A rectangular piece surfacing tool

Abstract

The utility model relates to welding tool fixture technical field, concretely relates to a rectangular piece surfacing tool, including frock board, the frock board is U-shaped board and it includes bottom plate and the side plate that extends upwards respectively in the two ends of bottom plate is right angle, the two side plates of frock board all are equipped with the positioning groove for accommodating rectangular piece body, the positioning groove includes the upper positioning section and lower positioning section that communicate and constitute the ladder groove, the lower positioning section bottom of positioning groove sets up the limit boss, rectangular piece body end face sets up the positioning pin hole, the bottom plate of frock board sets up the positioning pin axle with positioning pin hole cooperation, the bottom plate of frock board still sets up the connecting hole for connecting with the workbench of positioner. The utility model through limit boss and positioning pin axle cooperation jointly realize the positioning of rectangular piece, utilize the multi -angle rotation function that positioner workbench possesses in the surfacing process, ensure all -round overhead welding effectively guarantee the welding quality, and improve welding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding fixtures and jigs, specifically to a rectangular component welding fixture. Background Technology

[0002] Rectangular components have a wide range of applications in tunnel construction due to their inherent properties. For example, they can be used to make support seats for hydraulic propulsion cylinders. To improve the wear resistance and corrosion resistance of rectangular components or to repair their worn surfaces, surface strengthening treatment using welding techniques is often employed for these products.

[0003] In the process of surfacing special materials around a rectangular part, existing technologies present several problems that urgently need to be addressed. Firstly, during the side surfacing stage, gravity causes the rectangular part to slip, leading to inconsistent weld quality. Secondly, bottom welding results in an overhead weld. Overhead welds are more difficult to weld and have lower efficiency, requiring workers to spend more time and effort. Therefore, there is an urgent need for a structurally sound, accurately positioned fixture for surfacing rectangular parts that can be used with a positioner to solve these technical challenges and improve welding efficiency and quality. Summary of the Invention

[0004] To address the problems encountered in the process of surfacing special materials around a rectangular part, such as the easy slippage of the rectangular part due to gravity during side welding, leading to unstable welding quality, and the formation of overhead welds on the bottom surface, which are difficult and inefficient, this invention proposes a rectangular part surfacing welding fixture. This fixture is securely installed on the worktable of a positioner. A limiting boss and a positioning pin work together to position the rectangular part. During the surfacing process, the multi-angle rotation function of the positioner's worktable ensures welding quality from a top-down perspective throughout the process, while also improving welding efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A rectangular component welding fixture includes a fixture plate, which is U-shaped and includes a base plate and side plates extending upwards at right angles at both ends of the base plate. Each side plate has a positioning groove for accommodating the rectangular component. The positioning groove includes an upper positioning section and a lower positioning section that connect to form a stepped groove. A limiting boss is provided at the bottom of the lower positioning section. A positioning pin hole is provided on the end face of the rectangular component. A positioning pin shaft that mates with the positioning pin hole is provided on the base plate of the fixture plate. A connection hole for connecting to the worktable of a positioner is also provided on the base plate of the fixture plate. The fixture is fixed to the worktable of the positioner through the aforementioned connection hole. The positioning of the rectangular component is achieved by the cooperation of the limiting boss and the positioning pin shaft. During the welding process, the multi-angle rotation function of the positioner's worktable is used to adjust the rectangular component to a suitable welding position, thereby ensuring that each welding surface of the rectangular component is welded from a top-down perspective. This top-down welding effectively guarantees welding quality and improves welding efficiency.

[0006] Furthermore, each of the two side plates of the tooling plate has several threaded holes along its length, and clamping bolts are threaded into these holes. The clamping bolts are used to press the rectangular part body into the positioning groove to ensure that the rectangular part body remains in contact with the tooling plate during the welding process.

[0007] Furthermore, both ends of the rectangular component extend beyond the tooling plate, and arc-starting plates are provided on the upper and lower end faces of the portion of the rectangular component extending beyond the tooling plate. The function of the arc-starting plates is to prevent defects caused by directly striking the arc on the rectangular component during the welding process.

[0008] Furthermore, a mounting plate is provided on the base plate of the tooling plate. The mounting plate is L-shaped and includes a horizontal portion parallel to the base plate of the tooling plate and a vertical portion parallel to the side plate of the tooling plate. A through hole is vertically opened on the end face of the vertical portion of the mounting plate, and the positioning pin is disposed in the through hole, with both ends of the positioning pin extending out of the through hole. When installing the rectangular part body, the operator can easily insert the positioning pin into the positioning pin hole of the rectangular part body; when it is necessary to replace the positioning pin, there is no need to perform complicated disassembly of the tooling plate, but only through the extended portion.

[0009] Furthermore, the limiting boss extends beyond the horizontal portion of the mounting plate. This structural arrangement prevents the mounting plate from interfering with the rectangular component body and prioritizes contact between the limiting boss and the rectangular component body.

[0010] Furthermore, the width of the upper positioning section of the positioning groove is smaller than the width of the lower positioning section. When the rectangular part is placed into the positioning groove, the narrower upper positioning section will constrain the upper part of the rectangular part to prevent it from swaying significantly in the horizontal direction; while the wider lower positioning section provides more space for the lower part of the rectangular part, and together with the limiting boss, it can further restrict the movement of the rectangular part.

[0011] The beneficial effects of this utility model through the above technical solution are as follows: In actual operation, the rectangular component welding fixture provided by this utility model is first securely installed on the worktable of the positioner. After installation, the rectangular component is positioned. The rectangular component is placed in the positioning groove of the fixture plate, with the limiting boss contacting it first. Then, the operator inserts the positioning pin into the positioning pin hole of the rectangular component. The limiting boss and the positioning pin work together to position the rectangular component. Before welding begins, an arc-starting plate is placed on the ends of the rectangular component that extend beyond the fixture plate to guide the arc and prevent welding defects caused by directly starting the arc on the rectangular component. During welding, the multi-angle rotation function of the positioner's worktable is used to adjust the rectangular component to a suitable welding position, ensuring that each welding surface is welded from a top-down perspective. This top-down welding effectively guarantees welding quality, resulting in a more aesthetically pleasing and uniform weld, reducing welding defects, improving welding efficiency, and significantly shortening welding time. Attached Figure Description

[0012] Figure 1 This is a perspective view of a rectangular component welding fixture according to the present invention; Figure 2 This is a front view of a rectangular component welding fixture according to the present invention; Figure 3 This is a left view of a rectangular component welding fixture according to the present invention; Figure 4 This is a schematic diagram of a rectangular component welding fixture of this utility model applied to a welding positioner.

[0013] The numbers in the attached diagram are: 1. Tooling plate; 101. Base plate; 102. Side plate; 2. Positioning groove; 201. Upper positioning section; 202. Lower positioning section; 3. Limiting boss; 4. Positioning pin; 5. Clamping bolt; 6. Arc-starting plate; 7. Mounting plate; 701. Horizontal part; 702. Vertical part; 8. Connecting hole; 9. Rectangular part body; 10. Positioner. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-4 As shown, this embodiment provides a rectangular component welding fixture, including a fixture plate 1. The fixture plate 1 is a U-shaped plate and includes a base plate 101 and side plates 102 extending upward at right angles at both ends of the base plate 101. The two side plates 102 of the fixture plate 1 are provided with positioning grooves 2 for accommodating the rectangular component body 9. The positioning groove 2 includes an upper positioning section 201 and a lower positioning section 202 that are connected to form a stepped groove. A limiting boss 3 is provided at the bottom of the lower positioning section 202 of the positioning groove 2. A positioning pin hole is provided on the end face of the rectangular component body 9. A positioning pin shaft 4 that cooperates with the positioning pin hole is provided on the base plate 101 of the fixture plate 1. A connection hole 8 for connecting with the worktable of the positioner 10 is also provided on the base plate 101 of the fixture plate 1.

[0015] Traditional tooling lacks a matching design with the positioner 10, making it impossible to flexibly adjust the welding angle and hindering operators from achieving the ideal welding posture, thus affecting welding efficiency and quality. To address this, the rectangular component welding tooling proposed in this invention is fixed to the worktable of the positioner 10 via the pre-set connecting holes 8. The multi-angle rotation function of the positioner 10's worktable allows for the adjustment of the rectangular component body 9 to a suitable welding position. In actual operation, the tooling is first securely installed on the worktable of the positioner 10. After installation, the rectangular component body 9 is positioned. The rectangular component body 9 is placed in the positioning groove 2 of the tooling plate 1, with the limiting boss 3 initially contacting it. Then, the operator inserts the positioning pin 4 into the positioning pin hole of the rectangular component body 9. The limiting boss 3 and the positioning pin 4 cooperate to position the rectangular component body 9. During the welding process, the multi-angle rotation function of the positioner 10 worktable is used to adjust the rectangular part body 9 to a suitable welding position, thereby ensuring that each welding surface of the rectangular part body 9 is welded from a top-down perspective. The top-down welding process effectively ensures the welding quality, makes the weld formation more beautiful and uniform, reduces the generation of welding defects, improves welding efficiency, and significantly shortens the welding time.

[0016] Furthermore, each of the two side plates 102 of the tooling plate 1 has several threaded holes along its length, and clamping bolts 5 are threaded into the threaded holes. The clamping bolts 5 are used to press the rectangular part body 9 into the positioning groove 2 to ensure that the rectangular part body 9 remains in contact with the tooling plate 1 during the welding process, preventing the rectangular part body 9 from loosening or shifting during the welding process, ensuring the smooth progress of the welding process, and improving the welding quality.

[0017] In this embodiment, both ends of the rectangular body 9 extend beyond the tooling plate 1, and arc-starting plates 6 are provided on the upper and lower end faces of the portion of the rectangular body 9 extending beyond the tooling plate 1. The applicant considered that during the welding process, directly striking an arc on the workpiece can easily damage its surface, forming arc-starting defects. The function of the arc-starting plates 6 is to prevent direct arc-starting on the rectangular body 9 during welding, thus protecting the welding quality of the rectangular body 9.

[0018] The tooling plate 1 has a mounting plate 7 on its base plate 101. The mounting plate 7 is L-shaped and includes a horizontal portion 701 parallel to the base plate 101 and a vertical portion 702 parallel to the side plate 102 of the tooling plate 1. A through hole is vertically formed on the end face of the vertical portion 702 of the mounting plate 7, and the positioning pin 4 is disposed in the through hole. Both ends of the positioning pin 4 extend out of the through hole. This design facilitates the installation and removal of the positioning pin 4 by the operator. When installing the rectangular body 9, the operator can easily insert the positioning pin 4 into the positioning pin hole of the rectangular body 9; when the positioning pin 4 needs to be replaced, there is no need for complex disassembly of the tooling plate 1, only the extended portion needs to be used.

[0019] In this embodiment, the limiting boss 3 protrudes above the horizontal portion 701 of the mounting plate 7. This structure prevents the mounting plate 7 from interfering with the rectangular component body 9, ensuring priority contact between the limiting boss 3 and the rectangular component body 9.

[0020] In this embodiment, the width of the upper positioning section 201 of the positioning groove 2 is smaller than the width of the lower positioning section 202 of the positioning groove 2. When the rectangular body 9 is placed into the positioning groove 2, the narrower upper positioning section 201 will form a certain constraint on the upper part of the rectangular body, preventing it from shaking significantly in the horizontal direction; while the wider lower positioning section 202 provides more space for the lower part of the rectangular body, and together with the limiting boss 3, it can further restrict the movement of the rectangular body.

[0021] The working principle of this utility model is as follows: In actual operation, the fixture must first be securely installed onto the worktable of the positioner 10. Specifically, select appropriate bolts, nuts, and washers. Pass the bolts vertically through the connecting holes 8 on the fixture plate 1 and the mounting holes on the worktable of the positioner 10. Then, sequentially install the washers and tighten the nuts. To ensure the stability of the fixture installation, tighten each bolt in a diagonal sequence to ensure even force distribution on the fixture plate 1 and complete the connection with the worktable of the positioner 10.

[0022] After the tooling installation is completed, the next step is to position the rectangular part body 9. The rectangular part body 9 is placed in the positioning groove 2 of the tooling plate 1. Since the positioning groove 2 has a two-section structure, the upper positioning section 201 is narrower to prevent the rectangular part body 9 from shaking too much in the horizontal direction; the lower positioning section 202 is wider to provide support space for the lower part of the rectangular part body 9.

[0023] Among them, the limiting boss 3 is higher than the horizontal part 701 of the mounting plate 7, ensuring that it contacts the rectangular part body 9 first; then, the operator inserts the positioning pin 4 into the positioning pin hole of the rectangular part body 9, and the limiting boss 3 and the positioning pin 4 cooperate to achieve the positioning of the rectangular part body 9.

[0024] After positioning the rectangular part body 9, the rectangular part body 9 is firmly pressed into the positioning groove 2 by tightening the clamping bolts 5. During the tightening process, it should be ensured that the clamping bolts 5 are subjected to uniform force to ensure that the rectangular part body 9 is stably fixed in the positioning groove 2 and to prevent loosening or displacement during the subsequent welding process.

[0025] Before the welding operation begins, the arc-starting plate 6 is placed on the part of the rectangular part body 9 that extends beyond the tooling plate 1 at both ends to guide the arc and avoid welding defects caused by directly starting the arc on the rectangular part body 9.

[0026] In actual welding operations, the rectangular component welding fixture provided by this invention allows for the completion of the welding task with only one clamping operation. During the welding process, the multi-angle rotation function of the positioner 10's worktable is used to adjust the rectangular component body 9 to a suitable welding position, ensuring that each welding surface of the rectangular component body 9 is welded from a top-down perspective. This effectively guarantees welding quality, resulting in a more aesthetically pleasing and uniform weld formation and reducing welding defects. Furthermore, it improves welding efficiency and significantly shortens the welding time. Actual production verification shows that using this welding fixture can reduce the welding time for each rectangular component body 9 by two-thirds, effectively reducing production costs, improving production efficiency, and bringing significant economic benefits to the enterprise.

[0027] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A rectangular component welding fixture, comprising a fixture plate (1), characterized in that, The tooling plate (1) is a U-shaped plate and includes a base plate (101) and side plates (102) extending upward at right angles at both ends of the base plate (101). The two side plates (102) of the tooling plate (1) are provided with positioning grooves (2) for accommodating the rectangular body (9). The positioning groove (2) includes an upper positioning section (201) and a lower positioning section (202) that are connected to form a stepped groove. The bottom of the lower positioning section (202) of the positioning groove (2) is provided with a limiting boss (3). The end face of the rectangular body (9) is provided with a positioning pin hole. The base plate (101) of the tooling plate (1) is provided with a positioning pin shaft (4) that cooperates with the positioning pin hole. The base plate (101) of the tooling plate (1) is also provided with a connecting hole (8) for connecting with the worktable of the positioner (10).

2. The rectangular component welding fixture according to claim 1, characterized in that, The tooling plate (1) has several threaded holes along its length on both side plates (102), and the threaded holes are threaded with clamping bolts (5).

3. The rectangular component welding fixture according to claim 1, characterized in that, The two ends of the rectangular body (9) extend beyond the tooling plate (1), and the upper and lower end faces of the portion of the rectangular body (9) extending beyond the tooling plate (1) are provided with arc-guiding plates (6).

4. The rectangular component welding fixture according to claim 1, characterized in that, The tooling plate (1) has a mounting plate (7) on its base plate (101). The mounting plate (7) is an L-shaped plate and includes a horizontal part (701) parallel to the base plate (101) of the tooling plate (1) and a vertical part (702) parallel to the side plate (102) of the tooling plate (1). The end face of the vertical part (702) of the mounting plate (7) has a through hole. The positioning pin (4) is set in the through hole, and the two ends of the positioning pin (4) extend out of the through hole respectively.

5. The rectangular component welding fixture according to claim 1, characterized in that, The limiting boss (3) is higher than the horizontal part (701) of the mounting plate (7).

6. The rectangular workpiece welding fixture of claim 1, wherein, The width of the upper positioning section (201) of the positioning groove (2) is smaller than the width of the lower positioning section (202) of the positioning groove (2).

7. The rectangular workpiece welding fixture of claim 1, wherein, The tooling plate (1) also has a connecting hole (8) on its base plate (101).

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