CN209565813U - A kind of Machining of Shaft-type Parts automatic fixture - Google Patents

A kind of Machining of Shaft-type Parts automatic fixture Download PDF

Info

Publication number
CN209565813U
CN209565813U CN201822183801.2U CN201822183801U CN209565813U CN 209565813 U CN209565813 U CN 209565813U CN 201822183801 U CN201822183801 U CN 201822183801U CN 209565813 U CN209565813 U CN 209565813U
Authority
CN
China
Prior art keywords
fixedly connected
gear
motor
machining
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201822183801.2U
Other languages
Chinese (zh)
Inventor
姬宁宁
景永平
何磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Established Aviation Manufacturing Co Ltd
Original Assignee
Xi'an Established Aviation Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xi'an Established Aviation Manufacturing Co Ltd filed Critical Xi'an Established Aviation Manufacturing Co Ltd
Priority to CN201822183801.2U priority Critical patent/CN209565813U/en
Application granted granted Critical
Publication of CN209565813U publication Critical patent/CN209565813U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Jigs For Machine Tools (AREA)

Abstract

The utility model discloses a kind of Machining of Shaft-type Parts automatic fixtures, including pedestal, fixing seat, clamping device, rotating device, axial workpiece and mobile device, clamping device includes rotary table, limited post, rack gear, sliding groove, second gear, Rotational Cylindrical, bearing, connecting column, clamp ring, rubber pad, first motor, driving wheel, transmission belt and driven wheel, rotary table is fixedly connected in first gear, limited post is fixedly connected on rotary table, rack gear is slidably connected on limited post by sliding groove, second gear is fixedly connected in Rotational Cylindrical, connecting column is fixedly connected on rack gear, clamp ring is fixedly connected on connecting column, first motor is fixedly connected on rotary table, driving wheel is fixedly connected in first motor, transmission belt is connected on driving wheel, driven wheel is fixedly connected in Rotational Cylindrical, rotating device includes first gear, locating slot, Positioning column, the second motor and third gear, mobile device include sliding rail, limit plate, machine table and cutter.

Description

A kind of Machining of Shaft-type Parts automatic fixture
Technical field
The utility model relates to field of aerospace technology, specially a kind of Machining of Shaft-type Parts automatic fixture.
Background technique
In industrial products, axial workpiece is suitable for one or more numerically-controlled machine tool processing parts/maintenance operations.Axis class Part is one of the typical part frequently encountered in Hardware fitting, it is mainly used to bearing transmission components, transmits torque and holds It is loaded, it is different by axial workpiece structure type, it generally can be divided into optical axis, multi-diameter shaft and special-shaped axis three classes;Or be divided into solid shafting, Hollow shaft etc..
Such as a kind of drilling jig for shaft-like parts disclosed in Chinese patent CN208163128U.The boring grab includes using The pedestal of axial workpiece to be processed is placed in support, pedestal is step structure and is equipped with units, and units include described The mounting hole for positioning and plug-in mounting axial workpiece to be processed that pedestal was equipped with extend in left-right direction, and hang down with mounting hole The drilling of straight arrangement and corresponding perforation further includes by the fixed fastening structure in the base of axial workpiece.It is fixed to be additionally provided on pedestal Position hole, which be the long pore structure extended in left-right direction, and the central axis of location hole and bore center axis, is pacified Hole central axis co-planar arrangement is filled, and parallel with bore center axis.Boring grab further includes for being installed on location hole and axis Spacer pin on class part in the processing hole of machined completion and perforation corresponding with location hole.Using the boring grab of this structure It can guarantee that multiple hole location axis of Machining of Shaft-type Parts are in the same plane, improve the quality and efficiency of processing.
Axial workpiece needs according to demand to carry out it before use the processing of different modes, traditional axial workpiece clamping Mode poor location, production assurance ability is poor when batch machining, and efficiency is lower, for another example above-mentioned Chinese patent CN208163128U often needs to use different fixtures according to different working positions, it is also necessary to by axial workpiece in processing Different faces are overturn to cutter, in this way in working shaft-like part, will often occur fixture it is positioned it is inaccurate, cutter without Method is accurately cut, and polishing etc. causes the axial workpiece produced undesirable, therefore, this just needs one kind can be to axis class Part is fixed very well, and does not need the difference with working position and the automatic fixture that clamps again.
Utility model content
The purpose of this utility model is to provide a kind of Machining of Shaft-type Parts automatic fixtures, to solve in above-mentioned background technique The problem of proposition.
To achieve the above object, the utility model provides the following technical solutions: a kind of Machining of Shaft-type Parts automatic fixture, packet Pedestal, fixing seat, clamping device, rotating device, axial workpiece and mobile device are included, the fixing seat is slidably connected at sliding rail On, the clamping device is fixed in first gear, and the rotating device is fixed in the fixing seat, the axis Class part is fixedly connected in the clamping device, and the mobile device fixed setting is on the base.
The clamping device include rotary table, limited post, rack gear, sliding groove, second gear, Rotational Cylindrical, bearing, connecting column, Clamp ring, rubber pad, first motor, driving wheel, transmission belt and driven wheel, the rotary table are fixedly connected in the first gear, The limited post is fixedly connected on the rotary table, and the rack gear is slidably connected on the limited post by the sliding groove, The sliding groove is provided in the rack gear, and the second gear is fixedly connected in the Rotational Cylindrical, and the Rotational Cylindrical is fixed It being connected on the bearing, the bearing is fixedly connected in the rotary table, and the connecting column is fixedly connected on the rack gear, The clamp ring is fixedly connected on the connecting column, and the rubber pad is fixedly connected on the inner ring of the clamp ring, first electricity Machine is fixedly connected on the rotary table, and the driving wheel is fixedly connected on the output end of the first motor, and the transmission belt passes Dynamic to be connected on the driving wheel, the driven wheel is fixedly connected in the Rotational Cylindrical.
The rotating device includes first gear, locating slot, positioning column, the second motor and third gear, first tooth Wheel is rotatably connected on the positioning column, and the locating slot is provided with the rotary table close to the position of outer ring, the positioning column One end is fixedly connected on the inner wall of the fixing seat, and second motor is fixedly connected on the inner wall of the fixing seat, institute State the output end that third gear is fixedly connected on second motor.
The mobile device includes sliding rail, limit plate, machine table and cutter, and the sliding rail is fixedly connected on the pedestal On, the limit plate is fixedly connected on the both ends of the sliding rail, and the machine table is fixedly installed on the base, the cutter It is fixedly connected in the machine table.
Preferably, the high width in the limited post of the width of the sliding groove is high.
Preferably, the quantity of the driven wheel and the Rotational Cylindrical of connection fixed thereto is three.
Preferably, three driven wheels are sequentially connected with the driving wheel by the transmission belt.
Preferably, the other end of the positioning column is slidably connected on the locating slot.
Preferably, the second gear is meshed with the rack gear and connect.
Preferably, the third gear is meshed with the first gear connect.
Preferably, the sliding rail, the cutter and the axial workpiece are on the same line.
Compared with prior art, the utility model has the beneficial effects that the Machining of Shaft-type Parts automatic fixture:
(1), rack gear, connecting column, clamp ring and rubber pad can orient shifting under the action of limited post and sliding groove Dynamic, transmission belt by first motor drive driving wheel and thereon rotates, and drives driven wheel and connection fixed thereto later Rotational Cylindrical rotation, second gear can rotate under the rotation of Rotational Cylindrical, thus mobile with carry-over bar, transmission belt can will Three driven wheels connect, and then can just make three driven wheel rotations by the drive of a first motor, not influence Cost is also ad save while clamping effect, fixation is clamped to axial workpiece, three clamp rings can be very good to axis class zero The outer wall of part carries out coating function, and rubber pad has certain ductility, when contacting axial workpiece due to using rubber material It can be played a certain protective role, the part that is fixed of axial workpiece is prevented to be deformed.
(2), the second motor can be by the rotation of drive third gear, to drive the connection that is meshed with third gear First gear rotation, realizes the purpose for rotating axial workpiece, and the port for the part that positioning column is contacted with rotary table is provided with round block, It can will not be detached from from locating slot again while being slidably connected with locating slot, then circular locating slot and positioning column be just Can make first gear in the rotation will not occur the offset of position, reach according to demand, to adjust adding for axial workpiece The purpose of work face position.
(3), pedestal can move on the slide rail, to change the lateral Working position of axial workpiece, limit plate can be to prevent Only pedestal is detached from sliding rail, and after adjusting good position, machine table and cutter can accurately be processed axial workpiece.
Detailed description of the invention
Fig. 1 is the utility model schematic elevation view;
Fig. 2 is the utility model clamping device position view;
Fig. 3 is enlarged diagram at the utility model A;
Fig. 4 is the utility model clamping device and rotating device schematic side view;
Fig. 5 is enlarged diagram at the utility model B.
In figure: 1 pedestal, 2 fixing seats, 3 clamping devices, 31 rotary tables, 32 limited posts, 33 rack gears, 34 sliding grooves, 35 second Gear, 36 Rotational Cylindricals, 37 bearings, 38 connecting columns, 39 clamp rings, 301 rubber pads, 302 first motors, 303 driving wheels, 304 transmissions Band, 305 driven wheels, 4 rotating devices, 41 first gears, 42 locating slots, 43 positioning columns, 44 second motors, 45 third gears, 5 Axial workpiece, 6 mobile devices, 61 sliding rails, 62 limit plates, 63 machine tables, 64 cutters.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of Machining of Shaft-type Parts automatic fixture, including Pedestal 1, fixing seat 2, clamping device 3, rotating device 4, axial workpiece 5 and mobile device 6, fixing seat 2 are slidably connected at sliding rail On 61, clamping device 3 is fixed in first gear 41, and rotating device 4 is fixed in fixing seat 2, and axial workpiece 5 is solid Surely it is connected in clamping device 3, mobile device 6 is fixed on pedestal 1, clamping device 3, rotating device 4 and mobile dress It sets by reciprocation between 6, to have the function that be clamped axial workpiece 5 fixed and processing.
Clamping device 3 includes rotary table 31, limited post 32, rack gear 33, sliding groove 34, second gear 35, Rotational Cylindrical 36, bearing 37, connecting column 38, clamp ring 39, rubber pad 301, first motor 302, driving wheel 303, transmission belt 304 and driven wheel 305 clamp Device 3 is always divided into three parts, and trigonometric expression structure composed by three clamp rings 39 and rubber pad 301 can make axial workpiece 5 are fixed well, and rotary table 31 is fixedly connected in first gear 41, and limited post 32 is fixedly connected on rotary table 31, rack gear 33 It is slidably connected on limited post 32 by sliding groove 34, sliding groove 34 is provided in rack gear 33, and the width of sliding groove 34 is high in limit The width of position column 32 is high, and second gear 35 is fixedly connected in Rotational Cylindrical 36, and second gear 35 is meshed with rack gear 33 and connect, rotation Column 36 is fixedly connected on bearing 37, and bearing 37 is fixedly connected in rotary table 31, and connecting column 38 is fixedly connected on rack gear 33, Clamp ring 39 is fixedly connected on connecting column 38, and rubber pad 301 is fixedly connected on the inner ring of clamp ring 39, and first motor 302 is fixed to be connected It connects on rotary table 31, the model GA12-N20 of first motor 302, is fixedly installed battery (explanation in the inside of rotary table 31 It is not drawn into attached drawing), it since first motor 302 is micromotor, and is electrically connected with battery by conducting wire, so the first electricity The electricity required in operation of machine 302 can be supplied by battery, and driving wheel 303 is fixedly connected on the output of first motor 302 End, transmission belt 304 are sequentially connected on driving wheel 303, and driven wheel 305 is fixedly connected in Rotational Cylindrical 36, three driven wheels 305 It is sequentially connected with driving wheel 303 by transmission belt 304, the quantity of the Rotational Cylindrical 36 of driven wheel 305 and connection fixed thereto is equal It is three, rack gear 33, connecting column 38, clamp ring 39 and rubber pad 301 can be under the action of limited posts 32 and sliding groove 34 Displacement, transmission belt 304 by the drive driving wheel 303 of first motor 302 and thereon rotate, and drive driven wheel later 305 and connection fixed thereto Rotational Cylindrical 36 rotate, second gear 35 can be rotated under the rotation of Rotational Cylindrical 36, to drive Rack gear 33 is mobile, and a transmission belt 304 can connect three driven wheels 305, then passes through a first motor 302 Drive three driven wheels 305 can just rotated, cost is also ad save while not influencing clamping effect, to axial workpiece 5 are clamped fixation, and three clamp rings 39 can be very good to carry out the outer wall of axial workpiece 5 coating function, rubber pad 301 due to Using rubber material, there is certain ductility, it can be played a certain protective role when contacting axial workpiece 5, prevents Only the part that is fixed of axial workpiece 5 is deformed.
Rotating device 4 include first gear 41, locating slot 42, positioning column 43, the second motor 44 and third gear 45, first Gear 41 is rotatably connected on positioning column 43, and locating slot 42 is provided with rotary table 31 close to the position of outer ring, one end of positioning column 43 It is fixedly connected on the inner wall of fixing seat 2, the other end of positioning column 43 is slidably connected on locating slot 42, and the second motor 44 is solid Surely it being connected on the inner wall of fixing seat 2, the model MSME 5AZG1 of the second motor 44, this motor accurately controls speed, this When sample can just make its band moving gear rotation, rotation perimeter is more accurate, and third gear 45 is fixedly connected on the second electricity The output end of machine 44, third gear 45 are meshed with first gear 41 and connect, and the second motor 44 can be by driving third gear 45 rotation realizes the mesh for rotating axial workpiece 5 to drive the first gear 41 for the connection that is meshed with third gear 45 to rotate , the port for the part that positioning column 43 is contacted with rotary table is provided with round block, can be while being slidably connected with locating slot 42 again It will not be detached from from locating slot 42, then circular locating slot 42 and positioning column 43 just can be such that first gear 41 is rotating When the offset of position will not occur, reach according to demand, come adjust axial workpiece 5 machined surface position purpose.
Mobile device 6 includes sliding rail 61, limit plate 62, machine table 63 and cutter 64, and sliding rail 61 is fixedly connected on pedestal 1 On, limit plate 62 is fixedly connected on the both ends of sliding rail 61, and machine table 63 is fixed on pedestal 1, and cutter 64 is fixedly connected on In machine table 63, sliding rail 61, cutter 64 and axial workpiece 5 are on the same line, and pedestal 1 can move on sliding rail 61, It is directly logical when needing the different location to axial workpiece 5 to process to change the lateral Working position of axial workpiece 5 It crosses sliding rail 61 to move pedestal 1, limit plate 62 can prevent the disengaging sliding rail of pedestal 1 from adding after adjusting good position Work platform 63 and cutter 64 can accurately process axial workpiece 5, first motor 302 and the second motor 44 by External controller is electrically connected by program, when carrying out the clamping to axial workpiece 5, so that it may pass through external controller Process control directly is carried out to two motors, reaches clamping device 3 to the self-holding effect of axial workpiece 5.
When carrying out the processing operation of axial workpiece 5, first the clamping that is partially disposed in that axial workpiece 5 does not need processing is filled 3 center positions are set, then the controller outside starts first motor 302, rotates by first motor 302 and drives driving wheel 303 rotations, then drive driven wheel 305 to rotate by transmission belt 304, back front driven wheel 305 pass through and be firmly connected with it Rotational Cylindrical 36 come drive second gear 35 rotate, rack gear 33 can with second gear 35 rotation, limited post 32 and sliding It is moved under the action of slot 34, the connecting column 38 and clamp ring 39 and rubber pad 301 being then fixedly connected with 33 phase of rack gear can be pushed away It is dynamic, fixation is clamped to axial workpiece 5, rubber pad 301 can utilize the flexibility of itself when contacting the outer wall of axial workpiece 5 Axial workpiece 5 is coated, reduces the damage to its surface, when rack gear 33 is when being moved to setting position, axial workpiece 5 can be firm Jail is fixed, and the position processed needed for being moved to using the axial workpiece 5 of sliding rail 61 by fixing seat 1 and thereon at this time is used Machine table 63 and cutter 64 thereon carry out processing operation to axial workpiece 5.
When needing to process 5 different sides of axial workpiece, start the second motor 44, passes through turning for third gear 45 Dynamic, to drive the first gear 41 for the connection that is meshed therewith to rotate, rotary table 31 and the component being fixed thereon can be with first The rotation of gear 41 and rotate, the position of axial workpiece 5 being adjusted with this, being connect when adjusting in the face of required processing to cutter 64 When touching, the second motor 44 is closed, then cutter 64 is recycled to be processed, after axial workpiece 5 is processed, then is opened Dynamic first motor 302 simultaneously makes its reversion, be detached from rack gear 33 and connected other assemblies to axial workpiece 5 It is fixed, axial workpiece 5 is finally removed, then change other axial workpieces 5, is repeated using the above method.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (8)

1. a kind of Machining of Shaft-type Parts automatic fixture, including pedestal (1), fixing seat (2), clamping device (3), rotating device (4), Axial workpiece (5) and mobile device (6), it is characterised in that: the fixing seat (2) is slidably connected on sliding rail (61), the folder Tight device (3) is fixed on first gear (41), and the rotating device (4) is fixed in the fixing seat (2), institute It states axial workpiece (5) to be fixedly connected in the clamping device (3), the mobile device (6) is fixed at the pedestal (1) On;
The clamping device (3) include rotary table (31), limited post (32), rack gear (33), sliding groove (34), second gear (35), Rotational Cylindrical (36), bearing (37), connecting column (38), clamp ring (39), rubber pad (301), first motor (302), driving wheel (303), transmission belt (304) and driven wheel (305), the rotary table (31) is fixedly connected on the first gear (41), described Limited post (32) is fixedly connected on the rotary table (31), and the rack gear (33) is slidably connected at institute by the sliding groove (34) It states on limited post (32), the sliding groove (34) is provided in the rack gear (33), and the second gear (35) is fixedly connected on On the Rotational Cylindrical (36), the Rotational Cylindrical (36) is fixedly connected on the bearing (37), and the bearing (37) is fixedly connected In the rotary table (31), the connecting column (38) is fixedly connected on the rack gear (33), and the clamp ring (39) is fixedly connected On the connecting column (38), the rubber pad (301) is fixedly connected on the inner ring of the clamp ring (39), the first motor (302) it is fixedly connected on the rotary table (31), the driving wheel (303) is fixedly connected on the defeated of the first motor (302) Outlet, on the driving wheel (303), the driven wheel (305) is fixedly connected on described for transmission belt (304) transmission connection In Rotational Cylindrical (36);
The rotating device (4) includes first gear (41), locating slot (42), positioning column (43), the second motor (44) and third Gear (45), the first gear (41) are rotatably connected on the positioning column (43), and the locating slot (42) is provided with described Rotary table (31) is fixedly connected on the inner wall of the fixing seat (2) close to the position of outer ring, one end of the positioning column (43), institute It states the second motor (44) to be fixedly connected on the inner wall of the fixing seat (2), the third gear (45) is fixedly connected on described The output end of second motor (44);
The mobile device (6) includes sliding rail (61), limit plate (62), machine table (63) and cutter (64), the sliding rail (61) It is fixedly connected on the pedestal (1), the limit plate (62) is fixedly connected on the both ends of the sliding rail (61), the machine table (63) it is fixed on the pedestal (1), the cutter (64) is fixedly connected on the machine table (63).
2. a kind of Machining of Shaft-type Parts automatic fixture according to claim 1, it is characterised in that: the sliding groove (34) The high width in the limited post (32) of width is high.
3. a kind of Machining of Shaft-type Parts automatic fixture according to claim 1, it is characterised in that: the driven wheel (305) And the quantity of the Rotational Cylindrical (36) of connection fixed thereto is three.
4. a kind of Machining of Shaft-type Parts automatic fixture according to claim 3, it is characterised in that: three driven wheels (305) it is sequentially connected with the driving wheel (303) by the transmission belt (304).
5. a kind of Machining of Shaft-type Parts automatic fixture according to claim 1, it is characterised in that: the positioning column (43) The other end is slidably connected on the locating slot (42).
6. a kind of Machining of Shaft-type Parts automatic fixture according to claim 1, it is characterised in that: the second gear (35) It is meshed and connect with the rack gear (33).
7. a kind of Machining of Shaft-type Parts automatic fixture according to claim 1, it is characterised in that: the third gear (45) It is meshed and connect with the first gear (41).
8. a kind of Machining of Shaft-type Parts automatic fixture according to claim 1, it is characterised in that: the sliding rail (61), institute It states cutter (64) and the axial workpiece (5) is on the same line.
CN201822183801.2U 2018-12-25 2018-12-25 A kind of Machining of Shaft-type Parts automatic fixture Active CN209565813U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822183801.2U CN209565813U (en) 2018-12-25 2018-12-25 A kind of Machining of Shaft-type Parts automatic fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822183801.2U CN209565813U (en) 2018-12-25 2018-12-25 A kind of Machining of Shaft-type Parts automatic fixture

Publications (1)

Publication Number Publication Date
CN209565813U true CN209565813U (en) 2019-11-01

Family

ID=68330807

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822183801.2U Active CN209565813U (en) 2018-12-25 2018-12-25 A kind of Machining of Shaft-type Parts automatic fixture

Country Status (1)

Country Link
CN (1) CN209565813U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110774037A (en) * 2019-11-10 2020-02-11 衡阳和富铜业有限公司 Fixing equipment for brass processing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110774037A (en) * 2019-11-10 2020-02-11 衡阳和富铜业有限公司 Fixing equipment for brass processing

Similar Documents

Publication Publication Date Title
CN210023840U (en) Efficient fast-machining vertical drilling machine
CN110421367A (en) A kind of Machining of Shaft-type Parts automatic fixture
CN106041533A (en) Turning and milling composite machining center
CN116141030B (en) Swing-head type five-axis cam rotary table machining machine tool and use method thereof
CN209565813U (en) A kind of Machining of Shaft-type Parts automatic fixture
CN211360704U (en) Rotary numerical control vertical drilling machine
CN113084531A (en) Machining production line and technological method for main chord member of standard knot of tower crane
CN106181386B (en) A kind of continous drilling machine
CN117283321A (en) Shaft workpiece machining equipment
CN212682468U (en) Self-centering film chuck clamp structure
CN114799890A (en) Turning and milling combined machining center
CN210938064U (en) Turntable machine combined machine tool
CN212351338U (en) Material processing device
CN111015382B (en) Negative chamfering grinding machine tool
CN112108911A (en) Workpiece clamp for numerical control machining
CN113894562A (en) Equipment rotation mechanism of seat ring processing usefulness
CN221134996U (en) Machining positioning equipment
CN105437026A (en) Automatic semicircle grinding device
CN212398868U (en) Accurate five metals tool
CN217122390U (en) Special six-station rotary table machine
CN109514332B (en) Model high-precision positioning device suitable for five-axis numerical control machining
CN221047888U (en) Rotatable digit control machine tool
CN218697897U (en) Positioning fixture for shaft sleeve machining
CN216473483U (en) Laser cladding machine fixture device
CN219837591U (en) A high-efficient high accuracy numerical control coordinate grinding machine for planet carrier processing

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant