CN216247874U

CN216247874U - Fixing clamp for detecting defects of encoder grating

Info

Publication number: CN216247874U
Application number: CN202122702005.7U
Authority: CN
Inventors: 李长明; 张红臣; 倪国东
Original assignee: Changchun Guanghua University
Current assignee: Changchun Guanghua University
Priority date: 2021-11-06
Filing date: 2021-11-06
Publication date: 2022-04-08
Anticipated expiration: 2031-11-06

Abstract

The utility model discloses a fixing clamp for detecting defects of a grating of an encoder, which comprises a base, a support, a rotary driving device, a clamping and fixing device, a circular grating and a detection device, wherein the support is arranged on the base, the rotary driving device is rotatably arranged on the base, the clamping and fixing device is arranged on the rotary driving device, the circular grating is arranged on the clamping and fixing device, the detection device is arranged on the support, the circular grating is rapidly clamped and fixed through the clamping and fixing device, the rotary driving device drives the circular grating to rotate at a constant speed, and the detection device is matched to rapidly detect defects of the circular grating, so that the detection is convenient and rapid. The utility model belongs to the technical field of encoder production, and particularly relates to a fixing clamp for detecting defects of an encoder grating, which replaces manual detection and greatly improves the detection efficiency.

Description

Fixing clamp for detecting defects of encoder grating

Technical Field

The utility model belongs to the technical field of encoder production, and particularly relates to a fixing clamp for detecting defects of an encoder grating.

Background

In recent years, encoders are widely applied to various industries, the market demand is large, the proportion is increased, the technical level of encoder manufacturers is improved continuously, circular grating sheets are used as signal storage elements of the encoders, the encoders have the advantages of high measurement precision, good running state stability, wide usable range, small occupied space, light weight, low power, low cost and the like, the quality directly affects the use performance, and due to the limitation of grating sheet manufacturing processes, the defects of star points, chromium points, burrs, broken lines and the like are often generated on the surfaces of the encoders. At present, the detection mode of the grating surface defects mainly adopts manual detection, has high labor intensity, strong subjectivity and high cost, and is difficult to meet the detection requirements in the aspects of precision, efficiency, automation degree and the like.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a fixing clamp for detecting the defects of the grating of the encoder, which replaces manual detection and greatly improves the detection efficiency.

In order to realize the functions, the technical scheme adopted by the utility model is as follows: a fixing clamp for detecting defects of a grating of an encoder comprises a base, a support, a rotary driving device, a clamping and fixing device, a circular grating and a detection device, wherein the support is arranged on the base; the clamping and fixing device comprises a substrate, a cam, a driving lever, a second cylinder, a clamping plate, limiting columns, a limiting plate, a lug and a spring, wherein the substrate is arranged on a rotary driving device, the cam is rotated and arranged on the substrate, the driving lever is connected with the cam, the second cylinder is hinged to the driving lever, the clamping plate is slidably arranged on the substrate, the limiting columns are arranged on the clamping plate, the limiting plate is arranged between the limiting columns, the lug is fixedly connected to the limiting plate and is in lap joint with the cam, one end of the spring is arranged on the lug, the other end of the spring is arranged on the substrate, the driving lever is driven to rotate through the expansion of the second cylinder, the lug is pushed under the action of the spring, the lug drives the limiting plate to push the clamping plate, the clamping of the circular grating is fixed, and the clamping is efficient and convenient.

Further, the rotary driving device comprises a base, a gear ring, a worm and a motor, wherein the base is rotatably arranged on the base, the gear ring is arranged at the lower end of the base, the worm is arranged at the power output end of the motor and is meshed with the gear ring, and the gear ring is driven to rotate through the worm so as to drive the circular grating to rotate at a constant speed.

Further, the detection device comprises a first cylinder, a suspender and detection equipment, wherein the first cylinder is arranged on the support, the suspender is arranged at the output end of the first cylinder, and the detection equipment is arranged on the suspender and positioned on the side surface of the circular grating.

Preferably, the contact surface of the clamping plate and the circular grating is arc-surface-shaped.

Preferably, the motor is a servo motor.

The utility model adopts the structure to obtain the following beneficial effects: the fixing clamp for detecting the defects of the encoder grating, provided by the utility model, can be used for rapidly clamping and fixing the circular grating by arranging the clamping and fixing device, and can be used for comprehensively and rapidly detecting the defects of the circular grating by driving the circular grating to rotate at a constant speed through the rotation driving device and matching with the detection of the detection device, so that the detection efficiency is greatly improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a fixture for detecting defects of an encoder grating according to the present invention;

FIG. 2 is a top view of a holding fixture of the fixture for detecting defects of an encoder grating according to the present invention.

The device comprises a base 1, a base 2, a support 3, a rotation driving device 4, a clamping and fixing device 5, a circular grating 6, a detection device 7, a base plate 8, a cam 9, a deflector rod 10, a cylinder II, a cylinder 11, a clamping plate 12, a limiting column 13, a limiting plate 14, a bump 15, a spring 16, a base 17, a gear ring 18, a worm 19, a motor 20, a cylinder I, a cylinder 21, a suspender 22 and detection equipment.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-2, the fixing fixture for detecting defects of a grating of an encoder provided by the present invention includes a base 1, a bracket 2, a rotation driving device 3, a clamping fixing device 4, a circular grating 5 and a detecting device 6, wherein the bracket 2 is disposed on the base 1, the rotation driving device 3 is rotatably disposed on the base 1, the clamping fixing device 4 is disposed on the rotation driving device 3, the circular grating 5 is disposed on the clamping fixing device 4, and the detecting device 6 is disposed on the bracket 2; centre gripping fixing device 4 includes base plate 7, cam 8, driving lever 9, two 10 cylinders, splint 11, spacing post 12, limiting plate 13, lug 14 and spring 15, rotary drive device 3 is located to base plate 7, cam 8 rotates and locates on base plate 7, driving lever 9 is connected with cam 8, two 10 articulations of cylinder are located on driving lever 9, splint 11 slides and locates on base plate 7, splint 11 personally submits the arc surface form setting with the contact surface of circle grating 5, spacing post 12 is located on splint 11, limiting plate 13 is located between spacing post 12, lug 14 rigid coupling is located on limiting plate 13 and is lapped with cam 8, on lug 14 and the other end was located on base plate 7 are located to the one end of spring 15.

The rotary driving device 3 comprises a base 16, a gear ring 17, a worm 18 and a motor 19, wherein the base 16 is rotatably arranged on the base 1, the gear ring 17 is arranged at the lower end of the base 16, the motor 19 is a servo motor 19, and the worm 18 is arranged at the power output end of the motor 19 and is meshed with the gear ring 17.

The detection device 6 comprises a first cylinder 20, a suspender 21 and detection equipment 22, wherein the first cylinder 20 is arranged on the support 2, the suspender 21 is arranged at the output end of the first cylinder 20, and the detection equipment 22 is arranged on the suspender 21 and is positioned on the side surface of the circular grating 5.

During the specific use, circle grating 5 places on base plate 7, it is rotatory that two 10 driving levers 9 of start cylinder drive cam 8, lug 14 is under the promotion of spring 15, it removes to drive limiting plate 13, because spacing post 12's effect, splint 11 can be along with lug 14 synchronous motion, can carry out quick centre gripping fixed to circle grating 5 through splint 11, starter motor 19, worm 18 is rotatory, meshing ring gear 17 is rotatory, base 16 is driven rotatoryly, can realize the uniform velocity of circle grating 5 and rotate, check out test set 22 has passed through the regulation of a cylinder 20 this moment, be in the side of circle grating 5, thereby can carry out quick defect detection to circle grating 5 fast, the efficiency of detection has been improved greatly.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides an encoder grating flaw detects uses mounting fixture which characterized in that: the device comprises a base, a support, a rotary driving device, a clamping and fixing device, a circular grating and a detection device, wherein the support is arranged on the base; the clamping and fixing device comprises a substrate, a cam, a driving lever, a second cylinder, a clamping plate, a limiting plate, a lug and a spring, wherein the substrate is arranged on the rotary driving device, the cam is rotated and arranged on the substrate, the driving lever is connected with the cam, the second cylinder is hinged on the driving lever, the clamping plate is arranged on the substrate in a sliding manner, the limiting plate is arranged on the clamping plate, the limiting plate is arranged between the limiting plates, the lug is fixedly connected to the limiting plate and is in lap joint with the cam, and one end of the spring is arranged on the lug and the other end of the spring is arranged on the substrate.

2. The fixture of claim 1, wherein the fixture comprises: the rotary driving device comprises a base, a gear ring, a worm and a motor, wherein the base is rotatably arranged on the base, the gear ring is arranged at the lower end of the base, and the worm is arranged at the power output end of the motor and is meshed with the gear ring.

3. The fixture of claim 2, wherein: the detection device comprises a first cylinder, a suspender and detection equipment, wherein the first cylinder is arranged on the support, the suspender is arranged at the output end of the first cylinder, and the detection equipment is arranged on the suspender and positioned on the side surface of the circular grating.

4. The fixture of claim 3, wherein the fixture comprises: the contact surface of the clamping plate and the circular grating is arranged in an arc surface shape.

5. The fixture of claim 4, wherein the fixture comprises: the motor is a servo motor.