Precise chain transmission mechanism and precision compensation system

Abstract

The utility model relates to the technical field of motion control, and discloses a precise chained transmission mechanism and a precision compensation system.The precise chained transmission mechanism comprises a supporting assembly, the supporting assembly comprises a supporting plate, a supporting frame is fixedly installed on the outer surface of the supporting plate, a laser interferometer is fixedly connected into the supporting frame, and the laser interferometer is fixedly connected with the supporting plate. A limiting plate is fixedly mounted at the top of the supporting plate, and a protective pad is fixedly mounted on the outer surface of the limiting plate. The limiting frame and the mounting plate are connected through the chain, the sliding block at the bottom of the mounting plate is in sliding fit with the sliding rail, and the interference mirror is fixed by the supporting rod at the top of the mounting plate, so that the interference mirror is driven to move stably according to certain limiting conditions when the linear motor rotor moves; therefore, the effect of accurately measuring parameters such as displacement and angle when the interference mirror interacts with the laser interferometer is achieved, the accuracy of precision measurement is improved, and automatic operation measurement precision compensation of the linear motor platform is achieved.

Description

Technical Field

[0001] This utility model relates to the field of motion control technology, and in particular to a precision chain transmission mechanism and a precision compensation system. Background Technology

[0002] In practical use, transmission mechanisms with similar structures still have many defects. For example, existing transmission mechanisms are mainly composed of lead screws or belts. These two types of transmission mechanisms are inefficient, have low precision, and are not easy to maintain. At the same time, on the linear motor platform, due to installation and assembly reasons, there is a certain error between the actual physical position of the linear motor mover relative to the origin and the position data fed back by the encoder. In applications with high precision requirements, it is necessary to reduce or even eliminate this error. Therefore, it is necessary to design a precision chain transmission mechanism. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a precision chain transmission mechanism.

[0004] This utility model is achieved using the following technical solution: a precision chain transmission mechanism, comprising a support assembly, the support assembly including a support plate, a support frame fixedly mounted on the outer surface of the support plate, a laser interferometer fixedly connected inside the support frame, a limit plate fixedly mounted on the top of the support plate, a protective pad fixedly mounted on the outer surface of the limit plate, and further comprising:

[0005] A limiting component, the limiting component including a motor stator fixedly installed at the center of the top of the support plate;

[0006] The transmission assembly includes a linear motor mover slidably mounted on the top of a slide rail, and an interference mirror is fixedly mounted on the top of the linear motor mover via a mounting plate.

[0007] As a further improvement to the above solution, a limit frame is fixedly installed on one side of the motor stator, and a chain is fixedly connected inside the limit frame.

[0008] As a further improvement to the above solution, one side of the chain is fixedly connected to the inner wall of the limiting frame, and the side of the chain away from the limiting frame is fixedly connected to the outer surface of the mounting plate.

[0009] As a further improvement to the above solution, the linear motor actuator is slidably mounted on the top of the slide rail, and a mounting plate is fixedly mounted on the top of the linear motor actuator.

[0010] The above technical solution enables precise transmission and motion restriction between the mounting plate and the limit frame, thereby ensuring the accuracy of relative motion between components when the precision chain transmission mechanism is working, which helps to improve measurement accuracy.

[0011] As a further improvement to the above solution, a slider is fixedly installed on the bottom of the mounting plate, and the slider is slidably installed on the outer surface of the slide rail.

[0012] The above technical solution enables the mounting plate to move linearly along with the linear motor, thereby providing a stable linear motion trajectory for the mounting plate and the interferometer, which helps to achieve accurate measurement results.

[0013] As a further improvement to the above solution, a support rod is fixedly installed on the top of the mounting plate, and an interferometer is fixedly installed on the top of the support rod. The interferometer is matched with the laser interferometer.

[0014] Another objective of this utility model is to provide a precision compensation system, which includes a precision chain drive mechanism and a host computer, wherein the host computer is communicatively connected to the precision chain drive mechanism.

[0015] The above technical solution further stabilizes the mounting plate during linear motion, enhances the smoothness of the mounting plate's movement, thereby reducing the swaying of the mounting plate during movement, improving the interferometer's movement accuracy, and ultimately improving measurement accuracy.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention utilizes a chain-connected limiting frame and mounting plate, along with the sliding cooperation between the bottom slider of the mounting plate and the slide rail, and the structural operation of the interferometer fixed by the top support rod of the mounting plate. This enables the interferometer to move stably and according to certain constraints when the linear motor moves, thereby achieving the effect of accurately measuring parameters such as displacement and angle when the interferometer interacts with the laser interferometer. This improves the accuracy of precision measurement and realizes automatic measurement accuracy compensation for the linear motor platform.

[0018] This utility model utilizes a structure consisting of a support plate, a support frame, a limiting plate, and a protective pad on their outer surface. The support plate serves as the basic support, the support frame secures the laser interferometer, and the limiting plate and protective pad provide protection. This structure drives the entire precision chain transmission mechanism to stably support each component and protect related components, thereby ensuring the normal operation of the mechanism, reducing the risk of component wear and damage, extending the service life of the mechanism, and helping to maintain measurement accuracy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2This is a schematic diagram of the limiting frame structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the support plate structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the transmission component structure of this utility model.

[0023] Explanation of key symbols:

[0024] 1. Support assembly; 101. Support plate; 102. Support frame; 103. Laser interferometer; 104. Limiting plate; 105. Protective pad; 2. Limiting assembly; 201. Slide rail; 202. Motor stator; 203. Limiting frame; 204. Chain; 3. Transmission assembly; 301. Linear motor mover; 302. Mounting plate; 303. Slider; 304. Support rod; 305. Interferometer. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-4 This embodiment of a precision chain drive mechanism includes a support assembly 1, which includes a support plate 101. A support frame 102 is fixedly mounted on the outer surface of the support plate 101. A laser interferometer 103 is fixedly connected inside the support frame 102. A limit plate 104 is fixedly mounted on the top of the support plate 101. A protective pad 105 is fixedly mounted on the outer surface of the limit plate 104. The mechanism also includes:

[0028] Limiting component 2, including motor stator 202 fixedly installed at the center of the top of support plate 101;

[0029] The transmission assembly 3 includes a linear motor mover 301 that is slidably mounted on the top of the slide rail 201. An interference mirror 305 is fixedly mounted on the top of the linear motor mover 301 via a mounting plate 302.

[0030] A limit frame 203 is fixedly installed on one side of the motor stator 202, and a chain 204 is fixedly connected inside the limit frame 203.

[0031] One side of the chain 204 is fixedly connected to the inner wall of the limit frame 203, and the side of the chain 204 away from the limit frame 203 is fixedly connected to the outer surface of the mounting plate 302.

[0032] The motor stator 202 in the limiting assembly 2 is fixedly installed at the top center of the support plate 101. A chain 204 is fixedly connected inside the limiting frame 203 on one side of the motor stator 202. One side of the chain 204 is fixedly connected to the inner wall of the limiting frame 203, and the other side is fixedly connected to the outer surface of the mounting plate 302. The limiting frame 203 and the mounting plate 302 are connected by the chain 204, which limits the range of motion of the mounting plate 302.

[0033] The linear motor mover 301 is slidably mounted on the top of the slide rail 201, and a mounting plate 302 is fixedly mounted on the top of the linear motor mover 301.

[0034] A slider 303 is fixedly installed on the bottom of the mounting plate 302, and the slider 303 is slidably installed on the outer surface of the slide rail 201.

[0035] A support rod 304 is fixedly mounted on the top of the mounting plate 302, and an interferometer 305 is fixedly mounted on the top of the support rod 304. The interferometer 305 is matched with the laser interferometer 103.

[0036] As the mounting plate 302 moves, the interferometer 305 mounted on the top of the support rod 304 also moves. Since the interferometer 305 is matched with the laser interferometer 103, the movement of the interferometer 305 will change its relative positional relationship with the laser interferometer 103. The laser interferometer 103 can make precise measurements based on the positional changes of the interferometer 305, such as measuring parameters like displacement and angle.

[0037] The implementation principle of a precision chain transmission mechanism in this application embodiment is as follows: the support plate 101 in the support assembly 1 is the basic support part of the entire mechanism, the support frame 102 is fixed on the outer surface of the support plate 101, and a laser interferometer 103 is fixedly connected inside the support frame 102. The laser interferometer 103 can be used to measure parameters such as displacement of related components. The limiting plate 104 is fixed on the top of the support plate 101, and the protective pad 105 on its outer surface plays a protective and buffering role.

[0038] In the limiting assembly 2, the motor stator 202 is fixedly installed at the top center of the support plate 101. A chain 204 is fixedly connected inside the limiting frame 203 on one side of the motor stator 202. One side of the chain 204 is fixedly connected to the inner wall of the limiting frame 203, and the other side is fixedly connected to the outer surface of the mounting plate 302. The chain 204 connects the limiting frame 203 and the mounting plate 302, limiting the range of motion of the mounting plate 302. In the transmission assembly 3, the linear motor mover 301 is slidably installed on the top of the slide rail 201. An interferometer 305 is fixedly installed on the top of the linear motor mover 301 through the mounting plate 302. The slider 303 at the bottom of the mounting plate 302 is slidably installed on the outer surface of the slide rail 201, further ensuring the stable movement of the mounting plate 302 and its components in the linear direction. The support rod 304 at the top of the mounting plate 302 fixes the interferometer 305 at a suitable height. The interferometer 305 is matched with the laser interferometer 103 for related measurement or optical operations.

[0039] When the linear motor operates, the linear motor mover 301 begins to slide on the slide rail 201. Since a mounting plate 302 is fixedly installed on the top of the linear motor mover 301, the mounting plate 302 moves together with the linear motor mover 301. The slider 303 at the bottom of the mounting plate 302 slides along the outer surface of the slide rail 201, ensuring the smooth movement of the mounting plate 302. The movement of the mounting plate 302 is transmitted to the limiting frame 203 via the chain 204. Because one side of the chain 204 is fixed to the inner wall of the limiting frame 203 and the other side is fixed to the outer surface of the mounting plate 302, the chain 204 will drive the limiting frame 203 to move accordingly during the movement of the mounting plate 302. The chain 204, driven by a trend or under corresponding tension, restricts and guides the movement of the mounting plate 302. As the mounting plate 302 moves, the interferometer 305 mounted on the top of the support rod 304 also moves. Since the interferometer 305 is matched with the laser interferometer 103, the movement of the interferometer 305 changes its relative position to the laser interferometer 103. The laser interferometer 103 can perform precise measurements based on the positional changes of the interferometer 305, such as measuring displacement, angle, and other parameters. This enables the precision chain drive mechanism to perform its function in precision measurement or other work requiring precise control of motion and measurement.

[0040] Another objective of this utility model is to provide a precision compensation system, which includes a precision chain drive mechanism and a host computer, wherein the host computer is communicatively connected to the precision chain drive mechanism.

[0041] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A precision chain drive mechanism, comprising a support assembly (1), the support assembly (1) comprising a support plate (101), a support frame (102) fixedly mounted on the outer surface of the support plate (101), a laser interferometer (103) fixedly connected inside the support frame (102), a limit plate (104) fixedly mounted on the top of the support plate (101), and a protective pad (105) fixedly mounted on the outer surface of the limit plate (104), characterized in that, Also includes: Limiting component (2), the limiting component (2) includes a motor stator (202) fixedly installed at the center of the top of the support plate (101); The transmission assembly (3) includes a linear motor mover (301) slidably mounted on the top of the slide rail (201), and an interference mirror (305) is fixedly mounted on the top of the linear motor mover (301) via a mounting plate (302).

2. The precision chain drive mechanism as described in claim 1, characterized in that: A limit frame (203) is fixedly installed on one side of the motor stator (202), and a chain (204) is fixedly connected inside the limit frame (203).

3. The precision chain drive mechanism as described in claim 2, characterized in that: One side of the chain (204) is fixedly connected to the inner wall of the limiting frame (203), and the side of the chain (204) away from the limiting frame (203) is fixedly connected to the outer surface of the mounting plate (302).

4. The precision chain drive mechanism as described in claim 1, characterized in that: The linear motor actuator (301) is slidably mounted on the top of the slide rail (201), and a mounting plate (302) is fixedly mounted on the top of the linear motor actuator (301).

5. A precision chain drive mechanism as described in claim 4, characterized in that: A slider (303) is fixedly installed on the bottom of the mounting plate (302), and the slider (303) is slidably installed on the outer surface of the slide rail (201).

6. A precision chain drive mechanism as described in claim 5, characterized in that: A support rod (304) is fixedly installed on the top of the mounting plate (302), and an interferometer (305) is fixedly installed on the top of the support rod (304). The interferometer (305) is matched with the laser interferometer (103).

7. A precision compensation system, characterized in that: The precision compensation system includes a precision chain drive mechanism as described in any one of claims 1-6 and a host computer, wherein the host computer is communicatively connected to the precision chain drive mechanism.

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