CN101486161A - Internal spherical surface raceway grinding machine indexing mechanism - Google Patents
Internal spherical surface raceway grinding machine indexing mechanism Download PDFInfo
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- CN101486161A CN101486161A CNA2009103004817A CN200910300481A CN101486161A CN 101486161 A CN101486161 A CN 101486161A CN A2009103004817 A CNA2009103004817 A CN A2009103004817A CN 200910300481 A CN200910300481 A CN 200910300481A CN 101486161 A CN101486161 A CN 101486161A
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- main shaft
- grinding machine
- spherical surface
- bearing
- positioning
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Abstract
The invention relates to a spherical inside surface roller way grinding machine index device, which comprises a main shaft, a machine head box body and a stepper motor, wherein the front part in the machine head box body is provided with a positioning oil cylinder, and the back part is provided with a fixed fluted disc. The main shaft passes through the positioning oil cylinder and the fixed fluted disc, and a front bearing is arranged between the main shaft and a front end cover of the positioning oil cylinder. A back bearing is arranged between the main shaft and the fixed fluted disc, and the main shaft and the stepper motor are connected through a synchronizing band. The main shaft is provided with a moving fluted disc, and the front part of the moving fluted disc is positioned in a positioning cylinder body of the oil cylinder equivalent to a piston. The back part of the moving fluted disc extends out of a back end cover of the positioning oil cylinder, and is engaged with the end face of the fixed fluted disc. The inside of the central hole of the main shaft is provided with a clamp. The spherical inside surface roller way grinding machine index device can obtain higher positioning precision and repeated positioning precision, and guarantee the positioning of a workpiece not to change because of the influence of cutting force when the workpiece is machined, so the spherical inside surface roller way grinding machine index device has strong carrying capacity and good positioning rigidity. The spherical inside surface roller way grinding machine index device has the advantages of compact structure, small volume and proper numerical control index.
Description
Technical field
The present invention relates to the lathe indexing means.
Background technology
Grinding for some peculiar parts needs special purpose grinder to finish, the clutch can of automobile ball-cage constant velocity universal joint for example, the Internal Spherical Surface of clutch can has 6 raceways, the precision of raceway is the key that guarantees this part quality, internal spherical surface raceway is finished by Internal Spherical Surface numerical control raceway grinding machine, Internal Spherical Surface numerical control raceway grinding machine utilizes indexing means with the clutch can clamping, and makes its rotation, calibration and location.The special-purpose indexing means of clutch can internal spherical surface raceway grinding machine is finished by motor-driven at present, so positioning accuracy is lower, bearing capacity is lower.And being subjected to restriction on the Internal Spherical Surface numerical control raceway grinding machine clamp structure, the universal numerical control dividing head can't be arranged.
Summary of the invention
The objective of the invention is to propose a kind of positioning accuracy height, internal spherical surface raceway grinding machine indexing mechanism that bearing capacity is strong.
For achieving the above object, the present invention takes following technical scheme:
The present invention has main shaft, headstock housing and stepper motor, stepper motor is fixed on the top of headstock housing, front portion in the headstock housing is provided with positional cylinder, the rear portion is provided with fixed tooth disk, positional cylinder comprises drive end bearing bracket, cylinder body and rear end cap, described main shaft passes from positional cylinder and fixed tooth disk, be provided with fore bearing between the drive end bearing bracket of main shaft and positional cylinder, be provided with rear bearing between main shaft and the fixed tooth disk, be connected by synchronous band between main shaft and the described stepper motor, main shaft is provided with can make axially movable active toothed disk, the front portion of active toothed disk is in the location cylinder body of oil cylinder and is equivalent to piston, stretch out and the engagement of fixed tooth disk end face from the rear end cap of positional cylinder at the rear portion of active toothed disk, and main shaft is provided with centre bore, is provided with anchor clamps in the centre bore of main shaft.
Ball bearing and preceding thrust bearing before described fore bearing comprises.
Described rear bearing comprises back thrust bearing and back ball bearing.
The centre bore front portion of described main shaft is a counter sink; Described anchor clamps comprise elasticity folder, positioning sleeve, preceding top, back push rod, butterfly spring, push oil cylinder; Described elasticity folder is arranged on the front portion of the centre bore of main shaft, the elasticity folder is made up of clamping head and cramping body, clamping head is in the counter sink of spindle hole, between the anterior hole wall of the front portion of clamping head and the counter sink of main shaft is that the conical surface contacts, the bottom of clamping head is provided with annular groove, described positioning sleeve is connected on the main shaft by the annular groove of clamping head, cramping body has preceding axial hole, top rear portion is inserted in the preceding axial hole of cramping body and both are for being dynamically connected before described, in preceding axial hole and at the rear portion of push rod, be provided with and push spring, described back push rod inserts with the elasticity folder from the centre bore rear portion of main shaft and is connected, described butterfly spring is enclosed within on the push rod of back, the butterfly spring rear portion is provided with interstage sleeve, and the described oil cylinder that pushes is provided with the rear end of its piston rod facing to the back push rod.
Releasable connection has locating end plate on the front end face of described positioning sleeve; Releasable connection has locating piece on the inwall of described clamping head aperture.
Described cramping body is provided with radial direction through hole, and the preceding top axially directed groove that is provided with is provided with a guide finger in the radial direction through hole of cramping body and the preceding top axially directed groove.
The cramping body of described elasticity folder is provided with the back axial hole, and described back push rod is threaded in the axial hole of back, is fixed by nut.
The present invention has following good effect: 1, the present invention realizes the initial calibration of workpiece location by stepper motor by the workpiece of band drive synchronously calibration, finishes the location by fixed tooth disk and active toothed disk engagement again, so can obtain high orientation precision and repetitive positioning accuracy.2, the active toothed disk front portion of this device promptly is a piston, can be with fixed tooth disk after the engagement and active toothed disk locking, guarantee that workpiece adds man-hour, the location of workpiece does not change because of the influence of cutting force, so bearing capacity is strong, positioning and rigid is good, has improved that present internal spherical surface raceway grinding machine indexing mechanism comes bearing torque by motor merely and the shortcoming that do not guarantee positioning accuracy.3, the present invention utilizes limited space rational deployment, so compact conformation, volume is little.4, structure fitness number control division of the present invention.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the present invention is further detailed explanation, wherein
Fig. 1 is a configuration diagram of the present invention;
Fig. 2 is main shaft and anchor clamps diagrammatic sketch.
The specific embodiment
See accompanying drawing, present embodiment has main shaft 1, headstock housing 9 and stepper motor 10, and headstock housing 9 is fixed on the frame of internal spherical surface raceway grinding machine.Stepper motor 10 is fixed on the top of headstock housing 9 by support 11, and in the headstock housing 9 and forwardly be fixed with positional cylinder 5, the rear portion is fixed with fixed tooth disk 7, and main shaft 1 passes positional cylinder 5 and fixed tooth disk 7.Positional cylinder 5 comprises drive end bearing bracket 5-1, cylinder body 5-2 and rear end cap 5-3.Be provided with fore bearing 4 between main shaft 1 and the fixed tooth disk 7, ball bearing 4-1 and preceding thrust bearing 4-2 before fore bearing 4 comprises.Be provided with rear bearing 6 between main shaft 1 and the fixed tooth disk 7, rear bearing 4 comprises back thrust bearing 4-1 and back ball bearing 4-2.
The output shaft 10-1 of described stepper motor 10 is provided with small pulley 3-1, and main shaft 1 is provided with big belt wheel 3-2, between small pulley 3-1 and the big belt wheel 3-2 by being with 3 to be connected synchronously.
Described main shaft 1 is provided with can make axially movable active toothed disk 8, the front portion of active toothed disk 8 is in the cylinder body 5-2 of location and is equivalent to piston, stretch out from the rear end cap 5-3 of positional cylinder 5 at the rear portion of active toothed disk 8, the front end face of fixed tooth disk 7 is flank of tooth, the rear end face of active toothed disk 8 is flank of tooth, and active toothed disk 8 stretches out and fixed tooth disk 7 engagements from the rear end cap 5-3 of positional cylinder 5.Oil pocket a and back oil pocket b before being provided with in the cylinder body 5-2, on the wall of cylinder body 5-2 and forward and backward relatively oil pocket a, b be provided with before oilhole 5-2-1 and back oilhole 5-2-2.
Under the state that active toothed disk 8 and fixed tooth disk 7 are thrown off, rotate an angle by stepper motor 10 by being with 3 drive workpiece 12 synchronously, before hydraulic oil injects by preceding oilhole 5-2-1 during oil pocket a, hydraulic oil among the back oil pocket b releases by back oilhole 5-2-2, and active toothed disk 8 moves and the engagement of fixed tooth disk 7 end faces backward.When hydraulic oil when back oilhole 5-2-2 injects back oil pocket b, active toothed disk 8 moves forward, active toothed disk 8 is thrown off with fixed tooth disk 7, stepper motor starts, and drives workpiece and rotates an angle again.
The centre bore 1-1 front portion of described main shaft 1 is counter sink 1-1-1.Described anchor clamps 2 comprise elasticity folder 2-1, positioning sleeve 2-2, preceding top 2-5, back push rod 2-9, butterfly spring 2-10, push oil cylinder 2-13.
Described elasticity folder 2-1 is arranged on the front portion of the centre bore 1-1 of main shaft 1, and elasticity folder 2-1 is made up of clamping head 2-1-1 and cramping body 2-1-2, and clamping head 2-1-1 is among the counter sink 1-1-1 of main shaft 1 centre bore 1-1.Between the anterior hole wall of the counter sink 1-1-1 of the front portion of clamping head 2-1-1 and main shaft 1 is that the conical surface contact, can elasticity folder 2-1 energy firm grip workpiece 12, and make the center of workpiece 12 consistent with the center of anchor clamps.The bottom of clamping head 2-1-1 is provided with annular groove 2-1-3, and the end face of described positioning sleeve 2-2 is provided with end cap 2-3, and positioning sleeve 2-2 places the annular groove 2-1-3 of clamping head 2-1-1, positioning sleeve 2-2 is connected on the main shaft 1 by end cap 2-3 by bolt 2-1-4.Cramping body 2-1-2 has preceding axial hole and back axial hole, described before the rear portion of top 2-5 insert in the preceding axial hole of cramping body 2-1-2 and both for being dynamically connected, in preceding axial hole and at the rear portion of preceding top 2-5, be provided with and push spring 2-7.For top 2-5 before preventing comes off in the radial direction through hole of cramping body 2-1-2 owing to push spring 2-7, preceding top 2-5 is provided with axially directed groove 2-5-1, the cramping body 2-1-2 of elasticity folder 2-1 is provided with radial direction through hole, is provided with a guide finger 2-6 among the axially directed groove 2-5-1 of the radial direction through hole of cramping body 2-1-2 and preceding top 2-5.
Described back push rod 2-9 inserts the back from the centre bore 1-1 rear end of main shaft 1 and is threaded with the back axial hole of cramping body 2-1-2, and is fixed by nut 2-8.Described butterfly spring 2-10 is enclosed within on the push rod 2-9 of back, and butterfly spring 2-10 rear portion is provided with the interstage sleeve 2-11 that is enclosed within on the push rod 2-9 of back, and the rear side of interstage sleeve 2-11 is provided with the double nut 2-12 that is threaded on the push rod 2-9 of back.The described oil cylinder 2-13 that pushes is provided with facing to the rear end of back push rod 2-9 with its piston rod 2-13-1.Pushing oil cylinder 2-13 is fixed on the frame.
The screw thread releasable connection has the locating end plate 2-3 of workpiece axial location on the front end face of described positioning sleeve 2-2; The screw thread releasable connection has the locating piece 2-4 of workpiece radial location on the inwall of described clamping head 2-1-1 aperture.The workpiece of processing difformity and specification need be changed elasticity folder 2-1 hurriedly, and only need change locating end plate 2-3 and locating piece 2-4 gets final product.
In the present embodiment, processed workpiece 12 is clutch cans, when the piston rod that pushes oil cylinder 2-13 stretches out, push the back push rod 2-9 of anchor clamps to the right, overcome the strain of butterfly spring 2-10, the cramping body 2-1-2 of the elasticity folder that back push rod 2-9 promotion meanwhile is attached thereto, elasticity folder 2 is stretched out outside the main shaft, clutch can 12 is released, by preceding top 2-5 workpiece is sent under the effect that pushes spring 25, has finished the action of unclamping of clutch can.When the piston rod withdrawal that pushes oil cylinder 2-13, back push rod 2-9 makes 2 withdrawals of elasticity folder under the effect of disk spring 2-10.Finished the clamping action of workpiece.
Claims (7)
- [claim 1]1, a kind of internal spherical surface raceway grinding machine indexing mechanism, it is characterized in that: it has main shaft (1), headstock housing (9) and stepper motor (10), stepper motor (10) is fixed on the top of headstock housing (9), front portion in the headstock housing (9) is provided with positional cylinder (5), the rear portion is provided with fixed tooth disk (7), positional cylinder (5) comprises drive end bearing bracket (5-1), cylinder body (5-2) and rear end cap (5-3), described main shaft (1) passes from positional cylinder and fixed tooth disk (7), be provided with fore bearing (4) between the drive end bearing bracket (5-1) of main shaft (1) and positional cylinder (5), be provided with rear bearing (6) between main shaft (1) and the fixed tooth disk (7), be connected by synchronous band (3) between main shaft (1) and the described stepper motor (10), main shaft (1) is provided with can make axially movable active toothed disk (8), the front portion of active toothed disk (8) is in the location cylinder body (5-2) of oil cylinder (5) and is equivalent to piston, stretch out and the engagement of fixed tooth disk (7) end face from the rear end cap (5-3) of positional cylinder (5) at the rear portion of active toothed disk (8), main shaft (1) is provided with centre bore, is provided with anchor clamps (2) in the centre bore of main shaft (1).
- [claim 2]2, internal spherical surface raceway grinding machine indexing mechanism according to claim 1 is characterized in that: described fore bearing (4) comprises preceding ball bearing (4-1) and preceding thrust bearing (4-2).
- [claim 3]3, internal spherical surface raceway grinding machine indexing mechanism according to claim 1 is characterized in that: described rear bearing (4) comprises back thrust bearing (4-1) and back ball bearing (4-2).
- [claim 4]4, internal spherical surface raceway grinding machine indexing mechanism according to claim 1 is characterized in that: centre bore (1-1) front portion of described main shaft (1) is counter sink (1-1-1); Described anchor clamps (2) comprise elasticity folder (2-1), positioning sleeve (2-2), preceding top (2-5), back push rod (2-9), butterfly spring (2-10), push oil cylinder (2-13); Described elasticity folder (2-1) is arranged on the front portion of the centre bore (1-1) of main shaft (1), elasticity folder (2-1) is made up of clamping head (2-1-1) and cramping body (2-1-2), clamping head (2-1-1) is in the counter sink (1-1-1) of main shaft (1) centre bore (1-1), between the anterior hole wall of counter sink (1-1-1) of the front portion of clamping head (2-1-1) and main shaft (1) is that the conical surface contacts, the bottom of clamping head (2-1-1) is provided with annular groove (2-1-3), described positioning sleeve (2-2) is connected on the main shaft (1) by the annular groove (2-1-3) of clamping head (2-1-1), cramping body (2-1-2) has preceding axial hole, the rear portion of top (2-5) is inserted in the preceding axial hole of cramping body (2-1-2) and both are for being dynamically connected before described, in preceding axial hole and at the rear portion of push rod (2-5), be provided with and push spring (2-7), described back push rod (2-9) inserts with elasticity folder (21) from centre bore (1-1) rear portion of main shaft (1) and is connected, described butterfly spring (2-10) is enclosed within on the back push rod (2-9), butterfly spring (2-10) rear portion is provided with interstage sleeve (2-11), and the described oil cylinder (2-13) that pushes is provided with the rear end of its piston rod (2-13-1) facing to back push rod (2-9).
- [claim 5]5, internal spherical surface raceway grinding machine indexing mechanism according to claim 4 is characterized in that: releasable connection has locating end plate (2-3) on the front end face of described positioning sleeve (2-2); Releasable connection has locating piece (2-4) on the inwall of described clamping head (2-1-1) aperture.
- [claim 6]6, internal spherical surface raceway grinding machine indexing mechanism according to claim 5, it is characterized in that: described cramping body (2-1-2) is provided with radial direction through hole, preceding top (2-5) is provided with axially directed groove (2-5-1), in the axially directed groove (2-5-1) of the radial direction through hole of cramping body (2-1-2) and preceding top (2-5) guide finger (2-6) is set.
- [claim 7]7, internal spherical surface raceway grinding machine indexing mechanism according to claim 4 is characterized in that: the cramping body (2-1-2) of described elasticity folder is provided with the back axial hole, and described back push rod (2-9) is threaded in the axial hole of back, and is fixing by nut (2-8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103004817A CN101486161B (en) | 2009-02-19 | 2009-02-19 | Internal spherical surface raceway grinding machine indexing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103004817A CN101486161B (en) | 2009-02-19 | 2009-02-19 | Internal spherical surface raceway grinding machine indexing mechanism |
Publications (2)
| Publication Number | Publication Date |
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| CN101486161A true CN101486161A (en) | 2009-07-22 |
| CN101486161B CN101486161B (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103004817A Expired - Fee Related CN101486161B (en) | 2009-02-19 | 2009-02-19 | Internal spherical surface raceway grinding machine indexing mechanism |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744666A (en) * | 2012-07-03 | 2012-10-24 | 上海交通大学 | Numerical control accurate grinding device and grinding method for seal ring internal spherical surface |
| CN103111919A (en) * | 2013-01-30 | 2013-05-22 | 安阳市文峰缸套有限责任公司 | Accurate grinding outer circle tool |
| CN104259987A (en) * | 2014-09-12 | 2015-01-07 | 濮阳贝英数控机械设备有限公司 | Elastic clamp device and clamping method |
| CN107617974A (en) * | 2017-09-26 | 2018-01-23 | 高勇 | A kind of sander |
| CN108296987A (en) * | 2018-02-01 | 2018-07-20 | 扬州大学 | A kind of clutch can self-centering clamping and pop-up fixture and its application method |
-
2009
- 2009-02-19 CN CN2009103004817A patent/CN101486161B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744666A (en) * | 2012-07-03 | 2012-10-24 | 上海交通大学 | Numerical control accurate grinding device and grinding method for seal ring internal spherical surface |
| CN102744666B (en) * | 2012-07-03 | 2014-11-19 | 上海交通大学 | Numerical control accurate grinding device and grinding method for seal ring internal spherical surface |
| CN103111919A (en) * | 2013-01-30 | 2013-05-22 | 安阳市文峰缸套有限责任公司 | Accurate grinding outer circle tool |
| CN104259987A (en) * | 2014-09-12 | 2015-01-07 | 濮阳贝英数控机械设备有限公司 | Elastic clamp device and clamping method |
| CN107617974A (en) * | 2017-09-26 | 2018-01-23 | 高勇 | A kind of sander |
| CN107617974B (en) * | 2017-09-26 | 2023-12-08 | 深圳市富信泰科技有限公司 | Polisher |
| CN108296987A (en) * | 2018-02-01 | 2018-07-20 | 扬州大学 | A kind of clutch can self-centering clamping and pop-up fixture and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101486161B (en) | 2010-08-04 |
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Granted publication date: 20100804 Termination date: 20140219 |