CN113305616B - Lathe special fixture for processing inner hole and end face of telescope type workpiece - Google Patents
Lathe special fixture for processing inner hole and end face of telescope type workpiece Download PDFInfo
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- CN113305616B CN113305616B CN202110645711.4A CN202110645711A CN113305616B CN 113305616 B CN113305616 B CN 113305616B CN 202110645711 A CN202110645711 A CN 202110645711A CN 113305616 B CN113305616 B CN 113305616B
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- telescope
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- lathe
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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
- 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
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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
- B23Q2703/00—Work clamping
- B23Q2703/12—Accessories for attaching
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention provides a special fixture for a lathe for processing an inner hole and an end face of a telescope-shaped workpiece, wherein the rear end of a supporting disc is clamped on a lathe chuck, the lower part of the front end face of the supporting disc is fixedly connected with a supporting seat, the supporting seat is fixedly connected with the supporting seat through a connecting bolt penetrating through a positioning connecting hole, a cross beam is arranged on the positioning seat, a pressing plate is fixedly connected onto the cross beam, a jackscrew is arranged on the pressing plate, a vertically arranged chute is arranged on the cross beam, a pressing block capable of moving up and down along the chute is arranged in the chute, the front end of the jackscrew penetrates through a threaded hole on the pressing plate to be in threaded connection with the upper end of the pressing block in the chute, and the pressing block can be pushed to move up and down along the chute by rotating the jackscrew.
Description
Technical field:
the invention belongs to the technical field of machining and manufacturing of special-shaped workpieces, and particularly relates to a special fixture for a lathe for machining an inner hole and an end face of a telescope-shaped workpiece.
The background technology is as follows:
in the hydraulic system, the situation that the high-pressure oil way and the low-pressure oil way are required to be switched frequently occurs, the valve component for switching the high-pressure oil way and the low-pressure oil way is required to be arranged in the hydraulic system, the oil inlet of the valve component is respectively connected with the high-pressure oil way and the low-pressure oil way, the oil outlet of the valve component is communicated with the hydraulic system executing component, however, in the hydraulic system of some special equipment, the arrangement of the hydraulic oil way is very compact and firm due to the limitation of space and other factors, for example, in the hydraulic system of an airplane, wind power generation and the like, the space limitation is carried out, the distance between the high-pressure oil pipe and the low-pressure oil pipe with the oil inlet of the valve component is required to be strictly controlled, and the assembly difficulty caused by overlarge or overlarge oil pipe gap is avoided. The telescope-shaped workpiece belongs to a general workpiece, and has the advantages of large workpiece quantity requirement and high precision requirement.
At present, the manufacturing of the telescope-shaped workpiece mainly comprises the steps of casting the appearance of the workpiece by a casting method, and then machining an inner hole, threads and a connecting end face of the workpiece, wherein in order to ensure the installation precision of the telescope-shaped workpiece, the perpendicularity of the inner hole and the connecting end face must be ensured when the inner hole and the connecting end face of the workpiece are machined. At present, the machining of the workpiece is mainly finished by a boring machine, an inner hole is machined by the boring machine, and then the connecting end face is machined. Secondly, after the work in the workpiece is finished, the workpiece needs to be taken down from the boring machine, the connecting end face is processed by repositioning and clamping, the positioning is inconsistent, the perpendicularity between the inner hole of the workpiece and the connecting end face is not easy to ensure, and the subsequent installation and use are affected. Thirdly, the consistency of the workpieces produced in batches is poor, the universality is poor, and the replacement and maintenance of the subsequent workpieces are not facilitated. Fourth, of course, the workpiece can also be machined by adopting a turning and milling composite numerical control device, but the numerical control device has higher cost and easily causes the cost of the workpiece to rise.
Disclosure of Invention
In summary, in order to overcome the defects of the prior art, the invention provides the lathe special fixture for processing the inner hole and the end surface of the telescope-shaped workpiece, which can realize the processing of the inner hole and the end surface of the telescope-shaped workpiece by a common lathe and can realize the processing of the inner hole and the end surface of the telescope-shaped workpiece by one-time clamping, thereby effectively improving the processing efficiency of the workpiece, reducing the cost, simultaneously ensuring the verticality of the inner hole and the end surface of the workpiece and improving the general interchangeability of the workpiece.
In order to solve the technical problems, the technical scheme of the invention is realized as follows:
a special fixture for a lathe for processing an inner hole and an end face of a telescope-shaped workpiece, wherein: including supporting disk, supporting seat, positioning seat, crossbeam, clamp plate and compact heap, the rear end clamping of supporting disk on lathe chuck, the lower part fastening connection of the preceding terminal surface of supporting disk have the supporting seat, the supporting seat on be provided with the location connecting hole that is used for connecting the positioning seat and use, the positioning seat pass through the connecting bolt and the supporting seat fastening connection of dress in the location connecting hole, the positioning seat on be provided with the crossbeam that are used for supporting the clamp plate, wait to process telescope shape work piece location between positioning seat and crossbeam, the crossbeam on fastening connection have the clamp plate, be provided with the screw hole of wearing to adorn the jackscrew on the clamp plate, the crossbeam on be provided with the spout of vertical arrangement, be provided with the compact heap that can follow the spout and reciprocate in the spout, the lower extreme of compact heap be provided with V type indent, the front end of jackscrew pass the screw hole on the clamp plate and the upper end threaded connection of the compact heap in the spout, rotate the jackscrew and can promote the compact heap and reciprocate along the spout to compress tightly the crossbeam and wait to process telescope shape work piece between crossbeam and the positioning seat, wait to process the telescope shape work piece on two coaxial in the lathe chuck shape work piece.
The technical scheme of the invention can also be realized as follows: the upper part of the front end face of the supporting disc is provided with a balancing weight.
The technical scheme of the invention can also be realized as follows: the middle part of the positioning seat is provided with a positioning pin, the middle part of the telescope-shaped workpiece to be processed is provided with a positioning hole, and the telescope-shaped workpiece to be processed is positioned with the positioning seat through the positioning pin penetrating into the positioning hole and the bottom surface of the telescope-shaped workpiece to be processed.
The technical scheme of the invention can also be realized as follows: the center of the rear end face of the supporting disc is provided with an outer protruding shaft, and the supporting disc is connected with a lathe chuck through the outer protruding shaft.
The technical scheme of the invention can also be realized as follows: the cross-sectional shape of supporting seat be "7" style of calligraphy, including last horizontal plate and lower backup pad, go up the fixed upper end that sets up at the lower backup pad of horizontal plate, the lower backup pad on be provided with the locking screw hole that supporting disk fastening connection used and with the location pinhole that the supporting disk was fixed a position usefulness, last horizontal plate on be provided with two sets of locating connection holes that are used for connecting the locating seat usefulness, the locating seat is through wearing to adorn at locating connection downthehole connecting bolt and supporting seat fastening connection, two sets of locating connection holes correspond respectively two holes of telescope shape work piece of waiting to process, change the position of the locating connection hole that connecting bolt corresponds, can realize the processing switching of two holes of telescope shape work piece of waiting to process.
The technical scheme of the invention can also be realized as follows: reinforcing rib plates are arranged between the upper horizontal plate and the lower supporting plate of the supporting seat.
The technical scheme of the invention can also be realized as follows: the positioning seat comprises a bottom plate and two upright posts which are fixed on the bottom plate and are vertically arranged, through holes for penetrating and installing connecting bolts are formed in the bottom plates on the outer sides of the two upright posts, positioning pins are arranged on the bottom plate between the two upright posts, telescope-shaped workpieces to be processed are positioned and clamped on the bottom plate between the two upright posts, and two ends of the cross beam are respectively connected with the two upright posts through cylindrical pins.
The beneficial effects of the invention are as follows:
1. the invention can realize the processing of the inner hole and the end surface of the telescope-shaped workpiece by the common lathe, and can realize the processing of the inner hole and the end surface of the telescope-shaped workpiece by one-time clamping, thereby effectively improving the processing efficiency of the workpiece, reducing the cost, simultaneously ensuring the verticality of the inner hole and the end surface of the workpiece and improving the general interchangeability of the workpiece.
2. The center of the rear end face of the supporting disc is provided with the outer convex shaft, the firm connection between the supporting disc and the lathe chuck is realized through the outer convex shaft, the rotation centers of the clamp and the chuck are ensured to be consistent in the rotation process of the lathe, the coaxiality is ensured, and meanwhile, the safety accident can be effectively avoided.
3. The upper horizontal plate of the supporting seat is provided with two groups of positioning connecting holes, the two groups of positioning connecting holes correspond to the two inner holes of the telescope-shaped workpiece to be processed respectively, namely, when the left inner hole of the telescope-shaped workpiece is processed, the positioning seat is fastened and connected with the supporting seat through the connecting bolts penetrating through one group of positioning connecting holes, when the right inner hole of the telescope-shaped workpiece is processed, the positioning seat is fastened and connected with the supporting seat through the connecting bolts penetrating through the other group of positioning connecting holes, the connecting bolts are switched between the two groups of positioning connecting holes, so that the quick and accurate positioning and clamping of the two inner holes of the telescope-shaped workpiece can be realized quickly, the workpiece positioning and aligning time is shortened, the workpiece processing efficiency is effectively improved, the quick positioning of a large number of workpieces can be ensured, the positioning references are consistent, and the processed workpieces are ensured to have extremely high interchangeability.
4. The positioning seat is provided with the two positioning pins, the middle part of the telescope-shaped workpiece to be processed is provided with the positioning hole, and the workpiece and the positioning seat are positioned through the 'one-surface two pins', so that the telescope-shaped workpiece can be accurately and quickly positioned during processing, and the positioning is accurate.
5. The balancing weight is arranged, so that the eccentric mechanism is free from eccentricity in the rotation process, the deformation is small in the workpiece machining process, and the machined workpiece is high in qualification rate.
6. The invention has the advantages of simple structure, convenient use, simple and convenient clamping, ingenious conception and low cost, can realize the accurate positioning of telescope-shaped workpieces, avoids the deviation of the rotation center in the processing process of the workpieces, greatly reduces the processing rejection rate, saves working hours and improves the processing precision.
Description of the drawings:
FIG. 1 is a schematic view of the structure of a telescope-shaped workpiece;
FIG. 2 is a schematic left-hand view of FIG. 1;
FIG. 3 is a schematic view of the cross-sectional structure of A-A of FIG. 1;
FIG. 4 is a schematic diagram of the structure of the present invention;
FIG. 5 is a schematic side view of the present invention;
FIG. 6 is a schematic illustration of the present invention when machining the right side bore of a telescope-shaped workpiece.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 4, 5 and 6, a special fixture for a lathe for processing an inner hole and an end surface of a telescope-shaped workpiece comprises a supporting disc 1, a supporting seat 2, a positioning seat 3, a cross beam 4, a pressing plate 5 and a pressing block 6, wherein the supporting disc 1 is of a disc-shaped structure, an outer protruding shaft 11 is arranged in the center of the rear end surface of the supporting disc 1, and the supporting disc 1 is connected with a lathe chuck through the outer protruding shaft 11. The lower part fastening connection of the preceding terminal surface of supporting disk 1 has supporting seat 2, and the upper portion of the preceding terminal surface of supporting disk 1 is provided with balancing weight 9, and balancing weight 9 passes through bolt-up connection with supporting disk 1.
The cross-section shape of supporting seat 2 be "7" style of calligraphy, including last horizontal plate 21 and lower backup pad 22, go up horizontal plate 21 fixed setting in the upper end of lower backup pad 22, lower backup pad 22 on be provided with the locking screw hole 24 that supporting disk 1 fastening connection used and with the locating pin hole 23 that supporting disk 1 was fixed a position, last horizontal plate 21 on be provided with two sets of locating connection holes 7 that are used for connecting positioning seat 3, positioning seat 3 is through wearing the connecting bolt 12 of dress in locating connection holes 7 and supporting seat 2 fastening connection, two sets of locating connection holes 7 include four locating connection holes 7, four locating connection holes 7 are arranged in a word shape on last horizontal plate 21, be first locating connection holes 7, second locating connection holes 7, third locating connection holes 7 and fourth locating connection holes 7 from left to right in proper order, wherein first locating connection holes 7 and third locating connection holes 7 are a set of, when connecting bolt 12 pass two sets of locating connection holes 7 connection positioning seat 3 and supporting seat 2 and wait for processing the connecting the two sets of locating connection holes 7 of work piece, wait for processing the left side connecting hole and the locating connection hole of work piece of the connecting seat 7 is the processing the locating connection hole of the processing hole of the work piece side of the two sets of connecting seat side 3.
The positioning seat 3 comprises a bottom plate and two upright posts which are fixed on the bottom plate and are vertically arranged, through holes for penetrating and installing connecting bolts 12 are formed in the bottom plates on the outer sides of the two upright posts, the upper ends of the two upright posts are respectively connected with the two ends of the cross beam 4 through cylindrical pins, positioning pins 10 are arranged on the bottom plates between the two upright posts, positioning holes are formed in the middle of telescope-shaped workpieces to be processed, and the telescope-shaped workpieces to be processed are positioned with the positioning seat 3 through the positioning pins 10 penetrating and installed in the positioning holes and the bottom surfaces of the telescope-shaped workpieces to be processed.
The crossbeam 4 on fastening connection have clamp plate 5, the rear end face of crossbeam 4 be provided with the spout of vertical arrangement, clamp plate 5 cross-section shape be "7" style of calligraphy, its horizontal part is located the upper end of crossbeam 4, its vertical part is located the rear end of crossbeam 4, and vertical part passes through screw and crossbeam 4 fastening connection to realize the connection of clamp plate 5 and crossbeam 4, the horizontal part of clamp plate 5 is provided with jackscrew 8, the spout of crossbeam 4 in be provided with the compact heap 6 that can follow the spout and reciprocate, the lower extreme of compact heap 6 be provided with V type indent, the front end of jackscrew 8 pass the screw hole on clamp plate 5 and the upper end threaded connection of compact heap 6 in the spout, rotate jackscrew 8 and can promote compact heap 6 along the spout reciprocates, thereby compact the telescope shape work piece of waiting to process between crossbeam 4 and the locating seat 3, the telescope shape work piece of waiting to process is clamped behind locating seat 3, one of two holes of waiting to process telescope shape work piece and chuck coaxial.
When the lathe is used, the outer convex shaft 11 arranged at the rear end of the supporting disc 1 is clamped on the lathe chuck, then the installation position of the positioning seat 3 on the supporting seat 2 is adjusted, and the bolts for connecting the positioning seat 3 and the supporting seat 2 pass through the first positioning connecting hole 7 and the third positioning connecting hole 7 on the supporting seat 2. Then, the telescope-shaped workpiece to be processed is placed between the two upright posts of the positioning seat 3, the two positioning holes on the workpiece are sleeved on the two positioning pins 10 on the positioning seat 3, then the jackscrews 8 are screwed, the jackscrews 8 push the pressing blocks 6 to press the workpiece downwards, so that the clamping of the telescope-shaped workpiece is completed, and at the moment, the left inner hole of the telescope-shaped workpiece to be processed is coaxial with the lathe chuck and is used for processing the left inner hole.
Starting the lathe, namely machining the left inner hole of the telescope-shaped workpiece, after the left inner hole is machined, loosening the connecting bolt 12 of the positioning seat 3 and the supporting seat 2, integrally moving the positioning seat 3 and the workpiece to be machined clamped on the positioning seat 3, enabling the connecting bolt 12 for connecting the positioning seat 3 and the supporting seat 2 to pass through the second positioning connecting hole 7 and the fourth positioning connecting hole 7 on the supporting seat 2, at the moment, enabling the right inner hole of the telescope-shaped workpiece to be machined to be coaxial with a lathe chuck, at the moment, being used for machining the right inner hole, starting the lathe, and machining the right inner hole of the telescope-shaped workpiece. So far, the processing of the two inner holes of the telescope-shaped workpiece is finished, and at the moment, the connecting end face of the workpiece can be directly finish-turned under the condition that the workpiece is not disassembled.
In the whole processing process, the telescope-shaped workpiece to be processed can be processed by two inner holes and a connecting end surface without disassembly and assembly after clamping, the left inner hole is processed and the right inner hole is processed and switched, the positioning seat 3 and the supporting seat 2 are disassembled and assembled, and the workpiece is not disassembled and assembled, so that the consistency of the processing positioning references of the two inner holes and the connecting end surface of the telescope-shaped workpiece is ensured, and the perpendicularity of the two inner holes and the connecting end surface after processing is effectively ensured.
It should be noted that the above-mentioned embodiments illustrate rather than limit the technical solution of the present invention, and that those skilled in the art may substitute equivalents or other modifications made according to the prior art, without departing from the spirit and scope of the technical solution of the present invention, and are included in the scope of the claims.
Claims (6)
1. A special fixture for a lathe for processing an inner hole and an end face of a telescope-shaped workpiece is characterized in that: including supporting disk (1), supporting seat (2), positioning seat (3), crossbeam (4), clamp plate (5) and compact heap (6), the rear end clamping of supporting disk (1) on lathe chuck, the lower part fastening connection of the preceding terminal surface of supporting disk (1) has supporting seat (2), supporting seat (2) on be provided with location connecting hole (7) that are used for connecting positioning seat (3) usefulness, positioning seat (3) through wear connecting bolt (12) of dress in location connecting hole (7) and supporting seat (2) fastening connection, positioning seat (3) on be provided with crossbeam (4) that are used for supporting clamp plate (5) usefulness, telescope shape work piece location to be processed be between positioning seat (3) and crossbeam (4), crossbeam (4) on fastening connection have clamp plate (5), be provided with the screw hole that wears to adorn jackscrew (8) and use, crossbeam (4) on be provided with vertical spout that arranges, spout internal being provided with can follow spout and reciprocate connecting bolt (12) in positioning connecting hole (7), compression heap (6) on the slider (6) can be rotated on the screw hole (6) that the tip is provided with on the screw hole (6) that the tip is worn by the screw thread (8) of waiting to process, the tip (6) is passed on the screw thread groove (6) and the tip (6) of rotating, so as to compress the telescope-shaped workpiece to be processed between the beam (4) and the positioning seat (3), after the telescope-shaped workpiece to be processed is clamped on the positioning seat (3), one of two inner holes of the telescope-shaped workpiece to be processed is coaxial with the lathe chuck,
the cross-section shape of supporting seat (2) be "7" style of calligraphy, including last horizontal plate (21) and lower backup pad (22), go up horizontal plate (21) fixed setting in the upper end of lower backup pad (22), lower backup pad (22) on be provided with locking screw hole (24) and location pinhole (23) with the location of supporting disk (1) that support disk (1) fastening connection was used, last horizontal plate (21) on be provided with two sets of location connecting hole (7) that are used for connecting positioning seat (3), positioning seat (3) are through wearing connecting bolt (12) and supporting seat (2) fastening connection of dress in location connecting hole (7), two sets of location connecting hole (7) correspond respectively two holes of telescope shape work piece to be processed, change the position of location connecting hole (7) that connecting bolt (12) correspond, can realize the processing switch of two holes of telescope shape work piece to be processed.
2. The special fixture for a lathe for processing inner holes and end faces of telescope-shaped workpieces according to claim 1, wherein: the upper part of the front end surface of the supporting disc (1) is provided with a balancing weight (9).
3. The special fixture for a lathe for processing inner holes and end faces of telescope-shaped workpieces according to claim 1, wherein: the middle part of positioning seat (3) be provided with locating pin (10), the middle part of the telescope shape work piece of waiting to process is provided with the locating hole, the telescope shape work piece of waiting to process is through wearing locating pin (10) and the bottom surface and the positioning seat (3) of installing in the locating hole of waiting to process telescope shape work piece.
4. The special fixture for a lathe for processing inner holes and end faces of telescope-shaped workpieces according to claim 1, wherein: the center of the rear end face of the supporting disc (1) is provided with an outer convex shaft (11), and the supporting disc (1) is connected with a lathe chuck through the outer convex shaft (11).
5. The special fixture for a lathe for processing inner holes and end faces of telescope-shaped workpieces according to claim 1, wherein: reinforcing rib plates (25) are arranged between the upper horizontal plate (21) and the lower supporting plate (22) of the supporting seat (2).
6. A lathe special fixture for processing inner holes and end faces of telescope-shaped workpieces according to claim 3, characterized in that: the positioning seat (3) comprises a bottom plate and two upright posts which are fixed on the bottom plate and are vertically arranged, through holes for penetrating and installing connecting bolts (12) are formed in the bottom plate on the outer sides of the two upright posts, positioning pins (10) are arranged on the bottom plate between the two upright posts, telescope-shaped workpieces to be processed are positioned and clamped on the bottom plate between the two upright posts, and two ends of the cross beam (4) are respectively connected with the two upright posts through cylindrical pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110645711.4A CN113305616B (en) | 2021-06-10 | 2021-06-10 | Lathe special fixture for processing inner hole and end face of telescope type workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110645711.4A CN113305616B (en) | 2021-06-10 | 2021-06-10 | Lathe special fixture for processing inner hole and end face of telescope type workpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113305616A CN113305616A (en) | 2021-08-27 |
| CN113305616B true CN113305616B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110645711.4A Active CN113305616B (en) | 2021-06-10 | 2021-06-10 | Lathe special fixture for processing inner hole and end face of telescope type workpiece |
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| CN (1) | CN113305616B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551794A (en) * | 2014-12-15 | 2015-04-29 | 苏州用朴合金工具有限公司 | Vehicle casing part clamp |
| CN204771765U (en) * | 2015-06-26 | 2015-11-18 | 柳州长虹数控机床有限责任公司 | Automobile -used clamping device of hydraulic cylinder cylinder end |
| CN205765154U (en) * | 2016-07-08 | 2016-12-07 | 无锡科技职业学院 | A kind of air filter valve body vehicle clamper |
| CN107186526A (en) * | 2017-07-18 | 2017-09-22 | 邢台中伟卓特液压科技有限公司 | Gear-box in-car hole tool |
| CN108747520B (en) * | 2018-05-29 | 2020-03-31 | 江苏大学 | Adjustable clamp based on blade root inclined plane positioning |
| CN110142633A (en) * | 2019-05-28 | 2019-08-20 | 南京信息职业技术学院 | The work-piece fixation clamp that lathe is processed with workpiece air inlet |
| CN212496650U (en) * | 2020-06-16 | 2021-02-09 | 河南陶恩机械有限公司 | Flange car anchor clamps in valve body |
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