CN105127811A - Automatic fixture for clamping thin-wall ring gear part through internal expansion positioning and end surface compression - Google Patents
Automatic fixture for clamping thin-wall ring gear part through internal expansion positioning and end surface compression Download PDFInfo
- Publication number
- CN105127811A CN105127811A CN201510628917.0A CN201510628917A CN105127811A CN 105127811 A CN105127811 A CN 105127811A CN 201510628917 A CN201510628917 A CN 201510628917A CN 105127811 A CN105127811 A CN 105127811A
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- China
- Prior art keywords
- gear
- thin
- swollen
- elastic component
- face
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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
- B23Q3/02—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
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/065—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material
-
- 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
-
- 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
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
Abstract
The invention discloses an automatic fixture for clamping a thin-wall ring gear part through internal expansion positioning and end surface compression. The automatic fixture is characterized in that a connecting disc is mounted on a spindle flange of a lathe, a gear internal expansion elastic part is mounted on the end surface of the connecting disc through a spigot, an axial positioning sleeve is mounted outside the gear internal expansion elastic part in a sleeving manner, the gear internal expansion elastic part is provided with an inner cone hole, an open slot is formed in the inner cone hole section and forms a conical surface expansion structure with an expansion core, and the thin wall ring gear part is mounted on outer teeth of the gear internal expansion elastic part and is tightly close to the end surface of the axial positioning sleeve; the thick end of a tension screw is connected with a lathe pull rod and locked by a pull rod round nut, and the expansion core, a belleville spring and an end surface press ring are mounted at the thin end of the tension screw and tightly pressed by adjusting nuts; the end surface press ring provides axial thrust for the expansion core through the belleville spring, so that the gear internal expansion elastic part expands to eliminate mounting clearance between the gear internal expansion elastic part and a part, and an open press plate tightly presses the end surface of the thin-wall ring gear part to realize clamping. With the adoption of the automatic fixture, the thin-wall ring gear part can be positioned accurately.
Description
Technical field
The present invention relates to the frock clamp of mechanical processing industry, is more particularly the automatic fixture that in the thin-wall annular gear part that uses of a kind of automatic lathe, swollen location end face compress.
Background technology
The outer bowlder of automatic lathe processing thin-walled ring gear part, generally can not use power chuck, needs to adopt interior swollen spring chuck or pressure side face fixture.Because the rigidity of thin-wall annular gear part is little, existing interior swollen spring chuck still can make part produce clamping distortion, affects machining accuracy; The machining accuracy of pressure side face fixture depends on the radial location precision of part on fixture, and on fixture, to load and take out part, radial clearance must be left between fixture and part, the position of this radial clearance is random fluctuation when clamping parts, so the radial assemblage gap of pressure side face frock affects machining accuracy.
Summary of the invention
The object of the invention is for automatic lathe provides swollen location in a kind of thin-wall annular gear part and the automatic fixture of end face compression, fixture is by the radial assemblage gap between interior swollen elimination fixture and thin-wall annular gear part, make the accurate radial location of part, and then compressing component end face, realize the clamping to part, improve the machining accuracy of part to be processed.
Technical problem solved by the invention realizes by the following technical solutions:
The design feature of the automatic fixture that swollen location in thin-wall annular gear part of the present invention end face compress is: terminal pad terminal pad screw is arranged on the spindle flange dish of lathe, and in gear, swollen elastic component is arranged on the end face of terminal pad by seam and elastic component screw; Axial positioning sleeve is sleeved in gear outside swollen elastic component, is fixed on the end face of terminal pad with positioning sleeve screw; In gear, swollen elastic component is with internal taper hole, and internal taper hole section is provided with open slot and forms conical surface expanding structure with expansion core, and the external tooth that thin-wall annular gear part is contained in swollen elastic component in gear is close to the end face of axial positioning sleeve; The butt end of stretching screw is connected with lathe pull rod screw, with pull bar round nut axial locking, and with round nut lock-screw by the locking of pull bar round nut radial direction; Expansion core, disk spring, end face pressure ring are contained in the taper end of stretching screw, and compress with adjusting nut; When stretching screw is tightened up, end face pressure ring provides axial thrust by disk spring to expansion core, expansion core makes swollen elastic component distending in gear by the conical surface, fits with the internal tooth gapless of thin-wall annular gear part, then compresses the end face of thin-wall annular gear part by opening pressing plate.
The design feature of the automatic fixture that swollen location in thin-wall annular gear part of the present invention end face compress also is:
In described gear, the profile of the internal taper hole section of swollen elastic component is external gear, described internal taper hole section is provided with decile open slot, described external gear is non-fully gear, the position of open slot does not have gear teeth, and under not swelling state, the profile of tooth of described external gear coordinates with the ring gear tooth gaps of processed thin-wall annular gear part.
The endoporus matched in clearance of swollen elastic component in the left end external cylindrical surface of described expansion core and gear; Stretching screw is through the endoporus of expansion core; Described disk spring is arranged between expansion core and end face pressure ring, described disk spring be contained in expansion core inner chamber in and stretch out one section, expansion core can be adjusted accordingly by the reed quantity of adjustment disk spring and adjusting nut by promoting the tension force that in gear, swollen elastic component applies to described thin-wall annular gear part.
In described gear, swollen elastic component has elasticity, and material is spring steel, and through heat treatment.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention's method clamping thin-wall annular gear part of adopting interior swollen and pressure side face to combine, by the assemblage gap between interior swollen elimination fixture and thin-wall annular gear part, realize the accurate location of thin-wall annular gear part, by pressure side face, part is fixed again, form clamping, solve a difficult problem for thin-wall annular gear part clamping distortion.The tension force of fixture can be adjusted by the reed quantity and adjusting nut adjusting disk spring, and disk spring pressure and end face thrust sum equal the pulling force of lathe pull bar.
2, the stretching screw of the present invention's design is connected with the pull bar of automatic lathe, and the power of holding parts comes from rotary oil cylinder or rotary cylinder, achieves mechanization, alleviates the labour intensity of operating personnel, and can realize the quick-clamping of part, operating efficiency is high.
3, structure of the present invention is simple, easy to use; Owing to adopting the interior swollen method clamping thin-wall annular gear part combined with pressure side face, clamp precision is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is structure three-dimensional cut away view of the present invention;
Fig. 3 is structure three-dimensional explosive view of the present invention.
In figure: 1 lathe pull bar, 2 pull bar round nuts, 3 round nut lock-screws, 4 spindle flange dishes, 5 terminal pads, 6 terminal pad screws, 7 axial positioning sleeves, 8 elastic component screws, 9 positioning sleeve screws, 10 thin-wall annular gear parts, swollen elastic component in 11 gears, 12 expansion cores, 13 opening pressing plates, 14 disk springs, 15 end face pressure rings, 16 adjusting nuts, 17 stretching screws.
Detailed description of the invention
See Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is structural representation of the present invention; Fig. 2 is structure three-dimensional cut away view of the present invention; Fig. 3 is structure three-dimensional explosive view of the present invention.
In the present embodiment, in thin-wall annular gear part, the version of the automatic fixture that swollen location end face compress is: terminal pad 5 terminal pad screw 6 is arranged on the spindle flange dish 4 of lathe, and in gear, swollen elastic component 11 is arranged on the end face of terminal pad 5 by seam and elastic component screw 8; Axial positioning sleeve 7 to be sleeved in gear outside swollen elastic component 11, is fixed on the end face of terminal pad 5 with positioning sleeve screw 9; In gear, swollen elastic component 11 is with internal taper hole, and internal taper hole section is provided with open slot and forms conical surface expanding structure with expansion core 12, and the external tooth that thin-wall annular gear part 10 is contained in swollen elastic component 11 in gear is close to the end face of axial positioning sleeve 7; The butt end of stretching screw 17 is threaded with lathe pull bar 1, with pull bar round nut 2 axial locking, and with round nut lock-screw 3 by the locking of pull bar round nut 2 radial direction; Expansion core 12, disk spring 14, end face pressure ring 15 are contained in the taper end of stretching screw 17, and compress with adjusting nut 16; When stretching screw 17 is tightened up, end face pressure ring 15 provides axial thrust by disk spring 14 pairs of expansion cores 12, expansion core 12 makes swollen elastic component 11 distending in gear by the conical surface, fit with the internal tooth gapless of thin-wall annular gear part 10, then compress the end face of thin-wall annular gear part 10 by opening pressing plate 13.
In concrete enforcement, corresponding vibrational power flow also comprises:
In gear, swollen elastic component 11 is with internal taper hole, the profile of internal taper hole section is external gear, this internal taper hole section is provided with decile open slot, external gear is non-fully gear, the position of open slot does not have gear teeth, and under not swelling state, the profile of tooth of this external gear coordinates with the ring gear tooth gaps of processed thin-wall annular gear part 10.
The endoporus matched in clearance of swollen elastic component 11 in the left end external cylindrical surface of expansion core 12 and gear; Stretching screw 17 is through the endoporus of expansion core 12; Disk spring 14 is arranged between expansion core 12 and end face pressure ring 15, disk spring 14 be contained in expansion core 12 inner chamber in and stretch out one section, expansion core 12 can be adjusted accordingly by the reed quantity and adjusting nut 16 adjusting disk spring 14 by promoting the tension force that in gear, swollen elastic component 11 applies to described thin-wall annular gear part 10; In gear, swollen elastic component 11 has elasticity, and material is spring steel, and through heat treatment.
In the present invention, lathe pull bar 1 drives pull bar round nut 2, expansion core 12, disk spring 14, end face pressure ring 15, adjusting nut 16 to move back and forth by stretching screw 17.In gear, swollen elastic component 11 is arranged on the end face of terminal pad 5 by seam and elastic component screw 8.When stretching screw 17 is released, external tooth thin-wall annular gear part 10 being installed to swollen elastic component 11 in gear is close to the end face of axial positioning sleeve 7, reinstalls opening pressing plate 13; When stretching screw 17 is tightened up, first expansion core 12 is blocked with swollen elastic component 11 taper-face contact in gear, along with stretching screw 17 is by continuation tension, disk spring 14 is compressed, the axial force produced makes swollen elastic component 11 distending in gear by expansion core 12, fit with thin-wall annular gear part 10, eliminate assemblage gap therebetween; After opening pressing plate 13 and the end contact of thin-wall annular gear part 10 also compress, disk spring 14 is no longer compressed, and now just completes the clamping to thin-wall annular gear part 10, and clamping action mainly compresses by end face.The pressure of disk spring can be adjusted by the reed quantity of disk spring and adjusting nut 16, and the pressure of disk spring and end face thrust sum equal the pulling force of lathe pull bar.
In middle gear of the present invention, the expansion of swollen elastic component 11 only eliminates assemblage gap, tension force is very little, clamping action mainly compresses by end face; thin-wall annular gear part 10 is very little by the radial deformation after clamping; solve the clamping problem of thin-wall annular gear part, improve the machining accuracy of thin-wall annular gear part.
Claims (4)
1. the automatic fixture that in a thin-wall annular gear part, swollen location end face compress, it is characterized in that: terminal pad (5) terminal pad screw (6) is arranged on the spindle flange dish (4) of lathe, in gear, swollen elastic component (11) is arranged on the end face of terminal pad (5) by seam and elastic component screw (8); Axial positioning sleeve (7) is sleeved on swollen elastic component (11) outside in gear, is fixed on the end face of terminal pad (5) with positioning sleeve screw (9); In gear, swollen elastic component (11) is with internal taper hole, internal taper hole section is provided with open slot and forms conical surface expanding structure with expansion core (12), and the external tooth that thin-wall annular gear part (10) is contained in swollen elastic component (11) in gear is close to the end face of axial positioning sleeve (7); The butt end of stretching screw (17) is threaded with lathe pull bar (1), with pull bar round nut (2) axial locking, and with round nut lock-screw (3) by the locking of pull bar round nut (2) radial direction; Expansion core (12), disk spring (14), end face pressure ring (15) are contained in the taper end of stretching screw (17), and compress with adjusting nut (16); When stretching screw (17) is tightened up, end face pressure ring (15) provides axial thrust by disk spring (14) to expansion core (12), expansion core (12) makes swollen elastic component (11) distending in gear by the conical surface, fit with the internal tooth gapless of thin-wall annular gear part (10), then compress the end face of thin-wall annular gear part (10) by opening pressing plate (13).
2. the automatic fixture that in thin-wall annular gear part according to claim 1, swollen location end face compress, it is characterized in that: in described gear, the profile of the internal taper hole section of swollen elastic component (11) is external gear, described internal taper hole section is provided with decile open slot, described external gear is non-fully gear, the position of open slot does not have gear teeth, and under not swelling state, the profile of tooth of described external gear coordinates with the ring gear tooth gaps of processed thin-wall annular gear part (10).
3. the automatic fixture that in thin-wall annular gear part according to claim 1 and 2, swollen location end face compress, is characterized in that: the endoporus matched in clearance of swollen elastic component (11) in the left end external cylindrical surface of described expansion core (12) and gear; Stretching screw (17) is through the endoporus of expansion core (12); Described disk spring (14) is arranged between expansion core (12) and end face pressure ring (15), described disk spring (14) be contained in expansion core (12) inner chamber in and stretch out one section, expansion core (12) can be adjusted accordingly by the reed quantity of adjustment disk spring (14) and adjusting nut (16) by promoting the tension force that in gear, swollen elastic component (11) applies to described thin-wall annular gear part (10).
4. the automatic fixture that in thin-wall annular gear part according to claim 1, swollen location end face compress, is characterized in that: in described gear, swollen elastic component (11) has elasticity, and material is spring steel, and through heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510628917.0A CN105127811B (en) | 2015-09-25 | 2015-09-25 | The automatic fixture that swollen positioning and end face are compressed in thin-wall annular gear part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510628917.0A CN105127811B (en) | 2015-09-25 | 2015-09-25 | The automatic fixture that swollen positioning and end face are compressed in thin-wall annular gear part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105127811A true CN105127811A (en) | 2015-12-09 |
| CN105127811B CN105127811B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510628917.0A Active CN105127811B (en) | 2015-09-25 | 2015-09-25 | The automatic fixture that swollen positioning and end face are compressed in thin-wall annular gear part |
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| CN (1) | CN105127811B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415008A (en) * | 2015-12-11 | 2016-03-23 | 江西昌河航空工业有限公司 | Elastic locating and clamping device with reset function |
| CN107127619A (en) * | 2017-06-30 | 2017-09-05 | 天津天海同步科技有限公司 | A kind of hot post-processing recessing fixture of high-precise synchronization device gear ring |
| CN107127778A (en) * | 2017-07-13 | 2017-09-05 | 安徽航大智能科技有限公司 | A kind of new energy electric machine casing positions gripping apparatus |
| CN107891162A (en) * | 2017-12-13 | 2018-04-10 | 合肥鼎聚精密制造有限责任公司 | The automatic fixture of thin side plate end face recessing |
| CN108861893A (en) * | 2018-08-29 | 2018-11-23 | 陕西国防工业职业技术学院 | Sleeve clamping device |
| CN110205470A (en) * | 2019-06-18 | 2019-09-06 | 北京航空航天大学 | A kind of fixture of heat treatment of thin-wall annular gear |
| CN110712050A (en) * | 2018-07-11 | 2020-01-21 | 无锡安尔达机械有限公司 | Quick clamping device for groove milling of metal sealing ring |
| CN112705966A (en) * | 2020-11-25 | 2021-04-27 | 河南航天液压气动技术有限公司 | Internal supporting and clamping fixture for precise thin-walled piece |
| CN112894406A (en) * | 2021-01-25 | 2021-06-04 | 中国航发贵州黎阳航空动力有限公司 | Tool for machining thin-wall support ring of aero-engine |
| CN113172550A (en) * | 2021-05-18 | 2021-07-27 | 济南四机数控机床有限公司 | Expansion clamp for workpiece on grinding machine |
| CN114310411A (en) * | 2021-12-28 | 2022-04-12 | 太原重工股份有限公司 | Arbitrary angle expanding device for fixed angle head and using method thereof |
| CN114378514A (en) * | 2021-12-30 | 2022-04-22 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Expansion adjustable positioning head assembly for aviation heat exchanger welding fixture |
| CN117102907A (en) * | 2023-10-24 | 2023-11-24 | 广州德马威工业装备制造有限公司 | High-precision flexible composite liquid expansion tool clamp for thin-wall workpiece |
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| CN205201113U (en) * | 2015-09-25 | 2016-05-04 | 合肥波林新材料股份有限公司 | Automatic clamp that location and terminal surface of expanding in thin wall ring gear part compressed tightly |
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| WO2013093801A1 (en) * | 2011-12-22 | 2013-06-27 | Spl Soluzioni S.R.L. | Grip device for locking cylindrical metallic bodies to be machined by means of machine tools |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415008A (en) * | 2015-12-11 | 2016-03-23 | 江西昌河航空工业有限公司 | Elastic locating and clamping device with reset function |
| CN107127619A (en) * | 2017-06-30 | 2017-09-05 | 天津天海同步科技有限公司 | A kind of hot post-processing recessing fixture of high-precise synchronization device gear ring |
| CN107127778A (en) * | 2017-07-13 | 2017-09-05 | 安徽航大智能科技有限公司 | A kind of new energy electric machine casing positions gripping apparatus |
| CN107891162B (en) * | 2017-12-13 | 2023-12-22 | 合肥鼎聚精密制造有限责任公司 | Automatic clamp for grooving end surfaces of thin side plates |
| CN107891162A (en) * | 2017-12-13 | 2018-04-10 | 合肥鼎聚精密制造有限责任公司 | The automatic fixture of thin side plate end face recessing |
| CN110712050A (en) * | 2018-07-11 | 2020-01-21 | 无锡安尔达机械有限公司 | Quick clamping device for groove milling of metal sealing ring |
| CN108861893A (en) * | 2018-08-29 | 2018-11-23 | 陕西国防工业职业技术学院 | Sleeve clamping device |
| CN110205470A (en) * | 2019-06-18 | 2019-09-06 | 北京航空航天大学 | A kind of fixture of heat treatment of thin-wall annular gear |
| CN112705966A (en) * | 2020-11-25 | 2021-04-27 | 河南航天液压气动技术有限公司 | Internal supporting and clamping fixture for precise thin-walled piece |
| CN112894406A (en) * | 2021-01-25 | 2021-06-04 | 中国航发贵州黎阳航空动力有限公司 | Tool for machining thin-wall support ring of aero-engine |
| CN113172550B (en) * | 2021-05-18 | 2022-08-12 | 济南四机数控机床有限公司 | Expansion clamp for workpiece on grinding machine |
| CN113172550A (en) * | 2021-05-18 | 2021-07-27 | 济南四机数控机床有限公司 | Expansion clamp for workpiece on grinding machine |
| CN114310411A (en) * | 2021-12-28 | 2022-04-12 | 太原重工股份有限公司 | Arbitrary angle expanding device for fixed angle head and using method thereof |
| CN114378514A (en) * | 2021-12-30 | 2022-04-22 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Expansion adjustable positioning head assembly for aviation heat exchanger welding fixture |
| CN117102907A (en) * | 2023-10-24 | 2023-11-24 | 广州德马威工业装备制造有限公司 | High-precision flexible composite liquid expansion tool clamp for thin-wall workpiece |
| CN117102907B (en) * | 2023-10-24 | 2024-01-16 | 广州德马威工业装备制造有限公司 | High-precision flexible composite liquid expansion tool clamp for thin-wall workpiece |
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