Welding tool and welding method for track beam

Abstract

The invention belongs to the technical field of engineering machinery, and particularly relates to a track beam welding tool and a track beam welding method.The track beam welding tool comprises a supporting frame, a first clamping mechanism, a second clamping mechanism, a third clamping mechanism and a fourth clamping mechanism, the first clamping mechanism can move in the width direction of the supporting frame and is used for positioning and clamping the driving base in the width direction. The second clamping mechanism is positioned at the other end of the supporting frame in the length direction and is used for positioning and clamping the guide seat; the beam body positioning mechanism is positioned between the first clamping mechanism and the second clamping mechanism and is used for positioning and locking the beam body; and the linear driving assembly is in driving connection with the second clamping mechanism, the linear driving assembly is used for driving the second clamping mechanism to slide in the length direction, and the second clamping mechanism is used for applying pressing force to the end, away from the beam body, of the guide seat so as to press the beam body, the driving seat and the guide seat. By the adoption of the welding tool, all parts of the track beam can be accurately positioned, so that the welding precision of the track beam is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering machinery, and in particular relates to a welding tool and a welding method for a crawler beam. Background Art

[0002] The crawler beam of an excavator is a crucial support component for the crawler track. Its dimensional accuracy directly impacts the smoothness of the excavator's movement. In existing technology, when welding a crawler beam, each component is first roughly machined. Subsequently, simple tooling is used to position and weld the components. Finally, the welded crawler beam undergoes fine machining to ensure it meets dimensional requirements.

[0003] However, the above process requires a three-step machining process, which takes a long time and results in low production efficiency. Furthermore, the positioning accuracy of the simple tooling is low, and directly performing precision machining followed by welding can easily result in the welded track beam not meeting dimensional requirements. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding tool and a welding method for a crawler beam, so as to improve the processing efficiency of the crawler beam.

[0005] In order to achieve the above-mentioned object, the present invention provides a welding fixture for a crawler beam, wherein the crawler beam includes a beam body and a guide seat and a drive seat respectively located at both ends of the beam body. The welding fixture includes a support frame and a device mounted on the support frame:

[0006] a first clamping mechanism, located at one end of the support frame in the longitudinal direction, the first clamping mechanism being movable along the width direction of the support frame and being used to position and clamp the drive seat in the width direction;

[0007] A second clamping mechanism is located at the other end of the support frame in the longitudinal direction and is used to position and clamp the guide seat;

[0008] The beam body positioning mechanism is located between the first clamping mechanism and the second clamping mechanism and is used to position and lock the beam body;

[0009] The linear drive assembly is connected to the second clamping mechanism, and the linear drive assembly is used to drive the second clamping mechanism to slide along the length direction. The second clamping mechanism is used to apply a clamping force to the end of the guide seat away from the beam body to press the beam body, the drive seat and the guide seat.

[0010] In some embodiments, the drive seat is provided with a reducer installation cavity, and the first clamping mechanism includes: a fixed seat; a clamping assembly, which is installed on the fixed seat and is provided with a plurality of clamping claws for inserting into the reducer installation cavity; a first driving assembly, which is driven and connected to the clamping claws and is used to drive the clamping claws to engage or separate with the inner wall of the reducer installation cavity.

[0011] In some embodiments, a first driving wheel is provided at the bottom end of the fixed seat, and the welding tool also includes: two first guide rail members, both of which are located between the fixed seat and the support frame and extend along the width direction of the support frame, and the first guide rail member is slidingly connected to the fixed seat; a first rack, located between the two first guide rail members and extending along the length direction of the support frame, the first rack is located between the fixed seat and the support frame and extends along the width direction of the support frame, and the first rack is engaged with the outer peripheral wall of the first driving wheel; a first rotating driving member, which is drivingly connected to the first driving wheel and is used to drive the first driving wheel to rotate.

[0012] In some embodiments, a positioning hole is provided on the side of the beam body facing the support frame, the beam body is a hollow sleeve structure, and an opening is provided on the side of the beam body facing the support frame. The beam body positioning mechanism includes: a first support seat, located between the beam body and the support frame and used to support the beam body from the bottom; a positioning pin, provided on the side of the first support seat facing the beam body, the positioning pin is provided corresponding to the positioning hole and is used to position the beam body; a clamping claw member, installed on the first support seat; a third drive assembly, driven and connected to the clamping claw member, and the third drive assembly is used to drive the clamping claw member to extend into the opening and clamp the inner wall of the beam body.

[0013] In some embodiments, the welding tool also includes a second guide rail member installed on the support frame, the second guide rail member is located between the second clamping mechanism and the support frame and extends along the length direction of the support frame, the second clamping mechanism includes: a clamping mounting seat, which is slidably connected to the second guide rail member; a tightening portion, which is provided on the clamping mounting seat and is used to apply an upward tightening force to the end of the guide seat; a clamping portion, a connecting rod is connected between the top end of the clamping mounting seat and the clamping portion, and the clamping portion is used to apply a downward force to the guide seat; a fourth drive assembly, which is respectively driven and connected to the tightening portion and the clamping portion.

[0014] In some embodiments, a second drive wheel is provided at the bottom of the clip-on mounting seat, the number of the second guide rail members is two, and the welding tool further includes: a second rack, located between the two guide rail members, the second rack is located between the clip-on mounting seat and the support frame and extends along the width direction of the support frame, the second rack is engaged with the outer peripheral wall of the second drive wheel; a second rotating drive member, which is driven and connected to the second drive wheel and is used to drive the second drive wheel to rotate.

[0015] In some embodiments, the crawler beam further includes a pedal bracket located on one side of the beam body, and the welding tool further includes: a pedal positioning assembly installed on the support frame, located on one side of the beam body and used to limit the engagement with the pedal bracket.

[0016] In some embodiments, the crawler beam also includes a part to be welded located on the side of the beam body away from the support frame, and the welding tool also includes a third clamping mechanism installed on the support frame, the third clamping mechanism includes: a second support seat, located on one side of the width direction of the beam body; a clamping cylinder, the first end of the clamping cylinder is pivotally connected to the top end of the second support seat, and the second end of the clamping cylinder is used to cover the part to be welded or detach from the part to be welded; a clamping block, which is arranged at the second end of the clamping cylinder and is driven by the clamping cylinder, and the clamping block is used to press the part to be welded downward under the driving action of the clamping cylinder.

[0017] The second aspect of the present invention provides a method for welding a crawler beam, which is applied to the welding tooling of the above-mentioned crawler beam. The welding method includes the following steps: controlling the first clamping mechanism to clamp the drive seat; placing the beam body on the beam body positioning mechanism and positioning and locking the beam body; controlling the second clamping mechanism to clamp the guide seat; controlling the linear drive assembly to drive the second clamping mechanism to slide toward the direction close to the beam body, so that the drive seat and the guide seat are respectively pressed against the two ends of the beam body; welding the beam body and the drive seat; welding the beam body and the guide seat.

[0018] In some embodiments, the welding method further includes the following steps: placing the pedal bracket on the pedal positioning assembly; welding the pedal bracket to the beam body; placing the part to be welded on the side of the beam body away from the support frame; controlling the fourth drive assembly to drive the clamping block to clamp the part to be welded; and welding the part to be welded and the beam body.

[0019] The above-mentioned technical solution provides a welding fixture for a crawler beam, wherein the crawler beam includes a beam body and a guide seat and a drive seat respectively located at both ends of the beam body, and the welding fixture includes a support frame and a first clamping mechanism, a second clamping mechanism, a beam body positioning mechanism and a linear drive assembly installed on the support frame. The first clamping mechanism is located at one end of the support frame in the longitudinal direction, and the first clamping mechanism can move along the width direction of the support frame and position and clamp the drive seat from the width direction. The second clamping mechanism is located at the other end of the support frame in the longitudinal direction, and the second clamping mechanism can position and clamp the guide seat. The beam body positioning mechanism is located between the first clamping mechanism and the second clamping mechanism and can position and lock the beam body. The linear drive assembly is driven and connected to the second clamping mechanism to drive the second clamping mechanism to slide along the longitudinal direction, and the second clamping mechanism can apply a clamping force to the end of the guide seat away from the beam body to clamp the beam body, the drive seat and the guide seat. By using the above-mentioned crawler beam welding fixture, the beam body, guide seat and drive seat of the crawler beam can be clamped on the support frame, and after clamping, the three components can be pressed and positioned in the horizontal direction to facilitate the welding machine to weld the three components, thereby improving the welding accuracy, reducing the time required for crawler beam processing, and improving the production efficiency of the crawler beam.

[0020] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without inventive work. In the accompanying drawings:

[0022] Figure 1 A schematic structural diagram of a welding tool for a crawler beam according to an embodiment of the present invention;

[0023] Figure 2 A schematic structural diagram of a crawler beam provided according to an embodiment of the present invention at a first viewing angle;

[0024] Figure 3 A schematic structural diagram of a crawler beam provided according to an embodiment of the present invention at a second viewing angle;

[0025] Figure 4 A schematic diagram of the support frame structure provided according to an embodiment of the present invention;

[0026] Figure 5 A schematic structural diagram of a first clamping mechanism provided according to an embodiment of the present invention;

[0027] Figure 6 A schematic structural diagram of a beam body positioning mechanism according to an embodiment of the present invention;

[0028] Figure 7 A schematic structural diagram of a second clamping mechanism provided according to an embodiment of the present invention;

[0029] Figure 8 A schematic structural diagram of a third clamping mechanism provided according to an embodiment of the present invention;

[0030] Figure 9 The figure is a flow chart of a method for welding a crawler beam according to an embodiment of the present invention.

[0031] Description of Reference Numerals

[0032] 100 Track Beam

[0033] 1 Beam body

[0034] 101 exposure

[0035] 2 guide seat

[0036] 3 drive seat

[0037] 301 reducer installation cavity

[0038] 4 Footrest bracket

[0039] 5 Parts to be welded

[0040] 200 support frame

[0041] 10 First clamping mechanism

[0042] 11 Fixed seat

[0043] 12 Snap-on components

[0044] 13 snap-on claws

[0045] 14 First drive wheel

[0046] 20 Second clamping mechanism

[0047] 21 snap-on mount

[0048] 22 Tightening part

[0049] 23. Clamping part

[0050] 30 Beam body positioning mechanism

[0051] 31 First support seat

[0052] 32 jaws

[0053] 33 Third drive assembly

[0054] 40 linear drive components

[0055] 50 first guide rail

[0056] 60 First rack

[0057] 70 Second guide rail

[0058] 80 Second rack

[0059] 90 Third clamping mechanism

[0060] 91 Second support seat

[0061] 92 Compression Cylinder

[0062] 93 compression block DETAILED DESCRIPTION

[0063] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0064] The following describes a welding tool and a welding method for the crawler beam 100 according to the present invention with reference to the accompanying drawings.

[0065] like Figure 1 As shown, it is a structural schematic diagram of the welding tooling of the crawler beam 100 provided in an embodiment of the present invention; Figure 2 , which is a schematic structural diagram of a crawler beam 100 provided in a first viewing angle according to an embodiment of the present invention; Figure 3 , which is a schematic structural diagram of the crawler beam 100 provided in an embodiment of the present invention at a second viewing angle; Figure 4 FIG. 1 is a schematic diagram of the structure of a support frame 200 according to an embodiment of the present invention. The crawler beam 100 includes a beam body 1 and a guide seat 2 and a drive seat 3 located at both ends of the beam body 1. The welding tool includes the support frame 200 and the following components installed on the support frame 200:

[0066] The first clamping mechanism 10 is located at one end of the support frame 200 in the longitudinal direction. The first clamping mechanism 10 can move along the width direction of the support frame 200 and is used to position and clamp the driving seat 3 in the width direction.

[0067] The second clamping mechanism 20 is located at the other end of the support frame 200 in the longitudinal direction and is used to position and clamp the guide seat 2;

[0068] The beam body positioning mechanism 30 is located between the first clamping mechanism 10 and the second clamping mechanism 20 and is used to position and lock the beam body 1;

[0069] The linear drive assembly 40 is driven and connected to the second clamping mechanism 20. The linear drive assembly 40 is used to drive the second clamping mechanism 20 to slide along the length direction. The second clamping mechanism 20 is used to apply a clamping force to the end of the guide seat 2 away from the beam body 1 to press the beam body 1, the drive seat 3 and the guide seat 2.

[0070] The crawler beam 100 in the prior art usually undergoes a three-step processing procedure during the welding process. First, the various components of the crawler beam 100 are rough-machined; then, the various components after rough machining are placed on a simple tooling, and the various components are clamped and positioned and welded; finally, the welded crawler beam 100 is fine-machined. Because the precision of the simple tooling is relatively poor, if the fine-machined components are directly machined, the dimensions will usually not meet the standards, and fine machining is often required again. The above two welding processes are time-consuming, affecting the production efficiency of the entire machine, resulting in a high processing cost for the crawler beam 100. The welding tooling for the crawler beam 100 provided in the embodiment of the present invention can solve the technical problem of poor precision of the simple tooling mentioned above, thereby improving the production efficiency of the crawler beam 100.

[0071] Specifically, the welding fixture for the crawler beam 100 provided in an embodiment of the present invention includes a support frame 200 and a first clamping mechanism 10, a second clamping mechanism 20, a beam body positioning mechanism 30, and a linear drive assembly 40 mounted on the support frame 200. The support frame 200 can be used to support and mount the first clamping mechanism 10, the second clamping mechanism 20, the beam body positioning mechanism 30, and the linear drive assembly 40, and can also carry the various components of the crawler beam 100. The first clamping mechanism 10 is located at one end of the support frame 200 along the length direction. The first clamping mechanism 10 can position and clamp the drive seat 3 in the width direction to prevent the drive seat 3 from shaking during the welding process and affecting the welding accuracy. Different crawler beams 100 have different welding positions for the drive seat 3. The first clamping mechanism 10 provided in an embodiment of the present invention can be moved along the width direction so that the first clamping mechanism 10 can adapt to different models of crawler beams 100, thereby increasing the versatility of the welding fixture. The second clamping mechanism 20 is located at the other end of the support frame 200 along the length direction and can be used to position and clamp the guide seat 2 to prevent the guide seat 2 from shaking during the welding process and affecting the welding accuracy. The beam body positioning mechanism 30 is located between the first clamping mechanism 10 and the second clamping mechanism 20 and can position and lock the beam body 1. Due to the different lengths of different models of crawler beams 100, if the first clamping mechanism 10, the second clamping mechanism 20 and the crawler beam 100 positioning mechanism cannot be moved along the length direction of the support frame 200, then the welding tool can only be used for welding crawler beams 100 of one length, and the versatility is low. The welding tool of the embodiment of the present invention also includes a linear drive component 40 that can drive the second clamping mechanism 20 to move along the length direction. The linear drive component 40 can be driven so that the second clamping mechanism 20 applies a pressing force to the end of the guide seat 2 away from the beam body 1, so that the guide seat 2 applies a pressing force to the beam body 1, and the guide seat 2, the beam body 1 and the drive seat 3 are pressed together to facilitate precise welding.

[0072] The welding device provided in the embodiment of the present invention is a device for integrally welding the track beam 100. It is provided with a plurality of mechanisms for positioning and clamping the various components of the track beam. The positioning and clamping accuracy is high. The various components after fine machining can be placed on the support frame 200 for welding. The welded track beam 100 has precise dimensions and does not need to be fine-machined again, thereby improving the production and processing efficiency of the track beam 100 and reducing the processing cost.

[0073] In one embodiment, Figure 5As shown, it is a structural schematic diagram of the first clamping mechanism 10 provided according to an embodiment of the present invention. The drive seat 3 is provided with a reducer installation cavity 301, and the first clamping mechanism 10 includes: a fixed seat 11, a clamping assembly 12 and a first drive assembly (not shown in the figure). The clamping assembly 12 is installed on the fixed seat 11 and is provided with a plurality of clamping claws 13 for inserting into the reducer installation cavity 301. The first drive assembly is driven and connected to the clamping claws 13 and is used to drive the clamping claws 13 to clamp or separate from the inner wall of the reducer installation cavity 301. The fixed seat 11 can be used to support the clamping assembly 12 and the first drive assembly, so that the support clamping assembly 12 can support and position the drive seat 3. The drive seat 3 is usually used to install the reducer on the crawler, so a reducer installation cavity 301 is provided that passes through the drive seat 3 in the width direction. The plurality of engaging claws 13 can extend into the reducer mounting cavity 301 along the width direction. The first drive assembly can drive the plurality of engaging claws 13 to expand outward or contract inward, thereby engaging or disengaging the plurality of engaging claws 13 with the inner wall of the reducer mounting cavity 301. The first clamping mechanism 10 described above can precisely clamp the drive seat 3, and the engaging claws 13 can engage with the inner wall of the reducer mounting cavity 301 without affecting the welding between the beam body 1 and the drive seat 3.

[0074] In one embodiment, Figure 5 and Figure 4 As shown, a first driving wheel 14 is provided at the bottom end of the fixed seat 11, and the welding tool also includes a first guide rail member 50, a first rack 60 and a first rotating drive member (not shown in the figure). There are two first guide rail members 50, and the two first guide rail members 50 are both located between the fixed seat 11 and the support frame 200 and extend along the width direction of the support frame 200. The first guide rail member 50 is slidably connected to the fixed seat 11. The first rack 60 is located between the two first guide rail members 50 and extends along the length direction of the support frame 200. The first rack 60 is located between the fixed seat 11 and the support frame 200 and extends along the width direction of the support frame 200. The first rack 60 is engaged with the outer peripheral wall of the first driving wheel 14. When the first driving wheel 14 rotates, it can drive the fixed seat 11 to move in the width direction. The first rotating drive member is drivingly connected to the first driving wheel 14 and is used to drive the first driving wheel 14 to rotate. With the above structure, the position of the fixing frame can be controlled by rotating the first rotary drive member by a preset angle, so that the drive base 3 can be accurately positioned above the fixing base 11. Furthermore, when positioning and clamping different models of crawler beams 100, the drive base 3 can be positioned and clamped at different positions by adjusting the rotation angle of the first rotary drive member.

[0075] In one embodiment, Figure 6The figure shows a schematic diagram of the structure of the beam body positioning mechanism 30 provided according to an embodiment of the present invention. A positioning hole (not shown in the figure) is provided on the side of the beam body 1 facing the support frame 200, and the beam body positioning mechanism 30 includes a first support seat 31 and a positioning pin (not shown in the figure). The first support seat 31 is located between the beam body 1 and the support frame 200 and is used to support the beam body 1 from the bottom. The positioning pin is provided on the side of the first support seat 31 facing the beam body 1. The positioning pin is provided corresponding to the positioning hole and is used to position the beam body 1. The first support seat 31 can support the beam body 1 and the positioning pin from the bottom. The positioning pin is inserted into the positioning hole so that the position of the beam body 1 can be fixed when it is placed on the first support seat 31, so as to facilitate positioning of the beam body 1. The above-mentioned beam body positioning mechanism 30 can accurately position the beam body 1 so that the beam body 1 remains fixed in position when the beam body 1 is welded to other components.

[0076] In a specific embodiment, there are multiple locating pins and multiple locating holes, and the positions of the multiple locating pins and the multiple locating holes correspond one to one, so that the positioning of the beam body 1 is more accurate.

[0077] In one embodiment, the beam body 1 is a hollow sleeve structure, and an opening 101 is provided on the side of the beam body 1 facing the support frame 200. The beam body positioning mechanism 30 further includes a clamping member 32 and a third drive assembly 33. The clamping member 32 is mounted on the first support seat 31, and the third drive assembly 33 is driven and connected to the clamping member 32. The third drive assembly 33 is used to drive the clamping member 32 to extend into the opening 101 and clamp the inner wall of the beam body 1. The third drive assembly 33 can drive the clamping member 32 to expand or contract, so that the clamping member 32 can clamp the inner wall of the beam body 1 or separate from the inner wall of the beam body 1. By using the above-mentioned beam body positioning mechanism 30, the beam body 1 can be clamped after being positioned, thereby preventing the beam body 1 from shaking during the welding process and affecting the welding quality.

[0078] In one specific embodiment, one end of the clamping member 32 is hinged to the first support base 31, and the third drive assembly 33 is capable of driving the clamping member 32 to rotate about the hinge point, thereby expanding or contracting the clamping member 32. When the clamping member 32 is in the contracted state, the clamping member 32 can extend into the opening 101 and be spaced from the inner wall of the beam body 1. When the clamping member 32 is in the extended state, the clamping member 32 can clamp the inner wall of the beam body 1 to limit and secure the beam body 1. This structure is simple, with fewer intermediate links, and can provide a more stable clamping of the beam body 1.

[0079] In one embodiment, Figure 7, which is a schematic structural diagram of the second clamping mechanism 20 provided according to an embodiment of the present invention. The welding tool also includes a second guide rail member 70 installed on the support frame 200. The second guide rail member 70 is located between the second clamping mechanism 20 and the support frame 200 and extends along the length direction of the support frame 200. The use of the above-mentioned second guide rail member 70 can make the second clamping mechanism 20 move more smoothly under the driving action of the linear drive assembly 40, thereby improving the movement accuracy. The second clamping mechanism 20 includes a clamping mounting seat 21, a tightening portion 22, a pressing portion 23 and a fourth drive assembly (not shown in the figure). The clamping mounting seat 21 is slidably connected to the second guide rail member 70. The pressing portion 22 is provided on the clamping mounting seat 21 and is used to apply an upward pressing force to the end of the guide seat 2. A connecting rod is connected between the top of the clamping mounting seat 21 and the pressing portion 23 of the clamping portion 23. The pressing portion 23 is used to apply a downward force to the guide seat 2. The fourth driving assembly is driven and connected to the pressing portion 22 and the pressing portion 23 respectively. The fourth driving assembly can provide driving force for the pressing portion 22 and the pressing portion 23 respectively. The clamping mounting seat 21 can be used to install the pressing portion 22, the pressing portion 23 and the connecting rod. The pressing portion 22 is installed on the clamping mounting seat 21 and can be used to apply an upward pressing force to the end of the guide seat 2. The pressing portion 23 is located above the guide seat 2 and can apply a downward force to the guide seat 2 from above the guide seat 2. The pressing portion 22 and the pressing portion 23 cooperate with each other to clamp the guide seat 2. The connecting rod can connect the pressing portion 22 and the pressing portion 23, and the driving force of the fourth driving assembly can be transmitted to the pressing portion 23 through the connecting rod. In a specific embodiment, the guide seat 2 is provided with a U-shaped groove (not shown in the figure) along the length direction of the support frame 200, and the pressing portion 23 is located inside the U-shaped groove. The U-shaped groove is provided with a vertical plate and a horizontal plate. The pressing portion 23 is respectively in contact with the vertical plate and the horizontal plate to tighten the guide seat 2 and apply a pressing force to the guide seat 2 from above. The above-mentioned second clamping mechanism 20 is in contact with multiple positions of the guide seat 2, so that the guide seat 2 can be clamped more stably by the second clamping mechanism 20.

[0080] In one embodiment, Figure 4As shown, the bottom of the clamping mount 21 is provided with a second drive wheel (not shown in the figure), the number of the second guide rail members 70 is two, and the welding tool also includes: a second rack 80 and a second rotary drive member (not shown in the figure), the second rack 80 is located between the two guide rail members, the second rack 80 is located between the clamping mount 21 and the support frame 200 and extends along the width direction of the support frame 200, the second rack 80 is engaged with the outer peripheral wall of the second drive wheel, and when the second drive wheel rotates, it can drive the clamping mount 21 to move along the width direction. The second rotary drive member is connected to the second drive wheel and is used to drive the second drive wheel to rotate. With the above structure, the position of the clamping mount 21 can be controlled by rotating the second rotary drive member at a preset angle, so that the guide seat 2 above the clamping mount 21 can be accurately positioned. Moreover, when positioning and clamping different models of crawler beams 100, the guide seat 2 can be positioned and clamped at different positions by adjusting the rotation angle of the second rotary drive member.

[0081] In one embodiment, the track beam 100 further includes a footrest bracket 4 located on one side of the beam body 1. The welding tool further includes a footrest positioning assembly (not shown) mounted on the support frame 200. The footrest positioning assembly is located on one side of the beam body 1 and is configured to engage with the footrest bracket 4 in a limited position. The footrest bracket 4 is located on one side of the beam body 1. Once the height of the support frame 200 and the beam body 1 is determined, the footrest positioning assembly can be set at a specified height to assist in positioning the footrest bracket 4, facilitating welding of the footrest bracket 4 and improving the production efficiency of the track beam 100.

[0082] In one embodiment, Figure 8, which is a schematic structural diagram of the third clamping mechanism 90 provided in an embodiment of the present invention. The crawler beam 100 further includes a workpiece 5 to be welded located on the side of the beam body 1 facing away from the support frame 200. The welding tool further includes a third clamping mechanism 90 mounted on the support frame 200. The third clamping mechanism 90 includes: a second support seat 91, a clamping cylinder 92, and a clamping block 93. The second support seat 91 is located on one side in the width direction of the beam body 1. The first end of the clamping cylinder 92 is pivotally connected to the top end of the second support seat 91. The second end of the clamping cylinder 92 is used to cover or detach from the workpiece 5 to be welded. The clamping block 93 is provided at the second end of the clamping cylinder 92 and is driven by the clamping cylinder 92. The clamping block 93 is used to press the workpiece 5 to be welded downward under the driving action of the clamping cylinder 92. The second support seat 91 is located on one side of the beam body 1 in the width direction. The second support seat 91 can be used to install a clamping cylinder 92 and a clamping block 93, and supports the clamping cylinder 92 and the clamping block 93 to be higher than the beam body 1. The clamping cylinder 92 is pivotally connected to the second support seat 91. When the clamping cylinder 92 is placed on the workpiece 5 to be welded, the clamping cylinder 92 can drive the clamping block 93 to clamp the workpiece 5 to be welded. When the clamping cylinder 92 is separated from the workpiece 5 to be welded, it can avoid the beam body 1, facilitating the placement of the beam body 1 on the beam body positioning mechanism 30. The use of the third clamping mechanism 90 can facilitate the clamping and positioning of the workpiece 5 to be welded on the side of the beam body 1 away from the support frame 200, thereby improving the efficiency of the welding process.

[0083] In one embodiment, a method for welding a crawler beam 100 is provided, which is applied to the welding tool of the crawler beam 100. Figure 9 , Figure 9 This is a flow chart of a method for welding a crawler beam according to an embodiment of the present invention. Figure 9 The welding method shown includes the following steps:

[0084] S101, controlling the first clamping mechanism 10 to clamp the driving seat 3;

[0085] S102, placing the beam body 1 on the beam body positioning mechanism 30 and locking the beam body 1 in position;

[0086] S103, controlling the second clamping mechanism 20 to clamp the guide seat 2;

[0087] S104, controlling the linear drive assembly 40 to drive the second clamping mechanism 20 to slide toward the beam body 1, so that the drive seat 3 and the guide seat 2 are respectively pressed against the two ends of the beam body 1;

[0088] S105, welding the beam body 1 and the driving seat 3;

[0089] S106, welding the beam body 1 and the guide seat 2.

[0090] During the welding process of the track beam 100, the first clamping mechanism 10 can be controlled to clamp the drive seat 3, and then the beam body 1 can be prevented from being positioned on the beam body positioning mechanism 30 and locked to prevent the movement of components during the welding process of the beam body 1 and the drive seat 3. Subsequently, the second clamping mechanism 20 is controlled to clamp the guide seat, and the linear drive assembly 40 is controlled to drive the second clamping mechanism 20 to slide in the direction close to the beam body 1, so that the drive seat 3 and the guide seat 2 are respectively pressed against the two ends of the beam body 1. After pressing, the beam body 1, the drive seat 3 and the guide seat 2 are difficult to move relative to each other during the welding process, which facilitates the welding machine to weld the three together. The above-mentioned welding method of the track beam 100 can accurately position and clamp the various components of the track beam 100, preventing the components of the track beam 100 from shaking during the welding process, resulting in poor welding effect. In addition, the various components are components that have been processed by precision machining and do not need to be processed again, thereby improving the production and processing efficiency of the track beam 100.

[0091] In one embodiment, the welding method further includes the following steps: placing the pedal bracket 4 on the pedal positioning assembly; welding the pedal bracket 4 to the beam body 1; placing the part to be welded 5 on the side of the beam body 1 away from the support frame 200; controlling the fourth drive assembly to drive the pressing block 93 to press the part to be welded 5; and welding the part to be welded 5 to the beam body 1. The pedal bracket 3 and the part to be welded 5 are additional components on the beam body 1. If a simple tool is used for welding, the half-welded crawler beam 100 needs to be transferred to the simple tool again, which reduces the welding efficiency. However, the embodiment of the present invention clamps the pedal bracket 4 and the part to be welded 5 respectively through the pedal positioning assembly and the third clamping mechanism 90 on the support frame, eliminating the need to transfer the half-welded crawler beam 100 again, thereby improving the welding efficiency of the crawler beam 100, and being able to accurately position the pedal bracket 4 and the part to be welded 5 on the crawler beam 100 to facilitate welding of the pedal bracket 4 and the part to be welded 5.

[0092] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0093] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0094] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean 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 invention. In this specification, the schematic representations of the above terms do 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 and features of different embodiments or examples without contradiction.

[0095] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A welding tool for a crawler beam, characterized in that: The crawler beam (100) comprises a beam body (1) and a guide seat (2) and a drive seat (3) respectively located at two ends of the beam body (1); the welding tool comprises a support frame (200) and: A first clamping mechanism (10) is located at one end of the support frame (200) in the length direction, and the first clamping mechanism (10) is movable along the width direction of the support frame (200) and is used to position and clamp the driving seat (3) in the width direction; A second clamping mechanism (20) is located at the other end of the support frame (200) in the length direction and is used to position and clamp the guide seat (2); A beam body positioning mechanism (30) is located between the first clamping mechanism (10) and the second clamping mechanism (20) and is used to position and lock the beam body (1); A linear drive assembly (40) is drivably connected to the second clamping mechanism (20), wherein the linear drive assembly (40) is used to drive the second clamping mechanism (20) to slide along the length direction, and the second clamping mechanism (20) is used to apply a clamping force to the end of the guide seat (2) away from the beam body (1), so as to clamp the beam body (1), the drive seat (3) and the guide seat (2).

2. The welding tool for crawler beam according to claim 1, characterized in that: The driving seat (3) is provided with a reducer installation cavity (301), and the first clamping mechanism (10) comprises: Fixed seat (11); A clamping assembly (12) is mounted on the fixing seat (11) and is provided with a plurality of clamping claws (13) for inserting into the reducer installation cavity (301); The first driving assembly is drivingly connected to the engaging claw (13) and is used to drive the engaging claw (13) to engage with or separate from the inner wall of the reducer installation cavity (301).

3. The welding tool for crawler beam according to claim 2, characterized in that: A first driving wheel (14) is disposed at the bottom end of the fixing seat (11), and the welding tool further comprises: Two first guide rail members (50), each of which is located between the fixing seat (11) and the support frame (200) and extends along the width direction of the support frame (200), and the first guide rail member (50) is slidably connected to the fixing seat (11); a first rack (60), located between the two first guide rail members (50) and extending along the length direction of the support frame (200); the first rack (60) is located between the fixing seat (11) and the support frame (200) and extends along the width direction of the support frame (200); the first rack (60) is meshed with the outer peripheral wall of the first driving wheel (14); A first rotating driving member is drivingly connected to the first driving wheel (14) and is used to drive the first driving wheel (14) to rotate.

4. The welding tool for crawler beam according to claim 1, characterized in that: The beam body (1) is provided with a positioning hole on a side facing the support frame (200); the beam body (1) is a hollow sleeve structure; the beam body (1) is provided with an opening (101) on a side facing the support frame (200); and the beam body positioning mechanism (30) comprises: A first support seat (31), located between the beam body (1) and the support frame (200) and used to support the beam body (1) from the bottom; A positioning pin is arranged on a side of the first support seat (31) facing the beam body (1), the positioning pin is arranged corresponding to the positioning hole and is used to position the beam body (1); A clamping jaw (32) mounted on the first supporting seat (31); The third driving assembly (33) is drivingly connected to the clamping jaw member (32), and the third driving assembly (33) is used to drive the clamping jaw member (32) to extend into the opening (101) and clamp the inner wall of the beam body (1).

5. The welding tool for crawler beam according to claim 1, characterized in that: The welding tool further comprises a second guide rail member (70) mounted on the support frame (200), the second guide rail member (70) being located between the second clamping mechanism (20) and the support frame (200) and extending along the length direction of the support frame (200), the second clamping mechanism (20) comprising: A clamping mounting seat (21) slidably connected to the second guide rail member (70); A tightening portion (22) is provided on the clamping mounting seat (21) and is used to apply an upward tightening force to the end of the guide seat (2); A clamping portion (23), a connecting rod being connected between the top end of the clamping mounting seat (21) and the clamping portion (23), and the clamping portion (23) being used to apply a downward force to the guide seat (2); A fourth driving assembly is drivingly connected to the pressing portion (22) and the pressing portion (23) respectively.

6. The welding tool for crawler beam according to claim 5, characterized in that: A second driving wheel is arranged at the bottom of the clamping mounting seat (21), the number of the second guide rail members (70) is two, and the welding tool further comprises: a second rack (80) located between the two guide rail members, the second rack (80) being located between the clamping mounting seat (21) and the support frame (200) and extending along the width direction of the support frame (200), the second rack (80) being meshed with the outer peripheral wall of the second driving wheel; The second rotating driving member is drivingly connected to the second driving wheel and is used to drive the second driving wheel to rotate.

7. The welding tool for crawler beam according to any one of claims 1 to 6, characterized in that: The crawler beam (100) further comprises a footrest bracket (4) located on one side of the beam body (1), and the welding tool further comprises: A pedal positioning assembly is located on one side of the beam body (1) and is used for position-limiting clamping with the pedal bracket (4).

8. The welding tool for crawler beam according to any one of claims 1 to 6, characterized in that: The crawler beam (100) further comprises a part (5) to be welded located on a side of the beam body (1) away from the support frame (200), and the welding tool further comprises a third clamping mechanism (90) mounted on the support frame (200), and the third clamping mechanism (90) comprises: A second support seat (91) is located on one side of the beam body (1) in the width direction; A pressing cylinder (92), wherein a first end of the pressing cylinder (92) is pivotally connected to a top end of the second support seat (91), and a second end of the pressing cylinder (92) is used to cover the workpiece to be welded (5) or to be detached from the workpiece to be welded (5); A pressing block (93) is arranged at the second end of the pressing cylinder (92) and is drivingly connected to the pressing cylinder (92). The pressing block (93) is used to press the workpiece (5) to be welded downward under the driving action of the pressing cylinder (92).

9. A method for welding a crawler beam, characterized in that: A welding tool for a crawler beam (100) according to any one of claims 1 to 8, wherein the welding method The following steps are involved: Controlling the first clamping mechanism (10) to clamp the driving seat (3); Placing the beam body (1) on the beam body positioning mechanism (30) and positioning and locking the beam body (1); Controlling the second clamping mechanism (20) to clamp the guide (2) seat; Controlling the linear drive assembly (40) to drive the second clamping mechanism (20) to slide in a direction close to the beam body (1), so that the drive seat (3) and the guide seat (2) are respectively pressed against two ends of the beam body (1); Welding the beam body (1) and the driving seat (3); The beam body (1) and the guide seat (2) are welded.

10. The method for welding a crawler beam according to claim 9, characterized in that: The welding method further comprises the following steps: Place the foot pedal bracket (4) on the foot pedal positioning assembly; Welding the foot pedal bracket (4) to the beam body (1); Placing the part to be welded (5) on the side of the beam body (1) facing away from the support frame (200); Controlling the fourth driving assembly to drive the pressing block (93) to press the workpiece to be welded (5); The part to be welded (5) and the beam body (1) are welded.

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