Roundness testing fixture for special-shaped retainer

Abstract

This utility model provides a roundness inspection tool for irregularly shaped cages, comprising: a detection base consisting of three interconnected support rods forming an integral unit; a feeding assembly positioned in the center of the detection base; an oblong hole in the center of the three support rods; and the detection assembly secured within the oblong hole by bolts. In use, the irregularly shaped cage is placed on the feeding turntable, with the outer wall of the cage pressed against the product positioning tip. During inspection, a finger is placed on the inner wall of the irregularly shaped cage between the two product positioning tips, and the product reading rod is rotated back and forth between the two product positioning tips clockwise or counterclockwise to determine if the roundness of the product exceeds the tolerance. The tool is small and suitable for deployment on the production line, and its high inspection efficiency makes it suitable for rapid, batch inspection during production.

Description

Technical Field

[0001] This utility model relates to the field of bearing accessories, and in particular to the field of cage outer ring roundness detection technology, specifically a roundness inspection tool for irregularly shaped cages. Background Technology

[0002] The inner cage of the bearing separates the rolling elements through honeycomb holes or cross raceways. If the roundness deviation is too large, it will lead to uneven spacing of the rolling elements, causing local overload and reducing the bearing's load-bearing capacity.

[0003] There is a type of irregularly shaped cage with a regular circular top and a chamfer, and protruding ribs at the intervals between each circular hole at the bottom. Therefore, the inspection only needs to check the regular top area. In the current inspection process, the cage is arranged by means of tooling and then the coordinate measuring machine probe makes multiple points in the interval between the chamfer at the top of the irregularly shaped cage and the top of the circular hole to calculate whether the roundness of the regular surface at the top of the irregularly shaped cage is within the tolerance range of the process design. Because the area that can be marked during inspection is very small, the setup requires a high level of skill from the inspector, and the overall inspection efficiency of the coordinate measuring machine is poor, making it unsuitable for rapid batch inspection on the production line. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a roundness inspection tool for irregularly shaped cages to solve the difficulties of the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a roundness inspection tool for irregularly shaped cages, comprising:

[0006] The detection seat 1 is T-shaped and is composed of three support rods 11 connected together to form a single unit.

[0007] Material feeding group 2 is located in the center of the detection seat 1;

[0008] An oblong hole 12 is provided in the center of the three support rods 11;

[0009] The detection group 3 is bolted and secured in the elongated hole 12.

[0010] According to the preferred embodiment, the detection seat 1 is provided with rounded corners around its perimeter;

[0011] According to the preferred embodiment, the three support rods 11 are provided with a rounded corner 13 at their close surfaces for transition.

[0012] According to the preferred embodiment, the bottom of the detection seat 1 is provided with balancing heightening blocks 14 by bolts.

[0013] According to the preferred embodiment, the feeding group 2 includes:

[0014] Bearing mounting hole 21, wherein the bearing mounting hole 21 is formed at the center of the top of the test seat 1;

[0015] The disassembly hole 22 is located at the bottom of the test seat 1, and the top of the disassembly hole 22 communicates with the bearing mounting hole 21.

[0016] An annular mounting block 23 is fitted into the bearing mounting hole 21, and the inner diameter of the annular mounting block 23 is smaller than the inner diameter of the disassembly hole 22.

[0017] Rotating rod 24, which is interference-fitted and locked in the center of the annular mounting block 23;

[0018] The feeding turntable 25 is integrally mounted on the top of the rotating rod 24.

[0019] According to the preferred embodiment, the diameter of the disassembly hole 22 is larger than that of the disassembly hole 22.

[0020] According to the preferred embodiment, the outer diameter of the feeding turntable 25 is larger than the outer diameter of the annular mounting block 23.

[0021] According to the preferred scheme, detection group 3 includes:

[0022] The detector base 31 has a T-shaped bottom and is fitted into an oblong hole 12. A first threaded hole 32 is provided in the center of the bottom end of the detector base 31. A detector mounting slot 33 is provided in the center of the top end of the detector base 31. A second threaded hole 34 is provided on one side of the detector base 31 and communicates with the detector mounting slot 33.

[0023] Bolt 35 is inserted into threaded hole 32. The outer diameter of the top screw head of bolt 35 is larger than the width of the oblong hole 12. The bottom of the top screw head of bolt 35 abuts against the bottom of the detection seat 1.

[0024] A knob bolt 36, the bottom of which passes through the second threaded hole 34 and enters the fixture mounting slot 33 through a threaded engagement;

[0025] The product positioning tip 37 is fitted with a clearance fit in the instrument mounting slot 33 of the instrument base 31, which is close to the center of the support rod 11. The product positioning tip 37 has an arc-shaped round head 38 on the side near the feeding turntable 25.

[0026] A dial indicator mounting block 39 is fitted with a clearance fit in the gauge mounting slot 33 in the gauge base 31 of the support rod 11 on the side away from the product positioning tip 37. The top of the dial indicator mounting block 39 near the feeding turntable 25 is provided with an inclined surface 310. A gauge mounting hole 311 is opened in the center of the inclined surface 310, and a lever dial indicator 312 is inserted into the gauge mounting hole 311.

[0027] According to the preferred embodiment, the extension lines of the central axes of the two product positioning apexes 37 intersect at right angles.

[0028] This utility model employs a detection base, a feeding assembly, an oblong hole, and a detection assembly. Before use, the standard part is placed on the feeding turntable. The detection fixture base is moved along the oblong hole until the product positioning tip and the lever dial indicator abut against the outer wall of the standard part. The first bolt of the detection fixture base, which is equipped with the product positioning tip, is tightened. After the probe of the control lever dial indicator abuts against the outer wall of the standard part, the control lever dial indicator is adjusted to 0. During use, the irregularly shaped retainer is placed on the feeding turntable, and the outer wall of the irregularly shaped retainer abuts against the product positioning tip. During detection, the finger is placed on the inner wall of the irregularly shaped retainer between the two product positioning tips. The product reading lever dial indicator is rotated back and forth between the two product positioning tips clockwise or counterclockwise to determine whether the roundness of the product is out of tolerance. The fixture is small and suitable for deployment on the production line. It has high detection efficiency and is suitable for rapid batch detection during the production process.

[0029] 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

[0030] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0031] Figure 2 The diagram shows a three-dimensional structural schematic of the product of this utility model installed on the feeding assembly.

[0032] Figure 3 The diagram shown is an enlarged three-dimensional structural schematic of the detection seat in this utility model;

[0033] Figure 4 The diagram shown is an exploded view of the detection group in this utility model.

[0034] Figure 5 The diagram shown is an enlarged three-dimensional structural schematic of the lever dial indicator in this utility model.

[0035] Figure 6 The diagram shown is an enlarged three-dimensional structural schematic of the feeding turntable in this utility model.

[0036] Label Explanation

[0037] 1. Testing stand;

[0038] 11. Support rod; 12. Oblong hole; 13. Rounded corner; 14. Balancing height increase block;

[0039] 2. Feeding group;

[0040] 21. Bearing mounting hole; 22. Disassembly hole; 23. Annular mounting block; 24. Rotating rod; 25. Feeding turntable;

[0041] 3. Testing team;

[0042] 31. Testing instrument base; 32. No. 1 threaded hole; 33. Inspection instrument mounting slot; 34. No. 2 threaded hole; 35. No. 1 bolt; 36. Knob bolt; 37. Product positioning center; 38. Arc-shaped round head; 39. Dial indicator mounting block; 310. Inclined surface; 311. Indicator mounting hole; 312. Lever dial indicator; 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 roundness inspection tool for irregularly shaped cages, used in the process of inspecting the roundness of the outer ring of the cage. This utility model does not limit the outer diameter specification of the irregularly shaped cage to be inspected, but the structure of the inspection seat 1, the feeding group 2, the elongated hole 12 and the inspection group 3 is particularly suitable for the outer diameter inspection of the regular circular area at the top of the outer side wall of the irregularly shaped cage.

[0047] In general, the roundness inspection tool for the irregularly shaped cage proposed in this utility model mainly includes: an inspection seat 1, a feeding group 2, an oblong hole 12, and an inspection group 3. (See also...) Figure 1 It shows the arrangement of the detection seat 1, the feeding group 2, the oblong hole 12 and the detection group 3.

[0048] The roundness inspection tool for the irregularly shaped cage proposed in this utility model involves placing the standard part on the feeding turntable 25 before use. The inspection tool base 31 is moved along the elongated hole 12 until the product positioning tip 37 and the lever dial indicator 312 abut against the outer wall of the standard part. The first bolt 35 of the inspection tool base 31, which houses the product positioning tip 37, is tightened. After the probe of the control lever dial indicator 312 abuts against the outer wall of the standard part, the control lever dial indicator 312 is adjusted to 0. During use... Figure 2 As shown, the irregularly shaped retainer is placed on the feeding turntable 25, and the outer wall of the irregularly shaped retainer is pressed against the product positioning tip 37. During inspection, the finger is placed on the inner wall of the irregularly shaped retainer between the two product positioning tips 37, and the product reading rod is rotated back and forth between the two product positioning tips 37 clockwise or counterclockwise to determine whether the roundness of the product is out of tolerance. The small inspection tool is suitable for deployment on the production line, and the high inspection efficiency is suitable for rapid batch inspection during the production process.

[0049] The aforementioned testing seat 1 is T-shaped and consists of three support rods 11 connected together as one unit. The testing seat 1 has rounded corners around its perimeter, and the three support rods 11 have rounded corners 13 at their close surfaces to prevent the hands from hitting the testing seat 1 and causing scratches when it is quickly picked up during testing. The bottom of the testing seat 1 is equipped with balance lifting blocks 14 connected by bolts around its perimeter to make way for the head of bolt 35.

[0050] The aforementioned feeding assembly 2 is located in the center of the detection seat 1. The feeding assembly 2 includes: a bearing mounting hole 21, a disassembly hole 22, an annular mounting block 23, a rotating rod 24, and a feeding turntable 25. The bearing mounting hole 21 is located in the center of the top of the detection seat 1, and the disassembly hole 22 is located in the bottom of the detection seat 1. The top of the disassembly hole 22 communicates with the bearing mounting hole 21. The annular mounting block 23 is fitted into the bearing mounting hole 21. The inner diameter of the inner ring of the annular mounting block 23 is smaller than the inner diameter of the disassembly hole 22. The rotating rod 24 is clamped in the center of the annular mounting block 23 with an interference fit. The feeding turntable 25 is integrally set on the top of the rotating rod 24. The outer diameter of the feeding turntable 25 is larger than the outer diameter of the annular mounting block 23. It should be noted that the diameter of the disassembly hole 22 is larger than that of the annular mounting block 23. When it is necessary to disassemble and clean or replace the feeding turntable 25, the feeding turntable 25 and the annular mounting block 23 can be removed together by inserting a copper rod into the disassembly hole 22 and striking the bottom of the annular mounting block 23.

[0051] The aforementioned detection group 3 is bolted and secured within the oblong hole 12. Detection group 3 includes: a detection instrument base 31, a first bolt 35, a knob bolt 36, a product positioning center 37, a dial indicator mounting block 39, and a lever dial indicator 312. The bottom of the detection instrument base 31 is T-shaped and is secured within the oblong hole 12. A first threaded hole 32 is located at the center of the bottom of the detection instrument base 31. A fixture mounting slot 33 is located at the center of the top of the detection instrument base 31. A second threaded hole 34 is located on one side of the detection instrument base 31 and communicates with the fixture mounting slot 33. The first bolt 35 passes through the first threaded hole 32. The outer diameter of the first bolt head is larger than the width of the oblong hole 12. The bottom of the first bolt head rests against the bottom of the detection base 1. The first bolt 35 facilitates the fixing of the detection instrument base 31 to a specific section of the oblong hole 12. The knob bolt 36 is screwed through the threaded hole 34 at its bottom and enters the fixture mounting slot 33. The knob bolt 36 secures the product positioning tip 37 and the dial indicator mounting block 39 in the fixture mounting slot 33. The product positioning tip 37 is fitted with a clearance fit in the fixture mounting slot 33 in the detector base 31, which is close to the center of the support rod 11. The side of the product positioning tip 37 near the feeding turntable 25 has an arc-shaped round head 38, which can effectively prevent the tip from scratching the product surface. The dial indicator mounting block 39 is fitted with a clearance fit in the fixture mounting slot 33 in the detector base 31, which is close to the center of the support rod 11. The top of the dial indicator mounting block 39 near the feeding turntable 25 has an inclined surface 310, and a dial indicator mounting hole 311 is opened in the center of the inclined surface 310. A lever dial indicator 312 is inserted into the dial indicator mounting hole 311.

[0052] 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 roundness gauge for a profile cage, characterized by, include: The detection seat (1) is T-shaped and is composed of three support rods (11) connected together to form a whole. The feeding group (2) is set in the center of the detection seat (1); An oblong hole (12) is provided in the center of the three support rods (11); The detection group (3) is installed in the elongated hole (12) by means of bolts.

2. The roundness gauge for profiled retainer according to claim 1, characterized in that, The detection seat (1) has rounded corners around its perimeter.

3. The roundness gauge for profiled retainers according to claim 2, characterized in that, The three support rods (11) are provided with rounded corners (13) at their close surfaces.

4. The roundness gauge for the irregularly shaped cage according to claim 3, characterized in that, The bottom of the detection seat (1) is equipped with balance increasing blocks (14) connected by bolts around its perimeter.

5. The roundness inspection tool for irregularly shaped cages according to claim 4, characterized in that, The feeding group (2) includes: The bearing mounting hole (21) is located at the center of the top of the test seat (1); A disassembly hole (22) is provided at the bottom of the test seat (1), and the top of the disassembly hole (22) communicates with the bearing mounting hole (21); An annular mounting block (23) is fitted into the bearing mounting hole (21), and the inner diameter of the annular mounting block (23) is smaller than the inner diameter of the disassembly hole (22). Rotating rod (24), which is interference-fitted and locked in the center of the annular mounting block (23); The feeding turntable (25) is integrally mounted on the top of the rotating rod (24).

6. The roundness inspection tool for irregularly shaped cages according to claim 5, characterized in that, The diameter of the disassembly hole (22) is larger than that of the disassembly hole (22).

7. The roundness inspection tool for irregularly shaped cages according to claim 6, characterized in that, The outer diameter of the feeding turntable (25) is larger than the outer diameter of the annular mounting block (23).

8. The roundness inspection tool for irregularly shaped cages according to claim 7, characterized in that, The detection group (3) includes: The detector base (31) has a T-shaped bottom and is fitted into an elongated hole (12). A first threaded hole (32) is opened in the center of the bottom end of the detector base (31). A fixture mounting slot (33) is opened in the center of the top of the detector base (31). A second threaded hole (34) is opened on one side of the detector base (31) and communicates with the fixture mounting slot (33). Bolt No. 1 (35) is inserted into threaded hole No. 1 (32). The outer diameter of the top screw head of bolt No. 1 (35) is larger than the width of the oblong hole (12). The bottom of the top screw head of bolt No. 1 (35) abuts against the bottom of the detection seat (1). A knob bolt (36) is provided, the bottom of which passes through a threaded hole (34) and enters the fixture mounting slot (33) through a threaded connection; The product positioning tip (37) is fitted with a clearance fit in the inspection tool mounting slot (33) in the inspection tool base (31) which is close to the center of the support rod (11). The product positioning tip (37) has an arc-shaped round head (38) on the side near the feeding turntable (25). A dial indicator mounting block (39) is fitted with a clearance fit in the gauge mounting slot (33) in the gauge mounting slot (31) of the gauge base (31) on the side away from the product positioning tip (37). The top of the dial indicator mounting block (39) near the feeding turntable (25) is provided with an inclined surface (310). A gauge mounting hole (311) is opened in the center of the inclined surface (310). A lever dial indicator (312) is inserted into the gauge mounting hole (311).

Images