CN113043033B - Electric main shaft broach mechanism, electric main shaft and machine tool - Google Patents
Electric main shaft broach mechanism, electric main shaft and machine tool Download PDFInfo
- Publication number
- CN113043033B CN113043033B CN202110466590.7A CN202110466590A CN113043033B CN 113043033 B CN113043033 B CN 113043033B CN 202110466590 A CN202110466590 A CN 202110466590A CN 113043033 B CN113043033 B CN 113043033B
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- China
- Prior art keywords
- pull rod
- bevel gear
- disc spring
- chuck
- piston
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/15553—Tensioning devices or tool holders, e.g. grippers
-
- 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
Abstract
The invention discloses an electric spindle broach mechanism, an electric spindle and a machine tool, which comprise: the shaft core is provided with a shaft core inner hole; a chuck; the pull rod is arranged in the inner hole of the shaft core, a first bevel gear is arranged at the upper end of the pull rod, and the lower end of the pull rod is in threaded connection with the chuck; a pull rod reset assembly; the driving cylinder is provided with a piston, and the lower end of the piston is provided with a transverse shaft hole; the pull rod rotating assembly comprises a rack, a driven gear, a rotating shaft and a second bevel gear, the rotating shaft is arranged in the transverse shaft hole, the driven gear and the second bevel gear are coaxially connected to the rotating shaft, and the driven gear is matched with the rack; when the piston of the driving cylinder extends downwards or retracts upwards, the driven gear is in transmission fit with the rack, the driven gear drives the rotating shaft and the second bevel gear to rotate, and the second bevel gear is in transmission fit with the first bevel gear to enable the pull rod to rotate around the axis, so that the chuck is screwed out of or screwed into the pull rod. The automatic tool changing device realizes the automatic tool changing function, does not need workers to manually change the chuck any more, is more convenient to use, and saves the manual maintenance cost.
Description
Technical Field
The invention is used in the field of machine tools, and particularly relates to an accessory of a machine tool, in particular to an electric spindle broach mechanism, an electric spindle and a machine tool.
Background
In the prior art, the tool changing mode of the electric spindle generally adopts the following mode, after the piston moves downwards, the pull rod is pushed to move downwards, so that the chuck slightly moves out of the spindle core, and then the chuck is screwed out by a user. After maintenance, the chuck is screwed in by hands. The air pressure above the piston is released, and the piston moves upwards. The pull rod returns to the original position under the action of the disc spring, so that the chuck is pulled tightly. Meanwhile, the clamping head needs to be replaced manually by a worker, which is very inconvenient.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art and provides an electric spindle broach mechanism, an electric spindle and a machine tool.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in a first aspect, an electric spindle broach mechanism includes:
the shaft core is provided with a shaft core inner hole, and the lower end of the shaft core inner hole is provided with a chuck mounting hole;
a chuck;
the pull rod is arranged in the inner hole of the shaft core, a first bevel gear is arranged at the upper end of the pull rod, and the lower end of the pull rod is in threaded connection with the chuck;
the pull rod resetting component is used for driving the pull rod to reset along the inner hole of the shaft core and tensioning the chuck on the chuck mounting hole;
the driving cylinder is provided with a piston for pushing the pull rod, and the lower end of the piston is provided with a transverse shaft hole;
the pull rod rotating assembly comprises a rack, a driven gear, a rotating shaft and a second bevel gear, the rack extends along the motion direction of the piston, the rotating shaft is installed in the transverse shaft hole, the driven gear and the second bevel gear are coaxially connected to the rotating shaft, and the driven gear is matched with the rack;
when the piston of the driving cylinder extends downwards or retracts upwards, the driven gear is in transmission fit with the rack, the driven gear drives the rotating shaft and the second bevel gear to rotate, and the second bevel gear is in transmission fit with the first bevel gear to enable the pull rod to rotate around the axis, so that the chuck is screwed out of or into the pull rod.
With reference to the first aspect, in certain implementations of the first aspect, the chuck is provided with a screw hole, and the lower end of the pull rod is provided with a screw head matched with the screw hole.
With reference to the first aspect and the implementations described above, in certain implementations of the first aspect, the pull rod return assembly includes a disc spring.
With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the pull rod resetting component further includes a disc spring cover, the disc spring and the disc spring cover are both sleeved outside the shaft core, and the disc spring cover abuts against the lower end surface of the first bevel gear under the action of the disc spring.
With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, a disc spring cover pressing structure is disposed at a lower end of the piston, and when the piston of the driving cylinder extends downward, before the first bevel gear contacts the second bevel gear, the disc spring cover pressing structure contacts the disc spring cover first, so that the disc spring is compressed, and the first bevel gear is separated from the disc spring cover.
With reference to the first aspect and the foregoing implementation manners, in certain implementation manners of the first aspect, an upper end surface of the disc spring cover protrudes from the first bevel gear in a radial direction, and the disc spring cover depressing structure includes a radial extension portion extending from a lower end of the piston in the radial direction and an axial extension portion extending from an outer edge of the radial extension portion to the upper end surface of the disc spring cover in the axial direction.
With reference to the first aspect and the foregoing implementation manners, in certain implementation manners of the first aspect, the rotating shaft penetrates through the transverse shaft hole, one end of the rotating shaft is connected to the driven gear, and the other end of the rotating shaft is connected to the second bevel gear.
With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the piston and the pull rod are provided with a central water hole, the rotating shaft penetrates through the central water hole of the piston, and an annular groove is formed in an intersection of an outer circular surface of the rotating shaft and the central water hole.
In a second aspect, an electric spindle comprises the electric spindle broach mechanism according to any one of the implementations of the first aspect.
In a third aspect, a machine tool comprises the electric spindle according to any one of the implementation manners of the second aspect.
One of the above technical solutions has at least one of the following advantages or beneficial effects: through ingenious design, in the process of pushing the pull rod by the driving cylinder, the pull rod is rotated through the matching of the pull rod rotating assembly and the first bevel gear on the pull rod, and the chuck is screwed out of the pull rod due to the threaded connection of the pull rod and the chuck; correspondingly, when the driving cylinder retracts upwards, the chuck applies axial acting force to the pull rod to enable the pull rod to move upwards along with the piston, and during the process, the pull rod is rotated through the matching of the pull rod rotating assembly and the first bevel gear on the pull rod, and finally the chuck is screwed into the pull rod, so that the function of automatically changing the tool is realized, the chuck is not required to be manually replaced by a worker, the use is more convenient, the manual maintenance cost is saved, and the profit is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of an electric spindle according to an embodiment of the present invention;
FIG. 2 is a schematic view of an embodiment of the chuck shown in FIG. 1 shown in a rotated configuration;
FIG. 3 is a schematic view of a chuck screw-in structure of one embodiment shown in FIG. 1.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention.
In the invention, the meaning of "a plurality" is one or more, the meaning of "a plurality" is more than two, and the terms of "more than", "less than", "more than" and the like are understood to exclude the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.
Fig. 1, 2 and 3 show a reference direction coordinate system of the embodiment of the present invention, and the embodiment of the present invention will be described below with reference to the directions shown in fig. 1, 2 and 3.
Referring to fig. 1, an embodiment of the present invention provides an electric spindle, which includes a machine body 1, a mounting base 2, a stator 3, a rotor 4, a bearing 5, and an electric spindle broach mechanism. The electric spindle broach mechanism comprises a spindle core 6, a chuck 7, a pull rod 8, a pull rod resetting component, a driving cylinder 9 and a pull rod rotating component 10, wherein the spindle core 6 is supported on the machine body 1 through a bearing 5, the driving cylinder 9 is installed at the upper end of the machine body 1 through an installation seat 2, a rotor 4 is installed on the spindle core 6, and a stator 3 is installed on the machine body 1 to form a motor structure. The shaft core 6 is driven by the motor to rotate, the chuck 7 is arranged at the lower end of the shaft core 6, and a cutter 11 is clamped on the chuck, so that a material part can be cut.
Specifically, referring to fig. 1, the shaft core 6 is provided with a shaft core inner hole, the lower end of the shaft core inner hole is provided with a chuck mounting hole 12, the pull rod 8 is arranged in the shaft core inner hole, the upper end of the pull rod 8 extends out of the shaft core inner hole, the upper end of the pull rod 8 is provided with a first bevel gear 13, the pull rod 8 and the first bevel gear 13 are integrally manufactured or are connected into a whole by adopting a plurality of parts, the lower end of the pull rod 8 extends to the chuck mounting hole 12, and the lower end of the pull rod 8 is in threaded connection with the chuck 7. The pull rod resetting component is used for driving the pull rod 8 to reset along the inner hole of the shaft core and tensioning the chuck 7 to the chuck mounting hole 12.
The driving cylinder 9 can adopt an air cylinder or a hydraulic cylinder, the driving cylinder 9 is provided with a piston 14 for pushing the pull rod 8, the lower end of the piston 14 is provided with a transverse shaft hole, the pull rod rotating assembly 10 comprises a rack 15, a driven gear 16, a rotating shaft 17 and a second bevel gear 18, the rack 15 extends along the movement direction of the piston 14, the rotating shaft 17 is installed in the transverse shaft hole, the driven gear 16 and the second bevel gear 18 are coaxially connected to the rotating shaft 17, one end of the rotating shaft 17 is connected with the driven gear 16, the other end of the rotating shaft 17 is connected with the second bevel gear 18, and the driven gear 16 is matched with the rack 15. When the piston 14 of the driving cylinder 9 extends downwards or retracts upwards, the driven gear 16 is in transmission fit with the rack 15, the driven gear 16 drives the rotating shaft 17 and the second bevel gear 18 to rotate, the second bevel gear 18 is in transmission fit with the first bevel gear 13, the pull rod 8 rotates around the axis, and therefore the chuck 7 is screwed out of or into the pull rod 8.
Referring to fig. 2 and 3, when the cartridge 7 needs to be serviced. The drive cylinder 9 pushes the piston 14 to move downwards. The piston 14 moves the rotary shaft 17 downward. The rack 15 is fixed, and the driven gear 16 is matched with the rack 15. When the shaft 17 moves downward, according to the mechanical principle, the driven gear 16 starts to rotate partially, which drives the whole shaft 17 to rotate, and the direction is shown in fig. 2.
When the piston 14 moves downwards, the first bevel gear 13 on the upper end surface of the pull rod 8 is in contact with the second bevel gear 18 on the rotating shaft 17. The pull rod 8 rotates along the axis under the driving of the rotating shaft 17.
When the pull rod 8 rotates, the chuck 7 is held by a robot hand and the like, the inner thread of the chuck 7 starts to be separated from the pull rod 8 slowly, the direction is as shown in fig. 2, the cutter in the chuck 7 moves along with the chuck until the cutter is separated from the thread of the pull rod 8, and the chuck 7 can be removed for subsequent maintenance and the like.
When the chuck 7 or the tool is replaced, the chuck 7 is put into the chuck mounting hole 12 again, so that the chuck 7 comes into contact with the thread of the pull rod 8. At this time, the piston 14 starts to move upwards, and the second bevel gear 18 rotates in the opposite direction to the cutter unloading process. The rotation is reversed along with the function of the bevel gear, so that the chuck 7 is matched with the pull rod 8 through threads and is tightened. When the chuck 7 and the drawbar 8 are completely tightened, the first bevel gear 13 and the second bevel gear 18 are separated from each other. Finally, the pull rod resetting component realizes that the pull rod 8 tensions the chuck 7, so that the cutter 11 is fixed.
According to the embodiment of the invention, through ingenious design, in the process that the drive cylinder 9 pushes the pull rod 8, the pull rod 8 is rotated through the matching of the pull rod rotating assembly 10 and the first bevel gear 13 on the pull rod 8, and the chuck 7 is screwed out of the pull rod 8 due to the threaded connection of the pull rod 8 and the chuck 7; correspondingly, when the driving cylinder 9 retracts upwards, the chuck 7 applies axial acting force to the pull rod 8, the pull rod 8 moves upwards along with the piston 14, the pull rod 8 rotates through the matching of the pull rod rotating assembly 10 and the first bevel gear 13 on the pull rod 8, and the chuck 7 is finally screwed into the pull rod 8, so that the automatic tool changing function is realized, the chuck 7 does not need to be manually replaced by a worker, the use is more convenient, the manual maintenance cost is saved, and the profit is improved.
Referring to fig. 1, the chuck 7 is provided with a screw hole, and the lower end of the pull rod 8 is provided with a screw head matched with the screw hole. It will be appreciated that it is also possible to provide the collet 7 with a screw head and the pull rod 8 with a screw hole at its lower end.
The pull rod resetting component can be driven by the driving cylinder 9 to reset the pull rod 8, and can also be an elastic resetting component, for example, in some embodiments shown in fig. 1, the pull rod resetting component comprises a disc spring 19, the disc spring 19 provides an axial acting force for the pull rod 8, the disc spring 19 is compressed in the cutter unloading process, and when the driving cylinder 9 retracts upwards, the disc spring 19 releases the elastic force to push the pull rod 8 to move upwards for resetting.
Further, in some embodiments, the pull rod resetting assembly further includes a disc spring cover 20, the disc spring cover 20 is located on the top of the disc spring 19, the disc spring 19 and the disc spring cover 20 are both sleeved outside the shaft core 6, and the disc spring cover 20 abuts against the lower end surface of the first bevel gear 13 under the action of the disc spring 19. The lower end of the disc spring 19 abuts against the upper bearing 5, and the upper bearing 5 is biased by the disc spring 19.
Further, referring to fig. 1, 2 and 3, the lower end of the piston 14 is provided with a disc spring cover pressing structure 21, when the piston 14 of the driving cylinder 9 extends downward, before the first bevel gear 13 contacts the second bevel gear 18, the disc spring cover pressing structure 21 contacts the disc spring cover 20 to compress the disc spring 19, and the first bevel gear 13 is separated from the disc spring cover 20. The friction force of the first bevel gear 13 is reduced, and the pull rod 8 is in a light stress state, so that the first bevel gear 13 and the second bevel gear 18 can transmit torque in subsequent transmission matching.
Referring to fig. 1, the upper end surface of the disc spring cover 20 protrudes from the first bevel gear 13 in the radial direction so that the disc spring cover depressing structure 21 can be in contact with the disc spring cover 20 in the axial direction. The disc spring cover depressing structure 21 includes a radially extending portion 22 and an axially extending portion 23, the radially extending portion 22 extending radially from the lower end of the piston 14, and the axially extending portion 23 extending axially from the outer edge of the radially extending portion 22 toward the upper end face of the disc spring cover 20. The disc spring cover pressing structure 21 avoids the first bevel gear 13 and the second bevel gear 18 by providing the radial extension portion 22 and the axial extension portion 23, so that a space is provided for the bevel gear transmission fit and the piston 14 and the pull rod 8 to fit.
In some embodiments, referring to fig. 1, in order to realize the central water outlet function, the piston 14 and the pull rod 8 are provided with central water holes 24 and 25, and cooling water can reach the cutter from the piston 14 and the pull rod 8, so that cutting cooling and cleaning are realized. The rotating shaft 17 penetrates through a central water hole 24 of the piston 14, the rotating shaft 17 divides the central water hole 24 of the piston 14 into an upper section and a lower section, and a ring groove 26 is arranged at the intersection of the outer circular surface of the rotating shaft 17 and the central water hole 24, so that a passage for communicating the upper section and the lower section of the central water hole 24 is formed at the intersection of the rotating shaft 17 and the central water hole 24.
In addition, in the embodiment of the invention, the inner pistons of the driving cylinders are all round in the moving process, so that in the old structure, the pistons can rotate in the moving process, thereby influencing the service life of the pull rod and the disc spring. In the new structure, the rotating shaft plays a role of axial fixation, so that the piston cannot rotate, and the broach structures such as a pull rod, a disc spring, a chuck and the like are protected.
Embodiments of the present invention also provide a machine tool, including an electric spindle in any of the above embodiments.
In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope of the claims of the present application.
Claims (10)
1. An electric spindle broach mechanism, characterized by comprising:
the shaft core is provided with a shaft core inner hole, and the lower end of the shaft core inner hole is provided with a chuck mounting hole;
a chuck;
the pull rod is arranged in the inner hole of the shaft core, a first bevel gear is arranged at the upper end of the pull rod, and the lower end of the pull rod is in threaded connection with the chuck;
the pull rod resetting component is used for driving the pull rod to reset along the inner hole of the shaft core and tensioning the chuck on the chuck mounting hole;
the driving cylinder is provided with a piston for pushing the pull rod, and the lower end of the piston is provided with a transverse shaft hole;
the pull rod rotating assembly comprises a rack, a driven gear, a rotating shaft and a second bevel gear, the rack extends along the motion direction of the piston, the rotating shaft is installed in the transverse shaft hole, the driven gear and the second bevel gear are coaxially connected to the rotating shaft, and the driven gear is matched with the rack;
when the piston of the driving cylinder extends downwards or retracts upwards, the driven gear is in transmission fit with the rack, the driven gear drives the rotating shaft and the second bevel gear to rotate, and the second bevel gear is in transmission fit with the first bevel gear to enable the pull rod to rotate around the axis, so that the chuck is screwed out of or into the pull rod.
2. The electric spindle broach mechanism according to claim 1, wherein the chuck is provided with a screw hole, and the lower end of the pull rod is provided with a screw head which is engaged with the screw hole.
3. The electric spindle broach mechanism according to claim 1, wherein the pull rod return assembly comprises a disc spring.
4. The electric spindle broach mechanism according to claim 3, wherein the pull rod resetting assembly further comprises a disc spring cover, the disc spring and the disc spring cover are both sleeved outside the spindle core, and the disc spring cover abuts against the lower end face of the first bevel gear under the action of the disc spring.
5. The electric spindle broach mechanism according to claim 4, wherein the lower end of the piston is provided with a disc spring cover pressing structure, when the piston of the driving cylinder extends downwards, the disc spring cover pressing structure contacts with the disc spring cover first before the first bevel gear contacts with the second bevel gear, so that the disc spring is compressed, and the first bevel gear is separated from the disc spring cover.
6. The electric spindle broach mechanism according to claim 5, wherein an upper end surface of the disc spring cover radially protrudes from the first bevel gear, and the disc spring cover depressing structure includes a radially extending portion that radially extends from a lower end of the piston, and an axially extending portion that axially extends from an outer edge of the radially extending portion toward the upper end surface of the disc spring cover.
7. The electric spindle broach mechanism according to claim 1, wherein the rotating shaft passes through the transverse shaft hole, one end of the rotating shaft is connected with the driven gear, and the other end of the rotating shaft is connected with the second bevel gear.
8. The electric spindle broach mechanism according to claim 1, wherein the piston and the pull rod are provided with a central water hole, the rotating shaft passes through the central water hole of the piston, and the outer circumferential surface of the rotating shaft is provided with a ring groove at the intersection of the central water hole and the rotating shaft.
9. An electric spindle comprising an electric spindle broach mechanism according to any one of claims 1 to 8.
10. A machine tool comprising an electric spindle according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110466590.7A CN113043033B (en) | 2021-04-28 | 2021-04-28 | Electric main shaft broach mechanism, electric main shaft and machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110466590.7A CN113043033B (en) | 2021-04-28 | 2021-04-28 | Electric main shaft broach mechanism, electric main shaft and machine tool |
Publications (2)
| Publication Number | Publication Date |
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| CN113043033A CN113043033A (en) | 2021-06-29 |
| CN113043033B true CN113043033B (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110466590.7A Active CN113043033B (en) | 2021-04-28 | 2021-04-28 | Electric main shaft broach mechanism, electric main shaft and machine tool |
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| CN (1) | CN113043033B (en) |
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| GB770584A (en) * | 1955-04-06 | 1957-03-20 | Lapointe Machine Tool Co | Improvements in or relating to duplex broaching machines |
| GB1531111A (en) * | 1977-02-04 | 1978-11-01 | Meidensha Electric Mfg Co Ltd | Spindle head arrangement for a machine tool |
| CN1145840A (en) * | 1995-09-14 | 1997-03-26 | 邵文远 | Integrated machining center |
| US6592305B1 (en) * | 2002-02-28 | 2003-07-15 | Marc H Boisvert | Right angle drive arrangement for a vertical milling machine |
| US7971883B2 (en) * | 2005-09-07 | 2011-07-05 | Hardinge, Inc. | Workholding clamping assembly |
| KR102360161B1 (en) * | 2017-05-29 | 2022-02-09 | 현대자동차주식회사 | Spindle apparatus and method for operating the same |
| JP6775276B2 (en) * | 2019-03-15 | 2020-10-28 | 株式会社ソディック | Hydrostatic fluid bearing equipment |
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| US6264409B1 (en) * | 1998-05-29 | 2001-07-24 | Toshiba Kikai Kabushiki Kaisha | Tool holder clamp device for spindle and spindle apparatus |
| JP2001269803A (en) * | 2000-03-27 | 2001-10-02 | Okuma Corp | Main spindle device for machine tool |
| CN102059647A (en) * | 2010-09-30 | 2011-05-18 | 安阳莱必泰机械有限公司 | Electric grinder spindle capable of automatically replacing grinding wheel |
| CN203622030U (en) * | 2013-12-05 | 2014-06-04 | 成都斯锐特钨钢刀具有限公司 | Clamping mechanism for cutting equipment |
| CN204277615U (en) * | 2014-11-20 | 2015-04-22 | 扬州力创机床有限公司 | A kind of vertical sleeping main tapping exchange mechanism |
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| CN107282950A (en) * | 2017-06-30 | 2017-10-24 | 广州市昊志机电股份有限公司 | A kind of high-speed permanent magnetic synchronization Zuan Gong centers electro spindle |
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|---|---|
| CN113043033A (en) | 2021-06-29 |
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