Magnetic pressing and positioning mechanism and rare earth steel sheet welding device
By using a magnetic clamping and positioning mechanism and a welding robot, the problem of unstable positioning of rare earth steel sheets during the welding process was solved, achieving efficient and stable welding results and improving the welding quality and efficiency of rare earth steel sheets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOGANG NORTHWEST VENTURE CONSTR CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-17
AI Technical Summary
Rare earth steel sheets are prone to deformation and misalignment during welding. Existing mechanical clamps and vacuum adsorption methods cannot guarantee positioning accuracy and stability, which affects welding quality.
A magnetic clamping and positioning mechanism is adopted, which uses electromagnets to attract the bottom and top of the rare earth steel sheet. Combined with a hydraulic push rod and slider structure, it can achieve precise positioning and fixation of the rare earth steel sheet, and cooperate with the welding robot for efficient welding.
It improves the positioning stability and welding efficiency of rare earth steel sheets, reduces positional deviation, simplifies operation steps, optimizes user experience, and ensures high-precision welding quality.
Smart Images
Figure CN224128984U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of welding equipment technology, specifically, it relates to a magnetic clamping and positioning mechanism and a rare earth steel thin plate welding device. Background Technology
[0002] Rare earth steel, as a high-performance alloy steel, is widely used in aerospace, automotive manufacturing, and high-end equipment due to its unique physical and chemical properties. Welding is one of the key processes in the processing of rare earth steel sheets. However, due to the thinness and special material properties of rare earth steel sheets, deformation and misalignment are prone to occur during welding, seriously affecting weld quality and product performance.
[0003] Some welding devices use mechanical clamps or vacuum adsorption to clamp and position rare earth steel sheets. Mechanical clamps can easily scratch the surface of the sheet during operation, and the uniformity of clamping force is difficult to guarantee, potentially leading to excessive localized stress and deformation. While vacuum adsorption avoids surface scratches, its adsorption effect is poor for rare earth steel sheets with uneven surfaces or micropores, and the positioning accuracy cannot meet the requirements of high-precision welding. Therefore, developing a clamping and positioning mechanism and welding device that can effectively solve the above problems is of significant practical importance.
[0004] In view of this, this utility model is proposed. Utility Model Content
[0005] To solve the aforementioned technical problem of poor positioning effect of rare earth steel thin plates, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] A magnetic clamping and positioning mechanism, comprising:
[0007] The base plate is fixed and placed on the table.
[0008] The positioning structure includes a first positioning part and a second positioning part. The first positioning part includes two sets of first fixed frame plates fixedly installed on the top of a fixed base plate. The first fixed frame plates have a first sliding groove inside, and a first slider is slidably installed inside the first sliding groove. A first limiting plate is fixedly installed on one outer wall of the first slider. An opening is opened at the top of the fixed base plate. The second positioning part includes a first support plate fixedly installed on the top of the fixed base plate. A hydraulic cylinder is fixedly installed on the top of the first support plate. A fourth fixed frame plate is fixedly installed at the bottom of the first support plate. A first fixed sleeve is fixedly installed at the bottom of the fourth fixed frame plate. A hydraulic push rod is provided inside the first fixed sleeve. The output end of the hydraulic cylinder is fixedly connected to the top of the hydraulic push rod. A first fixed plate is fixedly installed at the bottom of the hydraulic push rod. A second electromagnet is fixedly installed at the bottom of the first fixed plate.
[0009] In a preferred embodiment of the present invention, the first positioning part further includes a second fixing frame plate fixedly installed on the top of the fixing base plate, a third fixing frame plate fixedly installed inside the second fixing frame plate, sixteen sets of first electromagnets fixedly installed inside the third fixing frame plate, and a second electrical control box fixedly installed on one outer wall of the fixing base plate, the second electrical control box being electrically connected to the first electromagnets.
[0010] In a preferred embodiment of the present invention, the first positioning part further includes a first electrical control box fixedly installed on one side of the outer wall of the first fixed frame plate, a first electric push rod is provided inside the first slide groove, one end of the telescopic inner rod of the first electric push rod is fixedly connected to one side of the outer wall of the first slider, the first electrical control box is electrically connected to the first electric push rod, an opening is provided inside the first slider, a first guide plate is fixedly installed inside the first slide groove, and the first guide plate is provided inside the opening of the first slider.
[0011] In a preferred embodiment of the present invention, the second positioning part further includes a power supply box fixedly installed on the top of the fixed base plate, a third electrical control box fixedly installed on the outer wall of the first fixed plate, a first wire fixedly installed on one side of the outer wall of the third electrical control box, and one end of the first wire fixedly installed inside the power supply box.
[0012] In a preferred embodiment of the present invention, a welding groove is provided on the top of the fixed base plate, a first protective plate is fixedly installed on the top of the fixed base plate, and a second protective plate is fixedly installed on one outer wall of the first protective plate.
[0013] In a preferred embodiment of this utility model, a rotating base is fixedly installed on the top of the fixed base plate, a fourth electrical control box is fixedly installed on one outer wall of the fixed base plate, a second wire is fixedly installed between the rotating base and the fourth electrical control box, and a material guide groove is opened inside the fixed base plate, and a rare earth steel sheet body is placed inside the material guide groove.
[0014] A rare earth steel sheet welding device includes a magnetic clamping and positioning mechanism and a welding robot as described in any one of the above, wherein the welding robot is disposed inside a rotating base.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] 1. To achieve the effect of fixing the rare earth steel sheet, reduce the positional displacement of the rare earth steel sheet, improve the stability of the device, facilitate subsequent welding processing, and improve the stability of the device.
[0017] 2. To achieve the purpose of power supply control for the device, improve the device's limiting efficiency for rare earth steel sheets, simplify the device's operation steps, and improve the ease of use of the device.
[0018] 3. To achieve rapid welding of rare earth steel sheets, improve the flexibility of equipment use, increase the welding efficiency of rare earth steel sheets, and optimize the user experience of the equipment.
[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0020] In the attached diagram:
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the welding groove structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the first fixed frame plate structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the first support plate structure of this utility model;
[0025] Figure 5 This is a split diagram of the second and third fixing frame plates of this utility model;
[0026] Figure 6 This is a schematic diagram of the rare earth steel sheet body structure of this utility model.
[0027] In the diagram: 10. Fixed base plate; 11. First fixed frame plate; 12. First slide groove; 13. First slider; 14. First limiting plate; 15. First guide plate; 16. First electrical control box; 17. First electric push rod; 18. Second fixed frame plate; 19. Third fixed frame plate; 20. First electromagnet; 21. Second electrical control box; 22. Welding groove; 23. First protective plate; 24. Second protective plate; 25. Material guide groove; 26. Rare earth steel sheet body; 27. First support plate; 28. Hydraulic cylinder; 29. Fourth fixed frame plate; 30. First fixed sleeve; 31. Hydraulic push rod; 32. First fixed plate; 33. Second electromagnet; 34. Third electrical control box; 35. First wire; 36. Power supply box; 37. Rotating base; 38. Fourth electrical control box; 39. Second wire; 40. Welding robot. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0029] Example 1: A magnetic clamping and positioning mechanism and a rare earth steel sheet welding device, specifically as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the system includes a fixed base plate 10, which is placed on a table surface; a positioning structure, comprising a first positioning part and a second positioning part. The first positioning part includes two sets of first fixed frame plates 11 fixedly installed on the top of the fixed base plate 10. A first sliding groove 12 is formed inside the first fixed frame plate 11, and a first slider 13 is slidably installed inside the first sliding groove 12. A first limiting plate 14 is fixedly installed on one outer wall of the first slider 13. An opening is formed at the top of the fixed base plate 10. The second positioning part includes two sets of first fixed frame plates 11 fixedly installed on the top of the fixed base plate 10. A first support plate 27 is located at the top of the base plate 10. A hydraulic cylinder 28 is fixedly installed on the top of the first support plate 27. A fourth fixed frame plate 29 is fixedly installed at the bottom of the first support plate 27. A first fixed sleeve 30 is fixedly installed at the bottom of the fourth fixed frame plate 29. A hydraulic push rod 31 is installed inside the first fixed sleeve 30. The output end of the hydraulic cylinder 28 is fixedly connected to the top of the hydraulic push rod 31. A first fixed plate 32 is fixedly installed at the bottom of the hydraulic push rod 31. A second electromagnet 33 is fixedly installed at the bottom of the first fixed plate 32. The rare earth steel sheet is limited and fixed by the positioning structure. The first limiting plate 14 is fixed by the first slider 13. The first limiting plate 14 limits both sides of the rare earth steel sheet. The hydraulic cylinder 28 is activated, which drives the hydraulic push rod 31 to descend, which drives the first fixed plate 32 to descend. The top of the rare earth steel sheet is limited by the second electromagnet 33.
[0030] Specifically, such as Figure 1 , Figure 2 and Figure 5 As shown, the first positioning part also includes a second fixed frame plate 18 fixedly installed on the top of the fixed base plate 10. A third fixed frame plate 19 is fixedly installed inside the second fixed frame plate 18. Sixteen sets of first electromagnets 20 are fixedly installed inside the third fixed frame plate 19. A second electrical control box 21 is fixedly installed on one outer wall of the fixed base plate 10. The second electrical control box 21 is electrically connected to the first electromagnets 20. By limiting the position through the second fixed frame plate 18 and the third fixed frame plate 19, the second electrical control box 21 is activated to energize the first electromagnets 20, so that the bottom of the rare earth steel sheet is in close contact with the top of the first electromagnets 20.
[0031] Specifically, such as Figure 1 , Figure 2 and Figure 3As shown, the first positioning part also includes a first electrical control box 16 fixedly installed on one side of the outer wall of the first fixed frame plate 11. A first electric push rod 17 is provided inside the first slide groove 12. One end of the telescopic inner rod of the first electric push rod 17 is fixedly connected to one side of the outer wall of the first slider 13. The first electrical control box 16 is electrically connected to the first electric push rod 17. An opening is provided inside the first slider 13. A first guide plate 15 is fixedly installed inside the first slide groove 12. The first guide plate 15 is located inside the opening of the first slider 13. Activating the first electrical control box 16 drives the first electric push rod 17 to move, pushing the first slider 13 to move inside the first slide groove 12, thus adjusting the position of the first slider 13.
[0032] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, the second positioning part also includes a power supply box 36 fixedly installed on the top of the fixed base plate 10. A third electrical control box 34 is fixedly installed on the outer wall of the first fixed plate 32. A first wire 35 is fixedly installed on one side of the outer wall of the third electrical control box 34. One end of the first wire 35 is fixedly installed inside the power supply box 36. The second electromagnet 33 is energized through the power supply box 36 and the first wire 35, so that the second electromagnet 33 is in close contact with the top of the rare earth steel sheet.
[0033] Based on the above, the structure consisting of a fixed base plate 10, a first fixed frame plate 11, a first sliding groove 12, a first slider 13, a first limiting plate 14, a first guide plate 15, a first electrical control box 16, a first electric push rod 17, a second fixed frame plate 18, a third fixed frame plate 19, a first electromagnet 20, a second electrical control box 21, a first support plate 27, a hydraulic cylinder 28, a fourth fixed frame plate 29, a first fixed sleeve 30, a hydraulic push rod 31, a first fixed plate 32, a second electromagnet 33, a third electrical control box 34, a first wire 35, and a power supply box 36 achieves the desired fixation of the rare earth steel sheet, reduces the positional displacement of the rare earth steel sheet, improves the stability of the device, facilitates subsequent welding processing, and enhances the overall stability of the device.
[0034] Example 2: Based on Example 1, specifically as follows... Figure 1 , Figure 2 and Figure 5 As shown, a welding groove 22 is provided on the top of the fixed base plate 10, a first protective plate 23 is fixedly installed on the top of the fixed base plate 10, and a second protective plate 24 is fixedly installed on one outer wall of the first protective plate 23. The welding machine area is protected by the first protective plate 23 and the second protective plate 24.
[0035] Specifically, such as Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, a rotating base 37 is fixedly installed on the top of the fixed base plate 10. A fourth electrical control box 38 is fixedly installed on one outer wall of the fixed base plate 10. A second wire 39 is fixedly installed between the rotating base 37 and the fourth electrical control box 38. A material guide groove 25 is provided inside the fixed base plate 10, and a rare earth steel sheet body 26 is placed inside the material guide groove 25. The rare earth steel sheet body 26 is placed through the material guide groove 25, and the rotating base 37 is powered and controlled through the fourth electrical control box 38 and the second wire 39.
[0036] Based on the above, the structure of the fixed base plate 10, welding groove 22, first protective plate 23, second protective plate 24, guide groove 25, rare earth steel sheet body 26, rotating base 37, fourth electrical control box 38, and second wire 39 achieves the purpose of power supply control for the device, improves the device's limiting efficiency for the rare earth steel sheet, simplifies the device's operation steps, and enhances the device's ease of use.
[0037] Example 3: Based on Examples 1 and 2, specifically as follows... Figure 1 and Figure 2 As shown, a rare earth steel sheet welding device includes a magnetic clamping and positioning mechanism as described in any of the above-mentioned embodiments and a welding robot 40, wherein the welding robot 40 is disposed inside a rotating base 37. The rare earth steel sheet is welded by the welding robot 40.
[0038] The welding robot 40 is articulated: mimicking the human arm, it adopts a multi-axis linkage design, which has high flexibility and can adapt to complex three-dimensional space weld seam trajectories, such as body welding in automobile manufacturing. It uses a PID control algorithm to adjust the joint speed and position in real time to ensure that the distance error between the welding torch and the weld seam is ≤0.1mm. It introduces trajectory interpolation technology to achieve smooth connection of weld seam transition sections. This is an existing technology and will not be described in detail.
[0039] In summary, the structure of the rotating base 37 and the welding robot 40 achieves the goal of rapid welding of rare earth steel sheets, improving the flexibility of the device, increasing the welding efficiency of rare earth steel sheets, and optimizing the user experience.
[0040] Working principle: After placing the rare earth steel sheet in a suitable position on the fixed base plate 10, start the second electrical control box 21 to energize the first electromagnet 20. When energized, the first electromagnet 20 generates magnetic force, attracting the bottom of the rare earth steel sheet, causing the bottom of the rare earth steel sheet to be in close contact with the top of the first electromagnet 20, thus achieving initial positioning and fixation of the rare earth steel sheet at the bottom. According to the width of the rare earth steel sheet, the first electrical control box 16 is activated, driving the first electric push rod 17 to move, pushing the first slider 13 to move along the first guide plate 15 inside the first slide groove 12, adjusting the position of the first slider 13, and then driving the first limiting plate 14 to move, so that the first limiting plate 14 contacts the two sides of the rare earth steel sheet, achieving the limitation of the two sides of the rare earth steel sheet, preventing the rare earth steel sheet from shifting in the horizontal direction. After the bottom and two sides of the rare earth steel sheet are positioned, the hydraulic cylinder 28 is activated. The output end of the hydraulic cylinder 28 drives the hydraulic push rod 31 to descend inside the first fixed sleeve 30, thereby driving the first fixed plate 32 to descend, so that the second electromagnet 33 approaches the top of the rare earth steel sheet. Then, the third control box 34 is activated, drawing power from the power supply box 36 via the first wire 35 to energize the second electromagnet 33. The energized electromagnet 33 generates magnetic force, tightly adhering to the top of the rare earth steel sheet, applying downward pressure to ensure the sheet maintains a stable position during welding. During welding, the first protective plate 23 and the second protective plate 24 surround the welding area, blocking sparks and spatter to prevent harm to the surrounding environment and personnel, thus providing safety protection. The fourth control box 38 and the second wire 39 supply power and control to the rotating base 37. During welding, the fourth control box 38 can control the rotating base 37 to rotate according to welding requirements, thereby rotating the welding robot 40 inside the base 37 to adjust the welding angle and achieve welding at different positions on the rare earth steel sheet. The fixed base plate 10 has a guide groove 25 inside, where the rare earth steel sheet body 26 is placed. The guide trough 25 serves two purposes: firstly, it can temporarily hold the rare earth steel sheet to be welded, facilitating operator access; secondly, it provides initial guidance for the placement of the rare earth steel sheet on the fixed base plate 10, ensuring it is positioned appropriately for subsequent positioning and welding operations. After the rare earth steel sheet is precisely positioned and clamped by the magnetic clamping and positioning mechanism, the welding robot 40 performs welding operations on the rare earth steel sheet using its own welding tools according to the preset welding program and path. Simultaneously, combined with the rotation function of the rotating base 37, the welding robot 40 can flexibly adjust the welding angle to achieve high-quality welding of various parts of the rare earth steel sheet.
[0041] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A magnetic force pinch positioning mechanism, characterized by, include: The base plate (10) is fixed and placed on the table. The positioning structure includes a first positioning part and a second positioning part. The first positioning part includes two sets of first fixed frame plates (11) fixedly installed on the top of the fixed base plate (10). A first sliding groove (12) is opened inside the first fixed frame plate (11). A first slider (13) is slidably installed inside the first sliding groove (12). A first limiting plate (14) is fixedly installed on one side of the outer wall of the first slider (13). An opening is opened on the top of the fixed base plate (10). The second positioning part includes a first support plate (27) fixedly installed on the top of the fixed base plate (10). A hydraulic cylinder (28) is fixedly installed on the top of a support plate (27), a fourth fixed frame plate (29) is fixedly installed on the bottom of the first support plate (27), a first fixed sleeve (30) is fixedly installed on the bottom of the fourth fixed frame plate (29), a hydraulic push rod (31) is provided inside the first fixed sleeve (30), the output end of the hydraulic cylinder (28) is fixedly connected to the top of the hydraulic push rod (31), a first fixed plate (32) is fixedly installed on the bottom of the hydraulic push rod (31), and a second electromagnet (33) is fixedly installed on the bottom of the first fixed plate (32).
2. The magnetic pinch positioning mechanism of claim 1, wherein, The first positioning part also includes a second fixed frame plate (18) fixedly installed on the top of the fixed base plate (10), a third fixed frame plate (19) fixedly installed inside the second fixed frame plate (18), sixteen sets of first electromagnets (20) fixedly installed inside the third fixed frame plate (19), a second electrical control box (21) fixedly installed on one side of the outer wall of the fixed base plate (10), and the second electrical control box (21) is electrically connected to the first electromagnets (20).
3. The magnetic pinch positioning mechanism of claim 1, wherein, The first positioning part also includes a first electrical control box (16) fixedly installed on one side of the outer wall of the first fixed frame plate (11), a first electric push rod (17) is provided inside the first slide groove (12), one end of the telescopic inner rod of the first electric push rod (17) is fixedly connected to one side of the outer wall of the first slider (13), the first electrical control box (16) is electrically connected to the first electric push rod (17), an opening is provided inside the first slider (13), a first guide plate (15) is fixedly installed inside the first slide groove (12), and the first guide plate (15) is located inside the opening of the first slider (13).
4. The magnetic pinch positioning mechanism of claim 1, wherein, The second positioning part also includes a power supply box (36) fixedly installed on the top of the fixed base plate (10), a third electrical control box (34) fixedly installed on the outer wall of the first fixed plate (32), a first wire (35) fixedly installed on one side of the outer wall of the third electrical control box (34), and one end of the first wire (35) fixedly installed inside the power supply box (36).
5. The magnetic pinch positioning mechanism of claim 1, wherein, The top of the fixed base plate (10) is provided with a welding groove (22), and a first protective plate (23) is fixedly installed on the top of the fixed base plate (10). A second protective plate (24) is fixedly installed on one side of the outer wall of the first protective plate (23).
6. The magnetic pinch positioning mechanism of claim 1, wherein, A rotating base (37) is fixedly installed on the top of the fixed base plate (10). A fourth electrical control box (38) is fixedly installed on one side of the outer wall of the fixed base plate (10). A second wire (39) is fixedly installed between the rotating base (37) and the fourth electrical control box (38). A guide groove (25) is opened inside the fixed base plate (10). A rare earth steel sheet body (26) is placed inside the guide groove (25).
7. A rare earth steel sheet welding apparatus characterized by comprising: The invention includes the magnetic clamping and positioning mechanism and the welding robot (40) as described in any one of claims 1-6, wherein the welding robot (40) is disposed inside the rotating base (37).