Positioning tool for detecting diameter of nylon retainer ball pocket hole

Abstract

The application discloses a positioning tool for detecting the diameter of a ball pocket hole of a nylon retainer, which comprises a base plate, a sliding seat arranged on the base plate, a Z-shaped plate arranged on the sliding seat, a vertical plate of the Z-shaped plate, a sliding groove arranged on the vertical plate, a sliding seat arranged in the sliding groove, a threaded adjusting shaft arranged on the upper end of the Z-shaped plate and connected with the sliding seat, and an arc-shaped plate group arranged between the sliding seats. The arc-shaped plate group is arranged to simulate the distribution circumference of the ball pocket hole of the nylon retainer, so that the positioning assembly can accurately fit the measured workpiece, the positioning datum is consistent with the measured object, and the repeatability and accuracy of measurement are effectively improved. The sliding seat can be freely adjusted in the horizontal and vertical directions on the base plate, the Z-shaped plate can be adjusted in the height direction through the threaded adjusting shaft, and the sliding adjustment function of the arc-shaped plate group in the guide groove is combined, so that the tool is suitable for nylon retainers of various specifications and models and has good universality.

Description

Technical Field

[0001] This application relates to the field of bearing technology, specifically a positioning tool for detecting the diameter of the ball pocket hole of a nylon cage. Background Technology

[0002] In rolling bearing structures, the cage (also known as a retainer) is a key component. Its function is to separate the rolling elements, guide their movement, and ensure their uniform distribution within the bearing, thereby improving the bearing's operational smoothness and service life. Nylon cages, due to their advantages such as light weight, corrosion resistance, low coefficient of friction, and good self-lubricating properties, are widely used in high-speed, light-load bearing applications or where noise control is critical.

[0003] In the manufacturing and inspection of nylon cages, the ball pocket orifice, as a key structure for accommodating rolling elements, directly affects the positioning accuracy of the rolling elements and the overall operating performance of the bearing. Therefore, measuring the diameter of the ball pocket orifice in nylon cages is a crucial step in quality control. However, because nylon is a non-metallic material, lacks magnetism, and has poor rigidity, it is prone to deformation during clamping. This means that traditional magnetic or chuck fixing methods used for metal cages cannot be directly applied to the inspection process of nylon cages.

[0004] Currently, the industry commonly uses adhesive bonding to fix small nylon cages to the testing platform for stable measurement during inspection. However, this method has several drawbacks: firstly, the bonding process is time-consuming, affecting testing efficiency; secondly, it is difficult to remove the nylon cage from the platform intact after testing, resulting in workpiece scrap and increased production costs. Summary of the Invention

[0005] The technical problem to be solved by this application is to overcome the existing defects and provide a positioning tool for detecting the diameter of the ball pocket hole of a nylon cage, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a positioning fixture for detecting the diameter of the ball pocket hole of a nylon retainer, comprising a pad, a sliding seat on the pad, a Z-shaped plate on the sliding seat, a groove on the vertical plate of the Z-shaped plate, a sliding seat within the groove, the sliding seat being connected to a threaded adjusting shaft located at the upper end of the Z-shaped plate, an arc-shaped plate assembly between the sliding seats, a guide groove on the arc-shaped plate assembly, a freely sliding positioning guide sleeve within the guide groove, and a positioning pressure shaft threadedly connected to the positioning guide sleeve.

[0007] As a preferred technical solution of this application, the sliding seat includes a guide slider and a support plate, the guide slider is disposed on the pad, and the support plate is slidably disposed on the guide slider.

[0008] As a preferred technical solution of this application, the support plate is provided with a sliding guide groove, and the setting direction of the sliding guide groove is perpendicular to the setting arc direction of the guide slider.

[0009] As a preferred technical solution of this application, the width of the sliding guide groove is consistent with the width of the guide block disposed at the bottom of the Z-shaped plate.

[0010] As a preferred technical solution of this application, the arc-shaped plate group is composed of two identical arc-shaped plates, and the two arc-shaped plates are set on the side wings of the sliding seat by fasteners.

[0011] As a preferred technical solution of this application, the arc plate is provided with a limit locking element for locking the positioning pressure shaft in a set position.

[0012] As a preferred technical solution of this application, the outer surface of the positioning pressure shaft is provided with an anti-slip texture to facilitate manual adjustment of the position of the positioning pressure shaft by the operator.

[0013] Compared with the prior art, the beneficial effects of this application are: by setting up an arc-shaped plate group to simulate the distribution circumference of the ball pocket holes of the nylon cage, this application enables the positioning component to accurately fit the workpiece being measured, ensuring that the positioning reference is consistent with the object being measured, and effectively improving the repeatability and accuracy of the measurement.

[0014] The sliding seat can be freely adjusted in the horizontal and vertical directions on the pad, and the Z-shaped plate can be adjusted in the height direction through the threaded adjustment shaft. Combined with the sliding adjustment function of the arc plate assembly in the guide groove, this tooling is suitable for various specifications and models of nylon cages and has good versatility.

[0015] At the same time, the positioning roller applies light pressure to the end face of the nylon cage for positioning, rather than using traditional chuck clamping or glue bonding methods. This avoids plastic deformation of the nylon cage due to excessive clamping force, thereby ensuring the authenticity of the measurement results and the reusability of the workpiece. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this application;

[0017] Figure 2 This is the main view of this application;

[0018] Figure 3 This is the right view of this application;

[0019] Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Pad, 2. Sliding seat, 3. Z-shaped plate, 4. Sliding seat, 5. Threaded adjustment shaft, 6. Arc plate assembly, 7. Positioning guide sleeve, 8. Positioning pressure shaft, 9. Guide slider, 10. Support plate, 11. Limiting locking component. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application (for ease of description and understanding, hereinafter referred to as...), Figure 2 (The above is described above). All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0022] Please see Figure 1-4 This application provides a technical solution: a positioning fixture for detecting the diameter of the ball pocket hole of a nylon retainer, including a pad 1, a sliding seat 2 on the pad 1, and a Z-shaped plate 3 on the sliding seat 2.

[0023] The sliding seat 2 has a good sliding adjustment function, which can flexibly adjust the horizontal or vertical position and provide a movable mounting base for the Z-shaped plate 3; it can adapt to the workpieces of different specifications or models and improve the versatility of the tooling.

[0024] The Z-shaped plate 3 has a Z-shaped bending structure, which includes one vertical section and two horizontal sections, and serves as the basic support for the height adjustment mechanism.

[0025] The vertical plate of the Z-shaped plate 3 is provided with a sliding groove, and a sliding seat 4 is provided in the sliding groove. The sliding seat 4 is connected to the threaded adjustment shaft 5 provided at the upper end of the Z-shaped plate 3.

[0026] The vertical section of the Z-shaped plate 3 is provided with a sliding groove for mounting the sliding seat 4. By rotating the threaded adjustment shaft 5, the sliding seat 4 can be moved up and down, and the height of the sliding seat 4 can be adjusted by rotating the threaded adjustment shaft 5, so as to accommodate workpieces of different heights.

[0027] An arc-shaped plate group 6 is provided between the sliding seats 4. The arc-shaped plate group 6 is provided with a guide groove, and a freely sliding positioning guide sleeve 7 is provided inside it. The positioning guide sleeve 7 is internally threaded to a positioning pressure shaft 8.

[0028] The arc plate assembly 6 consists of two identical arc plates, which are installed between two sliding seats 4 and fixed by fasteners (such as bolts or clips).

[0029] Its arc design simulates the circumference distribution of the ball pocket holes in the nylon cage, ensuring that the positioning components can accurately fit the workpiece being measured.

[0030] The guide groove on the arc plate assembly 6 provides the mounting base for the positioning guide sleeve 7; the width of the arc groove on the arc plate is slightly larger than the slider of the positioning guide sleeve 7, ensuring that it can slide smoothly in it; guiding the positioning guide sleeve 7 to move on the set trajectory.

[0031] The positioning pressure shaft 8 is screwed into the threaded hole inside the positioning guide sleeve 7. The positioning pressure shaft 8 is used to contact the end face of the nylon retainer to achieve positioning and prevent it from moving.

[0032] Furthermore, the sliding seat 2 includes a guide slider 9 and a support plate 10. The guide slider 9 is disposed on both sides of the pad 1, and the support plate 10 is slidably disposed on the guide slider 9.

[0033] Guide sliders 9 are installed on both sides of pad 1 as sliding support elements.

[0034] The support plate 10 is slidably connected to the guide slider 9 and is used to support the Z-shaped plate 3 and other measuring components. It enables position adjustment in the lateral direction.

[0035] Furthermore, the support plate 10 is provided with a sliding guide groove, the direction of which is perpendicular to the arc direction of the guide slider 9.

[0036] The support plate 10 has a sliding guide groove on its surface to support and guide the Z-shaped plate 3, providing a second-level sliding adjustment function to achieve multi-degree-of-freedom positioning.

[0037] Furthermore, the width of the sliding guide groove is consistent with the width of the guide block set at the bottom of the Z-shaped plate 3.

[0038] Furthermore, the arc-shaped plate group 6 is composed of two identical arc-shaped plates, which are fastened to the side wings of the sliding seat 4 by fasteners.

[0039] Furthermore, the arc-shaped plate is provided with a limit locking element 11, which is used to lock the positioning pressure shaft 8 in a set position.

[0040] The limiting locking component 11 is located at a designated position on the arc-shaped plate, usually near the positioning guide sleeve 7 or the guide groove. It is locked by a manually tightening screw to complete the position locking and fixation of the positioning guide sleeve 7, locking it in the current guide groove position and preventing the positioning pressure shaft 8 from shifting due to vibration or accidental contact.

[0041] Furthermore, the outer surface of the positioning pressure shaft 8 is provided with an anti-slip texture to facilitate manual adjustment of the position of the positioning pressure shaft 8 by the operator.

[0042] In use: Place the nylon retainer to be tested in the central area of ​​the pad 1, keeping it facing upwards and centered. Clean the surface of the hole to be tested of dust or oil to ensure accurate measurement. Manually push the sliding seat 2 to slide along the guide sliders 9 on both sides of the pad 1. Adjust the support plate 10 to a suitable position according to the diameter of the retainer to be tested, so that the Z-shaped plate 3 and its upper structure are roughly aligned with the nylon retainer. Make preliminary alignment by observing the matching degree between the outer contour of the retainer and the arc plate group 6. After adjustment, tighten the guide sliders 9. Tighten the locking screws to fix the sliding seat 2 in the current position. Rotate the threaded adjustment shaft 5 at the upper end of the Z-shaped plate 3 to drive the sliding seat 4 to move downward along the vertical slide groove. Adjust the height of the arc plate group 6. When the height is adjusted to a suitable level, manually push the positioning guide sleeve 7 to slide along the guide groove on the arc plate group 6. Adjust the positioning guide sleeve 7 to the working area position and tighten the limit locking part 11 to fix the positioning guide sleeve 7 in the current guide groove position. At this time, the positioning pressure shaft 8 starts to rotate and press down to contact the upper surface of the cage to achieve positioning.

[0043] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning tool for detecting the diameter of a ball pocket hole of a nylon retainer, comprising a base plate (1), wherein a sliding seat (2) is arranged on the base plate (1), and characterized in that: The sliding seat (2) is provided with a Z-shaped plate (3), and a sliding groove is provided on the vertical plate of the Z-shaped plate (3). A sliding seat (4) is provided in the sliding groove. The sliding seat (4) is connected to a threaded adjusting shaft (5) provided on the upper end of the Z-shaped plate (3). An arc plate group (6) is provided between the sliding seats (4). A guide groove is provided on the arc plate group (6), and a freely sliding positioning guide sleeve (7) is provided inside it. A positioning pressure shaft (8) is threadedly connected inside the positioning guide sleeve (7).

2. The positioning tool for detecting the diameter of the ball pocket of the nylon holder cage according to claim 1, characterized in that: The sliding seat (2) includes a guide slider (9) and a support plate (10). The guide slider (9) is disposed on the pad (1), and the support plate (10) is slidably disposed on the guide slider (9).

3. The positioning tool for detecting the diameter of the ball pocket of the nylon holder cage according to claim 2, characterized in that: The support plate (10) is provided with a sliding guide groove, and the setting direction of the sliding guide groove is perpendicular to the setting arc direction of the guide slider (9).

4. The positioning tool for detecting the diameter of the ball pocket of the nylon holder cage according to claim 3, characterized in that: The width of the sliding guide groove is consistent with the width of the guide block set at the bottom of the Z-shaped plate (3).

5. The positioning tool for detecting the diameter of the ball pocket of the nylon holder cage according to claim 1, characterized in that: The arc plate assembly (6) consists of two identical arc plates, which are fastened to the side wings of the sliding seat (4) by fasteners.

6. The positioning tool for detecting the diameter of the ball pocket of the nylon holder cage according to claim 5, characterized in that: The arc plate is provided with a limit locking element (11) for locking the positioning pressure shaft (8) in a set position.

7. The positioning tool for detecting the diameter of the ball pocket of the nylon holder cage according to claim 1, characterized in that: The outer surface of the positioning pressure shaft (8) is provided with an anti-slip texture to facilitate manual adjustment of the position of the positioning pressure shaft (8) by the operator.

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