Riveting quality detection device for dustproof cover of bearing

Abstract

The utility model designs a bearing dust cover riveting quality detection device. Comprising a measuring table, a cover detection tool, a positioning tool and a sliding block, the measuring table comprises a mounting table top, a lifting driving assembly, a moving frame and a displacement detection assembly, and the displacement detection assembly is mounted on the moving frame; a detection wedge block and a positioning shaft are arranged on the bottom face of the cover detection tool, the top of the positioning tool is fixed to the movable frame, and the detection face of the displacement detection assembly faces the top end of the sliding block. When the dustproof cover riveting device works, the hemming height of the dustproof cover when the dustproof cover is riveted too tightly or too loosely serves as a judgment threshold value, the displacement of the sliding block is detected through the displacement detection assembly, the displacement is equivalent to the hemming height of the dustproof cover, and whether the hemming height is within the threshold value range or not is judged according to an actual measurement numerical value, so that the riveting quality of the dustproof cover is judged. The device can detect the riveting quality of the dustproof cover of the bearing, is convenient, rapid, accurate and efficient, can be integrated on an automatic production line, saves labor, and reduces the phenomena of cover loosening and cover falling.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing detection, and relates to a bearing dust cover riveting quality detection device. Background Art

[0002] Dust cap seals are a common seal type for rolling bearings, preventing dust and other foreign matter from entering the bearing interior. Currently, dust cap bearings can be mass-produced on automated production lines. However, the cap inspection station on the production line can only detect the presence of a dust cap, not the quality of the cap riveting. Over-tightening the dust cap can cause the bearing outer ring to become oval, while riveting it too loose can cause abnormalities such as loose caps or cap dropouts. The existing solution involves manually inspecting the bearing outer ring's oval shape and whether the dust cap is loose to determine riveting quality. This measurement is inefficient and difficult to achieve 100% inspection, resulting in frequent loose caps and cap dropouts on the customer's end. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a bearing dust cover riveting quality detection device that is convenient, fast, accurate and efficient and can be integrated into an automated production line.

[0004] The technical solution of the utility model is as follows: a bearing dust cover riveting quality detection device, comprising: a measuring table, a cover inspection tool, a positioning tool and a slider;

[0005] The measuring platform includes: a mounting table, a lifting drive assembly, a mobile frame and a displacement detection assembly, wherein the bottom of the lifting drive assembly is mounted on the mounting table, the mobile frame is mounted on the top of the lifting drive assembly, the lifting drive assembly is used to drive the mobile frame to move up and down, the mounting table is used to mount the bearing to be measured, and the displacement detection assembly is mounted on the mobile frame;

[0006] The bottom surface of the cover inspection tool is provided with a detection wedge and a positioning shaft, the detection wedge is arranged around the positioning shaft, and the positioning shaft is used to locate the inner hole of the bearing to be tested;

[0007] The slider is connected to the top end of the cover inspection tool;

[0008] The positioning tool is provided with a first cavity and a second cavity, the first cavity is located above the second cavity, the slider is provided in the first cavity, and the cover inspection tool is provided in the second cavity;

[0009] The top of the positioning fixture is fixed to the movable frame, and the detection surface of the displacement detection component faces the top of the sliding block.

[0010] Furthermore, a positioning ring is provided on the bottom surface of the positioning fixture, and the positioning ring is used to position the bearing to be tested.

[0011] Furthermore, the inner diameter of the positioning ring is 0.1-0.3 mm larger than the outer diameter of the bearing to be tested.

[0012] Furthermore, the diameter of the positioning shaft is 0.1-0.3 mm smaller than the inner diameter of the bearing to be tested.

[0013] Furthermore, a flange is provided on the top of the positioning tool, and the flange is used to be connected to the movable frame.

[0014] Furthermore, the slider is loosely matched with the first cavity, and the cover inspection fixture is loosely matched with the second cavity.

[0015] Furthermore, a countersunk hole is provided in the positioning shaft, and a bolt connected to the sliding block is provided in the countersunk hole.

[0016] Furthermore, the first cavity is 4-6 mm higher than the slider.

[0017] Furthermore, the second cavity is 2-3 mm higher than the cover inspection tooling.

[0018] Furthermore, the inclination angle of the detection wedge is 30°~40°.

[0019] The beneficial effects of the present invention are as follows: when the present invention is working, the height of the dust cover curling when the dust cover is riveted too tightly or too loosely is used as a judgment threshold, and the displacement of the slider is detected by the displacement detection component. The displacement is equivalent to the height of the dust cover curling, and the riveting quality of the dust cover is judged by judging whether the measured value is within the threshold range.

[0020] The utility model can detect the riveting quality of the bearing dust cover in a convenient, fast, accurate and efficient manner, can be integrated into an automated production line, saves labor, and reduces the phenomenon of loose covers and falling covers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the present utility model.

[0022] Figure 2 It is a structural schematic diagram of the measuring platform of the utility model.

[0023] Figure 3 It is a structural diagram of the bearing to be tested.

[0024] Figure 4 It is a structural diagram of this practical cover inspection tool.

[0025] Figure 5 It is a structural diagram of this practical positioning tool.

[0026] Figure 6 It is a structural schematic diagram of the slider of the utility model. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts should fall within the scope of protection of the present invention.

[0028] In an embodiment of the present invention, Figure 1 This is a structural diagram provided according to the specific structure of a bearing dust cover riveting quality detection device of the utility model, as shown in FIG. Figure 1 As shown, the utility model specifically includes: a measuring platform 1, a cover inspection tool 3, a positioning tool 4 and a slider 5.

[0029] like Figure 2 As shown, the measuring platform 1 includes: a mounting table 11, a lifting drive component 12, a mobile frame 13 and a displacement detection component 14. The bottom of the lifting drive component 12 is mounted on the mounting table 11, and the mobile frame 13 is mounted on the top of the lifting drive component 12. The lifting drive component 12 is used to drive the mobile frame 13 to move up and down. The mounting table 11 is used to install the bearing to be measured, and the displacement detection component 14 is mounted on the mobile frame 13.

[0030] like Figure 3 As shown, a detection wedge 31 and a positioning shaft 32 are provided on the bottom surface of the cover inspection tool 3. The detection wedge 31 is arranged around the positioning shaft 32, and the positioning shaft 32 is used to locate the inner hole of the bearing to be tested.

[0031] like Figure 6 As shown, the slider 5 is connected to the top of the cover inspection tool 3 , and a limiting boss 51 is provided above the slider 5 , which is used to limit the downward movement of the slider 5 .

[0032] like Figure 5 As shown, a first cavity 41 and a second cavity 42 are provided inside the positioning tool 4 , the first cavity 41 is located above the second cavity 42 , the slider 5 is provided in the first cavity 41 , and the cover inspection tool 3 is provided in the second cavity 42 .

[0033] The top of the positioning fixture 4 is fixed to the moving frame 13 , and the detection surface of the displacement detection component 14 faces the top of the slider 5 .

[0034] The lifting drive assembly 12 can be a cylinder to realize the lifting of the movable frame 13, or other lifting devices can be used. The displacement detection assembly can be realized by a displacement sensor, specifically a photoelectric displacement sensor or a contact position sensor. Figure 2 The figure shows a contact displacement sensor, in which 141 is a stylus of the sensor. The stylus 141 is connected to the top of the slider, and the displacement data of the slider can be directly read. Figure 3 The bearing to be tested is shown in FIG. 2 , wherein 21 is the curled edge of the dust cover of the bearing to be tested.

[0035] In one embodiment of the present invention, a positioning ring 43 is provided on the bottom surface of the positioning fixture 4. The positioning ring 43 is used to position the bearing under test. After the positioning fixture 4 is lowered, the positioning ring is placed on the bearing under test. To this end, the inner diameter of the positioning ring 43 is 0.1-0.3 mm larger than the outer diameter of the bearing under test, so as to accurately locate the outer diameter of the bearing under test.

[0036] In one embodiment of the present invention, the diameter of the positioning shaft 32 is 0.1-0.3 mm smaller than the inner diameter of the bearing to be tested, so that the cover inspection tool 3 can be positioned according to the inner diameter of the bearing to be tested 2 .

[0037] In one embodiment of the present invention, a flange 44 is provided on the top of the positioning fixture 4 , and the flange 44 is used to connect with the mobile frame 13 . Specifically, the flange 44 and the mobile frame 13 are connected by bolts to facilitate assembly and disassembly.

[0038] In one embodiment of the present invention, the slider 5 is clearance-fitted with the first cavity 41 , and the cover inspection tool 3 is clearance-fitted with the second cavity 42 , thereby enabling the slider 5 to slide in the first cavity and the cover inspection tool 3 to slide in the second cavity 42 .

[0039] To better achieve detection, the first cavity 41 is 4-6 mm higher than the slider 5. That is, the height of the first cavity 41 is H3 = H4 + 4-6 mm, where H4 is the height of the slider 5 to ensure the maximum distance of the cover inspection tool 3 moving up and down.

[0040] The second cavity 42 is 2-3 mm higher than the cover inspection tool 3. That is, the height H2 of the second cavity 42 = H1 + 2-3 mm, where H1 is the height of the cover inspection tool 3, to ensure that the cover inspection tool 3 has sufficient displacement space during inspection.

[0041] In one embodiment of the present invention, a countersunk hole 33 is provided in the positioning shaft 32 , and a bolt connected to the slider 5 is provided in the countersunk hole 33 .

[0042] In one embodiment of the present invention, the detection wedge 31 has an inclination angle of 30° to 40°, so as to ensure good contact with the dust cover curling edge 21 of the bearing 2 to be tested.

[0043] During operation, the specific implementation method of the present invention is as follows: first, the robot arm of the assembly production line places the bearing to be tested on the mounting table 11 of the measuring table 1, and then the cylinder drives the movable frame 13 to press down to fix the outer ring of the bearing to be tested 2 by the positioning tool 4, and the cover inspection tool 3 positions the inner hole of the bearing to be tested 2. At the same time, the dust cover curling edge of the bearing to be tested lifts the cover inspection tool 3 and the slider 5. After the slider 5 is lifted, the displacement of the slider is detected by the displacement sensor 14. The displacement is read on the displacement sensor and the riveting quality of the dust cover is judged. After the measurement is completed, the cylinder 12 drives the movable frame 13 to push up, release the bearing to be tested 2, and the robot moves the bearing to be tested 2 to the next workstation, and moves the new bearing to be tested 2 to the measuring table 1 for a new round of measurement.

[0044] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to examples, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A bearing dust cover riveting quality detection device, characterized in that: include: Measuring table (1), cover inspection tool (3), positioning tool (4) and slide block (5); The measuring table (1) comprises: a mounting table (11), a lifting drive assembly (12), a movable frame (13) and a displacement detection assembly (14); the bottom of the lifting drive assembly (12) is mounted on the mounting table (11); the movable frame (13) is mounted on the top of the lifting drive assembly (12); the lifting drive assembly (12) is used to drive the movable frame (13) to move up and down; the mounting table (11) is used to mount a bearing to be measured (2); and the displacement detection assembly (14) is mounted on the movable frame (13); The bottom surface of the cover inspection tool (3) is provided with a detection wedge (31) and a positioning shaft (32), the detection wedge (31) is arranged around the positioning shaft (32), and the positioning shaft (32) is used to position the inner hole of the bearing to be tested (2); The slider (5) is connected to the top end of the cover inspection tool (3); A first cavity (41) and a second cavity (42) are provided inside the positioning tool (4), the first cavity (41) is located above the second cavity (42), the slider (5) is provided in the first cavity (41), and the cover inspection tool (3) is provided in the second cavity (42); The top of the positioning fixture (4) is fixed to the movable frame (13), and the detection surface of the displacement detection component (14) faces the top of the slider (5).

2. The bearing dust cover riveting quality detection device according to claim 1, characterized in that: A positioning ring (43) is provided on the bottom surface of the positioning fixture (4), and the positioning ring (43) is used to position the bearing to be tested (2).

3. The bearing dust cover riveting quality detection device according to claim 2, characterized in that: The inner diameter of the positioning ring (43) is 0.1-0.3 mm larger than the outer diameter of the bearing (2) to be tested.

4. The bearing dust cover riveting quality detection device according to claim 1, characterized in that: The diameter of the positioning shaft (32) is 0.1-0.3 mm smaller than the inner diameter of the bearing (2) to be tested.

5. The bearing dust cover riveting quality detection device according to claim 1, characterized in that: A flange (44) is provided on the top of the positioning tool (4), and the flange (44) is used to be connected to the movable frame (13).

6. The bearing dust cover riveting quality detection device according to claim 1, characterized in that: The slider (5) is clearance-matched with the first cavity (41), and the cover inspection fixture (3) is clearance-matched with the second cavity (42).

7. The bearing dust cover riveting quality detection device according to claim 1, characterized in that: A countersunk hole (33) is provided in the positioning shaft (32), and a bolt connected to the slider (5) is provided in the countersunk hole (33).

8. The bearing dust cover riveting quality detection device according to claim 1, characterized in that: The first cavity (41) is 4-6 mm higher than the slider (5).

9. The bearing dust cover riveting quality detection device according to claim 1, characterized in that: The second cavity (42) is 2-3 mm higher than the cover inspection tool (3).

10. The bearing dust cover riveting quality detection device according to claim 1, characterized in that: The inclination angle of the detection wedge (31) is 30° to 40°.

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