A welding tooling for an air suspension thrust bearing

Abstract

The present invention discloses a welding tooling for an air suspension thrust bearing, which includes a backplane bracket for fixing the backplane of the thrust bearing, and a foil limiting plate detachably connected to the backplane bracket and installed above the backplane of the thrust bearing; the foil limiting plate includes a horizontal limiting block, the horizontal limiting block is circular and its diameter is smaller than the backplane of the thrust bearing. After the horizontal limiting block is fixedly installed with the backplane bracket, a foil welding area is formed in the area of the backplane of the thrust bearing that is not covered by the horizontal limiting block. Foil limiting blocks are equidistantly extended outward along the circumference of the horizontal limiting block. The backplane of the thrust bearing is positioned and fixed by the backplane bracket, and then the wave foil and the flat foil are positioned and welded through the foil limiting plate, which improves the accuracy of the foil welding of the air suspension thrust bearing, ensures the thrust effect, and reduces the product scrap rate caused by welding.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary equipment for the production of thrust bearings, and particularly relates to a welding tooling for an air suspension thrust bearing. Background Art

[0002] The bearings of an air suspension blower are divided into an air floating radial bearing and an air floating thrust bearing. The air floating radial bearing is directly installed in the bearing housing, and the air floating thrust bearing needs to weld the wave foil and the flat foil on the same back plate to have the thrust function. A complete set of air suspension thrust bearings consists of a thrust bearing back plate, a thrust bearing wave foil, and a thrust bearing flat foil. During the manufacturing process, it is necessary to first weld the thrust bearing wave foils evenly divided on the back plate with a spot welding device, and then weld the thrust bearing flat foil in the opposite direction to cover the wave foil, and the overlapping area between the flat foil and the wave foil also needs to be evenly divided. When welding manually, frequent angle adjustment cannot well control the gap.

[0003] Therefore, it is necessary to develop a welding tooling to improve the foil welding process of the air suspension thrust bearing and reduce the product rejection rate caused by welding. Summary of the Invention

[0004] Object of the Invention: In order to overcome the problems existing in the prior art, the present invention provides a welding tooling for an air suspension thrust bearing. The thrust bearing back plate is positioned and fixed by a back plate bracket, and then the wave foil and the flat foil are positioned and welded by a foil limiting plate, which improves the accuracy of the foil welding of the air suspension thrust bearing, ensures the thrust effect, and reduces the product rejection rate caused by welding.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] A welding tooling for an air suspension thrust bearing includes a back plate bracket for fixing the thrust bearing back plate, and a foil limiting plate detachably connected to the back plate bracket and installed above the thrust bearing back plate. The foil limiting plate includes a horizontal limiting block, the horizontal limiting block is circular and its diameter is smaller than the thrust bearing back plate. After the horizontal limiting block is fixedly installed with the back plate bracket, the area of the thrust bearing back plate not covered by the horizontal limiting block forms a foil welding area, and foil limiting blocks are equidistantly extended outward along the circumference of the horizontal limiting block.

[0007] The first inventive point of this application is to limit the two sides of the wave foil and the flat foil through the horizontal limiting block to improve the welding accuracy.

[0008] Preferably, one side edge of the foil limiting block is a wave foil limiting edge, and the other side edge is a flat foil limiting edge.

[0009] Preferably, the foil limiting plate further includes a vertical limiting block arranged above the horizontal limiting block, and the vertical limiting block extends above the foil welding area.

[0010] Preferably, the vertical limit block includes a circular fixed block and an annular pressure block whose areas are less than or equal to the horizontal limit block, the inner ring diameter of the annular pressure block is larger than the diameter of the horizontal limit block, and the outer ring diameter is smaller than the diameter of the thrust bearing back plate, the inner ring of the annular pressure block is connected to the fixed block by a connecting block, the area between adjacent connecting blocks forms an inner side moving area of ​​the foil, and the outward area of ​​the outer ring of the annular pressure block forms an outer side moving area of ​​the foil.

[0011] The second inventive point of the present application is to vertically position the foil by means of a vertical limit block, so as to facilitate the vertical connection of the corrugated foil and the flat foil and prevent the foil from being offset during welding.

[0012] Preferably, the connecting block is arranged above the foil limiting block, and its width at each position is smaller than or equal to that of the foil limiting block.

[0013] Preferably, a sliding groove is opened radially inward along the thrust bearing back plate at one end of the foil limit block away from the horizontal limit block, a sliding shaft is slidably connected in the sliding groove, a rotating shaft is coaxially arranged at one end of the sliding shaft away from the horizontal limit block, and a foil outer edge limiting plate that adapts to the outer edge of the foil is rotatably arranged at one end of the rotating shaft away from the horizontal limit block.

[0014] The third invention point of the present application is to position the foil on three sides in the plane direction by cooperating with the horizontal limit block through the outer limit plate of the foil, and the two sides are arc sides, so as to achieve the effect of accurately positioning the foil in the horizontal direction at one time.

[0015] Preferably, the back plate bracket is provided with three positioning holes for positioning the placement angle of the thrust bearing back plate.

[0016] Preferably, a fixing pin is arranged in the middle of the back plate bracket, and a limiting plate mounting hole adapted for the fixing pin is arranged in the middle of the foil limiting plate.

[0017] Preferably, the number of the fixing pin and the limiting plate mounting holes are both 3.

[0018] Preferably, the number of the foil limiting blocks is 6.

[0019] Beneficial effects: Compared with the prior art, the present invention has the following advantages: the thrust bearing back plate is positioned and fixed by the back plate bracket, and the wave foil and the flat foil are positioned and welded by the foil limit plate, which improves the accuracy of foil welding of the air suspension thrust bearing, ensures the thrust effect, and reduces the product scrap rate caused by welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional diagram of the back panel bracket of the present invention;

[0021] Figure 2 This is a three-dimensional view of the back plate of the air suspension thrust bearing of the present invention;

[0022] Figure 3 This is a three-dimensional view of the wave foil of the air suspension thrust bearing of the present invention;

[0023] Figure 4 This is a three-dimensional view of the flat foil of the air suspension thrust bearing of the present invention;

[0024] Figure 5 This is a three-dimensional view of the foil limiting plate of the first embodiment of the present invention;

[0025] Figure 6 This is a three-dimensional view of the foil installation of the first embodiment of the present invention;

[0026] Figure 7 This is a three-dimensional view of the foil limiting plate of the second embodiment of the present invention;

[0027] Figure 8 This is a three-dimensional view of the foil installation of the second embodiment of the present invention;

[0028] Figure 9 This is a three-dimensional view of the foil limiting plate of the third embodiment of the present invention;

[0029] Figure 10 This is a three-dimensional view of the foil installation of the third embodiment of the present invention;

[0030] Wherein: 1. Back plate bracket; 11. Positioning hole; 12. Fixed pin; 2. Foil limiting plate; 21. Horizontal limiting block; 22. Vertical limiting block; 221. Fixed block; 222. Ring-shaped pressing block; 223. Connecting block; 23. Foil limiting block; 231. Wave foil limiting edge; 232. Flat foil limiting edge; 233. Sliding shaft; 234. Rotating shaft; 235. Foil outer edge limiting plate; 3. Back plate; 4. Wave foil; 5. Flat foil. Detailed implementation manners

[0031] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0032] Any feature disclosed in this specification (including any additional claims, abstract, and drawings) can be replaced by other equivalent or features with similar purposes unless specifically stated. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

[0033] Embodiment 1: Basic technical solution

[0034] As Figure 1-6As shown in the figure, a welding tooling for an air suspension thrust bearing includes a backplane bracket 1 for fixing the backplane of the thrust bearing, and a foil limiting plate 2 detachably connected to the backplane bracket 1 and installed above the backplane of the thrust bearing; the foil limiting plate 2 includes a horizontal limiting block 21, the horizontal limiting block 21 is circular and its diameter is smaller than that of the backplane of the thrust bearing. After the horizontal limiting block 21 is fixedly installed with the backplane bracket 1, a foil welding area is formed in the area of the backplane of the thrust bearing that is not covered by the horizontal limiting block 21. The circumferential of the horizontal limiting block 21 extends outward at equal intervals with foil limiting blocks 23.

[0035] The backplane of the thrust bearing is positioned and fixed through the backplane bracket, and then the wave foil and the flat foil are positioned and welded through the foil limiting plate, which improves the accuracy of the foil welding of the air suspension thrust bearing, ensures the thrust effect, and reduces the product rejection rate caused by welding.

[0036] In this embodiment, one side edge of the foil limiting block is a wave foil limiting edge, and the other side edge is a flat foil limiting edge.

[0037] In this embodiment, three positioning holes 11 for positioning the placement angle of the backplane of the thrust bearing are provided on the backplane bracket 1, which are used to place the backplane of the thrust bearing at a fixed angle. In order to cooperate with the positioning holes 11, bearing positioning holes need to be correspondingly provided on the backplane of the thrust bearing.

[0038] In this embodiment, a fixing pin 12 is provided in the middle of the backplane bracket 1, and a limiting plate mounting hole 24 adapted to the fixing pin 12 is provided in the middle of the foil limiting plate 2. With this structure, it is convenient to disassemble and fix the wave foil pressing plate and the flat foil pressing plate with the backplane bracket.

[0039] In this embodiment, the number of the fixing pin 12 and the limiting plate mounting holes is 3 each. Using 3 can stably fix the backplane bracket and the two pressing plates.

[0040] In this embodiment, the number of the foil limiting blocks 23 is 6. Three positioning holes 11 for positioning the placement angle of the backplane of the thrust bearing are provided on the backplane bracket 1.

[0041] In this embodiment, the spot welding holes of the wave foil 4 and the flat foil 5 are radially arranged on the edge of one side thereof, and the flat foil and the wave foil are arranged in opposite directions, which is convenient for each wave foil and flat foil to cooperate with the wave foil limiting edge 231 and the flat foil limiting edge 232.

[0042] Working principle: When welding this set of air suspension thrust bearings, first install the thrust bearing back plate 3 on the back plate bracket 1, use the back plate bracket positioning holes to position the three holes, then install the foil limit plate 2 on the back plate bracket, and use the corrugated foil limiting edge 231 of the horizontal limit block 21 and the arc size of the horizontal limit block 21 to position the corrugated foil and weld it; after the corrugated foil is welded, use the flat foil limiting edge 232 of the horizontal limit block 21 and the arc size of the horizontal limit block 21 to position the flat foil and weld it; it is also possible to position the corrugated foil 4 and the flat foil together and weld them at the same time.

[0043] When welding the corrugated foil and the flat foil, the welding fixture of this structure only positions the flat foil 5 and the corrugated foil 4 on both sides in the plane direction, and can manually move the corrugated foil 4 and the flat foil 5 to any position, thereby improving the convenience of positioning.

[0044] Embodiment 2: A vertical limit block is provided

[0045] like Figure 7 , 8 As shown, on the basis of Example 1, the foil limiting plate 2 further includes a vertical limiting block 22 arranged above the horizontal limiting block 21, and the vertical limiting block 22 extends to above the foil welding area.

[0046] In this embodiment, the vertical limit block 22 includes a circular fixed block 221 and an annular pressure block 222 whose area is less than or equal to the horizontal limit block 21. The inner ring diameter of the annular pressure block is larger than the diameter of the horizontal limit block 21, and the outer ring diameter is smaller than the diameter of the thrust bearing back plate. The inner ring of the annular pressure block is connected to the fixed block 221 through a connecting block 223. The area between adjacent connecting blocks 223 forms an inner side shifting area of ​​the foil, and the outward area of ​​the outer ring of the annular pressure block forms an outer side shifting area of ​​the foil.

[0047] In this embodiment, the connection block 223 is disposed above the foil limiting block 23 , and its width at each position is smaller than or equal to the foil limiting block 23 .

[0048] Working principle: When welding, first install the thrust bearing back plate 3 on the back plate bracket 1, use the back plate bracket positioning holes to position the three holes, then install the foil limit plate 2 on the back plate bracket, use the wave foil limiting edge 231 of the horizontal limit block 21 and the arc size of the horizontal limit block 21 to position the wave foil, use the vertical limit block 22 to vertically press the wave foil 4 and the flat foil 5 to prevent them from shifting, and then weld; it is also possible to first position and weld the wave foil, and then insert the flat foil for welding.

[0049] When welding the corrugated foil and the flat foil, the welding fixture of this structure positions the flat foil 5 and the corrugated foil 4 on both sides in the planar direction, and positions the corrugated foil and the flat foil vertically, and then welds the corrugated foil and the flat foil together; or first positions the corrugated foil on both sides in the planar direction, then welds the corrugated foil, positions the flat foil on both sides in the planar direction and vertically, and then welds the flat foil; with this structure, a shifting area on the inner side of the foil is reserved, and the inner and outer sides of the foil can be shifted and adjusted at the same time. Although compared with the first embodiment, the convenience of horizontal positioning is reduced due to the setting of the annular pressing block, and the position of the annular pressing block is located in the middle of the foil, the front and rear ends of the foil can still be shifted, so its convenience is only slightly reduced, but the vertical positioning and fixation are added, which is convenient for the vertical connection of the corrugated foil and the flat foil, and can prevent the foil from shifting during welding.

[0050] Embodiment 3: A foil outer edge limiting plate is provided

[0051] like Figure 9 , 10 As shown, on the basis of Example 2, a slide groove is radially opened inward along the thrust bearing back plate at one end of the foil limit block away from the horizontal limit block, a sliding shaft 233 is slidably connected in the slide groove, a rotating shaft 234 is coaxially arranged at one end of the sliding shaft 233 away from the horizontal limit block, and a foil outer edge limit plate 235 adapted to the outer edge of the foil is rotatably arranged at one end of the rotating shaft 234 away from the horizontal limit block.

[0052] Working principle: When welding, first install the thrust bearing back plate 3 on the back plate bracket 1, use the back plate bracket positioning holes to position the three holes, then install the foil limit plate 2 on the back plate bracket, use the wave foil limit edge 231 of the horizontal limit block 21 and the arc size of the horizontal limit block 21 to preliminarily position the wave foil, then stretch the foil outer edge limit plate 235 outward and rotate it to the horizontal direction, and after rotating it to the horizontal direction, push it toward the foil to accurately complete the horizontal positioning of the foil, and then use the vertical limit block 22 to vertically press the wave foil 4 and the flat foil 5 to prevent them from shifting, and then weld.

[0053] When welding corrugated foil and flat foil, the welding fixture of this structure is different from the second embodiment which positions the foil on both sides in the planar direction. In addition, it can position the flat foil 5 and the corrugated foil 4 on three sides in the planar direction, and the two sides are arc sides, so as to achieve the effect of accurately positioning the foil in the horizontal direction at one time.

[0054] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solution of the present invention, and to completely describe the technical solution, purpose and effect of the present invention. The purpose is to enable the public to understand the disclosed content of the present invention more thoroughly and comprehensively, and it does not limit the protection scope of the present invention.

[0055] The above embodiments are not an exhaustive list based on the present invention. In addition, there may be multiple other embodiments not listed. Any substitution and improvement made on the basis of not violating the concept of the present invention fall within the protection scope of the present invention.

Claims

1. A welding tool for an air suspension thrust bearing, characterized in that: The invention comprises a back plate bracket (1) for fixing a thrust bearing back plate, and a foil stop plate (2) detachably connected to the back plate bracket (1) and mounted above the thrust bearing back plate; the foil stop plate (2) comprises a horizontal stop block (21), the horizontal stop block (21) is circular and has a diameter smaller than the thrust bearing back plate; after the horizontal stop block (21) is fixedly mounted on the back plate bracket (1), an area of ​​the thrust bearing back plate not covered by the horizontal stop block forms a foil welding area; foil stop blocks (23) are equidistantly extended outward from the circumference of the horizontal stop block (21); one side edge of the foil stop block (23) is a corrugated foil stop edge (231) and the other side edge is a flat foil stop edge (232); the foil stop plate (2) further comprises a vertical stop block (21) arranged above the horizontal stop block (21); The vertical limit block (22) extends to the top of the foil welding area. The vertical limit block (22) comprises a circular fixed block (221) and an annular pressing block (222) whose area is less than or equal to that of the horizontal limit block (21). The inner ring diameter of the annular pressing block is greater than the diameter of the horizontal limit block (21), and the outer ring diameter is less than the diameter of the thrust bearing back plate. The inner ring of the annular pressing block is connected to the fixed block (221) via a connecting block (223). The area between adjacent connecting blocks (223) forms an inner side shifting area of ​​the foil, and the outer area of ​​the outer ring of the annular pressing block forms an outer side shifting area of ​​the foil. The connecting block (223) is arranged above the foil limit block (23), and its width at each position is less than or equal to that of the foil limit block (23).

2. The welding tool for air suspension thrust bearing according to claim 1, characterized in that: The foil limiting block (23) is provided with a sliding groove radially inwardly along the thrust bearing back plate at one end away from the horizontal limiting block, a sliding shaft (233) is slidably connected in the sliding groove, a rotating shaft (234) is coaxially arranged at one end of the sliding shaft (233) away from the horizontal limiting block, and a foil outer edge limiting plate (235) adapted to the outer edge of the foil is rotatably arranged at one end of the rotating shaft (234) away from the horizontal limiting block.

3. The welding tool for air suspension thrust bearing according to claim 1, characterized in that: The back plate bracket (1) is provided with three positioning holes (11) for positioning the placement angle of the thrust bearing back plate.

4. The welding tool for air suspension thrust bearing according to claim 1, characterized in that: A fixing pin (12) is arranged in the middle of the back plate bracket (1), and a limiting plate mounting hole (24) adapted to the fixing pin (12) is arranged in the middle of the foil limiting plate (2).

5. The welding tool for air suspension thrust bearing according to claim 4, characterized in that: The number of the fixing pin (12) and the number of the limiting plate mounting holes are both three.

6. The welding tool for air suspension thrust bearing according to claim 1, characterized in that: The number of the foil limiting blocks (23) is 6.

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