CN102172889A - Universal grinding head device for vertical turning center - Google Patents
Universal grinding head device for vertical turning center Download PDFInfo
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- CN102172889A CN102172889A CN2011100507830A CN201110050783A CN102172889A CN 102172889 A CN102172889 A CN 102172889A CN 2011100507830 A CN2011100507830 A CN 2011100507830A CN 201110050783 A CN201110050783 A CN 201110050783A CN 102172889 A CN102172889 A CN 102172889A
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- bistrique
- grinding head
- main shaft
- frequency converter
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Abstract
The invention discloses a universal grinding head device for a vertical turning center, which adopts a numerical control system to stimulate a spindle axis for driving a grinding head, and is characterized in that a fluted disc is arranged at the top of a grinding head upper support and is engaged and located with a fluted disc at the lower end of a ram, is tensioned by blind rivet; a grinding head front support and a grinding head rear support are respectively arranged on the two symmetrical edges of the grinding head upper support so as to form a door frame structure, the lower ends of the grinding head front support and the grinding head rear support are respectively and vertically intersected with a grinding head electric spindle axis standing below the door frame structure through a left horizontal support axis and a right horizontal support axis, and the axis end of the grinding head electric spindle axis is arranged on the grinding head of a grinding wheel. The power of the electric spindle axis reaches up to 18.5kW, the highest rotating speed is 3,000rpm, the output radial runout and end surface runout of the grinding wheel axis are both smaller than 0.002mm, the width of the grinding wheel is 63mm, and the largest diameter of the grinding wheel can reach up to 400mm. With the universal grinding head device, high-precision workpiece can not be clamped once, and can be finished products after being subjected to a plurality of working procedure machining continuously.
Description
Technical field
The present invention relates to the plant equipment manufacturing, a kind of universal grinding device that is used for the large-scale vertical turning milling center.
Background technology
In recent years, flourish along with domestic equipment manufacture, outstanding as the more apparent status of the machine industry of equipment manufacture machine tool, in order to adapt to the demand of various industrial enterprises, the numerous and confused high-accuracy multifunctional lathe of releasing of lathe manufacturers.Through the market survey analysis, traditional can only carry out the lathe of single processing (as lathe, milling machine, grinding machine etc.) market demand progressively atrophy, present many industries all need the Mobyneb lathe, both the workpiece lathe of multiple operation such as can carrying out turning, milling processing that once is installed to guarantee the processing work precision, was enhanced productivity.
Therefore, machining center arises.At present, common machining center has vertical machining centre, horizontal Machining centers, milling-lathe machining center, boring-mill work center etc. in the market.But for the required precision height, the demanding workpiece of surface smoothness still will carry out grinding after the completion of processing in the heart on grinding machine in car, boring-mill work, guarantee machining accuracy.
Summary of the invention
The purpose of this invention is to provide the omnipotent grinding head device of a kind of vertical turning milling center, can realize that high-precision workpiece can not once be installed, carry out multiple operation processing continuously until finished product.
The omnipotent grinding head device of vertical turning milling center adopts the digital control system analog main shaft to drive bistrique, it is characterized in that end-toothed disc engagement location under bistrique upper bracket top installation fluted disc and the ram, and by blind rivet both is strained; Bistrique upper bracket two symmetrical limits have preceding bearing of bistrique and bistrique rear support to constitute doorframe structure respectively, bearing and bistrique rear support lower end are respectively by installations that intersect vertically of the left back shaft of level, right back shaft and the bistrique electricity main shaft that is erected in the doorframe structure below, the axle head installation emery wheel bistrique of the electric main shaft of bistrique before the bistrique.
The omnipotent grinding head device of vertical turning milling center of the present invention mainly drives abrasive grinding wheel by an electric main shaft and rotates at a high speed and form.The power of its electric main shaft is up to 18.5KW, and maximum speed is 3000rpm, and the grinding wheel spindle circular runout of output and end face run-out are all less than 0.002mm, and the width of abrasive grinding wheel is 63mm, and maximum grinding wheel diameter can reach 400mm.Powerful water-cooled during grinding and the circulation of electric main shaft cooling all are to supply with by turnning and milling ram internal pipeline, and the power resources of electric main shaft also are by ram internal circuit pipeline, and are connected supply through ram with universal grinding device quick change plug before.
The technology of the present invention main points and corresponding remarkable result:
1. after universal grinding device provided by the invention is applied to vertical turning milling center, realized that workpiece once is installed, carry out the processing of continuous turning, milling, drilling, bore hole, tapping, grinding, significantly reduced the non-cutting time of non-processing, improved the working (machining) efficiency of vertical turning milling center.This many universal grindings device is rationally distributed, has enough rigidity, and low can the realization of cost produced in enormous quantities.
2. structure is simple relatively, and is easy for installation, saves time.
3. universal grinding device of the present invention can be implemented in the interior arbitrarily angled grinding of carrying out of 180 degree scopes, add and by inner turbine and worm self-locking and the inner double retaining mechanism of retaining mechanism separately a main spindle's is locked man-hour, guaranteed the grinding accuracy of vertical turning milling center.
4. universal grinding device of the present invention can be realized excircle of workpiece, hole, lining, end face, inclined-plane etc. are carried out grinding, is the excellent functions annex of vertical turning milling center, really reaches the grinding machine quality.With the high performance-price ratio import substitutes, promote the market competitiveness at a low price.
Description of drawings
Fig. 1 universal grinding device overall structure schematic diagram;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the rearview of Fig. 1;
Fig. 4 is the vertical view of Fig. 1;
Fig. 5 is a universal grinding device cross-sectional schematic;
Fig. 6 is the retaining mechanism cross-sectional schematic;
Fig. 7 is electric control theory figure.
The specific embodiment
The omnipotent grinding head device of vertical turning milling center is seen Fig. 1, adopts the digital control system analog main shaft to drive bistrique, it is characterized in that bistrique upper bracket 1 top installation fluted disc 5, see Fig. 4, strain both by four blind rivets of ram end face end-toothed disc engagement location under fluted disc 5 and the ram.1 liang of symmetrical limit of bistrique upper bracket has preceding bearing 3 of bistrique and bistrique rear support 4 to constitute doorframe structures respectively, bearing 3 and bistrique rear support 4 lower ends are respectively by installations that intersect vertically of the left back shaft 16 of level, right back shaft 10 and the bistrique electricity main shaft 2 that is erected in the doorframe structure below, the axle head installation emery wheel 24 of bistrique electricity main shaft 2 before the bistrique.
Bearing 3 puts together on the left side of bistrique upper bracket 1 before the bistrique by 8 powerful screws, turbine 12, worm screw 13 are installed in bearing 3 bottoms before the bistrique, back shaft 10 paths by general flat key be arranged in back shaft 10 footpaths with copper sheathing 15 on the bearing 3 before turbine 12 cooperates, puts together on bistrique, back shaft 10 big footpaths are closed by 2 on the electric main shaft of ring flange and bistrique and are connected.
The axle front end of worm screw 13 stretches out the part of the preceding bearing 1 of bistrique handwheel 11 is installed, and is used to adjust the angle of abrasive grinding wheel; Fig. 2 is seen in the left side of bearing 3 before the bistrique, and the external part of back shaft 10 is installed a dial 14, and scale is spent between positive 90 degree from bearing 90, and the emery wheel bistrique can be by manually adjusting angle in this 180 degree scope.The center of back shaft 10 is exactly that grinding electricity main shaft changes the pendulum angle pivot that the emery wheel direction is carried out the different modes grinding, see Fig. 5, copper sheathing 15 replaces bearing to guarantee that back shaft 10 can slowly run, and the power resources of this pivot are by manual adjustment handwheel 11, turbine and worm is meshing with each other, and passes to this back shaft 10.
See shown in Figure 5ly, bistrique rear support 4 puts together on the opposite side of bistrique upper bracket 1 equally by 8 powerful screws, three passages are arranged in the bistrique rear support 4, and the respective channel with bistrique upper bracket 1 is tightly connected respectively.Wherein, electric main shaft cooling-water duct 17 water inlet 7 that is corresponding upper bracket 1; The delivery port 8 of electricity main shaft cooling-water duct 18 corresponding upper brackets 1; The cooling liquid inlet 9 of the outer cooling passage 19 corresponding upper brackets 1 of emery wheel brute force.A distribution oil ring 20 made of copper is installed between back shaft 16 and the bistrique rear support 4, the effect of this distribution oil ring has two, the one, with cooling fluid and its needed place of recirculated cooling water dispensing of 1 three passages of bistrique upper bracket, the 2nd, play the supporting role of bearing equally.Ring flange on the back shaft 16 closes with 2 on bistrique electricity main shaft equally and is connected, with the back shaft 10 common pendulum angle pivots of forming grinding electricity main shafts 2.
A cable quick change plug 6 is also installed in bistrique upper bracket shown in Figure 41 top, is connecting the power cable of electric main shaft bistrique below, and when needs were used this universal grinding device, the ram end face was given grinding electricity main shaft 2 by this cable quick change plug 6 with transmission of power.Meanwhile, the ram inner passage that connects by hydraulic quick coupler 7,8,9 is water inlet, the delivery port of electric main shaft cooling water, and the outer cooling fluid of needed brute force passes to this universal grinding device during grinding.
After adjusting to the required angle of emery wheel by handwheel, one, the powerful auto-lock function by turbine and worm guarantees its locking, its two, retaining mechanism is arranged with the powerful locking of handwheel.See Fig. 5,6, bistrique rear support 4 is equipped with a locking support plate 21, and locking support plate 21 endoporus are put left back shaft 16, along each two latch segment of radius symmetric arrangement, respectively has a location screw 24 to prevent latch segment 23, latch segment 24 stressed rotations down.Opposite side all has circle to lack, and last latch segment 23 and following latch segment 22 are strained up and down by screw 25, and latch segment is held tightly by the external diameter that circle lacks cambered surface and back shaft 16 up and down, realizes the locking to back shaft 16.When needs are adjusted the abrasive grinding wheel angle, unclamp lock-screw 25 earlier, again by the handwheel rotation direction.Horizontal dotted line part in electric main shaft both sides promptly is the schematic diagram of dynamic transposition among Fig. 1.
The control circuit principle, see Fig. 7:
Bistrique drives " analog main shaft " function that adopts SIEMENS 840D digital control system, and analog main shaft is exactly a digital control system output analog voltage signal, and the back level adopts common AC converter and alternating-current variable frequency motor to realize main shaft control.The frequency converter and the motor circuit of PLC control: external power source 380V line inserts power supply terminal R, S, the T of frequency converter T1 through circuit breaker Q 1, coil by PLC output module A2.3 control relay K1, the terminal SC/FW of frequency converter T1 will be inserted, by the startup of the break-make of relay K 1 control frequency converter T1, stop the battle of K1; Grinding head motor M01 rotary speed instruction is by PLC analog output module A2.4 control, change into 0V～± the 10V aanalogvoltage, export the analog quantity input interface FV/FC of frequency converter to, change the frequency converter output frequency, thereby the output U/V/W of control frequency converter changes grinding head motor M01 frequency, to realize the control of bistrique different rotating speeds; In the last access of frequency converter terminals P/N braking resistor R1 unit, reduce the skidding time of bistrique; Frequency converter terminal MB/MC is the frequency converter failure alarm signal, frequency converter terminals P 5/PC is a frequency converter speed arriving signal, A2.1/A2.2 feeds back to digital control system by the PLC input module, so that the running status of grinding head motor M01 is understood by system, thereby other action is controlled.It is intrinsic that label among Fig. 7 in each electric elements is each electric elements itself, as: the R/S/T of frequency converter T1,11/12,13/14,1/5/9,13/14 of relay K 1 please connects by the contact label of electric elements during the wiring of the grade of 1/2/3/20/5/4 on the analog output module.
The effect of PLC input module A2.1 is when frequency converter breaks down, and exports PLC to, carries out routine processes; PLC input module A2.2 when the frequency converter output frequency arrives command speed, exports PLC to, carries out routine processes; PLC output module A2.3, the control bistrique starts/stops; PLC analog output module A2.4 exports positive and negative 0-10V voltage to frequency converter, changes the frequency converter output frequency, thereby realizes control grinding head motor rotating speed.
The operation of analog main shaft and digital main shaft are identical, can manual mode start bistrique, and speed is equipped with the rate switch by the main shaft on the push-button station and regulates.Also can in procedure, set,, send positive and negative 0-10V voltage and export frequency converter to, change the frequency converter output frequency, thereby change electric machine frequency, promptly realize the control of bistrique friction speed by PLC control.Automatically add man-hour, for cooperating the different feed speeds of axis servomotor, bistrique is operated in different rotating speeds in different procedure sections, can realize conveniently that the bistrique rotating speed regulates (xxx be appointment bistrique rotating speed) here automatically as long as enroll the statement of S xxxM3/M4.
Bistrique rotating speed, direction of rotation and PLC analog output voltage corresponding relation:
The corresponding output of bistrique maximum speed 10V voltage; The corresponding output of bistrique zero-speed 0V voltage.
Bistrique be rotated in the forward corresponding output 0V～+ the 10V aanalogvoltage; The corresponding output of bistrique negative sense rotation 0V～-the 10V aanalogvoltage;
The PLC program is as follows:
Network1 frequency converter start-up control
AN DB39.DBX 64.6 // bistrique negative sense rotate instruction
AN DB39.DBX 64.7 // bistrique is rotated in the forward instruction
=M 204.5 // frequency converter stops
AN M 204.5
=Q 0.0 // frequency converter starts (relay K 1)
A Q 0.0
AN I 0.0 // speed arriving signal
=DB21.DBX 6.1 // bistrique speed no show command request is forbidden
Program continues to carry out
Variable signal is read in the Network2 startup
AN M 204.0
AN M 204.5
AN DB39.DBX 4.3 // bistrique stops feedback signal
S M 204.0
A M 204.1
0 M 204.2
0 DB39.DBX?4.3
R M 204.0 // begin to read bistrique speed variable
Network3 reads bistrique speed variable
CALL FB 2, DB102 // read NC variable
Req :=M204.0 // begin to read variable
.
.
Addr1:=P#DB120.DBX 0.0BYTE 10 // read motor given rotating speed
.
.
Addr2:=P#DB120.DBX 10.0BYTE 10 // read main shaft multiplying power
.
.
Addr3:=P#DB120.DBX 20.0BYTE 10 // read motor maximum speed
.
.
Error :=M204.1 // read and make mistakes
NDR :=M204.2 // read and finish
State ：＝MW210
RD1 :=P#M 206.0 DWORD 1 // motor given rotating speed is composed to MD206
RD2 :=P#M 214.0 DWORD 1 // main shaft multiplying power is composed to MD214
RD3 :=P#M 240.0 DWORD 1 // motor maximum speed is composed to MD240
.
.
The control of Network4 aanalogvoltage
L MD 206
ABS
L MD 240
＜R
JC M105 // redirect label M105
A DB39.DBX 64.6
JCN M108 // redirect label M108
L MD 240
NEGR
T MD 206 // motor given rotating speed
JU M107 // redirect label M107
M108:L MD 240 // motor maximum speed
T MD 206
M107：L MD 206
L MD 214 // main shaft multiplying power
*R
T MD 218 // main shaft calculates rotating speed
L MD 218
L 1.232000e-001
*R
T MD 222 // main shaft calculates aanalogvoltage
M105：L MD 222
TRUNC
T PQW 432 // output 0V～± 10V
The Network5 frequency converter failure
A I 0.0 // frequency converter failure
=DB2.DBX 180.0 // frequency converter failure is reported to the police
By carrying out bistrique rotate instruction M03Sxxx: or M04Sxxx: the time NCK → PLC signal DB39.DBX64.6/DB39.DBX64.7, control the startup Q0.0 (relay K 1) of frequency converter.At this moment, system variable read functions piece FB2 by PLC, see above-mentioned Network3, read the NC variable, maximum speed, given rotating speed, the main shaft multiplying power of bistrique are read in motor M D240, MD206, MD214 respectively, and by the control program corresponding judgment, after the given speed of bistrique and multiplying power are multiplied each other, send into PQW432 (PLC output module A2.3), convert to 0V～± analog quantity of 10V control frequency converter.
The operation of bistrique rotate instruction:
Automatically add man-hour, establishment bistrique rotate instruction in procedure, instruction format is as follows:
M03 Sxxx: bistrique is rotated in the forward.(xxx: the bistrique rotating speed of appointment)
M04 Sxxx: bistrique negative sense rotation.(xxx: the bistrique rotating speed of appointment)
For cooperating the different feed speeds of axis servomotor, bistrique is operated in different rotating speeds in different procedure sections, as long as can realize conveniently that by as above working out statement the bistrique rotating speed regulates automatically.
Claims (9)
1. the omnipotent grinding head device of vertical turning milling center adopts the digital control system analog main shaft to drive bistrique, it is characterized in that end-toothed disc engagement location under bistrique upper bracket (1) top installation fluted disc (5) and the ram, and by blind rivet both is strained; Bistrique upper bracket (1) two symmetrical limit has preceding bearing (3) of bistrique and bistrique rear support (4) to constitute doorframe structure respectively, bearing (3) and bistrique rear support (4) lower end are respectively by the installation that intersects vertically of the left back shaft (16) of level, right back shaft (10) and the electric main shaft of bistrique (2) that is erected in the doorframe structure below, the axle head installation emery wheel bistrique (24) of the electric main shaft of bistrique (2) before the bistrique; Described analog main shaft is exactly a digital control system output analog voltage signal, and the back level adopts common AC converter and alternating-current variable frequency motor to realize main shaft control.
2. the omnipotent grinding head device of vertical turning milling center according to claim 1, there are turbine (12), worm screw (13) in bearing (3) bottom and replace the copper sheathing (15) of bearing that back shaft (10) is installed before it is characterized in that bistrique, the axle front end of worm screw (13) is installed handwheel (11), be used to adjust angle back shaft (10) the tail end installation dial (14) of abrasive grinding wheel, manually adjust angle the emery wheel bistrique is rotated in this 180 degree scope.
3. the omnipotent grinding head device of vertical turning milling center according to claim 1, it is characterized in that three passages are arranged in the bistrique rear support (4), respective channel with bistrique upper bracket (1) is tightly connected respectively: wherein, electric main shaft cooling-water duct (17) is the water inlet (7) of corresponding upper bracket (1), the delivery port (8) of the corresponding upper bracket of electric main shaft cooling-water duct (18) (1), the cooling liquid inlet (9) of the outer corresponding upper bracket of cooling passage (19) (1) of emery wheel brute force; A cable quick change plug (6) is also installed in bistrique upper bracket (1) top, is connecting the power cable of electric main shaft bistrique below.
4. the omnipotent grinding head device of vertical turning milling center according to claim 1, it is characterized in that ring flange on the back shaft (16) is same is connected closing with bistrique electricity main shaft (2), forms the pendulum angle pivot of the electric main shaft of grinding (2) jointly with back shaft (10); Between back shaft (16) and the bistrique rear support (4) distribution oil ring made of copper (20) is installed, the effect of this distribution oil ring is the supporting role that distributes cooling fluid and recirculated cooling water and bearing.
5. the omnipotent grinding head device of vertical turning milling center according to claim 1, it is characterized in that bistrique rear support (4) is equipped with a locking support plate (21), locking support plate (21) endoporus is put left back shaft (16), along each two latch segment of radius symmetric arrangement, respectively there is a location screw (24) to prevent latch segment (23), the stressed rotation of latch segment (24) down; Opposite side all has circle to lack, and last latch segment (23) and following latch segment (22) are strained up and down by screw (25), and latch segment is held tightly by the external diameter that circle lacks cambered surface and back shaft (16) up and down, realizes the locking to back shaft (16).
6. the omnipotent grinding head device of vertical turning milling center according to claim 1, the frequency converter and the motor circuit that it is characterized in that PLC control: external power source 380V line inserts the power supply terminal (R, S, T) of frequency converter (T1) through breaker (Q1), coil by PLC output module (A2.3) control relay (K1), with the terminal that inserts frequency converter (T1) battle (SC/FW) of relay (K1), by the startup of the break-make of relay (K1) control frequency converter (T1) and grinding head motor, stop; Grinding head motor (M01) rotary speed instruction is by PLC analog output module (A2.4) control, change into 0V～± the 10V aanalogvoltage, export the analog quantity input interface (FV/FC) of frequency converter to, change the frequency converter output frequency, thereby the output (U/V/W) of control frequency converter changes electric machine frequency, to realize the control of bistrique different rotating speeds; Go up access braking resistor unit at frequency converter terminal (P/N), reduce the skidding time of bistrique; Frequency converter terminal (MB/MC) is the frequency converter failure alarm signal, frequency converter terminal (P5/PC) is a frequency converter speed arriving signal, (A2.1/A2.2) feeds back to digital control system by the PLC input module, so that the running status of bistrique is understood by system, thereby other action controlled.
7. the omnipotent grinding head device of vertical turning milling center according to claim 6 is characterized in that bistrique rotating speed, direction of rotation are corresponding relation with the PLC analog output voltage: the corresponding output of bistrique maximum speed 10V voltage, the corresponding output of bistrique zero-speed 0V voltage; Bistrique be rotated in the forward corresponding output 0V～+ the 10V aanalogvoltage, the corresponding output of bistrique negative sense rotation 0V～-the 10V aanalogvoltage; Output module connects the 24V direct current.
8. the omnipotent grinding head device of vertical turning milling center according to claim 6, signal DB39.DBX64.6 or the DB39.DBX64.7 of NCK → PLC when it is characterized in that the PLC program by execution bistrique rotate instruction M03 or M04 Sxxx, the Q0.0 that controls frequency converter starts relay (K1); At this moment, functional block (FB2) by PLC is read NC variable among the Network3, maximum speed, given rotating speed, the main shaft multiplying power of bistrique are read in motor (MD240, MD206, MD214) respectively, and by the control program corresponding judgment, after the given speed Sxxx of bistrique and multiplying power multiplied each other, send into PLC output module A2.3 (PQW432), convert to 0V～± analog quantity of 10V control frequency converter.
9. the omnipotent grinding head device of vertical turning milling center according to claim 1, it is characterized in that the operation of analog main shaft is compiled into identical digital main shaft, both can manual mode start bistrique, electric spindle speed is equipped with the rate switch by the main shaft on the push-button station to be regulated; Also can in processing job procedure, set: in order to cooperate the different feed speeds of axis servomotor, enroll the statement of S bistrique rotating speed xxx M3/M4 in different procedure sections, make bistrique be operated in different rotating speeds, realize adding automatically man-hour bistrique rotating speed and regulate automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100507830A CN102172889A (en) | 2011-03-03 | 2011-03-03 | Universal grinding head device for vertical turning center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100507830A CN102172889A (en) | 2011-03-03 | 2011-03-03 | Universal grinding head device for vertical turning center |
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| CN102172889A true CN102172889A (en) | 2011-09-07 |
Family
ID=44516232
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|---|---|---|---|
| CN2011100507830A Pending CN102172889A (en) | 2011-03-03 | 2011-03-03 | Universal grinding head device for vertical turning center |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962766A (en) * | 2012-12-03 | 2013-03-13 | 东南大学 | Super-speed precision motorized spindle structure for grinding small-diameter deep hole |
| CN103488109A (en) * | 2013-09-18 | 2014-01-01 | 大连大森数控技术发展中心有限公司 | Device and method for achieving spindle orientation by using analog frequency converter |
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| CN201227774Y (en) * | 2007-12-29 | 2009-04-29 | 浙江工业大学 | Grinding head actuating device of mould free surface flexible polisher |
| CN101590623A (en) * | 2009-06-12 | 2009-12-02 | 杭州机床集团有限公司 | Movable beam type NC grinding machine |
| CN101859132A (en) * | 2010-06-03 | 2010-10-13 | 南京数控机床有限公司 | Analog main shaft control device for numerically controlled lathe and control method thereof |
| CN202010939U (en) * | 2011-03-03 | 2011-10-19 | 沈阳机床股份有限公司 | Universal grinding head device used for vertical turning and milling center |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH05329762A (en) * | 1992-05-26 | 1993-12-14 | Canon Inc | Method and device for polishing curved surface |
| CN2416998Y (en) * | 2000-04-07 | 2001-01-31 | 柏阳精密机械股份有限公司 | Complete set of spindle and basic frame of angle adjustable grinding machine |
| CN201227774Y (en) * | 2007-12-29 | 2009-04-29 | 浙江工业大学 | Grinding head actuating device of mould free surface flexible polisher |
| CN101590623A (en) * | 2009-06-12 | 2009-12-02 | 杭州机床集团有限公司 | Movable beam type NC grinding machine |
| CN101859132A (en) * | 2010-06-03 | 2010-10-13 | 南京数控机床有限公司 | Analog main shaft control device for numerically controlled lathe and control method thereof |
| CN202010939U (en) * | 2011-03-03 | 2011-10-19 | 沈阳机床股份有限公司 | Universal grinding head device used for vertical turning and milling center |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962766A (en) * | 2012-12-03 | 2013-03-13 | 东南大学 | Super-speed precision motorized spindle structure for grinding small-diameter deep hole |
| CN103488109A (en) * | 2013-09-18 | 2014-01-01 | 大连大森数控技术发展中心有限公司 | Device and method for achieving spindle orientation by using analog frequency converter |
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Application publication date: 20110907 |