CN111571435A - double-V-shaped floating self-aligning supporting structure and machining method of middle supporting block of double-V-shaped floating self-aligning supporting structure - Google Patents
double-V-shaped floating self-aligning supporting structure and machining method of middle supporting block of double-V-shaped floating self-aligning supporting structure Download PDFInfo
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- CN111571435A CN111571435A CN202010447304.8A CN202010447304A CN111571435A CN 111571435 A CN111571435 A CN 111571435A CN 202010447304 A CN202010447304 A CN 202010447304A CN 111571435 A CN111571435 A CN 111571435A
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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
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
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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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
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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
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
A double-V-shaped floating self-aligning supporting structure comprises two supporting frame combinations and an arc-shaped positioning seat, wherein the two supporting frame combinations are fixed on the arc-shaped positioning seat of a grinding machine through bolts; the support frame assembly comprises a support frame, a support seat and a support head; the supporting seat is movably connected with the supporting frame through the adjusting screw; the supporting head is rotationally connected with the supporting seat through a pin; the supporting head comprises a supporting block, and the supporting block adopts polycrystalline diamond PCD or polycrystalline pure diamond CVD; the processing method of the supporting block adopts an ultraviolet laser to scan and ablate, and the wedge groove of the array microstructure is ablated on the upper surface of the supporting block; the double-V-shaped floating self-aligning support structure ensures the processing precision of the bearing ring, and simultaneously solves the obvious appearance defects of mottling, uneven local color and the like generated by the phosphating film on the outer diameter surface during the grinding of the raceway of the bearing ring in the prior art, thereby ensuring the appearance quality of the bearing to meet the requirements of customers.
Description
Technical Field
The invention relates to the technical field of grinding of railway bearings, in particular to a double-V-shaped floating self-aligning supporting structure and a processing method of a middle supporting block of the double-V-shaped floating self-aligning supporting structure.
Background
Due to the special requirements of railway bearing products, the outer diameter of a bearing ring needs to be subjected to phosphating treatment, but a phosphating film is not allowed to exist on the surface of a raceway; the existing processing method is that the surface of the whole bearing ring is firstly phosphorized, and then the phosphorized outer diameter surface is used as a supporting surface to grind and process a phosphorized film on a raceway; however, the existing supporting structure for grinding the bearing ring adopts a hard alloy fixed supporting structure, and the structure is that two hard alloy supporting blocks with an angle of 120 degrees or 150 degrees are welded on a supporting seat to support the outer diameter surface of the bearing ring; in the using process of the supporting structure, along with the increase of the number of the processed bearing rings, the supporting surface of the supporting block is gradually abraded into an arc curved surface from a plane at the beginning, so that the eccentric amount of the supported bearing ring is changed, and if the supporting surface is not adjusted in time, the grinding amount of a ring raceway is changed, so that the processing precision of the bearing ring is influenced; meanwhile, in the grinding process of the bearing ring, the outer diameter surface of the bearing ring can leave a trace of bearing friction, so that the outer diameter phosphating film of the bearing ring has obvious appearance defects such as mottling, uneven local color and the like, and the appearance quality of the bearing can not meet the requirements of customers.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a double-V-shaped floating self-aligning supporting structure; the grinding machine comprises two support frame combinations and an arc-shaped positioning seat, wherein the two support frame combinations are fixed on the arc-shaped positioning seat of the grinding machine through bolts; the support frame assembly comprises a support frame, a support seat and a support head; the supporting frame is rotatably provided with an adjusting screw, and the supporting seat is movably connected with the supporting frame through the adjusting screw; the supporting head is rotationally connected with the supporting seat through a pin; when the support frame assembly is actually used, the position of the support seat is adjusted by rotating the adjusting screw, and the support seat is fixedly connected with the support frame through the support seat locking bolt; the supporting head comprises a supporting head substrate, a supporting head V-shaped block and a supporting block, wherein the supporting block is polycrystalline diamond (PCD) or polycrystalline pure diamond (CVD); the support head V-shaped block is fixedly arranged on the upper part of the support head base body, a V-shaped groove is formed in the upper part of the support head V-shaped block, and the support block is fixedly arranged on the upper surface of the V-shaped groove; when the bearing ring is ground, the supporting blocks fixedly arranged on the upper surface of the V-shaped groove are supported on the outer diameter surface of the bearing ring in a floating mode, so that each supporting block is stressed more uniformly, the abrasion of the supporting blocks is greatly improved, and the processing precision of the bearing ring is guaranteed; meanwhile, the supporting block is made of polycrystalline diamond (PCD) or polycrystalline pure diamond (CVD) and has an extremely low friction coefficient compared with a hard alloy material, so that the supporting friction trace on the outer diameter surface of the bearing ring is greatly improved, and the obvious appearance defects of mottling, uneven local color and the like of the phosphating film on the outer diameter of the bearing ring in the past are overcome, so that the appearance quality of the bearing meets the customer requirements.
In order to realize the purpose, the invention adopts the following technical scheme: a double-V-shaped floating self-aligning supporting structure comprises two supporting frame combinations and an arc-shaped positioning seat, wherein the two supporting frame combinations are fixed on the arc-shaped positioning seat of a grinding machine through bolts to form a double-supporting structure for grinding a raceway of a bearing ring;
the support frame assembly comprises a support frame, a support seat and a support head; the supporting frame is rotatably provided with an adjusting screw, and the supporting seat is movably connected with the supporting frame through the adjusting screw; the supporting head is rotationally connected with the supporting seat through a pin, and the supporting head rotates around the pin to form a floating self-aligning supporting structure; when the support frame assembly is actually used, the support seat is moved by rotating the adjusting screw, the support seat drives the support head to move, and finally the support head is adjusted to a proper position; after the supporting head is adjusted in place, the supporting seat is fixedly connected with the supporting frame by screwing the supporting seat locking bolt, and finally the position of the supporting head is locked;
the supporting head comprises a supporting head base body, a supporting head V-shaped block and a supporting block; the support head V-shaped block is fixedly arranged on the upper portion of the support head base body, a V-shaped groove is formed in the upper portion of the support head V-shaped block, and the support block is fixedly arranged on the upper surface of the V-shaped groove.
Furthermore, the supporting blocks are arranged in a split manner, and four supporting blocks are symmetrically arranged; the purpose of adopting the components of a whole that can function independently to set up the supporting shoe is in order to reduce the area at supporting shoe top, under the prerequisite that satisfies supporting bearing ring grinding raceway processing, reduces the processing work load and the degree of difficulty at supporting shoe top, has also reduced the supporting shoe volume simultaneously, has reduced the cost of supporting shoe.
Furthermore, the supporting block comprises a supporting block substrate and a supporting body, and the supporting block substrate and the supporting body are fixedly connected into a whole; the supporting block substrate is fixedly connected with the V-shaped block of the supporting head through brazing welding.
Furthermore, the support body is made of polycrystalline diamond (PCD) and is fixedly connected with the support block substrate through sintering.
Preferably, the support body material is polycrystalline pure diamond CVD grown on the support block substrate surface by chemical vapor deposition.
The support body is made of polycrystalline diamond PCD or polycrystalline pure diamond CVD materials, has extremely high hardness and extremely low friction coefficient, the hardness of the support body is 80-120 times of that of the hard alloy, and the friction coefficient of the support body is only 1/3-1/4 of that of the hard alloy, so that under the action of the same supporting force, the service life of the support body is prolonged by about 100 times, and the friction force is only 1/3-1/4 of that of the hard alloy; therefore, the support body made of polycrystalline diamond PCD or polycrystalline pure diamond CVD materials is used, the processing precision of the bearing ring is guaranteed, and meanwhile the appearance quality of the outer diameter surface of the bearing ring is greatly improved.
Furthermore, wedge grooves of the array microstructure are arranged on the upper surface of the support body, and the intersection angles of the wedge grooves and the upper surface of the support body are provided with R angles; the purpose of arranging the array microstructure wedge grooves on the upper surface of the support body is to further reduce the friction force between the bearing ring and the support body; during the grinding process of the bearing ring raceway, a large amount of emulsion needs to be sprayed, and the emulsion acts between the support body and the outer diameter surface of the bearing ring to form a lubricating film; in the process of grinding and processing the raceway of the bearing ring, along with the rotation of the bearing ring, the clearance between the outer diameter surface of the bearing ring and the support body is gradually reduced, the rigidity of the lubricating film is gradually improved, and the bearing ring is lubricated to a certain extent; the support body supports the outer diameter surface of the bearing ring, theoretically, the outer diameter surface of the bearing ring is in line contact, but actually is in surface contact, when the upper surface of the support body is provided with the wedge grooves with the array microstructures, a plurality of wedge grooves are formed between the outer diameter surface of the bearing ring and the contact surface of the support body, emulsion is stored in the wedge grooves, and along with the rotation of the bearing ring, the emulsion stored in the wedge grooves can form a lubricating film with higher rigidity, so that the lubricating effect between the bearing ring and the support body is further improved, the original dry friction between the outer diameter surface of the bearing ring and the support body is converted into mixed friction, and the aim of further reducing the friction force between the bearing ring and the support body is fulfilled; the purpose that the intersection angle of the wedge groove and the upper surface of the support body is provided with the R angle is to prevent the intersection angle of the wedge groove and the upper surface of the support body from having a sharp angle, so that the outer diameter surface of the bearing is prevented from being scratched.
A method for processing a supporting block is characterized in that wedge grooves and an R angle of a supporting block array microstructure are completed through the following processing processes:
s1, processing the upper surface of the supporting block: grinding the upper surface of the supporting block by using diamond grinding paste to ensure that the surface roughness of the supporting block reaches Ra0.03 microns or less; the smaller the roughness of the upper surface of the supporting block is, the smaller the friction coefficient between the supporting block and the outer diameter surface of the bearing is, so that the friction force between the supporting block and the outer diameter surface of the bearing can be greatly reduced;
s2, wedge groove processing of the supporting block array microstructure: scanning and ablating the upper surface of the ground supporting block by using an ultraviolet laser to generate an inclined slope with continuously changed height, and finally generating a wedge groove of the array microstructure; the single-pulse ablation depth of the ultraviolet laser is only dozens of nanometers, and the upper surface of the supporting block is repeatedly scanned, so that a smooth inclined surface with continuously changed height can be obtained;
s3, R angle processing: a circular pig hair brush is used for rotationally grinding the upper surface of the supporting block, and the rotating direction of the circular pig hair brush is opposite to the direction of the wedge groove; diamond grinding paste is used in a matching way in the grinding process; when using circular pig brush to grind the supporting shoe upper surface, because of wedge groove and supporting shoe upper surface crossing angle are most outstanding, therefore the brush is the biggest to crossing angle department effort, and after circular pig brush cooperation diamond grinding paste ground, wedge groove and supporting shoe upper surface crossing angle department form the R angle naturally, and in actual processing, whether the suitable standard of judgement R angle is: the finger pad can slide on the upper surface of the supporting block at will, and the finger pad has no scraping feeling; the round pig hair brush is used for grinding for a long time, so that the pig hair cannot be bent and deformed, and a better grinding effect is achieved.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the invention discloses a double-V-shaped floating self-aligning supporting structure; the grinding machine comprises two support frame combinations and an arc-shaped positioning seat, wherein the two support frame combinations are fixed on the arc-shaped positioning seat of the grinding machine through bolts; the support frame assembly comprises a support frame, a support seat and a support head; the supporting frame is rotatably provided with an adjusting screw, and the supporting seat is movably connected with the supporting frame through the adjusting screw; the supporting head is rotationally connected with the supporting seat through a pin; when the support frame assembly is actually used, the position of the support seat is adjusted by rotating the adjusting screw, and the support seat is fixedly connected with the support frame through the support seat locking bolt; the supporting head comprises a supporting head substrate, a supporting head V-shaped block and a supporting block, wherein the supporting block is polycrystalline diamond (PCD) or polycrystalline pure diamond (CVD); the support head V-shaped block is fixedly arranged on the upper part of the support head base body, a V-shaped groove is formed in the upper part of the support head V-shaped block, and the support block is fixedly arranged on the upper surface of the V-shaped groove; when the bearing ring is ground, the supporting blocks fixedly arranged on the upper surface of the V-shaped groove are supported on the outer diameter surface of the bearing ring in a floating mode, so that each supporting block is stressed more uniformly, the abrasion of the supporting blocks is greatly improved, and the processing precision of the bearing ring is guaranteed; meanwhile, the supporting block is made of polycrystalline diamond (PCD) or polycrystalline pure diamond (CVD) and has an extremely low friction coefficient compared with a hard alloy material, so that the supporting friction trace on the outer diameter surface of the bearing ring is greatly improved, and the obvious appearance defects of mottling, uneven local color and the like of the phosphating film on the outer diameter of the bearing ring in the past are overcome, so that the appearance quality of the bearing meets the customer requirements.
Drawings
FIG. 1 is a schematic view of a double V-shaped floating self-aligning support structure;
FIG. 2 is a first schematic view of the support head;
FIG. 3 is a second schematic view of the support head structure;
FIG. 4 is an enlarged view of part A;
FIG. 5 is a schematic view of a support block microstructure;
FIG. 6 is a schematic view of the R corner of the support block.
In the figure: 1. a support frame; 2. a supporting seat; 3. a support head; 3.1, supporting the head substrate; 3.2, supporting the head V-shaped block; 3.3, supporting blocks; 3.3.1, supporting the block base; 3.3.2, a support body; 3.3.3, wedge groove; 3.3.4, angle R; 4. adjusting the screw; 5. a pin; 6. a bearing; 7. an arc-shaped positioning seat; 8. the support seat locks the bolt; 9. an emulsion; 10. round pig hair brush.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
A double-V-shaped floating self-aligning supporting structure comprises two supporting frame combinations and an arc-shaped positioning seat 7, wherein the two supporting frame combinations are fixed on the arc-shaped positioning seat 7 of a grinding machine through bolts; the support frame assembly comprises a support frame 1, a support seat 2 and a support head 3; the supporting frame 1 is rotatably provided with an adjusting screw 4, and the supporting seat 2 is movably connected with the supporting frame 1 through the adjusting screw 4; the supporting head 3 is rotationally connected with the supporting seat 2 through a pin 5; when the support frame is combined for practical use, the position of the support seat 2 is adjusted by rotating the adjusting screw 4, and the support frame 1 is fixedly connected with the support seat locking bolt 8; the supporting head 3 comprises a supporting head base body 3.1, a supporting head V-shaped block 3.2 and a supporting block 3.3; the support head V-shaped block 3.2 is fixedly arranged on the upper part of the support head base body 3.1, a V-shaped groove is arranged on the upper part of the support head V-shaped block 3.2, and the support block 3.3 is fixedly arranged on the upper surface of the V-shaped groove; four support blocks 3.3 are symmetrically arranged; the supporting block 3.3 comprises a supporting block base 3.3.1 and a supporting body 3.3.2, and the supporting block base 3.3.1 and the supporting body 3.3.2 are fixedly connected into a whole; the supporting block substrate 3.3.1 is fixedly connected with the supporting head V-shaped block 3.2 through brazing welding; the support body 3.3.2 is made of polycrystalline diamond PCD and is fixedly connected with the support block substrate 3.3.1 through sintering; the upper surface of the support body 3.3.2 is provided with wedge grooves 3.3.3 of the array microstructure, and the intersection angles of the wedge grooves 3.3.3 and the upper surface of the support body 3.3.2 are provided with R angles 3.3.4.
A double-V-shaped floating self-aligning supporting structure comprises two supporting frame combinations and an arc-shaped positioning seat 7, wherein the two supporting frame combinations are fixed on the arc-shaped positioning seat 7 of a grinding machine through bolts; the support frame assembly comprises a support frame 1, a support seat 2 and a support head 3; the supporting frame 1 is rotatably provided with an adjusting screw 4, and the supporting seat 2 is movably connected with the supporting frame 1 through the adjusting screw 4; the supporting head 3 is rotationally connected with the supporting seat 2 through a pin 5; when the support frame is combined for practical use, the position of the support seat 2 is adjusted by rotating the adjusting screw 4, and the support frame 1 is fixedly connected with the support seat locking bolt 8; the supporting head 3 comprises a supporting head base body 3.1, a supporting head V-shaped block 3.2 and a supporting block 3.3; the support head V-shaped block 3.2 is fixedly arranged on the upper part of the support head base body 3.1, a V-shaped groove is arranged on the upper part of the support head V-shaped block 3.2, and the support block 3.3 is fixedly arranged on the upper surface of the V-shaped groove; four support blocks 3.3 are symmetrically arranged; the supporting block 3.3 comprises a supporting block base 3.3.1 and a supporting body 3.3.2, and the supporting block base 3.3.1 and the supporting body 3.3.2 are fixedly connected into a whole; the supporting block substrate 3.3.1 is fixedly connected with the supporting head V-shaped block 3.2 through brazing welding; the support body 3.3.2 is made of polycrystalline pure diamond CVD which grows on the surface of the support block substrate 3.3.1 through chemical vapor deposition; the upper surface of the support body 3.3.2 is provided with wedge grooves 3.3.3 of the array microstructure, and the intersection angles of the wedge grooves 3.3.3 and the upper surface of the support body 3.3.2 are provided with R angles 3.3.4.
The wedge grooves 3.3.3 and the R angles 3.3.4 of the supporting block 3.3 array microstructure are completed through the following processing procedures:
s1, processing the upper surface of the supporting block 3.3: grinding the upper surface of the supporting block 3.3 by using diamond grinding paste to ensure that the surface roughness of the supporting block is less than Ra0.03 microns;
s2, processing wedge grooves 3.3.3 of the supporting block 3.3 array microstructure: scanning and ablating the upper surface of the ground supporting block 3.3 by using an ultraviolet laser to generate an inclined slope with continuously changed height, and finally generating a wedge groove 3.3.3 of the array microstructure;
s3, R angle 3.3.4 processing: the circular pig hair brush 10 is used for rotary grinding on the upper surface of the supporting block 3.3, and the rotating direction of the circular pig hair brush 10 is opposite to the direction of the wedge groove 3.3.3; the diamond polishing paste is used in combination during the polishing process.
The present invention is not described in detail in the prior art.
Claims (7)
1. The utility model provides a two V types float from aligning bearing structure which characterized by: the grinding machine support frame assembly comprises two support frame assemblies and an arc-shaped positioning seat (7), wherein the two support frame assemblies are fixed on the arc-shaped positioning seat (7) of the grinding machine through bolts;
the support frame assembly comprises a support frame (1), a support seat (2) and a support head (3); the supporting frame (1) is rotatably provided with an adjusting screw (4), and the supporting seat (2) is movably connected with the supporting frame (1) through the adjusting screw (4); the supporting head (3) is rotationally connected with the supporting seat (2) through a pin (5); when the support frame assembly is actually used, the position of the supporting seat (2) is adjusted by rotating the adjusting screw (4), and the supporting seat is fixedly connected with the support frame (1) by the supporting seat locking bolt (8);
the supporting head (3) comprises a supporting head base body (3.1), a supporting head V-shaped block (3.2) and a supporting block (3.3); the support head V-shaped block (3.2) is fixedly arranged on the upper portion of the support head base body (3.1), a V-shaped groove is formed in the upper portion of the support head V-shaped block (3.2), and the support block (3.3) is fixedly arranged on the upper surface of the V-shaped groove.
2. The double-V-shaped floating self-aligning support structure as claimed in claim 1, wherein: four supporting blocks (3.3) are symmetrically arranged.
3. The double-V-shaped floating self-aligning support structure as claimed in claim 1, wherein: the supporting block (3.3) comprises a supporting block substrate (3.3.1) and a supporting body (3.3.2), and the supporting block substrate (3.3.1) and the supporting body (3.3.2) are fixedly connected into a whole; the supporting block base (3.3.1) is fixedly connected with the supporting head V-shaped block (3.2) through welding.
4. The double-V-shaped floating self-aligning support structure as claimed in claim 3, wherein: the support body (3.3.2) is made of polycrystalline diamond (PCD) and is fixedly connected with the support block substrate (3.3.1) through sintering.
5. The double-V-shaped floating self-aligning support structure as claimed in claim 3, wherein: the material of the supporting body (3.3.2) is polycrystalline pure diamond CVD which grows on the surface of the supporting block substrate (3.3.1) through chemical vapor deposition.
6. The double-V-shaped floating self-aligning support structure as claimed in claim 3, wherein: the upper surface of the support body (3.3.2) is provided with wedge grooves (3.3.3) of an array microstructure, and the intersection angles of the wedge grooves (3.3.3) and the upper surface of the support body (3.3.2) are provided with R angles (3.3.4).
7. A method of forming a support block as claimed in claim 6, wherein: the wedge groove (3.3.3) and the R angle (3.3.4) of the supporting block (3.3) array microstructure are finished by the following processing procedures:
s1, processing the upper surface of the supporting block (3.3): the upper surface of the supporting block (3.3) is ground by diamond grinding paste, so that the surface roughness of the supporting block reaches Ra0.03 microns or less;
s2, processing of the supporting block (3.3) array microstructure wedge groove (3.3.3): scanning and ablating the upper surface of the ground supporting block (3.3) by using an ultraviolet laser to generate an inclined slope with continuously changed height, and finally generating a wedge groove (3.3.3) of the array microstructure;
s3, processing of an R angle (3.3.4): a circular pig hair brush (10) is used for rotary grinding on the upper surface of the supporting block (3.3), and the rotating direction of the circular pig hair brush (10) is opposite to the direction of the wedge groove (3.3.3); the diamond polishing paste is used in combination during the polishing process.
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| CN202010447304.8A CN111571435A (en) | 2020-05-25 | 2020-05-25 | double-V-shaped floating self-aligning supporting structure and machining method of middle supporting block of double-V-shaped floating self-aligning supporting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115847128A (en) * | 2022-12-23 | 2023-03-28 | 江苏南方永磁科技有限公司 | Stable clamping mechanism for machining core shaft piece |
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| CN115847128B (en) * | 2022-12-23 | 2023-12-22 | 江苏南方永磁科技有限公司 | Stable clamping mechanism for machining mandrel |
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