U-shaped beam tailor-welding tool for chassis of medium-sized excavator
By using a limit seat and a hydraulic drive mechanism in the welding fixture for the U-shaped beam of a medium-sized excavator chassis, multi-directional clamping and fixing are achieved, solving the problem of welding misalignment caused by insufficient clamping force in the existing technology and ensuring the accuracy of welding.
Patent Information
- Application Number
- CN202422814868.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing welding fixtures for U-shaped beams on medium-sized excavator chassis cannot effectively clamp and fix multiple sections of U-shaped beams on the chassis at the same time, which can easily lead to misalignment during welding.
The system employs a welded table body and multiple limiting, pressing, clamping, and pushing drive mechanisms. Through the combination of limiting seats, frames, fixing cylinders, and hydraulic cylinders, it achieves multi-directional clamping and fixing of multiple chassis U-shaped beams.
This effectively prevents welding misalignment caused by insufficient clamping force, ensuring the smooth welding of the U-shaped beam of the medium-sized excavator chassis.
Smart Images

Figure CN223455390U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of splicing and welding tooling, especially to medium excavator chassis U type roof splicing and welding tooling. BACKGROUND
[0002] At present, the medium excavator chassis U type roof is spliced and welded by multiple sections, and a special splicing and welding tooling is needed to fix the assembled multiple section chassis U type roof during the splicing and welding process to ensure the accuracy of subsequent splicing and welding forming.
[0003] The existing medium excavator chassis U type roof splicing and welding tooling has the following problems: it cannot clamp and fix multiple section medium excavator chassis U type roofs at the same time, and the clamping force is low, which may cause splicing and welding misalignment during the clamping process. Therefore, the medium excavator chassis U type roof splicing and welding tooling is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0004] In view of the deficiencies of the prior art, the utility model provides a medium excavator chassis U type roof splicing and welding tooling to solve the above problems.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] The medium excavator chassis U type roof splicing and welding tooling comprises a splicing and welding table body and a chassis U type roof, the top side of the splicing and welding table body is fixedly installed with a limiting seat, multiple chassis U type roofs are placed in alignment on the top side of the splicing and welding table body and abut against one side of the limiting seat corresponding to the chassis U type roof, multiple frames are fixedly installed on the top side of the splicing and welding table body, a fixing cylinder is fixedly installed in the frame, a cylinder groove is formed in the fixing cylinder, a baffle is installed in the cylinder groove through a connecting mechanism, the baffle abuts against one side of the chassis U type roof, a pressing drive mechanism for the chassis U type roof is arranged on the frame, multiple first fixing seats are fixedly installed on the top side of the splicing and welding table body, a clamping drive mechanism for the chassis U type roof is arranged on the first fixing seat, a second fixing seat is fixedly installed on the top side of the splicing and welding table body, and a pushing drive mechanism for the chassis U type roof is arranged on the second fixing seat.
[0007] Preferably, the multiple frames are arranged at equal distances, and the multiple frames are respectively located on one side corresponding to the chassis U type roof.
[0008] Preferably, the connecting mechanism comprises a mounting block and a connecting rod, the mounting block is movably installed in the cylinder groove, one side of the mounting block is fixedly installed with one end of the connecting rod, and the other end of the connecting rod movably penetrates out of the fixing cylinder and is fixedly connected with the baffle. By abutting the chassis U type roof against one side of the baffle, the mounting block is abutted against the inner wall of one side of the cylinder groove, and the chassis U type roof is limited.
[0009] Preferably, the pressing driving mechanism comprises a first hydraulic cylinder and an arc-shaped pressing plate, the first hydraulic cylinder is fixedly installed on the frame, an output end of the first hydraulic cylinder is fixedly installed with the arc-shaped pressing plate, the arc-shaped pressing plate abuts against a top side of a corresponding chassis U-shaped beam, and multiple chassis U-shaped beams are pressed downward by the multiple pressing driving mechanisms respectively.
[0010] Preferably, the clamping driving mechanism comprises a second hydraulic cylinder and a clamping plate, the second hydraulic cylinder is fixedly installed on the first fixed seat, an output end of the second hydraulic cylinder is fixedly installed with the clamping plate, the clamping plate abuts against a side of a corresponding chassis U-shaped beam, and multiple chassis U-shaped beams are clamped from the side by the multiple clamping driving mechanisms respectively.
[0011] Preferably, the pushing driving mechanism comprises a third hydraulic cylinder and a pushing plate, the third hydraulic cylinder is fixedly installed on the second fixed seat, an output end of the third hydraulic cylinder is fixedly installed with the pushing plate, the pushing plate abuts against a side of a corresponding chassis U-shaped beam, and one end of multiple chassis U-shaped beams is clamped and pushed by the pushing driving mechanism.
[0012] Compared with the prior art, the medium-sized excavator chassis U-shaped beam tailor-welding tool has the beneficial effects that: multiple chassis U-shaped beams are sequentially abutted against a side of a corresponding baffle, the first chassis U-shaped beam is clamped on a side of a limiting seat, one end of the multiple chassis U-shaped beams is clamped and pushed by the pushing driving mechanism, the multiple chassis U-shaped beams are clamped from the side by the multiple clamping driving mechanisms being opened, the multiple chassis U-shaped beams are pressed downward by the multiple pressing driving mechanisms being opened, the multiple chassis U-shaped beams are clamped and fixed in multiple directions, the tailor-welding mispositioning caused by low clamping force is reduced, and the tailor-welding operation of the medium-sized excavator chassis U-shaped beam is ensured to be carried out smoothly. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model;
[0014] Figure 2 It is a structure schematic view of the fixed cylinder local section of the utility model;
[0015] Figure 3 It is a structure schematic view of the utility model Figure 2 It is a structure schematic view of the middle A part of the utility model;
[0016] Figure 4 It is a structure schematic view of the explosion angle of the utility model.
[0017] In the figure: 1, the spliced table body; 2, the chassis U-shaped beam; 3, the limiting seat; 4, the frame; 5, the fixed cylinder; 6, the cylinder groove; 7, the mounting block; 8, the connecting rod; 9, the baffle; 10, the first hydraulic oil cylinder; 11, the arc-shaped pressing plate; 12, the first fixed seat; 13, the second hydraulic oil cylinder; 14, the clamping plate; 15, the second fixed seat; 16, the third hydraulic oil cylinder; 17, the push plate. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0019] Embodiment: refer to Figures 1-4 , the medium excavator chassis U-shaped beam splicing tool, including splicing table body 1 and chassis U-shaped beam 2, the top side of splicing table body 1 is fixedly installed with limiting seat 3, multiple chassis U-shaped beams 2 are placed on the top side of splicing table body 1 and the side corresponding to the chassis U-shaped beam 2 is abutted on the side of limiting seat 3, multiple frames 4 are respectively fixedly installed on the top side of splicing table body 1, the fixed cylinder 5 is fixedly installed in the frame 4, the cylinder groove 6 is formed in the fixed cylinder 5, the baffle 9 is installed in the cylinder groove 6 through the connecting mechanism, the baffle 9 is attached to the side of chassis U-shaped beam 2, the pressing drive mechanism for chassis U-shaped beam 2 is arranged on the frame 4, the pressing drive mechanism includes the first hydraulic oil cylinder 10 and the arc-shaped pressing plate 11, the first hydraulic oil cylinder 10 is fixedly installed on the frame 4, the output end of the first hydraulic oil cylinder 10 is fixedly installed with the arc-shaped pressing plate 11, the arc-shaped pressing plate 11 is abutted on the top side of the corresponding chassis U-shaped beam 2, multiple chassis U-shaped beams 2 are pressed and held downwards by multiple pressing drive mechanisms respectively; multiple first fixed seats 12 are respectively fixedly installed on the top side of splicing table body 1, the clamping drive mechanism for chassis U-shaped beam 2 is arranged on the first fixed seat 12, the clamping drive mechanism includes the second hydraulic oil cylinder 13 and the clamping plate 14, the second hydraulic oil cylinder 13 is fixedly installed on the first fixed seat 12, the output end of the second hydraulic oil cylinder 13 is fixedly installed with the clamping plate 14, the clamping plate 14 is abutted on the side of the corresponding chassis U-shaped beam 2, multiple chassis U-shaped beams 2 are clamped from the side by multiple clamping drive mechanisms respectively; the second fixed seat 15 is fixedly installed on the top side of splicing table body 1, the push drive mechanism for chassis U-shaped beam 2 is arranged on the second fixed seat 15, the push drive mechanism includes the third hydraulic oil cylinder 16 and the push plate 17, the third hydraulic oil cylinder 16 is fixedly installed on the second fixed seat 15, the output end of the third hydraulic oil cylinder 16 is fixedly installed with the push plate 17, the push plate 17 is abutted on the side of the corresponding chassis U-shaped beam 2, one end of multiple chassis U-shaped beams 2 is conveniently pushed and clamped by the push drive mechanism.
[0020] Further, the plurality of frames 4 are arranged equidistantly, and each frame 4 is located at one side of the corresponding chassis U-shaped beam 2.
[0021] Further, the connecting mechanism comprises a mounting block 7 and a connecting rod 8, the mounting block 7 is movably installed in the barrel groove 6, one side of the mounting block 7 is fixedly installed with one end of the connecting rod 8, the other end of the connecting rod 8 movably penetrates the outside of the fixed barrel 5 and is fixedly connected with the baffle 9, by placing the chassis U-shaped beam 2 against one side of the baffle 9, the mounting block 7 is placed against the inner wall of one side of the barrel groove 6, so as to limit the chassis U-shaped beam 2.
[0022] In use: when welding multiple chassis U-shaped beams 2, the welder places the chassis U-shaped beam 2 on the welding table 1, and pushes the first baffle 9 with the chassis U-shaped beam 2, so that the connecting rod 8 drives the mounting block 7 to slide in the barrel groove 6, and the mounting block 7 is placed against the inner wall of one side of the barrel groove 6, at this time the chassis U-shaped beam 2 is placed against the limiting seat 3 and one side of the first baffle 9, repeat the operation, and place the remaining chassis U-shaped beams 2 in alignment, then open the third hydraulic cylinder 16 to push the push plate 17 to push and clamp one end of the multiple chassis U-shaped beams 2, then open the multiple second hydraulic cylinders 13 to make the multiple clamping plates 14 clamp the multiple chassis U-shaped beams 2 from the side, then open the multiple first hydraulic cylinders 10 to make the multiple arc-shaped pressing plates 11 press and hold the multiple chassis U-shaped beams 2 downward, so as to complete the clamping and fixing of the multiple chassis U-shaped beams 2, which is convenient for subsequent welding operation of the multiple chassis U-shaped beams 2; therefore, the welding fixture in the case sequentially places the multiple chassis U-shaped beams 2 against one side of the corresponding baffle 9, so that the first chassis U-shaped beam 2 is attached to one side of the limiting seat 3, then the push and clamp driving mechanism is used to push and clamp one end of the multiple chassis U-shaped beams 2, the multiple clamping driving mechanisms are opened to clamp the multiple chassis U-shaped beams 2 from the side, then the multiple pressing driving mechanisms are opened to press and hold the multiple chassis U-shaped beams 2 downward, so as to realize the clamping and fixing of the multiple chassis U-shaped beams 2 in multiple directions, reduce the misalignment caused by low clamping force, and ensure the smooth progress of the welding operation of the chassis U-shaped beam 2 of the medium excavator.
[0023] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0024] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A medium excavator chassis U-beam tailor-welding tooling, comprising a tailor-welding table body (1) and a chassis U-beam (2), characterized in that, The top side of the spliced table body (1) is fixedly installed with a limiting seat (3), a plurality of bottom disc U-shaped beams (2) are aligned and placed on the top side of the spliced table body (1) and abut against one side of the limiting seat (3), a plurality of frames (4) are respectively fixedly installed on the top side of the spliced table body (1), a fixed cylinder (5) is fixedly installed in the frame (4), a cylinder groove (6) is formed in the fixed cylinder (5), a baffle (9) is installed in the cylinder groove (6) through a connecting mechanism, the baffle (9) is attached to one side of the bottom disc U-shaped beam (2), a pressing driving mechanism for the bottom disc U-shaped beam (2) is arranged on the frame (4), a plurality of first fixing seats (12) are respectively fixedly installed on the top side of the spliced table body (1), a clamping driving mechanism for the bottom disc U-shaped beam (2) is arranged on the first fixing seat (12), and a second fixing seat (15) is fixedly installed on the top side of the spliced table body (1). A pushing driving mechanism for the bottom disc U-shaped beam (2) is arranged on the second fixing seat (15).
2. The medium excavator chassis u-beam tailor-welding tooling of claim 1, wherein, A plurality of frames (4) are arranged at equal intervals, and a plurality of frames (4) are respectively located on one side of the corresponding bottom disc U-shaped beam (2).
3. The medium excavator chassis U-beam tailor-welding tooling of claim 1, wherein, The connecting mechanism comprises an installation block (7) and a connecting rod (8), the installation block (7) is movably installed in the cylinder groove (6), one side of the installation block (7) is fixedly installed with one end of the connecting rod (8), and the other end of the connecting rod (8) movably penetrates out of the fixed cylinder (5) and is fixedly connected with the baffle (9).
4. The medium excavator chassis u-beam tailor-welding tooling of claim 1, wherein, The pressing driving mechanism comprises a first hydraulic oil cylinder (10) and an arc-shaped pressing plate (11), the first hydraulic oil cylinder (10) is fixedly installed on the frame (4), the output end of the first hydraulic oil cylinder (10) is fixedly installed with the arc-shaped pressing plate (11), and the arc-shaped pressing plate (11) abuts against the top side of the corresponding bottom disc U-shaped beam (2).
5. The medium excavator chassis u-beam tailor-welding tooling of claim 1, wherein, The clamping driving mechanism comprises a second hydraulic oil cylinder (13) and a clamping plate (14), the second hydraulic oil cylinder (13) is fixedly installed on the first fixing seat (12), the output end of the second hydraulic oil cylinder (13) is fixedly installed with the clamping plate (14), and the clamping plate (14) abuts against one side of the corresponding bottom disc U-shaped beam (2).
6. The medium excavator chassis u-beam tailor welding tooling of claim 1, wherein, The pushing driving mechanism comprises a third hydraulic oil cylinder (16) and a pushing plate (17), the third hydraulic oil cylinder (16) is fixedly installed on the second fixing seat (15), the output end of the third hydraulic oil cylinder (16) is fixedly installed with the pushing plate (17), and the pushing plate (17) abuts against one side of the corresponding bottom disc U-shaped beam (2).