetic base is fixed during operation, so that the pressure plate above the steel belt can be appropriately reduced in thickness and weight. When in use, no lifting or hoisting device is required, and it can be lifted or carried manually.

[0035] 3. The overall structure of the electromagnetic base is more compact. Since the electromagnetic base adopts an aluminum alloy frame and is fixed with the electromagnetic coil mounting base by bolts, the overall height is lower, which is suitable for welding in a smaller space.

[0036] 4. Each electromagnetic coil is controlled by a separate switch. When powered on, the electromagnetic coil generates attraction, which can firmly clamp and weld stainless steel strips of different widths and thicknesses.

[0037] 5. The welding device is optimized through the structure of the wire feeding adjustment mechanism, making the overall device more flexible and practical.

Claims

1. A stainless steel strip automatic welding fixture, used for clamping and welding the end-to-end joints of stainless steel strips, characterized in that: include: The electromagnetic base is fixedly installed horizontally to contact the bottom surface of the steel belt joint and has a built-in electromagnetic coil; A first pressing plate assembly, pressing against the front side of the steel strip joint, comprises a first carbon steel pressing plate adsorbedly connected to the electromagnetic base, a first copper heat sink being press-fitted to the bottom of the first carbon steel pressing plate; A second pressing plate assembly, pressing against the other side of the front surface of the steel strip joint, comprises a second carbon steel pressing plate adsorbedly connected to the electromagnetic base, and a second copper heat sink is press-fitted to the bottom of the second carbon steel pressing plate; The welding device is slidably connected to the second pressing plate assembly and is used for welding the steel strip joint between the first pressing plate assembly and the second pressing plate assembly.

2. The automatic welding fixture for stainless steel strips according to claim 1, characterized in that: The electromagnetic base includes a frame and an electromagnetic coil fixing base, an electromagnetic coil, a cable shield, a copper heat sink and a rocker switch assembled together based on the frame; wherein, the electromagnetic coil is installed in a coil groove opened on the surface of the electromagnetic coil fixing base, the copper heat sink is embedded in a groove opened in the middle of the electromagnetic coil fixing base, and the electromagnetic coil fixing base is installed on the frame through the copper heat sink.

3. The automatic welding fixture for stainless steel strips according to claim 2, characterized in that: The electromagnetic base is provided with rocker switches corresponding to the number of the electromagnetic coils, and the rocker switches are installed on the outside of the cable shield.

4. The automatic welding fixture for stainless steel strips according to claim 1, characterized in that: The left and right ends of the first pressing plate assembly and the second pressing plate assembly are respectively provided with handles.

5. The automatic welding fixture for stainless steel strips according to claim 1, characterized in that: A rack for realizing transmission and a slide rail for installing a welding device are arranged above the second carbon steel pressing plate.

6. The automatic welding fixture for stainless steel strips according to claim 1, characterized in that: The welding device has a welding base, which is adaptively connected to the slide rail above the second carbon steel pressing plate through a sliding block at the bottom of the welding base.

7. The automatic welding fixture for stainless steel strips according to claim 6, characterized in that: A travel motor is provided on the welding base of the welding device, and the gear output by the travel motor is meshed with the rack arranged above the second carbon steel pressing plate for transmission, so that the entire welding device slides and travels in a predetermined direction.

8. The automatic welding fixture for stainless steel strips according to claim 7, characterized in that: The welding device also includes a wire feeding adjustment mechanism, which includes a wire feeding motor and a wire feeding roller installed on the first sliding module, and a wire guide barrel installed on the second sliding module. The wire feeding motor drives a pair of wire feeding rollers, and the two wire feeding rollers clamp the welding wire and transport it into the wire guide barrel.

9. The automatic welding fixture for stainless steel strips according to claim 8, characterized in that: The welding device also includes a welding gun, which is movably mounted on one side of the wire guide barrel through a connecting piece and cooperates with the welding wire output from the bottom of the wire guide barrel to achieve welding operations.

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