A method for high-temperature heating and corrosion prevention of a circular ring-shaped workpiece and a processing device

Abstract

The application discloses a kind of circular ring workpiece high temperature heating anticorrosion method, specific operation steps are as follows: S1: sawing bed round steel blanking to be processed circular ring workpiece roughcast;S2: workpiece roughcast heating temperature is 840 DEG C, keeps warm 25 min, air natural cooling;S3: rough turning workpiece roughcast outer circle, inner hole, and polishing its fillet, inner hole leaves 1mm excess amount.The application can make workpiece surface generate certain thickness and strength dense oxide layer by high temperature heating, keeping warm, saponification, oil immersion, and simultaneously form black or dark blue color, and emit metal luster, which is incomparable to the surface of parts after cutting processing, the oxide film can prevent workpiece from corrosion in humid, oil stain and some special working environment, improve the service life of workpiece, for mechanical parts manufacturing industry, this anticorrosion process is convenient to operate, save time, save raw materials, without using liquid medicine more environmental protection, high safety performance.

Description

Technical Field

[0001] This invention relates to the field of industrial automation technology, and in particular to a method and processing device for high-temperature heating and corrosion protection of circular workpieces. Background Technology

[0002] When power plant units or open-pit mining equipment are being repaired, parts with special requirements, such as nuts, that need to be replaced in environments with sewage, oil, atmospheric oxidation, acids, alkalis, or salt corrosion, are often machined for use. Basic anti-corrosion measures involve painting the parts, but this paint will peel off over time. However, some technically demanding parts can only be purchased externally, but the procurement cycle is long. For parts needed during power plant unit or open-pit mining equipment repairs, the demand is usually small-batch and cannot be bulk purchased, leading to untimely supply. This clearly fails to meet usage requirements and can even cause a single part to affect the overall utilization rate of the equipment.

[0003] To address the aforementioned issues, a special process needs to be explored throughout the entire manufacturing process to improve the corrosion resistance of the parts, fully leverage their high-strength performance, and extend their service life. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by this invention is that parts with high technical requirements can only be purchased from outside, but the purchase cycle is long. For the parts that need to be replaced when maintaining power plant units or open-pit mining equipment, the demand is only for single pieces and small batches, which cannot be formed into bulk purchases, so the supply is not timely.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a method for high-temperature heating and corrosion protection of a circular workpiece, the specific operation steps of which are as follows:

[0008] S1: The rough blank of a circular workpiece to be processed by the sawing machine for cutting round steel;

[0009] S2: Heat the workpiece blank to 840℃, hold for 25 minutes, and then allow it to cool naturally in the air.

[0010] S3: Rough turn the outer circle and inner hole of the workpiece blank, and grind its fillets, leaving a 1mm allowance for the inner hole;

[0011] S4: Finish-machine the inner hole and threads, and mill the outer hexagonal shape to obtain a workpiece with a complete shape;

[0012] S5: Heat the complete workpiece to 550℃, hold for 30 minutes, and then allow it to cool naturally in the air.

[0013] S6: After cooling, the parts are successively saponified and oil-immersed, and then naturally air-dried to obtain the finished anti-corrosion workpiece.

[0014] A circular workpiece processing device, comprising

[0015] Fixed base, fixed to the ground or processing platform;

[0016] A connecting bracket is mounted on the fixed base;

[0017] The power assembly includes a motor mounted on the fixed base and a transmission gear mounted on the motor;

[0018] The first positioning component includes a positioning cylinder disposed on the connecting bracket, a rotating ring disposed on the positioning cylinder, a first adjusting threaded rod, a first telescopic component, and a second telescopic component;

[0019] The rotating assembly includes a first gear and a fixed ring disposed on the positioning cylinder, a second gear disposed on the first gear, and a third gear disposed on the second gear;

[0020] The cutting assembly includes a connecting rod and a fixed circular plate disposed on the third gear, a limiting frame disposed on the fixed circular plate, a cutting blade and a spring disposed on the limiting frame, and a first positioning plate and a second positioning plate disposed on the connecting rod;

[0021] The adjustment assembly includes a second connecting plate disposed on the fixed circular plate, a fourth movable block and a limiting housing disposed on the second connecting plate, and a first threaded rod and an adjustment knob disposed on the limiting housing;

[0022] The second positioning component includes a positioning frame disposed on the first positioning plate, a second adjusting threaded rod and a fifth movable block disposed on the positioning frame, and a positioning wheel disposed on the fifth movable block.

[0023] In a preferred embodiment of the circular workpiece processing device of the present invention, the motor is fixedly connected to the fixed base, the transmission gear is disposed on the output shaft of the motor, the transmission gear meshes with the third gear, the third gear meshes with the second gear, the second gear meshes with the first gear, the first gear and the fixed ring are both fixedly connected to the positioning cylinder, and the positioning cylinder is fixedly connected to the connecting bracket.

[0024] In a preferred embodiment of the circular workpiece processing device of the present invention, the second gear, the fixed circular plate, and the limiting frame are all rotatably connected to the connecting rod, and the connecting rod is fixedly connected to the spring and the first positioning plate.

[0025] In a preferred embodiment of the circular workpiece processing device of the present invention, the first telescopic component includes a first movable block threadedly connected to a first adjusting threaded rod, a second movable block movably sleeved on the outer surface of the first movable block, a third movable block movably sleeved on the outer surface of the second movable block, a connecting block fixedly installed on the top of both the first and second movable blocks, a connecting ball column fixedly installed at one end of the inclined surface of both the first and second movable blocks, and the first movable block slidably connected to the positioning cylinder.

[0026] In a preferred embodiment of the circular workpiece processing device of the present invention, the second telescopic component includes a telescopic block fixedly connected to the positioning cylinder, a first connecting plate is fixedly installed on the top of the telescopic block, and the first connecting plate is fixedly connected to the third movable block.

[0027] In a preferred embodiment of the circular workpiece processing device of the present invention, the positioning cylinder is threadedly connected to the rotating ring, the first adjusting threaded rod is rotatably connected to the positioning cylinder, and the diameter of the first adjusting threaded rod is smaller than the inner diameter of the rotating ring.

[0028] In a preferred embodiment of the circular workpiece processing device of the present invention, the thickness of the fixed circular ring is greater than the thickness of the fixed circular plate.

[0029] In a preferred embodiment of the circular workpiece processing device of the present invention, the fixed circular plate is fixedly connected to the second connecting plate, the fourth movable block is slidably connected to the second connecting plate, the fourth movable block is in contact with the cutting blade, the fourth movable block is threadedly connected to the first threaded rod, the adjusting knob is meshed with the first threaded rod through a helical gear, and both the first threaded rod and the adjusting knob are rotatably connected to the limiting housing.

[0030] In a preferred embodiment of the circular workpiece processing device of the present invention, the positioning frame is fixedly connected to the first positioning plate, the second adjusting threaded rod is rotatably connected to the positioning frame, the fifth movable block is slidably connected to the positioning frame, the second adjusting threaded rod is threadedly connected to the fifth movable block, and the fifth movable block is rotatably connected to the positioning wheel.

[0031] The beneficial effects of this invention are as follows: By using high-temperature heating, heat preservation, saponification, and oil immersion, this invention can generate a dense oxide layer of a certain thickness and strength on the surface of the workpiece, which will form a black or dark blue color and emit a metallic luster. This is unmatched by the surface of parts that have only undergone machining. This oxide film can prevent the workpiece from corroding in special working environments such as humidity and oil, thereby improving the service life of the workpiece. For the mechanical parts manufacturing industry, this anti-corrosion process is convenient to operate, saves time and raw materials, is more environmentally friendly without the need for chemical solutions, and has high safety performance.

[0032] This invention enables the rotation of the third gear to drive the second gear to move and rotate along the inner wall of the third gear, thereby driving the cutting component, adjusting component, second positioning component and other structures in the middle of the second gear to move along the inner wall of the third gear, forming a cutting and grinding effect on the edges and corners of the workpiece. The device has a simple structure and can achieve a good processing effect without CNC.

[0033] This invention achieves the purpose of pushing the second movable block upward by designing the inclined surface of the first movable block. In turn, the second movable block can push the third movable block upward in the same way to fix the workpiece fitted on the surface of the positioning cylinder, ensuring stability during processing. With the second positioning plate fixed, the three connecting rods and the second positioning component are ensured to face the center of the first gear. This ensures that the position of the second positioning component will not rotate with the rotation of the second gear, so that the positioning wheel can always be in contact with the outer surface of the annular workpiece, thereby achieving a better positioning effect. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0035] Figure 1 This is a schematic diagram of the overall appearance in an embodiment of the present invention.

[0036] Figure 2 This is a schematic diagram of the appearance from another perspective in an embodiment of the present invention.

[0037] Figure 3This is a structural separation diagram of the rotating component in an embodiment of the present invention.

[0038] Figure 4 This is a structural separation diagram of the first positioning component in an embodiment of the present invention.

[0039] Figure 5 This is a schematic diagram of the structure of the first telescopic component in an embodiment of the present invention.

[0040] Figure 6 This is a cross-sectional view of the structure at the first telescopic component in an embodiment of the present invention.

[0041] Figure 7 This is a schematic diagram showing the position of the adjustment component in an embodiment of the present invention.

[0042] Figure 8 This is a detailed structural diagram of the second positioning component in an embodiment of the present invention.

[0043] Figure 9 This is a detailed structural diagram of the adjustment component in an embodiment of the present invention.

[0044] Figure 10 This is a schematic diagram of the heat treatment process curve for manufacturing nuts in an embodiment of the present invention.

[0045] In the diagram: 100, fixed base; 200, connecting bracket; 300, power component; 301, motor; 302, transmission gear; 400, first positioning component; 401, positioning cylinder; 402, rotating ring; 403, first adjusting threaded rod; 404, first telescopic component; 404a, first movable block; 404b, second movable block; 404c, third movable block; 404d, connecting ball column; 404e, connecting block; 405, second telescopic component; 405a, telescopic block; 405b, first connecting plate; 500, rotating component; 501, first gear; 50 2. Fixed ring; 503. Second gear; 504. Third gear; 600. Cutting assembly; 601. Connecting rod; 602. Fixed circular plate; 603. Limiting frame; 604. Cutting blade; 605. Spring; 606. First positioning plate; 607. Second positioning plate; 700. Adjusting assembly; 701. Second connecting plate; 702. Fourth movable block; 703. Limiting housing; 704. First threaded rod; 705. Adjusting knob; 800. Second positioning assembly; 801. Positioning frame; 802. Second adjusting threaded rod; 803. Fifth movable block; 804. Positioning wheel. Detailed Implementation

[0046] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0048] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0049] Example 1

[0050] Reference Figure 10 This is the first embodiment of the present invention, which provides a method for high-temperature heating and corrosion protection of a ring-shaped workpiece. The specific operation steps are as follows:

[0051] S1: The rough blank of a circular workpiece to be processed by the sawing machine for cutting round steel;

[0052] S2: Heat the workpiece blank to 840℃, hold for 25 minutes, and then allow it to cool naturally in the air.

[0053] S3: Rough turn the outer circle and inner hole of the workpiece blank, and grind its fillets, leaving a 1mm allowance for the inner hole;

[0054] S4: Finish-machine the inner hole and threads, and mill the outer hexagonal shape to obtain a workpiece with a complete shape;

[0055] S5: Heat the complete workpiece to 550℃, hold for 30 minutes, and then allow it to cool naturally in the air.

[0056] S6: After cooling, the parts are successively saponified and oil-immersed, and then naturally air-dried to obtain the finished anti-corrosion workpiece.

[0057] Normalizing involves heating the nut to 840℃, holding it at that temperature for 25 minutes, and then cooling it in air. Normalizing effectively removes internal stress, improves toughness and plasticity, and adjusts the hardness of the steel. Testing shows a significant improvement in the mechanical properties of the workpiece. While meeting strength requirements, the most crucial aspect, as demonstrated in this corrosion resistance test, is that heating the nut to 550℃ in an electric furnace, holding it for 30 minutes, followed by saponification and oil immersion, creates a dense oxide layer of a certain thickness and strength on the workpiece surface. Simultaneously, the nut surface develops a deep blue (almost black) color and a metallic luster. This is unparalleled by machined parts. This oxide film prevents corrosion in harsh environments, extending the workpiece's service life. The main component of this dense oxide film is Fe3O4, and its reaction equation is: 3Fe + 4H2O(g) = Fe3O4 + 4H2 (under high temperature conditions).

[0058] Example 2

[0059] Reference Figures 1-9 This is the second embodiment of the present invention, which is based on the previous embodiment. This embodiment provides a circular workpiece processing apparatus, including...

[0060] Fixed base 100, fixed to the ground or processing platform;

[0061] The connecting bracket 200 is mounted on the fixed base 100;

[0062] The power assembly 300 includes a motor 301 mounted on a fixed base 100 and a transmission gear 302 mounted on the motor 301;

[0063] The first positioning component 400 includes a positioning cylinder 401 disposed on the connecting bracket 200, a rotating ring 402 disposed on the positioning cylinder 401, a first adjusting threaded rod 403, a first telescopic component 404, and a second telescopic component 405;

[0064] The rotating assembly 500 includes a first gear 501 and a fixed ring 502 disposed on the positioning cylinder 401, a second gear 503 disposed on the first gear 501, and a third gear 504 disposed on the second gear 503.

[0065] The cutting assembly 600 includes a connecting rod 601 and a fixed circular plate 602 disposed on the third gear 504, a limiting frame 603 disposed on the fixed circular plate 602, a cutting blade 604 and a spring 605 disposed on the limiting frame 603, and a first positioning plate 606 and a second positioning plate 607 disposed on the connecting rod 601.

[0066] The adjustment assembly 700 includes a second connecting plate 701 disposed on a fixed circular plate 602, a fourth movable block 702 and a limiting housing 703 disposed on the second connecting plate 701, a first threaded rod 704 and an adjustment knob 705 disposed on the limiting housing 703;

[0067] The second positioning component 800 includes a positioning frame 801 disposed on the first positioning plate 606, a second adjusting threaded rod 802 and a fifth movable block 803 disposed on the positioning frame 801, and a positioning wheel 804 disposed on the fifth movable block 803.

[0068] The motor 301 is fixedly connected to the fixed base 100. The transmission gear 302 is set on the output shaft of the motor 301. The transmission gear 302 meshes with the third gear 504. The third gear 504 meshes with the second gear 503. The second gear 503 meshes with the first gear 501. The first gear 501 and the fixed ring 502 are both fixedly connected to the positioning cylinder 401. The positioning cylinder 401 is fixedly connected to the connecting bracket 200. When the motor 301 is working, the transmission gear 302 can drive the third gear 504 to rotate. Since the first gear 501 is fixedly connected to the positioning cylinder 401 and the positioning cylinder 401 is fixed by the connecting bracket 200, when the third gear 504 rotates, it can drive the second gear 503 to move and rotate along the inner wall of the third gear 504. This, in turn, drives the cutting component 600, the adjusting component 700, the second positioning component 800 and other structures in the middle of the second gear 503 to move along the inner wall of the third gear 504, forming a cutting and grinding process on the edges and corners of the workpiece.

[0069] The second gear 503, the fixed circular plate 602, and the limiting frame 603 are all rotatably connected to the connecting rod 601. The connecting rod 601 is fixedly connected to the spring 605 and the first positioning plate 606. With the second positioning plate 607 fixed, the three connecting rods 601 and the second positioning component 800 are ensured to face the center of the first gear 501. This ensures that the position of the second positioning component 800 will not rotate with the rotation of the second gear 503, so that the positioning wheel 804 can always fit against the outer surface of the annular workpiece, thereby achieving a better positioning effect.

[0070] Example 3

[0071] Reference Figures 4-9This is the third embodiment of the present invention, based on the previous embodiment. The first telescopic component 404 includes a first movable block 404a threadedly connected to the first adjusting threaded rod 403. A second movable block 404b is movably sleeved on the outer surface of the first movable block 404a. A third movable block 404c is movably sleeved on the outer surface of the second movable block 404b. A connecting block 404e is fixedly installed on the top of both the first movable block 404a and the second movable block 404b. A connecting ball column 404d is fixedly installed at one end of the inclined surface of both the first movable block 404a and the second movable block 404b. The first movable block 404a is slidably connected to the positioning cylinder 401. The second telescopic component 405 includes a telescopic block 405a fixedly connected to the positioning cylinder 401. A first connecting plate 405b is fixedly installed on the top of the telescopic block 405a. The first connecting plate 405b is fixedly connected to the third movable block 404c. By rotating the first adjusting threaded rod 403, the first movable block 404a can be moved. When the first movable block 404a moves towards the end closer to the rotating ring 402, the connecting ball 404d on it will first form a movable sleeve relationship with the second movable block 404b. Thus, the inclined surface of the first movable block 404a can be used to push the second movable block 404b upward. Then, the second movable block 404b can be used in the same way to push the third movable block 404c upward, fixing the workpiece on the surface of the positioning cylinder 401 and ensuring stability during processing. At the same time, the function of the first connecting plate 405b is to limit the third movable block 404c, ensuring that it can only move along the radius of the positioning cylinder 401.

[0072] The positioning cylinder 401 is threadedly connected to the rotating ring 402, and the first adjusting threaded rod 403 is rotatably connected to the positioning cylinder 401. The diameter of the first adjusting threaded rod 403 is smaller than the inner diameter of the rotating ring 402. When machining is required, the workpiece can be placed on the outer surface of the positioning cylinder 401, and then the rotating ring 402 can be screwed on to fix the workpiece, thereby ensuring the stability of the machining process. Since the diameter of the first adjusting threaded rod 403 is smaller than that of the rotating ring 402, the first adjusting threaded rod 403 will not be affected when the rotating ring 402 is disassembled, thus ensuring the rationality of the structure.

[0073] The thickness of the fixed ring 502 is greater than that of the fixed circular plate 602. To ensure the stability of the workpiece, the rotating ring 402 needs to rotate to compress the workpiece. As a result, the workpiece will inevitably be in contact with the fixed ring 502. Since the cutting blade 604 is in contact with the fixed circular plate 602, the non-endpoint portion of the inclined edge of the cutting blade 604 can be in contact with the corner of the workpiece, thus ensuring reasonable operation during processing. After the workpiece is installed, the cutting blade 604 is against the corner of the workpiece, and the spring 605 is in a compressed state, processing the corner of the workpiece during rotation.

[0074] The fixed circular plate 602 is fixedly connected to the second connecting plate 701, and the fourth movable block 702 is slidably connected to the second connecting plate 701. The fourth movable block 702 is in contact with the cutting blade 604 and is threadedly connected to the first threaded rod 704. The adjusting knob 705 is engaged with the first threaded rod 704 via a helical gear. Both the first threaded rod 704 and the adjusting knob 705 are rotatably connected to the limiting housing 703. When the adjusting knob 705 is rotated, it can drive the first threaded rod 704 to rotate, thereby driving the fourth movable blocks 702 at both ends to move synchronously towards or away from each other. When the two fourth movable blocks 702 move towards each other... The two cutting blades 604 can move synchronously towards each other. The size of the bevel angle can be controlled by the scale on the surface of the second connecting plate 701. After the workpiece is fixed on the positioning cylinder 401, it will squeeze the cutting blade 604, causing the cutting blade 604 to squeeze the spring 605 and compress the spring 605. However, when the motor 301 drives the transmission gear 302 to rotate, the cutting blade 604 can cut the bevel angle of the workpiece by its own rotation. When the cutting blade 604 contacts the fourth movable block 702, it means that the cutting angle has reached the predetermined size. At this time, even if the first gear 501 rotates again, there will be no problem of over-processing.

[0075] The positioning frame 801 is fixedly connected to the first positioning plate 606, the second adjusting threaded rod 802 is rotatably connected to the positioning frame 801, the fifth movable block 803 is slidably connected to the positioning frame 801, the second adjusting threaded rod 802 is threadedly connected to the fifth movable block 803, and the fifth movable block 803 is rotatably connected to the positioning wheel 804. In this way, since the connecting rod 601 does not rotate during the rotation along the inner side of the second gear 503, and the connecting rod 601 is limited by the second positioning plate 607, the positioning frame 801, the second adjusting threaded rod 802, and the fifth movable block 803 will not rotate. Thus, when the second adjusting threaded rod 802 is rotated, the fifth movable block 803 can be driven to move inside the positioning frame 801, thereby ensuring the stability of the connection between the positioning wheel 804 and the outer surface of the workpiece.

[0076] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0077] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments may be described, i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention.

[0078] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A circular workpiece processing device, characterized in that: include Fixed base (100), fixed to the ground or processing platform; A connecting bracket (200) is disposed on the fixed base (100); The power assembly (300) includes a motor (301) mounted on the fixed base (100) and a transmission gear (302) mounted on the motor (301). The first positioning component (400) includes a positioning cylinder (401) disposed on the connecting bracket (200), a rotating ring (402), a first adjusting threaded rod (403), a first telescopic component (404), and a second telescopic component (405) disposed on the positioning cylinder (401). The rotating assembly (500) includes a first gear (501) and a fixed ring (502) disposed on the positioning cylinder (401), a second gear (503) disposed on the first gear (501), and a third gear (504) disposed on the second gear (503). The cutting assembly (600) includes a connecting rod (601) and a fixed circular plate (602) disposed on the third gear (504), a limiting frame (603) disposed on the fixed circular plate (602), a cutting blade (604) and a spring (605) disposed on the limiting frame (603), and a first positioning plate (606) and a second positioning plate (607) disposed on the connecting rod (601). The adjustment assembly (700) includes a second connecting plate (701) disposed on the fixed circular plate (602), a fourth movable block (702) and a limiting shell (703) disposed on the second connecting plate (701), a first threaded rod (704) and an adjustment knob (705) disposed on the limiting shell (703). The second positioning component (800) includes a positioning frame (801) disposed on the first positioning plate (606), a second adjusting threaded rod (802) and a fifth movable block (803) disposed on the positioning frame (801), and a positioning wheel (804) disposed on the fifth movable block (803).

2. The circular workpiece processing device as described in claim 1, characterized in that: The motor (301) is fixedly connected to the fixed base (100). The transmission gear (302) is disposed on the output shaft of the motor (301). The transmission gear (302) meshes with the third gear (504). The third gear (504) meshes with the second gear (503). The second gear (503) meshes with the first gear (501). The first gear (501) and the fixed ring (502) are both fixedly connected to the positioning cylinder (401). The positioning cylinder (401) is fixedly connected to the connecting bracket (200).

3. The circular workpiece processing device as described in claim 1, characterized in that: The second gear (503), the fixed circular plate (602), and the limiting frame (603) are all rotatably connected to the connecting rod (601), and the connecting rod (601) is fixedly connected to the spring (605) and the first positioning plate (606).

4. The circular workpiece processing device as described in claim 1, characterized in that: The first telescopic assembly (404) includes a first movable block (404a) threadedly connected to a first adjusting threaded rod (403). A second movable block (404b) is movably sleeved on the outer surface of the first movable block (404a). A third movable block (404c) is movably sleeved on the outer surface of the second movable block (404b). A connecting block (404e) is fixedly installed on the top of both the first movable block (404a) and the second movable block (404b). A connecting ball column (404d) is fixedly installed at one end of the inclined surface of both the first movable block (404a) and the second movable block (404b). The first movable block (404a) is slidably connected to the positioning cylinder (401).

5. The circular workpiece processing device as described in claim 4, characterized in that: The second telescopic component (405) includes a telescopic block (405a) fixedly connected to the positioning cylinder (401), and a first connecting plate (405b) is fixedly installed on the top of the telescopic block (405a). The first connecting plate (405b) is fixedly connected to the third movable block (404c).

6. The circular workpiece processing device as described in claim 1, characterized in that: The positioning cylinder (401) is threadedly connected to the rotating ring (402), and the first adjusting threaded rod (403) is rotatably connected to the positioning cylinder (401). The diameter of the first adjusting threaded rod (403) is smaller than the inner diameter of the rotating ring (402).

7. The circular workpiece processing device as described in claim 1, characterized in that: The thickness of the fixed ring (502) is greater than the thickness of the fixed circular plate (602).

8. The circular workpiece processing device as described in claim 1, characterized in that: The fixed circular plate (602) is fixedly connected to the second connecting plate (701), the fourth movable block (702) is slidably connected to the second connecting plate (701), the fourth movable block (702) is in contact with the cutting blade (604), the fourth movable block (702) is threadedly connected to the first threaded rod (704), the adjusting knob (705) is meshed with the first threaded rod (704) through a helical gear, and both the first threaded rod (704) and the adjusting knob (705) are rotatably connected to the limiting shell (703).

9. The annular workpiece processing device as described in claim 1, characterized in that: The positioning frame (801) is fixedly connected to the first positioning plate (606), the second adjusting threaded rod (802) is rotatably connected to the positioning frame (801), the fifth movable block (803) is slidably connected to the positioning frame (801), the second adjusting threaded rod (802) is threadedly connected to the fifth movable block (803), and the fifth movable block (803) is rotatably connected to the positioning wheel (804).

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