CN111015305B - Spiral tube type hydraulic expansion shaft - Google Patents
Spiral tube type hydraulic expansion shaft Download PDFInfo
- Publication number
- CN111015305B CN111015305B CN201911111868.8A CN201911111868A CN111015305B CN 111015305 B CN111015305 B CN 111015305B CN 201911111868 A CN201911111868 A CN 201911111868A CN 111015305 B CN111015305 B CN 111015305B
- Authority
- CN
- China
- Prior art keywords
- end cover
- screw
- cavity
- cylinder body
- thin
- 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.)
- Active
Links
Images
Classifications
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- 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
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
- B23Q3/14—Mandrels in general
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The invention discloses a spiral tube type hydraulic expansion shaft which comprises a cylindrical clamp body, a left end cover, a right end cover, a thin-wall steel tube, a left screw and a right screw, wherein the cylindrical clamp body is a cylinder body with two open ends, the left end cover and the right end cover are respectively arranged at the left end and the right end of the cylinder body, the thin-wall steel tube is tightly wound on the outer surface of the cylinder body, the two end ports of the thin-wall steel tube are communicated with an inner cavity of the cylinder body, the left screw is in threaded connection with a central screw hole of the left end cover, the tail end of the left screw extends into the inner cavity of the cylinder body, and the right screw is in threaded connection with a central screw hole of the right end cover, and the tail end of the right screw extends into the inner cavity of the cylinder body. The spiral tube type hydraulic expansion shaft has the advantages that the thin-wall steel tube is made of standard sectional materials, the size consistency is good, the pressure in the inner cavity of the thin-wall steel tube is equal everywhere, and the radial deformation is equal; the inner hole of the workpiece is stressed uniformly.
Description
Technical Field
The invention relates to a spiral tube type hydraulic expansion and contraction shaft, and belongs to the technical field of workpiece clamps.
Background
The long hole parts are widely applied, and the long holes are used as the reference for positioning, mounting and applying in the machining process. Due to poor rigidity of the thin-wall long hole part, the thin-wall long hole part is easy to deform under the action of cutting force, and the workpiece is clamped and deformed by uneven clamping force, so that the requirement on the machining precision of the thin-wall long hole part is difficult to guarantee by using the traditional three-jaw chuck clamping method. How to improve the machining precision of thin-wall parts is always a concern in the industry.
Disclosure of Invention
The invention aims to provide a spiral tube type hydraulic expansion and contraction shaft with uniform workpiece stress.
The technical scheme adopted by the invention is as follows: a spiral tube type hydraulic expansion shaft comprises a cylindrical clamp body, a left end cover, a right end cover, a thin-wall steel tube, a left screw and a right screw, wherein the cylindrical clamp body is a cylinder with two open ends; the inner cavity of the barrel is internally provided with a left partition plate and a right partition plate, the inner cavity of the cylindrical clamp body is divided into three sections by the left partition plate and the right partition plate, a left liquid plastic cavity is formed between the left partition plate and the left end cover, a right liquid plastic cavity is formed between the right partition plate and the right end cover, a left port of the thin-wall steel pipe is communicated with the left liquid plastic cavity, a right port of the thin-wall steel pipe is communicated with the right liquid plastic cavity, the tail end of a left screw extends into the left liquid plastic cavity, and the tail end of a right screw extends into the right liquid plastic cavity.
Preferably, the outer surfaces of the two ends of the cylinder are provided with annular left and right shoulders, the thin-wall steel pipe is positioned between the left and right shoulders, the wall of the cylinder is provided with a left hole and a right hole along the radial direction, the left hole is communicated with the left liquid plastic cavity, the right hole is communicated with the right liquid plastic cavity, the left end of the thin-wall steel pipe is inserted into the left hole, the outer wall of the left end of the thin-wall steel pipe is welded with the cylinder, the right end of the thin-wall steel pipe is inserted into the right hole, and the outer wall of the right end of the thin-wall steel pipe is welded with the cylinder.
Preferably, the left partition plate and the right partition plate are welded in the inner cavity of the cylinder body, the inner cavity of the cylinder body is divided into three sections by the left partition plate and the right partition plate, the three sections are respectively a left cavity, a middle cavity and a right cavity, the left end cover and the right end cover are symmetrically arranged at the left end and the right end of the cylinder body, the right side of the left end cover, the left side of the left partition plate and the left cavity of the cylinder body enclose a closed left liquid plastic cavity, and the left side of the right end cover, the right side of the right partition plate and the right cavity of the cylinder body enclose a closed right liquid plastic cavity.
Preferably, bosses are arranged on the outer sides of the left end cover and the right end cover, central screw holes are formed in the left end cover and the right end cover, a left screw is in threaded connection with the central screw hole of the left end cover, a plunger is arranged at the right end of the left screw, the plunger at the right end of the left screw extends into the left liquid plastic cavity, and an inner hexagonal groove is formed in the left end face of the left screw; the right screw is in threaded connection with a central screw hole of the right end cover, a plunger is arranged at the left end of the right screw, the plunger at the left end of the right screw extends into the right liquid plastic cavity, and an inner hexagonal groove is formed in the right end face of the right screw.
Preferably, the inner cones matched with the movable ejector pins are respectively arranged at the left end center of the left end cover and the right end center of the right end cover.
Preferably, the left liquid plastic cavity, the right liquid plastic cavity and the thin-wall steel pipe are filled with liquid plastic.
The invention has the beneficial effects that: according to the spiral tube type hydraulic expansion shaft, the thin-wall steel tube is wound by using the standard section bar, and the structure is simple; the thin-wall steel pipe uses standard section bars, the size consistency is good, the pressure of the inner cavity of the thin-wall steel pipe is equal everywhere, and the radial deformation is equal; the inner hole of the workpiece is stressed uniformly.
Drawings
Fig. 1 is a general view of a spiral tube type hydraulic expansion and contraction shaft.
Fig. 2 is a cut-away view of a spiral tube type hydraulic expansion shaft.
Fig. 3 is a cut-away view of the cylindrical jig body.
Detailed Description
The technical solution of the present invention is described in detail below, but the scope of the present invention is not limited to the embodiments.
In order to make the disclosure of the present invention more comprehensible, the following description is further made in conjunction with fig. 1 to 3 and the detailed description.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1 and 2, the spiral tube type hydraulic expansion and contraction shaft in this embodiment includes a cylindrical clamp body 10, a left end cover 30, a right end cover 40, a thin-walled steel tube 20, a left screw 50, and a right screw 60, where the cylindrical clamp body 10 is a cylinder 11 with two open ends, the left end cover 30 and the right end cover 40 are respectively disposed at the left end and the right end of the cylinder 11, the thin-walled steel tube 20 is tightly wound on the outer surface of the cylinder 11, the ports at the two ends of the thin-walled steel tube 20 are both communicated with the inner cavity of the cylinder 11, the left screw 50 is in threaded connection with the central screw hole of the left end cover 30, and the tail end of the left screw extends into the inner cavity of the cylinder 11, and the right screw 60 is in threaded connection with the central screw hole of the right end cover 40, and the tail end of the right screw extends into the inner cavity of the cylinder 11.
In this embodiment, the thin-walled steel tube is a standard profile purchased from outsourcing, the thin-walled steel tube 20 is tightly wound on the outer surface of the cylinder 11, and the winding process adopted is also a known technology. The thin-wall steel pipe uses standard section bars, the size consistency is good, the pressure of the inner cavity of the thin-wall steel pipe is equal everywhere, the radial deformation is equal, and the stress of the inner hole of the workpiece is uniform.
As shown in fig. 3, a left partition plate 12 and a right partition plate 13 are arranged in the inner cavity of the cylinder 11, the inner cavity of the cylindrical fixture body 10 is divided into three sections by the left partition plate 12 and the right partition plate 13, a left liquid plastic cavity 16 is formed between the left partition plate 12 and the left end cover 30, a right liquid plastic cavity 17 is formed between the right partition plate 13 and the right end cover 40, a left port 21 of the thin-walled steel tube 20 is communicated with the left liquid plastic cavity 16, a right port 22 of the thin-walled steel tube 20 is communicated with the right liquid plastic cavity 17, the tail end of the left screw 50 extends into the left liquid plastic cavity 16, and the tail end of the right screw 60 extends into the right liquid plastic cavity 17. The left liquid plastic cavity 16, the right liquid plastic cavity 17 and the thin-wall steel pipe 20 are filled with liquid plastic.
The outer surfaces of two ends of the cylinder 11 are provided with a left circular shoulder 14 and a right circular shoulder 15, the thin-wall steel tube 20 is located between the left circular shoulder 14 and the right circular shoulder 15 and used for limiting expansion of the thin-wall steel tube 20 in the axial direction, and the thin-wall steel tube 20 can only expand in the radial direction to increase the diameter. A left hole 18 and a right hole 19 are formed in the wall of the barrel 11 along the radial direction, the left hole 18 is communicated with the left liquid plastic cavity 16, the right hole 19 is communicated with the right liquid plastic cavity 17, the left end of the thin-wall steel pipe 20 is inserted into the left hole 18, the outer wall of the left end of the thin-wall steel pipe 20 is welded with the barrel 11, the right end of the thin-wall steel pipe 20 is inserted into the right hole 19, and the outer wall of the right end of the thin-wall steel pipe 20 is welded with the barrel 11.
The left partition plate 12 and the right partition plate 13 are welded in the inner cavity of the cylinder body 11, the inner cavity of the cylinder body 11 is divided into three sections by the left partition plate 12 and the right partition plate 13, the three sections are respectively a left cavity, a middle cavity and a right cavity, the left end cover 30 and the right end cover 40 are symmetrically arranged at the left end and the right end of the cylinder body 11, and the left end cover 30 and the right end cover 40 are fixedly connected or welded at the left end and the right end of the cylinder body 11. The right side of the left end cover 30, the left side of the left partition plate 12 and the left cavity of the cylinder 11 enclose a closed left liquid plastic cavity 16, and the left side of the right end cover 40, the right side of the right partition plate 13 and the right cavity of the cylinder 11 enclose a closed right liquid plastic cavity 17.
As shown in fig. 2, bosses are arranged on the outer sides of the left end cover 30 and the right end cover 40, the left end cover 30 and the right end cover 40 are both provided with central screw holes, a left screw 50 is in threaded connection with the central screw hole of the left end cover 30, a plunger is arranged at the right end of the left screw 50, the plunger at the right end of the left screw 50 extends into the left liquid plastic cavity 16, and an inner hexagonal groove is arranged on the left end surface of the left screw 50; the right screw 60 is in threaded connection with a central screw hole of the right end cover 40, a plunger is arranged at the left end of the right screw 60, the plunger at the left end of the right screw 60 extends into the right liquid plastic cavity 17, and an inner hexagonal groove is formed in the right end face of the right screw 60. The left end center of the left end cover 30 and the right end center of the right end cover 40 are respectively provided with an inner cone matched with the movable thimble.
The working process of the spiral tube type hydraulic expansion shaft of the embodiment is as follows: when the tool is used, the spiral tube type hydraulic expansion and contraction shaft is inserted into a hole of a part to be machined (the diameter of the hole is required to be only slightly larger than that of the spiral tube type hydraulic expansion and contraction shaft), a screw in an end cover is spun by using an inner hexagonal wrench, liquid plastic in the closed cavity is extruded by the plunger, the pressure of the liquid plastic in the closed cavity is increased, the inner cavity of the thin-wall steel tube 20 is pressed and expanded (the pressure of the inner cavity of the thin-wall steel tube 20 is equal everywhere, the Pascal principle is adopted), the thin-wall steel tube is uniformly expanded in the radial direction, the diameter of the spiral tube type hydraulic expansion and contraction shaft is increased, the spiral tube type hydraulic expansion and contraction shaft and the inner hole of the part to be machined are in an interference fit state, and clamping is completed.
And (3) mounting the spiral tube type hydraulic expansion shaft provided with the part to be processed on a machine tool, positioning and mounting two ends of the spiral tube type hydraulic expansion shaft by a thimble, or clamping the left end of the spiral tube type hydraulic expansion shaft and mounting the right end of the spiral tube type hydraulic expansion shaft by the thimble, and thus, processing required.
And after the machining is finished, the spiral pipe type hydraulic expansion and contraction shaft provided with the part to be machined is taken down, and the action of detaching the part is opposite to the action of installing the part.
Where not otherwise indicated herein or enabled by the prior art, it will be appreciated that modifications and variations may be resorted to without departing from the scope of the invention as set forth in the appended claims.
Claims (3)
1. Spiral tube formula hydraulic pressure breathing axle, its characterized in that: the clamp comprises a cylindrical clamp body (10), a left end cover (30), a right end cover (40), a thin-wall steel pipe (20), a left screw (50) and a right screw (60), wherein the cylindrical clamp body (10) is a cylinder body (11) with two open ends, the left end cover (30) and the right end cover (40) are respectively arranged at the left end and the right end of the cylinder body (11), the thin-wall steel pipe (20) is tightly wound on the outer surface of the cylinder body (11), ports at the two ends of the thin-wall steel pipe (20) are communicated with an inner cavity of the cylinder body (11), the left screw (50) is in threaded connection with a central screw hole of the left end cover (30), the tail end of the left screw extends into the inner cavity of the cylinder body (11), and the right screw (60) is in threaded connection with a central screw hole of the right end cover (40), and the tail end of the right screw extends into the inner cavity of the cylinder body (11);
a left partition plate (12) and a right partition plate (13) are arranged in the inner cavity of the cylinder body (11), the inner cavity of the cylindrical clamp body (10) is divided into three sections by the left partition plate (12) and the right partition plate (13), a left liquid plastic cavity (16) is formed between the left partition plate (12) and the left end cover (30), a right liquid plastic cavity (17) is formed between the right partition plate (13) and the right end cover (40), a left port (21) of the thin-wall steel pipe (20) is communicated with the left liquid plastic cavity (16), a right port (22) of the thin-wall steel pipe (20) is communicated with the right liquid plastic cavity (17), the tail end of a left screw (50) extends into the left liquid plastic cavity (16), the tail end of a right screw (60) extends into the right liquid plastic cavity (17), and liquid plastics are filled in the left liquid plastic cavity (16), the right liquid plastic cavity (17) and the thin-wall steel pipe (20);
the outer surfaces of two ends of the cylinder body (11) are provided with an annular left shoulder (14) and an annular right shoulder (15), the thin-wall steel pipe (20) is positioned between the left shoulder (14) and the right shoulder (15), the wall of the cylinder body (11) is provided with a left hole (18) and a right hole (19) along the radial direction, the left hole (18) is communicated with the left liquid plastic cavity (16), the right hole (19) is communicated with the right liquid plastic cavity (17), the left end of the thin-wall steel pipe (20) is inserted into the left hole (18), the outer wall of the left end of the thin-wall steel pipe (20) is welded with the cylinder body (11), the right end of the thin-wall steel pipe (20) is inserted into the right hole (19), and the outer wall of the right end of the thin-wall steel pipe (20) is welded with the cylinder body (11);
bosses are arranged on the outer sides of the left end cover (30) and the right end cover (40), central screw holes are formed in the left end cover (30) and the right end cover (40), a left screw (50) is in threaded connection with the central screw hole of the left end cover (30), a plunger is arranged at the right end of the left screw (50), the plunger at the right end of the left screw (50) extends into the left liquid plastic cavity (16), and an inner hexagonal groove is formed in the left end face of the left screw (50); the right screw (60) is in threaded connection with a central screw hole of the right end cover (40), a plunger is arranged at the left end of the right screw (60), the plunger at the left end of the right screw (60) extends into the right liquid plastic cavity (17), and an inner hexagonal groove is formed in the right end face of the right screw (60).
2. The spiral tube type hydraulic expansion and contraction shaft according to claim 1, wherein a left partition plate (12) and a right partition plate (13) are welded in the inner cavity of the cylinder body (11), the inner cavity of the cylinder body (11) is divided into three sections by the left partition plate (12) and the right partition plate (13), the three sections are respectively a left cavity, a middle cavity and a right cavity, a left end cover (30) and a right end cover (40) are symmetrically arranged at the left end and the right end of the cylinder body (11), the right side of the left end cover (30), the left side of the left partition plate (12) and the left cavity of the cylinder body (11) enclose a closed left liquid plastic cavity (16), and the left side of the right end cover (40), the right side of the right partition plate (13) and the right cavity of the cylinder body (11) enclose a closed right liquid plastic cavity (17).
3. The spiral tube type hydraulic expansion and contraction shaft according to claim 1, wherein the left end center of the left end cover (30) and the right end center of the right end cover (40) are respectively provided with an inner cone which is matched with the movable ejector pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911111868.8A CN111015305B (en) | 2019-11-14 | 2019-11-14 | Spiral tube type hydraulic expansion shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911111868.8A CN111015305B (en) | 2019-11-14 | 2019-11-14 | Spiral tube type hydraulic expansion shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111015305A CN111015305A (en) | 2020-04-17 |
| CN111015305B true CN111015305B (en) | 2022-04-22 |
Family
ID=70201466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911111868.8A Active CN111015305B (en) | 2019-11-14 | 2019-11-14 | Spiral tube type hydraulic expansion shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111015305B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2362207A1 (en) * | 1972-12-26 | 1974-06-27 | Damour Lawrence R | EXPANDABLE CLAMPING ARM, COILING ARM O.DGL |
| US3834257A (en) * | 1972-04-17 | 1974-09-10 | Uniroyal Ag | Radially expandable and contractible mandrel |
| US4436252A (en) * | 1981-08-28 | 1984-03-13 | Buerkle Wolfgang | Tension shaft for winding frames |
| SU1426703A1 (en) * | 1985-11-28 | 1988-09-30 | Б.С.Хом к, П.В.Хом к, М.С.Хом к и И.Б.Хом к | Arrangement for securing thin-walled tubes |
| JPH06206108A (en) * | 1993-01-08 | 1994-07-26 | Masatomi Kogyo Kk | Metal pipe supporting fitting |
| CN201835390U (en) * | 2010-09-30 | 2011-05-18 | 广东杭萧钢构有限公司 | Beam-column rigid connection joint for tubular concrete column |
| CN203650037U (en) * | 2013-11-22 | 2014-06-18 | 重庆盾铭电磁阀有限公司 | Fixing device for easily-damaged workpiece |
| CN104385187A (en) * | 2014-11-16 | 2015-03-04 | 重庆瑞普电缆有限公司 | Pneumatic rubber expansion core shaft |
| CN107498976A (en) * | 2017-09-04 | 2017-12-22 | 瑞安市博威机械配件有限公司 | Composite steel roll |
| CN207280853U (en) * | 2017-10-23 | 2018-04-27 | 云南建投第五建设有限公司 | The continuous pressure testing device of heavy-caliber nodular cast iron pipe |
| DE102017002436A1 (en) * | 2017-03-13 | 2018-09-13 | Richard Behringer | Clamping system with hydraulically stretched hollow shaft for secure frictional locking of tools or workpieces for their machining |
| CN207953058U (en) * | 2018-01-16 | 2018-10-12 | 浙江省建工集团有限责任公司 | A kind of pipe internal partition welding tooling |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201931093U (en) * | 2010-12-10 | 2011-08-17 | 浙江大学 | Variable mass hollow main shaft |
| CN103174222A (en) * | 2013-03-11 | 2013-06-26 | 同济大学 | Steel casting modularization panel point for connection of steel pipe column and H-shaped beam |
| CN110043718A (en) * | 2019-04-16 | 2019-07-23 | 仪征市恒盛机械有限公司 | A kind of Anti-pressure aluminum pipe |
-
2019
- 2019-11-14 CN CN201911111868.8A patent/CN111015305B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3834257A (en) * | 1972-04-17 | 1974-09-10 | Uniroyal Ag | Radially expandable and contractible mandrel |
| DE2362207A1 (en) * | 1972-12-26 | 1974-06-27 | Damour Lawrence R | EXPANDABLE CLAMPING ARM, COILING ARM O.DGL |
| US4436252A (en) * | 1981-08-28 | 1984-03-13 | Buerkle Wolfgang | Tension shaft for winding frames |
| SU1426703A1 (en) * | 1985-11-28 | 1988-09-30 | Б.С.Хом к, П.В.Хом к, М.С.Хом к и И.Б.Хом к | Arrangement for securing thin-walled tubes |
| JPH06206108A (en) * | 1993-01-08 | 1994-07-26 | Masatomi Kogyo Kk | Metal pipe supporting fitting |
| CN201835390U (en) * | 2010-09-30 | 2011-05-18 | 广东杭萧钢构有限公司 | Beam-column rigid connection joint for tubular concrete column |
| CN203650037U (en) * | 2013-11-22 | 2014-06-18 | 重庆盾铭电磁阀有限公司 | Fixing device for easily-damaged workpiece |
| CN104385187A (en) * | 2014-11-16 | 2015-03-04 | 重庆瑞普电缆有限公司 | Pneumatic rubber expansion core shaft |
| DE102017002436A1 (en) * | 2017-03-13 | 2018-09-13 | Richard Behringer | Clamping system with hydraulically stretched hollow shaft for secure frictional locking of tools or workpieces for their machining |
| CN107498976A (en) * | 2017-09-04 | 2017-12-22 | 瑞安市博威机械配件有限公司 | Composite steel roll |
| CN207280853U (en) * | 2017-10-23 | 2018-04-27 | 云南建投第五建设有限公司 | The continuous pressure testing device of heavy-caliber nodular cast iron pipe |
| CN207953058U (en) * | 2018-01-16 | 2018-10-12 | 浙江省建工集团有限责任公司 | A kind of pipe internal partition welding tooling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111015305A (en) | 2020-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103962598B (en) | The automatic expansion core fixture of thin-walled tube kind part | |
| CN201287270Y (en) | Mandrel body for lathe work of pressure booster primary shaft | |
| CN201913265U (en) | Elastic clamping device for two ends of long hole | |
| CN104043851A (en) | Tool for processing cylindrical workpiece | |
| CN105618803A (en) | Expanding clamp for turning thin-walled part | |
| CN203610707U (en) | Special fixture for turning excircle of thin-wall cylinder body | |
| CN115070475A (en) | Precision liquid expansion clamp | |
| CN109128885B (en) | Thin-wall cylindrical workpiece outer circle turning and clamping tool and clamping method | |
| CN108838417B (en) | Clamp for machining shaft sleeve parts | |
| CN108436123B (en) | Anchor clamps suitable for quick clamping of thin wall part | |
| CN203281912U (en) | Rising core tool | |
| CN111015305B (en) | Spiral tube type hydraulic expansion shaft | |
| CN211540409U (en) | Thin-wall long-cylinder part turning process tool | |
| CN219074939U (en) | Clamping device for thin-wall pipe fitting machining | |
| CN202088012U (en) | Mechanical clamping spring collet for holes | |
| CN204450017U (en) | Swivel nut inner bore of part lathe for machining fixture | |
| CN203304606U (en) | Inner circle tensioning type mandrel fixture | |
| CN103071824A (en) | Expansion core tool | |
| CN210615875U (en) | Hydraulic clamp for milling shaft parts | |
| CN213438497U (en) | Tool for machining cylindrical thin-wall parts | |
| CN211304834U (en) | Manual hydraulic expansion turning clamp | |
| CN209754048U (en) | Modularization chuck | |
| CN207289556U (en) | A kind of Self-centering device of tube kind part internal thread machining | |
| CN219234652U (en) | Milling fixture for thin-wall workpiece | |
| CN204935201U (en) | A kind of external diameter fixture with shrinking escape groove |
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 |