Machining method of split type annular part
By cutting the whole ring blank into a half ring blank and assembling it into a whole ring for processing, the warping problem of split ring parts during cutting is solved, and a high-precision processing effect is achieved.
Patent Information
- Application Number
- CN202510526476.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2025-08-19
AI Technical Summary
Due to the large diameter and thickness ratio of split ring parts during processing, they are prone to warping during cutting, resulting in changes in the size of the inner hole and outer circle, which is difficult to meet the requirements of high precision.
First cut the whole ring blank into two half ring blanks, then assemble the half ring blank into a whole ring, and perform the finishing of the inner hole, outer circle, etc. to avoid the size change during cutting.
The machining accuracy of split ring parts is improved, ensuring that the two arc structures are concentric, and errors caused by cutting are avoided.
Smart Images
Figure CN120502969A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure belongs to the field of mechanical processing technology, and in particular relates to a processing method of a split annular part. Background Art
[0002] Split annular parts consist of two identical arcs, arranged concentrically and spaced apart. These parts are often used for assembly on shafts, where their outer diameters and end faces are assembled with other parts. Therefore, high dimensional accuracy is required.
[0003] In the related art, to ensure the concentricity of the two arc-shaped structures during machining, a circular ring structure must first be machined. The inner hole and outer circle of the circular ring structure are then fine-machined to ensure that the inner hole and outer circle of the circular ring structure meet the inner hole and outer circle size requirements of the split-type annular component. The circular ring is then cut to form the split-type annular component.
[0004] However, since the processed annular parts need to be cut to obtain split annular parts during processing, and the split annular parts have a large diameter-to-thickness ratio (the diameter-to-thickness ratio is 50:1-20:1, and the parts are relatively thin), the parts are prone to warping during cutting, resulting in changes in the processed inner hole and outer circle sizes, thereby reducing the processing accuracy of the split annular parts and failing to meet the processing requirements. Summary of the Invention
[0005] The disclosed embodiment provides a method for processing a split annular part, which can improve the processing accuracy of the part. The technical solution is as follows:
[0006] An embodiment of the present disclosure provides a method for processing a split annular part, the method comprising: providing a full-ring blank; cutting the full-ring blank into two half-ring blanks; assembling the two half-ring blanks to form a full ring; fine-machining the outer circle and inner hole of the full ring; and fine-machining the butt joints of the two half-ring blanks that form the full ring, so that after fine-machining, the two half-ring blanks are spaced apart from each other and form two arc-shaped structures, thereby obtaining a split annular part.
[0007] In another embodiment of the present disclosure, providing a full-ring blank includes: providing an annular part; rough-machining the outer circle, end face and inner hole of the annular part; and machining a plurality of through holes arranged circumferentially at intervals on the end face of the annular part.
[0008] In another embodiment of the present disclosure, the processing method further includes: after cutting the full-ring blank into two half-ring blanks, performing an annealing process on the two half-ring blanks; and processing part of the through holes of the two half-ring blanks into process threaded holes.
[0009] In another embodiment of the present disclosure, the processing method further includes: after the annealing process is performed on the two semi-ring blanks, semi-finishing the end faces, outer circles and inner holes of the two semi-ring blanks is performed; and natural aging is performed on the semi-finished two semi-ring blanks to eliminate stress.
[0010] In another embodiment of the present disclosure, the semi-finishing of the end faces, outer circles and inner holes of the two semi-ring blanks includes: fixing one end of the semi-ring blank on the chassis through the process threaded hole so that the interiors of the two semi-ring blanks form a full circle; semi-finishing one end face, outer circle and inner hole of the two semi-ring blanks that form a full circle away from the chassis; disassembling the semi-ring blanks so that one end face of the two semi-ring blanks after semi-finishing is fixed on the chassis through the process threaded hole and forms a full circle, and semi-finishing the other end face of the two semi-ring blanks.
[0011] In another embodiment of the present disclosure, the processing method further includes: after semi-finishing the end faces, outer circles and inner holes of the two semi-ring blanks, grinding the end faces of the two semi-ring blanks so that the thickness of the two semi-ring blanks meets the requirements.
[0012] In another implementation of the present disclosure, assembling the two half-ring blanks to form a complete ring includes: clamping the two half-ring blanks between the base and the top cover so that the two half-ring blanks are assembled to form a complete ring; processing part of the through holes in each of the half-ring blanks into first pin holes, and processing second pin holes corresponding to the first pin holes in one of the base and the top cover; and inserting positioning pins into the first pin holes and the second pin holes corresponding to each other.
[0013] In another implementation of the present disclosure, the fine machining of the outer circle and inner hole of the full ring includes: fine turning the inner hole and outer circle of the full ring with the end face of the half-ring blank as a reference; fine milling the first pin hole on the end face of the full ring; and fine milling the butt joint surfaces of the two half-ring blanks forming the full ring to obtain two arc-shaped structures.
[0014] In yet another implementation of the present disclosure, the processing method further includes: removing burrs on the surfaces of the two arc-shaped structures.
[0015] In another implementation of the present disclosure, the processing method further includes: performing color flaw detection on the surfaces of the two arc-shaped structures.
[0016] The technical solutions provided by the embodiments of the present disclosure have the following beneficial effects:
[0017] When the split annular part processing method provided by the embodiment of the present disclosure is used to process the split annular part, since the processing method first cuts the full-ring blank into two half-ring blanks, and then assembles the half-ring blanks into a full ring to process the inner hole, outer circle, etc., the two arc structures in the processed split annular part can be made concentric. At the same time, the change in the size of the inner hole or outer circle during cutting can be avoided, thereby greatly improving the processing accuracy.
[0018] That is to say, the processing method provided by the embodiment of the present disclosure is to first cut the full-ring blank into two half-ring blanks, and then form the two half-ring blanks into a full ring to process the required dimensions of the inner hole, outer circle, etc. This can greatly improve the processing accuracy and avoid the errors caused by first processing the inner hole and then cutting it into a split structure in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0020] Figure 1 A schematic structural diagram of a split annular part provided in an embodiment of the present disclosure;
[0021] Figure 2 for Figure 1 sectional view of
[0022] Figure 3 A flowchart of a method for processing a split annular part provided in an embodiment of the present disclosure;
[0023] Figure 4 A flow chart of another method for processing a split annular part provided by an embodiment of the present disclosure;
[0024] Figure 5 A schematic diagram of the assembly of a semi-finished half-ring blank provided in an embodiment of the present disclosure;
[0025] Figure 6 Schematic diagram of assembly for finishing of a complete ring provided in an embodiment of the present disclosure.
[0026] The symbols in the figure mean the following:
[0027] 100, annular part; 101, arc-shaped structure; 102, through hole; 103, stepped countersunk hole; 101a, semi-ring blank;
[0028] 200, chassis; 201, stepped hole;
[0029] 301. Base; 302. Top cover. DETAILED DESCRIPTION
[0030] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.
[0031] Figure 1 A schematic structural diagram of a split annular part provided in an embodiment of the present disclosure, combined with Figure 1 The split annular component 100 includes two identical arc-shaped structures 101. The two arc-shaped structures 101 are concentrically arranged and spaced apart from each other to form an opening. The arc-shaped structures 101 are not standard semicircular structures.
[0032] Each arc-shaped structure 101 is evenly spaced along its arc length direction and has a plurality of through holes 102. The axis direction of each through hole 102 is the same as the axis direction of the semi-ring blank.
[0033] Figure 2 for Figure 1 Cross-sectional view, combined with Figure 2 The inner hole defined by the two arc-shaped structures 101 is a stepped countersunk hole 103 .
[0034] In this embodiment, the split annular component is often used for on-shaft assembly. Its outer diameter and end faces are assembled with other components, so high dimensional accuracy is required. Furthermore, the split annular component has a large diameter-to-thickness ratio, ranging from 50:1 to 20:1. Due to its relatively thin construction, the split annular component is prone to deformation during machining. Therefore, it is important to minimize this deformation during machining.
[0035] The present invention provides a method for processing a split annular part. Figure 1 and Figure 2 Split ring part shown.
[0036] Figure 3 A flowchart of a processing method for a split annular part provided in an embodiment of the present disclosure, combined with Figure 3 , processing methods include:
[0037] S301: Provide a full-ring blank.
[0038] The interior of the full-ring blank has a circular inner hole, and the end surface has a plurality of through holes arranged circumferentially.
[0039] Each through hole passes through two opposite end faces of the full-ring blank.
[0040] S302: Cutting the full-ring blank into two half-ring blanks.
[0041] S303: Assemble the two half-ring blanks to form a full ring.
[0042] S304: Finish machining the outer circle and inner hole of the entire ring.
[0043] S305: finishing the two end faces of the two semi-ring blanks in the arc length direction so that the two semi-ring blanks after finishing are spaced apart from each other and form two arc structures, thereby obtaining a split annular part.
[0044] When the split annular part processing method provided by the embodiment of the present disclosure is used to process the split annular part, since the processing method first cuts the full-ring blank into two half-ring blanks, and then assembles the half-ring blanks into a full ring to perform fine processing of the inner hole, outer circle, etc., the two arc structures in the processed split annular part can be made concentric. At the same time, the change in the size of the inner hole or outer circle during cutting can be avoided, thereby greatly improving the processing accuracy.
[0045] That is to say, the processing method provided by the embodiment of the present disclosure is to first cut the full-ring blank into two half-ring blanks, and then form the two half-ring blanks into a full ring to process the required dimensions of the inner hole, outer circle, etc. This can greatly improve the processing accuracy and avoid the errors caused by first processing the inner hole and then cutting it into a split structure in the related technology.
[0046] On the other hand, the embodiment of the present disclosure also provides a method for processing a split annular part, such as Figure 4 As shown, the processing method includes:
[0047] S401: Provide ring parts.
[0048] In this embodiment, the annular part can be obtained by cutting the plate. The annular part can be one of steel, aluminum alloy, copper alloy, titanium alloy, nickel-based alloy, etc.
[0049] Among them, the outer diameter of the annular part is 1300mm, the inner diameter is 1000mm, and the thickness is 40mm.
[0050] S402: Rough machining of the outer circle, end face and inner hole of the annular part.
[0051] Rough machining is performed on the outer circle, end face and inner hole of the annular parts to obtain better size and shape accuracy.
[0052] During rough machining, the outer circle, end face and inner hole of the annular parts can be rough turned.
[0053] S403: A plurality of circumferentially arranged through holes are machined on the end face of the annular part to obtain a full-ring blank.
[0054] A circle of through holes is roughly bored on the end face of the annular part.
[0055] The arrangement of through holes can remove the excess. In other words, the arrangement of through holes can reduce the amount of material removed during finishing, reduce the stress during finishing, and thus reduce deformation.
[0056] When machining through holes, the end face of the annular part can be rough-machined by a boring bar to obtain multiple through holes.
[0057] S404: Cutting the full-ring blank into two half-ring blanks.
[0058] The full-ring blank is cut by wire cutting to split it into two half-ring blanks for subsequent processing.
[0059] S405: performing an annealing process on the two half-ring blanks.
[0060] Annealing the two half-ring blanks can remove stress changes during processing and reduce deformation of the parts.
[0061] For example, during annealing, the two half-ring blanks can be placed in a high-temperature oven at 500-700°C, left to stand for 3-4 hours, and then cooled to room temperature.
[0062] In other examples, step S405 can also be replaced by other methods, such as, after cutting the full-ring blank into two half-ring blanks, long-term heat preservation at low temperature can be used to release the stress after rough processing and reduce the deformation of the parts.
[0063] S406: Processing part of the through holes of the two half-ring blanks into process threaded holes.
[0064] Part of the through holes on the end faces of the two half-ring blanks are milled into process threaded holes.
[0065] The process threaded holes facilitate subsequent fixing of the two half-ring blanks, so that the two half-ring blanks can form a full circle for further processing.
[0066] In this embodiment, four evenly spaced through holes may be selected from a plurality of through holes in each half-ring blank to form subsequent process threaded holes.
[0067] In addition, after milling the process threads, matching marks can be made on the end faces of the two half-ring blanks to facilitate the subsequent installation and processing of the two half-ring blanks to prevent them from being taken upside down or incorrectly.
[0068] In the embodiment of the present disclosure, the pairing mark can be any pattern, symbol, hole, line, etc., as long as it can distinguish the mating surfaces of the two half-ring blanks. The present disclosure does not impose any restrictions on this.
[0069] For example, an identification symbol may be machined on one end face of one of the half-ring blanks, and then an identification symbol may also be machined on one end face of the other half-ring blank.
[0070] In this way, when the two half-ring blanks are subsequently butted together to form a full ring, the end faces with identification marks can be butted together, and the end faces without identification marks can be butted together, so as to avoid taking the half-ring blank upside down or wrongly.
[0071] S407: Perform semi-finishing on the end faces, outer circles and inner holes of the two half-ring blanks.
[0072] In the disclosed embodiment, in order to improve the processing efficiency, the two half-ring blanks may be semi-finished before finishing.
[0073] During semi-finishing, the end faces, outer circles and inner holes of the two half-ring blanks can be semi-finished. During semi-finishing, a machining allowance of 0.3mm is left on one side of the end face of each half-ring blank, and a machining allowance of 1mm is left on one side of the radial direction of each half-ring blank.
[0074] It should be noted that during semi-finishing turning, the flatness of one end of the end face must be 0.03mm and the parallelism of both end faces must be 0.03mm.
[0075] In this embodiment, S407 may be performed according to the following steps:
[0076] First, one end of the half-ring blank is fixed to the chassis through the process threaded hole, so that the interiors of the two half-ring blanks form a full circle.
[0077] Then, semi-finishing is performed on the end surface, outer circle and inner hole of the two semi-ring blanks that form a full circle and are away from the chassis.
[0078] Next, the semi-ring blanks are disassembled and assembled so that one end surface of the two semi-finished semi-ring blanks are fixed on the chassis through the process threaded holes and form a full circle, and the other end surfaces of the two semi-ring blanks are semi-finished.
[0079] In this embodiment, when semi-finishing machining is performed on two half-ring blanks, the half-ring blanks can be machined as follows: Figure 5 Assemble as shown.
[0080] Figure 5 The assembly diagram of the semi-finishing of the semi-ring blank provided in the embodiment of the present disclosure is combined with Figure 5During semi-finishing, the two half-ring blanks 101a can be assembled on the circular chassis 200 first.
[0081] The chassis 200 is coaxially arranged with the semi-annular blank 101a. Fasteners such as bolts are inserted into the process threaded holes in each semi-annular blank 101a so that the semi-annular blank 101a is fixed on the chassis 200.
[0082] In this embodiment, in order to facilitate processing, the outer diameter of the chassis 200 is smaller than the outer diameter of the semi-ring blank 101a.
[0083] The bottom plate 200 has a stepped hole 201, and the end with the larger inner diameter of the stepped hole 201 is connected to the inner hole of the semi-ring blank 101a. The inner diameter of the larger end of the stepped hole 201 is larger than the inner diameter of the semi-ring blank 101a.
[0084] After the semi-ring blanks 101a are assembled, the inner hole, outer circle and one end face away from the chassis 200 of each semi-ring blank 101a can be semi-finished so that the inner hole, outer circle, etc. of the semi-ring blank 101a have a finishing allowance.
[0085] It should be noted that after assembly, after semi-finishing one of the end faces of each semi-ring blank 101a, the semi-ring blank 101a needs to be dismantled to arrange the other end face away from the chassis, and then semi-finishing the end face away from the chassis so that the flatness of each end face is 0.03mm and the parallelism of the two end faces is 0.03mm.
[0086] S408: Perform natural aging to relieve stress on the two half-ring blanks after semi-finish turning.
[0087] Natural Aging Stress Relief is a process in which the two semi-finished half-ring blanks are left at ambient temperature for a long time to remove stress and reduce deformation by homogenizing the residual stress through atomic diffusion and dislocation recombination within the material.
[0088] In this embodiment, the two half-ring blanks after semi-finishing turning can be placed at room temperature for 0.5-6 months to remove stress.
[0089] S409: Grinding the end faces of the two half-ring blanks so that the thickness of the two half-ring blanks meets the requirements.
[0090] In order to reduce the machining allowance during finishing, the thickness of the two half-ring blanks after semi-finishing can be ground first.
[0091] During grinding, a grinder is used to first flatten one end face of each half-ring blank and use it as a reference surface for grinding. The half-ring part is then axially reversed and assembled on the grinder, and the other end face is ground to the appropriate size using a grinding wheel.
[0092] The half-ring blank is then turned over and the end face serving as the reference surface is ground.
[0093] It should be noted that each time the surface is ground, the flatness of the end face must be no greater than 0.02mm.
[0094] S410: Assemble the two half-ring blanks to form a full ring.
[0095] By assembling the two half-ring blanks to form a full ring, the inner hole can be easily finished so that the inner holes of the two half-ring blanks are concentric.
[0096] In the embodiment of the present disclosure, during assembly, it can be achieved in the following manner:
[0097] 4101: The two half-ring blanks are coaxially clamped between the base and the top cover so that the two half-ring blanks are assembled to form a full ring.
[0098] One end of each semi-ring blank is connected to the base, and the other end is connected to the top cover.
[0099] 4102: Process part of the through hole in each half-ring blank into a first pin hole, and process a second pin hole corresponding to the first pin hole on one of the base and the top cover.
[0100] That is, a second pin hole corresponding to the first pin hole is opened in one of the base or the top cover.
[0101] In this embodiment, the first pin holes can be four evenly spaced holes. The first pin holes can be processed from the original process threaded holes or the original through holes. As long as the positioning pin can be inserted, it will be fine.
[0102] 4103: Insert the positioning pin into the first pin hole and the second pin hole corresponding to each other.
[0103] After the first pin hole and the second pin hole are processed in this way, the positioning pins are installed, and the two half-ring blanks 101a and the base and the top cover form a whole, thereby preventing the two half-ring blanks 101a from moving relative to the base and the top cover during subsequent processing.
[0104] Moreover, the two half-ring blanks 101a can be formed into a full ring for subsequent processing.
[0105] Figure 6 The assembly diagram of the fine processing of the whole ring provided by the embodiment of the present disclosure is combined with Figure 6During assembly, the two half-ring blanks 101a processed to the required thickness are first clamped between the base 301 and the top cover 302 to form a complete ring.
[0106] Insert a bolt into the process threaded hole of each half-ring blank 101a, and insert the two ends of the bolt into the base 301 and the top cover 302 respectively, and then tighten nuts at both ends of the bolt. In this way, the two half-ring blanks can be completely clamped between the base and the top cover.
[0107] In this embodiment, in order to simplify the assembly structure, the base 301 and the top cover 302 have the same structure. The base 301 and the top cover 302 can both be annular plate structures.
[0108] Combine Figure 6 The outer diameters of the base 301 and the top cover 302 are smaller than the outer diameter of the semi-ring blank 101a, and the inner diameters of the base 301 and the top cover 302 are larger than the inner diameter of the semi-ring blank 101a.
[0109] It should be noted that when the semi-ring blank is installed between the base 301 and the top cover 302, it is necessary to ensure that the difference in opening size between the inner hole and the outer circle of the semi-ring blank does not exceed 0.5 mm.
[0110] In addition, since the inner hole of the split annular part is a stepped countersink with steps, before finishing the whole ring formed by the half-ring blanks of the chain, the inner hole of the center of the circle formed by the two half-ring blanks needs to be processed into a stepped countersink.
[0111] The so-called stepped countersunk hole has a flange in the axial middle of the inner hole, so that the inner diameters of the two ends of the inner hole are larger than the inner diameter of the middle part.
[0112] In this embodiment, before the through hole of each semi-ring blank is processed into the first pin hole, the inner hole of the semi-ring blank is first milled to form a stepped countersunk hole.
[0113] That is to say, after step 4101 in the above S410 and before step 4102, step 4104 can be included: processing the circular inner hole of the entire ring into a stepped countersink.
[0114] In other examples, if the shape of the inner hole of the split annular part is other shapes, the above steps can be directly replaced to process the circular inner hole into the required inner hole shape.
[0115] S411: Finish machining the inner hole and outer circle of the entire ring.
[0116] In step S411, during the fine machining, the end face of the ground half-ring blank is used as a reference to fine-turn the inner hole (including the inner hole step) and outer circle of the full ring so that the step countersink, outer circle, etc. meet the size requirements of the part.
[0117] S412: Finish machining the through holes on the end faces of the entire ring.
[0118] In this embodiment, each through hole on the entire ring is precision milled so that various dimensions (including inner diameter, roughness, roundness, etc.) of the through holes meet the dimensional requirements of the part.
[0119] S413: performing fine processing on the butt joint surfaces of the two half-ring blanks forming the full ring, so that the two half-ring blanks after fine processing are spaced apart from each other to obtain two arc-shaped structures.
[0120] The butt joints of the two half-ring blanks forming the full ring are finely machined to form a desired opening between the two half-ring blanks, which naturally converts the full ring into a split ring structure, i.e., two arc-shaped structures.
[0121] That is, the butt joint surfaces of the two half-ring blanks that form a full ring are precision milled so that an opening is formed between the two half-ring blanks.
[0122] S414: removing burrs from the surfaces of the two arc-shaped structures.
[0123] Deburring is a key process for removing burrs and flash from the edges of parts after machining, which directly affects the assembly accuracy and service life of the product.
[0124] In this embodiment, the burrs on the surface of the arc-shaped structure can be removed manually using a diamond file or the like.
[0125] In other examples, deburring can also be done by means of water jets or the like.
[0126] S415: Perform color flaw detection on the surfaces of the two arc-shaped structures.
[0127] Penetrant testing (PT) is a nondestructive testing method widely used to detect surface defects in both metal and non-metal materials. Its core function is to reveal surface defects (such as cracks and pores) that are invisible to the naked eye through capillary action.
[0128] In this embodiment, the two arc-shaped structures can be further inspected for defects such as surface cracks and pores by color flaw detection.
[0129] The processing method provided by the embodiment of the present disclosure first removes most of the material of the semi-ring blank through rough machining and semi-finishing, reduces the finishing allowance, and reduces processing deformation; then releases the processing stress through natural aging; then, after the thickness is first processed to the required level and the two semi-ring blanks are combined into a full ring, the inner hole and outer circle of the full ring are fine-machined to ensure that the two arc-shaped structures can be concentric after separation; finally, the end surface system is processed to make the full ring into a split ring part. The above-mentioned processing method can reduce the processing deformation of the part and complete the processing.
[0130] The above description is merely an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.
Claims
1. A method for processing a split annular part, characterized in that: The processing method comprises: Provide a full ring blank; Cutting the full-ring blank into two half-ring blanks; Assembling the two half-ring blanks to form a full ring; Finishing the outer circle and inner hole of the complete ring; The butt joint surfaces of the two half-ring blanks forming the full ring are finely machined so that the two half-ring blanks are spaced apart from each other after fine machining and form two arc-shaped structures, thereby obtaining a split ring part.
2. The processing method according to claim 1, characterized in that: The method of providing a full ring blank comprises: Provide ring parts; Rough machining is performed on the outer circle, end face and inner hole of the annular part; A plurality of through holes arranged at circumferential intervals are machined on the end surface of the annular component.
3. The processing method according to claim 2, characterized in that: The processing method further comprises: After the full-ring blank is cut into two half-ring blanks, the two half-ring blanks are subjected to an annealing process; Part of the through holes of the two half-ring blanks are processed into process threaded holes.
4. The processing method according to claim 3, characterized in that: The processing method further comprises: After the two semi-ring blanks are subjected to the annealing process, the end faces, outer circles and inner holes of the two semi-ring blanks are semi-finished; The two semi-ring blanks after semi-finishing are subjected to natural aging to eliminate stress.
5. The processing method according to claim 4, characterized in that: The semi-finishing of the end faces, outer circles and inner holes of the two semi-ring blanks comprises: Fixing one end of the semi-ring blank to the chassis through the process threaded hole so that the interiors of the two semi-ring blanks form a full circle; Semi-finishing is performed on the end surface, outer circle and inner hole of the two semi-ring blanks that form a full circle and are away from the chassis; The semi-ring blanks are disassembled and assembled so that one end surface of the two semi-ring blanks after semi-finishing are fixed on the chassis through the process threaded holes respectively and form a full circle, and the other end surfaces of the two semi-ring blanks are semi-finished.
6. The processing method according to claim 4, characterized in that: The processing method further comprises: After semi-finishing the end faces, outer circles and inner holes of the two half-ring blanks, the end faces of the two half-ring blanks are ground so that the thickness of the two half-ring blanks meets the requirements.
7. The processing method according to claim 6, characterized in that: Assembling the two half-ring blanks to form a complete ring comprises: clamping the two half-ring blanks between the base and the top cover so that the two half-ring blanks are assembled to form a complete ring; Processing a portion of the through holes in each of the semi-ring blanks into first pin holes, and processing second pin holes corresponding to the first pin holes in one of the base and the top cover; A positioning pin is inserted into the first pin hole and the second pin hole corresponding to each other.
8. The processing method according to claim 7, characterized in that: The finishing of the outer circle and inner hole of the full ring comprises: Using the end face of the semi-ring blank as a reference, fine-machining the inner hole and outer circle of the full ring; The through hole on the end surface of the full ring is finish-machined.
9. The processing method according to claim 8, characterized in that: The processing method further comprises: Deburring the surfaces of the two arc-shaped structures.
10. The processing method according to claim 9, characterized in that: The processing method further comprises: The surfaces of the two arc-shaped structures are subjected to color flaw detection.