Superfinishing machine main shaft detection device

Abstract

The utility model discloses a superfinishing machine main shaft detection device, which comprises a fixed installation frame, a detection part, a limit monitoring part and a fixed bottom plate, the fixed bottom plate is fixedly connected to the bottom end of the fixed installation frame, and the limit monitoring part is arranged in the fixed installation frame. The detection parts are arranged at the two ends of the limiting monitoring part, and the detection parts are fixedly arranged on the fixed mounting frame. According to the utility model, the main shaft for sampling inspection can be adaptively limited in the limiting monitoring frame through the adaptive limiting groove; the diameter of the main shaft and whether small-angle deflection excursion occurs in the rotating process of the main shaft can be conveniently and accurately detected through laser distance measuring sensors and laser interferometers which are uniformly distributed and a pressure sensor arranged between a detection spring and a fixed limiting disc; sampled main shaft detection is convenient and high in efficiency.

Description

Technical Field

[0001] This utility model relates to the field of spindle testing technology, specifically to a spindle testing device for ultra-precision machines. Background Technology

[0002] In ultra-precision lathes and grinding machines, precision spindles are used. During operation, the spindle must run stably without any slight deviation, ensuring stable and precise drive while reducing friction between itself and the bearing. Therefore, the spindle needs to be inspected after production to check for any deviations in its diameter and rotational stability. Existing inspection equipment is inconvenient to use, inefficient, and lacks accuracy. Therefore, an ultra-precision machine spindle inspection device is needed to solve the aforementioned problems. Utility Model Content

[0003] The purpose of this invention is to provide a detection device for the spindle of an ultra-precision machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a superprecision machine spindle detection device, comprising a fixed mounting frame, a detection part, a limit monitoring part, and a fixed base plate, wherein the fixed base plate is fixedly connected to the bottom end of the fixed mounting frame, the limit monitoring part is disposed inside the fixed mounting frame, the detection part is disposed at both ends of the limit monitoring part, and the detection part is fixedly disposed on the fixed mounting frame.

[0005] Preferably, the limit monitoring unit includes a limit monitoring frame, a fixed limit plate, a detection spring, and an adapter limit groove. The detection spring is fixedly connected to the middle of the outer end face of the limit monitoring frame through the fixed limit plate, and a pressure sensor is provided at the position where the detection spring contacts the fixed limit plate. The adapter limit groove is opened through the middle of the limit monitoring frame.

[0006] Preferably, a detection ring is fixedly connected to the middle of both ends of the limit monitoring frame, and laser ranging sensors are uniformly fixedly installed on the detection ring.

[0007] Preferably, the limit monitoring frame is cubic in shape, and the end of the detection spring facing away from the limit monitoring frame is fixedly connected to the fixed installation frame through a fixed limit plate.

[0008] Preferably, the detection unit includes a wiring hole, a fixed connecting plate, and a laser interferometer. The wiring hole is formed through the fixed connecting plate, and the laser interferometer is fixedly mounted on the fixed connecting plate.

[0009] Preferably, there are four laser interferometers in one detection unit and four laser ranging sensors on one detection ring, and the wiring hole is located outside the laser ranging sensor.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention allows the spindle to be inspected to be positioned within the limit monitoring frame via an adapter limit groove. During the spindle's rotation, the diameter of the spindle and whether there is a small-angle skew during rotation can be conveniently and accurately detected by the evenly distributed laser rangefinder, laser interferometer, and pressure sensor between the detection spring and the fixed limit plate. This makes the inspection of the sampled spindle convenient and efficient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the limit monitoring unit of this utility model;

[0014] Figure 3 This is a schematic diagram of the detection unit structure of this utility model.

[0015] In the diagram: 1-Fixed mounting frame, 2-Detection unit, 3-Limit monitoring unit, 4-Fixed base plate, 5-Limit monitoring frame, 7-Fixed limit plate, 8-Detection spring, 9-Adaptive limit groove, 10-Detection ring, 11-Laser rangefinder sensor, 12-Wiring hole, 13-Fixed connecting plate, 14-Laser interferometer. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-3 As shown, one embodiment of this utility model is provided: a superprecision machine spindle detection device, including a fixed mounting frame 1, a detection part 2, a limit monitoring part 3 and a fixed base plate 4. The fixed base plate 4 is fixedly connected to the bottom end of the fixed mounting frame 1. The limit monitoring part 3 is disposed inside the fixed mounting frame 1. The detection part 2 is disposed at both ends of the limit monitoring part 3 and is fixedly disposed on the fixed mounting frame 1.

[0018] The limit monitoring unit 3 includes a limit monitoring frame 5, a fixed limit plate 7, a detection spring 8, and an adapter limit groove 9. The detection spring 8 is fixedly connected to the middle of the outer end face of the limit monitoring frame 5 through the fixed limit plate 7, and a pressure sensor is provided at the position where the detection spring 8 contacts the fixed limit plate 7. The adapter limit groove 9 is opened through the middle of the limit monitoring frame 5.

[0019] The limit monitoring frame 5 has a detection ring 10 fixedly connected to the middle of both ends. Laser rangefinders 11 are evenly fixedly installed on the detection ring 10. The diameter of the spindle can be detected by the laser rangefinders 11.

[0020] The limit monitoring frame 5 is set in a cube shape. The end of the detection spring 8 that is away from the limit monitoring frame 5 is fixedly connected to the fixed installation frame 1 through the fixed limit plate 7, which plays a role in stabilizing the limit.

[0021] The detection unit 2 includes a wiring hole 12, a fixed connecting plate 13, and a laser interferometer 14. The wiring hole 12 is opened through the fixed connecting plate 13, and the laser interferometer 14 is fixedly installed on the fixed connecting plate 13. The laser interferometer 14, which is evenly and symmetrically arranged, can accurately detect whether there is any deviation during the rotation of the spindle.

[0022] There are four laser interferometers 14 in a detection unit 2, and four laser rangefinders 11 are set on a detection ring 10. The wiring hole 12 is located on the outside of the laser rangefinder 11, and the wiring hole 12 facilitates the wiring of the laser rangefinder 11.

[0023] Working principle: After fixing one end of the spindle to be inspected, the drive is activated, and the spindle is inserted into the matching limiting groove 9. The spindle rotates in a limited manner by fitting the limiting monitoring frame 5 through the matching limiting groove 9. When the spindle being manufactured has a slight bend, it will continuously squeeze one side of the limiting monitoring frame 5 during rotation, causing the limiting monitoring frame 5 to compress the detection spring 8 on one side. At this time, the pressure value detected by the pressure sensor in the middle of each fixed limiting plate 7 will continuously change, thereby determining whether there is a slight deviation during the rotation of the spindle. Through the symmetrically distributed detection unit 2, the laser interferometer 14 evenly and symmetrically distributed in the detection unit 2 can detect the distance between the laser interferometer and the spindle with millimeter-level accuracy. This allows the detection of slight bends or slight deviations during the rotation of the spindle being sampled for inspection. The evenly distributed laser rangefinder 11 can detect multiple points on the spindle, determining whether the diameter of the manufactured spindle meets the requirements. The detection data in this device can be transmitted to the detection terminal for display, making the detection convenient and fast.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detection device for a superprecision machine spindle, comprising a fixed mounting frame (1), a detection unit (2), a limit monitoring unit (3), and a fixed base plate (4), characterized in that: The fixed base plate (4) is fixedly connected to the bottom end of the fixed mounting frame (1). The limit monitoring part (3) is disposed inside the fixed mounting frame (1). The detection part (2) is disposed at both ends of the limit monitoring part (3) and is fixedly disposed on the fixed mounting frame (1). The limit monitoring part (3) includes a limit monitoring frame (5), a fixed limit plate (7), a detection spring (8), and an adapter limit groove (9). The detection spring (8) is fixedly connected to the middle of the outer end face of the limit monitoring frame (5) through the fixed limit plate (7). A pressure sensor is disposed at the position where the detection spring (8) contacts the fixed limit plate (7). The adapter limit groove (9) is opened through the bottom end of the fixed mounting frame (1). The limit monitoring frame (5) is located in the middle of the two ends of the limit monitoring frame (5) and a detection ring (10) is fixedly connected to the middle of the two ends of the detection ring (10). Laser range sensors (11) are uniformly fixedly installed on the detection ring (10). The detection unit (2) includes a wiring hole (12), a fixed connecting plate (13) and a laser interferometer (14). The wiring hole (12) is opened through the fixed connecting plate (13). The laser interferometer (14) is fixedly installed on the fixed connecting plate (13). There are four laser interferometers (14) in one detection unit (2) and four laser range sensors (11) are set on one detection ring (10). The wiring hole (12) is located outside the laser range sensor (11).

2. The ultra-precision machine spindle detection device according to claim 1, characterized in that: The limit monitoring frame (5) is set in a cube shape, and the end of the detection spring (8) facing away from the limit monitoring frame (5) is fixedly connected to the fixed installation frame (1) through the fixed limit plate (7).

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