CN113385752A - Positioning and clamping device suitable for single-head screw pump rotor machining - Google Patents
Positioning and clamping device suitable for single-head screw pump rotor machining Download PDFInfo
- Publication number
- CN113385752A CN113385752A CN202110775687.6A CN202110775687A CN113385752A CN 113385752 A CN113385752 A CN 113385752A CN 202110775687 A CN202110775687 A CN 202110775687A CN 113385752 A CN113385752 A CN 113385752A
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- China
- Prior art keywords
- outer shell
- clamping
- positioning
- piston plate
- driving disc
- 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.)
- Pending
Links
- 238000003754 machining Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 210000000078 claw Anatomy 0.000 claims description 8
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003801 milling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/16158—Jaws movement actuated by coaxial conical surfaces
- B23B31/16179—Jaws movement actuated by coaxial conical surfaces using fluid-pressure means to actuate the gripping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a positioning and clamping device suitable for machining a single-head screw pump rotor, which comprises a machine tool bed body, a workbench and a clamping mechanism, wherein the clamping mechanism comprises a base, two sealing covers, an outer shell, an inner shell, a piston plate, a sealing plate, a driving disc and a plurality of clamping jaws, the inner shell is sleeved in the outer shell, a working cavity is formed between the outer shell and the inner shell, the driving disc, the sealing plate and the piston plate are sequentially arranged in the working cavity, and a first air hole and a second air hole are formed in the outer shell. According to the invention, the first air hole and the second air hole are connected with the air source, air is introduced to push the piston plate to reciprocate along the axis direction of the inner shell, so that the driving disc is driven to reciprocate, and the plurality of clamping jaws are driven to synchronously slide along the wedge-shaped grooves on the driving disc, so that the clamping jaws are contracted and expanded, further, the workpiece is automatically clamped and loosened, the workpiece is simple and quick to install and operate, the workpiece can be effectively clamped, and the workpiece processing precision is ensured.
Description
Technical Field
The invention relates to the technical field of tool fixtures, in particular to a positioning and clamping device suitable for machining a rotor of a single-head screw pump.
Background
The whirling mill is a cutting device for machining threads, worms and spherical surfaces at high speed matched with a numerical control machine, is a hard alloy forming blade arranged on a high-speed rotating cutter head and is used for milling threads on a workpiece. Because the milling speed is high, the processing efficiency is high, and the ultra-high speed cutting of dry cutting, heavy-load cutting and difficult-to-process materials can be realized. Because of its high rotational speed, a stabilizing device for fixing a workpiece to be machined is particularly important. Particularly, when a single-head screw pump rotor is machined, the workpiece is long in length and variable in diameter, and the effect of stabilizing the workpiece cannot be achieved by adopting a conventional center positioning and clamping mode, so that the machining precision of the workpiece is influenced.
Therefore, it is one of the technical problems to be solved in the art to provide a positioning and clamping device suitable for machining a rotor of a single-head screw pump, which can quickly stabilize a workpiece and ensure the machining precision of the workpiece.
Disclosure of Invention
In view of the above, the present invention provides a positioning and clamping device suitable for machining a rotor of a single-head screw pump, and aims to solve the above-mentioned disadvantages.
In order to solve the technical problems, the invention adopts the following technical scheme:
a positioning and clamping device suitable for machining a rotor of a single-head screw pump comprises:
a machine tool body;
a work table; the workbench is slidably arranged on the guide rails on two sides of the machine tool body;
a clamping mechanism; the clamping mechanism comprises a base, two sealing covers, an outer shell, an inner shell, a piston plate, a sealing plate, a driving disc and a plurality of clamping jaws; the bottom end of the base is fixedly connected to the top end of the workbench; the outer shell is fixedly connected to the upper end of the base; the inner shell is sleeved inside the outer shell and is coaxially arranged with the outer shell; a working cavity is formed between the outer shell and the inner shell; the two sealing covers are respectively and fixedly connected to the front end and the rear end of the working cavity; the driving disc, the sealing plate and the piston plate are sequentially arranged in the working cavity; the piston plate is connected with the driving disc through a connecting sleeve; the clamping jaws can be obliquely and slidably distributed at the front end of the driving disc in an annular array; a guide hole matched with the clamping jaw is formed in the wall body of the inner shell; a first air hole and a second air hole are formed in the outer shell; and the first air hole and the second air hole are respectively positioned at two sides of the piston plate.
The beneficial effect of this technical scheme is: firstly, the movable workbench drives the clamping mechanism to slide along guide rails on two sides of a machine tool body, the position of the clamping mechanism is adjusted to be matched with a workpiece needing to be clamped, then the movable workbench is connected with an air source through the first air hole and the second air hole, air is introduced to push the piston plate to reciprocate, so that the driving disc is driven to move, the plurality of clamping jaws are driven to contract or open synchronously, automatic clamping and loosening of the workpiece are achieved, workpiece mounting operation is simple and rapid, the workpiece can be clamped effectively, and machining precision is guaranteed.
Preferably, the end of each jaw is detachably provided with a clamping member.
The beneficial effect of this technical scheme is: the clamping pieces with different specifications are replaced, so that the machining requirements of workpieces with different sizes can be met, and the application range of the device is widened.
Preferably, the front end of the driving disc is provided with a plurality of wedge-shaped grooves; correspondingly, the clamping jaw is provided with a wedge-shaped part matched with the wedge-shaped groove; the wedge-shaped grooves are arranged in one-to-one correspondence with the claws.
Preferably, sealing rings are arranged between the sealing plate and the contact surfaces of the outer shell and the inner shell, between the piston plate and the contact surfaces of the outer shell and the inner shell, and between the sealing plate and the contact surfaces of the outer shell and the connection.
The beneficial effect of this technical scheme is: the sealing performance of the device is improved, and the phenomenon that the working clamping stability is influenced by air leakage is avoided.
Preferably, a driving device is further arranged on the inner side wall of the machine tool body; the output end of the driving device is provided with a driving rod; the other end of the driving rod is fixedly connected to the lower end of the workbench.
Preferably, the driving device comprises a motor, a ball screw and a sliding table; an output shaft of the motor is fixedly connected to one end of the ball screw through a coupler; the sliding table is connected to the ball screw through a nut.
The technical effect of the technical scheme is as follows: through motor drive ball screw to drive the slip removal, and then drive the workstation and remove, realize workstation automatically move, easy operation, swift.
Compared with the prior art, the invention has the following technical effects: the motor drives the ball screw to drive the ball screw to slide and further drive the workbench to move to a preset position, automatic control is achieved, operation is convenient and fast, meanwhile, the first air hole and the second air hole are connected with an air source, air is introduced, the piston plate is pushed to reciprocate along the axis direction of the inner shell, the driving disc is driven to reciprocate, the plurality of clamping jaws are driven to synchronously slide along the wedge-shaped groove on the driving disc, contraction and expansion of the clamping jaws are achieved, automatic clamping and loosening of workpieces are achieved, mounting and operation of the workpieces are simple and fast, the workpieces can be effectively clamped, and machining accuracy of the workpieces is guaranteed.
Drawings
FIG. 1 is an isometric view of a locating and clamping device suitable for single head screw pump rotor machining in accordance with the present invention;
FIG. 2 is a front view of a positioning and clamping device suitable for machining a rotor of a single-head screw pump according to the present invention;
FIG. 3 is a schematic structural diagram of a driving device according to the present invention;
FIG. 4 is a schematic structural view of a clamping mechanism of the present invention;
FIG. 5 is a schematic structural view of a drive disk of the present invention;
FIG. 6 is a schematic view of the jaw configuration of the present invention;
FIG. 7 is a schematic structural view of the inner housing of the present invention;
FIG. 8 is a schematic structural view of a working chamber of the present invention;
in the figure: 1. a work table; 2. a clamping mechanism; 21. a base; 22. a sealing cover; 23. an outer housing; 231. a first air hole; 232. a second air hole; 24. an inner housing; 241. a guide hole; 25. a piston plate; 26. a sealing plate; 27. a drive disc; 271. a wedge-shaped groove; 28. a claw; 3. a machine tool body; 4. a working chamber; 5. connecting sleeves; 6. a clamping member; 7. a seal ring; 8. a drive device; 81. a motor; 82. a ball screw; 83. a sliding table; 9. a drive rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, the invention discloses a positioning and clamping device suitable for processing a single-head screw pump rotor, which comprises:
a machine tool body 3;
a work table 1; the workbench 1 is slidably arranged on guide rails at two sides of a machine tool body 3;
a clamping mechanism 2; the clamping mechanism 2 comprises a base 21, 2 sealing covers 22, an outer shell 23, an inner shell 24, a piston plate 25, a sealing plate 26, a driving disc 27 and 4 clamping jaws 28; the bottom end of the base 21 is fixedly connected to the top end of the workbench 1; the outer shell 23 is fixedly connected to the upper end of the base 21, and two ends of the outer shell are symmetrically arranged along the middle part of the base 21; the 2 sealing covers 22 are respectively fixedly connected to the front end and the rear end of the outer shell 23 through bolts; the inner shell 24 is sleeved inside the outer shell 23 and is coaxially arranged with the outer shell 23; the front end and the rear end of the inner shell 24 are fixedly connected to the inner side walls of the 2 sealing covers 22 through bolts, so that a closed working cavity 4 is formed between the outer shell 23 and the inner shell 24; a driving disk 27, a sealing plate 26 and a piston plate 25 are sequentially arranged in the working cavity 4 from front to back; the driving disc 27, the sealing plate 26 and the piston plate 25 are all of circular ring structures; the driving plate 27 and the piston plate 25 are slidably sleeved on the outer side wall of the inner shell 24; the outer wall of the inner shell 24 is also sleeved with a connecting sleeve 5; the connecting sleeve 5 is positioned between the driving disc 27 and the piston plate 25, and the front end and the rear end of the connecting sleeve are respectively fixedly connected with the driving disc 27 and the piston plate 25; the outer side of the sealing plate 26 is fixedly connected to the inner wall of the outer shell 23, and the inner side of the sealing plate is positioned above the top end of the connecting sleeve; the 4 claws 28 are all evenly distributed at the front end of the driving disc 27 in an annular array in an inclined sliding way; a guide hole 241 matched with the clamping jaw is arranged on the wall body of the inner shell 24; the outer shell 23 is provided with a first air hole 231 and a second air hole 232; and the first air hole 231 and the second air hole 232 are respectively located at both sides of the piston plate 25 for introducing air to push the piston plate 25 to reciprocate.
In the embodiment, the end part of each clamping jaw 28 is detachably provided with a clamping piece 6, so that clamping pieces with different sizes can be conveniently replaced to meet the processing requirements of workpieces with different outer diameter sizes.
In the present embodiment, the front end of the driving disc 27 is provided with 4 wedge grooves 271; correspondingly, the claws 28 are provided with wedge-shaped portions adapted to the wedge-shaped grooves 271 so that the claws 28 can slide obliquely along the wedge-shaped grooves 271 of the drive disc.
In the present embodiment, sealing rings 7 are provided between the sealing cover 22 and the contact surfaces of the outer casing 23 and the inner casing 24, between the piston plate 25 and the contact surfaces of the outer casing 23 and the inner casing 24, and between the sealing plate 26 and the contact surfaces of the outer casing 23 and the connecting sleeve 5, for preventing gas leakage, resulting in insufficient pressure.
In the embodiment, a driving device 8 is further arranged on the inner side wall of the machine tool body 3; the output end of the driving device 8 is provided with a driving rod 9; the other end of the driving rod 9 is fixedly connected to the lower end of the workbench 1.
In the present embodiment, the driving device 8 includes a motor 81, a ball screw 82, and a slide table 83; an output shaft of the motor 81 is fixedly connected to one end of the ball screw 82 through a coupling; the slide table 83 is connected to the ball screw 82 by a nut.
In the present embodiment, the inner side of the sealing cover 22 adjacent to the piston plate 25 and the side of the sealing plate 26 adjacent to the piston plate 25 are provided with protrusions for limiting the stroke of the piston plate.
In other embodiments, the number of the claws 28 and the wedge grooves 271 can be designed according to actual requirements.
The working principle is as follows: (1) after one end of a workpiece is clamped by a spindle end of a machine tool, a motor 81 is started to drive a ball screw 82 to rotate, so that a sliding table 83 is driven to move, a workbench 1 is driven to move towards the workpiece until the workbench reaches a specified position, and the motor is turned off; (2) gas is introduced through the second air hole 232 to push the piston plate 25 to move backwards, the connecting sleeve 5 drives the driving disc 27 to move backwards, the driving disc 27 drives 4 clamping jaws 28 to simultaneously move towards the workpiece through a wedge-shaped structure between the driving disc and the clamping jaws 28, so that the clamping part 6 is driven to move towards the workpiece, the other end of the workpiece is clamped, and the workpiece is fixed; finishing the work piece processing, when needing orientation work piece, stopping to ventilate to second gas pocket 232, let in gas through first gas pocket 231 simultaneously, drive piston plate 25 moves forward, drive-disc 27 forward movement driving-disc 27, through its and jack catch 28 between wedge structure, drive 4 jack catches 28 and keep away from the work piece simultaneously to drive clamping piece 6 and loosen the work piece, and then take off the work piece.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (6)
1. The utility model provides a positioning and clamping device suitable for single-head screw pump rotor processing which characterized in that includes:
a machine tool body (3);
a table (1); the workbench (1) is slidably arranged on guide rails on two sides of the machine tool body (3);
a clamping mechanism (2); the clamping mechanism (2) comprises a base (21), two sealing covers (22), an outer shell (23), an inner shell (24), a piston plate (25), a sealing plate (26), a driving disc (27) and a plurality of clamping jaws (28); the bottom end of the base (21) is fixedly connected to the top end of the workbench (1); the outer shell (23) is fixedly connected to the upper end of the base (21); the inner shell (24) is sleeved in the outer shell (23) and is coaxially arranged with the outer shell (23); a working chamber (4) is formed between the outer shell (23) and the inner shell (24); the two sealing covers (22) are respectively and fixedly connected to the front end and the rear end of the working cavity (4); the driving disc (27), the sealing plate (26) and the piston plate (25) are sequentially arranged in the working cavity (4); the piston plate (25) is connected with the driving disc (27) through a connecting sleeve (5); a plurality of clamping jaws (28) are uniformly distributed at the front end of the driving disc (27) in an annular array in an inclined sliding manner; a guide hole (241) matched with the clamping jaw is formed in the wall body of the inner shell (24); a first air hole (231) and a second air hole (232) are formed in the outer shell (23); and the first air hole (231) and the second air hole (232) are respectively located at both sides of the piston plate (25).
2. A positioning and clamping device, suitable for single-head screw pump rotor machining, according to claim 1, characterized in that the end of each jaw (28) is removably provided with a clamping element (6).
3. The positioning and clamping device for machining the rotor of the single-head screw pump according to claim 1, wherein the front end of the driving disc (27) is provided with a plurality of wedge-shaped grooves (271); correspondingly, the claw (28) is provided with a wedge-shaped part matched with the wedge-shaped groove (271); the wedge-shaped grooves (271) and the claws (28) are arranged in a one-to-one correspondence manner.
4. A positioning and clamping device suitable for single-head screw pump rotor machining according to claim 1, characterized in that sealing rings (7) are arranged between the sealing cover (22) and the contact surfaces of the outer shell (23) and the inner shell (24), between the piston plate (25) and the contact surfaces of the outer shell (23) and the inner shell (24), and between the sealing plate (26) and the contact surfaces of the outer shell (23) and the connecting sleeve (5).
5. The positioning and clamping device suitable for machining the rotor of the single-head screw pump according to claim 1, wherein a driving device (8) is further arranged on the inner side wall of the machine tool body (3); the output end of the driving device (8) is provided with a driving rod (9); the other end of the driving rod (9) is fixedly connected to the lower end of the workbench (1).
6. The positioning and clamping device suitable for machining the rotor of the single-head screw pump according to claim 5, wherein the driving device (8) comprises a motor (81), a ball screw (82) and a sliding table (83); an output shaft of the motor (81) is fixedly connected to one end of the ball screw (82) through a coupler; the sliding table (83) is connected to the ball screw (82) through a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110775687.6A CN113385752A (en) | 2021-07-08 | 2021-07-08 | Positioning and clamping device suitable for single-head screw pump rotor machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110775687.6A CN113385752A (en) | 2021-07-08 | 2021-07-08 | Positioning and clamping device suitable for single-head screw pump rotor machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113385752A true CN113385752A (en) | 2021-09-14 |
Family
ID=77625509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110775687.6A Pending CN113385752A (en) | 2021-07-08 | 2021-07-08 | Positioning and clamping device suitable for single-head screw pump rotor machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113385752A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871961A (en) * | 2022-04-25 | 2022-08-09 | 北京凝华科技有限公司 | Practice thrift clamping device of consumptive material |
| CN115389137A (en) * | 2022-10-27 | 2022-11-25 | 烟台中宇航空液压有限公司 | Test experiment device for simulating leakage fault of aviation hydraulic pipeline |
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| FR2657804A1 (en) * | 1990-02-05 | 1991-08-09 | Dimeco Enona | AUTOMOID, GAS CLAMP FOR MISCELLANEOUS PARTS. |
| CN201432117Y (en) * | 2009-04-30 | 2010-03-31 | 江苏无锡建华机床附件集团有限公司 | Front-located air chuck |
| CN204747543U (en) * | 2015-04-10 | 2015-11-11 | 常州元光实业有限公司 | Built -in air chuck |
| CN205057103U (en) * | 2015-10-28 | 2016-03-02 | 四川承继伟业石油钢管有限公司 | Semi -automatic chuck is used to lathe |
| CN205218562U (en) * | 2015-12-30 | 2016-05-11 | 北京北方红旗精密机械制造有限公司 | Automatic locking unit and have its automatic locking mechanism |
| CN205684752U (en) * | 2016-06-03 | 2016-11-16 | 南阳淅减汽车减振器有限公司 | A kind of lathe air spider |
| CN107511539A (en) * | 2016-06-16 | 2017-12-26 | 上海瓦姆石油天然气管业有限公司 | A kind of machine for threading steel pipe automatic station-keeping system |
| CN108723499A (en) * | 2018-07-24 | 2018-11-02 | 张惠元 | A kind of steel pipe pipe installation |
| CN208427755U (en) * | 2018-07-10 | 2019-01-25 | 山东理工职业学院 | Cylindrical work drilling processing tooling |
| CN109732111A (en) * | 2019-02-28 | 2019-05-10 | 东莞市巨冈机械工业有限公司 | A kind of monodactyle air spider |
| CN212019434U (en) * | 2020-04-21 | 2020-11-27 | 烟台润江机床附件有限公司 | Pneumatic chuck for machining sucker rod |
| CN212239474U (en) * | 2020-04-21 | 2020-12-29 | 扬州黎明钻具有限公司 | Trenchless drill rod double-head lathe drill rod clamp |
| CN212598963U (en) * | 2020-07-07 | 2021-02-26 | 烟台润江机床附件有限公司 | Fixed centering damping chuck |
| CN213003820U (en) * | 2020-09-17 | 2021-04-20 | 郑州恒通空气炮有限公司 | Cutting support for air storage tank of air cannon |
-
2021
- 2021-07-08 CN CN202110775687.6A patent/CN113385752A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2657804A1 (en) * | 1990-02-05 | 1991-08-09 | Dimeco Enona | AUTOMOID, GAS CLAMP FOR MISCELLANEOUS PARTS. |
| CN201432117Y (en) * | 2009-04-30 | 2010-03-31 | 江苏无锡建华机床附件集团有限公司 | Front-located air chuck |
| CN204747543U (en) * | 2015-04-10 | 2015-11-11 | 常州元光实业有限公司 | Built -in air chuck |
| CN205057103U (en) * | 2015-10-28 | 2016-03-02 | 四川承继伟业石油钢管有限公司 | Semi -automatic chuck is used to lathe |
| CN205218562U (en) * | 2015-12-30 | 2016-05-11 | 北京北方红旗精密机械制造有限公司 | Automatic locking unit and have its automatic locking mechanism |
| CN205684752U (en) * | 2016-06-03 | 2016-11-16 | 南阳淅减汽车减振器有限公司 | A kind of lathe air spider |
| CN107511539A (en) * | 2016-06-16 | 2017-12-26 | 上海瓦姆石油天然气管业有限公司 | A kind of machine for threading steel pipe automatic station-keeping system |
| CN208427755U (en) * | 2018-07-10 | 2019-01-25 | 山东理工职业学院 | Cylindrical work drilling processing tooling |
| CN108723499A (en) * | 2018-07-24 | 2018-11-02 | 张惠元 | A kind of steel pipe pipe installation |
| CN109732111A (en) * | 2019-02-28 | 2019-05-10 | 东莞市巨冈机械工业有限公司 | A kind of monodactyle air spider |
| CN212019434U (en) * | 2020-04-21 | 2020-11-27 | 烟台润江机床附件有限公司 | Pneumatic chuck for machining sucker rod |
| CN212239474U (en) * | 2020-04-21 | 2020-12-29 | 扬州黎明钻具有限公司 | Trenchless drill rod double-head lathe drill rod clamp |
| CN212598963U (en) * | 2020-07-07 | 2021-02-26 | 烟台润江机床附件有限公司 | Fixed centering damping chuck |
| CN213003820U (en) * | 2020-09-17 | 2021-04-20 | 郑州恒通空气炮有限公司 | Cutting support for air storage tank of air cannon |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114871961A (en) * | 2022-04-25 | 2022-08-09 | 北京凝华科技有限公司 | Practice thrift clamping device of consumptive material |
| CN115389137A (en) * | 2022-10-27 | 2022-11-25 | 烟台中宇航空液压有限公司 | Test experiment device for simulating leakage fault of aviation hydraulic pipeline |
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Application publication date: 20210914 |
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