Semi-automatic positive clearance detection

Abstract

The utility model discloses a semi-automatic positive clearance detection device, which comprises a placing plate, one side of the upper end of the placing plate is fixedly connected with a fixing frame, one side of the fixing frame is provided with a first power assembly, the front side of the fixing frame is slidably connected with a lifting block, two sides of the lifting block are fixedly connected with fixing blocks, and the fixing blocks are fixedly connected with a second power assembly. A second power assembly is arranged on one side of the fixing block. By adopting the structure, a bearing is placed on the placing plate, the bearing clearance at the moment is recorded through the first graduated scale and the second graduated scale, and after the bearing clearance is eliminated through the first pressing assembly and the second pressing assembly, the clearance distance after elimination is recorded through the first graduated scale and the second graduated scale; therefore, the clearance elimination distance of the hub bearing can be visually observed, data support is provided for follow-up bearing production and machining, a bearing mold is adjusted, unqualified hub bearings are prevented from flowing to the market, the use cost is low, and the practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing detection, and particularly relates to a semi-automatic positive clearance detection. Background Art

[0002] The wheels on the hub usually require one or more bearings to support and rotate. A bearing is a mechanical component, usually made of metal, used to support the rotation of a shaft. It can reduce friction and wear, and at the same time improve the rotation efficiency of the shaft. On the hub, the bearing is usually installed between the hub and the axle to support the rotation of the wheel. If the axial clearance between the inner ring and the outer ring of the bearing is too large, it will cause a significant settlement of the bearing axis, resulting in excessive vibration and a large amount of noise during use. When the bearing rotates, the accuracy of the bearing is low, and it is easy to wear and fatigue, and the load-bearing capacity will be greatly affected. Therefore, it is necessary to detect the axial clearance before leaving the factory.

[0003] Chinese Patent Publication No.: CN105716562B. By applying pressure to the upper and lower ends of the bearing inner ring through the upper and lower inner ring pressing plates respectively to eliminate the gaps between the inner ring and the rolling balls and the upper and lower step surfaces of the bearing outer ring, then measuring the gap values respectively and finally taking the average value for calculation, the measurement result is accurate, avoiding measurement errors, ensuring stable use of the bearing, low noise and long service life. This device measures fully automatically and automatically distinguishes and processes unqualified products, with a high degree of automation, meeting the production requirements of high-speed bearing detection, improving production and detection efficiency, and reducing labor costs. However, there are some problems in the use of the above-mentioned existing technical solutions. After the bearing clearance is eliminated, it is tested with a measuring pen, but the measurement accuracy requirements for the measuring pen are too high, and expensive sensor chips need to be used, resulting in a large investment cost. It is impossible to most intuitively observe the clearance size, and it is also not convenient to eliminate the clearance of bearings with different sizes within a certain range. Therefore, a semi-automatic positive clearance detection device is specifically proposed. Summary of the Utility Model

[0004] Aiming at the problems mentioned in the background art, the purpose of the utility model is to provide a semi-automatic positive clearance detection to solve the problems that the measurement accuracy requirements for the measuring pen are too high, expensive sensor chips need to be used with a large investment cost, it is impossible to most intuitively observe the clearance size, and it is not convenient to eliminate the clearance of bearings with different sizes within a certain range.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A semi-automatic positive clearance detection device includes a placement plate. One side of the upper end of the placement plate is fixedly connected with a fixing frame. There is a first power assembly on one side of the fixing frame. A lifting block is slidably connected to the front side of the fixing frame. Fixed blocks are fixedly connected to both sides of the lifting block. There is a second power assembly on one side of the fixed block. A first pressing assembly is arranged below the fixed block. A second pressing assembly is arranged below the lifting block. A first scale is fixedly connected to the middle side of the upper end of the placement plate. Second scales are fixedly connected to both sides of the upper end of the placement plate where the first scale is located.

[0007] Further, as a preferred technical solution, the first power assembly includes a first motor. The first motor is fixedly connected to the top of the mounting frame. The output end of the first motor is fixedly connected with a first lead screw. A first sliding groove is formed on one side of the mounting frame. The first lead screw is rotatably connected inside the first sliding groove. One side of the lifting block is slidably connected to the first sliding groove.

[0008] Further, as a preferred technical solution, the second power assembly includes a second motor. The second motor is fixedly connected to one side of the fixed block. The output end of the second motor is fixedly connected with a second lead screw. A second sliding groove is formed on one side of the fixed block. The second lead screw is rotatably connected inside the second sliding groove. One side of the first pressing assembly is slidably connected to the second sliding groove.

[0009] Further, as a preferred technical solution, the first pressing assembly includes a moving frame. One side of the moving frame is slidably connected to the second sliding groove. One side of the moving frame is threadedly connected to the second lead screw. A first air cylinder is installed inside one side of the moving frame. The output end of the first air cylinder is fixedly connected with a first pressing block.

[0010] Further, as a preferred technical solution, the second pressing assembly includes a fixed frame. The fixed frame is fixedly connected to one side of the lower end of the lifting block. Second air cylinders are installed inside both sides of the fixed frame. The output ends of the second air cylinders are fixedly connected with second pressing blocks.

[0011] Further, as a preferred technical solution, third air cylinders are fixedly connected to both the front and rear sides of the upper end of the placement plate. The output ends of the third air cylinders are fixedly connected with positioning blocks. One group of the third air cylinders is fixedly connected to one side of the mounting frame.

[0012] Further, as a preferred technical solution, a rubber pad is fixedly connected to the side of the placement plate.

[0013] In summary, the main beneficial effects of the present utility model are as follows:

[0014] First, the utility model places the bearing on the placement plate, records the bearing clearance at this time by the first scale and the second scale, eliminates the bearing clearance by the first clamping assembly and the second clamping assembly, and then records the clearance distance after elimination by the first scale and the second scale, so that the distance of the hub bearing clearance elimination can be visually observed, providing data support for subsequent bearing production and processing, adjusting the bearing mold, and reducing the flow of unqualified hub bearings to the market, with low use cost and high practicality;

[0015] Second, the utility model uses the first power component to move the lifting block and the fixed block downward, and then starts the first cylinder, the second cylinder, and the third cylinder at the same time. The first clamping block moves to press the outer ring of the bearing, the two positioning blocks move to press the outer ring of the bearing, and the two second clamping blocks move to press against the inner ring of the bearing, thereby eliminating the bearing gap, making it convenient to fix bearings of different sizes to eliminate the bearing gap and meet the existing bearing testing and use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the first clamping assembly of the utility model;

[0018] Figure 3 This utility model Figure 1 Enlarged view of part A in .

[0019] Figure numerals: 1. placement plate, 2. mounting frame, 3. lifting block, 4. fixed block, 5. first power assembly, 51. first motor, 52. first slide groove, 53. first screw rod, 6. second power assembly, 61. second motor, 62. second slide groove, 63. second screw rod, 7. first clamping assembly, 71. moving frame, 72. first cylinder, 73. first clamping block, 8. second clamping assembly, 81. fixed frame, 82. second cylinder, 83. second clamping block, 9. third cylinder, 10. positioning block, 11. first scale, 12. second scale. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] refer to Figures 1 - 3, a semi-automatic positive clearance detection described in this embodiment includes a placement plate 1. One side of the upper end of the placement plate 1 is fixedly connected with a fixed frame 81. A rubber pad is fixedly connected to the side of the placement plate 1. By setting the rubber pad, the bearing can be placed more stably and is not prone to sliding. The first scale 11 and the second scale 12 are flush with the rubber pad. One side of the fixed frame 81 is provided with a first power assembly 5. The first power assembly 5 includes a first motor 51. The first motor 51 is fixedly connected to the top of the mounting frame 2. The output end of the first motor 51 is fixedly connected with a first lead screw 53. A first chute 52 is opened on one side of the mounting frame 2. The first lead screw 53 is rotatably connected inside the first chute 52. One side of the lifting block 3 is slidably connected to the first chute 52. By setting the first power assembly 5, when it is necessary to make the first pressing assembly 7 and the second pressing assembly 8 press the bearing to eliminate the clearance, start the first motor 51 to make the first lead screw 53 rotate in the first chute 52, and the lifting block 3 and the fixed block 4 can be moved downward. The lifting block 3 is slidably connected to the front side of the fixed frame 81. Both sides of the lifting block 3 are fixedly connected with fixed blocks 4. One side of the fixed block 4 is provided with a second power assembly 6. The lower side of the fixed block 4 is provided with a first pressing assembly 7. The lower side of the lifting block 3 is provided with a second pressing assembly 8. The middle side of the upper end of the placement plate 1 is fixedly connected with a first scale 11. The upper end of the placement plate 1 is fixedly connected with second scales 12 on both sides of the first scale 11; Place the bearing on the placement plate 1, record the bearing clearance at this time through the first scale 11 and the second scale 12. After eliminating the bearing clearance through the first pressing assembly 7 and the second pressing assembly 8, record the clearance distance after elimination through the first scale 11 and the second scale 12 again, so as to directly observe the distance of the hub bearing clearance elimination, provide data support for the subsequent bearing production and processing, adjust the bearing mold, reduce the unqualified hub bearings from flowing into the market, with low use cost and high practicability.

[0023] Embodiment 2

[0024] Reference Figure 2 , on the basis of Embodiment 1, in order to achieve the purpose of conveniently adjusting the position of the first pressing assembly 7, this embodiment innovatively designs the second power assembly 6. Specifically, the second power assembly 6 includes a second motor 61. The second motor 61 is fixedly connected to one side of the fixed block 4. The output end of the second motor 61 is fixedly connected with a second lead screw 63. A second chute 62 is opened on one side of the fixed block 4. The second lead screw 63 is rotatably connected inside the second chute 62. One side of the first pressing assembly 7 is slidably connected to the second chute 62; By setting the second power assembly 6, when it is necessary to adjust the position of the first pressing assembly 7, start the second motor 61 to make the second lead screw 63 rotate in the second chute 62, and the first pressing assembly 7 can be moved to adjust the distance between the two first pressing assemblies 7 to facilitate adaptation to the bearing.

[0025] ReferenceFigure 2 , to achieve the purpose of pressing the outer ring of the bearing, the first pressing assembly 7 of this embodiment includes a moving frame 71. One side of the moving frame 71 is slidably connected to the second chute 62, one side of the moving frame 71 is threadedly connected to the second lead screw 63, and a first cylinder 72 is installed inside one side of the moving frame 71. The output end of the first cylinder 72 is fixedly connected to a first pressing block 73. By setting the first pressing assembly 7, after the second motor 61 works, the moving frame 71 slides in the second chute 62, so that the moving frame 71 drives the first cylinder 72 to move, facilitating the first cylinder 72 to drive the first pressing block 73 to move and press the bearing.

[0026] Reference Figure 1 , to achieve the purpose of clamping and fixing the bearing, third cylinders 9 are fixedly connected to both the front and rear sides of the upper end of the placing plate 1 of this embodiment. The output ends of the third cylinders 9 are fixedly connected to positioning blocks 10, and a group of third cylinders 9 are fixedly connected to one side of the mounting frame 2. By setting the third cylinders 9, the third cylinders 9 drive the positioning blocks 10 to move, clamp and fix the bearing, and cooperate with the first pressing assembly 7 to make the outer ring of the bearing approach the inner ring.

[0027] Embodiment 3

[0028] Reference Figure 3 , on the basis of Embodiment 2 of this embodiment, to achieve the purpose of pressing the inner ring of the bearing, the second pressing assembly 8 of this embodiment has an innovative design. Specifically, the second pressing assembly 8 includes a fixed frame 81. The fixed frame 81 is fixedly connected to one side of the lower end of the lifting block 3. Second cylinders 82 are installed inside both sides of the fixed frame 81. The output ends of the second cylinders 82 are fixedly connected to second pressing blocks 83. By setting the second pressing assembly 8, the second cylinders 82 work to move the second pressing blocks 83, and the two second pressing blocks 83 abut against the inner ring of the bearing, so that the inner ring of the bearing approaches the outer ring.

[0029] Principle of use and advantages: Place the bearing on the placing plate 1, record the bearing clearance at this time through the first scale 11 and the second scale 12, start the first motor 51 to rotate the first lead screw 53, so that the lifting block 3 on the surface of the first lead screw 53 and the fixing blocks 4 on both sides of the lifting block 3 move downward. At the same time, start the first cylinder 72, the second cylinder 82, and the third cylinder 9. The first pressing block 73 moves to press the outer ring of the bearing, the two positioning blocks 10 move to press the outer ring of the bearing, and the two second pressing blocks 83 move to abut against the inner ring of the bearing, thereby eliminating the bearing clearance, facilitating the fixing of bearings of different sizes to eliminate the bearing clearance, and then recording the clearance distance after elimination through the first scale 11 and the second scale 12, so that the distance of the hub bearing clearance elimination can be visually observed, providing data support for subsequent bearing production and processing, adjusting the bearing mold, reducing the flow of unqualified hub bearings to the market, with low use cost and high practicability.

[0030] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A semi-automatic positive clearance detection, characterized in that: The invention comprises a placement plate (1), wherein one side of the upper end of the placement plate (1) is fixedly connected to a fixing frame (81), one side of the fixing frame (81) is provided with a first power assembly (5), the front side of the fixing frame (81) is slidably connected to a lifting block (3), both sides of the lifting block (3) are fixedly connected to fixing blocks (4), one side of the fixing block (4) is provided with a second power assembly (6), the lower side of the fixing block (4) is provided with a first clamping assembly (7), the lower side of the lifting block (3) is provided with a second clamping assembly (8), the middle side of the upper end of the placement plate (1) is fixedly connected to a first scale (11), and the upper end of the placement plate (1) is located on both sides of the first scale (11) and is fixedly connected to a second scale (12).

2. A semi-automatic positive clearance detection according to claim 1, characterized in that: The first power assembly (5) comprises a first motor (51), the first motor (51) is fixedly connected to the top end of the mounting frame (2), the output end of the first motor (51) is fixedly connected to a first screw rod (53), one side of the mounting frame (2) is provided with a first slide groove (52), the first screw rod (53) is rotatably connected to the inside of the first slide groove (52), and one side of the lifting block (3) is slidably connected to the first slide groove (52).

3. A semi-automatic positive clearance detection according to claim 1, characterized in that: The second power assembly (6) comprises a second motor (61), the second motor (61) is fixedly connected to one side of the fixed block (4), the output end of the second motor (61) is fixedly connected to a second screw rod (63), one side of the fixed block (4) is provided with a second slide groove (62), the second screw rod (63) is rotatably connected to the inside of the second slide groove (62), and one side of the first clamping assembly (7) is slidably connected to the second slide groove (62).

4. A semi-automatic positive clearance detection according to claim 3, characterized in that: The first clamping assembly (7) comprises a movable frame (71), one side of the movable frame (71) is slidably connected to the second slide groove (62), one side of the movable frame (71) is threadedly connected to the second screw rod (63), a first cylinder (72) is installed inside one side of the movable frame (71), and the output end of the first cylinder (72) is fixedly connected to the first clamping block (73).

5. A semi-automatic positive clearance detection according to claim 1, characterized in that: The second clamping assembly (8) comprises a fixing frame (81), the fixing frame (81) being fixedly connected to one side of the lower end of the lifting block (3), second cylinders (82) being installed inside both sides of the fixing frame (81), and the output end of the second cylinder (82) being fixedly connected to a second clamping block (83).

6. A semi-automatic positive clearance detection according to claim 1, characterized in that: The front and rear sides of the upper end of the placement plate (1) are fixedly connected to a third cylinder (9), the output end of the third cylinder (9) is fixedly connected to a positioning block (10), and a group of the third cylinders (9) is fixedly connected to one side of the mounting frame (2).

7. A semi-automatic positive clearance detection according to claim 1, characterized in that: A rubber pad is fixedly connected to the side of the placement plate (1).

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