CN210475583U - Eccentric shaft machining tool - Google Patents

Eccentric shaft machining tool Download PDF

Info

Publication number
CN210475583U
CN210475583U CN201921447175.1U CN201921447175U CN210475583U CN 210475583 U CN210475583 U CN 210475583U CN 201921447175 U CN201921447175 U CN 201921447175U CN 210475583 U CN210475583 U CN 210475583U
Authority
CN
China
Prior art keywords
eccentric shaft
rotating
clamping arm
eccentric wheel
machining tool
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
CN201921447175.1U
Other languages
Chinese (zh)
Inventor
徐荣辉
王超
倪立永
张凯
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.)
Beijing Zhitong Precision Drive Technology Co Ltd
Original Assignee
Beijing Zhitong Precision Drive Technology 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 Beijing Zhitong Precision Drive Technology Co Ltd filed Critical Beijing Zhitong Precision Drive Technology Co Ltd
Priority to CN201921447175.1U priority Critical patent/CN210475583U/en
Application granted granted Critical
Publication of CN210475583U publication Critical patent/CN210475583U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses an eccentric shaft processing frock, the eccentric shaft includes the pivot and sets up in the last eccentric wheel and the lower eccentric wheel of pivot, the axis of eccentric shaft, last eccentric wheel and lower eccentric wheel is not coincident, eccentric shaft processing frock includes the fixing base of being connected with the lathe, the circular groove of stepping down with eccentric wheel looks adaptation is seted up in one side that the fixing base kept away from the lathe in it, circular mounting groove has been seted up to the diapire in circular groove of stepping down, clamping mechanism demountable installation is passed through in circular mounting groove in the pivot, clamping mechanism presss from both sides tight arm and is used for driving the drive assembly that first clamp tight arm and the tight arm of second clamp are close to each other or keep away from including the first clamp tight arm that sets up relatively and second, the pivot is located between the tight arm of first clamp and the tight arm of second clamp. It has the advantage of being convenient for mass production the same specification eccentric shaft.

Description

Eccentric shaft machining tool
Technical Field
The utility model relates to a mechanical engineering processing frock field especially relates to an eccentric shaft processing frock.
Background
The RV reducer has the advantages of high transmission precision, small return difference, good rigidity, small volume, large transmission ratio, high bearing capacity and the like, so that the RV reducer is widely applied to the fields of automobile and automobile part manufacturing, packaging, medicine, aerospace and the like. In the RV reducer, the use amount of eccentric shafts is large, and each reducer is matched with three eccentric shafts.
When an ordinary numerical control lathe is used for machining an eccentric shaft, the eccentric shaft to be machined needs to be positioned through clamping tools such as a three-jaw chuck, a four-jaw chuck and the like, wherein when an eccentric workpiece is turned on the four-jaw chuck, an eccentric circle and cross lines in the horizontal and vertical directions are firstly drawn on the workpiece, and the position of the workpiece in the four-jaw chuck is determined according to the lines; when the three-jaw self-centering chuck is used for machining an eccentric workpiece, a gasket is arranged on one jaw to enable the workpiece to be eccentric for turning. However, when a new workpiece needs to be replaced, each workpiece needs to be repositioned when being machined, and when workpieces with the same specification need to be manufactured, the workpieces clamped again and the finished workpieces are difficult to keep front-back consistency of coaxiality, so that the eccentric shafts with the same specification are not beneficial to mass production.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an eccentric shaft processing frock, it has the advantage of the same specification eccentric shaft of the mass production of being convenient for.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides an eccentric shaft processing frock, the eccentric shaft includes the pivot and sets up in the last eccentric wheel and the eccentric wheel down of pivot, the axis of eccentric shaft, last eccentric wheel and eccentric wheel down does not coincide, eccentric shaft processing frock includes the fixing base of being connected with the lathe, the circular groove of stepping down with eccentric wheel looks adaptation is seted up in its one side of keeping away from the lathe to the fixing base, circular mounting groove has been seted up to the diapire in circular groove of stepping down, clamping mechanism demountable installation is passed through in circular mounting groove in the pivot, clamping mechanism presss from both sides tight arm and is used for driving the drive assembly that first clamp tight arm and the tight arm of second clamp are close to each other or keep away from including the first clamp tight arm that sets up relatively and second, the pivot is located between the tight arm of first clamp and the tight arm of second clamp.
By adopting the technical scheme, the fixed seat is connected with the lathe, the rotating shaft penetrates through the round abdicating groove and extends to the round mounting groove, the driving component is driven, and the driving component drives the first clamping arm and the second clamping arm to be close to each other, so that the first clamping arm and the second clamping arm clamp the eccentric shaft; when the eccentric shaft is machined, the lathe drives the fixing seat to rotate, the rotating shaft is limited on the fixing seat, the eccentric shaft synchronously rotates along with the fixing seat, and therefore the lower eccentric wheel and the upper eccentric wheel of the eccentric shaft are machined; when batch production, because the distance between the center of circular groove of stepping down and the lateral wall of fixing base is certain, the distance between the center of circular mounting groove and the lateral wall of fixing base is certain for batch production's eccentric shaft specification is the same, consequently, the utility model has the advantages of the same specification eccentric shaft of the batch production of being convenient for.
The utility model discloses further set up to: the drive assembly includes rotates the dwang of being connected with the fixing base, the dwang is provided with first screw thread and second screw thread, first screw thread and second screw thread opposite direction, first press from both sides tight arm offer with the first screw thread department threaded connection's of dwang first screw thread screw hole, the second press from both sides tight arm offer with the second screw thread department threaded connection's of dwang second screw thread screw hole.
Through adopting above-mentioned technical scheme, rotate the dwang, drive first clamp arm and second clamp arm along the length direction relative motion of dwang under the effect of dwang, realize that first centre gripping arm and second centre gripping arm are close to each other, and then the first centre gripping arm of being convenient for and second centre gripping arm press from both sides tight eccentric shaft.
The utility model discloses further set up to: a transverse sliding groove is formed in the bottom wall of the circular mounting groove, a first sliding block is fixedly arranged on one side, close to the bottom wall of the circular mounting groove, of the first clamping arm, and the first sliding block is connected with the transverse sliding groove in a sliding mode; and a second sliding block is arranged on one side of the second clamping arm close to the bottom wall of the circular mounting groove, and the second sliding block is connected with the transverse sliding groove in a sliding manner.
Through adopting above-mentioned technical scheme, be convenient for first clamp arm and the sliding connection of circular mounting groove diapire, the sliding connection of the second clamp arm and circular mounting groove diapire of being convenient for.
The utility model discloses further set up to: the first threaded hole is opened in the first sliding block, the second threaded hole is opened in the second sliding block, and the rotating rod is located in the transverse sliding groove.
Through adopting above-mentioned technical scheme, the removal in the horizontal groove that slides of the first sliding block of drive and second sliding block of the dwang of being convenient for realizes that first sliding block and second sliding block are close to each other or keep away from.
The utility model discloses further set up to: the driving assembly further comprises a driving rod arranged on the fixed seat, a first bevel gear fixedly arranged on the driving rod and a second bevel gear fixedly arranged on the rotating rod, and the first bevel gear is meshed with the second bevel gear; the fixing seat is provided with a first rotating hole on one side far away from the lathe, the driving rod is rotatably connected to the first rotating hole, and the driving rod extends to the outside of the fixing seat.
By adopting the technical scheme, the driving rod is driven, the first bevel gear rotates under the action of the driving rod, the first bevel gear is meshed with the second bevel gear, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the rotating rod to rotate as the second bevel gear is fixedly arranged on the rotating rod.
The utility model discloses further set up to: the installation cavity is internally provided with a supporting seat, the supporting seat is provided with a second rotating hole, and the driving rod is rotatably connected with the second rotating hole.
Through adopting above-mentioned technical scheme, the dwang passes through the supporting seat to realize being connected with the rotation of fixing base.
The utility model discloses further set up to: the driving rod is fixedly provided with a rotating disc at one end positioned outside the fixed seat, the rotating disc is provided with a plurality of limiting holes, one side of the fixed seat close to the rotating disc is provided with a threaded hole, a stop bolt is arranged between the rotating disc and the fixed seat, and the stop bolt is arranged in the limiting hole in a penetrating way and is in threaded connection with the threaded hole
Through adopting above-mentioned technical scheme, locking bolt and screw hole threaded connection make the rolling disc can dismantle fixed connection with the fixing base, and then prevent actuating lever circumferential direction.
The utility model discloses further set up to: the rotating disc is provided with a rotating handle, and the rotating handle and the axis of the driving rod are not overlapped.
Through adopting above-mentioned technical scheme, rotate the dwang, the dwang drives the rolling disc and rotates, and the rolling disc of being convenient for drives the actuating lever and rotates.
To sum up, the utility model discloses following beneficial effect has: install the fixing base on the lathe, place the eccentric shaft of treating processing in the circular inslot of stepping down of fixing base, in the lower extreme of eccentric shaft extended to the circular mounting groove of fixing base, drive assembly, drive assembly drove first clamp arm and second and presss from both sides tight arm and be close to each other, makes first clamp arm and second press from both sides tight arm and press from both sides tight pivot, and then makes the pivot spacing in the circular mounting groove of fixing base. When the lower eccentric wheel and the upper eccentric wheel are machined, the lathe drives the fixed seat to rotate, and the lower eccentric wheel and the upper eccentric wheel to be machined rotate along with the rotating shaft under the action of the fixed seat, so that the lower eccentric wheel and the upper eccentric wheel of the eccentric shaft are machined; because the distance between the center of circular groove of stepping down and the lateral wall of fixing base is certain, distance between the center of circular mounting groove and the lateral wall of fixing base is certain for there is certain eccentricity between the center of lower eccentric wheel and the center of last eccentric wheel and the eccentric shaft center, make batch production's eccentric shaft specification the same, consequently, the utility model has the advantages of be convenient for mass production the same specification eccentric shaft.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of a fixing base in an embodiment of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
fig. 5 is a schematic view of the overall structure of the eccentric wheel limiting in the circular abdicating groove in the embodiment of the present invention.
In the figure, 1, a fixed seat; 11. a circular abdicating groove; 12. a circular mounting groove; 121. a transverse sliding groove; 13. a mounting cavity; 131. a rotating seat; 132. a supporting seat; 2. an eccentric shaft; 21. a lower eccentric wheel; 22. an upper eccentric wheel; 23. a rotating shaft; 31. a first clamp arm; 311. a first sliding block; 32. a second clamp arm; 321. a second sliding block; 33. a drive assembly; 331. rotating the rod; 332. a drive rod; 333. a first bevel gear; 334. a second bevel gear; 4. rotating the disc; 41. a limiting hole; 42. rotating the handle; 5. and stopping the bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses an eccentric shaft processing frock, eccentric shaft 2 includes pivot 23 and the last eccentric wheel 22 and the lower eccentric wheel 21 that set up with pivot 23 integrated into one piece, goes up eccentric wheel 22 and lower eccentric wheel 21 and sets up along the axis direction interval of pivot 23, and the pivot 23, the axis of going up eccentric wheel 22 and lower eccentric wheel 21 do not coincide.
Combine fig. 1 and fig. 2, eccentric shaft 2 processing frock includes fixing base 1 of being connected with the lathe, and fixing base 1 is cylindrical setting, and fixing base 1 is offered in its one side of keeping away from the lathe with the circular groove 11 of stepping down of eccentric wheel looks adaptation, and the axis of circular groove 11 of stepping down does not coincide with the axis of fixing base 1.
Circular mounting groove 12 has been seted up to the diapire of circular groove 11 of stepping down, and the center of circular groove 11 of stepping down does not coincide with the center of circular mounting groove 12, and has certain first eccentricity between the center of circular groove 11 of stepping down and the center of circular mounting groove 12, and the axis coincidence of the center of circular mounting groove 12 and eccentric shaft 2.
The lower extreme of eccentric shaft 2 can peg graft in circular mounting groove 12, and is provided with certain distance between the diapire of the lower extreme of eccentric shaft 2 and circular mounting groove 12, and the distance between the diapire of eccentric shaft 2 lower extreme and circular mounting groove 12 equals the distance etc. between the lower surface of lower eccentric wheel 21 and the circular groove 11 diapire of stepping down.
Referring to fig. 1, 3 and 4, the rotation shaft 23 is detachably mounted in the circular mounting groove 12 by a clamping mechanism including first and second clamping arms 31 and 32 and a driving assembly 33 driving the first and second clamping arms 31 and 32 to approach or separate from each other, and the rotation shaft 23 is located between the first and second clamping arms 31 and 32.
The first clamping arm 31 and the second clamping arm 32 are respectively arranged at two sides of the rotating shaft 23, the first clamping arm 31 is arranged in an arc shape, the radian of the first clamping arm 31 is matched with the outer peripheral wall of the eccentric shaft 2, the outer peripheral wall of the first clamping arm 31 abuts against the inner peripheral wall of the circular mounting groove 12, and the inner peripheral wall of the first clamping arm 31 abuts against the rotating shaft 23; the second clamping arm 32 is arc-shaped, the radian of the second clamping arm 32 is matched with the outer peripheral wall of the rotating shaft 23, the outer peripheral wall of the second clamping arm 32 is abutted to the inner peripheral wall of the circular mounting groove 12, and the inner peripheral wall of the second clamping arm 32 is abutted to the rotating shaft 23.
Referring to fig. 3 and 4, the driving assembly 33 includes a rotating rod 331, a driving rod 332, a first bevel gear 333, and a second bevel gear 334, the rotating rod 331 being provided with a first thread and a second thread, the first thread and the second thread being oppositely threaded.
A first bevel gear 333 is welded to a lower end of the driving rod 332, the first bevel gear 333 and the driving rod 332 coaxially rotate, a second bevel gear 334 is welded to the rotating rod 331, the second bevel gear 334 and the rotating rod 331 coaxially rotate, and the first bevel gear 333 and the second bevel gear 334 are engaged.
A transverse sliding groove 121 is formed in the bottom wall of the circular mounting groove 12, a first sliding block 311 is integrally formed on one side, close to the bottom wall of the circular mounting groove 12, of the first clamping arm 31, and the first sliding block 311 is connected with the transverse sliding groove 121 in a sliding mode; the second clamping arm 32 is integrally formed with a second sliding block 321 at a side close to the bottom wall of the circular mounting groove 12, and the second sliding block 321 is connected with the transverse sliding groove 121 in a sliding manner.
The first sliding block 311 is provided with a first threaded hole in threaded connection with the first threaded portion of the rotating rod 331, and the second sliding block 321 is provided with a second threaded hole in threaded connection with the second threaded portion of the rotating rod 331.
The rotating rod 331 is located in the transverse sliding groove 121, and a first via hole is formed in the side wall of the circular mounting groove 12.
Fixing base 1 has seted up installation cavity 13, and dwang 331 wears to locate and extends to installation cavity 13 inside behind the first via hole, and fixing base 1 has rotation seat 131 in the lateral wall welding that is close to dwang 331, and dwang 331 rotates with rotation seat 131 through the bearing to be connected.
The inner side wall of the fixed seat 1 is welded with a supporting seat 132 for supporting the driving rod 332, the supporting seat 132 is arranged right above the first bevel gear 333, and the supporting seat 132 is provided with a second through hole; first rotation hole has been seted up in one side of keeping away from the lathe to fixing base 1, and the outside that extends to fixing base 1 after second via hole and the first rotation hole is worn to locate in order by actuating lever 332.
The driving rod 332 is welded with the rotating disc 4 at one end outside the fixed seat 1, a plurality of limiting holes 41 are formed in the rotating disc 4, the limiting holes 41 are distributed in a circumferential array mode in the rotating disc 4, a threaded hole is formed in one side, close to the rotating disc 4, of the fixed seat 1, a stop bolt 5 is arranged between the rotating disc 4 and the fixed seat 1, and the stop bolt 5 is connected with the threaded hole in a threaded mode after penetrating through the limiting holes 41.
The upper surface of the rotary disk 4 is provided with a rotary handle 42, and the axes of the rotary handle 42 and the drive rod 332 do not coincide.
The implementation principle of the embodiment is as follows: install fixing base 1 on the lathe, place the eccentric shaft 2 of treating processing in the circular mounting groove 12 of fixing base 1, rotate and rotate 42, drive the rolling disc 4 rotation under the effect of rotation 42, make actuating lever 332 drive dwang 331 circumferential direction, dwang 331 acts on first clamp arm 31 and second clamp arm 32, make first clamp arm 31 and second clamp arm 32 be close to each other, first clamp arm 31 and second clamp arm 32 press from both sides tight pivot 23, and then make the eccentric shaft 2 of treating processing spacing in the circular mounting groove 12 of fixing base 1. When the lower eccentric wheel 21 is machined, the eccentric shaft 2 to be machined rotates along with the rotating shaft 23 under the action of the fixed seat 1, so that the lower eccentric wheel 21 of the eccentric shaft 2 is machined, after the lower eccentric wheel 21 is machined, the clamping state of the first clamping arm 31 and the second clamping arm 32 on the rotating shaft 23 is released, the eccentric shaft 2 is rotated, the lower eccentric wheel 21 is limited in the circular abdicating groove 11 (as shown in fig. 5), the eccentric shaft 2 to be machined is limited in the circular mounting groove 12 of the fixed seat 1 again, and the upper eccentric wheel 22 is convenient to machine; when the eccentric shafts 2 are produced in batch, the distance between the center of the circular abdicating groove 11 and the side wall of the fixed seat 1 is kept unchanged, and the distance between the center of the circular mounting groove 12 and the side wall of the fixed seat 1 is kept unchanged, so that the distance between the center of the lower eccentric wheel 21 produced in batch and the axis of the eccentric shaft 2 is fixed, the processed lower eccentric wheel 21 has the same specification, the distance between the center of the upper eccentric wheel 22 produced in batch and the axis of the eccentric shaft 2 is fixed, and the processed upper eccentric wheel 22 has the same specification. Therefore, the utility model has the advantages of be convenient for mass production the same specification eccentric shaft 2.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The eccentric shaft machining tool comprises a rotating shaft (23), an upper eccentric wheel (22) and a lower eccentric wheel (21) which are arranged on the rotating shaft (23), and the eccentric shaft (2), the upper eccentric wheel (22) and the lower eccentric wheel (21) are not overlapped in axis, and is characterized in that the eccentric shaft (2) machining tool comprises a fixed seat (1) connected with a lathe, one side, away from the lathe, of the fixed seat (1) is provided with a circular abdicating groove (11) matched with the lower eccentric wheel (21), the bottom wall of the circular abdicating groove (11) is provided with a circular mounting groove (12), the rotating shaft (23) is detachably mounted in the circular mounting groove (12) through a clamping mechanism, the clamping mechanism comprises a first clamping arm (31) and a second clamping arm (32) which are arranged oppositely, and a driving component (33) for driving the first clamping arm (31) and the second clamping arm (32) to be close to or far away from each other, the rotating shaft (23) is located between the first clamping arm (31) and the second clamping arm (32).
2. The eccentric shaft machining tool according to claim 1, wherein the driving assembly (33) comprises a rotating rod (331) rotatably connected with the fixed seat (1), the rotating rod (331) is provided with a first thread and a second thread, the first thread and the second thread are opposite in spiral direction, the first clamping arm (31) is provided with a first threaded hole in threaded connection with the first thread of the rotating rod (331), and the second clamping arm (32) is provided with a second threaded hole in threaded connection with the second thread of the rotating rod (331).
3. The eccentric shaft machining tool according to claim 2, characterized in that a transverse sliding groove (121) is formed in the bottom wall of the circular mounting groove (12), a first sliding block (311) is fixedly arranged on one side, close to the bottom wall of the circular mounting groove (12), of the first clamping arm (31), and the first sliding block (311) is connected with the transverse sliding groove (121) in a sliding manner; and a second sliding block (321) is arranged on one side of the second clamping arm (32) close to the bottom wall of the circular mounting groove (12), and the second sliding block (321) is connected with the transverse sliding groove (121) in a sliding manner.
4. The eccentric shaft machining tool according to claim 3, wherein the first threaded hole is formed in the first sliding block (311), the second threaded hole is formed in the second sliding block (321), and the rotating rod (331) is located in the transverse sliding groove (121).
5. The eccentric shaft machining tool according to claim 2, wherein the fixing seat (1) is provided with a mounting cavity (13), the driving assembly (33) further comprises a driving rod (332) arranged on the fixing seat (1), a first bevel gear (333) fixedly arranged on the driving rod (332) and a second bevel gear (334) fixedly arranged on the rotating rod (331), and the first bevel gear (333) is engaged with the second bevel gear (334); the fixing seat (1) is provided with a first rotating hole at one side far away from the lathe, the driving rod (332) is rotatably connected to the first rotating hole, and the driving rod (332) extends to the outside of the fixing seat (1).
6. The eccentric shaft machining tool according to claim 5, wherein a support seat (132) is disposed in the mounting cavity (13), the support seat (132) is provided with a second rotation hole, and the driving rod (332) is rotatably connected to the second rotation hole.
7. The eccentric shaft machining tool according to claim 5, characterized in that a rotating disc (4) is fixedly arranged at one end of the driving rod (332) located outside the fixed seat (1), a plurality of limiting holes (41) are formed in the rotating disc (4), a threaded hole is formed in one side, close to the rotating disc (4), of the fixed seat (1), a stop bolt (5) is arranged between the rotating disc (4) and the fixed seat (1), and the stop bolt (5) penetrates through the limiting holes (41) and then is in threaded connection with the threaded hole.
8. The eccentric shaft machining tool according to claim 7, characterized in that the rotating disc (4) is provided with a rotating handle (42), and the axes of the rotating handle (42) and the driving rod (332) are not coincident.
CN201921447175.1U 2019-08-30 2019-08-30 Eccentric shaft machining tool Active CN210475583U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921447175.1U CN210475583U (en) 2019-08-30 2019-08-30 Eccentric shaft machining tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921447175.1U CN210475583U (en) 2019-08-30 2019-08-30 Eccentric shaft machining tool

Publications (1)

Publication Number Publication Date
CN210475583U true CN210475583U (en) 2020-05-08

Family

ID=70538636

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921447175.1U Active CN210475583U (en) 2019-08-30 2019-08-30 Eccentric shaft machining tool

Country Status (1)

Country Link
CN (1) CN210475583U (en)

Similar Documents

Publication Publication Date Title
JP3987380B2 (en) Tool holder for turret lathe
CN202491111U (en) Lathe and cutter handle
KR101900655B1 (en) Turret tool holder and machine tool provided with said turret tool holder
US4847960A (en) Tool turret
CN210099385U (en) Two-two linkage self-centering chuck for pipe cutting machine
US4638550A (en) Horizontal drilling and milling machine
US3221404A (en) Cutting tool adapter
JP4572133B2 (en) Internal processing equipment for hollow workpieces
CN101454120A (en) Machine tool
CN210475583U (en) Eccentric shaft machining tool
US5544556A (en) Reversibly rotatable chuck with internal cam for shifting work axis
JP4965011B2 (en) Machine tool and its operating method
JP5557587B2 (en) Internal processing equipment for hollow workpieces
CN112192321A (en) Double-spindle double-station inverted vertical turning and milling composite machine tool and machining process and application thereof
JP4256098B2 (en) 2-spindle facing lathe
US4471521A (en) Rotary head for machining and simultaneously polishing the peripheral surface of shafts or the like
JP2005001080A (en) Shaft-shaped workpiece supporting and driving device
JPH0871803A (en) Edge preparing device
JP2001322001A (en) Composite working lathe
JP4364961B2 (en) Workpiece reversing device
EP0059494A1 (en) Tool changer
CN214922277U (en) High-precision workbench
CN212762531U (en) Cylindrical grinder frock clamping device
US3386317A (en) Bore machining mechanism
CN212496500U (en) Deep hole boring car combined machining center headstock

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant