CN107570732B - Numerical control machine tool system with automatic workpiece taking function - Google Patents
Numerical control machine tool system with automatic workpiece taking function Download PDFInfo
- Publication number
- CN107570732B CN107570732B CN201710906259.6A CN201710906259A CN107570732B CN 107570732 B CN107570732 B CN 107570732B CN 201710906259 A CN201710906259 A CN 201710906259A CN 107570732 B CN107570732 B CN 107570732B
- Authority
- CN
- China
- Prior art keywords
- bearing
- oil
- main shaft
- ring
- deep groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 102
- 239000003921 oil Substances 0.000 claims description 113
- 239000010687 lubricating oil Substances 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000005461 lubrication Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229920000459 Nitrile rubber Polymers 0.000 claims description 8
- 210000000078 claw Anatomy 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 23
- 238000001816 cooling Methods 0.000 abstract description 11
- 238000005299 abrasion Methods 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- FLKPEMZONWLCSK-UHFFFAOYSA-N diethyl phthalate Chemical compound CCOC(=O)C1=CC=CC=C1C(=O)OCC FLKPEMZONWLCSK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- ZFMQKOWCDKKBIF-UHFFFAOYSA-N bis(3,5-difluorophenyl)phosphane Chemical compound FC1=CC(F)=CC(PC=2C=C(F)C=C(F)C=2)=C1 ZFMQKOWCDKKBIF-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- MIMDHDXOBDPUQW-UHFFFAOYSA-N dioctyl decanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCC(=O)OCCCCCCCC MIMDHDXOBDPUQW-UHFFFAOYSA-N 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical group [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- YWFWDNVOPHGWMX-UHFFFAOYSA-N n,n-dimethyldodecan-1-amine Chemical compound CCCCCCCCCCCCN(C)C YWFWDNVOPHGWMX-UHFFFAOYSA-N 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
Abstract
The invention discloses a numerical control machine tool system with an automatic workpiece taking function, which comprises a machine body, a spindle box system and an automatic workpiece taking system, wherein the spindle box system comprises a spindle, a bearing sealing system, a bearing pre-tightening gap eliminating device and a bearing lubricating system. The automatic workpiece taking system can automatically take the machined workpiece off the chuck and transfer the workpiece to the outside of the machine tool, the workpiece taking time is short, and the production efficiency of the machine tool can be improved. The bearing sealing system of the spindle box system can play a role in dust prevention and pollution prevention protection of the bearing, can play a role in cooling and cooling the bearing inner ring and the spindle, can improve the rigidity of the spindle and the bearing inner ring, and can keep the rotation precision of the spindle. The bearing pre-tightening gap eliminating device can automatically eliminate gaps generated by bearing abrasion, so that the rigidity of the first deep groove ball bearing and the second deep groove ball bearing is greatly enhanced, the rigidity of a main shaft system can be greatly improved, and the main shaft rotation precision and the machine tool machining precision are improved.
Description
Technical Field
The invention relates to the technical field of machine tools, in particular to a spindle box of a numerical control machine tool.
Background
The headstock is an important component of a machine tool, and includes a case, a spindle unit, and the like. The spindle unit is generally composed of a spindle, a bearing, a transmission member (gear or pulley), and the like. The main shaft is mainly used for supporting transmission parts such as gears and belt wheels, transmitting motion and torque, driving a workpiece or a cutter to rotate and the like in a machine tool, is used as a numerical control machine tool for high-precision machining, and has high quality requirements on main shaft parts.
In the machining process of the machine tool, the radial stress of the main shaft is large, and the axial stress is relatively small, so the radial bearing for supporting the main shaft is very critical in stress capability. In the prior art, a deep groove ball bearing is often used for supporting a main shaft, and the factors of the reduction of the machining precision caused by the bearing mainly include:
1. gaps exist between the inner ring and the outer ring of the bearing and the steel balls, so that when the main shaft is subjected to radial force, the center of the main shaft can deviate, and the machining precision is reduced.
2. The bearing is worn, so that the bearing clearance is increased, and the machining precision is reduced.
3. The bearing moves at a high speed, the temperature rises, the rigidity of the bearing is reduced, and the machining precision is affected.
The rigidity of the spindle is also an important factor affecting the machining accuracy of the machine tool. During machining, a large amount of heat is generated when metal is cut, the cutting heat is partly taken away by cooling liquid, and the part of the cutting heat is transferred to the main shaft, so that the temperature of the main shaft is increased, the rigidity of the main shaft is reduced, and the machining precision is also affected.
Meanwhile, the existing numerical control machine tool is not provided with an automatic workpiece taking device, when machining is completed, workpieces need to be manually taken down from the chuck, and the manual workpiece taking time is relatively long, so that the production efficiency is relatively low.
Disclosure of Invention
In view of the above, the present invention aims to provide a numerically controlled machine tool system with an automatic workpiece taking function, so as to solve the technical problems that the existing numerically controlled machine tool does not have an automatic workpiece taking function, the manual workpiece taking time is long, the production efficiency is reduced, and the machining precision of the machine tool is reduced due to bearing clearance, bearing abrasion, bearing and main shaft temperature rise, etc.
The invention discloses a numerical control machine tool system with an automatic workpiece taking function, which comprises a machine body and a spindle box system arranged on the machine body, wherein the spindle box system comprises a box body and a spindle, and the spindle is a hollow shaft; the front end of the main shaft is arranged on the bearing seat on the inner side of the box body through two deep groove ball bearings, a first deep groove ball bearing in the two deep groove ball bearings is close to the middle of the box body, and a second deep groove ball bearing is close to the outer side of the box body; the rear end of the main shaft is mounted on the box body through an angular contact bearing, and a main shaft end cover for fixing the angular contact bearing is further arranged on the box body;
the machine tool system further comprises an automatic workpiece taking system, the automatic workpiece taking system comprises a stand column arranged on one side of the machine tool, a linear motor horizontally fixed at the upper end of the stand column, an air cylinder vertically fixed on a slide seat of the linear motor, and a workpiece placing frame fixed on the end part of a piston rod of the air cylinder, the linear motor is parallel to the main shaft, and the piston rod of the air cylinder is perpendicular to the main shaft;
the end part of the main shaft is connected with a chuck for clamping a workpiece, the chuck comprises a chuck body fixed at the front end of the main shaft, a claw arranged on the chuck body and a driving disk arranged in the chuck body and rotationally matched with the chuck body, the chuck body is provided with a guide groove extending along the radial direction, the claw is arranged in the guide groove and is in sliding fit with the guide groove, and the driving disk is in threaded connection with the end surface of the claw through which the claw passes;
the automatic workpiece taking system further comprises an electric cylinder arranged in the main shaft, a chuck motor fixed on the end face of the main shaft, a mandrel fixedly connected with a rotor shaft of the chuck motor and a rotary electric joint arranged on an end cover of the main shaft, one end of a shell of the electric cylinder is fixedly connected with the end part of the mandrel, the other end of the shell of the electric cylinder is fixed on the end face of the driving disc, a telescopic rod of the electric cylinder extends out of the driving disc, and the end part of the telescopic rod of the electric cylinder is connected with a workpiece pushing plate; the power lines of the chuck motor and the electric cylinder are connected with the rotary electric joint;
the main shaft box system further comprises a bearing sealing system, the bearing sealing system comprises a bearing cover connected to the end face of the bearing seat through a bolt, an annular boss pressed on the first deep groove ball bearing is arranged on the bearing cover, the middle part of the bearing cover is provided with a shaft sleeve part matched with the main shaft, a first sealing ring used for sealing a gap between the shaft sleeve and the main shaft is arranged in the shaft sleeve, and a first end cover used for preventing the first sealing ring from falling off is arranged on the end face of the shaft sleeve; a second sealing ring is arranged on the wall of the shaft hole, matched with the front end of the main shaft, of the box body, the second sealing ring is used for sealing a gap between the front end of the main shaft and the shaft hole on the box body, and a second end cover for fixing the second sealing ring is arranged on the end face of the box body; a third sealing ring is arranged on the box body at a position opposite to the inner ring of the second deep groove ball bearing, and is used for sealing a gap between the box body and the end surface of the third bearing; the first sealing ring, the second sealing ring and the third sealing ring are V-shaped sealing rings;
the bearing sealing system further comprises an air pressure sealing system, the air pressure sealing system comprises an air compressor, an air purifier connected with the air compressor, an air dryer connected with the air purifier, a gas pressure stabilizing tank connected with the air dryer, a first pressure regulating valve connected with the gas pressure stabilizing tank, and an air inlet joint connected with the first pressure regulating valve, the air inlet joint comprises an annular pipe, an air inlet nozzle arranged on the annular pipe and communicated with the first pressure regulating valve, and a plurality of air outlet nozzles uniformly arranged on the annular pipe, the air outlet nozzles are arranged on the bearing cover, and the air outlet nozzles are opposite to the end face of the inner ring of the first deep groove ball bearing; the main shaft is provided with a first annular air guide groove and a second annular air guide groove, the first annular air guide groove is close to a gap between the end face of the first bearing and the bearing cover, and the second annular air guide groove is close to a gap between the end face of the second bearing and the box body; the surface of the main shaft is also provided with axial air guide grooves which are communicated with the first annular air guide groove and the second annular air guide groove, and a plurality of axial air guide grooves are uniformly distributed along the circumferential direction of the main shaft;
the numerical control machine tool system with the automatic workpiece taking function further comprises a bearing pre-tightening gap eliminating device, wherein the bearing pre-tightening gap eliminating device comprises a spacing ring arranged between the first deep groove ball bearing and the second deep groove ball bearing, and two side surfaces of the spacing ring are respectively attached to the outer ring end surfaces of the first deep groove ball bearing and the second deep groove ball bearing; the bearing pre-tightening gap eliminating device further comprises a left permanent magnet ring body and a right permanent magnet ring body which are respectively arranged on the end faces of the inner rings of the first deep groove ball bearing and the second deep groove ball bearing, the opposite faces of the left permanent magnet ring body and the right permanent magnet ring body are homonymous magnetic poles, and the opposite parts of the left permanent magnet ring body and the right permanent magnet ring body are also embedded in the same elastic sealing ring sleeve; the inner rings of the first deep groove ball bearing and the second deep groove ball bearing are pressed against the steel balls under the repulsive force of the left permanent magnet ring body and the right permanent magnet ring body, so that the outer rings of the deep groove ball bearings, the steel balls and the inner rings are in direct contact;
the numerical control machine tool system with the automatic workpiece taking function further comprises a bearing lubrication system, wherein the bearing lubrication system comprises an oil tank, an oil filter, an oil pump, a cooler, a second pressure regulating valve, an oil inlet nozzle and an oil outlet nozzle, an oil inlet of the oil filter is connected with the oil tank, an oil outlet of the oil filter is connected with an oil inlet end of the oil pump, an oil outlet end of the oil pump is connected with an oil inlet of the cooler, an oil outlet of the cooler is connected with the second pressure regulating valve, the oil inlet nozzle is arranged on the top of a bearing seat, the oil inlet nozzle is used for conveying lubricating oil into the bearing, the oil outlet nozzle is arranged on the bottom of the bearing seat, and the oil outlet nozzle is used for connecting the lubricating oil back to the oil tank; the upper half part and the lower half part of the partition ring are respectively provided with an upper arc-shaped oil groove and a lower arc-shaped oil groove which are mutually separated, the partition ring is also provided with an oil hole penetrating through the partition ring along the radial direction, the upper end and the lower end of the oil hole are respectively positioned in the upper arc-shaped oil groove and the lower arc-shaped oil groove, the bearing seat is provided with an oil inlet channel communicated with the upper arc-shaped oil groove and an oil outlet channel communicated with the lower arc-shaped oil groove, the oil inlet nozzle is arranged on the oil inlet channel, and the oil outlet nozzle is arranged on the oil outlet channel.
Further, the elastic sealing ring sleeve is made of nitrile rubber.
The invention has the beneficial effects that:
1. according to the numerical control machine tool system with the automatic workpiece taking function, the automatic workpiece taking system can automatically take a machined workpiece off a chuck and transfer the machined workpiece to the outside of the machine tool, the workpiece taking time is short, and the production efficiency of the machine tool can be improved.
2. According to the numerical control machine tool system with the automatic workpiece taking function, the arranged bearing sealing system can introduce compressed air into a gap between the shaft sleeve and the main shaft and a gap between the front end of the main shaft and the shaft hole on the box body, when the machine tool works, the pressure of the compressed air pushes the sealing lips of the first sealing ring and the second sealing ring away from the main shaft, and meanwhile, the sealing lip of the third sealing ring pushes the end face of the second deep groove ball bearing, so that the friction resistance of the main shaft is reduced, and the service life of the sealing ring can be prolonged. The compressed air can also prevent external pollutants such as dust, water vapor and the like from entering the bearing; when the machine tool is stopped, the sealing lip of the sealing ring is elastically pressed on the main shaft, so that dust, cooling water and the like can be prevented from entering the bearing under static state; therefore, the bearing sealing system can have good protection effect on the friction pair in the bearing, and can prolong the service life of the bearing.
In addition, the compressed air can take away the heat transferred to the spindle during the cutting process from the axial air guide groove on the spindle to the gap between the front end of the spindle and the shaft hole on the box body, so that the spindle can be cooled, the rigidity of the spindle is maintained, and the machining precision of the machine tool is maintained. In addition, in the prior art, lubricating oil is usually led into the bearing for cooling the bearing, and the cooling mode can not prevent heat on the main shaft from being transferred to the bearing inner ring, so that the temperature of the bearing inner ring is greatly influenced by the main shaft, and when the temperature of the bearing inner ring is increased, the rigidity of the bearing inner ring is reduced, which leads to the reduction of the rigidity of a main shaft system, and further reduces the machining precision. The compressed air generated in the bearing sealing system can take away the heat transferred to the spindle by cutting, so that the heat transferred to the inner ring of the spindle box bearing can be reduced, and meanwhile, the heat generated by rotation of the bearing can be partly taken away by the compressed air, so that the bearing sealing system can play a role in dust prevention and pollution prevention protection on the bearing, can play a role in cooling the inner ring of the bearing and the spindle, can improve the rigidity of the spindle and the inner ring of the bearing, and can keep the rotation precision of the spindle.
3. According to the numerical control machine tool system with the automatic workpiece taking function, the bearing pre-tightening gap eliminating device is arranged, after the first deep groove ball bearing and the second deep groove ball bearing are installed, the inner rings of the first deep groove ball bearing and the second deep groove ball bearing are abutted against the steel balls under the repulsive force action of the left permanent magnet ring body and the right permanent magnet ring body, so that the outer ring of the bearing, the steel balls and the inner rings of the bearing are in gapless contact, the gaps generated by bearing abrasion can be automatically eliminated by repulsive force exerted by the permanent magnet ring body, the rigidity of the first deep groove ball bearing and the second deep groove ball bearing is greatly improved, the rigidity of a main shaft system can be greatly improved, and the rotation precision of the main shaft and the machining precision of a machine tool are improved.
4. According to the numerical control machine tool system with the automatic workpiece taking function, the arranged bearing lubrication system introduces lubricating oil into the bearing, and the lubricating oil can only flow from the upper half part of the bearing to the lower half part of the bearing through the upper arc-shaped oil groove, the lower arc-shaped oil groove and the oil hole structure on the partition ring and the elastic sealing ring sleeve structure for connecting the left magnetic ring body and the right permanent magnetic ring body, so that the bearing can be well lubricated and cooled, the friction and the abrasion of the bearing can be reduced, the temperature of the bearing can be reduced, and the bearing can keep good performance for a long time; and the oil filter in the bearing lubrication system can prevent the lubricating oil from bringing impurities into the bearing, and the cooler can keep the temperature of the lubricating oil stable, so that the lubrication and cooling of the lubricating oil in the bearing can be further improved, the bearing can be kept in a good state, and the machining precision of a machine tool system can be further maintained.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a numerical control machine tool system with an automatic pick-up function in an embodiment;
FIG. 2 is a schematic diagram of a headstock system according to an embodiment;
FIG. 3 is an enlarged schematic view of the portion P of FIG. 2;
FIG. 4 is a schematic diagram of a pneumatic seal system;
FIG. 5 is a schematic structural view of a bearing lubrication system;
FIG. 6 is a schematic view of the spacer ring.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in the figure, the numerical control machine tool system with the automatic workpiece taking function of the embodiment comprises a machine body 40 and a spindle box system arranged on the machine body, wherein the spindle box system comprises a box body 1 and a spindle 2, and the spindle is a hollow shaft; the front end of the main shaft is mounted on the bearing seat on the inner side of the box body through two deep groove ball bearings, a first deep groove ball bearing 4 of the two deep groove ball bearings is close to the middle of the box body, and a second deep groove ball bearing 5 is close to the outer side of the box body; the rear end of the main shaft is mounted on a box body through an angular contact bearing 6, and a main shaft end cover 41 for fixing the angular contact bearing is further arranged on the box body.
The machine tool system further comprises an automatic workpiece taking system, the automatic workpiece taking system comprises a stand column 42 arranged on one side of the machine tool, a linear motor 43 horizontally fixed at the upper end of the stand column, a cylinder 44 vertically fixed on a slide seat of the linear motor, and a workpiece placing frame 45 fixed on the end part of a piston rod of the cylinder, the linear motor is parallel to the main shaft, and the piston rod of the cylinder is perpendicular to the main shaft.
The end connection of main shaft has the chuck that is used for clamping the work piece, the chuck includes the chuck body 46 of fixing at the main shaft front end, sets up the jack catch 47 on the chuck body and sets up in the chuck body and with chuck body swivelling joint's driving disk 48, be provided with the guide way that extends along radial on the chuck body, the jack catch sets up in the guide way and with guide way sliding fit, the terminal surface threaded connection that driving disk and jack catch passed through.
The automatic picking system further comprises an electric cylinder 49 arranged in the main shaft, a chuck motor 50 fixed on the end face of the main shaft, a mandrel 51 fixedly connected with a rotor shaft of the chuck motor, and a rotary electric joint 52 arranged on an end cover of the main shaft, wherein one end of a shell of the electric cylinder is fixedly connected with the end part of the mandrel, the other end of the shell of the electric cylinder is fixed on the end face of the driving disc, a telescopic rod of the electric cylinder extends out of the driving disc, and the end part of the telescopic rod of the electric cylinder is connected with a pushing plate 53; the power lines of the chuck motor and the electric cylinder are connected with the rotary electric joint. In this embodiment, the chuck motor 50 is a stepper motor, the rotary electric connector 52 is a mercury ring with a model number of A1H90PS, and of course, the type and model number of the electric connector are more, and the electric connector can be selected according to actual needs.
The working process of the automatic pickup system in this embodiment is as follows:
1) When the machine tool finishes one-time machining, the main shaft is braked, and the protective door of the machine tool is opened;
2) The linear motor 43 moves the air cylinder 44 to the upper part of the chuck, and the air cylinder 44 lowers the workpiece placing frame 45 to the opposite position of the chuck;
3) The chuck motor 50 drives the driving disc to rotate, and the driving disc rotates to push the clamping jaw to move so as to loosen the workpiece;
4) The piston rod of the electric cylinder 49 extends to push the workpiece into the workpiece placement frame 45;
5) The cylinder 44 lifts the workpiece placement frame 45 out of the machine tool machining area, and the linear motor 43 moves the cylinder to the workpiece placement area on the side of the machine tool.
After the cylinder 44 lifts the workpiece placement frame 45 out of the machine tool processing area, the worker can perform the loading operation of the next workpiece. Because the picking up is finished automatically, the picking up speed is high, and the processing efficiency can be improved. At the same time, during the next workpiece processing, the worker can take the workpiece in the workpiece placement frame 45 down onto the turret 54 so as to prepare the automatic workpiece taking system for the next operation.
According to the numerical control machine tool system with the automatic workpiece taking function, when the rotation angle of the main shaft needs to be controlled to achieve accurate indexing of the main shaft, the driving cylinder is controlled firstly, the stepping motor is pushed upwards through the driving cylinder, the driving friction wheel connected with the rotating shaft of the stepping motor is enabled to rise to be in tight contact with the driven friction wheel, then the operation of the stepping motor is controlled to achieve control of the rotation angle of the main shaft, accurate indexing is achieved, after the main shaft rotates to a required angle, the main shaft is locked through the magnetic powder brake, and machining operation can be conducted on a workpiece on the main shaft. When the indexing is not needed, the piston rod of the driving cylinder is retracted, the driving friction wheel is separated from the driven friction wheel, and the indexing device does not influence the working of the main shaft. The working processes of the driving cylinder, the stepping motor and the magnetic powder brake in the main shaft indexing device are controlled by a PLC (programmable logic controller) on the machine tool, the indexing operation is automatically completed, and the indexing operation is simple; meanwhile, the stepping motor has high working precision, can realize accurate indexing, and has simple structure and low cost.
Of course, in the specific implementation, the stepper motor of the spindle indexing device in this embodiment may also be replaced by an angle sensor. In the indexing process, after the driving friction wheel is pushed by the driving cylinder to be in pressing contact with the driven friction wheel, the main shaft is manually rotated, and as the ratio of the rotation angle of the rotating shaft of the angle sensor to the rotation angle of the main shaft is equal to the ratio of the radius of the driven friction wheel to the radius of the driving friction wheel, the detection result of the angle sensor is multiplied by the ratio of the radius of the driven friction wheel to the radius of the driving friction wheel, so that the rotation angle of the main shaft can be obtained, the detection precision of the angle sensor is high, and the accurate indexing can be realized.
The numerical control machine tool system with the automatic workpiece taking function further comprises a main shaft brake, wherein the main shaft brake comprises a brake ring 40 fixed on a main shaft through screws, and the brake ring is close to the angular contact bearing. The brake further comprises a driving cylinder 41 fixed on the inner wall of the box body and a compression ring 42 fixed on a piston rod of the driving cylinder, and the driving cylinder in the embodiment is a cylinder. The number of the driving cylinders is three, four, or the like, and the number of the driving cylinders is more than two. The pressing ring consists of an embedded ring 421 made of elastic material and a rigid ring 422 fixedly connected with the embedded ring, and the pressing ring is coaxial with the brake ring; the brake ring is positioned between the angular contact bearing and the compression ring, and a radial groove 43 is arranged on the side surface of the brake ring, which is opposite to the embedded ring.
According to the numerical control machine tool system with the automatic workpiece taking function, when in active braking, the main shaft brake applies a pulling force to the pressing ring through the driving cylinder, the pressing ring is pressed against the side face of the braking ring under the action of the pulling force, the embedded ring on the pressing ring deforms under the pressure of the rigid ring, the embedded ring generates braking protrusions matched with the radial grooves on the side face of the braking ring, the braking protrusions provide braking resistance for the main shaft, main shaft braking is achieved, braking time is short, braking force mainly depends on blocking force provided by the braking protrusions embedded in the radial grooves in the braking process rather than friction force, and therefore friction abrasion of the embedded ring is slow in the braking process, and service life is long.
The numerical control machine tool system with the automatic workpiece taking function further comprises a bearing sealing system, wherein the bearing sealing system comprises a bearing cover 7 connected to the end face of the bearing seat through a bolt, an annular boss 8 pressed on a first deep groove ball bearing is arranged on the bearing cover, a shaft sleeve part 9 matched with the main shaft is arranged in the middle of the bearing cover, a first sealing ring 10 used for sealing a gap between the shaft sleeve and the main shaft is arranged in the shaft sleeve, and a first end cover 11 used for preventing the first sealing ring from falling off is arranged on the end face of the shaft sleeve; a second sealing ring 12 is arranged on the wall of the shaft hole on the box body, which is matched with the front end of the main shaft, the second sealing ring is used for sealing a gap between the front end of the main shaft and the shaft hole on the box body, and a second end cover 13 for fixing the second sealing ring is arranged on the end face of the box body; a third sealing ring 14 is arranged on the box body at a position opposite to the inner ring of the second deep groove ball bearing, and is used for sealing a gap between the box body and the end surface of the third bearing; the first sealing ring, the second sealing ring and the third sealing ring are V-shaped sealing rings.
The bearing sealing system further comprises an air pressure sealing system, the air pressure sealing system comprises an air compressor 15, an air purifier 16 connected with the air compressor, an air dryer 17 connected with the air purifier, a gas surge tank 18 connected with the air dryer, a first pressure regulating valve 19 connected with the gas surge tank, and an air inlet connector 20 connected with the first pressure regulating valve, the air inlet connector comprises an annular pipe 201, an air inlet nozzle 202 which is arranged on the annular pipe and communicated with the first pressure regulating valve, and a plurality of air outlet nozzles 203 which are uniformly arranged on the annular pipe, the air outlet nozzles are arranged on a bearing cover, and the air outlet nozzles are opposite to the end face of the inner ring of the first deep groove ball bearing; the main shaft is provided with a first annular air guide groove 21 and a second annular air guide groove 22, wherein the first annular air guide groove is close to a gap between the end face of the first bearing and the bearing cover, and the second annular air guide groove is close to a gap between the end face of the second bearing and the box body; the surface of the main shaft is also provided with an axial air guide groove 23 which is communicated with the first annular air guide groove and the second annular air guide groove, and the axial air guide grooves are uniformly distributed with a plurality of grooves along the circumferential direction of the main shaft. The air inlet connector in the embodiment can uniformly send the compressed air into the gap between the first bearing end face and the bearing cover, and the second annular air guide groove 22 can uniformly send the compressed air into the gap between the second bearing end face and the box body, so that stable air pressure seal is formed, and lubricating oil leakage is avoided. Meanwhile, the air purifier in the air pressure sealing system can prevent the compressed air from bringing impurities into the bearing, and the air dryer 17 can prevent the air from bringing moisture into the bearing, so that the bearing can be prevented from being damaged by impurities, moisture and the like. And the gas surge tank can stabilize the air pressure, avoids the fluctuation of sealing performance caused by pressure fluctuation, and can conveniently adjust the air through the first pressure regulating valve, so that the air pressure can lead the first sealing ring, the second sealing ring to be separated from the main shaft and the sealing lip of the third sealing ring to be separated from the end face of the bearing when the machine tool works, thereby ensuring that the air pressure can form reliable sealing and lubricating oil leakage can not occur.
The numerical control machine tool system with the automatic workpiece taking function further comprises a bearing pre-tightening gap eliminating device, wherein the bearing pre-tightening gap eliminating device comprises a spacing ring 24 arranged between the first deep groove ball bearing and the second deep groove ball bearing, and two side surfaces of the spacing ring are respectively attached to the outer ring end surfaces of the first deep groove ball bearing and the second deep groove ball bearing; the bearing pre-tightening gap eliminating device further comprises a left permanent magnet ring body 25 and a right permanent magnet ring body 26 which are respectively arranged on the inner ring end surfaces of the first deep groove ball bearing and the second deep groove ball bearing, opposite surfaces of the left permanent magnet ring body and the right permanent magnet ring body are homonymous magnetic poles, opposite parts of the left permanent magnet ring body and the right permanent magnet ring body are also embedded in the same elastic sealing ring sleeve 27, and the elastic sealing ring body is in a compression shape after the bearing is installed; the inner rings of the first deep groove ball bearing and the second deep groove ball bearing are pressed against the steel balls under the repulsive force of the left permanent magnet ring body and the right permanent magnet ring body, so that the outer rings of the deep groove ball bearings, the steel balls and the inner rings are in direct contact.
The numerical control machine tool system with the automatic workpiece taking function further comprises a bearing lubrication system, wherein the bearing lubrication system comprises an oil tank 28, an oil filter 29, an oil pump 30, a cooler 31, a second pressure regulating valve 32, an oil inlet nozzle 33 and an oil outlet nozzle 34, an oil inlet of the oil filter is connected with the oil tank, an oil outlet of the oil filter is connected with an oil inlet end of the oil pump, an oil outlet end of the oil pump is connected with an oil inlet of the cooler, an oil outlet of the cooler is connected with the second pressure regulating valve, the oil inlet nozzle is arranged on the top of a bearing seat, the oil inlet nozzle is used for conveying lubricating oil into a bearing, the oil outlet nozzle is arranged on the bottom of the bearing seat, and the oil outlet nozzle is used for connecting the lubricating oil back to the oil tank; the upper half and the lower half of the partition ring are respectively provided with an upper arc-shaped oil groove 35 and a lower arc-shaped oil groove 36 which are mutually separated, the partition ring is also provided with an oil hole 37 which penetrates through the partition ring along the radial direction, the upper end and the lower end of the oil hole are respectively positioned in the upper arc-shaped oil groove and the lower arc-shaped oil groove, the bearing seat is provided with an oil inlet channel 38 communicated with the upper arc-shaped oil groove and an oil outlet channel 39 communicated with the lower arc-shaped oil groove, the oil inlet nozzle is arranged on the oil inlet channel, and the oil outlet nozzle is arranged on the oil outlet channel.
According to the numerical control machine tool system with the automatic workpiece taking function, the arranged bearing sealing system can introduce compressed air into a gap between the shaft sleeve and the main shaft and a gap between the front end of the main shaft and the shaft hole on the box body, when the machine tool works, the pressure of the compressed air pushes the sealing lips of the first sealing ring and the second sealing ring away from the main shaft, and meanwhile, the sealing lips of the third sealing ring push the end face of the second deep groove ball bearing, so that the friction resistance of the main shaft is reduced, and the service life of the sealing rings can be prolonged. The compressed air can also prevent external pollutants such as dust, water vapor and the like from entering the bearing; when the machine tool is stopped, the sealing lip of the sealing ring is elastically pressed on the main shaft, so that dust, water vapor and the like can be prevented from entering the bearing under static state; therefore, the bearing sealing system can have good protection effect on the friction pair in the bearing, and can prolong the service life of the bearing.
In addition, the compressed air can take away the heat transferred to the spindle during the cutting process from the axial air guide groove on the spindle to the gap between the front end of the spindle and the shaft hole on the box body, so that the spindle can be cooled, the rigidity of the spindle is maintained, and the machining precision of the machine tool is maintained. In addition, in the prior art, lubricating oil is usually led into the bearing for cooling the bearing, and the cooling mode can not prevent heat on the main shaft from being transferred to the bearing inner ring, so that the temperature of the bearing inner ring is greatly influenced by the main shaft, and when the temperature of the bearing inner ring is increased, the rigidity of the bearing inner ring is reduced, which leads to the reduction of the rigidity of a main shaft system, and further reduces the machining precision. The compressed air generated in the bearing sealing system can take away the heat transferred to the spindle by cutting, so that the heat transferred to the inner ring of the spindle box bearing can be reduced, and meanwhile, the heat generated by rotation of the bearing can be partly taken away by the compressed air, so that the bearing sealing system can play a role in dust prevention and pollution prevention protection on the bearing, can play a role in cooling the inner ring of the bearing and the spindle, can improve the rigidity of the spindle and the inner ring of the bearing, and can keep the rotation precision of the spindle.
According to the numerical control machine tool system with the automatic workpiece taking function, the bearing pre-tightening gap eliminating device is arranged, after the first deep groove ball bearing and the second deep groove ball bearing are installed, the inner rings of the first deep groove ball bearing and the second deep groove ball bearing are abutted against the steel balls under the repulsive force action of the left permanent magnet ring body and the right permanent magnet ring body, so that the outer rings of the bearings, the steel balls and the inner rings of the bearings are in gapless contact, the gaps generated by bearing abrasion can be automatically eliminated by repulsive force exerted by the permanent magnet ring bodies, the rigidity of the first deep groove ball bearing and the rigidity of the second deep groove ball bearing are greatly improved, the rigidity of a main shaft system can be greatly improved, and the rotation precision of the main shaft and the machining precision of a machine tool are improved.
According to the numerical control machine tool system with the automatic workpiece taking function, the arranged bearing lubrication system introduces lubricating oil into the bearing, and through the upper arc-shaped oil groove, the lower arc-shaped oil groove and the oil hole structure on the partition ring and the elastic sealing ring sleeve structure for connecting the left magnetic ring body and the right permanent magnetic ring body, the lubricating oil can only flow from the upper half part of the bearing to the lower half part of the bearing, so that good lubrication and cooling can be carried out inside the bearing, the friction and abrasion of the bearing can be reduced, the temperature of the bearing can be reduced, and the bearing can keep good performance for a long time; and the oil filter in the bearing lubrication system can prevent the lubricating oil from bringing impurities into the bearing, and the cooler can keep the temperature of the lubricating oil stable, so that the lubrication and cooling of the lubricating oil in the bearing can be further improved, the bearing can be kept in a good state, and the machining precision of a machine tool system can be further maintained.
In this embodiment, the elastic sealing ring sleeve is made of nitrile rubber. In this embodiment, the first sealing ring, the second sealing ring and the third sealing ring are made of nitrile rubber.
The nitrile rubber for the elastic sealing ring sleeve in the embodiment comprises the following components in percentage by weight:
50-80 parts of nitrile rubber;
6-10 parts of metal fiber;
0.5-1.0 part of stearic acid;
2-3 parts of copper oxide;
0.5-1 part of calcium oxide;
6-10 parts of metal fiber;
5 to 10 percent of dioctyl adipate,
5 to 10 percent of dioctyl sebacate,
3-8 parts of diethyl phthalate
1-3 parts of polyethylene wax
0.5-1.5 parts of promoter
1-3 parts of antiozonant
0-3 parts of anti-aging agent
20-30 parts of carbon black
0.5 to 1.5 portions of antioxidant DDA.
The wear resistance of the nitrile rubber is improved and the rebound performance is improved by adding the metal fiber component into the nitrile rubber in the embodiment. The sealing ring has longer service life and better sealing performance.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (1)
1. The numerical control machine tool system with the automatic workpiece taking function comprises a machine body and a spindle box system arranged on the machine body, wherein the spindle box system comprises a box body and a spindle, and the spindle is a hollow shaft; the front end of the main shaft is arranged on the bearing seat on the inner side of the box body through two deep groove ball bearings, a first deep groove ball bearing in the two deep groove ball bearings is close to the middle of the box body, and a second deep groove ball bearing is close to the outer side of the box body; the rear end of the main shaft is mounted on the box body through an angular contact bearing, and a main shaft end cover for fixing the angular contact bearing is further arranged on the box body; the method is characterized in that:
the machine tool system further comprises an automatic workpiece taking system, the automatic workpiece taking system comprises a stand column arranged on one side of the machine tool, a linear motor horizontally fixed at the upper end of the stand column, an air cylinder vertically fixed on a slide seat of the linear motor, and a workpiece placing frame fixed on the end part of a piston rod of the air cylinder, the linear motor is parallel to the main shaft, and the piston rod of the air cylinder is perpendicular to the main shaft;
the end part of the main shaft is connected with a chuck for clamping a workpiece, the chuck comprises a chuck body fixed at the front end of the main shaft, a claw arranged on the chuck body and a driving disk arranged in the chuck body and rotationally matched with the chuck body, the chuck body is provided with a guide groove extending along the radial direction, the claw is arranged in the guide groove and is in sliding fit with the guide groove, and the driving disk and the claw are in threaded connection through end surfaces;
the automatic workpiece taking system further comprises an electric cylinder arranged in the main shaft, a chuck motor fixed on the end face of the main shaft, a mandrel fixedly connected with a rotor shaft of the chuck motor and a rotary electric joint arranged on an end cover of the main shaft, one end of a shell of the electric cylinder is fixedly connected with the end part of the mandrel, the other end of the shell of the electric cylinder is fixed on the end face of the driving disc, a telescopic rod of the electric cylinder extends out of the driving disc, and the end part of the telescopic rod of the electric cylinder is connected with a workpiece pushing plate; the power lines of the chuck motor and the electric cylinder are connected with the rotary electric joint;
the main shaft box system further comprises a bearing sealing system, the bearing sealing system comprises a bearing cover connected to the end face of the bearing seat through a bolt, an annular boss pressed on the first deep groove ball bearing is arranged on the bearing cover, the middle part of the bearing cover is provided with a shaft sleeve part matched with the main shaft, a first sealing ring used for sealing a gap between the shaft sleeve and the main shaft is arranged in the shaft sleeve, and a first end cover used for preventing the first sealing ring from falling off is arranged on the end face of the shaft sleeve; a second sealing ring is arranged on the wall of the shaft hole, matched with the front end of the main shaft, of the box body, the second sealing ring is used for sealing a gap between the front end of the main shaft and the shaft hole on the box body, and a second end cover for fixing the second sealing ring is arranged on the end face of the box body; a third sealing ring is arranged on the box body at a position opposite to the inner ring of the second deep groove ball bearing, and is used for sealing a gap between the box body and the end surface of the third bearing; the first sealing ring, the second sealing ring and the third sealing ring are V-shaped sealing rings;
the bearing sealing system further comprises an air pressure sealing system, the air pressure sealing system comprises an air compressor, an air purifier connected with the air compressor, an air dryer connected with the air purifier, a gas pressure stabilizing tank connected with the air dryer, a first pressure regulating valve connected with the gas pressure stabilizing tank, and an air inlet joint connected with the first pressure regulating valve, the air inlet joint comprises an annular pipe, an air inlet nozzle arranged on the annular pipe and communicated with the first pressure regulating valve, and a plurality of air outlet nozzles uniformly arranged on the annular pipe, the air outlet nozzles are arranged on the bearing cover, and the air outlet nozzles are opposite to the end face of the inner ring of the first deep groove ball bearing; the main shaft is provided with a first annular air guide groove and a second annular air guide groove, the first annular air guide groove is close to a gap between the end face of the first bearing and the bearing cover, and the second annular air guide groove is close to a gap between the end face of the second bearing and the box body; the surface of the main shaft is also provided with axial air guide grooves which are communicated with the first annular air guide groove and the second annular air guide groove, and a plurality of axial air guide grooves are uniformly distributed along the circumferential direction of the main shaft;
the numerical control machine tool system with the automatic workpiece taking function further comprises a bearing pre-tightening gap eliminating device, wherein the bearing pre-tightening gap eliminating device comprises a spacing ring arranged between the first deep groove ball bearing and the second deep groove ball bearing, and two side surfaces of the spacing ring are respectively attached to the outer ring end surfaces of the first deep groove ball bearing and the second deep groove ball bearing; the bearing pre-tightening gap eliminating device further comprises a left permanent magnet ring body and a right permanent magnet ring body which are respectively arranged on the end faces of the inner rings of the first deep groove ball bearing and the second deep groove ball bearing, the opposite faces of the left permanent magnet ring body and the right permanent magnet ring body are homonymous magnetic poles, and the opposite parts of the left permanent magnet ring body and the right permanent magnet ring body are also embedded in the same elastic sealing ring sleeve; the inner rings of the first deep groove ball bearing and the second deep groove ball bearing are pressed against the steel balls under the repulsive force of the left permanent magnet ring body and the right permanent magnet ring body, so that the outer rings of the deep groove ball bearings, the steel balls and the inner rings are in direct contact;
the numerical control machine tool system with the automatic workpiece taking function further comprises a bearing lubrication system, wherein the bearing lubrication system comprises an oil tank, an oil filter, an oil pump, a cooler, a second pressure regulating valve, an oil inlet nozzle and an oil outlet nozzle, an oil inlet of the oil filter is connected with the oil tank, an oil outlet of the oil filter is connected with an oil inlet end of the oil pump, an oil outlet end of the oil pump is connected with an oil inlet of the cooler, an oil outlet of the cooler is connected with the second pressure regulating valve, the oil inlet nozzle is arranged on the top of a bearing seat, the oil inlet nozzle is used for conveying lubricating oil into the bearing, the oil outlet nozzle is arranged on the bottom of the bearing seat, and the oil outlet nozzle is used for connecting the lubricating oil back to the oil tank; the upper half part and the lower half part of the partition ring are respectively provided with an upper arc-shaped oil groove and a lower arc-shaped oil groove which are mutually separated, the partition ring is also provided with an oil hole penetrating through the partition ring in the radial direction, the upper end and the lower end of the oil hole are respectively positioned in the upper arc-shaped oil groove and the lower arc-shaped oil groove, the bearing seat is provided with an oil inlet channel communicated with the upper arc-shaped oil groove and an oil outlet channel communicated with the lower arc-shaped oil groove, the oil inlet nozzle is arranged on the oil inlet channel, and the oil outlet nozzle is arranged on the oil outlet channel;
the elastic sealing ring sleeve is made of nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906259.6A CN107570732B (en) | 2017-09-29 | 2017-09-29 | Numerical control machine tool system with automatic workpiece taking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906259.6A CN107570732B (en) | 2017-09-29 | 2017-09-29 | Numerical control machine tool system with automatic workpiece taking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107570732A CN107570732A (en) | 2018-01-12 |
| CN107570732B true CN107570732B (en) | 2024-03-15 |
Family
ID=61039617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710906259.6A Active CN107570732B (en) | 2017-09-29 | 2017-09-29 | Numerical control machine tool system with automatic workpiece taking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107570732B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894299B (en) * | 2021-09-30 | 2022-12-06 | 珠海格力电器股份有限公司 | Main shaft gas cleaning device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0015215A1 (en) * | 1979-02-27 | 1980-09-03 | Automobiles Citroen | Workpiece loader or extractor |
| US4279560A (en) * | 1979-01-30 | 1981-07-21 | Toyoda Koki Kabushiki Kaisha | Workpiece transfer apparatus for machine tool |
| JPH08170635A (en) * | 1994-12-20 | 1996-07-02 | Ntn Corp | Preload device for single row rolling bearing |
| CN201103686Y (en) * | 2007-09-11 | 2008-08-20 | 大连华根机械有限公司 | Principal shaft sealing device |
| KR20100073340A (en) * | 2008-12-23 | 2010-07-01 | 창원대학교 산학협력단 | Preload control apparatus of main spindle bearing usig electro magnetic |
| CN202684627U (en) * | 2012-07-12 | 2013-01-23 | 王志坚 | Automatic feeding-discharging double-manipulator system |
| CN203051778U (en) * | 2013-01-11 | 2013-07-10 | 廊坊市北方天宇机电技术有限公司 | Compressed air sealing device |
| CN103231078A (en) * | 2013-04-07 | 2013-08-07 | 北京航空航天大学 | Device suitable for pre-tightening main shaft bearing of precision machine tool |
| CN203304573U (en) * | 2013-06-17 | 2013-11-27 | 台州市东部数控设备有限公司 | Headstock of lathe |
| CN105021402A (en) * | 2015-07-23 | 2015-11-04 | 西安交通大学 | Electromagnetic controllable pre-tightening device for mainshaft bearing |
| CN106826548A (en) * | 2017-02-13 | 2017-06-13 | 福建省正丰数控科技有限公司 | Grinding machine spindle high pressure air seal structure |
| CN207205957U (en) * | 2017-09-29 | 2018-04-10 | 重庆市普创长顺机械有限公司 | Machine tool system with automatic part picking function |
-
2017
- 2017-09-29 CN CN201710906259.6A patent/CN107570732B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4279560A (en) * | 1979-01-30 | 1981-07-21 | Toyoda Koki Kabushiki Kaisha | Workpiece transfer apparatus for machine tool |
| EP0015215A1 (en) * | 1979-02-27 | 1980-09-03 | Automobiles Citroen | Workpiece loader or extractor |
| JPH08170635A (en) * | 1994-12-20 | 1996-07-02 | Ntn Corp | Preload device for single row rolling bearing |
| CN201103686Y (en) * | 2007-09-11 | 2008-08-20 | 大连华根机械有限公司 | Principal shaft sealing device |
| KR20100073340A (en) * | 2008-12-23 | 2010-07-01 | 창원대학교 산학협력단 | Preload control apparatus of main spindle bearing usig electro magnetic |
| CN202684627U (en) * | 2012-07-12 | 2013-01-23 | 王志坚 | Automatic feeding-discharging double-manipulator system |
| CN203051778U (en) * | 2013-01-11 | 2013-07-10 | 廊坊市北方天宇机电技术有限公司 | Compressed air sealing device |
| CN103231078A (en) * | 2013-04-07 | 2013-08-07 | 北京航空航天大学 | Device suitable for pre-tightening main shaft bearing of precision machine tool |
| CN203304573U (en) * | 2013-06-17 | 2013-11-27 | 台州市东部数控设备有限公司 | Headstock of lathe |
| CN105021402A (en) * | 2015-07-23 | 2015-11-04 | 西安交通大学 | Electromagnetic controllable pre-tightening device for mainshaft bearing |
| CN106826548A (en) * | 2017-02-13 | 2017-06-13 | 福建省正丰数控科技有限公司 | Grinding machine spindle high pressure air seal structure |
| CN207205957U (en) * | 2017-09-29 | 2018-04-10 | 重庆市普创长顺机械有限公司 | Machine tool system with automatic part picking function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107570732A (en) | 2018-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107511497B (en) | Numerical control machine tool spindle box system with automatic chuck | |
| CN207205290U (en) | Main-shaft box system with indexing mechanism | |
| CN105500128A (en) | Common abrasive grinding wheel internal and external grinding machine | |
| CN111360285A (en) | High-speed electric spindle | |
| CN112621412A (en) | Surface treatment equipment with chip collection function for bearing production | |
| CN207272196U (en) | Main-shaft box system with embedded arrestment mechanism | |
| CN107570732B (en) | Numerical control machine tool system with automatic workpiece taking function | |
| CN106424970B (en) | A kind of chain digital control gear hobbing machine | |
| CN207205957U (en) | Machine tool system with automatic part picking function | |
| CN107598192B (en) | Spindle box system of numerical control machine tool | |
| CN207386578U (en) | A kind of air-cooled electro spindle | |
| CN207479618U (en) | Lathe headstock system | |
| CN107061565A (en) | Built-in pneumatic brake rotary table and its brake control method | |
| CN207479617U (en) | Main-shaft box system with automatic chuck | |
| CN105458929B (en) | A kind of Superfinishing machine control system | |
| CN212330344U (en) | Radial braking horizontal direct-drive numerical control rotary table | |
| CN107737952A (en) | Main spindle box of numerical control system with indexing mechanism | |
| CN109352527B (en) | High-precision grinding wheel frame turret with locking device | |
| CN209206621U (en) | Milling machine of digital-control spiral conical gear workpiece box | |
| CN109877526B (en) | Hydraulic driving pressure stabilizing gear tooth surface rolling cutter | |
| CN109551261B (en) | Rotary exchanging workbench | |
| CN103128656A (en) | Ball-milling mechanical grinding-wheel-rack spindle | |
| CN219151585U (en) | High-speed ball motorized spindle with oil mist lubrication function | |
| CN205074918U (en) | High -precision grinder with stop device | |
| CN219529785U (en) | High-rigidity inner circle grinding tool capable of being fully lubricated |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230918 Address after: Unit 5-1, No. 41, Yangdu Er Village, Jiulongpo District, Chongqing, 400000 Applicant after: Tang Li Address before: Block B4-6/01, South District of Tongnan Industrial Park, Chongqing Applicant before: CHONGQING PUCHUANG CHANGSHUN MACHINERY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240220 Address after: 353000 No. 25, Jingdong Road, Sanyuan District, Sanming City, Fujian Province Applicant after: SANMING University Country or region after: China Applicant after: Fujian Ji Mao Yuan Construction Project Co.,Ltd. Applicant after: Fujian Tianhua Intelligent Equipment Co.,Ltd. Applicant after: FUJIAN YOUJIAN ARCHITETURE TECHNOLOGY Co.,Ltd. Applicant after: XIAMEN University OF TECHNOLOGY Address before: Unit 5-1, No. 41, Yangdu Er Village, Jiulongpo District, Chongqing, 400000 Applicant before: Tang Li Country or region before: China |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |