CN201907036U - Numerical control grinding machine used for grinding taper hole and end surface of electric main shaft - Google Patents
Numerical control grinding machine used for grinding taper hole and end surface of electric main shaft Download PDFInfo
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- CN201907036U CN201907036U CN2010205644657U CN201020564465U CN201907036U CN 201907036 U CN201907036 U CN 201907036U CN 2010205644657 U CN2010205644657 U CN 2010205644657U CN 201020564465 U CN201020564465 U CN 201020564465U CN 201907036 U CN201907036 U CN 201907036U
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- taper hole
- main shaft
- grinding head
- grinding
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Abstract
The utility model relates to a numerical control grinding machine, particularly to the numerical control grinding machine specially used for accurately grinding a taper hole and an end surface of an electric main shaft. The numerical control grinding machine comprises a machine tool body, a taper hole grinding head component, an end surface grinding head component, a workpiece feeding component and a control system, wherein, the taper hole grinding head component comprises a taper hole grinding head and a feeding mechanism, and is installed at the right end of the machine tool body; the end surface grinding head component comprises an end surface grinding head and the feeding mechanism, and is installed at the middle rear end of the machine tool body; and the workpiece feeding component comprises the feeding mechanism and a workpiece mounting base, and is installed at the left end of the machine tool body. An included angle formed between the feeding axes of the end surface grinding head component and the feeding axes of the taper hole grinding head component is a taper hole half angle; in addition, the main shaft to be grounded is installed inside the workpiece mounting base, and the included angle formed between the spinning axes of the main shaft to be grounded and the feeding axes of the workpiece feeding component is also the taper hole half angle. The numerical control grinding machine with the simple structure is convenient to manufacture, can be used for grinding the taper hole and the end surface through clamping for one time, avoids the processing error and the assembling error caused by repeated clamping, and reduces the assembling difficulty of the electric main shaft.
Description
Technical field:
The utility model relates to a kind of numerically control grinder, particularly a kind of taper hole and end face accurate grinding numerically control grinder that is exclusively used in electric main shaft.
Background technology:
In the automatic tool changer lathe, being connected of main shaft and handle of a knife relies on the conical surface to locate usually.Development along with High-speed Machining Technology, people have proposed new requirement to high-speed main spindle with coupling stiffness, the precision of handle of a knife: when main shaft is connected with handle of a knife, the mode that increasing high speed machining of electric main shaft has adopted the conical surface and end face two sides to locate simultaneously is as being connected of main shaft and HSK handle of a knife, BIG-PLUS handle of a knife.Owing to adopted between main shaft and the handle of a knife and crossed location and installation, thereby must strict guarantee taper hole datum line and the axial location precision of end face and the form error of taper hole and end face in manufacture process, the difficulty of manufacturing increased so virtually greatly.
For the taper hole of finishing above-mentioned requirements and the processing of end face, the omnipotent internal and external grinding machine of many employings is as machining tool in the prior art, to locate taper hole and end face when parts are processed respectively grinding put in place, assemble the every precision index requirement that reaches complete machine then.This processing method must repeatedly be installed and adjust grinding machine, and the taper hole that processes and the form and position tolerance of end face are difficult to reach requirement; Even the shaped position precision of the taper hole of main shaft and end face processing reaches requirement, when dressing up electric main shaft complete machine, also may be because the influence of assembly method, other element precision cause the complete machine running accuracy defective.
Summary of the invention:
The purpose of this utility model is to overcome deficiency of the prior art, a kind of simple in structure, easily manufactured electric spindle taper hole and cross grinding numerically control grinder are provided, the location taper hole of electric main shaft complete machine and the grinding of end face can be realized by the process of being installed once, every tolerance of shape, position of related features and the main shaft complete machine of taper hole datum line and end face can be effectively guaranteed.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of taper hole of electric main shaft and cross grinding numerically control grinder are made up of lathe bed, taper hole grinding head assembly, end face grinding head assembly, workpiece feeder assembly, control system; Control system comprises Computerized digital control system and feed system; The taper hole grinding head assembly comprises taper hole bistrique and feed mechanism, is installed in the right-hand member of lathe bed; The end face grinding head assembly comprises end face bistrique and feed mechanism, is installed in rear end in the lathe bed; The workpiece assembly comprises feed mechanism and workpiece mount pad, is installed in the lathe bed left end.In the installation process, end face grinding head assembly feeding axis becomes taper hole half-angle α/2 with the angle of taper hole grinding head assembly feeding axis; Wait to grind in the workpiece mount pad that electric main shaft is installed in the workpiece assembly, its spin axis also becomes taper hole half-angle α/2 with the angle of workpiece assembly feeding axis.The feed mechanism of above-mentioned three assemblies is fixedly mounted on the lathe bed respectively; Taper hole bistrique, end face bistrique, workpiece mount pad connect firmly respectively on planker, link to each other with feed mechanism by planker.
The taper hole of described electric main shaft and cross grinding numerically control grinder, the feed mechanism of its three assemblies can be made up of servomotor, ball-screw, guide rail and shaft coupling respectively, also can be other feeding mode.
The taper hole of described electric main shaft and cross grinding numerically control grinder, its servomotor adopts no gap yielding coupling and ball-screw direct connection, and the leading screw front end adopts high accuracy leading screw bearing fixed bearing, and support with the high accuracy deep groove ball bearing rear end.
The taper hole of described electric main shaft and cross grinding numerically control grinder, the angle of its end face grinding head assembly feeding axis and taper hole grinding head assembly feeding axis, wait to grind the spin axis of electric main shaft and the angle of workpiece assembly feeding axis can be adjusted by guiding mechanism, but must guarantee that two angles equate and equal to wait to grind the taper hole half-angle of electric main shaft.
Compared with prior art, the beneficial effects of the utility model are: the taper hole of described electric main shaft and cross grinding numerically control grinder, by a card engaging workpiece, can finish the grinding on taper hole and end face two sides, avoided in the process mismachining tolerance that causes because of card engaging workpiece repeatedly; Owing to be to wait to grind the spin of electric main shaft to do rotary feed, avoided the assembly precision error that produces in the assembling process, reduced the assembly difficulty of electric main shaft.
Description of drawings:
Vertical view when Fig. 1 is the grinding taper hole.
Vertical view when Fig. 2 is the grinding end face.
Front view when Fig. 3 is the grinding end face.
The specific embodiment:
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
As Fig. 1～shown in Figure 3, the utility model is made up of lathe bed, taper hole grinding head assembly, end face grinding head assembly, workpiece feeder assembly, control system.Control system comprises Computerized digital control system and feed system.
Lathe bed 1 adopts monoblock cast sealing frame type structure, the annular muscle rib of inner employing, and inverted T shape is arranged, has improved the integral rigidity of grinding machine.The taper hole grinding head assembly is installed in the right-hand member of lathe bed 1, comprise taper hole bistrique 2 and X-axis servo feed mechanism, wherein the X-axis servo feed mechanism is made up of servomotor 7, shaft coupling 6, X-axis ball screw assembly, 4, X-axis line slideway auxiliary 5, they are fixedly mounted on the bed piece, and the taper hole bistrique 2 by X-axis planker 3 and vertical direction links to each other; Taper hole bistrique 2 can be along laterally (X-axis) motion under the dragging of servo feed mechanism.The end face grinding head assembly is installed in the middle rear end of lathe bed 1, comprise end face bistrique 15 and W axle servo feed mechanism two parts content, wherein W axle servo feed mechanism is made up of servomotor 11, shaft coupling 10, W axle ball screw assembly, 13, W axle line slideway auxiliary 12, they are fixedly mounted on the bed piece, and the end face bistrique 15 by W axis carriage 14 and vertical direction links to each other; End face bistrique 15 can move along oblique (W axle) under the dragging of feed mechanism.The workpiece feeder assembly is installed in the left end of lathe bed table top, it comprises Z axle servo feed mechanism and workpiece mount pad 8, wherein Z axle servo feed mechanism is made up of servomotor 19, shaft coupling 18, Z axle ball screw assembly, 16, Z axle line slideway auxiliary 17, their ends are fixedly mounted on the bed piece, the other end connects firmly by the workpiece mount pad 8 of Z axis carriage and vertical direction, drags to be installed in treating in the workpiece mount pad 8 and to grind electric main shaft 9 motions.In order to guarantee finishing of taper hole and cross grinding process, in each assembly installation process, must guarantee 2 points: the one,, end face grinding head assembly feeding axis (W axle) becomes taper hole half-angle α/2 with the angle of taper hole grinding head assembly feeding axis (X-axis); The 2nd,, the spin axis of waiting to grind electric main shaft also becomes taper hole half-angle α/2 with the angle of workpiece assembly feeding axis (Z axle).
Wait to grind electric main shaft 9 and be installed in the workpiece mount pad 8, only need clamping once, just can finish the grinding on taper hole and end face two sides.When carrying out the taper hole grinding, wait to grind electric main shaft 9 and vertically earlier move on to the appropriate location soon, change linear reciprocating motion longitudinally then into, done the rotary feed campaign by electric main shaft 9 rotations of mill simultaneously at the drive lower edge of Z axle servo feed mechanism Z axle; Taper hole bistrique 2 carries out grinding in the traverse feed that the driving lower edge of X-axis feed mechanism X-axis is done trace.After having ground taper hole, the drive of Z axle feed mechanism is waited to grind electric main shaft 9 and is return fast, W axle servo feed mechanism drives end face bistrique 15 and moves on to the appropriate location soon along the W axle, the feeding at a slow speed of Z axle servo feed mechanism, treat the cross grinding emery wheel and by the mill electric main shaft rotor end-face contact after, do again the interruption uniform feeding come the grinding end face.
Introduce the main performance index of one of embodiment below:
The workpiece taper hole is with respect to the circular runout of rotation :≤0.001mm;
Workpiece end face is with respect to the total run-out of rotation :≤0.002mm;
The roughness of workpiece grinding skin: Ra0.4.
Claims (4)
1. the taper hole of an electric main shaft and cross grinding numerically control grinder, it is characterized in that: it is made up of lathe bed, taper hole grinding head assembly, end face grinding head assembly, workpiece feeder assembly, control system; Control system comprises Computerized digital control system and feed system; The taper hole grinding head assembly comprises taper hole bistrique and feed mechanism, is installed in the right-hand member of lathe bed; The end face grinding head assembly comprises end face bistrique and feed mechanism, is installed in rear end in the lathe bed; The workpiece assembly comprises feed mechanism and workpiece mount pad, is installed in the lathe bed left end; In the installation process, end face grinding head assembly feeding axis becomes taper hole half-angle α/2 with the angle of taper hole grinding head assembly feeding axis; Wait to grind in the workpiece mount pad that electric main shaft is installed in the workpiece assembly, its spin axis also becomes taper hole half-angle α/2 with the angle of workpiece assembly feeding axis; The feed mechanism of above-mentioned three assemblies is fixedly mounted on the lathe bed respectively; Taper hole bistrique, end face bistrique, workpiece mount pad connect firmly respectively on planker, link to each other with feed mechanism by planker.
2. the taper hole of a kind of electric main shaft according to claim 1 and cross grinding numerically control grinder, it is characterized in that: the feed mechanism of described three assemblies can be made up of servomotor, ball-screw, guide rail and shaft coupling respectively.
3. the taper hole of a kind of electric main shaft according to claim 2 and cross grinding numerically control grinder, it is characterized in that: described servomotor adopts no gap yielding coupling and ball-screw direct connection, the leading screw front end adopts high accuracy leading screw bearing fixed bearing, and support with the high accuracy deep groove ball bearing rear end.
4. the taper hole of a kind of electric main shaft according to claim 1 and cross grinding numerically control grinder, it is characterized in that: the angle of described end face grinding head assembly feeding axis and taper hole grinding head assembly feeding axis, wait to grind the spin axis of electric main shaft and the angle of workpiece assembly feeding axis can be adjusted by guiding mechanism, but must guarantee that two angles equate and equal to wait to grind the taper hole half-angle of electric main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205644657U CN201907036U (en) | 2010-10-18 | 2010-10-18 | Numerical control grinding machine used for grinding taper hole and end surface of electric main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205644657U CN201907036U (en) | 2010-10-18 | 2010-10-18 | Numerical control grinding machine used for grinding taper hole and end surface of electric main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201907036U true CN201907036U (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205644657U Expired - Lifetime CN201907036U (en) | 2010-10-18 | 2010-10-18 | Numerical control grinding machine used for grinding taper hole and end surface of electric main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201907036U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059602A (en) * | 2010-10-18 | 2011-05-18 | 北京精雕精密机械制造有限公司 | Numerically controlled grinder for grinding taper hole and end face of motorized spindle |
| CN103084942A (en) * | 2013-01-25 | 2013-05-08 | 江苏瑞普机床有限公司 | Small-hole inner conical surface precision computer numerical control (CNC) grinder |
| CN105058178A (en) * | 2015-08-31 | 2015-11-18 | 自贡中兴耐磨新材料有限公司 | Machining grinding machine and method for taper holes |
| CN104647155B (en) * | 2014-03-03 | 2017-04-05 | 广西西江锅炉制造有限公司 | Pipe outer-diameter end face Pipe grinding machine |
-
2010
- 2010-10-18 CN CN2010205644657U patent/CN201907036U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059602A (en) * | 2010-10-18 | 2011-05-18 | 北京精雕精密机械制造有限公司 | Numerically controlled grinder for grinding taper hole and end face of motorized spindle |
| CN102059602B (en) * | 2010-10-18 | 2012-11-14 | 北京精雕精密机械制造有限公司 | Numerically controlled grinder for grinding taper hole and end face of motorized spindle |
| CN103084942A (en) * | 2013-01-25 | 2013-05-08 | 江苏瑞普机床有限公司 | Small-hole inner conical surface precision computer numerical control (CNC) grinder |
| CN103084942B (en) * | 2013-01-25 | 2015-01-21 | 江苏瑞普机床有限公司 | Small-hole inner conical surface precision computer numerical control (CNC) grinder |
| CN104647155B (en) * | 2014-03-03 | 2017-04-05 | 广西西江锅炉制造有限公司 | Pipe outer-diameter end face Pipe grinding machine |
| CN105058178A (en) * | 2015-08-31 | 2015-11-18 | 自贡中兴耐磨新材料有限公司 | Machining grinding machine and method for taper holes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110727 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |