CN201500780U - Numerically controlled lathe for machining part with non-circular section - Google Patents
Numerically controlled lathe for machining part with non-circular section Download PDFInfo
- Publication number
- CN201500780U CN201500780U CN2009200662957U CN200920066295U CN201500780U CN 201500780 U CN201500780 U CN 201500780U CN 2009200662957 U CN2009200662957 U CN 2009200662957U CN 200920066295 U CN200920066295 U CN 200920066295U CN 201500780 U CN201500780 U CN 201500780U
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- headstock
- main shaft
- numerically controlled
- numerical control
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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
A numerically controlled lathe for machining a part with a non-circular section comprises a lathe frame (1), a lathe body (2), a lathe headstock mechanism, a feeding mechanism, a numerical control system and a tailstock (6), wherein the lathe headstock mechanism comprises a lathe headstock (31), a spindle (32), a variable-frequency motor (33) and a workpiece tensioning mechanism; the spindle (32) is mounted on the lathe headstock (31); the variable-frequency motor (33) is mounted on the lathe frame (1), and is connected with one end of the spindle (32) through a circle-arc tooth synchronous belt (331) and a circle-arc tooth synchronous pulley (332); a profile modeling installation flange (323) is arranged at the other end of the spindle (32); and a pull rod can concentrically tense a workpieces (355) to be machined on one end of the spindle (32). The high-speed precision machining of multiple processes of the part with the non-circular section can be finished only through one-time clamp, therefore, the numerically controlled lathe is particularly suitable for machining the parts with the non-circular sections.
Description
Technical field
The utility model relates to a kind of digital control processing lathe, particularly a kind of on-circular cross-section part processing numerically controlled lathe.
Background technology
Many products all have the on-circular cross-section profile, for example: the interior profile of internal combustion engine, cam, camshaft, punch die, non-circular bearing etc.; And these on-circular cross-section profile parts are made by processes such as hydraulic tracing control processing, grindings mostly at present, and the on-circular cross-section part precision that this method processes is not high, and efficient is low.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and a kind of on-circular cross-section part processing numerically controlled lathe is provided, its need only No. one time clamping just can finish the high speed and precision processing of the multiple working procedure of on-circular cross-section workpiece.
The technical solution of the utility model is: a kind of on-circular cross-section part processing numerically controlled lathe, and it comprises bedstead, lathe bed, headstock mechanism, feed mechanism, digital control system and tailstock, lathe bed is installed on the bedstead, which is provided with case; Headstock mechanism and digital control system are installed on bedstead and the lathe bed; Feed mechanism is installed on the lathe bed; Headstock mechanism comprises headstock, main shaft, variable-frequency motor, photoimpact encoder and workpiece tensioning mechanism; Main shaft is installed on the headstock, and variable-frequency motor is installed in bedstead, and it also is connected with main shaft one end with the arc tooth synchronous belt wheel by arc tooth synchronous belt, and the main shaft other end is provided with the pattern mounting flange; The workpiece tensioning mechanism comprises cylinder-piston assembly, shift fork and pull bar, and the pull bar movable set is in the tie rod hole of main shaft, and the workpiece tensioning mechanism can be with workpiece to be processed with the end of core tension at main shaft.
The further technical scheme of the utility model is: described front-end of spindle is bearing on the headstock by three accurate angular contact ball bearings of one group in three covers, and rear-end of spindle is bearing on the headstock by one group of Biserial cylindrical roller bearing; One end of pull bar is sleeved in the tie rod hole of shift fork, and the other end of pull bar is provided with the draw ring hole, and an end of shift fork is hinged by support and headstock, and the other end of shift fork is connected with the piston of cylinder-piston assembly.
The utility model further technical scheme is: described feed mechanism comprises saddle, middle carriage and electric driving tool post mechanism, saddle is movably arranged on the lathe bed, lathe bed and saddle are provided with the Z axle servomotor of driving saddle Ji Roll ballscrew group, middle carriage is installed on the X-axis swallow-tail form track on the saddle by the dovetail groove on it, saddle and middle carriage are provided with the X-axis servomotor that drives middle carriage Ji Roll ballscrew group, and electric driving tool post mechanism comprises four station carriage saddles, the imitation-shaped knife box, CNC turning tool, the numerical control recessing bit, numerical control tip chamfer cutter, electric driving tool post position rotaring motor and electric driving tool post base; Imitation-shaped knife box, CNC turning tool, numerical control recessing bit and numerical control tip chamfer cutter are installed in respectively on four stations of four station carriage saddles.
The further again technical scheme of the utility model is: described imitation-shaped knife box comprises sliding panel, slide plate chair, profile tracking bearing and copying turning; Sliding panel cooperates by dovetail groove and dovetail rail activity with slide plate chair, also be provided with the panel and the holding screw of the fit clearance of adjusting dovetail groove and dovetail rail between sliding panel and the slide plate chair, be provided with extrusion spring between sliding panel and the slide plate chair, the profile tracking bearing is installed on the sliding panel, also be provided with kidney slot on the sliding panel, guide finger is installed on the slide plate chair, one end of guide finger stretches in the kidney slot, sliding panel also is provided with the conehead holding screw, copying turning is installed in the square groove of sliding panel, and copying turning is provided with the bellmouth that matches with the conehead holding screw.
The utility model is stated further technical scheme: the photoimpact encoder is fixedly mounted on the headstock, and it is connected with main shaft with the arc tooth synchronous belt wheel by arc tooth synchronous belt.
Copying turning is the polycrystalline diamond CNC turning tool, and CNC turning tool, numerical control recessing bit, numerical control tip chamfer cutter are diamond bit.
The utility model compared with prior art has following characteristics:
1, the utility model is particularly suitable for the on-circular cross-section part processing except can processing conventional circular-section workpiece;
2, because main shaft, profiling mould and workpiece to be processed are coaxial installation, the main axle structure of this headstock mechanism has reduced driving-chain, avoided the generation of vibration source, steady when making the main shaft high-speed cruising, noise is little, has effectively guaranteed the machining accuracy of machining piston under the high-speed turning state;
3, the utility model provide the lathe in machining workpiece time need only a clamping, automatic displacement by four station carriage saddles, can finish the high speed and precision processing of multiple working procedure, realized that a numerically controlled lathe replaces the be open to traffic machining functions of bed of several Daeporis, has increased substantially crudy and production efficiency.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation that removes behind the case of the present utility model;
Fig. 3 is the structural representation of headstock of the present utility model mechanism;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structural representation of feed mechanism of the present utility model;
Fig. 6 is the structural representation of imitation-shaped knife box of the present utility model;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is the A-A cutaway view of Fig. 6;
Fig. 9 is the vertical view of Fig. 6.
The specific embodiment
Embodiment
As enclose shown in the 1-2: a kind of on-circular cross-section part processing numerically controlled lathe, it comprises bedstead 1, lathe bed 2, headstock mechanism, feed mechanism, digital control system and tailstock 6, lathe bed 2 is installed on the bedstead 1, which is provided with case 21; Headstock mechanism and digital control system are installed on bedstead 1 and the lathe bed 2; Feed mechanism is installed on the lathe bed 2;
Shown in Fig. 2-4: headstock mechanism comprises headstock 31, main shaft 32, variable-frequency motor 33, photoimpact encoder 34 and workpiece tensioning mechanism; Main shaft 32 front ends are bearing on the headstock 31 by three accurate angular contact ball bearings 321 of one group in three covers, bearing 321 makes main shaft 32 when running up, can bear radial and axial load, main shaft 32 rear ends are bearing on the headstock 31 by one group of Biserial cylindrical roller bearing 322, this bearing configuration of main shaft 32 makes it have higher rigidity, variable-frequency motor 33 is installed in bedstead 1, it is stated by arc tooth synchronous belt 331 and arc tooth synchronous belt wheel 332 and is connected with main shaft 32 1 ends, be that power is passed to main shaft 32 by variable-frequency motor 33 through arc tooth synchronous belt wheel 331 and arc tooth synchronous belt wheel 332, main shaft 32 other ends are provided with pattern mounting flange 323, photoimpact encoder 34 is fixedly mounted on the headstock 31, it is connected with main shaft 32 with the arc tooth synchronous belt wheel by arc tooth synchronous belt 341, photoimpact encoder 34 is as the impulse generator of main shaft 32, after it gives the digital control system processing with main shaft 32 tach signals, digital control system is by the speed of adjusting variable-frequency motor 33, thereby the rotation of realization main shaft 32 and the axial feed of feed mechanism can guarantee synchronously; The workpiece tensioning mechanism comprises cylinder-piston assembly 351, shift fork 352 and pull bar 353; Pull bar 353 movable sets are in the tie rod hole of main shaft 32, pull bar 353 can move axially in the tie rod hole of main shaft 32, one end of pull bar 353 is sleeved in the tie rod hole of shift fork 352, the other end of pull bar 353 is provided with the draw ring hole, one end of shift fork 352 is hinged by support and headstock 31, and the other end of shift fork 352 is connected with the piston of cylinder-piston assembly 351; During use, profiling mould 354 is installed on the pattern mounting flange 323 of main shaft 32, (skirt section is the piston of on-circular cross-section in piston to be processed 355 skirt sections, piston 355 to be processed also can be the workpiece of other on-circular cross-section, the cross sectional shape that workpiece will be processed into is by the decision of the cross sectional shape of profiling mould 354) endoporus seam and profiling mould link, piston 355 to be processed by draw ring hole bolt on piston pin and the pull bar 353 on pull bar 353, the piston rod of cylinder-piston assembly 351 promotes shift fork 352, shift fork 352 drives pull bar 353 and moves to left, piston pin is strained piston 355 to be processed, because main shaft 32, profiling mould 354 and piston to be processed 355 are coaxial installation, the main axle structure of this headstock mechanism has reduced driving-chain, avoided the generation of vibration source, steady when making main shaft 32 high-speed cruisings, noise is little, has effectively guaranteed the machining accuracy of machining piston 355 under the high-speed turning state.
As Fig. 2, shown in 5: feed mechanism comprises saddle 41, middle carriage 42 and electric driving tool post mechanism 43, saddle 41 is movably arranged on the lathe bed 2 by Z axle track rail, lathe bed 2 is provided with the Z axle servomotor of driving saddle 41 Ji Roll ballscrew group 411 with saddle 41, middle carriage 42 is installed on the X-axis swallow-tail form track on the saddle 41 by the dovetail groove on it, saddle 41 and middle carriage 42 are provided with the X-axis servomotor that drives middle carriage 42 Ji Roll ballscrew group 421, and electric driving tool post mechanism 43 comprises four station carriage saddles 431, imitation-shaped knife box 432, CNC turning tool 433, numerical control recessing bit 434, numerical control tip chamfer cutter 435, electric driving tool post position rotaring motor 436 and electric driving tool post base 437; Imitation-shaped knife box 432, CNC turning tool 433, numerical control recessing bit 434 and numerical control tip chamfer cutter 435 are installed in respectively on four stations of four station carriage saddles 431, and CNC turning tool 433, numerical control recessing bit 434 and numerical control tip chamfer cutter 435 are diamond bit.
Shown in Fig. 6-9: imitation-shaped knife box 432 comprises sliding panel 4321, slide plate chair 4322, profile tracking bearing 4323 and copying turning 4324; Sliding panel 4321 cooperates by dovetail groove 4325 and dovetail rail 4326 activities with slide plate chair 4322, state the panel 43211 and the holding screw 43212 that are provided with the fit clearance of adjusting dovetail groove 4325 and dovetail rail 4326 between sliding panel 4321 and the slide plate chair 4322, be provided with extrusion spring 4327 between sliding panel 4321 and the slide plate chair 4322, profile tracking bearing 4323 is installed on the sliding panel 4321, also be provided with kidney slot 4328 on the sliding panel 4321, guide finger 4329 is installed on the slide plate chair 4322, one end of guide finger 4329 stretches in the kidney slot 4328, sliding panel 4321 also is provided with conehead holding screw 43213, copying turning 4324 is installed in the square groove of sliding panel 4322, copying turning 4324 is provided with the bellmouth 43214 that matches with conehead holding screw 43213, can carry out the trace advance and retreat by 43213 pairs of copying turnings of conehead holding screw 4324 and adjust; Under the extruding of extrusion spring 4327, sliding panel 4321 slides along the dovetail rail 4326 of slide plate chair 4322, sliding distance is limited in by 4328 li of the kidney slots of guide finger 4329 guiding, and panel 43211 and holding screw 43212 can be adjusted the fit clearance of dovetail groove 4325 and dovetail rail 4326.
Copying turning 4324 adopts polycrystalline diamond (PCD) CNC turning tool, and it is mainly used in the oval skirt section of machining piston 355; CNC turning tool 433 is mainly used in machining piston 355 end faces and cylindrical, and numerical control recessing bit 43 and numerical control tip chamfer cutter 435 are used for each annular groove of machining piston, and the transposition of four station carriage saddles 431 is driven by electric driving tool post position rotaring motor 436.
Digital control system comprises numerical control electric control cabinet 51 and numerical control platform 52; Numerical control platform 52 is installed on the case 21 in Lathe Spindle Box dead ahead, and numerical control electric control cabinet 51 is installed in the rear end of main spindle box 6.
Operation principle: copying turning 4324 Ji Roll ballscrew group 411 drives saddle 41 and the X-axis servomotor is realized the interpolation feeding Ji Roll ballscrew group 421 drives middle carriage 42, is processed the oval skirt section on the piston 355 to be processed by digital control system control Z axle servomotor; After processing oval skirt section, digital control system is sent the transposition instruction, and electric driving tool post position rotaring motor 436 drives four station carriage saddles, 431 automatic displacements, CNC turning tool 433 feeding turning piston 355 top end face and cylindricals to be processed; After this procedure finished, four station carriage saddles 431 were indexed into numerical control recessing bit 434 cutter spacing, cut out each annular groove automatically; At last, four station carriage saddles 431 go to numerical control tip chamfer cutter 435 cutter spacing, automatically each annular groove on the machining piston 355 are carried out chamfer machining, so far finish the turning processing of piston four procedures; Need only a clamping during lathe in machining piston that the utility model provides, automatic displacement by four station carriage saddles 431, can finish the high speed and precision processing of multiple working procedure, realized that a numerically controlled lathe replaces the be open to traffic machining functions of bed of several Daeporis, has increased substantially crudy and production efficiency.
The utility model does not limit to the above-mentioned concrete structure of son, so long as have identical with the utility model or the headstock mechanism that is equal to or the numerically controlled lathe of feed mechanism just drop within the protection domain of the present utility model.
Claims (9)
1. on-circular cross-section part processing numerically controlled lathe, it comprises bedstead (1), lathe bed (2), headstock mechanism, feed mechanism and digital control system, lathe bed (2) is installed on the bedstead (1); Headstock mechanism and digital control system are installed on bedstead (1) and the lathe bed (2); Feed mechanism is installed on the lathe bed (2); It is characterized in that: headstock mechanism comprises headstock (31), main shaft (32), variable-frequency motor (33) and workpiece tensioning mechanism; Main shaft (32) is installed on the headstock (31), variable-frequency motor (33) is installed in bedstead (1), it also is connected with main shaft (32) one ends with arc tooth synchronous belt wheel (332) by arc tooth synchronous belt (331), and main shaft (32) other end is provided with pattern mounting flange (323); The workpiece tensioning mechanism comprises cylinder-piston assembly (351), shift fork (352) and pull bar (353), and pull bar (353) movable set is in the tie rod hole of main shaft (32), and pull bar (353) can be with workpiece to be processed (355) with the end of core tension at main shaft (32).
2. on-circular cross-section part processing numerically controlled lathe according to claim 1, it is characterized in that: described main shaft (32) front end is bearing on the headstock (31) by three accurate angular contact ball bearings (321) of one group in three covers, and main shaft (32) rear end is bearing on the headstock (31) by one group of Biserial cylindrical roller bearing (322); One end of pull bar (353) is sleeved in the tie rod hole of shift fork (352), the other end of pull bar (353) is provided with the draw ring hole, one end of shift fork (352) is hinged by support and headstock (31), and the other end of shift fork (352) is connected with the piston of cylinder-piston assembly (351).
3. on-circular cross-section part processing numerically controlled lathe according to claim 1 and 2, it is characterized in that: described feed mechanism comprises saddle (41), middle carriage (42) and electric driving tool post mechanism (43), saddle (41) is movably arranged on the lathe bed (2), lathe bed (2) is provided with Z axle servomotor and the ball screw group (411) that drives saddle (41) with saddle (41), saddle (41) is provided with X-axis servomotor and the ball screw group (421) that drives middle carriage (42) with middle carriage (42), and electric driving tool post mechanism (43) comprises four station carriage saddles (431), imitation-shaped knife box (432), CNC turning tool (433), numerical control recessing bit (434), numerical control tip chamfer cutter (435), electric driving tool post position rotaring motor (436) and electric driving tool post base (437); Imitation-shaped knife box (432), CNC turning tool (433), numerical control recessing bit (434) and numerical control tip chamfer cutter (435) are installed in respectively on four stations of four station carriage saddles (431).
4. on-circular cross-section part processing numerically controlled lathe according to claim 3 is characterized in that: described imitation-shaped knife box (432) comprises sliding panel (4321), slide plate chair (4322), profile tracking bearing (4323) and copying turning (4324); Sliding panel (4321) cooperates by dovetail groove (4325) and dovetail rail (4326) activity with slide plate chair (4322), also be provided with the panel (43211) and the holding screw (43212) of the fit clearance of adjusting dovetail groove (4325) and dovetail rail (4326) between sliding panel (4321) and the slide plate chair (4322), be provided with extrusion spring (4327) between sliding panel (4321) and the slide plate chair (4322), profile tracking bearing (4323) is installed on the sliding panel (4321), also be provided with kidney slot (4328) on the sliding panel (4321), guide finger (4329) is installed on the slide plate chair (4322), one end of guide finger (4329) stretches in the kidney slot (4328), sliding panel (4321) also is provided with conehead holding screw (43213), copying turning (4324) is installed in the square groove of sliding panel (4322), and copying turning (4324) is provided with the bellmouth (43214) that matches with conehead holding screw (43213).
5. on-circular cross-section part processing numerically controlled lathe according to claim 1 and 2, it is characterized in that: described headstock mechanism also comprises photoimpact encoder (34), photoimpact encoder (34) is fixedly mounted on the headstock (31), and it is connected with main shaft (32) with the arc tooth synchronous belt wheel by arc tooth synchronous belt (341).
6. on-circular cross-section part processing numerically controlled lathe according to claim 3, it is characterized in that: described headstock mechanism also comprises photoimpact encoder (34), photoimpact encoder (34) is fixedly mounted on the headstock (31), and it is connected with main shaft (32) with the arc tooth synchronous belt wheel by arc tooth synchronous belt (341).
7. on-circular cross-section part processing numerically controlled lathe according to claim 4, it is characterized in that: described headstock mechanism also comprises photoimpact encoder (34), photoimpact encoder (34) is fixedly mounted on the headstock (31), and it is connected with main shaft (32) with the arc tooth synchronous belt wheel by arc tooth synchronous belt (341).
8. on-circular cross-section part processing numerically controlled lathe according to claim 4, it is characterized in that: described copying turning (4324) is the polycrystalline diamond CNC turning tool, and CNC turning tool (433), numerical control recessing bit (434) and numerical control tip chamfer cutter (435) are diamond bit.
9. on-circular cross-section part processing numerically controlled lathe according to claim 7, it is characterized in that: described copying turning (4324) is the polycrystalline diamond CNC turning tool, and CNC turning tool (433), numerical control recessing bit (434) and numerical control tip chamfer cutter (435) are diamond bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200662957U CN201500780U (en) | 2009-10-19 | 2009-10-19 | Numerically controlled lathe for machining part with non-circular section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200662957U CN201500780U (en) | 2009-10-19 | 2009-10-19 | Numerically controlled lathe for machining part with non-circular section |
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| CN201500780U true CN201500780U (en) | 2010-06-09 |
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| CN2009200662957U Expired - Fee Related CN201500780U (en) | 2009-10-19 | 2009-10-19 | Numerically controlled lathe for machining part with non-circular section |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430770A (en) * | 2011-11-07 | 2012-05-02 | 浙江震环数控机床有限公司 | Lathe auxiliary device for processing concave-convex surface of part |
| CN102825491A (en) * | 2012-07-15 | 2012-12-19 | 浙江陀曼精密机械有限公司 | Numerical control composite axis non-circular section machining mechanism |
| CN102922048A (en) * | 2012-11-25 | 2013-02-13 | 黄山诚益机床制造有限公司 | Numerical control lathe for processing worm gears |
| CN103752853A (en) * | 2013-12-11 | 2014-04-30 | 苏州日高微纳光学精密机械有限公司 | Numerical control super-precision diamond complex optical element lathe |
| CN106807954A (en) * | 2017-03-01 | 2017-06-09 | 深圳市天洲计时科技有限公司 | The processing method and device of castle wheel |
| CN107030297A (en) * | 2017-04-21 | 2017-08-11 | 耐世特凌云驱动系统（芜湖）有限公司 | CV outer shroud sliding sleeve groovers |
| CN109176276A (en) * | 2018-06-25 | 2019-01-11 | 河南工业大学 | A kind of ceramic-film tube process equipment |
| CN109550981A (en) * | 2018-12-27 | 2019-04-02 | 齐齐哈尔二机床(集团)有限责任公司 | Roll lathe compound slide |
| CN110977036A (en) * | 2019-11-08 | 2020-04-10 | 安徽东风机电科技股份有限公司 | Cutting device for machining V-shaped part and machining method thereof |
| CN111014728A (en) * | 2019-12-26 | 2020-04-17 | 济南第一机床有限公司 | Device for turning taper thin ring |
-
2009
- 2009-10-19 CN CN2009200662957U patent/CN201500780U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430770A (en) * | 2011-11-07 | 2012-05-02 | 浙江震环数控机床有限公司 | Lathe auxiliary device for processing concave-convex surface of part |
| CN102825491A (en) * | 2012-07-15 | 2012-12-19 | 浙江陀曼精密机械有限公司 | Numerical control composite axis non-circular section machining mechanism |
| CN102922048A (en) * | 2012-11-25 | 2013-02-13 | 黄山诚益机床制造有限公司 | Numerical control lathe for processing worm gears |
| CN103752853A (en) * | 2013-12-11 | 2014-04-30 | 苏州日高微纳光学精密机械有限公司 | Numerical control super-precision diamond complex optical element lathe |
| CN106807954A (en) * | 2017-03-01 | 2017-06-09 | 深圳市天洲计时科技有限公司 | The processing method and device of castle wheel |
| CN107030297A (en) * | 2017-04-21 | 2017-08-11 | 耐世特凌云驱动系统（芜湖）有限公司 | CV outer shroud sliding sleeve groovers |
| CN109176276A (en) * | 2018-06-25 | 2019-01-11 | 河南工业大学 | A kind of ceramic-film tube process equipment |
| CN109550981A (en) * | 2018-12-27 | 2019-04-02 | 齐齐哈尔二机床(集团)有限责任公司 | Roll lathe compound slide |
| CN110977036A (en) * | 2019-11-08 | 2020-04-10 | 安徽东风机电科技股份有限公司 | Cutting device for machining V-shaped part and machining method thereof |
| CN111014728A (en) * | 2019-12-26 | 2020-04-17 | 济南第一机床有限公司 | Device for turning taper thin ring |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20101019 |