A bearing inner ring axial play testing fixture

Abstract

This utility model provides a bearing inner ring axial clearance gauge, comprising: a base with raising columns bolted around its bottom perimeter; a bearing outer ring abutment module bolted to one side of the base top; an adaptive bearing specification outer ring support module located on the top of the base away from the bearing outer ring abutment module; and a gauge module bolted to the top of the base on one side of the base, located at the bearing outer ring abutment module. The outer ring of the bearing to be tested abuts against the side wall of the No. 1 V-groove. The bottom of the outer ring of this side is placed on a stepped surface. The support rod is moved along the positioning groove to the bottom of the other side of the bearing outer ring. An inner ring detection cover is placed on top of the bearing inner ring. A dial indicator probe is placed against the top of the inner ring detection cover. After adjusting the dial indicator to 0, the thumbs of both hands press down on the left and right sides of the bearing outer ring, while the index fingers are used to press down on the bottom or inner side wall of the bearing inner ring and lift upwards. The dial indicator reading is recorded as the bearing inner ring axial clearance.

Description

Technical Field

[0001] This utility model relates to the field of testing, and in particular to the field of bearing clearance testing technology, specifically a bearing inner ring axial clearance gauge. Background Technology

[0002] In the bearing manufacturing process, detecting axial clearance is a crucial step in ensuring bearing assembly quality and performance. Axial clearance refers to the maximum allowable relative displacement of a bearing in the axial direction (i.e., the axis direction). Its magnitude directly affects the bearing's rotational accuracy, vibration, noise, and service life. Existing dedicated automatic bearing axial clearance detection fixtures are time-consuming for individual bearings and are heavy and inconvenient to transport. They are only suitable for full inspection of a batch of bearings after the entire bearing manufacturing and assembly is completed. They are not convenient for testing the inner ring of a bearing after temporary assembly. If an automatic bearing axial clearance detection fixture is configured for each department responsible for different manufacturing processes, the cost would be too high. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a bearing inner ring axial clearance gauge to solve the difficulties of the prior art.

[0004] To achieve the above and other related objectives, this utility model provides a bearing inner ring axial clearance gauge, comprising:

[0005] Base 1, with heightening columns 11 bolted around the bottom of the base 1;

[0006] Bearing outer ring abutment module 2, which is bolted to one side of the top of base 1;

[0007] Adaptive bearing specification outer ring support module 3, wherein the adaptive bearing specification outer ring support module 3 is disposed on the top of the base 1 away from the bearing outer ring abutting module 2;

[0008] Inspection module 4 is bolted to the top of the base 1 on the side of the bearing outer ring that abuts against module 2.

[0009] According to the preferred embodiment, the bearing outer ring abutment module 2 includes:

[0010] The bearing positioning block 21 is bolted to one side of the top of the base 1. The bearing positioning block 21 is 7-shaped. The top of the bearing positioning block 21 is the outer ring outer wall positioning section 22, and the bottom of the bearing positioning block 21 is the outer ring support section 23. The width of the outer ring outer wall positioning section 22 is greater than the width of the outer ring support section 23.

[0011] The first V-groove 24 is located in the center of the outer ring outer wall positioning section 22 near the central axis of the base 1.

[0012] The second V-groove 25 is located at the top of the outer ring lifting section 23, directly below the first V-groove 24.

[0013] According to the preferred embodiment, the first V-groove 24 and the second V-groove 25 are connected.

[0014] According to the preferred embodiment, the first V-groove 24 and the second V-groove 25 are coaxially arranged.

[0015] According to the preferred embodiment, the top of the second V-groove 25 is located on the side away from the central axis of the base 1 from the top of the first V-groove 24, so that a stepped surface 26 is formed at the connection between the first V-groove 24 and the second V-groove 25.

[0016] According to the preferred embodiment, the adaptive bearing specification outer ring support module 3 includes:

[0017] The positioning groove 31 is formed on the side wall of the top of the base 1 away from the bearing positioning block 21, and the positioning groove 31 is in the shape of an inverted T.

[0018] The lifting rod 32 is engaged in the positioning groove 31 at its bottom and moves left and right along the positioning groove 31. The bottom of the lifting rod 32 is provided with a locking block 33, the bottom end of which contacts the bottom of the positioning groove 31. An annular limiting block 34 is integrally provided in the center of the lifting rod 32, the bottom end of which contacts the top end of the base 1.

[0019] According to the preferred embodiment, the outer diameter of the annular limiting block 34 is greater than the minimum outer diameter of the positioning groove 31.

[0020] According to the preferred embodiment, the top end of the annular limiting block 34 is provided with rounded corners.

[0021] According to the preferred embodiment, the inspection module 4 includes:

[0022] The dial indicator bracket 41 is bolted to the bottom of the base 1 and located on one side of the bearing positioning block 21. The top of the dial indicator bracket 41 extends towards the positioning groove 31.

[0023] Dial indicator 42 is disposed between bearing positioning block 21 and lifting rod 32, and the dial indicator 42 is bolted to the top of dial indicator frame 41 in the center.

[0024] Inner ring detection cover plate 43, which is installed on the top of the inner ring of the bearing to be tested.

[0025] This utility model employs a vertical frame, top plate, transmission device, adsorption device, and adjustment device. One side of the outer ring of the bearing abuts against the left and right side walls of the first V-groove in the bearing outer ring abutment module. The bottom of this side of the outer ring is placed on the stepped surface. The lifting rod is moved along the positioning groove to the bottom of the other side of the outer ring. The inner ring of the bearing will naturally fall due to gravity. The inner ring detection cover is placed on top of the inner ring, and the dial indicator head is placed against the top of the inner ring detection cover. After adjusting the dial indicator to 0, the thumbs are pressed against the left and right sides of the outer ring of the bearing to be tested and pressed down. Then, the index fingers are used to press down on the bottom or inner side wall of the inner ring of the bearing to be tested and lifted upwards. The dial indicator reading is recorded as the axial clearance of the bearing inner ring. The following beneficial effects are achieved:

[0026] (1) The inspection tool has a simple structure and is easy to handle and move;

[0027] (2) The simple testing process reduces rework rate and improves production efficiency and yield.

[0028] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the present invention. Attached Figure Description

[0029] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0030] Figure 2 This is a three-dimensional structural diagram showing another perspective of the present invention and when the bearing is being inspected.

[0031] Figure 3 The diagram shown is an enlarged three-dimensional structural schematic of the bearing positioning block in this utility model.

[0032] Figure 4 The diagram shown is an enlarged three-dimensional structural schematic of the lifting rod in this utility model.

[0033] Figure 5 The diagram shown is an enlarged three-dimensional structural schematic of the inspection module in this utility model.

[0034] Label Explanation

[0035] 1. Base;

[0036] 11. Heightening column;

[0037] 2. Bearing outer ring abutment module;

[0038] 21. Bearing locating block; 22. Outer ring outer wall locating section; 23. Outer ring lifting section; 24. V-groove No. 1; 25. V-groove No. 2; 26. Stepped surface;

[0039] 3. Adaptive bearing specification outer ring support module;

[0040] 31. Positioning groove; 32. Lifting rod; 33. Locking block; 34. Annular limiting block;

[0041] 4. Inspection tool module;

[0042] 41. Dial indicator holder; 42. Dial indicator; 43. Inner ring inspection cover. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0044] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components shown in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0045] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0046] This utility model proposes a bearing inner ring axial clearance gauge for use in bearing clearance detection process. This utility model does not limit the type of clearance to be detected, but the structure of the base 1, bearing outer ring abutment module 2, adaptive bearing specification outer ring support module 3 and gauge module 4 is particularly suitable for bearing longitudinal clearance detection.

[0047] In general, the bearing inner ring axial clearance gauge proposed in this utility model mainly includes: a base 1, a bearing outer ring abutment module 2, an adaptive bearing specification outer ring support module 3, and a gauge module 4. (See also...) Figure 1 It shows the arrangement of the base 1, the bearing outer ring abutment module 2, the adaptive bearing specification outer ring support module 3, and the inspection fixture module 4.

[0048] When using the bearing inner ring axial clearance gauge proposed in this utility model, Figure 2 The temporary assembly of the bearing outer ring is placed against the left and right side walls of the first V-groove 24 in the bearing outer ring abutment module 2. The bottom of the bearing outer ring is placed on the stepped surface 26. The lifting rod 32 in the adaptive bearing specification outer ring lifting module 3 is moved along the positioning groove 31 to the bottom of the other side of the bearing outer ring to achieve bearing lifting and positioning. At this time, the bearing inner ring will naturally fall due to gravity. Select an inner ring detection cover plate 43 corresponding to the diameter of the bearing inner ring and cover the top of the bearing inner ring. Place the dial indicator test head against the top of the inner ring detection cover plate 43. After adjusting the value on the dial indicator 42 to 0, press down on the left and right sides of the bearing outer ring to be tested with both thumbs, and then lift up the bottom or inner side wall of the bearing inner ring to be tested with the index fingers. Record the value on the dial indicator 42, which is the axial clearance of the bearing inner ring. The inspection fixture has a simple structure, which is easy to move between different process departments to reduce rework rate. The test process is simple and improves production efficiency and yield.

[0049] The base 1 is provided with raising columns 11 around its bottom perimeter by bolts. The design of the raising columns 11 makes it easier to pick up the base 1 by creating a gap between it and the placement surface.

[0050] The aforementioned bearing outer ring abutment module 2 is bolted to one side of the top of the base 1. The bearing outer ring abutment module 2 includes: a bearing positioning block 21, a first V-groove 24, and a second V-groove 25. The bearing positioning block 21 is bolted to one side of the top of the base 1 and is shaped like a "7". The top of the bearing positioning block 21 is the outer ring outer wall positioning section 22, and the bottom is the outer ring lifting section 23. The width of the outer ring outer wall positioning section 22 is greater than the width of the outer ring lifting section 23. A first V-groove is formed in the center of the outer ring outer wall positioning section 22 near the central axis of the base 1. 24. A second V-groove 25 is opened at the top of the outer ring support section 23, directly below the first V-groove 24. The first V-groove 24 and the second V-groove 25 are connected and coaxially arranged. The top of the bottom of the second V-groove 25 is located on the side away from the central axis of the base 1 from the top of the bottom of the first V-groove 24, so that a stepped surface 26 is formed at the connection between the first V-groove 24 and the second V-groove 25. The 7-shaped bearing positioning block 21 cooperates with the first V-groove 24 and the second V-groove 25 of different sizes to form a stepped surface 26 that supports and positions the outer ring of the bearing on one side.

[0051] The aforementioned adaptive bearing specification outer ring support module 3 is located on the top of the base 1 away from the bearing outer ring abutting module 2. The adaptive bearing specification outer ring support module 3 includes: a positioning groove 31, a support rod 32, and an annular limiting block 34. The positioning groove 31 is opened on the side wall of the top of the base 1 away from the bearing positioning block 21. The positioning groove 31 is inverted T-shaped. The bottom of the support rod 32 is locked in the positioning groove 31 and moves left and right along the positioning groove 31. A locking block 33 is provided at the bottom of the support rod 32. The bottom end of the locking block 33 contacts the bottom of the positioning groove 31. An annular limiting block 34 is integrally provided in the center of the support rod 32. The bottom end of the annular limiting block 34 contacts the top of the base 1.

[0052] The aforementioned inspection module 4 is bolted to the top of the base 1 on one side of the bearing outer ring abutting against the module 2. The inspection module 4 includes: a dial indicator frame 41, a dial indicator 42, and an inner ring inspection cover plate 43. The bottom of the dial indicator frame 41 is bolted to the top of the base 1 on one side of the bearing positioning block 21. The top of the dial indicator frame 41 extends towards the positioning groove 31. The dial indicator 42 is placed between the bearing positioning block 21 and the lifting rod 32. The center of the dial indicator 42 is bolted to the top of the dial indicator frame 41. The inner ring inspection cover plate 43 is installed on the top of the inner ring of the bearing to be tested.

[0053] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A bearing inner ring axial clearance gauge, characterized in that, include: The base (1) has heightening columns (11) bolted around its bottom. The bearing outer ring abutment module (2) is installed on one side of the top of the base (1) by bolt connection; Adaptive bearing specification outer ring support module (3), wherein the adaptive bearing specification outer ring support module (3) is located on the top of the base (1) away from the bearing outer ring abutment module (2); Inspection module (4) is bolted to the top of the base (1) on one side of the bearing outer ring abutting the module (2).

2. The bearing inner ring axial clearance gauge according to claim 1, characterized in that, The bearing outer ring abutment module (2) includes: The bearing positioning block (21) is bolted to one side of the top of the base (1). The bearing positioning block (21) is 7-shaped. The top of the bearing positioning block (21) is the outer ring outer wall positioning section (22), and the bottom of the bearing positioning block (21) is the outer ring lifting section (23). The width of the outer ring outer wall positioning section (22) is greater than the width of the outer ring lifting section (23). The first V-groove (24) is located in the center of the outer ring outer wall positioning section (22) near the central axis of the base (1); The second V-groove (25) is located at the top of the outer ring lifting section (23) and directly below the first V-groove (24).

3. The bearing inner ring axial clearance gauge according to claim 2, characterized in that, The first V-groove (24) and the second V-groove (25) are connected.

4. The bearing inner ring axial clearance gauge according to claim 3, characterized in that, The first V-groove (24) and the second V-groove (25) are coaxially arranged.

5. The bearing inner ring axial clearance gauge according to claim 4, characterized in that, The top of the second V-groove (25) is located on the side away from the central axis of the base (1) from the top of the first V-groove (24), so that a stepped surface (26) is formed at the connection between the first V-groove (24) and the second V-groove (25).

6. The bearing inner ring axial clearance gauge according to claim 5, characterized in that, The adaptive bearing specification outer ring support module (3) includes: The positioning groove (31) is located on the side wall of the top of the base (1) away from the bearing positioning block (21), and the positioning groove (31) is in the shape of an inverted T. The lifting rod (32) is fitted at the bottom of the positioning groove (31) and moves left and right along the positioning groove (31). A locking block (33) is provided at the bottom of the lifting rod (32). The bottom end of the locking block (33) contacts the bottom of the positioning groove (31). An annular limiting block (34) is integrally provided in the center of the lifting rod (32). The bottom end of the annular limiting block (34) contacts the top end of the base (1).

7. The bearing inner ring axial clearance gauge according to claim 6, characterized in that, The outer diameter of the annular limiting block (34) is larger than the minimum outer diameter of the positioning groove (31).

8. The bearing inner ring axial clearance gauge according to claim 7, characterized in that, The top of the annular limiting block (34) is provided with rounded corners.

9. The bearing inner ring axial clearance gauge according to claim 8, characterized in that, The inspection module (4) includes: A dial indicator holder (41) is bolted to the bottom of the base (1) and located on one side of the bearing positioning block (21). The top of the dial indicator holder (41) extends toward the positioning groove (31). A dial indicator (42) is set between the bearing positioning block (21) and the lifting rod (32). The dial indicator (42) is bolted to the top of the dial indicator frame (41) in the center. Inner ring detection cover plate (43) is installed on the top of the inner ring of the bearing to be tested.

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