A high-precision detection device for a rotary table multi-raceway

By designing a high-precision multi-raceway detection device for turntables, automatic measurement of the raceways of large bearings was achieved using photoelectric probes and drive devices. This solved the problem that existing equipment could not perform automatic measurements, improved measurement accuracy, and protected the inner ring of the bearing.

CN224535041UActive Publication Date: 2026-07-21HANDAN RIXIN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANDAN RIXIN AUTO PARTS CO LTD
Filing Date
2025-10-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing bearing turntable straightness measuring equipment cannot automatically measure the raceway of large bearings, and the measurement process requires manual intervention, which can easily cause bearing damage.

Method used

A high-precision detection device for multi-race tracks on a turntable was designed. It uses a photoelectric probe to perform non-contact measurement based on the principle of laser collimation. Combined with the algorithm to calculate the deviation, it realizes the automatic measurement of the straightness of the bearing inner ring. The device drives the bearing inner ring to rotate to perform multi-point measurement.

Benefits of technology

It enables automatic measurement of large bearing raceways, avoiding manual intervention, protecting the bearing inner ring, and improving measurement accuracy and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of rotary table multi-race high-precision detection devices, including base;Rotary disc, movably installed on base;Driving device one, for driving rotary disc to rotate;Fixed slide rail, for a group, is fixed on the both sides of rotary disc;Positioning column, for a group, is fixed on one end of a group of fixed slide rail;Sliding lock, for a group, movably installed on the other end of a group of fixed slide rail;Horizontal linear guide rail, located rotary disc side;Sliding seat, slidingly installed on horizontal linear guide rail;Rotary plate, bottom movably installed on sliding seat;Driving device two, installed on sliding seat, and driving rotary plate to rotate;Vertical linear guide rail, installed on rotary plate;Slide block, slidingly installed on vertical linear guide rail;Photoelectric probe, installed in the front end of slide block.The utility model has the beneficial effect that it realizes automatic measurement to large bearing raceway, without manual intervention in the measurement process, and bearing inner ring protection support.
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Description

Technical Field

[0001] This utility model relates to the field of bearing testing technology, specifically a high-precision testing device for multi-race tracks on a turntable. Background Technology

[0002] As the joints of industry and the supporting structure of mechanical transmission, bearings play a crucial role in the performance of mechanical equipment due to their precision and reliability. Bearing rings, as important components connecting shafts and bearing housings, require various quality inspections.

[0003] The straightness of a bearing slewing disc is one of the most important parameters affecting its performance. Substandard straightness directly impacts the bearing's rotational accuracy, vibration, noise, and even its lifespan and reliability, especially in high-precision fields such as military, railway, and automotive industries. Currently, existing bearing slewing disc straightness measurement equipment cannot automatically measure the raceways of large bearings; the measurement process often requires manual intervention, which is problematic given the relatively constant rotation of large bearings and the potential for damage. Utility Model Content

[0004] To address the above deficiencies, this utility model provides a high-precision detection device for multi-racetrack turntables to solve the problem of automatic measurement of the straightness of raceways in large bearings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-precision detection device for multi-track rotary tables, comprising: Base; Rotate the disc to allow it to be movably mounted on the base; Drive unit one is mounted on the base and is used to drive the rotating disk to rotate; The fixed slide rails, in a set, are fixed on both sides of the rotating disc; The positioning pins are a set and are fixed at one end of a set of fixed slide rails. The sliding locking device is a set, which is movably mounted on the other end of a set of fixed slide rails; A horizontal linear guide rail is mounted on the base and located on one side of the rotating disk; The sliding seat is slidably mounted on a horizontal linear guide rail. The rotating plate is movably mounted on a sliding seat at the bottom. Drive device two is mounted on the sliding seat and drives the rotating plate to rotate; A vertical linear guide rail is mounted on the rotating plate; The slider is slidably mounted on a vertical linear guide rail. The photoelectric probe is mounted on the front end of the slider.

[0006] Furthermore, a fixed seat is installed on the base, a circular slide rail is installed on the fixed seat, a circular rack is slidably installed on the outside of the circular slide rail, and the upper end of the circular rack is connected to the rotating disk.

[0007] Furthermore, a drive gear is installed on the rotating end of the drive device, and the drive gear meshes with a circular rack. The drive device drives the circular rack to rotate through the drive gear, thereby driving the rotating disk to rotate.

[0008] Furthermore, a set of fixed slide rails are each provided with a sliding groove corresponding to the sliding lock, which facilitates the left and right adjustment of the sliding lock.

[0009] Furthermore, a set of opposing side support slide rails are installed on both sides of the rotating disk, which can provide lateral support for the inner ring of the bearing.

[0010] Furthermore, the photoelectric probe has a rotation angle of 0-45°, which facilitates the automatic measurement of the straightness of the inner ring of bearings of different models.

[0011] This utility model provides a high-precision detection device for multi-raceway rotary tables, which has the following advantages: by placing the inner ring of a large bearing on a set of fixed slide rails, the positioning column and sliding lock can limit and fix the inner ring of the bearing; the photoelectric probe, based on the principle of laser collimation, collects position data in a non-contact manner, and calculates the deviation by combining the algorithm, thereby realizing the automatic measurement of the straightness of the inner ring of the bearing; rotating the disc can drive the inner ring of the bearing to rotate, thereby realizing the automatic measurement of the raceway of the large bearing; no manual intervention is required during the measurement process, and the inner ring of the bearing is protected and supported. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a high-precision multi-track detection device for a turntable according to the present invention; Figure 2 This is a top view of the fixed base described in this utility model; Figure 3 This is a top view of the photoelectric probe described in this utility model; Figure 4 This is a side view of the sliding seat described in this utility model; Figure 5 This is a schematic diagram of the fixing of the inner ring of the large bearing of this utility model; In the diagram: 1. Base; 2. Rotating disc; 3. Drive device one; 4. Fixed slide rail; 5. Positioning column; 6. Sliding lock; 7. Horizontal linear guide rail; 8. Sliding seat; 9. Rotating plate; 10. Drive device two; 11. Vertical linear guide rail; 12. Slider; 13. Photoelectric probe; 14. Fixed seat; 15. Circular slide rail; 16. Circular rack; 17. Drive gear; 18. Sliding groove; 19. Side support slide rail. Detailed Implementation

[0013] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0014] Please see Figures 1 to 5 As shown in the figure, this application embodiment provides a high-precision detection device for a rotary table with multiple raceways, including a base 1; a rotating disk 2, movably mounted on the base 1; a drive device 3, mounted on the base 1 and used to drive the rotating disk 2 to rotate; a set of fixed slide rails 4, fixed on both sides of the rotating disk 2; a set of positioning pins 5, fixed at one end of the set of fixed slide rails 4; a set of sliding locks 6, movably mounted on the other end of the set of fixed slide rails 4; a horizontal linear guide rail 7, mounted on the base 1 and located on one side of the rotating disk 2; a sliding seat 8, slidably mounted on the horizontal linear guide rail 7; a rotating plate 9, movably mounted on the sliding seat 8 at its bottom; a drive device 10, mounted on the sliding seat 8 and used to drive the rotating plate 9 to rotate; a vertical linear guide rail 11, mounted on the rotating plate 9; a slider 12, slidably mounted on the vertical linear guide rail 11; and a photoelectric probe 13, mounted on the front end of the slider 12.

[0015] In this embodiment, drive device 3 and drive device 10 respectively adopt stepper motors. During measurement, the large bearing inner ring is first suspended on a set of fixed slide rails 4, and one end of the inner wall of the bearing inner ring is tightly attached to a set of positioning pins 5 to achieve positioning of the bearing inner ring. The sliding lock 6 adopts a waist-hole type. When in use, first unlock it, move it to the desired position, and then rotate the knob in the opposite direction to lock it. The locking force generated by the internal wedge structure achieves the limiting and fixing of the other end of the inner wall of the bearing inner ring. This is an existing product. The sliding seat 8 can drive the photoelectric probe 13 to move horizontally on the horizontal linear guide rail 7. The slider 12 drives the photoelectric probe 13 to move vertically on the vertical linear guide rail 11. With the help of the drive device 2 10, the photoelectric probe 13 can be deflected. The photoelectric probe 13 is based on the laser collimation principle and collects position data in a non-contact manner. Combined with the algorithm to calculate the deviation, it realizes the automatic measurement of the straightness of the bearing inner ring. The rotating disk 2 can drive the bearing inner ring to rotate, realizing the automatic measurement of multiple points of the raceway of large bearings. No manual intervention is required during the measurement process, and it provides protective support for the bearing inner ring. The horizontal linear guide rail 7 is lower than the fixed slide rail 4, so there is no interference when rotating.

[0016] In some embodiments, a fixed seat 14 is mounted on the base 1, a circular slide rail 15 is mounted on the fixed seat 14, a circular rack 16 is slidably mounted on the outside of the circular slide rail 15, and the upper end of the circular rack 16 is connected to the rotating disk 2; a drive gear 17 is mounted on the rotating end of the drive device 3, and the drive gear 17 meshes with the circular rack 16; as Figure 2 As shown, the drive device 3 drives the circular rack 16 to rotate through the drive gear 17, which in turn drives the rotating disk 2 to rotate.

[0017] In some embodiments, a set of fixed slide rails 4 are respectively provided with sliding grooves 18 corresponding to the sliding locking device 6, so as to facilitate the left and right adjustment of the sliding locking device 6.

[0018] In some embodiments, a set of opposing side support slide rails 19 are installed on both sides of the rotating disk 2, which can provide side support for the inner ring of the bearing.

[0019] In some embodiments, the photoelectric probe 13 rotates at an angle of 0-45°, which facilitates the automatic measurement of the straightness of the inner ring of bearings of different models.

[0020] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A high-precision detection device for multi-track rotary tables, characterized in that: include Base (1); Rotate the disc (2) and movably mount it on the base (1); Drive device 1 (3) is mounted on base (1) and is used to drive rotating disk (2) to rotate; Fixed slide rails (4) are a set and are fixed on both sides of the rotating disk (2); Positioning pins (5) are a set and are fixed at one end of a set of fixed slide rails (4); The sliding locking device (6) is a set, which is movably installed on the other end of a set of fixed slide rails (4); A horizontal linear guide (7) is mounted on the base (1) and located on one side of the rotating disk (2); The sliding seat (8) is slidably mounted on the horizontal linear guide rail (7); The rotating plate (9) is movably mounted on the sliding seat (8) at its bottom; Drive device 2 (10) is mounted on sliding seat (8) and drives rotating plate (9) to rotate; A vertical linear guide rail (11) is mounted on a rotating plate (9); The slider (12) is slidably mounted on the vertical linear guide rail (11); The photoelectric probe (13) is installed at the front end of the slider (12).

2. The high-precision detection device for multi-track turntables according to claim 1, characterized in that, A fixed seat (14) is installed on the base (1), and a circular slide rail (15) is installed on the fixed seat (14). A circular rack (16) is slidably installed on the outside of the circular slide rail (15), and the upper end of the circular rack (16) is connected to the rotating disk (2).

3. The high-precision detection device for multi-track turntables according to claim 2, characterized in that, The drive device (3) has a drive gear (17) mounted on its rotating end, and the drive gear (17) meshes with a circular rack (16).

4. The high-precision detection device for multi-track turntables according to claim 1, characterized in that, A set of fixed slide rails (4) each has a sliding groove (18) corresponding to the sliding lock (6).

5. The high-precision detection device for multi-track turntables according to claim 1, characterized in that, A set of opposing side support slide rails (19) are installed on both sides of the rotating disk (2).

6. The high-precision detection device for multi-track turntables according to claim 1, characterized in that, The photoelectric probe (13) has a rotation angle of 0-45°.