CN107020524B - Frock of centre gripping thin wall cover class part - Google Patents
Frock of centre gripping thin wall cover class part Download PDFInfo
- Publication number
- CN107020524B CN107020524B CN201710330914.8A CN201710330914A CN107020524B CN 107020524 B CN107020524 B CN 107020524B CN 201710330914 A CN201710330914 A CN 201710330914A CN 107020524 B CN107020524 B CN 107020524B
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- China
- Prior art keywords
- sleeve
- holding sleeve
- clamp body
- inner hole
- product
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Classifications
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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
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention belongs to the technical field of accessory clamping tools, and particularly discloses a tool for clamping thin-wall sleeve parts, which is characterized in that: the clamp comprises a clamp body which is arranged on a flange plate of a machine tool through a compression bolt, wherein the clamp body is provided with a hollow inner hole, an elastic holding sleeve for placing a product is arranged in the clamp body, a supporting ring is arranged in the top end of the elastic holding sleeve, and the middle of the bottom is connected with a machine tool pull rod which penetrates through the center of the flange plate through a tension bolt; the supporting ring, the elastic holding sleeve and the product are in clearance fit with each other. The invention can reduce the influence of the clamp on the deformation of the thin-wall sleeve products, improve the processing precision of the products and reduce the relative precision requirement on the machine tool, thereby reducing the processing cost of the products.
Description
Technical Field
The invention relates to a machining fixture, in particular to a fixture for clamping thin-wall sleeve parts.
Background
The inner hole of the thin-wall sleeve part is finely machined on a lathe, and the inner hole is deformed when being held by a fixture during machining due to the small wall thickness of the sleeve part; when the processing is finished, the precision of the inner hole is difficult to ensure, and the quality of the product is unstable.
Disclosure of Invention
Aiming at the defects and the points existing in the use of the existing fixture, the invention provides a fixture for clamping thin-wall sleeve parts, which can reduce the influence of the fixture on the deformation of the thin-wall sleeve products, improve the processing precision of the products and reduce the relative precision requirement on a machine tool, thereby reducing the processing cost of the products.
The invention adopts the following technical scheme for solving the technical problems:
the utility model provides a frock of centre gripping thin wall cover class part which characterized in that: the clamp comprises a clamp body which is arranged on a flange plate of a machine tool through a compression bolt, wherein the clamp body is provided with a hollow inner hole, an elastic holding sleeve for placing a product is arranged in the clamp body, a supporting ring is arranged in the top end of the elastic holding sleeve, and the middle of the bottom is connected with a machine tool pull rod which penetrates through the center of the flange plate through a tension bolt; the support ring, the elastic holding sleeve and the product are in clearance fit with each other, and the radial clearance between the holding sleeve and the product is smaller than the radial clearance between the support ring and the holding sleeve.
Further, the outside of elastic embracing sleeve top and the inside of anchor clamps body top are equipped with the tapering that mutually supports, the highly being greater than the thickness of support ring of tapering mutually supports, is less than 2.5 times the thickness of support ring.
Further, the radial fit clearance between the support ring and the holding sleeve is 0.002-0.03mm, and the radial clearance between the support ring and the product is 3-10mm.
Furthermore, a guide step which is matched with the hollow inner hole of the clamp body is arranged outside the lower end of the holding sleeve, and the guide step is in clearance fit with the hollow inner hole of the clamp body.
Further, the holding sleeve is a multi-petal slotted elastic sleeve, and the product is placed in an inner hole of the holding sleeve.
Further, a step for placing the supporting ring is arranged inside the top end of the holding sleeve, a clamp spring groove is formed in the upper end of the step, and a clamp spring for clamping the supporting ring is arranged in the clamp spring groove.
Furthermore, the lower end of the holding sleeve is in clearance fit with the lower end of the hollow inner hole of the clamp body.
Furthermore, the holding sleeve is in clearance fit with the flange plate.
Further, the hollow inner hole of the clamp body is a hollow cylindrical inner hole.
Further, the holding sleeve is a multi-petal slotted cylindrical elastic sleeve.
During assembly, the clamp body is fixed on the flange plate through the compression bolt, the holding sleeve is arranged in the clamp body and fixed on the machine tool pull rod through the tension bolt, the supporting ring is arranged in the step of the upper end face of the holding sleeve, and the supporting ring is clamped through the clamp spring in the clamp spring groove; placing the product in an inner hole of the holding sleeve, tensioning the holding sleeve through a machine tool pull rod, and after the holding sleeve is completely attached to the taper fit part of the clamp body, deforming the holding sleeve to clamp the product and the support ring; the taper fit height of the holding sleeve and the clamp body is larger than the thickness of the supporting ring and smaller than 2.5 times the thickness of the supporting ring, and the supporting ring has high strength and hardness; therefore, the support ring can prevent the holding sleeve from continuing to deform, thereby ensuring that the product cannot excessively deform.
Compared with the prior art, the invention provides a special tool for thin-wall sleeve parts, which is used for processing inner holes and end faces of thin-wall sleeve products, and can avoid product deformation and improve product quality through the combination of an elastic holding sleeve and a clamp body. The concrete steps are as follows: 1) The supporting ring, the elastic holding sleeve and the product are in clearance fit with each other, and the radial clearance between the holding sleeve and the product is smaller than the radial clearance between the supporting ring and the holding sleeve, so that the product can be effectively clamped when the tool works, and the product is ensured not to deform; moreover, the taper fit height of the holding sleeve and the clamp body is larger than the thickness of the supporting ring and smaller than 2.5 times the thickness of the supporting ring, and the supporting ring has high strength and hardness; therefore, the support ring can prevent the holding sleeve from continuing to deform, so that the product is ensured not to excessively deform; 2) The lower end of the outer cylinder of the holding sleeve is provided with a guide step, so that the guiding effect can be achieved in the tensioning process of the holding sleeve, and the radial runout value of the inner hole corresponding to the outer diameter is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the invention and do not constitute a limitation to the invention, and in which:
FIG. 1 is a diagram of a tooling structure for clamping thin-walled sleeve-like parts according to the present invention;
FIG. 2 is an enlarged view of a part of the structure of a clamp spring in the invention;
FIG. 3 is a three-dimensional cutaway view of the present invention;
reference numerals in the drawings: 1 product, 2 embracing sleeve, 3 compression bolt, 4 anchor clamps body, 5 ring flange, 6 supporting ring, 7 tensioning bolt, 8 lathe pull rod, 9 jump ring.
Detailed Description
Referring to the tooling for clamping thin-wall sleeve parts shown in fig. 1-3, the tooling for clamping thin-wall sleeve parts is characterized in that: the clamp comprises a clamp body 4 which is arranged on a machine tool flange 5 through a compression bolt 3, wherein the clamp body 4 is provided with a hollow inner hole, an elastic holding sleeve 2 for placing a product 1 is arranged in the clamp body, a supporting ring 6 is arranged in the top end of the elastic holding sleeve 2, and the middle of the bottom is connected with a machine tool pull rod 8 which passes through the center of the flange 5 through a tension bolt 7; the supporting ring 6, the elastic holding sleeve 2 and the product 1 are in clearance fit with each other, and the radial clearance between the holding sleeve 2 and the product 1 is smaller than the radial clearance between the supporting ring 6 and the holding sleeve 2.
The outside of elastic embracing sleeve 2 top and the inside of anchor clamps body 4 top are equipped with the tapering that mutually supports, the highly being greater than the thickness of support ring 6 of tapering mutually supporting is less than 2.5 times the thickness of support ring 6.
The radial fit clearance between the support ring 6 and the holding sleeve 2 is 0.002-0.03mm, and the radial clearance between the support ring 6 and the product 1 is 3-10mm.
The outer guide step which is matched with the hollow inner hole of the clamp body 4 is arranged at the lower end of the holding sleeve 2, and the guide step is in clearance fit with the hollow inner hole of the clamp body 4.
The holding sleeve 2 is a multi-petal slotted elastic sleeve, and the product 1 is arranged in an inner hole of the holding sleeve 2.
The top end of the holding sleeve 2 is internally provided with a step for placing the supporting ring 6, the upper end of the step is provided with a clamp spring groove, and the clamp spring groove is internally provided with a clamp spring 9 for clamping the supporting ring 6.
The lower end of the holding sleeve 2 is in clearance fit with the lower end of the hollow inner hole of the clamp body 4.
The holding sleeve 2 is in clearance fit with the flange plate 5.
The hollow inner hole of the clamp body is a hollow cylindrical inner hole.
Further, the holding sleeve 2 is a multi-petal slotted cylindrical elastic sleeve.
During assembly, the clamp body 4 is fixed on the flange plate 5 through the compression bolt 3, the holding sleeve 2 is placed in the clamp body 4, the clamp body is fixed on the machine tool pull rod 8 through the tension bolt 7, the support ring 6 is placed in the step of the upper end face of the holding sleeve 2, and the support ring 6 is clamped through the clamp spring 9 in the clamp spring groove; placing the product 1 in an inner hole of the holding sleeve 2, tensioning the holding sleeve 2 through a machine tool pull rod 8, and after the taper fit part of the holding sleeve 2 and the clamp body 4 is completely attached, deforming the holding sleeve 2, clamping the product 1 firstly, and tightly holding the product by clamping the supporting ring 6; the taper fit height of the holding sleeve 2 and the clamp body 4 is larger than the thickness of the supporting ring 6 and smaller than 2.5 times the thickness of the supporting ring 6, and the supporting ring 6 has high strength and hardness; the support ring 6 thus prevents the sleeve 2 from continuing to deform, thus ensuring that the product 1 does not excessively deform.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a frock of centre gripping thin wall cover class part which characterized in that: the clamp comprises a clamp body (4) which is arranged on a machine tool flange (5) through a compression bolt (3), wherein the clamp body (4) is provided with a hollow inner hole, an elastic holding sleeve (2) for placing a product (1) is arranged in the clamp body, a supporting ring (6) is arranged in the top end of the holding sleeve (2), and the middle of the bottom is connected with a machine tool pull rod (8) which penetrates through the center of the flange (5) through a tension bolt (7); the outside of the top end of the holding sleeve (2) and the inside of the top end of the clamp body (4) are provided with mutually matched tapers, and the height of the mutually matched tapers is larger than the thickness of the supporting ring (6) and smaller than 2.5 times the thickness of the supporting ring (6); the support ring (6), the holding sleeve (2) and the product (1) are in clearance fit with each other, the radial clearance between the holding sleeve (2) and the product (1) is smaller than the radial clearance between the support ring (6) and the holding sleeve (2), the support ring (6) has high strength and hardness, and the radial fit clearance between the support ring (6) and the holding sleeve (2) is 0.002-0.03mm.
2. The tooling for clamping thin-walled sleeve parts according to claim 1, wherein: the radial clearance between the support ring (6) and the product (1) is 3-10mm.
3. The tooling for clamping thin-walled sleeve parts according to claim 1, wherein: the outer portion of the lower end of the holding sleeve (2) is provided with a guide step which is matched with the hollow inner hole of the clamp body (4), and the guide step is in clearance fit with the hollow inner hole of the clamp body (4).
4. A tooling for clamping thin-walled sleeve-like parts according to any of claims 1-3, characterized in that: the holding sleeve (2) is a multi-petal slotted elastic sleeve, and the product (1) is arranged in an inner hole of the holding sleeve (2).
5. The tooling for clamping thin-walled sleeve parts according to claim 4, wherein: the top end of the holding sleeve (2) is internally provided with a step for placing the supporting ring (6), the upper end of the step is provided with a clamp spring groove, and a clamp spring (9) for clamping the supporting ring (6) is arranged in the clamp spring groove.
6. The tooling for clamping thin-walled sleeve parts according to claim 4, wherein: the lower end of the holding sleeve (2) is in clearance fit with the lower end of the hollow inner hole of the clamp body (4).
7. The tooling for clamping thin-walled sleeve parts according to claim 4, wherein: the holding sleeve (2) is in clearance fit with the flange plate (5).
8. The tooling for clamping thin-walled sleeve parts according to any of claims 5-7, wherein: the hollow inner hole of the clamp body is a hollow cylindrical inner hole.
9. The tooling for clamping thin-walled sleeve parts according to claim 8, wherein: the holding sleeve (2) is a multi-petal slotted cylindrical elastic sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710330914.8A CN107020524B (en) | 2017-05-11 | 2017-05-11 | Frock of centre gripping thin wall cover class part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710330914.8A CN107020524B (en) | 2017-05-11 | 2017-05-11 | Frock of centre gripping thin wall cover class part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107020524A CN107020524A (en) | 2017-08-08 |
| CN107020524B true CN107020524B (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710330914.8A Active CN107020524B (en) | 2017-05-11 | 2017-05-11 | Frock of centre gripping thin wall cover class part |
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| Country | Link |
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| CN (1) | CN107020524B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948722B (en) * | 2018-09-27 | 2021-11-16 | 航天科工哈尔滨风华有限公司 | Inner cavity machining tool and machining method for large composite material thin-wall cover type part |
| CN108890685B (en) * | 2018-09-30 | 2024-02-20 | 苏州软体机器人科技有限公司 | Flexible clamp |
| CN109877216A (en) * | 2019-04-12 | 2019-06-14 | 中国航发常州兰翔机械有限责任公司 | A kind of contraction of punching parts small space inside dimension tooling and its working method |
| CN110640521B (en) * | 2019-10-24 | 2024-07-05 | 合肥波林新材料股份有限公司 | Automatic clamp for external holding positioning of thin-wall sleeve and end face compression |
| CN114083012A (en) * | 2021-12-22 | 2022-02-25 | 上海交运汽车动力系统有限公司 | Clamping equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4367053A (en) * | 1978-11-06 | 1983-01-04 | Andrew Stratienko | Clamping device |
| CN101557029A (en) * | 2008-04-07 | 2009-10-14 | 启碁科技股份有限公司 | Antenna auxiliary stand |
| CN203023323U (en) * | 2011-08-29 | 2013-06-26 | 西门子公司 | Hub fastening device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201632857U (en) * | 2009-11-05 | 2010-11-17 | 江苏省社渚轴承有限公司 | Elastic inner clamp of machine tool |
| DE102010050127A1 (en) * | 2010-11-03 | 2012-05-03 | Mubea Systems, S.A. | Device for processing a large-format, thin-walled workpiece |
| CN201988969U (en) * | 2011-03-22 | 2011-09-28 | 南车戚墅堰机车有限公司 | Fixture for hydraulic clamping vehicle for thin-walled parts |
| CN103465072B (en) * | 2013-06-23 | 2016-12-28 | 芜湖杰诺瑞汽车电器系统有限公司 | The milling clamper of thin-walled motor casing |
| CN103419051A (en) * | 2013-08-08 | 2013-12-04 | 江西洪都航空工业集团有限责任公司 | Thin-wall sleeve inner hole finish machining clamp and inner hole machining method |
| CN203592077U (en) * | 2013-10-30 | 2014-05-14 | 北京航天新风机械设备有限责任公司 | Bulging tool of titanium alloy double-curvature rotation barrel |
| CN104002160B (en) * | 2014-06-18 | 2016-04-06 | 合肥波林新材料股份有限公司 | A kind of outer armful of elasticity automatic fixture of axial location |
| CN204094532U (en) * | 2014-09-17 | 2015-01-14 | 江苏上汽汽车同步器厂 | The post-tensioning tight-holding type vehicle clamper of a kind of processing thin-walled endoporus and end face |
| CN205520504U (en) * | 2016-01-29 | 2016-08-31 | 江苏民申机械装备有限公司 | Fixture |
| CN206811519U (en) * | 2017-05-11 | 2017-12-29 | 合肥波林新材料股份有限公司 | A kind of frock for clamping thin-wall sleeve parts |
-
2017
- 2017-05-11 CN CN201710330914.8A patent/CN107020524B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4367053A (en) * | 1978-11-06 | 1983-01-04 | Andrew Stratienko | Clamping device |
| CN101557029A (en) * | 2008-04-07 | 2009-10-14 | 启碁科技股份有限公司 | Antenna auxiliary stand |
| CN203023323U (en) * | 2011-08-29 | 2013-06-26 | 西门子公司 | Hub fastening device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107020524A (en) | 2017-08-08 |
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