CN111906600A - Eccentric cavity inner end surface grinding method and device - Google Patents
Eccentric cavity inner end surface grinding method and device Download PDFInfo
- Publication number
- CN111906600A CN111906600A CN202010890912.6A CN202010890912A CN111906600A CN 111906600 A CN111906600 A CN 111906600A CN 202010890912 A CN202010890912 A CN 202010890912A CN 111906600 A CN111906600 A CN 111906600A
- Authority
- CN
- China
- Prior art keywords
- axis
- shaft
- disc
- base
- grinding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
A method for grinding the inner end face of an eccentric cavity comprises the following steps of A, providing a base of a columnar hollow structure, wherein the base comprises a bottom face which is axially used for being in contact with a grinding machine chuck and a top face which is used for bearing a disc shaft type component, an eccentric hole is formed in the top face, the disc shaft type component is assembled in the eccentric hole, B, the base is installed on the grinding machine chuck, and two inner end faces of the cavity are ground. And C, after the grinding of the inner end face of one cavity is finished in the step B, repeating the step B, and finishing the grinding of the inner end face of a second cavity. And D, repeating the operations of the step B and the step C until the inner end surfaces of all the cavities are ground. The eccentric cavity inner end face grinding method provided by the invention greatly improves the processing efficiency. The invention also provides a device for the method.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a method and a device for grinding an inner end face of an eccentric cavity of a disc shaft part.
Background
FIG. 1 is a schematic diagram of a three-dimensional structure of a spider type component of a small and medium-sized aircraft engine; referring to fig. 1, the component 100 is a disc shaft type structure, four cavities 101 penetrating in the radial direction are uniformly distributed in the circumferential direction of a disc-shaped body, the two axial side walls of the cavities 101 are respectively provided with circular holes 102 penetrating in the axial direction, and lightening holes 105 are arranged between two adjacent circular holes 102 in the same radial plane, that is, the two axial side walls of the disc-shaped body are uniformly provided with the four lightening holes 105, the roughness requirements of two axial inner end surfaces 103(104) of the cavities 101 are ra0.4, and the verticality requirement is 0.025, so that the component can be processed only by a grinding method. However, since the area of the circular hole 102 is smaller than the area of the inner end surface 103(104) of the cavity 101, for example, when the axis of the circular hole 102 is taken as a reference, the diameter of the circular hole 102 is phi 50mm, and the maximum diameter of the cavity 101 is phi 90mm, when the grinding machine adopts a conventional grinding processing mode, the grinding wheel can process only the end surface of phi 50mm range taking the axis of the circular hole 102 as a reference at maximum after passing through the circular hole 102, and the inner end surfaces at other positions cannot be processed. Therefore, in the conventional machining method, it is necessary to perform a plurality of steps, and it is difficult to machine and mold the inner end surface 103(104) of the cavity 101 at one time.
Disclosure of Invention
The present invention is directed to a method and apparatus for grinding the inner end surface of an eccentric cavity to reduce or avoid the above-mentioned problems.
In order to solve the technical problem, the invention provides a method for grinding the inner end face of an eccentric cavity, which is used for grinding the inner end face of the cavity which is uniformly distributed on the disk body of a disk shaft part in the circumferential direction in the axial direction, wherein two side walls of the cavity in the axial direction are respectively provided with a round hole which is axially communicated, and a lightening hole is arranged between two adjacent round holes in the same radial plane, and the method comprises the following steps,
step A, providing a base with a columnar hollow structure, wherein the base comprises a bottom surface which is axially contacted with a grinding machine chuck and a top surface which is used for bearing the disc-shaft type component, the axial distance between the bottom surface and the top surface is larger than the length of a shaft-shaped body of the disc-shaft type component, the top surface is provided with an eccentric hole, the distance between the axis of the eccentric hole and the axis of the top surface is equal to the distance between the axis of the disc-shaft type component and the axis of the round hole, a positioning cylinder is fixedly connected in the eccentric hole, the bottom of the positioning cylinder is connected with a tensioning ring through threads to provide an index plate, the index plate is provided with a square positioning groove corresponding to the round hole, a detachably connected compression screw rod corresponding to the lightening hole is arranged, a lining sleeve is provided, and the inner diameter of the lining sleeve is the same as the outer diameter of the shaft-shaped body, the outer diameter of the lining sleeve and the inner diameter of the positioning cylinder form small clearance fit, the lining sleeve and the dividing plate are fixedly connected through bolts, then the shaft-shaped body of the disc-shaft-type part is inserted into the lining sleeve, the disc-shaft-type part and the dividing plate are fixedly connected through the compression screw, then the lining sleeve is inserted into the positioning cylinder, meanwhile, a limiting ring is provided at the bottom of the positioning cylinder, the shaft-shaped body of the disc-shaft-type part penetrates through the limiting ring until the lining sleeve is contacted with the limiting ring, and the limiting ring and the lining sleeve are fixedly connected through bolts. And the edge of the top surface is provided with a reference groove corresponding to the square positioning groove on the plane where the axis of the disc shaft type component and the axis of the eccentric hole are located.
And B, rotating the indexing disc to enable one direction positioning groove to correspond to the reference groove, inserting a square positioning pin to fix the relative position of the indexing disc and the base, and then rotating the tensioning ring to push the limiting ring to generate axial displacement, so that the indexing disc is tightly attached to the base to form fixed connection. Then the base is in relative the opposite side installation balancing weight of graduated disk, later will the base mounting is on the grinding machine chuck, the rotation center of grinding machine this moment promptly with the axis coincidence of base to also with one the axis coincidence of round hole, later with the emery wheel pole pass through the round hole stretches into the die cavity, again with the emery wheel installation to the emery wheel pole on, the diameter of emery wheel is greater than the diameter of round hole is less than the maximum diameter of die cavity, makes the axis of emery wheel pole with the axis skew of round hole. And starting the grinding machine, enabling the base to rotate around the axis of the grinding machine, and then moving the grinding wheel in the axial direction to grind the two inner end surfaces of the cavity.
And step C, after the grinding of the inner end face of one cavity is finished in the step B, stopping the grinding machine, taking down the grinding wheel, withdrawing the grinding wheel rod, taking down the square positioning pin, rotating the tensioning ring to enable the dividing plate to be separated from the base in a tight attaching state, and then repeating the step B to finish the grinding of the inner end face of a second cavity.
And D, repeating the operations of the step B and the step C until the inner end surfaces of all the cavities are ground.
Preferably, in step a, the tightening ring is provided with a guide ring groove, and the limit ring is provided with a guide ring-shaped protrusion corresponding to the guide ring groove of the tightening ring.
Preferably, in step B, the counterweight is a sector matched with the outer shape of the base, and a mounting groove is provided in the base corresponding to the counterweight.
Preferably, in step B, the diameter of the grinding wheel is 60mm, and the grinding wheel eccentrically moves 15-18mm in any direction.
The invention also provides a device for the method, which comprises a base with a cylindrical hollow structure, wherein the base comprises a bottom surface which is axially contacted with a grinding machine chuck and a top surface for bearing the disc-shaft type component, the axial distance between the bottom surface and the top surface is greater than the length of an axial body of the disc-shaft type component, the top surface is provided with an eccentric hole, the distance between the axis of the eccentric hole and the axis of the top surface is equal to the distance between the axis of the disc-shaft type component and the axis of the circular hole, a positioning cylinder is fixedly connected in the eccentric hole, the bottom of the positioning cylinder is connected with a tensioning ring through threads, the positioning cylinder is detachably connected with a lining sleeve, the lining sleeve is fixedly connected with an index plate, the bottom of the lining cylinder is detachably connected with a limiting ring, and the index plate is provided with a square positioning groove corresponding to the circular hole, a compression screw rod detachably connected is arranged corresponding to the lightening hole, and a reference groove corresponding to the square positioning groove is formed in the plane where the axis of the disc shaft type component and the axis of the eccentric hole are located on the edge of the top surface. And a balancing weight is arranged on the other side of the base, which is opposite to the dividing plate.
Preferably, the tensioning ring is provided with a guide ring groove, and the limiting ring is provided with a guide ring-shaped bulge corresponding to the guide ring groove of the tensioning ring.
Preferably, the counterweight block is a sector block matched with the shape of the base, and a mounting groove is formed in the base corresponding to the counterweight block.
Preferably, the portion of the inner wall of the bush sleeve for contact with the shaft-like body of the disc shaft-like member is kept only 10-20mm long in the axial direction.
Preferably, the outer diameter of the bushing sleeve forms a small clearance fit of 0.02mm with the inner diameter of the positioning cylinder.
The method for grinding the inner end surface of the eccentric cavity can finish the processing of the inner end surface of the whole eccentric cavity of one part after one-time clamping without integrally removing the device from a grinding machine, thereby greatly improving the processing efficiency. The invention also provides a device for the method.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein the content of the first and second substances,
FIG. 1 is a schematic diagram of a three-dimensional structure of a spider type component of a small and medium-sized aircraft engine;
FIG. 2 is a schematic perspective view of an eccentric cavity inner end face grinding method according to an embodiment of the present invention;
FIG. 3 is a schematic perspective exploded view of FIG. 2;
FIG. 4 is a schematic cross-sectional structural view of FIG. 2;
fig. 5 is a schematic view of the device of fig. 4 in a partial sectional structure in the direction a.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
FIG. 1 is a schematic diagram of a three-dimensional structure of a spider type component of a small and medium-sized aircraft engine; FIG. 2 is a schematic perspective view of an eccentric cavity inner end face grinding method according to an embodiment of the present invention; FIG. 3 is a schematic perspective exploded view of FIG. 2; FIG. 4 is a schematic cross-sectional structural view of FIG. 2; fig. 5 is a schematic view of the device of fig. 4 in a partial sectional structure in the direction a. Referring to fig. 1-5, the invention provides a method for grinding inner end faces 103(104) of cavities 101 uniformly distributed on a disc body of a disc shaft part 100 in the circumferential direction, wherein the cavities 101 are respectively provided with axially through round holes 102 on two axial side walls, and lightening holes 105 are arranged between two adjacent round holes 102 on the same radial plane, the method comprises the following steps,
step A, providing a base 2 with a cylindrical hollow structure, wherein the base 2 comprises a bottom surface 21 used for being in contact with a grinding machine chuck and a top surface 22 used for bearing the disc-shaft type component 100 in the axial direction, the axial distance between the bottom surface 21 and the top surface 22 is larger than the length of a shaft body of the disc-shaft type component 100, the top surface 22 is provided with an eccentric hole 221, the distance between the axis of the eccentric hole 221 and the axis of the top surface 22 is equal to the distance between the axis of the disc-shaft type component 100 and the axis of the round hole 102, a positioning cylinder 3 is fixedly connected in the eccentric hole 221, the bottom of the positioning cylinder 3 is connected with a tensioning ring 31 through threads, an index plate 4 is provided, the index plate 4 is provided with a square positioning groove 41 corresponding to the round hole 102, a detachably connected tensioning screw rod 42 is arranged corresponding to the lightening hole 105, and a lining sleeve 5 is provided, the inner diameter of the lining sleeve 5 is the same as the outer diameter of the shaft-like body of the disc-shaft-like component 100, the outer diameter of the lining sleeve 5 and the inner diameter of the positioning cylinder 3 form a small clearance fit, the lining sleeve 5 and the dividing disc 4 are fixedly connected through bolts, then the shaft-like body of the disc-shaft-like component 100 is inserted into the lining sleeve 5, the disc-shaft-like component 100 and the dividing disc 4 are fixedly connected through the compression screw 42, then the lining sleeve 5 is inserted into the positioning cylinder 3, meanwhile, a limiting ring 6 is provided at the bottom of the positioning cylinder 3, so that the shaft-like body of the disc-shaft-like component 100 passes through the limiting ring 6 until the lining sleeve 5 contacts with the limiting ring 6, and the limiting ring 6 and the lining sleeve 5 are fixedly connected through bolts. The edge of the top surface 22 is provided with a reference groove 222 corresponding to the square positioning groove 41 on the plane where the axis of the disc shaft type component 100 and the axis of the eccentric hole 221 are located.
The axial distance between the bottom surface 21 and the top surface 22 is greater than the length of the shaft body of the disc shaft part 100, so that the disc shaft part 100 can be assembled on the base 2 without interfering the clamping of the base 2 and the grinding machine.
The distance between the axis of the eccentric hole 221 and the axis of the top surface 22 is equal to the distance between the axis of the disc shaft type component 100 and the axis of the round hole 102, so that the axis of the round hole 102 corresponding to the cavity 101 to be machined can be ensured to be coincident with the workpiece rotation axis of the grinding machine.
The positioning cylinder 3 is used for supporting the shaft-shaped body of the disc shaft-shaped component 100, the inner diameter of the lining sleeve 5 is the same as the outer diameter of the shaft-shaped body of the disc shaft-shaped component 100, so that the effective positioning of the lining sleeve 5 and the shaft-shaped body of the disc shaft-shaped component 100 can be ensured, and the part of the inner wall of the lining sleeve 5, which is used for being contacted with the shaft-shaped body of the disc shaft-shaped component 100, can only keep the length of 10-20mm in the axial direction for the convenience of assembly and disassembly.
The outer diameter of the bushing sleeve 5 forms a small clearance fit (e.g., 0.02mm) with the inner diameter of the positioning cylinder 3, which facilitates rotation of the disc shaft like member 100.
The lining sleeve 5 can be made of a softer metal than the positioning cylinder 3, so that loss caused by rotational friction only occurs on the lining sleeve 5, and the service life of the whole device is prolonged.
The stop ring 6 is detachably connected to the bushing 5 by means of bolts, so that the stop ring 6 can be displaced axially by rotating the tightening ring 31, thereby exerting an axial force on the bushing 5. Further, as shown in fig. 4, the tightening ring 31 may be provided with a guiding ring groove, and the position-limiting ring 6 may be provided with a guiding ring protrusion corresponding to the guiding ring groove of the tightening ring 31, so as to prevent the position-limiting ring 6 from radially shifting when the tightening ring 31 pushes the position-limiting ring 6 to axially displace.
And step B, rotating the indexing disc 4 to enable one square positioning groove 41 to correspond to the reference groove 222, inserting one square positioning pin 7 to fix the relative position of the indexing disc 4 and the base 2, and then rotating the tensioning ring 31 to push the limiting ring 6 to generate axial displacement, so that the indexing disc 4 is tightly attached to the base 2 to form fixed connection. Then base 2 is in relative the opposite side installation of graduated disk 4 is a balancing weight 8, later will base 2 is installed on the grinding machine chuck, and the center of rotation of grinding machine this moment promptly with the axis coincidence of base 2 to also with one the axis coincidence of round hole 102, later with the emery wheel pole earlier through round hole 102 stretches into die cavity 101, again with the emery wheel installation to the emery wheel pole on, the diameter of emery wheel is greater than the diameter of round hole 102 is less than the maximum diameter of die cavity 101, makes the axis of emery wheel pole with the axis skew of round hole 102. Starting the grinding machine, rotating the base 2 around its axis, and then moving the grinding wheel in the axial direction, so as to grind the two inner end surfaces 103(104) of the cavity 101.
The indexing plate 4 is provided with a square positioning groove 41 corresponding to the circular hole 102, and the edge of the top surface 22 is provided with a reference groove 222 corresponding to the square positioning groove 41 on the plane where the axis of the plate shaft type member 100 and the axis of the eccentric hole 221 are located. That is, when the axis of one of the circular holes 102 coincides with the axis of the base 2, the square positioning groove 41 on the side symmetrical to the axis of the circular hole 102 with respect to the axis of the disc shaft-like member 100 can be matched with the reference groove 222 in the axial direction, so that the angular position of the disc shaft-like member 100 with respect to the top face 22 can be fixed by inserting the square positioning pin 7. Then the tightening ring 31 is rotated to push the limit ring 6 to generate axial displacement, so that the dividing disc 4 is tightly attached to the base 2 to form a fixed connection.
Because the disc shaft type component 100 is usually made of high-hardness alloy, the weight is large, and in order to avoid damage to a rotating shaft of the grinding machine caused by excessive eccentric force in the working process of the grinding machine, the dynamic balance of the base 2 in the working process can be ensured by arranging the balancing weights 8 at symmetrical positions. Referring to fig. 3-5, the weight 8 may be a fan-shaped block matching the shape of the base 2, and a mounting groove may be formed in the base 2 corresponding to the weight 8. Referring to fig. 4, other structures capable of more effectively increasing the balance force may be further disposed in the inner cavity of the base 2, which is not the main point of the innovation of the present invention and will not be described herein again.
The axis of the grinding wheel spindle has an offset from the axis of the circular hole 102, so that the grinding of the inner end face of the cavity 101 can be accomplished using a grinding wheel of smaller diameter. For example, in the spindle-like member 100 described in the background art, the diameter of the circular hole 102 is Φ 50mm, the maximum diameter of the cavity 101 is Φ 90mm, the grinding wheel diameter is 60mm (larger than the workpiece through-hole diameter by 50mm), the grinding wheel is eccentrically moved 15 to 18mm in any direction, and the diameter of the grinding wheel rod is set to 50 to 18 × 2 to 14mm in order to ensure that all inner end surfaces can be contacted during grinding.
And step C, after the grinding of the inner end face of one cavity 101 is finished in the step B, stopping the grinding machine, taking down the grinding wheel, withdrawing the grinding wheel rod, taking down the square positioning pin 7, rotating the tensioning ring 31 to enable the dividing plate 4 to be separated from the close contact state with the base 2, and repeating the step B to finish the grinding of the inner end face of a second cavity 101.
And D, repeating the operations of the step B and the step C until the inner end surfaces of all the cavities 101 are ground.
The method for grinding the inner end surface of the eccentric cavity can finish the processing of the inner end surface of the whole eccentric cavity of one part after one-time clamping without integrally removing the device from the grinding machine, thereby greatly improving the processing efficiency.
The invention also provides a device for the method, which comprises a base 2 with a cylindrical hollow structure, wherein the base 2 comprises a bottom surface 21 used for being contacted with a grinding machine chuck and a top surface 22 used for bearing the disc shaft type component 100, the axial distance between the bottom surface 21 and the top surface 22 is larger than the length of a shaft body of the disc shaft type component 100, the top surface 22 is provided with an eccentric hole 221, the distance between the axis of the eccentric hole 221 and the axis of the top surface 22 is equal to the distance between the axis of the disc shaft type component 100 and the axis of the circular hole 102, a positioning cylinder 3 is fixedly connected in the eccentric hole 221, the bottom of the positioning cylinder 3 is connected with a tensioning ring 31 through threads, the positioning cylinder 3 is detachably connected with a lining sleeve 5, the lining sleeve 5 is fixedly connected with an index plate 4, the bottom of the lining sleeve 5 is detachably connected with a limiting ring 6, the indexing plate 4 is provided with a square positioning groove 41 corresponding to the circular hole 102, a detachably connected compression screw 42 corresponding to the lightening hole 105, and a reference groove 222 corresponding to the square positioning groove 41 is formed in the plane where the axis of the plate shaft type component 100 and the axis of the eccentric hole 221 are located on the edge of the top surface 22. The other side of the base 2 opposite to the dividing plate 4 is provided with a balancing weight 8.
It should be appreciated by those of skill in the art that while the present invention has been described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including technical equivalents which are related to the embodiments and which are combined with each other to illustrate the scope of the present invention.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.
Claims (9)
1. A grinding method for the inner end face of eccentric cavity is used for grinding the axially inner end faces of cavities uniformly distributed on the disk body of disk shaft part in circumferential direction, the two axial side walls of the cavities are respectively provided with axially through round holes, and a lightening hole is arranged between two adjacent round holes on the same radial plane,
step A, providing a base with a columnar hollow structure, wherein the base comprises a bottom surface which is axially contacted with a grinding machine chuck and a top surface which is used for bearing the disc-shaft type component, the axial distance between the bottom surface and the top surface is larger than the length of a shaft-shaped body of the disc-shaft type component, the top surface is provided with an eccentric hole, the distance between the axis of the eccentric hole and the axis of the top surface is equal to the distance between the axis of the disc-shaft type component and the axis of the round hole, a positioning cylinder is fixedly connected in the eccentric hole, the bottom of the positioning cylinder is connected with a tensioning ring through threads to provide an index plate, the index plate is provided with a square positioning groove corresponding to the round hole, a detachably connected compression screw rod corresponding to the lightening hole is arranged, a lining sleeve is provided, and the inner diameter of the lining sleeve is the same as the outer diameter of the shaft-shaped body, the outer diameter of the lining sleeve and the inner diameter of the positioning cylinder form small clearance fit, the lining sleeve and the dividing plate are fixedly connected through bolts, then the shaft-shaped body of the disc-shaft-type part is inserted into the lining sleeve, the disc-shaft-type part and the dividing plate are fixedly connected through the compression screw, then the lining sleeve is inserted into the positioning cylinder, meanwhile, a limiting ring is provided at the bottom of the positioning cylinder, the shaft-shaped body of the disc-shaft-type part penetrates through the limiting ring until the lining sleeve is contacted with the limiting ring, and the limiting ring and the lining sleeve are fixedly connected through bolts. And the edge of the top surface is provided with a reference groove corresponding to the square positioning groove on the plane where the axis of the disc shaft type component and the axis of the eccentric hole are located.
And B, rotating the indexing disc to enable one direction positioning groove to correspond to the reference groove, inserting a square positioning pin to fix the relative position of the indexing disc and the base, and then rotating the tensioning ring to push the limiting ring to generate axial displacement, so that the indexing disc is tightly attached to the base to form fixed connection. Then the base is in relative the opposite side installation balancing weight of graduated disk, later will the base mounting is on the grinding machine chuck, the rotation center of grinding machine this moment promptly with the axis coincidence of base to also with one the axis coincidence of round hole, later with the emery wheel pole pass through the round hole stretches into the die cavity, again with the emery wheel installation to the emery wheel pole on, the diameter of emery wheel is greater than the diameter of round hole is less than the maximum diameter of die cavity, makes the axis of emery wheel pole with the axis skew of round hole. And starting the grinding machine, enabling the base to rotate around the axis of the grinding machine, and then moving the grinding wheel in the axial direction to grind the two inner end surfaces of the cavity.
And step C, after the grinding of the inner end face of one cavity is finished in the step B, stopping the grinding machine, taking down the grinding wheel, withdrawing the grinding wheel rod, taking down the square positioning pin, rotating the tensioning ring to enable the dividing plate to be separated from the base in a tight attaching state, and then repeating the step B to finish the grinding of the inner end face of a second cavity.
And D, repeating the operations of the step B and the step C until the inner end surfaces of all the cavities are ground.
2. The method according to claim 1, characterized in that in step a, the tension ring is provided with a guide ring groove, and the stop ring is provided with a guide ring-shaped projection corresponding to the guide ring groove of the tension ring.
3. The method of claim 1, wherein in step B, said weight is a segment that matches the profile of said base, and said base has mounting slots therein corresponding to said weight.
4. The method according to claim 1, wherein in step B, the diameter of the grinding wheel is 60mm, and the grinding wheel is eccentrically moved 15 to 18mm in any direction.
5. A device special for the method of claim 1, which comprises a base with a cylindrical hollow structure, wherein the base comprises a bottom surface axially contacting with a grinding machine chuck and a top surface for bearing the disc-shaft-like component, the axial distance between the bottom surface and the top surface is larger than the length of the shaft-like body of the disc-shaft-like component, the top surface is provided with an eccentric hole, the distance between the axis of the eccentric hole and the axis of the top surface is equal to the distance between the axis of the disc-shaft-like component and the axis of the round hole, a positioning cylinder is fixedly connected in the eccentric hole, the bottom of the positioning cylinder is connected with a tensioning ring through threads, the positioning cylinder is detachably connected with a lining sleeve, the lining sleeve is fixedly connected with an index plate, and the bottom of the lining cylinder is detachably connected with a limiting ring, the indexing disc is provided with a square positioning groove corresponding to the round hole, a compression screw rod detachably connected with the indexing disc corresponding to the lightening hole is arranged, and a reference groove corresponding to the square positioning groove is formed in the plane where the axis of the disc shaft part and the axis of the eccentric hole are located on the edge of the top surface. And a balancing weight is arranged on the other side of the base, which is opposite to the dividing plate.
6. The device as claimed in claim 5, characterized in that the tensioning ring is provided with a guide ring groove, and the limiting ring is provided with a guide ring-shaped projection corresponding to the guide ring groove of the tensioning ring.
7. The apparatus of claim 5, wherein said weight is a segment that matches the contour of said base, and wherein said base has mounting slots therein corresponding to said weight.
8. Device according to claim 5, characterized in that the part of the inner wall of the bushing sleeve intended to be in contact with the shaft-like body of the disc shaft-like part only maintains a length of 10-20mm in the axial direction.
9. The apparatus of claim 5, wherein the outer diameter of the bushing sleeve forms a small clearance fit of 0.02mm with the inner diameter of the positioning cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010890912.6A CN111906600B (en) | 2020-08-29 | 2020-08-29 | Eccentric cavity inner end surface grinding method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010890912.6A CN111906600B (en) | 2020-08-29 | 2020-08-29 | Eccentric cavity inner end surface grinding method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111906600A true CN111906600A (en) | 2020-11-10 |
| CN111906600B CN111906600B (en) | 2021-09-28 |
Family
ID=73267491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010890912.6A Active CN111906600B (en) | 2020-08-29 | 2020-08-29 | Eccentric cavity inner end surface grinding method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111906600B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4845895A (en) * | 1986-01-20 | 1989-07-11 | Seiko Seiki Kabushiki Kaisha | Internal grinding machine |
| CN2569968Y (en) * | 2002-09-27 | 2003-09-03 | 辛世生 | Adjustable eccentric gripping device for grinding machine |
| CN102046331A (en) * | 2008-05-30 | 2011-05-04 | Memc电子材料有限公司 | Semiconductor wafer polishing apparatus and method of polishing |
| US20120174372A1 (en) * | 2011-01-11 | 2012-07-12 | Serimax | Method of positioning pipes end to end |
| CN103144022A (en) * | 2013-02-04 | 2013-06-12 | 沈阳黎明航空零部件制造有限公司 | Method for grinding sealing face at inner end of graphite sealing seat of aero-engine |
| CN103692323A (en) * | 2013-12-12 | 2014-04-02 | 武汉中冶易新科技有限公司 | Device suitable for lathe and grinding machine to jointly process eccentric sleeve |
| CN203738577U (en) * | 2013-08-01 | 2014-07-30 | 洛阳轴研科技股份有限公司 | Fixture for grinding inner surface of non-magnetic bearing |
| CN103990982A (en) * | 2014-05-19 | 2014-08-20 | 上海大学 | Adjustable eccentric work fixture |
| JP2014200904A (en) * | 2013-04-10 | 2014-10-27 | 株式会社ジェイテクト | Internal grinder |
| CN207256076U (en) * | 2017-09-26 | 2018-04-20 | 歌尔科技有限公司 | Localization tool |
| CN210968435U (en) * | 2019-11-14 | 2020-07-10 | 无锡瑞鼎机床有限公司 | Positioning and supporting device for grinding inner surface of conical hole of synchronizer gear ring |
| CN211287615U (en) * | 2019-12-30 | 2020-08-18 | 牛淑敏 | Hole sealing device special for geological exploration |
-
2020
- 2020-08-29 CN CN202010890912.6A patent/CN111906600B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4845895A (en) * | 1986-01-20 | 1989-07-11 | Seiko Seiki Kabushiki Kaisha | Internal grinding machine |
| CN2569968Y (en) * | 2002-09-27 | 2003-09-03 | 辛世生 | Adjustable eccentric gripping device for grinding machine |
| CN102046331A (en) * | 2008-05-30 | 2011-05-04 | Memc电子材料有限公司 | Semiconductor wafer polishing apparatus and method of polishing |
| US20120174372A1 (en) * | 2011-01-11 | 2012-07-12 | Serimax | Method of positioning pipes end to end |
| CN103144022A (en) * | 2013-02-04 | 2013-06-12 | 沈阳黎明航空零部件制造有限公司 | Method for grinding sealing face at inner end of graphite sealing seat of aero-engine |
| JP2014200904A (en) * | 2013-04-10 | 2014-10-27 | 株式会社ジェイテクト | Internal grinder |
| CN203738577U (en) * | 2013-08-01 | 2014-07-30 | 洛阳轴研科技股份有限公司 | Fixture for grinding inner surface of non-magnetic bearing |
| CN103692323A (en) * | 2013-12-12 | 2014-04-02 | 武汉中冶易新科技有限公司 | Device suitable for lathe and grinding machine to jointly process eccentric sleeve |
| CN103990982A (en) * | 2014-05-19 | 2014-08-20 | 上海大学 | Adjustable eccentric work fixture |
| CN207256076U (en) * | 2017-09-26 | 2018-04-20 | 歌尔科技有限公司 | Localization tool |
| CN210968435U (en) * | 2019-11-14 | 2020-07-10 | 无锡瑞鼎机床有限公司 | Positioning and supporting device for grinding inner surface of conical hole of synchronizer gear ring |
| CN211287615U (en) * | 2019-12-30 | 2020-08-18 | 牛淑敏 | Hole sealing device special for geological exploration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111906600B (en) | 2021-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108296986B (en) | Synchronizer ring gear inner ring processing composite clamp | |
| CN204504272U (en) | Centrifugal Automatic-clamping scroll chuck | |
| US6371468B1 (en) | Universal workpiece holder | |
| US10384272B2 (en) | Large-stroke tensioning device in wheel machining process | |
| CN114589520B (en) | Positioning fixture and machining method for gyro motor dynamic pressure air bearing rotor cover | |
| CN111203603B (en) | Interchange clamping device for turbine disc | |
| CN111906600B (en) | Eccentric cavity inner end surface grinding method and device | |
| CN112059226B (en) | Adjustable hydraulic expansion mandrel and method | |
| CN213239326U (en) | Shaft dynamic balance clamp | |
| CN114227331B (en) | Shaft finish machining fixture and shaft machining machine tool | |
| US3747945A (en) | Universal ring jaws | |
| CN211219798U (en) | Clamping fixture for machine tool spindle | |
| CN110773759B (en) | Connecting disc subassembly and have its numerical control lathe electricity main shaft | |
| CN107234475B (en) | It is machined accurate hard turning bearing outer ring special fixture | |
| CN210209533U (en) | Internal expansion type precision turning clamp | |
| CN111347062B (en) | Brake disc machining process | |
| CN218800499U (en) | Eccentric excircle machining clamp | |
| WO2024135726A1 (en) | Spindle balancer | |
| CN217345056U (en) | High accuracy valve core grinding is with quick leveling fixing device | |
| EP0741631B1 (en) | Positive radial location of wheels on spindles | |
| CN212885111U (en) | Motor end cover lathe machining clamp | |
| CN112756710B (en) | Self-centering anti-vibration clamp for grinding and machining thin-web-plate gear part and clamping method | |
| CN216576756U (en) | Machining clamp for inner hole of center of supporting plate vehicle of heavy truck automobile gearbox | |
| CN220602574U (en) | Test carrier | |
| CN220127613U (en) | Eccentric workpiece turning tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |