CN208895748U

CN208895748U - Grinding machine

Info

Publication number: CN208895748U
Application number: CN201821756186.3U
Authority: CN
Inventors: 孙思叡
Original assignee: CHENGDU YUJU SCIENCE & TECHNOLOGY Co Ltd
Current assignee: CHENGDU YUJU SCIENCE & TECHNOLOGY Co Ltd
Priority date: 2018-10-26
Filing date: 2018-10-26
Publication date: 2019-05-24
Anticipated expiration: 2028-10-26

Abstract

A kind of grinding machine, including pedestal, the first main shaft and the second main shaft.There is the first vertical range between first main shaft and pedestal, there is the second vertical range, the first vertical range and the second vertical range are unequal between the second main shaft and pedestal.In processing to workpiece, the first main shaft and the second main shaft are set to the two sides of workpiece radial direction, non-interference.The grinding machine of the utility model is at least arranged a pair of of grinding wheel in the two sides of workpiece, while implementing roughing or finishing.When processing, two pieces of grinding wheels implement grinding to workpiece simultaneously in no particular order (i.e. grinding wheel is motionless, and workpiece is with respect to grinding wheel movement).When grinding, the grinding wheel of workpiece radially opposite sides is not in same level height, it is possible to prevente effectively from the fluctuation of grinding periodic resonance bring size and precision aspect.Due to two sides simultaneous processing, processing efficiency is significantly improved, can achieve 4 times of existing cylindrical grinder or more.

Description

Grinding machine

Technical field

The utility model relates to a kind of equipment for being machined out to workpiece more particularly to a kind of pair of workpiece to grind The equipment for cutting processing realizes the grinding of step outer circle by the way of multi-shaft interlocked.

Background technique

Numerically-controlled machine tool is a kind of automated machine tool equipped with program control system.The control system can logically handle tool There are control coding or other symbolic instruction regulated procedures, and decoded, to make machine tool action and process the control of part Unit, the operation and monitoring of numerically-controlled machine tool are all completed in numerical control unit.

Numerically-controlled machine tool is generally by several portions such as host, number control device, driving device, auxiliary device and other auxiliary devices It is grouped as.Host is the mechanical parts such as the main body of numerically-controlled machine tool, including bed piece, column, main shaft, feed mechanism.It is to be used for Complete the mechanical part of various machinings.Numerical control device is the core of numerically-controlled machine tool, including (printed circuit board, CRT are aobvious for hardware Show device, key box, paper-tape reader etc.) and corresponding software, for inputting digitized parts program, and complete input information Storage, the transformation of data, interpolation operation and realize various control functions.Driving device is the drive of numerically-controlled machine tool executing agency Dynamic component, including main shaft drives unit, feed unit, spindle motor and feeding motor etc..It leads under the control of numerical control device It crosses electrical or electrohydraulic servo system and realizes main shaft and Feed servo system.When several feedings linkage, positioning can be completed, straight line, put down The processing of surface curve and space curve.Some necessary matching components of auxiliary device system numerically-controlled machine tool, to guarantee numerical control machine The operation of bed, such as: cooling, chip removal, lubrication, illumination and monitoring.Programming and other auxiliary devices can be used to carry out zero outside machine Program composition, storage of part etc..

Several numerically-controlled machine tools such as three axis, four axis and five axis can be divided by the control number of axle.Manufacture for cutter, certain shapes The processing action of shape is related to five-shaft interlock function, it is necessary to use five-axis linkage machine tools.

The grinding of cylinder class, axial workpiece is all to pass through workpiece and grinding wheel while realizing by way of rotating.In processing, by Elongated in workpiece, general processing is difficult to ensure circularity, bounce, concentricity and straightness.Therefore, conventional process tools can all use Side grinding, the other side guarantees processing quality (such as: circularity, bounce, concentricity and straightness in such a way that supporting element follows Deng).Nonetheless, processing efficiency is not still high, thus production efficiency is restricted.

For this purpose, also having in other equipment while one piece of roughing grinding wheel and one piece of essence being respectively set in workpiece two sides Processing grinding wheel, to improve processing efficiency to a certain extent.But there are still some problems, such as: due to roughing grinding wheel and The grinding capacity for finishing grinding wheel is different, is ground simultaneously in the two sides of workpiece with such one group of grinding wheel, still will cause workpiece Beat is non-round, and increases finishing abrasion of grinding wheel.To solve this problem, it has to take two sides roughing grinding wheel and finishing Work grinding wheel is one in front and one in back arranged, i.e. grinding wheel is placed in workpiece two sides, one in front and one in back, with asymmetric two kinds of depth simultaneously to workpiece It is processed.

Utility model content

One of the utility model is designed to provide a kind of grinding machine, realizes and grinds to the outer circle (such as: step outer circle) of workpiece Cut the efficiency of processing.

Another of the utility model is designed to provide a kind of grinding machine, realizes the outer circle (such as: step outer circle) to workpiece, The cylindricalo grinding of cylinder class or axial workpiece circularity, bounce, straightness and in terms of precision.

The so-called workpiece of the utility model, is cylindric or coniform axis body, and axial length is that workpiece is axial maximum The 2 times or more of outer diameter.

The utility model provides a kind of grinding machine, comprising:

Pedestal,

First main shaft has the first vertical range between pedestal；

Second main shaft has the second vertical range between pedestal；

First vertical range and the second vertical range are unequal.

Grinding machine provided by the utility model, in processing to workpiece, the first main shaft and the second main shaft are set to workpiece Radial two sides, it is non-interference.

Grinding machine provided by the utility model further includes the first grinding wheel group, implements roughing to excircle of workpiece；First grinding wheel group Include:

First grinding wheel is set to the first main shaft；

Second grinding wheel is set to the second main shaft；

Grinding machine provided by the utility model, in processing to workpiece, the first grinding wheel and the second grinding wheel are set to workpiece Radial two sides, it is non-interference.

Grinding machine provided by the utility model further includes the second grinding wheel group, implements to finish to excircle of workpiece；Second grinding wheel group Include:

Third grinding wheel is set to the first main shaft；

4th grinding wheel is set to the second main shaft.

Grinding machine provided by the utility model, in processing to workpiece, third grinding wheel and the 4th grinding wheel are set to workpiece Radial two sides, it is non-interference.

The utility model provides another grinding machine, including

Pedestal,

First grinding mechanism comprising the first rotating shaft and the first main shaft have first to hang down between the first main shaft and pedestal Straight distance；

Second grinding mechanism comprising the second rotating shaft and the second main shaft have second to hang down between the second main shaft and pedestal Straight distance；

First grinding wheel group comprising the first grinding wheel and the second grinding wheel, the first grinding wheel are set to the first main shaft, and the second grinding wheel is set It is placed in the second main shaft；

Second grinding wheel group comprising third grinding wheel and the 4th grinding wheel, third grinding wheel are set to the first main shaft, and the 4th grinding wheel is set It is placed in the second main shaft.

Grinding machine provided by the utility model, in processing to workpiece, the first grinding mechanism and the second grinding mechanism are set The two sides of workpiece radial direction are placed in, it is non-interference.

Grinding machine provided by the utility model, the first rotating shaft are rotated around the Z-direction of XYZ coordinate system, and the second rotating shaft is sat around XYZ The Z-direction rotation of mark system.

Grinding machine provided by the utility model, the first main shaft by the first rotating shaft driving, and around the Z-direction of XYZ coordinate system revolve Turn, realizes the rotation between the first grinding wheel and third grinding wheel.Second main shaft by the second rotating shaft driving, and around XYZ coordinate system Z-direction rotation, realize the rotation between the second grinding wheel and the 4th grinding wheel.

The difference of grinding machine provided by the utility model, the first vertical range and the second vertical range is 0.3 μm~100 μm, Especially 0.3 μm~50 μm.

The utility model provides another grinding machine, comprising:

Pedestal,

Frame body is set on pedestal；

First movement mechanism, is set on pedestal, and the X along XYZ coordinate system is to moving；

Second mobile mechanism, by first movement mechanism drives edge X to movement；

Third swing mechanism, the Y-direction by second mobile mechanism's drives edge XYZ coordinate system are mobile；

First grinding mechanism, is set on frame body, and the Y-direction along XYZ coordinate system moves；

Second grinding mechanism, is set on frame body, and the Y-direction along XYZ coordinate system moves；

First grinding mechanism and the second grinding mechanism are coaxial in the Y-direction of XYZ coordinate system；

Work piece holder along X to moving, and is implemented to clamp with both ends of the third swing mechanism cooperation to workpiece.

The grinding machine of the utility model, work piece holder further include the 4th rotating shaft, for cooperating with swing mechanism to clamping Workpiece implement rotary motion.

Detector is arranged on the first grinding mechanism or the second grinding mechanism, for detecting work in the grinding machine of the utility model Part.

The utility model grinding machine, also sets up bracket, is used to support workpiece comprising

First sliding groove is arranged in first end face in first support；

Second support is set in first sliding groove, and in sliding in first sliding groove, it is sliding that second is arranged in its second end face Slot；

Third bracket, is set in second end face, slides along second sliding slot.

Another kind bracket provided by the utility model, further includes the 4th bracket, is set on third bracket, to component or work Part implements support.

Another kind bracket provided by the utility model, further includes the 5th bracket, one end is set to the peace on the 4th bracket Hole is filled, workpieces processing is implemented to support.

Various brackets provided by the utility model are set to the lower section of A axis, implement branch to the component or workpiece for being set to A axis Support.

Technical solutions of the utility model realize the utility model has the advantages that

The grinding machine of the utility model is at least arranged a pair of of grinding wheel in the two sides of workpiece, while implementing roughing or finishing. When processing, two pieces of grinding wheels implement grinding to workpiece simultaneously in no particular order (i.e. grinding wheel is motionless, and workpiece is with respect to grinding wheel movement).Grinding When, the grinding wheel of workpiece radially opposite sides not in same level height, it is possible to prevente effectively from grinding periodic resonance bring size and The fluctuation of precision aspect.Due to two sides simultaneous processing, processing efficiency is significantly improved, can achieve existing plain external grinding machine 3 times or more.

The grinding machine of the utility model is also at least arranged a pair of of grinding wheel and implements to finish to workpiece, in roughing grinding wheel from work It after part radially opposite sides carry out roughing, supports each other, can guarantee the precision of processing by knife to avoid workpiece.Simultaneously as two Rapid stock-removal can be implemented in the main shaft of side not contour (resonance caused by being ground to avoid equalization).After the completion of roughing, two sides Main shaft is driven and 180 ° of revolution by rotating shaft, then completes the obtained production of workpiece in the two sides of workpiece while with finishing wheel grinding Product.After tested, the circularity of product can achieve within ± 1 μm, and bounce, straightness and concentricity can also be guaranteed ± 1 μm Within.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of one embodiment of the utility model grinding machine；

Fig. 2 is the structural schematic diagram of another angle of grinding machine shown in FIG. 1.

Specific embodiment

The technical solution of the utility model is described in detail below in conjunction with attached drawing.The utility model embodiment is only to illustrate this The technical solution of utility model rather than limit, although the utility model is described in detail referring to preferred embodiment, ability Domain it is to be appreciated by one skilled in the art that can be modified or replaced equivalently to the technical solution of utility model, without de- From the spirit and scope of the technical scheme of the present invention, should all cover in the scope of the claims of the utility model.

Fig. 1 is the structural schematic diagram of one embodiment of the utility model grinding machine, and Fig. 2 is another angle of grinding machine shown in FIG. 1 Structural schematic diagram.As depicted in figs. 1 and 2, the grinding machine of the present embodiment includes pedestal 60 and frame body 70, and frame body 70 is set to pedestal 60 On.

First movement mechanism 10 is set on pedestal 60, along the X along XYZ coordinate system to moving.Second mobile mechanism 20 by 10 drives edge X of first movement mechanism is to movement.

Third swing mechanism 50 is A axis, mobile by 20 drives edge Y-direction of the second mobile mechanism around X to rotary motion.

First grinding mechanism 30 is set on frame body 70, and the Y-direction along XYZ coordinate system moves.The setting of second grinding mechanism 40 In on frame body 70, the Y-direction along XYZ coordinate system is moved.

First grinding mechanism 30 includes the first rotating shaft 31 and the first main shaft 32.Z-direction of first main shaft 32 along XYZ coordinate system It is mobile, there is the first vertical range H1 between pedestal 60.Second grinding mechanism 40 includes the second revolution 41 and the second main shaft 42.First grinding mechanism and the second grinding mechanism move in the Y-direction guide rail of a secondary XYZ coordinate system.Second main shaft 42 is along XYZ The Z-direction of coordinate system is mobile, has the second vertical range H2 between pedestal 60.First vertical range H1 and the second vertical range H2 Difference be 0.3 μm~100 μm.In the present embodiment, a pair of of roughing grinding wheel is respectively arranged at the first main shaft 32 and the second main shaft 42, and a pair of of finishing grinding wheel is respectively arranged at the first main shaft 32 and the second main shaft 42.It is arranged on the first grinding mechanism 30 Detector 92 is used for detection workpieces 80.

In the present embodiment, frame body 70 uses gantry vertical rod structure, is fixed on pedestal 60, crossbeam is on planer-type column Using 1 secondary linear guide, 2 secondary ball-screws are respectively driven by 2 permanent magnet synchronous direct-driven motors, realize 32 He of the first electro spindle Second electro spindle 42 moves on crossbeam along Y-direction, and moves along Z-direction.First electro spindle 32 and the second electro spindle 42 are double End face electro spindle, when processing to workpiece, the first electro spindle 32 and the second electro spindle 42 are located at the radial two sides of workpiece 80, It is non-interference, implement the processing of step outer circle.

Work piece holder 91 moves along the x-axis, and implements to clamp with both ends of the swing mechanism cooperation to workpiece.In the present embodiment, Work piece holder further includes the 4th rotating shaft, for implementing rotary motion with workpiece of the third swing mechanism cooperation to clamping.

Grinding machine provided in this embodiment is at least arranged a pair of of grinding wheel in the two sides of workpiece, while implementing roughing or finishing Work.When processing, two pieces of grinding wheels implement grinding to workpiece simultaneously in no particular order (i.e. grinding wheel is motionless, and workpiece is with respect to grinding wheel movement).Mill When cutting, the grinding wheel of workpiece radially opposite sides is not in same level height, it is possible to prevente effectively from grinding periodic resonance bring size And the fluctuation of precision aspect.After roughing grinding wheel carries out roughing from workpiece radially opposite sides, support each other, it can be to avoid workpiece It allows knife and guarantees the precision of processing.Simultaneously as the main shaft of two sides not contour (resonance caused by being ground to avoid equalization) can To implement rapid stock-removal.After the completion of roughing, two sides main shaft by rotating shaft drive and turn round 180 °, then the two sides of workpiece simultaneously Workpiece is completed with finishing wheel grinding, and product is made.It is less than and is equal to 300mm with length, outer diameter is less than and equal to 300mm's For cylindrical work, optics tool setting gauge, out of roundness instrument, the measurement of three coordinate units is respectively adopted in the workpiece after processing, product Circularity can achieve within ± 1 μm, and bounce, straightness and concentricity can also be guaranteed within ± 1 μm.

Claims

1. a kind of grinding machine, characterized by comprising:

Pedestal,

There is the first vertical range between first main shaft, with the pedestal；

There is the second vertical range between second main shaft, with the pedestal；

First vertical range and second vertical range are unequal；

In processing to workpiece, first main shaft and second main shaft are set to radial two of the workpiece Side, it is non-interference.

2. grinding machine according to claim 1, it is characterised in that first vertical range and described second vertically away from From difference be 0.3 μm~100 μm.

3. grinding machine according to claim 1, it is characterised in that first vertical range and described second vertically away from From difference be 0.3 μm~50 μm.

4. grinding machine according to claim 1, it is characterised in that further include the first grinding wheel group, implement thick add to excircle of workpiece Work；The first grinding wheel group includes:

First grinding wheel is set to first main shaft；

Second grinding wheel is set to second main shaft.

5. grinding machine according to claim 4, it is characterised in that further include the second grinding wheel group, implement finishing to excircle of workpiece Work；Second grinding wheel group includes:

Third grinding wheel is set to the first main shaft；

4th grinding wheel is set to the second main shaft.

6. a kind of grinding machine, characterized by comprising:

Pedestal,

First grinding mechanism comprising the first rotating shaft and the first main shaft have between first main shaft and the pedestal There is the first vertical range；

Second grinding mechanism comprising the second rotating shaft and the second main shaft have between second main shaft and the pedestal There is the second vertical range；

First grinding wheel group comprising the first grinding wheel and the second grinding wheel, first grinding wheel are set to first main shaft, institute The second grinding wheel stated is set to second main shaft；

Second grinding wheel group comprising third grinding wheel and the 4th grinding wheel, the third grinding wheel are set to first main shaft, institute The 4th grinding wheel stated is set to second main shaft；

In processing to workpiece, the first grinding mechanism and the second grinding mechanism are set to the two sides of workpiece radial direction, do not do mutually It relates to.

7. grinding machine according to claim 6, it is characterised in that first vertical range and described second vertically away from From difference be 0.3 μm~100 μm.

8. grinding machine according to claim 6, it is characterised in that first vertical range and described second vertically away from From difference be 0.3 μm~50 μm.

9. grinding machine according to claim 6, it is characterised in that first rotating shaft is rotated around the Z-direction of XYZ coordinate system Z-direction with the second rotating shaft around XYZ coordinate system rotates.

10. grinding machine according to claim 6, it is characterised in that drive of first main shaft by first rotating shaft It is dynamic, and rotated around the Z-direction of XYZ coordinate system, make the rotation between first grinding wheel and the third grinding wheel.

11. grinding machine according to claim 6, it is characterised in that drive of second main shaft by second rotating shaft It is dynamic, and rotated around the Z-direction of XYZ coordinate system, make the rotation between second grinding wheel and the 4th grinding wheel.

12. grinding machine according to claim 6, it is characterised in that first grinding mechanism and second milling drum Structure moves in the Y-direction guide rail of a secondary XYZ coordinate system.

13. grinding machine according to claim 6, it is characterised in that be ground in first grinding mechanism or described second Detector is set in mechanism, is used for detection workpieces.

14. grinding machine described according to claim 1~one of 13, it is characterised in that further include:

Frame body is set on the pedestal；

First movement mechanism is set on the pedestal, and the X along XYZ coordinate system is to moving；

Second mobile mechanism, by the first movement mechanism drives edge X to movement；

Third swing mechanism, the Y-direction by second mobile mechanism's drives edge XYZ coordinate system are mobile.

15. grinding machine according to claim 14, it is characterised in that further include work piece holder, along X to moving, and with it is described The cooperation of third swing mechanism clamping is implemented to the both ends of workpiece.

16. grinding machine according to claim 15, it is characterised in that the work piece holder further includes the 4th rotating shaft, is used for Implement rotary motion with workpiece of the third swing mechanism cooperation to clamping.