Welding machine part replacement operation device

Abstract

The utility model discloses a welding machine part replacement operation device, and belongs to the technical field of welding machines, and the welding machine part replacement operation device comprises a base used for being placed in a mounting area; the executing mechanism is used for providing lifting actions in the stroke and is connected to the base; the jacking assembly is used for jacking parts above the jacking assembly, and the jacking assembly is connected to the executing mechanism; and the power assembly is connected to the executing mechanism and used for providing power for the executing mechanism, so that the executing mechanism drives the jacking assembly to adjust the height, and the jacking assembly is in surface contact with the part and provides acting force for the part. When the device is used for installing parts, the moment provided by the device can be stably adjusted, accurate alignment installation is achieved, it is guaranteed that the moment and gaps of the installed parts and an original structure are uniform, and therefore the part installation quality is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of welding machines, and in particular relates to a device for replacing parts of a welding machine. Background Art

[0002] The welding machine is one of the most important pieces of equipment in a pickling mill. It ensures the continuity of automated production, and the quality of its shear blades significantly impacts the entire machine. However, the double-cut shear blades of a pickling mill welder are consumable parts, requiring replacement every 7,500 shears. Substandard installation accuracy compromises shear quality, directly impacting weld quality and shortening the lifespan of the spare parts.

[0003] The existing shear blade replacement is to use a jack and a wooden block to adjust the shear blades in the upper and lower positions. However, the installation quality of the shear blades does not meet the production requirements. The specific problems include the following:

[0004] 1. The shear blade screw hole and the bolt tapered washer cannot fit completely in the center.

[0005] 2. Wood chips are easy to fall between the shear blade and the shear tire, affecting the shear gap and the GAP accuracy of the welding machine.

[0006] 3. After the shear blade is replaced, burrs are likely to appear, shortening the service life of the spare parts. Utility Model Content

[0007] The present application aims to at least to some extent solve the technical problem that the shear blade installation quality does not meet the requirements. To this end, the present application provides a welding machine parts replacement operation device. When installing parts, it can stabilize the torque provided by the adjustment device and accurately install them in position to ensure that the parts are consistent with the original structure torque and clearance after installation, thereby improving the parts installation quality.

[0008] The present invention provides a welding machine parts replacement device, which includes:

[0009] A base for placement in the installation area;

[0010] An actuator is used to provide lifting action within the stroke, and the actuator is connected to the base;

[0011] A lifting assembly is used to support the parts above it, and the lifting assembly is connected to the actuator;

[0012] The power assembly is connected to the actuator and is used to provide power to the actuator so that the actuator drives the lifting assembly to adjust the height and the lifting assembly contacts the part surface and provides force to the part.

[0013] The replacement of the existing shear blade requires the use of a jack and a wooden block, but the installation quality of the shear blade does not meet the requirements. This is because: on the one hand, when the jack lifts the shear blade, it is inconvenient to adjust the torque, and the adjustment is difficult. Excessive torque causes the upper and lower shear blade inner gaskets to be subjected to unilateral force, and too small a torque causes the upper and lower shear blade outer gaskets to be subjected to unilateral force. Once the torque is not suitable, it is easy to cause the shear blade screw hole and the bolt conical gasket to not be completely fitted in the center. On the other hand, when the jack is withdrawn, the shear blade will vibrate and the force-bearing gasket will be completely fitted with the bolt during the process of shearing the strip, causing the bolt torque to release force, resulting in a smaller overall shear blade gap, or an uneven shear blade gap, and there is a hidden danger of bolt loosening.

[0014] This application provides an installation foundation through a base, provides lifting power to the actuator through a power assembly, and drives the jacking assembly to perform lifting and lowering movements within the actuator's stroke through the actuator. When the jacking assembly rises, it can support the parts above. When installing parts, the force acting on the parts can be adjusted by the lifting position of the jacking assembly. Since the jacking assembly is in surface contact with the parts and can provide force, the jacking assembly can fully contact with the parts, the stress distribution is balanced, and the torque provided by the device can be adjusted more stably, and the installation is accurate and aligned to ensure that the parts are consistent with the original structure torque and clearance after installation, thereby improving the quality of part installation.

[0015] In an optional embodiment, the actuator includes a drive cylinder and a guide structure, the two ends of the drive cylinder and the guide structure are respectively connected to the base and the jacking assembly, the drive cylinder is connected to the power assembly, the drive cylinder is used to drive the jacking assembly to rise and fall, and the guide structure is used to guide the lifting assembly to rise and fall.

[0016] In an optional embodiment, the jacking assembly is connected to at least two guide structures.

[0017] In an optional embodiment, the guide structure includes a slide rail and a slider, the slide rail is connected to the base, the guiding direction of the slide rail is consistent with the lifting direction of the jacking assembly, the slider is connected to the jacking assembly, and the slide rail matches the slider.

[0018] In an optional embodiment, the jacking assembly includes a bottom beam, a cross beam and multiple support beams. The bottom beam is connected to the drive cylinder, and the two ends of the support beam are respectively connected to the bottom beam and the cross beam. The cross beam is used to support the parts.

[0019] In an optional embodiment, a positioning wheel is further included, which is connected to the base and is used to position the base.

[0020] In an optional embodiment, the positioning wheel includes a plurality of rollers and a plurality of guide wheels, the rollers are used to move the position of the base, and the guide wheels are used to abut against parts located next to the base.

[0021] In an optional embodiment, the roller is arranged on the placement surface of the base, the guide wheel is arranged on the side of the base, and the multiple guide wheels are located on at least two sides of the base.

[0022] In an optional embodiment, the power assembly includes a valve platform and a regulating valve, the regulating valve is fixed to the valve platform, and the regulating valve is connected to the driving cylinder through a pipeline.

[0023] In an optional embodiment, the power assembly further includes a pressure reducing valve fixed to the valve platform, and the pressure reducing valve is connected to the driving cylinder through a pipeline.

[0024] It can be seen from the above technical solution that the beneficial effects of this application are:

[0025] This application provides an installation foundation through a base, provides lifting power to the actuator through a power assembly, and drives the jacking assembly to perform lifting and lowering movements within the actuator's stroke through the actuator. When the jacking assembly rises, it can support the parts above. When installing parts, the force acting on the parts can be adjusted by the lifting position of the jacking assembly. Since the jacking assembly is in surface contact with the parts and can provide force, the jacking assembly can fully contact with the parts, the stress distribution is balanced, and the torque provided by the device can be adjusted more stably, and the installation is accurate and aligned to ensure that the parts are consistent with the original structure torque and clearance after installation, thereby improving the quality of part installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other embodiments and drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 A schematic diagram of an embodiment of a welding machine parts replacement device according to the present invention is shown;

[0028] Figure 2 A schematic diagram of an embodiment of a power assembly of a welding machine parts replacement device of the present invention is shown;

[0029] Figure numerals: 100, welding machine parts replacement operation device; 110, base; 120, actuator; 121, drive cylinder; 122, slide rail; 123, slider; 130, lifting assembly; 131, bottom beam; 132, support beam; 133, cross beam; 140, power assembly; 141, valve table; 142, regulating valve; 143, pressure reducing valve; 144, switch; 145, indicator light; 150, positioning wheel; 151, roller; 152, guide wheel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0032] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0033] In addition, in this utility model, the descriptions of "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0034] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0035] Please refer to Figure 1, the first embodiment of the present application provides a welding machine parts replacement operation device 100, which includes a base 110, an actuator 120, a jacking assembly 130 and a power assembly 140. The base 110 is used to be placed in the installation area, that is, the base 110 needs to be placed in the installation area to provide support during installation. The base 110 can adopt a plate structure or a frame structure, as long as it can provide an installation position for the actuator 120; the actuator 120 has a lifting stroke, and the actuator 120 is used to provide a lifting action within the stroke. The actuator 120 is connected to the base 110, and the actuator 120 is fixed to the base 110 by bolting or welding. The actuator 120 can adopt an electric cylinder, a linear motor or other devices that can provide a lifting stroke; the jacking assembly 130 is used to support the parts above it, and the jacking assembly 130 is connected to the actuator 120. The jacking assembly 130 is located above the actuator 120, and the base 110 is located Below the actuator 120, the lifting assembly 130 adopts a block structure, a rod structure or a frame structure. The lifting assembly 130 is fixed to the output end of the actuator 120. For example, the lifting assembly 130 is fixed to the output shaft end of the linear motor by a key connection method, so that the actuator 120 can drive the lifting assembly 130 to reciprocate along a straight line; the power assembly 140 is connected to the actuator 120. The power assembly 140 is such as a power battery, and other devices that can provide power can also be used. The power assembly 140 is electrically connected to the actuator 120 through wiring. The power assembly 140 is used to provide power to the actuator 120, so that the actuator 120 drives the lifting assembly 130 to adjust the height. When the lifting assembly 130 is at the highest point of the stroke or at a certain point in the stroke, the lifting assembly 130 contacts the part surface and provides a force to the part, such as the top surface of the lifting assembly 130 contacts the upper shear blade, and when in contact, the upper shear blade is lifted up to provide a force.

[0036] The replacement of the existing shear blade requires the use of a jack and a wooden block, but the installation quality of the shear blade does not meet the requirements. This is because: on the one hand, when the jack lifts the shear blade, it is inconvenient to adjust the torque, and the adjustment is difficult. Excessive torque causes the upper and lower shear blade inner gaskets to be subjected to unilateral force, and too small a torque causes the upper and lower shear blade outer gaskets to be subjected to unilateral force. Once the torque is not suitable, it is easy to cause the shear blade screw hole and the bolt conical gasket to not be completely fitted in the center. On the other hand, when the jack is withdrawn, the shear blade will vibrate and the force-bearing gasket will be completely fitted with the bolt during the process of shearing the strip, causing the bolt torque to release force, resulting in a smaller overall shear blade gap, or an uneven shear blade gap, and there is a hidden danger of bolt loosening.

[0037] In this application, the base 110 is used to provide an installation foundation, the power component 140 is used to provide lifting power for the actuator 120, and the actuator 120 drives the jacking component 130 to perform lifting movements within the stroke of the actuator 120. When the jacking component 130 rises, it can support the parts above. When installing the parts, the magnitude of the force acting on the parts can be adjusted by the lifting position of the jacking component 130. Since the jacking component 130 is in surface contact with the parts and can provide force, the jacking component 130 can fully contact with the parts, the stress distribution is balanced, and the torque provided by the device can be more stably adjusted, and the installation is accurate and aligned to ensure that the parts are consistent with the original structure torque and gap after installation, thereby improving the quality of part installation.

[0038] In an optional embodiment, the actuator 120 includes a drive cylinder 121 and a guide structure, the two ends of the drive cylinder 121 and the guide structure are respectively connected to the base 110 and the jacking assembly 130, the drive cylinder 121 is connected to the power assembly 140, and the drive cylinder 121 is used to drive the jacking assembly 130 to move up and down. The lifting stroke direction of the drive cylinder 121 and the lifting direction of the jacking assembly 130 are consistent with the guide direction of the guide structure, and the guide structure is used to guide the lifting and lowering of the jacking assembly 130. The driving cylinder 121 can be an air cylinder, a hydraulic cylinder, an electric cylinder or other devices that can provide a lifting stroke. Here, an air cylinder is used, and the stroke of the cylinder is greater than or equal to 50 mm. The output shaft of the cylinder is fixed to the jacking assembly 130 with screws or key connections, so that the cylinder can drive the jacking assembly 130 to lift and lower, and the jacking assembly 130 can be moved up and down through the action of the cylinder. When the cylinder is fully retracted, the height of the jacking assembly 130 is basically equal to the minimum spacing between the shear blades. When the cylinder is extended, it is higher than the maximum spacing between the shear blades, which fully meets the use within the range of the shear blades; the guide structure adopts a sliding structure, such as a guide structure with a slide groove, and the side of the jacking assembly 130 is stuck in the slide groove to match, so that the jacking assembly 130 can slide up and down along the guide structure.

[0039] In an optional embodiment, the jacking component 130 is connected to at least two guide structures, such as guide structures are connected to the bottom positions on both sides of the jacking component 130, and the length of the guide structure is greater than or equal to 150 mm. If the two sides of the jacking component 130 are protruding and respectively inserted into the vertically arranged slide grooves, the jacking component 130 can be lifted and lowered along the slide grooves. Through at least two guide structures, the lifting and lowering of the jacking component 130 can be adjusted more stably. During use, the torque of the bolts for installing the shear blades is equal, and the shear blade gap is kept consistent to avoid burrs on the shear blades and extend the service life of the welding machine. In an optional embodiment, the guide structure includes a slide rail 122 and a slider 123. The slide rail 122 is connected to the base 110. The guiding direction of the slide rail 122 is consistent with the lifting direction of the jacking assembly 130, that is, the slide rail 122 is vertically arranged, and the bottom end of the slide rail 122 is welded and fixed to the base 110, or it can be fixed with screws. The slider 123 is connected to the jacking assembly 130, and the slide rail 122 matches the slider 123. For example, the side of the slider 123 is fixed to the side of the jacking assembly 130 by screws, and the sliders 123 are fixed on both sides of the jacking assembly 130. In this way, the two sliders 123 can guide the jacking assembly 130 at the same time.

[0040] In an optional embodiment, the jacking assembly 130 includes a bottom beam 131, a cross beam 133 and a plurality of support beams 132. The bottom beam 131 is connected to the drive cylinder 121. A connecting hole is provided at the bottom of the bottom beam 131. The end of the output end of the drive cylinder 121 is protruded to both sides and provided with corresponding holes. The output end is fixed to the bottom of the bottom beam 131 by screws passing through the corresponding holes. The two ends of the support beam 132 are respectively connected to the bottom beam 131 and the cross beam 133. There are two support beams 132 in total, and the two support beams 132 are connected. The arrangement of the support beam 132 ensures that the device can be used at both the lowest and highest points of the stroke. The bottom ends of the support beam 132 are welded to the two ends of the top of the bottom beam 131, and the top of the support beam 132 is welded to the bottom of the crossbeam 133. The top of the crossbeam 133 has a narrow contact surface. The crossbeam 133 is used to support the parts. The crossbeam 133 has a certain width. The length of the crossbeam 133 is greater than the distance between the two support beams 132, so that the crossbeam 133 can make surface contact with the upper shear blade. The upper shear blade is installed at an angle of 2° to the horizontal plane. The crossbeam 133 is installed parallel to the upper shear blade, which can ensure that the shear blade is uniformly stressed upward as a whole. During use, it can ensure that the crossbeam 133 and the upper shear blade are in complete surface contact, avoiding point contact damage to the cutting edge. The top surface of the crossbeam 133 can be lined with rubber to avoid damage to the cutting edge.

[0041] In an optional embodiment, a positioning wheel 150 is further included, which is connected to the base 110. The positioning wheel 150 is used to position the base 110. The positioning wheel 150 adopts the configuration of a conventional wheel and can be provided with a wheel seat and the wheel seat is fixed to the bottom of the base 110. The positioning wheel 150 can also adopt a wheel with a lock, such as the existing self-locking roller 151 product, which can lock the roller 151 to fix the position of the base 110. In an optional embodiment, the positioning wheel 150 includes a plurality of rollers 151 and a plurality of guide wheels 152, such as a total of 4 rollers 151 and 4 guide wheels 152. Each roller 151 is located at each corner of the bottom of the base 110. The roller 151 is used to move the position of the base 110. The roller 151 plays a supporting role for the entire device, is responsible for the movement of the device, and is positioned in the installation area by the roller 151. Each two guide wheels 152 are located on both sides of the base 110 respectively. The guide wheels 152 are used to abut against the parts located next to the base 110. The guide wheels 152 contact the inner side of the lower shear blade and support the lower shear blade. As the fulcrum of the lower shear blade, the guide wheels 152 are used to position the device laterally. In an optional embodiment, the roller 151 is arranged on the placement surface of the base 110, which is the side facing the installation area in the figure. The horizontal spacing between the two rollers 151 located on the base 110 is 365 mm. The position of the roller 151 is set so that the roller 151 is aligned with the surface center line of the upper shear blade. The guide wheel 152 is arranged on the side of the base 110, and multiple guide wheels 152 are located on at least two sides of the base 110. The gap between the guide wheels 152 on both sides is less than or equal to 333 mm. When the thickness of the lower shear blade spare part changes, the spacing between the side guide wheels 152 also needs to be adjusted. The lower shear blade is supported by the guide wheel to maintain the position of the base 110, which can avoid the use of wooden blocks and eliminate the use of wooden blocks to support the lower shear blade. It can avoid hard objects from causing damage to the cutting edge of the shear blade, and can prevent wooden blocks from falling between the shear blade and the shear tire to affect the shear gap, thereby improving the installation accuracy of the shear blade and not affecting the GAP accuracy of the welding machine.

[0042] Please refer to Figure 2In an alternative embodiment, the power assembly 140 includes a valve platform 141 and a regulating valve 142. The regulating valve 142 is fixed to the valve platform 141. The valve platform 141 has a frame structure with an overall height greater than 495 mm and a width less than 455 mm. The top surface of the valve platform 141 can be configured as a plate-like structure to provide a location for mounting and operating the regulating valve 142. The regulating valve 142 is connected to the drive cylinder 121 via a pipe. The other end of the regulating valve 142 is connected to a power source, such as an air source generator, via a pipe. The regulating valve 142 is a manual valve. The switch 144 and the degree of opening of the regulating valve 142 are manually adjusted to adjust the opening and closing of the fluid entering the drive cylinder 121 and the flow rate. Alternatively, the regulating valve 142 can be an electric valve, such as a solenoid valve. When the solenoid valve is energized in position B, the cylinder rises, and when the solenoid valve is energized in position A, the cylinder descends. By calculating the weight of the upper shear blade and the area of ​​the cylinder piston, the required air source pressure is calculated to ensure that the shear blade top pressure is in a fixed ratio with the shear blade weight. This ensures that the upper and lower shear blades are squeezed into place and that the shear blade bolts and conical gaskets are in surface contact. After tightening with a torque wrench, there are no problems with gasket vibration or displacement or bolt force loss during actual use. At the same time, the shear blade top pressure can be precisely controlled by regulating valve 142, and the pressure is digitized, making operation more precise and avoiding the risk of the jack rod slipping and people falling on the shear blades and getting scratched.

[0043] In an alternative embodiment, the power assembly 140 further includes a pressure reducing valve 143 fixed to the valve station 141. The pressure reducing valve 143 is connected to the drive cylinder 121 via a pipeline. Similarly, the pressure reducing valve 143 is a manual valve or an electric valve. Manually controlling the switch 144 of the pressure reducing valve 143 can regulate the discharge of fluid from the drive cylinder 121, such as to release air. In an alternative embodiment, the power assembly 140 further includes a switch 144 and an indicator light 145. The switches 144 are electrically connected to the regulating valve 142 and the pressure reducing valve 143, respectively. There are two switches 144, which independently control the regulating valve 142 and the pressure reducing valve 143. Thus, the switches 144 can control the operation of the actuator 120, such as the lifting operation of the lifting assembly 130 by the cylinder, thereby achieving the lifting and lowering of the device and supporting the upper shear blade, assisting the operator in completing the shear blade replacement / installation operation. There are three indicator lights 145, one for indicating power, raising, and lowering, respectively. The indicator lights 145 provide a clearer view of the device's operating status.

[0044] When using this device, it can be placed on the upper surface of the lower shear blade, and the switch 144 of the valve table 141 can be used to realize the lifting and lowering action of the jacking component 130, and apply accurate pressure between the upper and lower shear blades, so as to easily and accurately complete the shear blade bolt tightening operation, and also avoid the risk of mechanical injury accidents such as the pressure rod slipping during the use of the jack and people falling on the shear blade; it also avoids the problem of torque loosening after bolt tightening caused by excessive or insufficient pressure between the shear blades; and the operation is simpler, with high precision and high safety.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "optional example" or "optional implementation" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0046] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually 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 this application.

[0047] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A welding machine parts replacement device, characterized in that: include: A base (110) for placement in an installation area; an actuator (120) for providing a lifting action within a stroke, wherein the actuator (120) is connected to the base (110); A lifting assembly (130) is used to support the parts above it, and the lifting assembly (130) is connected to the actuator (120); A power assembly (140) is connected to the actuator (120) and is used to provide power to the actuator (120), so that the actuator (120) drives the lifting assembly (130) to adjust the height, and the lifting assembly (130) contacts the part surface and provides a force to the part.

2. The welding machine parts replacement device according to claim 1, characterized in that: The actuator (120) includes a driving cylinder (121) and a guide structure. The two ends of the driving cylinder (121) and the guide structure are respectively connected to the base (110) and the jacking assembly (130). The driving cylinder (121) is connected to the power assembly (140). The driving cylinder (121) is used to drive the jacking assembly (130) to rise and fall. The guide structure is used to guide the jacking assembly (130) to rise and fall.

3. The welding machine parts replacement device according to claim 2, characterized in that: The lifting assembly (130) is connected to at least two of the guide structures.

4. The welding machine parts replacement device according to claim 2, characterized in that: The guide structure comprises a slide rail (122) and a slider (123); the slide rail (122) is connected to the base (110); the guide direction of the slide rail (122) is consistent with the lifting direction of the jacking assembly (130); the slider (123) is connected to the jacking assembly (130); and the slide rail (122) matches the slider (123).

5. The welding machine parts replacement device according to claim 2, characterized in that: The lifting assembly (130) includes a bottom beam (131), a cross beam (133) and a plurality of support beams (132); the bottom beam (131) is connected to the driving cylinder (121); the two ends of the support beam (132) are respectively connected to the bottom beam (131) and the cross beam (133); and the cross beam (133) is used to support parts.

6. The welding machine parts replacement device according to claim 1, characterized in that: It also includes a positioning wheel (150) connected to the base (110), and the positioning wheel (150) is used to position the base (110).

7. The welding machine parts replacement device according to claim 6, characterized in that: The positioning wheel (150) includes a plurality of rollers (151) and a plurality of guide wheels (152), wherein the rollers (151) are used to move the position of the base (110), and the guide wheels (152) are used to abut against parts located beside the base (110).

8. The welding machine parts replacement device according to claim 7, characterized in that: The roller (151) is arranged on the placement surface of the base (110), the guide wheel (152) is arranged on the side of the base (110), and a plurality of the guide wheels (152) are located on at least two sides of the base (110).

9. The welding machine parts replacement device according to claim 2, characterized in that: The power assembly (140) comprises a valve platform (141) and a regulating valve (142). The regulating valve (142) is fixed to the valve platform (141). The regulating valve (142) is connected to the driving cylinder (121) through a pipeline.

10. The welding machine parts replacement device according to claim 9, characterized in that: The power assembly (140) further includes a pressure reducing valve (143) fixed to the valve platform (141), and the pressure reducing valve (143) is connected to the driving cylinder (121) through a pipeline.

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