Automatic spot welding equipment special for guide rail
Through the design of the special automatic welding equipment of the rail, the sliding rail and positioning bracket structure are used to achieve primary positioning and welding to the secondary welding station after welding, solving the problem of low positioning accuracy when welding guide components, and improved the size and accuracy of the finished product. And welding efficiency.
Patent Information
- Application Number
- CN202420176711.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-24
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-01-24
AI Technical Summary
When welding guide rail components, two welding processes are used to separate the method, which can easily affect the dimensional accuracy of the finished product due to low positioning accuracy.
Design a dedicated automatic welding equipment for rails, using sliding rails and positioning bracket structures to complete welding through one positioning, and use the piston tank and sliding plate to automatically transfer to the second welding station to reduce the positioning accuracy error.
After the positioning and welding, the automatic transfer to the secondary welding station is achieved, reducing the positioning accuracy error, shortening the welding process process, and improving the size accuracy of the finished product.
Smart Images
Figure CN222403898U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding equipment, in particular to a special automatic spot welding equipment for guide rails. Background Art
[0002] The guide rail welding assembly consists of three parts, including an arc-shaped guide rail body, an upper bracket and a lower bracket welded to both ends of the guide rail body.
[0003] For such components that require shape accuracy and dimensional accuracy, especially under the premise of a small overall size, if two separate welding processes are used, the two links of bracket positioning and secondary repeated positioning are easily affected by the processing accuracy, thereby affecting the dimensional accuracy of the finished welded parts. Utility Model Content
[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a rationally structured special automatic spot welding equipment for guide rails, which only needs one positioning and automatically transfers to the secondary welding station after completing one welding, thereby reducing the positioning accuracy error and shortening the welding process.
[0005] The technical solution adopted by the utility model is as follows:
[0006] A guide rail dedicated automatic spot welding device comprises a frame, a welding station is arranged on the frame, a welding gun is arranged above the welding station, and a welding tool is arranged at the welding station, and the welding tool comprises:
[0007] The slide rail is located on the operating table of the rack.
[0008] The positioning bracket is slidably connected to the slide rail, and the positioning bracket includes a first positioning component and a second positioning component respectively used for limiting the two ends of the part.
[0009] The piston cylinder is fixedly mounted on the operating table of the positioning frame, and the piston end of the piston cylinder is fixedly connected to the positioning bracket.
[0010] As a further improvement of the above technical solution:
[0011] The curvature of the slide rail is the same as the inclination direction of the parts to be welded.
[0012] The positioning bracket is provided with a lower electrode, and the welding gun is provided with an upper electrode. The lower electrode and the upper electrode are located correspondingly on both sides of the parts to be welded in the vertical direction.
[0013] The positioning bracket comprises a sliding plate, and the sliding plate falls on the sliding rail; the first positioning component and the second positioning component are located on the sliding plate and move synchronously with the sliding plate.
[0014] The piston end of the piston cylinder is fixedly connected to the side wall of the sliding plate.
[0015] A positioning plug is formed on one side of the first positioning component facing the part to be welded, and the positioning plug is embedded in the hollow area of the part to be welded.
[0016] The second positioning assembly extends upright upward from the sliding plate, and the top of the second positioning assembly includes:
[0017] Inner wall positioning blocks are used to fit the hollow area of the parts to be welded.
[0018] The outer wall positioning calipers are located on both sides of the ends of the parts to be welded and clamped on the side walls.
[0019] The positioning clips are clamped on both sides of the sheet structure at the end of the part to be welded.
[0020] The stopper is embedded in the top of the upright part of the second positioning assembly and contacts the tip of the sheet at the end of the part to be welded.
[0021] The second positioning assembly provides at least four degrees of freedom for the parts to be welded.
[0022] The sliding plate is also provided with a lower bracket positioning piece, which is located on the side of the connection line between the first positioning component and the second positioning component and is used to support the lower bracket plate of the part to be welded.
[0023] The piston cylinder is located on the side of the slide rail, and the piston cylinder is arranged obliquely and parallel to the slide rail.
[0024] The welding stations on the frame are symmetrically arranged, corresponding to the parts to be welded on the left and right sides respectively.
[0025] The beneficial effects of the utility model are as follows:
[0026] The utility model has a compact and reasonable structure and is easy to operate. By using non-standard fixtures, the problems of the original process flow are solved, the clamping and positioning are completed at one time, and all welding processes are completed on the fixture. At the same time, the tooling can be quickly switched to weld similar products, reducing the area occupied by production.
[0027] The utility model is particularly suitable for welding conventional rails or rails with upper and lower brackets. The utility model provides a lower bracket positioning piece specially used for supporting the bracket piece, which is convenient for welding the bracket piece under the action of the upper and lower electrodes; when the overall tooling slides on the slide rail to the next welding position, welding can continue according to actual needs.
[0028] The first positioning component and the second positioning component of the utility model are relatively simple at one end and have a special-shaped stamping part at the other end according to the special structure of the track. Different positioning structures are adopted respectively, which ensures accurate positioning while preventing the fine positions of the parts to be welded from being deformed and damaged due to rigid impact during movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0030] Figure 2 This is a schematic diagram of tooling on one of the welding stations of the utility model.
[0031] Figure 3 for Figure 2 Schematic diagram of the structure of the tooling from another perspective.
[0032] Figure 4 for Figure 2 Schematic diagram of the state where the tooling moves to the second welding position after completing one welding operation.
[0033] Figure 5 It is a schematic diagram of the structure of the first positioning component and the second positioning component in the utility model.
[0034] Figure 6 for Figure 5 The enlarged view of part A in the middle is used to illustrate the structure of the second positioning component.
[0035] Figure 7 for Figure 6 Schematic diagram of the second positioning component structure, in which the parts to be welded are hidden.
[0036] Wherein: 1. frame; 2. slide rail; 3. positioning bracket; 4. first positioning assembly; 5. second positioning assembly; 6. piston cylinder; 7. upper electrode; 8. lower electrode; 9. lower bracket positioning piece;
[0037] 301, sliding plate;
[0038] 401, positioning plug;
[0039] 501, inner wall positioning block; 502, outer wall positioning caliper; 503, positioning clip; 504, conflict limit block. DETAILED DESCRIPTION
[0040] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.
[0041] like Figure 1-Figure 7 As shown, the guide rail dedicated automatic spot welding equipment of this embodiment includes a frame 1, a welding station is arranged on the frame 1, a welding gun is arranged above the welding station, and a welding tool is arranged at the welding station, and the welding tool includes:
[0042] Slide rail 2, located on the operating table of rack 1,
[0043] The positioning bracket 3 is slidably connected to the slide rail 2. The positioning bracket 3 includes a first positioning component 4 and a second positioning component 5 respectively used for limiting the two ends of the part.
[0044] The piston cylinder 6 is fixedly mounted on the operating table of the positioning frame 1 , and the piston end of the piston cylinder 6 is fixedly connected to the positioning bracket 3 .
[0045] The curvature of the slide rail 2 is the same as the inclination direction of the parts to be welded.
[0046] A lower electrode 8 is disposed on the positioning bracket 3, and an upper electrode 7 is disposed on the welding gun. The lower electrode 8 and the upper electrode 7 are located on both sides of the parts to be welded in the vertical direction.
[0047] The positioning bracket 3 includes a sliding plate 301 , and the sliding plate 301 falls on the slide rail 2 ; the first positioning component 4 and the second positioning component 5 are located on the sliding plate 301 and move synchronously with the sliding plate 301 .
[0048] The piston end of the piston cylinder 6 is fixedly connected to the side wall of the sliding plate 301 .
[0049] A positioning plug 401 is formed on the side of the first positioning component 4 facing the part to be welded, and the positioning plug 401 is embedded in the hollow area of the part to be welded.
[0050] The second positioning assembly 5 extends vertically upward from the sliding plate 301, and its top includes:
[0051] The inner wall positioning block 501 is used to fit the hollow area of the part to be welded.
[0052] The outer wall positioning clamps 502 are located on both sides of the ends of the parts to be welded and clamped at the side walls on both sides.
[0053] The positioning clip 503 is clamped on both sides of the sheet structure at the end of the part to be welded.
[0054] The abutment stopper 504 is embedded in the top of the upright part of the second positioning assembly 5 and abuts against the tip of the sheet at the end of the part to be welded.
[0055] The second positioning assembly 5 provides at least four degrees of freedom for the parts to be welded.
[0056] A lower bracket positioning member 9 is also provided on the sliding plate 301. The lower bracket positioning member 9 is located on the side of the connecting line of the first positioning component 4 and the second positioning component 5, and is used to support the lower bracket plate of the part to be welded.
[0057] The piston cylinder 6 is located on the side of the slide rail 2 , and the piston cylinder 6 is tilted and parallel to the slide rail 2 .
[0058] The welding stations on the frame 1 are symmetrically arranged, corresponding to the parts to be welded on the left and right sides respectively.
[0059] The specific structure and working principle of the utility model are as follows:
[0060] like Figure 1As shown, it is a schematic diagram of the whole machine of the utility model. At least two groups of mutually symmetrical welding tools are arranged on the operating table of the frame 1. In this embodiment, two groups of welding tools are taken as an example for description.
[0061] Figure 1 In the figure, a welding gun installed on the top of the frame 1 is also shown. The bottom end of the welding gun is connected to an upper electrode 7, and a lower electrode 8 is connected to the welding tool. When the upper electrode 7 and the lower electrode 8 are energized, they are clamped on both sides of the parts to be welded to perform energized welding on the parts to be welded.
[0062] refer to Figure 2 and Figure 3 , is a schematic diagram of a set of welding tools in the utility model, which shows the schematic diagram of the position of the first welding. In the figure, the arc-shaped part is the part to be welded, and the part to be welded in this embodiment is a track. The track is a steel section with an "n"-shaped cross section. One end of the track is a flat end face, and the other end has a special-shaped connector, which is like Figure 6 The first positioning assembly 4 and the second positioning assembly 5 are used to limit the positions at both ends of the track.
[0063] The first positioning assembly 4 and the second positioning assembly 5 both fall on the sliding plate 301, and the sliding plate 301 falls on two inclined tracks. The piston cylinder 6 on the side of the track and parallel to the track pushes the sliding plate 301 to slide back and forth on the track. Figure 3 and Figure 4 As shown, a lower bracket positioning member 9 is also provided on the sliding plate 301. The function of the lower bracket positioning member 9 is to support and limit the lower bracket piece perpendicular to the track so that the lower bracket piece can be welded on the track. Therefore, in theory, the lower bracket positioning member 9 only needs to have a clamping function. As a replaceable implementation, a clamp such as a quick clamp can be used as the lower bracket positioning member 9. When the sliding plate 301 moves, the lower bracket positioning member 9, the first positioning assembly 4, and the second positioning assembly 5 all move synchronously. After completing the first welding, they slide along the slide rail 2 to the next welding position for the second welding.
[0064] like Figure 5-Figure 7 As shown, the first positioning assembly 4 is perpendicular to the sliding plate 301, and a positioning plug 401 is provided on the top of the first positioning assembly 4. The size of the positioning plug 401 is just adapted to the internal space of the track, and is used to be plugged into the plane end of the track to position one end of the track.
[0065] like Figure 6 and Figure 7As shown, the second positioning component 5 is limited by the internal support of the track and the clamping limit on both sides of the track end. At the top of the second positioning component 5, there is an inner wall positioning block 501, which extends into the track from below to support the track end and prevent the track from shaking; outer wall positioning clamps 502 are also provided on both sides of the track to clamp on both sides of the widest part of the track end; at the narrower sheet at the end of the track, a positioning clamp 503 with a smaller size and higher precision is used to clamp the sheet at the middle position of the track end, and at the same time, refer to Figure 7 The top of the sheet at the end of the track is a rounded structure, and the top of the second positioning component 5 is provided with a stopper 504 for contacting the end of the sheet to prevent the track from axial movement. Figure 6 In the center position, the front, back, left and right sides of the track are all limited. When the upper electrode 7 is pressed down and cooperates with the lower electrode 8, the freedom in the up and down directions is also limited, ensuring that the position accuracy of the track during welding is very high.
[0066] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.
Claims
1. A guide rail dedicated automatic spot welding device, comprising a frame (1), characterized in that: A welding station is arranged on the frame (1), a welding gun is arranged above the welding station, and a welding tool is arranged at the welding station, wherein the welding tool comprises: The slide rail (2) is located on the operating table of the frame (1). The positioning bracket (3) is slidably connected to the slide rail (2), and the positioning bracket (3) comprises a first positioning component (4) and a second positioning component (5) respectively used for limiting the two ends of the part. The piston cylinder (6) is fixedly mounted on the operating table of the positioning frame (1), and the piston end of the piston cylinder (6) is fixedly connected to the positioning bracket (3).
2. The guide rail dedicated automatic spot welding equipment as claimed in claim 1, characterized in that: The curvature of the slide rail (2) is the same as the inclination direction of the parts to be welded.
3. The guide rail dedicated automatic spot welding equipment as claimed in claim 1, characterized in that: A lower electrode (8) is provided on the positioning bracket (3), and an upper electrode (7) is provided on the welding gun. The lower electrode (8) and the upper electrode (7) are located correspondingly on both sides of the parts to be welded in the vertical direction.
4. The guide rail dedicated automatic spot welding equipment as claimed in claim 1, characterized in that: The positioning bracket (3) comprises a sliding plate (301), and the sliding plate (301) falls on the slide rail (2); the first positioning component (4) and the second positioning component (5) are located on the sliding plate (301) and move synchronously with the sliding plate (301).
5. The guide rail dedicated automatic spot welding equipment as claimed in claim 4, characterized in that: The piston end of the piston cylinder (6) is fixedly connected to the side wall of the sliding plate (301).
6. The guide rail dedicated automatic spot welding equipment as claimed in claim 4, characterized in that: A positioning plug (401) is formed on the side of the first positioning component (4) facing the part to be welded, and the positioning plug (401) is embedded in the hollow area of the part to be welded.
7. The guide rail dedicated automatic spot welding equipment as claimed in claim 4, characterized in that: The second positioning assembly (5) extends vertically upward from the sliding plate (301), and its top portion comprises: The inner wall positioning block (501) is used to fit the hollow area of the part to be welded. The outer wall positioning clamps (502) are located at both sides of the ends of the parts to be welded and clamped at the side walls on both sides. The positioning clip (503) is clamped on both sides of the sheet structure at the end of the part to be welded. The abutment stopper (504) is embedded in the top of the upright part of the second positioning assembly (5) and abuts against the tip of the sheet at the end of the part to be welded. The second positioning assembly (5) provides at least four degrees of freedom for the parts to be welded.
8. The guide rail dedicated automatic spot welding equipment as claimed in claim 4, characterized in that: The sliding plate (301) is also provided with a lower bracket positioning member (9), which is located on the side of the connection line between the first positioning component (4) and the second positioning component (5) and is used to support the lower bracket plate of the part to be welded.
9. The guide rail dedicated automatic spot welding equipment as claimed in claim 5, characterized in that: The piston cylinder (6) is located on the side of the slide rail (2), and the piston cylinder (6) is arranged obliquely and parallel to the slide rail (2).
10. The guide rail dedicated automatic spot welding equipment according to claim 1, characterized in that: The welding stations on the frame (1) are symmetrically arranged, corresponding to the parts to be welded on the left and right sides respectively.