CN112935724A - Brake disc machining process and tool - Google Patents
Brake disc machining process and tool Download PDFInfo
- Publication number
- CN112935724A CN112935724A CN202110156218.6A CN202110156218A CN112935724A CN 112935724 A CN112935724 A CN 112935724A CN 202110156218 A CN202110156218 A CN 202110156218A CN 112935724 A CN112935724 A CN 112935724A
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- limiting plate
- block
- brake disc
- base plate
- substrate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Abstract
The application relates to a brake disc machining process and a brake disc machining tool, wherein the machining process comprises blanking, inner hole turning and inner hole grinding; step (2) blanking: the method comprises the following steps that a plate is placed on a workbench, a round base plate is processed through cutting or blanking, positioning grooves are processed on the periphery of the base plate, and the positioning grooves penetrate through the base plate in the thickness direction of the base plate; turning an inner hole: clamping the substrate at the periphery of the substrate and turning a central hole on the substrate; grinding an inner hole: a plurality of base plates are coaxially overlapped into a group, the positioning grooves in each base plate are communicated with each other, the base plates are arranged on the tool, the grinding wheel rods stretch into the center holes, and the inner peripheries of the center holes are ground. The inner peripheries of a plurality of basic center holes are synchronously ground by using one grinding wheel rod, the grinding efficiency is improved, and the production efficiency of the brake disc is further improved.
Description
Technical Field
The application relates to the field of brake disc machining, in particular to a brake disc machining process and a brake disc machining tool.
Background
A brake is a component in a braking system that generates a braking force that resists movement or a tendency of movement of a vehicle. Automobile brakes, except for various retarders, are almost all friction brakes that generate braking torque by friction between a fixed member and a working surface of a rotating member.
The rotating element in the disk brake friction pair is a disk-shaped brake disk, and the end surface of the disk-shaped brake disk is used as a working surface.
Referring to fig. 1, the brake disc is annular, and a center hole 11 and a mounting hole 12 are formed on the brake disc. Generally, the machining process of the brake disc comprises blanking, machining a central hole, machining a mounting hole and machining a profile structure.
In view of the above related technologies, the inventor thinks that when a center hole is machined, a material is quickly removed through turning and a machining allowance is left, and then finish machining is completed through grinding, so that machining efficiency is low during grinding, and production efficiency of a brake disc is affected.
Disclosure of Invention
In order to improve grinding efficiency and further improve the production efficiency of the brake disc, the application provides a brake disc machining process and a brake disc machining tool.
In a first aspect, the application provides a brake disc machining process, which adopts the following technical scheme:
a brake disc machining process comprises blanking, inner hole turning and inner hole grinding;
step (2) blanking: the method comprises the following steps that a plate is placed on a workbench, a round base plate is processed through cutting or blanking, positioning grooves are processed on the periphery of the base plate, and the positioning grooves penetrate through the base plate in the thickness direction of the base plate;
turning an inner hole: clamping the substrate at the periphery of the substrate and turning a central hole on the substrate;
grinding an inner hole: a plurality of base plates are coaxially overlapped into a group, the positioning grooves in each base plate are communicated with each other, the base plates are arranged on the tool, the grinding wheel rods stretch into the center holes, and the inner peripheries of the center holes are ground.
By adopting the technical scheme, one grinding wheel rod synchronously grinds the inner peripheries of a plurality of basic center holes, so that the grinding efficiency is improved, and the production efficiency of the brake disc is further improved.
Optionally, in the blanking step, a plurality of positioning grooves are processed on the periphery of the substrate and are uniformly distributed along the circumferential direction of the substrate;
the locating groove is provided with three side walls, wherein two opposite side walls of the locating groove along the circumferential direction of the substrate are respectively coplanar with the axis of the substrate, and the rest side wall is a cylindrical surface and is coaxial with the substrate.
By adopting the technical scheme, the positioning of the substrate is completed by utilizing the side wall of the cylindrical surface of the positioning groove so as to determine the position of the axis of the substrate, and a plurality of substrates are coaxially overlapped into a group.
Optionally, in the step of grinding the inner hole, packing paper is arranged between the adjacent substrates.
Through adopting above-mentioned technical scheme, can produce the abrasive dust when grinding the hole, packing paper is filled between two adjacent base plates to utilize packing paper to block the terminal surface that the abrasive dust contacted the base plate.
The second aspect, the application provides a brake disc processing frock adopts following technical scheme:
a brake disc machining tool comprises a base, a limiting plate, a fixing block, a sliding block and a driving assembly;
the limiting plate is connected with the base, the limiting plates correspond to the positioning grooves one by one, one end of each limiting plate is embedded into the positioning groove and enables the limiting plate to be perpendicular to the substrate, and the end face of each limiting plate abuts against the side wall of the positioning groove, which is a cylindrical surface;
the fixed plate is fixedly connected with the limiting plate and is used for abutting against the end face of the substrate;
the sliding block is connected with the limiting plate in a sliding mode, the sliding direction of the sliding block is parallel to the limiting plate, and the sliding block is used for abutting against the end face, away from the fixed block, of the base plate;
the driving component is used for driving the sliding block to abut against the substrate.
Through adopting above-mentioned technical scheme, when grinding the hole, a set of base plate installation to the limiting plate on, the sliding block cooperation fixed block is in order to press from both sides tight base plate to make and support tightly each other between the adjacent base plate.
Optionally, the driving assembly includes a driving block and a transmission component;
the driving block is connected with the limiting plate in a sliding mode, and the sliding direction of the driving block is perpendicular to the limiting plate; the driving block is used for abutting against the side wall of the positioning groove along the circumferential direction of the substrate;
the transmission part is arranged between the driving block and the sliding block, and when the driving block moves towards the direction close to the limiting plate, the transmission part enables the sliding block to move towards the direction close to the fixing block.
Through adopting above-mentioned technical scheme, when grinding the hole, the internal week of the outer periphery grinding centre bore of emery wheel stick, frictional force between emery wheel stick periphery and the internal week of centre bore makes the base plate have the pivoted trend to through the extrusion force between constant head tank lateral wall and the drive block, make the drive block have the trend of being close to the limiting plate, then make sliding block and fixed block further press from both sides tight base plate through drive assembly, so that the laminating between the adjacent base plate more accurate.
Optionally, the drive comprises an articulated lever; one end of the hinged rod is hinged with the driving block, and the other end of the hinged rod is hinged with the sliding block;
hinge axes at two ends of the hinge rod are parallel to each other, and the hinge axis of the hinge rod, the sliding direction of the sliding block and the sliding direction of the driving block are vertical to each other;
an included angle is formed between a connecting line of hinged points at two ends of the hinged rod and the limiting plate; and when the driving block moves towards the direction close to the limiting plate, the included angle is increased.
Through adopting above-mentioned technical scheme, when the drive block removed to being close to the limiting plate direction, the hinge rod made the sliding block remove to being close to the fixed block direction.
Optionally, an included angle between a connecting line of the hinge points at the two ends of the hinge rod and the limiting plate is always an acute angle.
Through adopting above-mentioned technical scheme, the extrusion force of sliding block between to the base plate is greater than the extrusion force of constant head tank lateral wall to the drive block, is favorable to laminating more accurate between the adjacent base plate.
Optionally, the driving assembly further comprises an elastic member, and the elastic member is arranged between the driving block and the limiting plate.
By adopting the technical scheme, when the inner hole is ground, the base plate has a tendency of rotating due to the friction force between the outer periphery of the grinding wheel rod and the inner periphery of the central hole, the driving block extrudes the elastic piece through the extrusion force between the side wall of the positioning groove and the driving block, and the sliding block is driven to move through the hinge rod; after finishing grinding the inner hole, the grinding wheel rod is far away from the base plate, the base plate does not have a rotating trend, then the elastic force of the elastic piece pushes the driving block to reset, and the sliding block is reset through the hinge rod, so that a group of base plates after being processed can be taken down conveniently, and a next group of base plates after being processed can be prepared for installation.
Optionally, a liquid storage cavity is arranged in the elastic part, a through hole is formed in the elastic part, the through hole is communicated with the liquid storage cavity and penetrates through the elastic part, and the communicating hole faces the substrate.
Through adopting above-mentioned technical scheme, the stock solution intracavity can be stored grinding fluid, and during the hole of grinding, the frictional force between emery wheel stick periphery and the centre bore inner periphery makes the base plate have the pivoted trend to through the extrusion force between constant head tank lateral wall and the driving block, make the driving block extrusion elastic component, then partial grinding fluid is followed the through-hole and is gone out to ooze and flow along the clearance between two adjacent base plates, and grinding fluid flows to between emery wheel stick periphery and the centre bore inner periphery.
In summary, the present application includes at least one of the following beneficial technical effects:
1. one grinding wheel rod synchronously grinds the inner peripheries of a plurality of basic center holes, so that the grinding efficiency is improved, and the production efficiency of the brake disc is further improved;
2. when grinding the hole, the inner periphery of the outer periphery grinding centre bore of emery wheel stick, frictional force between emery wheel stick periphery and the centre bore inner periphery makes the base plate have the pivoted trend to through the extrusion force between constant head tank lateral wall and the driving block, make the driving block have the trend of being close to the limiting plate, then make sliding block and fixed block further press from both sides tight base plate through drive disk assembly, so that the laminating between the adjacent base plate more accurate.
Drawings
Fig. 1 is a schematic structural view of a brake disc.
Fig. 2 is a schematic structural view of a substrate.
Fig. 3 is a schematic view of the overall structure of the tool.
Fig. 4 is a schematic structural view of two clamping mechanisms.
FIG. 5 is a schematic view of the machining of the milled inner bore.
Fig. 6 is a schematic view of a single clamping mechanism showing the drive assembly.
Fig. 7 is a schematic structural view of a single clamping mechanism for showing the elastic member.
Fig. 8 is a sectional view of the elastic member.
Description of reference numerals: 11. a central bore; 12. mounting holes; 21. a substrate; 22. positioning a groove; 23. packing paper;
3. a base; 4. mounting a rod; 41. a thick rod; 42. a thin rod; 5. a clamping mechanism; 51. a limiting plate; 511. a fixing hole; 512. a dovetail groove; 52. a fixed block; 53. a sliding block; 54. a drive assembly; 541. a drive block; 542. an elastic member; 5421. a liquid storage cavity; 5422. a through hole; 543. a transmission member; 5431. connecting blocks; 5432. an ear plate; 5433. a hinged lever.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
Referring to fig. 1, the brake disc is annular, and a center hole 11 and a mounting hole 12 are formed on the brake disc.
The embodiment of the application discloses a brake disc machining process.
The brake disc machining process comprises blanking, inner hole turning, inner hole grinding, mounting hole drilling and end face grinding.
The method comprises the following steps: and (6) blanking. Referring to fig. 2, a plate is placed on a workbench, a circular base plate 21 is processed by laser cutting or blanking, two positioning grooves 22 symmetrical with respect to the axis of the base plate 21 are processed on the periphery of the base plate 21, and the positioning grooves 22 penetrate through the base plate 21 in the thickness direction of the base plate 21; meanwhile, the positioning groove 22 has three side walls, wherein two side walls of the positioning groove 22 opposite to each other in the circumferential direction of the base plate 21 are coplanar with the axis of the base plate 21, and the remaining one side wall is a cylindrical surface and is coaxial with the base plate 21.
Step two: and (6) lathing an inner hole. Is clamped to the outer periphery of the base plate 21, and a center hole 11 is cut in the base plate 21.
Step three: and (5) grinding an inner hole. Referring to fig. 3, a plurality of substrates 21 are coaxially stacked into one set, and packing paper 23 is interposed between adjacent substrates 21; aligning the positioning grooves 22 on the adjacent substrates 21, and mounting a group of substrates 21 on the tool; the tool is mounted on the grinding machine, the grinding wheel rod penetrates through the central holes 11 of all the base plates 21, and the inner peripheries of all the central holes 11 are synchronously ground by the outer peripheries of the grinding wheel rod.
Step four: and drilling a mounting hole. Referring to fig. 1 and 2, five mounting holes 12 are formed at intervals in a substrate 21.
Step five: and (5) grinding the end face. Both end faces of the substrate 21 are ground so that the end faces are flat.
The embodiment of the application also discloses a brake disc processing tool, which is applied to the step grinding inner hole.
Referring to fig. 3, the brake disc machining tool includes a base 3, a mounting rod 4, and a clamping mechanism 5.
The base 3 is used for being mounted on a grinding machine, and four mounting rods 4 are arranged on the upper end face of the base 3; the mounting rod 4 is vertically arranged and is used for connecting the clamping mechanism 5; the two clamping mechanisms 5 are used for matching with the two positioning grooves 22 on the substrate 21 to clamp a group of substrates 21; two clamping mechanisms 5 are distributed in the horizontal direction, and each clamping mechanism 5 is connected to two mounting rods 4.
Each mounting rod 4 comprises a thick rod 41 and a thin rod 42 which are coaxially arranged; the thin rod 42 has a diameter smaller than that of the thick rod 41, and the thin rod 42 is connected to the upper end of the thick rod 41. Each fixture 5 includes a limiting plate 51 horizontally disposed, and the limiting plate 51 is embedded into the positioning groove 22 toward one end of another fixture 5, and at this time, the axis of the substrate 21 is horizontal.
Referring to fig. 3 and 4, two fixing holes 511 are arranged on the limiting plate 51 at intervals, and the fixing holes 511 penetrate through the limiting plate 51 in the vertical direction; the two fixing holes 511 correspond to the two thin rods 42 one by one, so that the limiting plate 51 is sleeved on the periphery of the thin rods 42, and the lower end surface of the limiting plate 51 abuts against the upper end surface of the thick rod 41. Meanwhile, in the process of grinding the inner hole, a nut may be screwed on the outer circumference of the slender rod 42 to prevent the limiting plate 51 from moving upward and separating from the slender rod 42.
The two clamping mechanisms 5 are centrosymmetric about the axis of the substrate 21, and each clamping mechanism 5 further comprises a fixed block 52, a sliding block 53 and a driving assembly 54.
The fixed block 52 is fixedly connected with the limit plate 51; the sliding block 53 is connected with the limit plate 51 in a sliding way along the direction parallel to the axis of the base plate 21; the group of substrates 21 are mounted on the limiting plate 51 and located between the fixed block 52 and the sliding block 53, and at this time, the driving assembly 54 drives the sliding block 53 to approach the fixed block 52 to abut against the substrates 21, so that the substrates 21 press the packing paper 23.
In this embodiment, the limiting plate 51 is provided with a dovetail groove 512, the extending direction of the dovetail groove 512 is parallel to the axis of the substrate 21, and the dovetail groove 512 only penetrates through one end of the limiting plate 51, that is, one end of the dovetail groove 512 in the extending direction is an opening, and the other end of the dovetail groove 512 in the extending direction is closed. One end of the fixed block 52 and one end of the sliding block 53 are both slidably embedded in the dovetail groove 512, and the fixed block 52 is located on one side of the sliding block 53, which is away from the opening in the extending direction of the dovetail groove 512.
Referring to fig. 4, the driving assembly 54 includes a driving block 541, an elastic member 542, and a transmission block 543. The driving block 541 is connected with the limiting plate 51 in a sliding manner along the vertical direction, and the end part of the driving block 541 facing the other clamping mechanism 5 is embedded into the positioning groove 22; the elastic member 542 is disposed between the driving block 541 and the limiting plate 51, and the elastic member 542 is also embedded in the positioning groove 22; meanwhile, one end of the elastic member 542 is connected with the driving block 541 by means of adhesion, and the other end of the elastic member 542 is connected with the limiting plate 51 by means of adhesion; the transmission unit 543 is connected between the driving block 541 and the sliding block 53.
The end face of the driving block 541 departing from the limiting plate 51 and the end face of the limiting plate 51 departing from the driving block 541 are respectively abutted against two opposite side walls of the positioning groove 22 along the circumferential direction of the substrate 21; the end surface of the driving block 541 facing the other clamping mechanism 5 and the end surface of the limiting plate 51 facing the other clamping mechanism 5 are both set to be cylindrical surfaces, and the cylindrical surfaces are attached to the cylindrical surface side walls of the positioning grooves 22.
Referring to fig. 5, in the process of grinding the inner hole, the grinding wheel bar rotates about its axis in the direction of arrow a in the drawing, and at the same time, the grinding wheel bar rotates about the axis of the base plate 21 in the direction of arrow B in the drawing, and grinds the inner periphery of the center hole 11 with the outer periphery of the grinding wheel bar. In this process, the friction force of the grinding wheel stick to the substrate 21 is transmitted to the driving block 541 through the substrate 21, and the driving block 541 presses the elastic member 542, so that the elastic member 542 is elastically deformed.
Referring to fig. 4 and 6, when the driving block 541 moves toward the position-limiting plate 51 and presses the elastic member 542, the transmission member 543 causes the sliding block 53 to further abut against the substrate 21. The transmission member 543 includes a connecting block 5431, an ear plate 5432, and a hinge rod 5433.
The end of the driving block 541 departing from the other clamping mechanism 5 extends out of the positioning groove 22, and the connecting block 5431 is fixedly connected to the upper end of one end of the driving block 541 extending out of the positioning groove 22; the ear plate 5432 is fixedly connected to the end of the sliding block 53 facing the fixed block 52; one end of the hinge rod 5433 is connected to the connecting block 5431 by a ball hinge, the other end of the hinge rod 5433 is hinged to the ear plate 5432, and the hinge axis between the hinge rod 5433 and the ear plate 5432 is horizontal and vertical to the axis of the base plate 21.
An included angle exists between a connecting line of hinged points at two ends of the hinged rod 5433 and the horizontal plane, and the included angle is increased along with the driving block 541 approaching the limiting plate 51; meanwhile, the included angle is always an acute angle.
In this example, the whole hinge rod 5433 is located at one side of the limit plate 51, and the distance from the spherical hinge between the hinge rod 5433 and the connecting block 5431 to the limit plate 51 is smaller than the distance from the hinge between the hinge rod 5433 and the ear plate 5432 to the limit plate 51.
Referring to fig. 7 and 8, a liquid storage cavity 5421 is formed in the elastic member 542, and the liquid storage cavity 5421 is used for storing grinding liquid; the elastic member 542 is further provided with a through hole 5422, the through hole 5422 is communicated with the liquid storage cavity 5421 and penetrates through the elastic member 542, and the through hole 5422 faces to the other clamping mechanism 5. In this embodiment, the elastic member 542 may be a rubber strip, and the rubber strip has a liquid storage cavity 5421 and a through hole 5422. In other embodiments, the elastic member 542 can be made of porous material such as sponge, and the pores in the sponge are connected to form the reservoir 5421 and the through hole 5422.
When the driving block 541 presses the elastic member 542, the volume of the liquid storage cavity 5421 is reduced, the grinding liquid seeps out through the through hole 5422, the grinding liquid flows onto the base plates 21 and seeps between two adjacent base plates 21 from the packing paper 23, and finally, the grinding liquid flows between the outer periphery of the grinding wheel stick and the inner periphery of the central hole 11.
The implementation principle of a brake disc processing frock of the embodiment of this application does: in the process of grinding the inner hole, the friction force of the grinding wheel rod on the substrate 21 is pushed to be transmitted to the driving block 541 through the substrate 21, the driving block 541 extrudes the elastic piece 542, the elastic piece 542 is elastically deformed, and at the moment, the transmission part 543 enables the sliding block 53 to further abut against the substrate 21, so that the adjacent substrates 21 are attached more precisely.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A brake disc machining process is characterized by comprising blanking, turning an inner hole and grinding the inner hole;
step (2) blanking: the method comprises the following steps that a plate is placed on a workbench, a round base plate (21) is processed through cutting or blanking, positioning grooves (22) are processed on the periphery of the base plate (21), and the positioning grooves (22) penetrate through the base plate (21) along the thickness direction of the base plate (21);
turning an inner hole: a center hole (11) which is clamped on the periphery of the substrate (21) and is turned on the substrate (21);
grinding an inner hole: the base plates (21) are coaxially overlapped into a group, the positioning grooves (22) on each base plate (21) are communicated with each other, the base plates (21) are arranged on the tool, the grinding wheel rod extends into the center holes (11), and the inner peripheries of the center holes (11) on the base plates (21) are ground.
2. Process for machining a brake disc according to claim 1, characterized in that: in the step of blanking, a plurality of positioning grooves (22) are machined in the periphery of a substrate (21), and the positioning grooves (22) are uniformly distributed along the circumferential direction of the substrate (21);
the positioning groove (22) is provided with three side walls, wherein two side walls of the positioning groove (22) opposite to each other along the circumferential direction of the base plate (21) are respectively coplanar with the axis of the base plate (21), and the rest one side wall is a cylindrical surface and is coaxial with the base plate (21).
3. Process for machining a brake disc according to claim 1, characterized in that: in the step of grinding the inner hole, packing paper (23) is arranged between adjacent substrates (21).
4. The utility model provides a brake disc processing frock which characterized in that: comprises a base (3), a limit plate (51), a fixed block (52), a sliding block (53) and a driving component (54);
the limiting plate (51) is connected with the base (3), the limiting plate (51) corresponds to the positioning grooves (22) one by one, one end of the limiting plate (51) is embedded into the positioning grooves (22) and enables the limiting plate (51) to be perpendicular to the substrate (21), and the end face of the limiting plate (51) abuts against the side wall of the cylindrical surface of the positioning grooves (22);
the fixed plate is fixedly connected with the limiting plate (51), and the fixed block (52) is used for abutting against the end face of the substrate (21);
the sliding block (53) is connected with the limiting plate (51) in a sliding mode, the sliding direction of the sliding block (53) is parallel to the limiting plate (51), and the sliding block (53) is used for being abutted to the end face, away from the fixing block (52), of the base plate (21);
the driving component (54) is used for driving the sliding block (53) to abut against the substrate (21).
5. The brake disc machining tool according to claim 4, characterized in that: the driving component (54) comprises a driving block (541) and a transmission part (543);
the driving block (541) is connected with a limiting plate (51) in a sliding mode, and the sliding direction of the driving block (541) is perpendicular to the limiting plate (51); the driving block (541) is used for abutting against the side wall of the positioning groove (22) along the circumferential direction of the substrate (21);
the transmission component (543) is arranged between the driving block (541) and the sliding block (53), and when the driving block (541) moves towards the direction close to the limiting plate (51), the transmission component (543) enables the sliding block (53) to move towards the direction close to the fixing block (52).
6. The brake disc machining tool according to claim 5, characterized in that: the transmission comprises a hinge lever (5433); one end of the hinge rod (5433) is hinged with the driving block (541), and the other end of the hinge rod (5433) is hinged with the sliding block (53);
hinge axes at two ends of the hinge rod (5433) are parallel to each other, and the hinge axis of the hinge rod (5433), the sliding direction of the sliding block (53) and the sliding direction of the driving block (541) are vertical to each other;
an included angle is formed between a connecting line of hinged points at two ends of the hinged rod (5433) and the limiting plate (51); and when the driving block (541) moves towards the direction close to the limit plate (51), the included angle is increased.
7. The brake disc machining tool according to claim 6, characterized in that: and an included angle between a connecting line of hinged points at two ends of the hinged rod (5433) and the limiting plate (51) is always an acute angle.
8. The brake disc machining tool according to claim 5, characterized in that: the driving assembly (54) further comprises an elastic piece (542), and the elastic piece (542) is arranged between the driving block (541) and the limiting plate (51).
9. The brake disc machining tool according to claim 8, characterized in that: be equipped with stock solution chamber (5421) in elastic component (542), be equipped with through-hole (5422) on elastic component (542), through-hole (5422) intercommunication stock solution chamber (5421) and run through elastic component (542), just intercommunicating hole (5422) are towards base plate (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110156218.6A CN112935724B (en) | 2021-02-04 | 2021-02-04 | Brake disc machining process and tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110156218.6A CN112935724B (en) | 2021-02-04 | 2021-02-04 | Brake disc machining process and tool |
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| CN112935724A true CN112935724A (en) | 2021-06-11 |
| CN112935724B CN112935724B (en) | 2022-06-24 |
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| CN113814666A (en) * | 2021-10-13 | 2021-12-21 | 重庆江增船舶重工有限公司 | Milling method for oil wedge on end surface of floating disc |
| CN116100431A (en) * | 2023-03-10 | 2023-05-12 | 中科艾尔(北京)科技有限公司 | Adjustable basic block grinding device |
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|---|---|
| CN112935724B (en) | 2022-06-24 |
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