CN111774895A - Radial elastic clamping mechanism and method for shaft parts - Google Patents
Radial elastic clamping mechanism and method for shaft parts Download PDFInfo
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- CN111774895A CN111774895A CN202010670543.XA CN202010670543A CN111774895A CN 111774895 A CN111774895 A CN 111774895A CN 202010670543 A CN202010670543 A CN 202010670543A CN 111774895 A CN111774895 A CN 111774895A
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- clamping
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- claw
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 210000000078 claw Anatomy 0.000 claims description 35
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention provides a radial elastic clamping mechanism and a method for shaft parts, which comprises a clamp body, wherein the top of the clamp body is provided with a shaft collar, a curve block rotating around the shaft collar is sleeved outside the shaft collar, and the top of the shaft collar is fixedly provided with a positioning disc; the radial direction processing of axle collar has a plurality of clamping jaw mounting holes, the inside of clamping jaw mounting hole is through sliding fit installs the clamping jaw, the tail end of clamping jaw contacts with the tight curve groove of clamp of processing on the inside wall of curve piece, the head of clamping jaw contacts the cooperation with the clamping at the inside part's of anchor clamps lateral wall. After the radial elastic clamping mechanism is adopted, the positioning precision is high, the clamping is convenient, the processing quality is stable, the requirements of processing operation are reduced, and the assembly is simpler.
Description
Technical Field
The invention belongs to the field of clamps, and particularly relates to a radial elastic clamping mechanism and a radial elastic clamping method for shaft parts.
Background
Traditional axle type parts machining all adopts three-jaw chuck to press from both sides tightly the part, also some design special fixture promote through the hydro-cylinder and carry out self-holding, its biggest shortcoming is to adopt three-jaw chuck to press from both sides tightly the part, because three-jaw chuck precision itself is not very high, it is not high to carry out the precision that presss from both sides tightly to the part, need carry out the alignment again to the processing part, design special fixture promotes through the hydro-cylinder and carries out self-holding, the requirement to machine tool and anchor clamps part is very high again, the technical requirement to the operation has been increased, it is also inconvenient to manage, parts machining's cost increases.
Disclosure of Invention
In order to solve the technical problems, the invention provides a radial elastic clamping mechanism and a method for shaft parts, which overcome the defects that the traditional shaft part processing adopts a three-jaw chuck to clamp the parts, the mounting precision is not high, the processed parts need to be aligned again, and the special clamp is adopted to automatically clamp the parts through the pushing of an oil cylinder, so that the requirements on a processing machine tool and the clamp parts are high, the technical requirements on operation are increased, the management is inconvenient, and the cost of part processing is increased; after the radial elastic clamping mechanism is adopted, the positioning precision is high, the clamping is convenient, the processing quality is stable, the requirements of processing operation are reduced, and the assembly is simpler.
In order to achieve the technical features, the invention is realized as follows: a radial elastic clamping mechanism for shaft parts comprises a clamp body, wherein a shaft collar is arranged at the top of the clamp body, a curve block rotating around the shaft collar is sleeved outside the shaft collar, and a positioning disc is fixedly mounted at the top of the shaft collar; the radial direction processing of axle collar has a plurality of clamping jaw mounting holes, the inside of clamping jaw mounting hole is through sliding fit installs the clamping jaw, the tail end of clamping jaw contacts with the tight curve groove of clamp of processing on the inside wall of curve piece, the head of clamping jaw contacts the cooperation with the clamping at the inside part's of anchor clamps lateral wall.
And a handle for rotating the curve block is fixedly arranged on the outer wall of the curve block.
The number of the clamping curve grooves is the same as that of the clamping claws, and the clamping curve grooves are uniformly distributed on the inner side wall of the curve block.
The curve of the clamping curve groove adopts an Archimedes spiral line.
And uniformly distributed clamping bulges are processed at the end parts of the clamping claws, which are contacted with the outer wall of the part.
The clamping protrusions are triangular teeth.
And a spring return mechanism for driving the clamping claw to return is arranged in the clamping claw.
The spring resetting mechanism comprises a spring cavity which is processed inside the clamping jaw, a compression spring is installed inside the spring cavity, the other end of the compression spring is in contact fit with an elastic ring, the elastic ring is installed inside an elastic ring installation cavity in a sliding fit mode, and the elastic ring installation cavity is connected to the tail end of the spring cavity.
The method for clamping the shaft parts by the radial elastic clamping mechanism comprises the following steps:
step 1: placing the part into a positioning disc, and positioning the part by using an inner hole and an end face of the positioning disc;
step 2: pushing the handle to drive the curve block to rotate around the shaft collar, pushing the clamping claw to clamp the part by using the clamping curve groove on the curve block, simultaneously compressing a compression spring in the clamping claw on the elastic ring, and enabling a clamping bulge on the clamping claw to be in contact with the outer wall of the part and reliably clamping the part;
and step 3: after the clamping of the workpiece is finished, machining the workpiece;
and 4, step 4: after the shaft parts are processed, the handle is pushed reversely to drive the curve block, a clamping curve groove in the curve block is separated from the clamping claw, and the compression spring pushes the clamping claw reversely on the elastic ring to separate from the workpiece;
and 5: and taking out the part.
The invention has the following beneficial effects:
1. the clamping claw is widely applied to clamping parts when shaft parts are machined, the handle is pushed to drive the curve block, and the Archimedes spiral line on the curve block is utilized to push the clamping claw to clamp the parts. The scheme has the advantages of high positioning precision, convenience in clamping and stable processing quality, reduces the requirements of processing operation and is simpler to assemble.
2. The clamping curved groove is used for being matched with the clamping claw, so that the clamping curved groove is driven to move and is finally matched with a part, and the part is clamped.
3. The Archimedes spiral line is adopted, so that the positioning precision is high, and the clamping is convenient.
5. The friction force between the clamping bulge and the workpiece is increased through the clamping bulge, and the clamping reliability is further ensured.
6. The spring reset mechanism achieves the purpose of automatic reset.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a front cross-sectional view of the present invention.
FIG. 2 is a view A-A of FIG. 1 of the present invention.
FIG. 3 is an enlarged view of a portion K of FIG. 1 according to the present invention.
FIG. 4 is an enlarged view of a portion M of FIG. 2 according to the present invention.
In the figure: the part comprises a part 1, a positioning disc 2, a curve block 3, a clamp body 4, a handle 5, a clamping claw 6, a clamping curve groove 7, an elastic ring 8, a compression spring 9, a clamping protrusion 10, a shaft collar 11, a clamping jaw mounting hole 12, a spring cavity 13 and an elastic ring mounting cavity 14.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1, a radial elastic clamping mechanism for shaft parts comprises a clamp body 4, wherein a shaft collar 11 is arranged at the top of the clamp body 4, a curve block 3 rotating around the shaft collar 11 is sleeved outside the shaft collar 11, and a positioning disc 2 is fixedly arranged at the top of the shaft collar 11; the radial direction processing of axle ring 11 has a plurality of clamping jaw mounting holes 12, clamping jaw 6 is installed through sliding fit in the inside of clamping jaw mounting hole 12, the tail end of clamping jaw 6 contacts with the tight curve groove 7 of clamp of processing on the inside wall of curve piece 3, the head of clamping jaw 6 contacts the cooperation with the clamping at the inside part 1's of anchor clamps body 4 lateral wall. The clamping device is suitable for clamping parts during the processing of shaft parts, and the shaft parts require stable clamping during the processing, and are high in precision and convenient to operate; after the radial elastic clamping mechanism is adopted, the positioning precision is higher, the clamping is more convenient, the processing quality is more stable, the requirements of processing operation are reduced, and the assembly is simpler.
In a specific use process, the handle is pushed to drive the curve block, and the Archimedes spiral line on the curve block is utilized to push the clamping claw to clamp the part.
Further, a handle 5 for rotating the curve block 3 is fixedly installed on the outer wall of the curve block. The curve block 3 is conveniently rotated through the handle 5.
Furthermore, the number of the clamping curve grooves 7 is the same as that of the clamping claws 6, and the clamping curve grooves are uniformly distributed on the inner side wall of the curve block 3. The clamping curve groove 7 is used for being matched with the clamping claw 6, so that the clamping curve groove is driven to move and is finally matched with the part, and the part is clamped.
Further, the curve of the clamping curve groove 7 adopts an Archimedes spiral line. The Archimedes spiral line is adopted, so that the positioning precision is high, and the clamping is convenient.
Furthermore, the end part of the clamping claw 6, which is contacted with the outer wall of the part 1, is provided with evenly distributed clamping bulges 10.
Further, the clamping protrusion 10 is triangular. The clamping protrusion 10 increases the frictional force with the workpiece, thereby ensuring the reliability of clamping.
Further, a spring return mechanism for driving the clamping claw 6 to return is arranged inside the clamping claw. The spring resetting mechanism comprises a spring cavity 13 which is processed inside the clamping jaw 6, a compression spring 9 is installed inside the spring cavity 13, the other end of the compression spring 9 is in contact fit with an elastic ring 8, the elastic ring 8 is installed inside an elastic ring installation cavity 14 through sliding fit, and the elastic ring installation cavity 14 is connected to the tail end of the spring cavity 13. The spring reset mechanism achieves the purpose of automatic reset. In the specific working process, after the shaft part 1 is processed, the handle 5 is pushed reversely to drive the curve block 3, the clamping curve groove 7 on the curve block 3 is separated from the clamping claw 6, and the compression spring 9 pushes the clamping claw 6 reversely on the elastic ring 8 to be separated from the workpiece.
Example 2:
the method for clamping the shaft parts by the radial elastic clamping mechanism comprises the following steps:
step 1: placing the part 1 into a positioning disc 2, and positioning the part by using the inner hole and the end face of the positioning disc 2;
step 2: pushing the handle 5 to drive the curve block 3 to rotate around the shaft collar 11, pushing the clamping claw 6 to clamp the part 1 by utilizing the clamping curve groove 7 on the curve block 3, simultaneously compressing the compression spring 9 in the clamping claw 6 on the elastic ring 8, and contacting the clamping protrusion 10 on the clamping claw 6 with the outer wall of the part 1 to reliably clamp the part;
and step 3: after the clamping of the workpiece is finished, machining the workpiece;
and 4, step 4: after the shaft part 1 is processed, the handle 5 is pushed reversely to drive the curve block 3, the clamping curve groove 7 on the curve block 3 is separated from the clamping claw 6, and the compression spring 9 pushes the clamping claw 6 reversely on the elastic ring 8 to separate from the workpiece;
and 5: the part 1 is removed.
Claims (9)
1. The utility model provides a radial elasticity clamping mechanism for axle type part which characterized in that: the clamp comprises a clamp body (4), wherein a shaft collar (11) is arranged at the top of the clamp body (4), a curve block (3) rotating around the shaft collar (11) is sleeved outside the shaft collar (11), and a positioning disc (2) is fixedly arranged at the top of the shaft collar (11); the radial direction processing of axle collar (11) has a plurality of clamping jaw mounting holes (12), clamping jaw (6) are installed through sliding fit in the inside of clamping jaw mounting hole (12), the tail end of clamping jaw (6) contacts with the tight curve groove of clamp (7) of processing on curve piece (3) inside wall, the head of clamping jaw (6) contacts the cooperation with the clamping at the inside part of anchor clamps body (4) the lateral wall of part (1).
2. The radial elastic clamping mechanism for the shaft parts as claimed in claim 1, wherein: and a handle (5) for rotating the curve block (3) is fixedly arranged on the outer wall of the curve block.
3. The radial elastic clamping mechanism for the shaft parts as claimed in claim 1, wherein: the number of the clamping curve grooves (7) is the same as that of the clamping claws (6), and the clamping curve grooves are uniformly distributed on the inner side wall of the curve block (3).
4. A radially elastic clamping mechanism for shaft parts according to claim 1 or 3, characterized in that: the curve of the clamping curve groove (7) adopts an Archimedes spiral line.
5. The radial elastic clamping mechanism for the shaft parts as claimed in claim 1, wherein: the end part of the clamping claw (6) contacted with the outer wall of the part (1) is processed with uniformly distributed clamping bulges (10).
6. The radial elastic clamping mechanism for the shaft parts as claimed in claim 5, wherein: the clamping bulge (10) adopts triangular teeth.
7. The radial elastic clamping mechanism for the shaft parts as claimed in claim 1, wherein: and a spring return mechanism for driving the clamping claw (6) to return is arranged in the clamping claw.
8. The radial elastic clamping mechanism for the shaft parts as claimed in claim 7, wherein: spring return mechanism is including processing spring cavity (13) inside clamping jaw (6), the internally mounted of spring cavity (13) has compression spring (9), the other end and the cooperation that contacts of compression spring (9) elastic ring (8), elastic ring (8) are installed in the inside of elastic ring installation cavity (14) through sliding fit, the end at spring cavity (13) is connected in elastic ring installation cavity (14).
9. Method for clamping shaft parts by using a radially elastic clamping mechanism for shaft parts according to any one of claims 1 to 8, characterized by comprising the following steps:
step 1: placing the part (1) into a positioning disc (2), and positioning the part by using the inner hole and the end face of the positioning disc (2);
step 2: the handle (5) is pushed to drive the curve block (3) to rotate around the shaft collar (11), the clamping curve groove (7) on the curve block (3) is utilized to push the clamping claw (6) to clamp the part (1), meanwhile, the compression spring (9) in the clamping claw (6) is compressed on the elastic ring (8), and the clamping protrusion (10) on the clamping claw (6) is contacted with the outer wall of the part (1) and reliably clamps the part;
and step 3: after the clamping of the workpiece is finished, machining the workpiece;
and 4, step 4: after the shaft part (1) is machined, the handle (5) is pushed reversely to drive the curve block (3), a clamping curve groove (7) on the curve block (3) is separated from the clamping claw (6), and the compression spring (9) pushes the clamping claw (6) reversely on the elastic ring (8) to separate from the workpiece;
and 5: and taking out the part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010670543.XA CN111774895A (en) | 2020-07-13 | 2020-07-13 | Radial elastic clamping mechanism and method for shaft parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010670543.XA CN111774895A (en) | 2020-07-13 | 2020-07-13 | Radial elastic clamping mechanism and method for shaft parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111774895A true CN111774895A (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010670543.XA Pending CN111774895A (en) | 2020-07-13 | 2020-07-13 | Radial elastic clamping mechanism and method for shaft parts |
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| Country | Link |
|---|---|
| CN (1) | CN111774895A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1594965A (en) * | 1976-04-29 | 1981-08-05 | Rylewski E M | Method and apparatus for the manufacture of parts of rotary fluid machines |
| CN205763962U (en) * | 2016-07-06 | 2016-12-07 | 衢州启程机械设备有限公司 | A kind of scroll chuck that can realize Quick-clamped |
| CN206794807U (en) * | 2017-05-11 | 2017-12-26 | 东莞市中煌五金制品有限公司 | A kind of Lathe chuck jaw structure |
| CN109500638A (en) * | 2018-12-18 | 2019-03-22 | 江西福格新能源传动技术有限公司 | Thin-wall pipe clamping device |
| CN208696340U (en) * | 2018-09-28 | 2019-04-05 | 厦门紫丁香自动化科技有限公司 | Electric chuck |
| CN109895230A (en) * | 2018-09-30 | 2019-06-18 | 景德镇市英才科技有限公司 | Self centering pottery art repaired biscuit folder |
| CN210755413U (en) * | 2019-09-25 | 2020-06-16 | 常州市三佑塑业有限公司 | Novel outer circle milling device |
| CN212286715U (en) * | 2020-07-13 | 2021-01-05 | 宜昌长机科技有限责任公司 | Radial elastic clamping mechanism for shaft parts |
-
2020
- 2020-07-13 CN CN202010670543.XA patent/CN111774895A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1594965A (en) * | 1976-04-29 | 1981-08-05 | Rylewski E M | Method and apparatus for the manufacture of parts of rotary fluid machines |
| CN205763962U (en) * | 2016-07-06 | 2016-12-07 | 衢州启程机械设备有限公司 | A kind of scroll chuck that can realize Quick-clamped |
| CN206794807U (en) * | 2017-05-11 | 2017-12-26 | 东莞市中煌五金制品有限公司 | A kind of Lathe chuck jaw structure |
| CN208696340U (en) * | 2018-09-28 | 2019-04-05 | 厦门紫丁香自动化科技有限公司 | Electric chuck |
| CN109895230A (en) * | 2018-09-30 | 2019-06-18 | 景德镇市英才科技有限公司 | Self centering pottery art repaired biscuit folder |
| CN109500638A (en) * | 2018-12-18 | 2019-03-22 | 江西福格新能源传动技术有限公司 | Thin-wall pipe clamping device |
| CN210755413U (en) * | 2019-09-25 | 2020-06-16 | 常州市三佑塑业有限公司 | Novel outer circle milling device |
| CN212286715U (en) * | 2020-07-13 | 2021-01-05 | 宜昌长机科技有限责任公司 | Radial elastic clamping mechanism for shaft parts |
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