Strip-shaped ceramic piece flatness detection device
The detection device, which combines a roller conveyor and a laser flatness measuring instrument, solves the problems of low detection efficiency and damage to long and narrow ceramic parts, and realizes automated and accurate flatness detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-03-06
AI Technical Summary
Existing methods for flatness inspection of long, rectangular ceramic parts are inefficient and prone to damaging the products. Manual inspection is labor-intensive, and the inspection instruments can easily scratch the products when moved.
The inspection device, which combines a roller conveyor and a laser flatness measuring instrument, achieves automated inspection through limit components and lifting plates, ensuring that the product remains horizontal during the inspection process and reducing friction and errors.
It enables efficient and automated flatness inspection of long and narrow ceramic parts, reducing manual labor intensity and product damage, and improving inspection accuracy and efficiency.
Smart Images

Figure CN223976638U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing devices, and in particular to a device for testing the flatness of elongated ceramic parts. Background Technology
[0002] Elongated ceramic parts are ceramic products with specific shapes and properties. They are typically made of high-performance ceramic materials such as alumina, zirconium oxide, silicon nitride, and silicon carbide. In modern industrial manufacturing, especially in precision engineering, the processing and quality inspection of elongated ceramic parts are crucial steps. Ceramic materials are widely used in various high-performance equipment and structures due to their excellent mechanical strength, hardness, high-temperature resistance, and chemical stability.
[0003] Currently, the flatness inspection of ceramic parts is mainly carried out manually. This method involves moving a level or dial indicator across the surface of the ceramic part for inspection. This method is inefficient, labor-intensive, and not suitable for mass production and inspection of ceramic parts. Furthermore, the movement of the inspection instrument on the surface of the ceramic part can easily scratch the ceramic part, causing defects. To address these issues, a solution is proposed below. Utility Model Content
[0004] The purpose of this invention is to provide a flatness detection device for elongated ceramic parts to solve the problems mentioned in the background art.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A flatness testing device for elongated ceramic parts includes a roller conveyor and a laser flatness measuring instrument. The laser flatness measuring instrument is installed on the roller conveyor. The roller conveyor is symmetrically equipped with limiting components for limiting and conveying the product. The roller conveyor also has two lifting plates, each corresponding to the laser flatness measuring instrument. A pushing cylinder is installed on the inner bottom wall of the roller conveyor. A support plate is fixed on the piston rod of the pushing cylinder. Two push rods are installed on the top of the support plate, and the side of the two push rods away from the support plate is fixedly connected to the bottom of the lifting plate.
[0007] Preferably, the limiting component includes a limiting plate one and a limiting plate two, both of which are slidably disposed on the roller conveyor. The limiting plate two is disposed at an inclination, and one end of the limiting plate two is fixedly connected to the limiting plate one. The roller conveyor is also provided with a driving component for pushing the limiting plate one and the limiting plate two.
[0008] Preferably, the drive assembly includes a second support plate, a screw, and a positioning rod. The second support plate is fixed to the top of the roller conveyor. The screw and the positioning rod are both slidably mounted on the second support plate. One end of the positioning rod passes through the second support plate and is fixedly connected to the side wall of the first limiting plate. The screw is threadedly engaged with the second support plate, and one end of the screw passes through the second support plate. The screw is rotatably connected to the side wall of the first limiting plate, and a rotating handwheel is fixed to the end of the screw away from the first limiting plate.
[0009] Preferably, several rollers are rotatably arranged on the opposite surfaces of the two limiting plates, and the ceramic parts are limited and transported through the rollers.
[0010] Preferably, a laser sensor is also installed on the inner wall of the laser flatness measuring instrument, and the height of the laser sensor corresponds to the thickness of the ceramic part.
[0011] Preferably, the roller conveyor includes several conveying rollers, a base, and a drive device. Each of the conveying rollers is rotatably mounted on the base, and each of the conveying rollers is rotated by the drive device. Two lifting plates are respectively installed between two adjacent conveying rollers. A limiting plate three is also installed on the inner wall of the base. One end of each of the two top rods passes through the limiting plate three and is fixedly connected to the lifting plate.
[0012] Preferably, the conveyor roller is also covered with a rubber pad.
[0013] Beneficial effects: When flatness testing of ceramic parts is required, the product to be tested can be placed on a roller conveyor, which will then transport the product to the laser flatness measuring instrument. The laser flatness measuring instrument will automatically test the product. During the transport, the positions of limit plate one and limit plate two are adjusted by the limit components, which limit the movement of the product and ensure that it can move forward according to the required requirements. The rollers on limit plate one reduce friction between limit plate one and the product, facilitating better transport. After the product enters the laser flatness measuring instrument, the push cylinder will be activated, indirectly lifting the product through two lifting plates. The roller conveyor will stop running at this time. The two lifting plates ensure that the product is in a flat state, reducing measurement errors. After the measurement is completed, the lifting plates will reset, and the roller conveyor will restart, thus achieving continuous transport of the product. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of an embodiment;
[0015] Figure 2 This is a schematic diagram illustrating the structure of a roller conveyor without a laser flatness measuring instrument, as shown in the example.
[0016] Figure 3 This is a schematic diagram illustrating the structure of the limiting component in an embodiment;
[0017] Figure 4 This is a schematic diagram illustrating the lifting structure of the lifting plate in an embodiment.
[0018] Figure 5 This is a schematic diagram illustrating the structure of the conveyor roller as an example.
[0019] Reference numerals in the attached drawings: 1. Roller conveyor; 2. Laser flatness measuring instrument; 3. Limiting assembly; 31. Limiting plate one; 32. Limiting plate two; 33. Drive assembly; 331. Support plate two; 332. Screw; 333. Positioning rod; 334. Rotating handwheel; 34. Roller; 4. Laser sensor; 5. Lifting plate; 6. Push cylinder; 7. Support plate one; 8. Top rod; 9. Conveyor roller; 10. Base; 11. Limiting plate three; 12. Rubber pad. Detailed Implementation
[0020] See Figures 1 to 5 As shown, a flatness testing device for elongated ceramic parts includes a roller conveyor 1 and a laser flatness measuring instrument 2. The laser flatness measuring instrument 2 is installed on the roller conveyor 1. When it is necessary to test the flatness of the ceramic parts, the product to be tested can be placed on the roller conveyor 1. The roller conveyor 1 includes several conveying rollers 9, a base 10, and a drive device. Each conveying roller 9 is rotatably mounted on the base 10. Each conveying roller 9 is rotated by the drive device. The product is placed on the conveying roller 9, and the product is moved and tested by the conveying roller 9. The drive device can be a chain drive. Since the roller conveyor 1 is a relatively conventional prior art, its structure will not be further disclosed here.
[0021] The roller conveyor 1 is symmetrically equipped with limiting components 3 for limiting the conveying of products. When the products are being conveyed, the moving position of the products is first limited by the limiting components 3 to ensure that the products can move forward according to the required requirements.
[0022] The limiting component 3 includes a first limiting plate 31 and a second limiting plate 32. Both the first limiting plate 31 and the second limiting plate 32 are slidably mounted on the roller conveyor 1. The second limiting plate 32 is inclined and one end is fixedly connected to the first limiting plate 31. The product is placed between the two limiting components 3. During the conveying process, the two limiting components 3 can be adjusted according to the width of the product to achieve limiting transmission of the product. The roller conveyor 1 is also equipped with a drive component 33 for pushing the first limiting plate 31 and the second limiting plate 32. The first limiting plate 31 and the second limiting plate 32 can move and adjust their distance through the drive component 33.
[0023] The drive assembly 33 includes a second support plate 331, a screw 332, and a positioning rod 333. The second support plate 331 is fixed to the top of the roller conveyor 1. Both the screw 332 and the positioning rod 333 are slidably mounted on the second support plate 331. One end of the positioning rod 333 passes through the second support plate 331 and is fixedly connected to the side wall of the first limiting plate 31. The screw 332 is threadedly engaged with the second support plate 331. One end of the screw 332 passes through the second support plate 331 and is rotatably connected to the side wall of the first limiting plate 31. The end of the screw 332 away from the first limiting plate 31 is also... A rotating handwheel 334 is fixed. When it is necessary to move the first limiting plate 31, the rotating handwheel 334 can be manually rotated first. The rotation of the handwheel 334 drives the screw 332 to rotate. The rotation of the screw 332 on the second supporting plate 331 can move the first limiting plate 31. The connection between the first limiting plate 31 and the positioning rod 333 realizes the rotation limit of the first limiting plate 31. The first limiting plate 31 achieves linear movement through the cooperation between the screw 332 and the positioning rod 333. The first limiting plate 31 can drive the second limiting plate 32 to move together.
[0024] Several rollers 34 are rotatably arranged on the opposite surfaces of the two limiting plates 31. The product is limited and conveyed by the rollers 34. During the process of moving through the roller conveyor 1, the product first enters between the two limiting plates 32. The two limiting plates 32 first position the product, and then the product is conveyed between the two limiting plates 31. The product will come into contact with the rollers 34. The setting of the rollers 34 can reduce the friction between the limiting plates 31 and the product, which facilitates better product conveying.
[0025] After passing through the limiting plate 31, the product enters the laser flatness measuring instrument 2 via the conveyor roller 9. The laser flatness measuring instrument 2 performs flatness testing on the product. Since the laser flatness measuring instrument 2 is existing technology, its structure will not be further disclosed here. It mainly works by emitting a high-precision laser beam to scan the surface of the object being measured. After the laser beam is reflected from the object's surface, it is received by a high-precision sensor. By calculating the deflection angle and variation amplitude of the reflected beam, the laser flatness measuring instrument 2 can determine the flatness of the object's surface.
[0026] The conveyor roller 9 is also wrapped with a rubber pad 12. Wrapping the conveyor roller 9 with a rubber pad 12 facilitates product transport and reduces friction between the surface of the conveyor roller 9 and the ceramic parts. The roller conveyor 1 also has two lifting plates 5, both corresponding to the laser flatness measuring instrument 2. Due to the rubber pad 12 on the conveyor roller 9 and the large gaps between each conveyor roller 9, the product cannot be guaranteed to be level when entering the laser flatness measuring instrument 2, often resulting in errors during inspection. A push cylinder 6 is installed on the inner bottom wall of the roller conveyor 1. A support plate 7 is fixed on the piston rod. Two push rods 8 are installed on the top of the support plate 7. The side of the two push rods 8 away from the support plate 7 is fixedly connected to the bottom of the lifting plate 5. In order to improve the accuracy of the detection, the lifting plate 5 is set between the conveyor rollers 9. When the product moves to the top of the two lifting plates 5, the push cylinder 6 will be activated. The piston rod of the push cylinder 6 will push the support plate 7 to rise and fall. The support plate 7 will drive the two push rods 8 at the top to rise and fall. Through the synchronous movement of the two push rods 8, the two lifting plates 5 are pushed to rise and fall, so that the lifting plates 5 can lift the product and ensure that the product is in a horizontal state for detection.
[0027] A laser sensor 4 is also installed on the inner wall of the laser flatness measuring instrument 2. The height of the laser sensor 4 corresponds to the thickness of the ceramic part. The side of the laser flatness measuring instrument 2 closest to the limiting component 3 is the inlet, and the other side is the outlet. The laser sensor 4 is located on the outlet side of the laser flatness measuring instrument. During normal use, the laser sensor 4 emits a laser beam. A reflection point is set at the opposite point of the laser sensor 4. The laser beam is reflected by the reflection point and then received by the sensor. When the product moves between the laser sensor 4 and the reflection point, the product will block the laser beam. Laser sensor 4 detects a change in the distance between the object and laser sensor 4. Laser sensor 4 is connected to a controller, which can stop the roller conveyor 1. The controller also controls the push cylinder 6 to start, thereby lifting the product through the lifting plate 5. After the product is inspected, the controller controls the push cylinder 6 to reset, and the roller conveyor 1 will start again. The inspected product will be transferred out of the laser flatness measuring instrument 2. Subsequent products to be inspected will enter the laser flatness measuring instrument 2 to perform the above operations, realizing continuous inspection of the products.
Claims
1. A device for detecting flatness of long ceramic pieces, comprising a roller conveyor (1) and a laser flatness measuring instrument (2), characterized in that, The laser flatness measuring instrument (2) is installed on the roller conveyor (1), the roller conveyor (1) is provided with a limiting assembly (3) for limiting conveying of products, and two lifting plates (5) are arranged in the roller conveyor (1), the two lifting plates (5) correspond to the laser flatness measuring instrument (2), a push cylinder (6) is installed on the inner bottom wall of the roller conveyor (1), a support plate (7) is fixed on the piston rod of the push cylinder (6), two top rods (8) are installed on the top of the support plate (7), and the two top rods (8) are fixedly connected with the bottom of the lifting plate (5) away from the support plate (7).
2. The apparatus according to claim 1, wherein The limiting assembly (3) comprises a limiting plate (31) and a limiting plate (32), the limiting plate (31) and the limiting plate (32) are slidably arranged on the roller conveyor (1), the limiting plate (32) is arranged in an inclined manner, one end of the limiting plate (32) is fixedly connected with the limiting plate (31), and a driving assembly (33) for pushing the limiting plate (31) and the limiting plate (32) is arranged on the roller conveyor (1).
3. The apparatus according to claim 2, wherein The driving assembly (33) comprises a support plate (331), a screw rod (332) and a positioning rod (333), the support plate (331) is fixed on the top of the roller conveyor (1), the screw rod (332) and the positioning rod (333) are slidably arranged on the support plate (331), one end of the positioning rod (333) penetrates the support plate (331), the positioning rod (333) is fixedly connected with the side wall of the limiting plate (31), the screw rod (332) is in threaded connection with the support plate (331), one end of the screw rod (332) penetrates the support plate (331), the screw rod (332) is rotatably connected with the side wall of the limiting plate (31), and a rotating handle (334) is further fixed to one end of the screw rod (332) away from the limiting plate (31).
4. The apparatus according to claim 2, wherein A plurality of rollers (34) are rotatably arranged on the opposite surfaces of the limiting plate (31), and the ceramic parts are limitedly conveyed through the rollers (34).
5. The apparatus for detecting flatness of a long strip ceramic member according to claim 1, wherein A laser sensor (4) is further installed on the inner side wall of the laser flatness measuring instrument (2), and the setting height of the laser sensor (4) corresponds to the thickness of the ceramic parts.
6. The apparatus according to claim 1, wherein The roller conveyor (1) comprises a plurality of conveying rollers (9), a base (10) and a driving device, each conveying roller (9) is rotatably arranged on the base (10), each conveying roller (9) is rotated through the driving device, the two lifting plates (5) are respectively arranged between two adjacent conveying rollers (9), and a limiting plate (11) is further installed on the inner wall of the base (10), one end of each top rod (8) penetrates the limiting plate (11) and is fixedly connected with the lifting plate (5).
7. The apparatus according to claim 6, wherein The outer part of the conveying roller (9) is wrapped with a rubber pad (12).