Special three-axis polishing positioner

By introducing a limit groove and dust cover design into the three-axis grinding positioner, dust and water mist are prevented from entering the transmission structure. Combined with a pneumatic brake and tempered glass baffle, the dust pollution problem is solved, the equipment life and safety are improved, and the equipment can meet the grinding needs of complex curved surfaces.

CN224115827UActive Publication Date: 2026-04-14HENAN BOER ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing three-axis grinding robot systems generate high concentrations of metal dust and water mist during the grinding process, which can penetrate the equipment's interior, causing problems such as short circuits on circuit boards and lubricant contamination, thus reducing the equipment's lifespan and safety.

Method used

A three-axis grinding positioner was designed, featuring a dust cover design with a nested limit groove and dust cover to prevent dust from entering the rotating structure of the drive wheel; at the same time, the dust cover design prevents dust from entering the transmission structure of the drive wheel; and also prevents dust from entering the meshing area of ​​the drive gear and gear ring. Combined with a pneumatic brake, it achieves rapid braking, and uses a hollow rotary platform and tempered glass baffle for protection.

Benefits of technology

It effectively blocks dust and water mist, extends equipment life, improves operational safety and processing flexibility, and enhances equipment stability and visual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a positioner special for three-axis grinding, which belongs to the technical field of material grinding and comprises a base, a positioning mechanism, a positioning mechanism and a positioning mechanism. The transmission wheel is rotationally arranged on the upper surface of the base, a rotating disc is fixedly arranged on the transmission wheel, and the rotating disc indirectly provides support for the cross beam; the driving gear is rotationally arranged on the base, and a gear ring corresponding to the driving gear is further arranged on the outer surface of the transmission wheel; the limiting groove is annularly formed in the bottom face of the rotating disc and located on the same axis with the rotating disc, and the inner diameter of the limiting groove is larger than the outer diameter of the gear ring; the dustproof cover is of a hollow tubular structure and is fixed to the upper surface of the base, and the top of the dustproof cover is located in the limiting groove; the dustproof box extends from the side wall of the dustproof cover, is of a box structure, is fixed to the upper surface of the base and is located outside the driving gear; the driving wheel and the rotating structure on the base can be protected through the dustproof cover and the dustproof box, so that the service life of the positioner is effectively prolonged, and the maintenance frequency of the positioner is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of material grinding equipment, specifically to a three-axis grinding positioner. Background Technology

[0002] In the field of industrial automation, with the rapid development of robotics technology, grinding and polishing operations are gradually transforming from manual operation to automated production. Currently, automated grinding systems based on three-axis grinding robots are widely used in surface treatment processes in industries such as automotive manufacturing, aerospace, and precision casting, significantly improving processing efficiency, process consistency, and operational safety. This system typically involves a three-axis grinding robot working in conjunction with a positioner. The positioner adjusts the spatial posture of the workpiece, and the robot's end effector completes the fine grinding of complex curved surfaces.

[0003] While the aforementioned equipment can be used for grinding various objects, the grinding process generates high concentrations of metal dust and water mist, posing a serious threat to the robot's hardware. Dust particles can penetrate the control system, sensors, and transmission components through equipment gaps, causing problems such as short circuits on circuit boards, poor heat dissipation, and lubricant contamination, thus reducing the equipment's lifespan. For example, in metal processing workshops, dust can cause wear on CNC machine tool guideways, tool magazine jamming, and even lead to accuracy deviations in optical inspection instruments. Utility Model Content

[0004] In view of this, the present invention provides a three-axis grinding positioner, which can be used.

[0005] To solve the above-mentioned technical problems, this utility model provides a three-axis grinding positioner, including a base, which provides support for the entire positioner.

[0006] The transmission wheel is rotatably mounted on the upper surface of the base. The transmission wheel can rotate vertically on the upper surface of the base. A rotating disk is fixed on the transmission wheel. The transmission wheel can drive the rotating disk to rotate. The rotating disk indirectly provides support for the crossbeam. The rotating disk can drive the crossbeam to rotate. The crossbeam is equipped with two support disks and partitions for driving the workpiece to rotate.

[0007] The drive gear is rotatably mounted on the upper surface of the base and connected to the motor. Correspondingly, the drive gear also has a gear ring on the outer surface of the transmission wheel. The drive gear and the gear ring of the transmission wheel mesh with each other, and the drive gear can indirectly drive the transmission wheel to rotate.

[0008] It also includes a limiting groove, which is circularly formed on the bottom surface of the rotating disk and located on the same axis as the rotating disk. The inner diameter of the limiting groove is larger than the outer diameter of the gear ring.

[0009] The dust cover is a hollow tubular structure fixed to the upper surface of the base, and the top of the dust cover is located in the limiting groove. The dust cover and the limiting groove can prevent dust from entering the rotating structure of the transmission wheel.

[0010] The dustproof box extends from the side wall of the dustproof cover and is fixed to the upper surface of the base in a box-like structure. The dustproof box is located outside the drive gear, and the dustproof direction can prevent dust from entering the meshing structure between the drive gear and the gear ring.

[0011] The dust cover and dust box are detachably fixed to the base, which facilitates the maintenance of the dustproof structure or the rotating structure of the transmission wheel.

[0012] The dust cover and the bottom of the dust box are equipped with a connecting plate, which is fixed to the upper surface of the base by bolts, so that the dustproof structure can be quickly disassembled.

[0013] The base is also equipped with a limiting component for braking the rotating disk, which can brake the rotating disk.

[0014] The limiting component is a pneumatic brake.

[0015] A hollow rotating platform is provided inside the crossbeam corresponding to the support plate. The position of the material on the support plate can be indirectly adjusted through the hollow rotating platform, and dust can also be prevented from entering the rotating structure of the support plate.

[0016] The baffle is made of tempered glass, through which the processing of materials on the two support plates can be seen.

[0017] Both sides of the baffle are equipped with mesh panels for protecting the glass, which can protect the tempered glass.

[0018] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0019] 1. High-efficiency dust protection and improved equipment lifespan: The ring-shaped nested design of the limiting groove and dust cover effectively prevents high-concentration metal dust and water mist generated during grinding from entering the rotating structure of the transmission wheel; at the same time, the dust box provides closed protection for the meshing area of ​​the drive gear and gear ring, preventing dust from entering key transmission components and reducing problems such as short circuits on circuit boards and lubricant contamination caused by dust.

[0020] 2. Precise braking and rapid response enhance operational safety: A pneumatic brake is installed on the base, which can quickly brake the rotating disk, ensuring that the workpiece stops quickly in emergency situations or after processing, avoiding safety hazards caused by inertial motion.

[0021] 3. Optimized hollow rotary platform to improve processing flexibility: A hollow rotary platform is set inside the crossbeam to support the support plate to drive the workpiece to rotate in multiple degrees of freedom, which can meet the needs of grinding complex curved surfaces. At the same time, its closed structure prevents dust from entering and improves the stability of the equipment.

[0022] 4. Visualization and protection design to improve human-machine interaction: Tempered glass is used as a baffle to ensure that operators can clearly observe the processing process, while the mesh panels on both sides enhance the glass protection and avoid damage from flying debris.

[0023] 5. Enhanced overall performance and adaptability to harsh working conditions: The overall design is tailored to the high dust and high humidity environment of metal processing workshops, effectively protecting sensitive components such as transmission systems, control systems, and sensors, and extending the service life of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the three-axis grinding positioner of this utility model;

[0025] Figure 2 This is a structural schematic diagram of a cross-sectional view of the present invention;

[0026] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A;

[0027] Figure 4 This utility model Figure 2 A schematic diagram of the structure at point B.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100. Base;

[0030] 200. Drive wheel; 201. Rotary disc; 202. Gear ring; 203. Limiting groove; 204. Hollow rotary platform;

[0031] 300. Crossbeam; 301. Support plate;

[0032] 400. Drive gear;

[0033] 500. Dust cover; 501. Dust box; 502. Connecting plate;

[0034] 600. Pneumatic brake;

[0035] 700, tempered glass; 701, wire mesh. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0037] This embodiment provides a three-axis grinding positioner, such as... Figure 1 , 2 As shown: It includes a base 100, on which a transmission wheel 200 is vertically mounted via a bearing. The transmission wheel 200 can indirectly provide support for the crossbeam 300 and drive the two support discs 301 to rotate through the crossbeam 300.

[0038] A drive gear 400 is rotatably mounted above the base 100. The drive gear 400 is connected to the motor, and a gear ring 202 is provided on the outer ring of the transmission wheel 200 corresponding to the teeth of the drive gear 400. That is, the transmission wheel 200 and the gear ring 202 can rotate simultaneously, and the teeth of the drive gear 400 and the gear ring 202 mesh with each other. That is, when the drive gear 400 rotates, it can drive the transmission wheel 200 to rotate on the base 100, thereby enabling the crossbeam 300 to drive the two support disks 301 to rotate.

[0039] A rotating disk 201 is fixed above the transmission wheel 200. The rotating disk 201 and the transmission wheel 200 are located on the same axis, and the diameter of the rotating disk 201 is larger than the diameter of the gear ring 202 on the transmission wheel 200. A circular limiting groove 203 is opened at the bottom of the rotating disk 201. The limiting groove 203 is also located on the same axis as the rotating disk 201, and the vertical drop of the limiting groove 203 is larger than the diameter of the gear ring 202. Correspondingly, a dust cover 500 is fixed on the upper surface of the base 100. The dust cover 500 has an annular cylindrical structure, and the dust cover 500... The top is located within the limiting groove 203, meaning that during the rotation of the transmission wheel 200, the dust cover 500 can prevent dust from entering the rotating structure of the transmission wheel 200. Furthermore, a dust box 501 extends from the side wall of the dust cover 500. The dust box 501 has a box-like structure and is located outside the drive gear 400. Thus, the dust cover 500 and the dust box 501 can cover the gear ring 202 and the drive gear 400, thereby preventing dust from entering the transmission structure and affecting the rotation of the transmission wheel 200.

[0040] Furthermore, the dust cover 500 and the dust box 501 are detachably fixed to the base 100, meaning that when the positioner needs maintenance, removing the dust cover 500 and the dust box 501 will not affect the disassembly or cleaning of the gear ring 202 or the drive gear 400.

[0041] Specifically, the dust cover 500 and the dust box 501 are equipped with a connecting plate 502 at their bottom. The connecting plate 502 is fixed to the upper surface of the base 100 by bolts, meaning that the connecting plate 502 can be quickly removed using bolts. This allows the dust cover 500 and the dust box 501 to be disassembled. Alternatively, the dust cover 500 and the dust box 501 can also be quickly attached to and detached from the base 100 using other structures, such as snap-fit ​​mechanisms.

[0042] The base 100 is also provided with a limiting component for braking the rotating disk 201, such as... Figure 1 , 2 As shown: The limiting component can be set as a pneumatic brake 600. That is, when the positioner is processing a large workpiece, if it is necessary to stop the rotation of the large workpiece, the workpiece will continue to rotate slowly under the influence of gravity and inertia. It will take a long time or manual intervention to stop it. By using the pneumatic brake 600 to abut against the upper and lower surfaces of the rotating disk 201, the rotation of the rotating disk 201 can be effectively slowed down, thereby indirectly braking the workpiece. (The limiting component can be set as a DBF10 caliper disc small pneumatic brake 600.)

[0043] A crossbeam 300 is indirectly provided above the rotating disk 201. The midpoint of the crossbeam 300 coincides with the axis of the rotating disk 201. The crossbeam 300 has two support disks 301, which are used to place workpieces. Corresponding to the support disk 301, a hollow rotary platform 204 is also provided in the crossbeam 300 to support the support disk 301 to drive the workpiece to rotate in multiple degrees of freedom, adapting to the needs of grinding complex curved surfaces. At the same time, its closed structure prevents dust from entering.

[0044] The crossbeam 300 is also equipped with a baffle made of tempered glass 700. This allows workers at one end of the crossbeam 300 to see the processing of the workpiece on the other end. The baffle is also made of other transparent materials.

[0045] Both sides of the baffle are equipped with mesh plates 701 for protecting the glass. During the grinding process of materials, some splashes will be generated. The mesh plates 701 can prevent larger splashes from hitting the baffle and causing damage.

[0046] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A three-axis grinding positioner, comprising: The base (100) provides support for the entire positioner; The transmission wheel (200) is rotatably mounted on the upper surface of the base (100), and a rotating disk (201) is fixedly mounted on it. The rotating disk (201) indirectly provides support for the crossbeam (300). The crossbeam (300) is provided with two support disks (301) for driving the workpiece to rotate and a partition plate. A drive gear (400) is rotatably mounted on the upper surface of the base (100) and connected to the motor. Corresponding to the drive gear (400), a gear ring (202) is also provided on the outer surface of the transmission wheel (200). The drive gear (400) and the gear ring (202) of the transmission wheel (200) mesh with each other. Its features are: Also includes; A limiting groove (203) is formed in a circular shape on the bottom surface of the rotating disk (201) and is located on the same axis as the rotating disk (201). The inner diameter of the limiting groove (203) is larger than the outer diameter of the gear ring (202). The dust cover (500) is a hollow tubular structure fixed on the upper surface of the base (100), and the top of the dust cover (500) is located in the limiting groove (203); A dust box (501) extends from the side wall of the dust cover (500) and is fixed to the upper surface of the base (100) in a box-like structure. The dust box (501) is located outside the drive gear (400).

2. The three-axis grinding positioner as described in claim 1, characterized in that: The dust cover (500) and dust box (501) are detachably fixed on the base (100).

3. The three-axis grinding positioner as described in claim 2, characterized in that: The dust cover (500) and the dust box (501) are provided with a connecting plate (502) at the bottom, and the connecting plate (502) is fixed to the upper surface of the base (100) by bolts.

4. The three-axis grinding positioner as described in claim 1, characterized in that: The base (100) is also provided with a limiting component for braking the rotating disk.

5. The three-axis grinding positioner as described in claim 4, characterized in that: The limiting component is a pneumatic brake (600).

6. The three-axis grinding positioner as described in claim 1, characterized in that: A hollow rotary platform (204) is provided inside the crossbeam (300) corresponding to the support plate (301).

7. The three-axis grinding positioner as described in claim 1, characterized in that: The partition is made of tempered glass (700).

8. The three-axis grinding positioner as described in claim 7, characterized in that: Both sides of the partition are provided with mesh panels (701) for protecting the glass.