Polishing clamp and polishing device

Abstract

The embodiment of the utility model provides a polishing clamp and a polishing device, the polishing clamp comprises a first clamping assembly and a second clamping assembly, the first clamping assembly is provided with a first clamping area, and the second clamping assembly is provided with a second clamping area; the first clamping assembly comprises a first clamping piece used for clamping the static scroll plate, a first supporting piece used for supporting the static scroll plate and at least two first positioning pieces oppositely arranged in a first clamping area. The second clamping assembly comprises a second clamping piece used for clamping the movable scroll plate, a second supporting piece used for supporting the movable scroll plate and at least two second positioning pieces, at least one second positioning piece is arranged in the center of the second clamping area, and at least the other second positioning piece is arranged on the peripheral edge of the second clamping area. According to the embodiment, the two clamping assemblies are arranged, the movable scroll plate and the static scroll plate can be clamped at the same time, accurate positioning is achieved through the two positioning pieces and the supporting piece, stable clamping can be achieved through the clamping pieces, and the polishing precision is not prone to being affected.

Description

Technical Field

[0001] This utility model relates to the field of vortex disk polishing technology, and in particular to a polishing fixture and polishing device. Background Technology

[0002] In the context of advocating energy conservation and emission reduction, both the moving and stationary scroll plates in scroll compressors require phosphating treatment to improve compressor performance and reduce power consumption. After phosphating, both the moving and stationary scroll plates need polishing, thus requiring specialized polishing fixtures. Existing polishing fixtures typically fall into two categories:

[0003] The first type is a three-jaw chuck polishing fixture. Three jaws evenly clamp the outer circumference of the scroll plate, fixing it to the main shaft of the polishing machine. The main shaft drives the scroll plate to rotate, and the polishing tool polishes its surface. However, this type of polishing fixture is suitable for scroll plates with simple shapes. For scroll plates with complex shapes, especially moving and stationary scroll plates with scroll teeth, the three-jaw chuck can only provide circumferential fixation and cannot effectively position and support the scroll teeth and other parts. This can easily cause wobbling during polishing, affecting polishing accuracy.

[0004] The second type is a hydraulic clamping polishing fixture, which uses the pressure generated by a hydraulic cylinder to clamp the scroll plate through clamping elements on the fixture, ensuring the stability of the scroll plate during the polishing process. However, the hydraulic system of this polishing fixture is more complex, requiring a dedicated hydraulic station, which increases equipment cost and floor space. Furthermore, the hydraulic system has high maintenance requirements; leaks or other malfunctions can affect the clamping effect of the fixture and even cause the polishing process to be interrupted.

[0005] In summary, the clamping and fixing effects of existing polishing fixtures are unstable, which can easily affect the polishing accuracy of the scroll plate. Utility Model Content

[0006] This utility model provides a polishing fixture and polishing device, aiming to solve the problem that the clamping and fixing effects of existing polishing fixtures are unstable and easily affect the polishing accuracy of the scroll plate.

[0007] This utility model provides a polishing fixture for holding a scroll disk, the scroll disk including a moving scroll disk and a stationary scroll disk, the polishing fixture including a first clamping component and a second clamping component, the first clamping component having a first clamping area, and the second clamping component having a second clamping area;

[0008] The first clamping assembly includes a first clamping member for clamping the stationary scroll plate, a first support member for supporting the stationary scroll plate, and at least two first positioning members disposed opposite to each other in the first clamping area. The second clamping assembly includes a second clamping member for clamping the moving scroll plate, a second support member for supporting the moving scroll plate, and at least two second positioning members. At least one second positioning member is disposed at the center of the second clamping area, and at least another second positioning member is disposed at the periphery of the second clamping area.

[0009] Specifically, the first clamping member includes a first clamping member and a second clamping member disposed on both sides of the first clamping area, and the first clamping member and the second clamping member are used to clamp the outer edge of the static vortex disk.

[0010] Specifically, the first clamping component includes a first cylinder and a first clamping block. The first clamping block is connected to one end of the first cylinder, and the first cylinder can drive the first clamping block to approach one side of the outer edge of the stationary vortex disk. The second clamping component includes a second cylinder and a second clamping block. The second clamping block is connected to one end of the second cylinder, and the second cylinder can drive the second clamping block to approach the other side of the outer edge of the stationary vortex disk.

[0011] Specifically, the first clamping assembly further includes a first pad and a first positioning base. At least two first pads are provided and are respectively provided below the first clamping member and the second clamping member. The first positioning base is provided in the first clamping area. The first support member and the first positioning member are both provided on the first positioning base.

[0012] Specifically, the second clamping member includes a first clamping member and a second clamping member disposed on both sides of the second clamping area. The first clamping member and the second clamping member are used to clamp the substrate surface of the moving scroll disk.

[0013] Specifically, the first clamping member includes a third cylinder and a first clamping part. One end of the first clamping part is connected to the top of the third cylinder, and the other end of the first clamping part extends toward the second clamping area. The third cylinder can drive the other end of the first clamping part to approach the base plate surface of the moving scroll plate. The second clamping member includes a fourth cylinder and a second clamping part. One end of the second clamping part is connected to the top of the fourth cylinder, and the other end of the second clamping part extends toward the second clamping area. The fourth cylinder can drive the other end of the second clamping part to approach the base plate surface of the moving scroll plate.

[0014] Specifically, both the first and second pressing parts include a pressing arm and a pressing head. One end of the pressing arm is connected to the top of the corresponding cylinder, and the other end of the pressing arm is connected to the pressing head.

[0015] Specifically, the second clamping assembly further includes a second pad and a second positioning base. At least two second pads are provided and are respectively provided below the first clamping member and the second clamping member. The second positioning base is provided in the second clamping area. The second support member and the second positioning member are both provided on the second positioning base.

[0016] Specifically, multiple first support members are provided and arranged in a circular array on the first clamping area, and multiple second support members are provided and arranged in a circular array on the second clamping area.

[0017] Specifically, at least one of the two first positioning elements is a cylindrical positioning element, and the other is a non-cylindrical positioning element.

[0018] This utility model embodiment also provides a polishing device, including the polishing fixture described above and a brush for polishing a vortex disk.

[0019] Specifically, the brush tool includes a first brush tool for polishing the bottom surface of the rotating vortex disk and the stationary vortex disk, and a second brush tool for polishing the top surface of the rotating vortex disk. The first brush tool includes a first brush handle and a first brush head connected in sequence, and the first brush head is provided with a first brush bristle. The second brush tool includes a second brush handle and a second brush head connected in sequence, and the second brush head is provided with a second brush bristle.

[0020] Specifically, the brush tool also includes a third brush tool for polishing the bottom surface and sidewalls of the spiral disc. The third brush tool includes a third brush handle and a third brush head connected in sequence. The front end of the third brush head is provided with a third brush bristle for polishing the bottom surface of the spiral disc, and a side brush bristle for polishing the sidewalls is provided between the third brush handle and the third brush bristle.

[0021] This utility model provides a polishing fixture and polishing device. The polishing fixture includes a first clamping assembly and a second clamping assembly. The first clamping assembly has a first clamping area, and the second clamping assembly has a second clamping area. The first clamping assembly includes a first clamping member for clamping a stationary scroll plate, a first supporting member for supporting the stationary scroll plate, and at least two first positioning members disposed opposite to each other in the first clamping area. The second clamping assembly includes a second clamping member for clamping a moving scroll plate, a second supporting member for supporting the moving scroll plate, and at least two second positioning members. At least one second positioning member is disposed at the center of the second clamping area, and at least another second positioning member is disposed around the periphery of the second clamping area. This embodiment, by providing two clamping assemblies, can simultaneously clamp both the moving and stationary scroll plates. Precise positioning is achieved through the two positioning members and the supporting member, enabling stable clamping and minimizing impact on polishing accuracy. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a polishing fixture provided in an embodiment of the present utility model;

[0024] Figure 2 A schematic diagram of a polishing fixture holding a scroll plate is provided for an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the first clamping component;

[0026] Figure 4 Schematic diagram of the structure for clamping the stationary scroll disk with the first clamping assembly Figure 1 ;

[0027] Figure 5 Schematic diagram of the structure for clamping the stationary scroll disk with the first clamping assembly Figure 2 ;

[0028] Figure 6 This is a schematic diagram of the second clamping component;

[0029] Figure 7 A schematic diagram of the structure of the second clamping component clamping the moving scroll disk;

[0030] Figure 8 This is a schematic diagram of the structure of the second positioning component;

[0031] Figure 9 This is a structural schematic diagram of the first positioning component;

[0032] Figure 10 This is a schematic diagram of the structure of the first brush tool;

[0033] Figure 11 This is a schematic diagram of the second brush tool.

[0034] Figure 12 This is a schematic diagram of the third brush tool;

[0035] Figure 13 This is a schematic diagram showing the positions of the third brush and the air nozzle;

[0036] Figure 14 This is a schematic diagram of the brush drive.

[0037] Explanation of the markings in the image:

[0038] 1. First clamping assembly; 11. First clamping area; 12. First clamping member; 121. First clamping member; 1211. First cylinder; 1212. First clamping block; 122. Second clamping member; 1221. Second cylinder; 1222. Second clamping block; 13. First support member; 14. First positioning member; 15. First pad; 16. First positioning base;

[0039] 2. Second clamping assembly; 21. Second clamping area; 22. Second clamping member; 221. First clamping member; 2211. Third cylinder; 2212. First clamping part; 22121. First clamping arm; 22122. First clamping head; 222. Second clamping member; 2221. Fourth cylinder; 2222. Second clamping part; 22221. Second clamping arm; 22222. Second clamping head; 23. Second support member; 24. Second positioning member; 25. Second pad; 26. Second positioning base;

[0040] 3. Static vortex disk;

[0041] 4. Moving vortex disk;

[0042] 5. Fixture base plate;

[0043] 6. Brush tool; 61. First brush tool; 611. First brush handle; 612. First brush head; 613. First bristles; 62. Second brush tool; 621. Second brush handle; 622. Second brush head; 623. Second bristles; 63. Third brush tool; 631. Third brush handle; 632. Third brush head; 633. Third bristles; 634. Side bristles;

[0044] 7. Air valve. Detailed Implementation

[0045] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0046] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0047] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0048] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0049] Please see Figure 1-4 This utility model provides a polishing fixture for clamping a scroll disk, which includes a moving scroll disk 4 and a stationary scroll disk 3. The polishing fixture includes a first clamping component 1 and a second clamping component 2. The first clamping component 1 has a first clamping area 11, and the second clamping component 2 has a second clamping area 21. The first clamping component 1 includes a first clamping member 12 for clamping the stationary scroll disk 3, a first supporting member 13 for supporting the stationary scroll disk 3, and at least two first positioning members 14 disposed opposite to each other in the first clamping area 11. The second clamping component 2 includes a second clamping member 22 for clamping the moving scroll disk 4, a second supporting member 23 for supporting the moving scroll disk 4, and at least two second positioning members 24. At least one second positioning member 24 is disposed at the center of the second clamping area 21, and at least another second positioning member 24 is disposed at the periphery of the second clamping area 21.

[0050] In this embodiment, the polishing fixture is provided with two clamping components, namely a first clamping component 1 and a second clamping component 2. The first clamping component 1 has a first clamping area 11 for placing the stationary scroll plate 3, and the second clamping component 2 has a second clamping area 21 for placing the moving scroll plate 4. The first clamping component 1 and the second clamping component 2 utilize positioning members and support members to achieve precise positioning, and utilize clamping members to achieve reliable clamping. The entire polishing fixture operates as follows: the stationary scroll plate 3 is placed in the first clamping area 11, the first support member 13 supports the stationary scroll plate 3, and the two first positioning members 14 are arranged opposite each other to achieve angular positioning of the stationary scroll plate 3, thereby restricting the rotation of the stationary scroll plate 3. The first clamping member 12 clamps the stationary scroll plate 3. Similarly, the moving scroll plate 4 is placed in the second clamping area 21, the second support member 23 supports the moving scroll plate 4, and of the two second positioning members 24, one second positioning member 24 is set at the center of the second clamping area 21 to achieve center limiting of the moving scroll plate 4, and the other positioning member is set at the periphery of the second clamping area 21 to achieve peripheral limiting of the moving scroll plate 4. The two second positioning members 24 work together to restrict the rotation of the moving scroll plate 4, and the second clamping member 22 clamps the surface of the moving scroll plate 4.

[0051] In the specific implementation process, the second positioning member 24, located at the center of the second clamping area 21, is embedded in the bearing of the moving scroll disk 4. Therefore, the top of the second positioning member 24 is set as a larger columnar body, and the bottom is set as a smaller columnar body, ultimately forming as shown in the figure. Figure 8 As shown in (b), the second positioning member 24, located around the second clamping area 21, is embedded in the base plate surface of the moving scroll disk 4. The top of the second positioning member 24 is a smaller columnar body, and the bottom is a larger columnar body, with the height of the bottom columnar body being greater than the height of the top columnar body. The two columnar bodies are connected by a tapered edge, ultimately forming a shape as shown in (b). Figure 8 The shape shown in (a).

[0052] This embodiment, by setting two clamping components, can simultaneously clamp the moving scroll plate 4 and the stationary scroll plate 3. Furthermore, the positioning and supporting components in the two clamping components achieve precise positioning, enabling the clamping components to achieve stable clamping. In specific implementation, the first positioning component 14 and the second positioning component 24 can be positioning pins, and the supporting component can be a supporting column or positioning block with a certain degree of hardness and wear resistance.

[0053] Specifically, such as Figure 3 As shown, the first clamping member 12 includes a first clamping member 121 and a second clamping member 122 disposed on both sides of the first clamping area 11. The first clamping member 121 and the second clamping member 122 are used to clamp the outer edge of the stationary vortex disk 3.

[0054] In this embodiment, the stationary vortex disk 3 is clamped from the outer edge by the first clamping member 121 and the second clamping member 122 on both sides, achieving stable fixation through clamping force. The working process is as follows: after the stationary vortex disk 3 is placed in a suitable position in the first clamping area 11, the first support member 13 supports the stationary vortex disk 3, and the first positioning member 14 positions the stationary vortex disk 3 and restricts its rotation. At this time, the first clamping member 121 and the second clamping member 122 act simultaneously, applying clamping force to the outer edge of the stationary vortex disk 3. In this embodiment, the stationary vortex disk 3 is stably clamped from the outer edge by the first clamping member 121 and the second clamping member 122, preventing displacement during the polishing process.

[0055] Specifically, such as Figure 3-5 As shown, the first clamping member 121 includes a first cylinder 1211 and a first clamping block 1212. The first clamping block 1212 is connected to one end of the first cylinder 1211, and the first cylinder 1211 can drive the first clamping block 1212 to approach the side of the outer edge of the stationary vortex disk 3. The second clamping member 122 includes a second cylinder 1221 and a second clamping block 1222. The second clamping block 1222 is connected to one end of the second cylinder 1221, and the second cylinder 1221 can drive the second clamping block 1222 to approach the other side of the outer edge of the stationary vortex disk 3.

[0056] In this embodiment, the two cylinders and two clamping blocks of the first clamping member 12 are arranged on the same axis, and the two clamping blocks are located on both sides of the first clamping area 11. The two cylinders drive the two clamping blocks to move back and forth in the horizontal direction, so that the clamping blocks move closer to or away from the outer edge of the stationary vortex disk 3. When they move closer, the clamping blocks on both sides simultaneously perform a clamping action. The entire working process is as follows: after the stationary vortex disk 3 is in place, the first cylinder 1211 and the second cylinder 1221 respectively drive the first clamping block 1212 and the second clamping block 1222 to move towards the outer edge of the stationary vortex disk 3 until they are clamped. This embodiment, through cylinder drive, can precisely control the magnitude of the clamping force and the clamping speed, ensuring the stability and reliability of the clamping. Among them, the first cylinder 1211 and the second cylinder 1221 are horizontal cylinders.

[0057] To achieve a more precise clamping action, one of the two clamping blocks is a V-shaped clamping block with a V-shaped opening corresponding to the outer edge of the stationary scroll 3, while the other clamping block is a flat clamping block. The V-shaped opening of the first clamping block 1212 can closely fit the outer contour of the stationary scroll 3. Utilizing the centering characteristic of the V-shaped opening, the stationary scroll 3 can be quickly and accurately positioned, ensuring its accurate position within the first clamping area 11 and laying a good foundation for subsequent polishing. The flat clamping block can apply uniform planar pressure to the outer edge of the stationary scroll 3 from the other side, cooperating with the V-shaped clamping block to form a stable clamping force, firmly fixing the stationary scroll 3 within the first clamping area 11.

[0058] In the specific implementation process, anti-slip rubber pads can be set on the contact surfaces of the first clamping block 1212 and the second clamping block 1222 with the stationary vortex disk 3 to increase friction.

[0059] Specifically, such as Figure 3-5 As shown, the first clamping assembly 1 also includes a first pad 15 and a first positioning base 16. At least two first pads 15 are provided and are respectively provided below the first clamping member 121 and the second clamping member 122. The first positioning base 16 is provided in the first clamping area 11. The first support member 13 and the first positioning member 14 are both provided on the first positioning base 16.

[0060] In this embodiment, the first positioning base 16 provides an installation position for the first support member 13 and the first positioning member 14. The first support member 13 and the first positioning member 14 are disposed on the first positioning base 16. When the stationary vortex disk 3 is placed in the first clamping area 11 and supported and positioned by the first support member 13 and the first positioning member 14, the height of the entire stationary vortex disk 3 increases. In order to achieve stable clamping, a first pad 15 is disposed below the first clamping member 121 and the second clamping member 122, so that the first clamping member 121 and the second clamping member 122 are at the same height as the outer edge of the stationary vortex disk 3. The entire installation process of the polishing fixture is as follows: when installing the first clamping assembly 1, the first positioning base 16 is first installed on the first clamping area 11, then the first support member 13 and the first positioning member 14 are installed on the first positioning base 16, the first pad 15 is installed on both sides of the first positioning base 16, and finally the first clamping member 121 and the second clamping member 122 are respectively installed on the first pad 15. This embodiment improves the overall stability and positioning accuracy of the first clamping assembly 1 by setting a first pad 15 and a first positioning base 16. In specific implementations, the first pad 15 can be made of high-strength alloy material or engineering plastic material, and the first positioning base 16 can be made of high-precision machined cast iron.

[0061] Specifically, such as Figure 6 As shown, the second clamping member 22 includes a first clamping member 221 and a second clamping member 222 disposed on both sides of the second clamping area 21. The first clamping member 221 and the second clamping member 222 are used to clamp the substrate surface of the moving scroll disk 4.

[0062] In this embodiment, after the moving scroll plate 4 is placed in the second clamping area 21, the first clamping member 221 and the second clamping member 222 press down from above the substrate surface of the moving scroll plate 4 to contact the substrate surface, and cooperate with the second support member 23 to achieve clamping on the upper and lower sides of the substrate surface, thereby achieving stable clamping of the moving scroll plate 4 and ensuring the stability of the moving scroll plate 4 during the polishing process.

[0063] Specifically, such as Figure 6-7 As shown, the first clamping member 221 includes a third cylinder 2211 and a first clamping part 2212. One end of the first clamping part 2212 is connected to the top of the third cylinder 2211, and the other end of the first clamping part 2212 extends toward the second clamping area 21. The third cylinder 2211 can drive the other end of the first clamping part 2212 to approach the substrate surface of the moving scroll plate 4. The second clamping member 222 includes a fourth cylinder 2221 and a second clamping part 2222. One end of the second clamping part 2222 is connected to the top of the fourth cylinder 2221, and the other end of the second clamping part 2222 extends toward the second clamping area 21. The fourth cylinder 2221 can drive the other end of the second clamping part 2222 to approach the substrate surface of the moving scroll plate 4.

[0064] In this embodiment, the cylinder and pressing part of the second clamping member 22 are arranged on the same axis. Two cylinders are located on both sides of the second clamping area 21. One end of each pressing part is mounted on a corresponding cylinder, and the other end extends towards the second clamping area 21. The two cylinders drive the two pressing parts to move vertically, causing them to move closer to or away from the base plate surface of the moving scroll plate 4. When they move closer, both pressing parts simultaneously perform the pressing action. The entire working process is as follows: after the moving scroll plate 4 is placed, the third cylinder 2211 and the fourth cylinder 2221 respectively drive the first pressing part 2212 and the second pressing part 2222 to move towards the base plate surface of the moving scroll plate 4, achieving pressing. The third cylinder 2211 and the fourth cylinder 2221 are rotary pressing cylinders. This embodiment, through cylinder drive, can precisely control the pressing force, ensuring stable clamping of the moving scroll plate 4.

[0065] In a specific implementation, an elastic buffer layer can be provided at the contact point between the pressing part and the base plate surface of the moving scroll disk 4 to prevent damage to the moving scroll disk 4.

[0066] Specifically, such as Figure 6-7 As shown, both the first pressing part 2212 and the second pressing part 2222 include a pressing arm and a pressing head. One end of the pressing arm is connected to the top of the corresponding cylinder, and the other end of the pressing arm is connected to the pressing head.

[0067] In this embodiment, for ease of explanation, the clamping arm and clamping head of the first clamping part 2212 are referred to as the first clamping arm 22121 and the first clamping head 22122, and the clamping arm and clamping head of the second clamping part 2222 are referred to as the second clamping arm 22221 and the second clamping head 22222. Taking the first clamping part 2212 as an example, one end of the first clamping arm 22121 is connected to the top of the first cylinder 1211, and the other end of the first clamping arm 22121 extends toward the second clamping area 21. The extension length is set according to the horizontal length of one end of the first clamping arm 22121 from the base plate surface of the moving scroll plate 4. The other end of the first clamping arm 22121 is connected to the first clamping head 22122 on the side facing the second positioning area, so that the first clamping head 22122 is located above the base plate surface of the moving scroll plate 4. Similarly, the connection method of each component in the second pressing part 2222 is the same as that in the first pressing part 2212, and will not be described again here.

[0068] During the clamping process, the third cylinder 2211 and the fourth cylinder 2221 are driven simultaneously, causing the first clamping arm 22121 and the second clamping arm 22221 to move toward the base plate surface of the moving scroll plate 4. This causes the first clamping head 22122 and the second clamping head 22222 to clamp the base plate surface of the moving scroll plate 4. At this time, the second support member 23 and the second positioning member 24 support and position the lower side of the base plate surface of the scroll plate, while the first clamping head 22122 and the second clamping head 22222 clamp the upper side of the base plate surface of the moving scroll plate 4. The two sides cooperate with each other to achieve a tight clamping effect.

[0069] In a specific implementation, the clamping head can be designed as an arc-shaped structure that matches the shape of the base plate of the moving scroll disk 4 to increase the contact area. In addition, the clamping head can be made of nylon material to prevent the clamping head from damaging the base plate of the moving scroll disk 4. The connection between the clamping head and the clamping arm is set as a detachable connection for easy replacement and maintenance.

[0070] Specifically, such as Figure 6-7 As shown, the second clamping assembly 2 also includes a second pad 25 and a second positioning base 26. At least two second pads 25 are provided and are respectively provided below the first clamping member 221 and the second clamping member 222. The second positioning base 26 is provided in the second clamping area 21. The second support member 23 and the second positioning member 24 are both provided on the second positioning base 26.

[0071] In this embodiment, the second positioning base 26 is used to provide an installation position for the second support member 23 and the second positioning member 24. The second support member 23 and the second positioning member 24 are disposed on the second positioning base 26. When the moving scroll plate 4 is placed in the second clamping area 21 and supported and positioned by the second support member 23 and the second positioning member 24, the height of the entire moving scroll plate 4 increases. In order to achieve the clamping effect of the first clamping member 221 and the second clamping member 222, the first clamping member 221 and the second clamping member 222 need to be higher than the base plate surface of the moving scroll plate 4. Therefore, a second pad 25 can be provided below the first clamping member 221 and the second clamping member 222 to increase the height of the first clamping member 221 and the second clamping member 222. The entire installation process of the polishing fixture is as follows: When installing the second clamping assembly 2, first install the second positioning base 26 in the second clamping area 21, then install the second support member 23 and the second positioning member 24 on the second positioning base 26, install the second pad 25 on both sides of the second positioning base 26, and finally install the first clamping member 221 and the second clamping member 222 on the second pad 25 respectively. This embodiment improves the reliability and positioning accuracy of the second clamping assembly 2 by setting the second pad 25 and the second positioning base 26. In specific implementations, the material selection of the second pad 25 and the second positioning base 26 can refer to the first pad 15 and the first positioning base 16. The first positioning base 16 and the second positioning base 26 are set as circular positioning bases, and the height of the first pad 15 and the second pad 25 can be set according to the specific implementation scenario.

[0072] Specifically, such as Figure 3 and Figure 6 As shown, multiple first support members 13 are provided and arranged in a circular array on the first clamping area 11, and multiple second support members 23 are provided and arranged in a circular array on the second clamping area 21.

[0073] In this embodiment, the first support member 13 and the second support member 23 are both distributed in a circumferential array on the corresponding clamping area, which can uniformly support the scroll disk, distribute the weight of the entire scroll disk and the force during the polishing process, thereby ensuring the stability of the scroll disk during the clamping process and improving the polishing quality. In the specific implementation, three first support members 13 are provided, and the included angle between adjacent first support members 13 is 120° in the circumferential array. The three first support members 13 provide uniform support for the stationary scroll disk 3. Four second support members 23 are provided, and the included angle between adjacent second support members 23 is 90° in the circumferential array. The four second support members 23 provide uniform support for the moving scroll disk 4.

[0074] In other application scenarios, the number and spacing of the first support member 13 and the second support member 23 can be adjusted according to the size and weight of the stationary vortex disk 3 and the moving vortex disk 4.

[0075] Specifically, at least one of the two first positioning elements 14 is a cylindrical positioning element, and the other is a non-cylindrical positioning element.

[0076] In this embodiment, the use of first positioning members 14 of different shapes makes the connection between the first positioning member 14 and the stationary scroll 3 more stable, thereby improving the positioning accuracy of the stationary scroll 3. Furthermore, the cylindrical and non-cylindrical positioning members work together to position the stationary scroll 3, effectively restricting its degrees of freedom and ensuring that it does not easily rotate during polishing. In specific implementation, both the cylindrical and non-cylindrical positioning members are positioning pins; the difference is that the cylindrical positioning member is a positioning pin with a cylindrical top (e.g., ...). Figure 9 (b)) Non-cylindrical locating elements can be locating pins with a diamond-shaped top (e.g.) Figure 9 (a) can also use square locating pins as non-cylindrical locating components.

[0077] In practice, both cylindrical and non-cylindrical positioning parts are made of CrWMn material. The cylindrical bodies of the two positioning parts adopt a tapered design to improve the rigidity of the entire positioning part. The cylindrical bodies are 8mm positioning pins with an accuracy of less than 0.01mm. They are secured to the tooling base with three M4 countersunk screws around them, which facilitates disassembly and provides good interchangeability.

[0078] Specifically, the polishing fixture also includes a fixture base plate 5, and the first clamping component 1 and the second clamping component 2 are both installed on the fixture base plate 5, so that the entire polishing fixture can simultaneously clamp the stationary scroll plate 3 and the moving scroll plate 4, which facilitates polishing the stationary scroll plate 3 and the moving scroll plate 4 at the same time and improves work efficiency.

[0079] In this embodiment, the angular positioning method of the scroll disk is used to achieve high-precision positioning of the moving scroll disk 4 and the stationary scroll disk 3. Then, the surface is polished. The scroll disk is clamped by using horizontal cylinders (i.e., the first cylinder 1211 and the second cylinder 1221) and rotary clamping cylinders (i.e., the third cylinder 2211 and the fourth cylinder 2221), which ensures that no horizontal or vertical displacement occurs during polishing and ensures the consistency of polishing accuracy.

[0080] This utility model embodiment also provides a polishing device, which includes a polishing fixture as described in the foregoing embodiment and a brush 6 for polishing a vortex disk.

[0081] In this embodiment, the scroll disk includes a stationary scroll disk 3 and a moving scroll disk 4. Both of these disks need to be phosphated and then polished with a brush 6. The brush 6 is a bristle brush, and the brush 6 needs to be set according to the disk surface structure of the stationary scroll disk 3 and the moving scroll disk 4.

[0082] For the stationary scroll disk 3, the top and bottom surfaces of its spiral need to be polished. For the moving scroll disk 4, the bottom surface of its spiral needs to be polished. Before polishing, a comprehensive inspection of the stationary scroll disk 3 and the moving scroll disk 4 should be carried out, as shown in the table below:

[0083]

[0084] Brush 6 includes a first brush 61 and a second brush 62. The first brush 61 is used to polish the bottom surface of the spiral lines of the moving vortex disk 4 and the stationary vortex disk 3. The structural diagram of the first brush 61 is shown below. Figure 10 As shown, the first brush tool 61 includes a first brush handle 611 and a first brush head 612 connected in sequence. The diameter of the first brush handle 611 can be set to 8mm, and it is made of stainless steel round steel and is used to cooperate with the CNC milling machine tool holder. The first brush head 612 can be made of 10mm stainless steel sleeve. The first brush head 612 is provided with first brush bristles 613. The first brush bristles 613 can be made of stainless steel bristles with a diameter of 0.08mm. The first brush bristles 613 are folded and embedded into the stainless steel sleeve, and after being fixed, they form an integral structure of the first brush tool 61.

[0085] The second brush 62 is used to polish the top surface of the spiral of the stationary vortex disk 3. The structural diagram of the second brush is shown below. Figure 11 As shown, the second brush tool 62 includes a second brush handle 621 and a second brush head 622 connected in sequence. The second brush handle 621 is made of stainless steel round steel with a diameter of 8mm, and it cooperates with the tool holder of a CNC milling machine. The second brush head 622 is provided with second brush filaments 623, which are made of stainless steel wire with a diameter of 0.08mm. The second brush head 622 can be made of a nested sleeve of blue nylon injection molded part, and adopts a petal-shaped right-handed spiral (see reference). Figure 11 The design of (a) is based on the diameter of 50mm and the length of the second brush 623 is 25mm. It can effectively remove the loose phosphate layer on the top surface of the spiral of the static vortex disk 3 and achieve the polishing process requirements.

[0086] The two brushes used in the polishing process are circularly interpolated by a CNC milling machine according to XY, and moved for polishing according to the NC program. The brush rotation speed is 4500 rpm and the feed rate is 1200 mm / min. Here, the feed rate refers to the linear velocity of the brush along the tangent direction of the arc.

[0087] In practical implementation, brush 6 also includes a third brush 63, which can simultaneously polish the bottom surface and sidewalls of the spiral disc. The third brush 63 includes a third brush handle 631 and a third brush head 632 connected in sequence. The structural diagram of the third brush is shown below. Figure 12As shown, the front end of the third brush head 632 is provided with a third brush bristle 633 for polishing the bottom surface of the spiral pattern. A side brush bristle 634 for polishing the sidewalls is provided between the third brush handle 631 and the third brush bristle 633 to meet the demand for improved production efficiency. The third brush handle 631 is made of D6 stainless steel round bar, and both the third brush bristle 633 and the side brush bristle 634 are made of 0.08mm diameter stainless steel wire to simultaneously polish the bottom surface and sidewalls of the spiral pattern. To achieve better polishing results, in the specific implementation process, such as... Figure 13 As shown, the air nozzle 7 is located on the side of the third brush 63. During polishing, it blows air to remove the phosphate dust from the polished surface, thus achieving the required precision of the part surface.

[0088] In practical implementation, the mechanism that drives the brush 6 to rotate and move is as follows: Figure 14 As shown, a worktable is placed on the X and Y axes, and the polishing device is placed on the worktable. The brush 6 can move relative to each other under the drive of the servo motors of the X and Y axes. The Z axis realizes the up and down movement of the brush 6. A spindle is also installed on the Z axis. The spindle drives the brush 6 to rotate, so that the brush 6 polishes the moving scroll plate 4 and the stationary scroll plate 3.

[0089] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A polishing jig for clamping a scroll, the scroll including an orbiting scroll and a non-orbiting scroll, characterized by, The polishing fixture includes a first clamping component and a second clamping component, wherein the first clamping component has a first clamping area and the second clamping component has a second clamping area; The first clamping assembly includes a first clamping member for clamping the stationary scroll plate, a first support member for supporting the stationary scroll plate, and at least two first positioning members disposed opposite to each other in the first clamping area. The second clamping assembly includes a second clamping member for clamping the moving scroll plate, a second support member for supporting the moving scroll plate, and at least two second positioning members. At least one second positioning member is disposed at the center of the second clamping area, and at least another second positioning member is disposed at the periphery of the second clamping area.

2. The polishing fixture according to claim 1, characterized in that, The first clamping member includes a first clamping member and a second clamping member disposed on both sides of the first clamping area. The first clamping member and the second clamping member are used to clamp the outer edge of the static vortex disk.

3. The polishing fixture according to claim 2, characterized in that, The first clamping component includes a first cylinder and a first clamping block. The first clamping block is connected to one end of the first cylinder, and the first cylinder can drive the first clamping block to approach one side of the outer edge of the stationary vortex disk. The second clamping component includes a second cylinder and a second clamping block. The second clamping block is connected to one end of the second cylinder, and the second cylinder can drive the second clamping block to approach the other side of the outer edge of the stationary vortex disk.

4. The polishing fixture according to claim 3, characterized in that, The first clamping assembly further includes a first pad and a first positioning base. At least two first pads are provided and are respectively provided below the first clamping member and the second clamping member. The first positioning base is provided in the first clamping area. The first support member and the first positioning member are both provided on the first positioning base.

5. The polishing fixture according to claim 1, characterized in that, The second clamping member includes a first clamping member and a second clamping member disposed on both sides of the second clamping area. The first clamping member and the second clamping member are used to clamp the substrate surface of the moving scroll disk.

6. The polishing fixture according to claim 5, characterized in that, The first clamping member includes a third cylinder and a first clamping part. One end of the first clamping part is connected to the top of the third cylinder, and the other end of the first clamping part extends toward the second clamping area. The third cylinder can drive the other end of the first clamping part to approach the base plate surface of the moving scroll plate. The second clamping member includes a fourth cylinder and a second clamping part. One end of the second clamping part is connected to the top of the fourth cylinder, and the other end of the second clamping part extends toward the second clamping area. The fourth cylinder can drive the other end of the second clamping part to approach the base plate surface of the moving scroll plate.

7. The polishing fixture according to claim 6, characterized in that, Both the first and second pressing parts include a pressing arm and a pressing head. One end of the pressing arm is connected to the top of the corresponding cylinder, and the other end of the pressing arm is connected to the pressing head.

8. The polishing fixture according to claim 6, characterized in that, The second clamping assembly further includes a second pad and a second positioning base. At least two second pads are provided and are respectively provided below the first clamping member and the second clamping member. The second positioning base is provided in the second clamping area. The second support member and the second positioning member are both provided on the second positioning base.

9. The polishing fixture according to claim 1, characterized in that, Multiple first support members are provided and arranged in a circular array on the first clamping area, and multiple second support members are provided and arranged in a circular array on the second clamping area.

10. The polishing fixture according to claim 1, characterized in that, At least one of the two first positioning elements is a cylindrical positioning element, and the other is a non-cylindrical positioning element.

11. A polishing apparatus, characterized in that, Includes the polishing fixture as described in any one of claims 1-10 and the brush for polishing the scroll plate.

12. The polishing apparatus according to claim 11, characterized in that, The brush tool includes a first brush tool for polishing the bottom surface of the spiral of the moving vortex disk and the stationary vortex disk, and a second brush tool for polishing the top surface of the spiral of the stationary vortex disk. The first brush tool includes a first brush handle and a first brush head connected in sequence, and the first brush head is provided with a first brush bristle. The second brush tool includes a second brush handle and a second brush head connected in sequence, and the second brush head is provided with a second brush bristle.

13. The polishing apparatus according to claim 12, characterized in that, The brush tool also includes a third brush tool for polishing the bottom surface and sidewalls of the spiral disc. The third brush tool includes a third brush handle and a third brush head connected in sequence. The front end of the third brush head is provided with a third brush bristle for polishing the bottom surface of the spiral disc. A side brush bristle for polishing the sidewalls is provided between the third brush handle and the third brush bristle.

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