CN216781183U - Direct-drive spindle structure for machine tool - Google Patents
Direct-drive spindle structure for machine tool Download PDFInfo
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- CN216781183U CN216781183U CN202220292502.6U CN202220292502U CN216781183U CN 216781183 U CN216781183 U CN 216781183U CN 202220292502 U CN202220292502 U CN 202220292502U CN 216781183 U CN216781183 U CN 216781183U
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Abstract
The utility model provides a direct-drive spindle structure for a machine tool, which comprises: a main shaft body; the sound absorption and shock absorption sleeve is arranged outside the main shaft main body and comprises a first sound absorption half piece and a second sound absorption half piece, the first sound absorption half piece and the second sound absorption half piece respectively comprise an outer side mounting half cylinder and two sound absorption pads, an elastic bulge is fixedly connected between the two sound absorption pads, and one sound absorption pad is fixedly connected with the inner side of the outer side mounting half cylinder; two sets of L-shaped limiting strips are respectively fixed on the first sound-absorbing half piece and the second sound-absorbing half piece, and the outer side of the first sound-absorbing half piece and the outer side of the second sound-absorbing half piece are respectively installed on the half cylinder. According to the direct-drive spindle structure for the machine tool, the sound-absorbing and shock-absorbing sleeve is arranged outside the spindle main body, when the spindle main body vibrates during working, the vibration can be buffered and absorbed through the sound-absorbing pad and the elastic bulge, the vibration is prevented from being transmitted to the mounting frame, the fixing is unstable, and the sound-absorbing and shock-absorbing sleeve is simple and convenient to mount and dismount.
Description
Technical Field
The utility model relates to the field of machine tools, in particular to a direct-drive spindle structure for a machine tool.
Background
The main shaft of the machine tool refers to a shaft on the machine tool for driving a workpiece or a cutter to rotate. The main shaft component is generally composed of a main shaft, a bearing, a transmission member (gear or pulley), and the like.
The machine tool main shaft also comprises an electric main shaft, the electric main shaft is a new technology which is appeared in the field of numerical control machine tools in recent years and integrates the machine tool main shaft and a main shaft motor into a whole, a belt wheel transmission and a gear transmission are cancelled in a main transmission system of the high-speed numerical control machine tool, and the machine tool main shaft is directly driven by an internal motor, so that the length of a machine tool main transmission chain is shortened to be zero, and the zero transmission of the machine tool is realized. (ii) a
The electric spindle can vibrate due to the fact that the motor drives the electric spindle to rotate when in operation, noise can be generated, long-term vibration can enable connecting pieces such as screws on the electric spindle to be loose, the electric spindle and the mounting base are connected in a threaded mode, and fixing is unstable.
Therefore, it is necessary to provide a direct-drive spindle structure for a machine tool to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a direct-drive spindle structure for a machine tool, which solves the problem that an electric spindle of the machine tool is unstable due to vibration generated during working.
In order to solve the above technical problem, the present invention provides a direct-drive spindle structure for a machine tool, including:
a main shaft body;
the sound absorption and shock absorption sleeve is arranged outside the main shaft main body and comprises a first sound absorption half piece and a second sound absorption half piece, the first sound absorption half piece and the second sound absorption half piece respectively comprise an outer side mounting half cylinder and two sound absorption pads, an elastic bulge is fixedly connected between the two sound absorption pads, and one sound absorption pad is fixedly connected with the inner side of the outer side mounting half cylinder;
the two groups of L-shaped limiting strips are respectively fixed on the outer side mounting half cylinder in the first sound-absorbing half part and the second sound-absorbing half part, the number of each group of L-shaped limiting strips is two, and the two L-shaped limiting strips are symmetrically connected to two sides of the outer side mounting half cylinder;
the first sound absorption half piece and the second sound absorption half piece are fixedly connected through an L-shaped limiting strip matched with a fixing piece.
Preferably, the mounting includes the fixed strip, it leads to the groove to have seted up the type of dogcharacter on the fixed strip, the below of fixed strip both sides all is provided with the card latch fitting spare, the card latch fitting spare includes the mounting groove, the mounting groove is seted up in the last of fixed strip, the inside of mounting groove is provided with the piston piece, the center department of piston piece runs through there is the promotion axle.
Preferably, the one end that promotes the axle runs through the fixed strip and extends to the inside that the groove was led to the type shape, the other end that promotes the axle runs through the fixed strip and extends to the outside of fixed strip, the one end that promotes the axle and is located the fixed strip outside is provided with the pull ring, the surface that promotes the axle and one side cover that is located the piston block is equipped with first elastic component.
Preferably, one end of the L-shaped limiting strip is provided with a fixing hole.
Preferably, be provided with fixed pin mechanism on the fixed flange of main shaft main part one end, fixed pin mechanism includes the screwed pipe, the screwed pipe top is provided with the drive handle, oval recess has been seted up at the top of driving the handle, the inside of oval recess is provided with the rotation axis, the one end of rotation axis runs through the inside that drives the handle and extend to the screwed pipe.
Preferably, the both sides on rotation axis surface and the equal fixedly connected with spacing of inside that is located oval recess, the top fixedly connected with of rotation axis drives the ring, the bottom of rotation axis is rotated and is connected with the promotion axle, the both sides that promote the axle bottom all rotate and are connected with the linking arm, the both sides of screwed pipe all run through there is the stopper, the one end of linking arm with the stopper rotates to be connected.
Preferably, the surface of the pushing shaft is fixedly connected with a round block at the upper side of the connecting arm, and the surface of the pushing shaft is sleeved with a second elastic piece at the upper side of the round block.
Compared with the related art, the direct-drive spindle structure for the machine tool provided by the utility model has the following beneficial effects:
the utility model provides a direct-drive spindle structure for a machine tool, which is characterized in that a sound-absorbing damping sleeve is arranged outside a spindle main body, when the spindle main body generates vibration during working, the vibration can be buffered and absorbed through a sound-absorbing pad and an elastic bulge, the vibration is prevented from being transmitted to a mounting frame, the fixation is unstable, and the mounting and dismounting of the sound-absorbing damping sleeve are simple and convenient.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a direct-drive spindle structure for a machine tool, provided by the utility model;
FIG. 2 is a schematic view of the sound-absorbing and shock-absorbing cover shown in FIG. 1;
FIG. 3 is a schematic structural view of the fixing member shown in FIG. 1;
FIG. 4 is a cross-sectional view of the portion shown in FIG. 1;
FIG. 5 is a cross-sectional view of the fixture shown in FIG. 1;
FIG. 6 is a schematic structural diagram of a second embodiment of a direct-drive spindle structure for a machine tool according to the present invention;
FIG. 7 is a schematic structural view of the retainer pin mechanism shown in FIG. 1;
FIG. 8 is a cross-sectional view of the retainer pin mechanism shown in FIG. 1;
FIG. 9 is a schematic structural view of a mount provided by the present invention;
fig. 10 is a partial cross-sectional view of fig. 9.
Reference numbers in the figures:
1. a main body of the main shaft is provided with a main shaft body,
2. a sound absorption and shock absorption sleeve 21, a first sound absorption half part 22, a second sound absorption half part 211, a half cylinder 212 arranged on the outer side, a sound absorption pad 213 and an elastic bulge,
3. a fixing member for fixing the fixing member to the fixing member,
4. an L-shaped limit strip 5, a fixing hole,
6. a locking piece 61, a mounting groove 62, a piston block 63, a positioning shaft 64, a first elastic piece 65 and a pull ring,
7. a fixed pin mechanism 71, a threaded pipe 72, a driving handle 73, a limiting block 74, a rotating shaft 75, a limiting strip 76, an oval groove 77, a pushing shaft 78, a connecting arm 79, a round block 70 and a second elastic piece,
8. mounting bracket, 9, mounting hole, 10, spacing groove.
Detailed Description
The utility model is further described with reference to the following figures and embodiments.
Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 in combination, wherein fig. 1 is a schematic structural diagram of a first embodiment of a direct-drive spindle structure for a machine tool according to the present invention; FIG. 2 is a schematic view of the structure of the sound-absorbing and shock-absorbing cover shown in FIG. 1; FIG. 3 is a schematic structural view of the fixing member shown in FIG. 1; FIG. 4 is a cross-sectional view of the portion shown in FIG. 1; figure 5 is a cross-sectional view of the fixture shown in figure 1. The lathe is with main shaft structure who directly drives includes:
a main shaft body 1;
the main shaft comprises a main shaft body 1, a sound-absorbing and shock-absorbing sleeve 2, wherein the sound-absorbing and shock-absorbing sleeve 2 is installed outside the main shaft body 1, the sound-absorbing and shock-absorbing sleeve 2 comprises a first sound-absorbing half part 21 and a second sound-absorbing half part 22, the first sound-absorbing half part 21 and the second sound-absorbing half part 22 respectively comprise an outer installation half cylinder 211 and two sound-absorbing pads 212, an elastic bulge 213 is fixedly connected between the two sound-absorbing pads 212, and one sound-absorbing pad 212 is fixedly connected with the inner side of the outer installation half cylinder 211;
the two groups of L-shaped limiting strips 4 are respectively fixed on the outer side mounting half cylinder 211 in the first sound-absorbing half piece 21 and the second sound-absorbing half piece 22, the number of each group of L-shaped limiting strips 4 is two, and the two L-shaped limiting strips 4 are symmetrically connected to two sides of the outer side mounting half cylinder 211;
the first sound-absorbing half piece 21 and the second sound-absorbing half piece 22 are fixedly connected through an L-shaped limiting strip 4 and a fixing piece 3.
The fixing strip 31 is sleeved on a T-shaped part formed by splicing two L-shaped limiting strips 4 through a convex through groove.
The one end that promotes axle 77 runs through the fixed strip 31 and extends to the inside of the logical groove 32 of type shape, the other end that promotes axle 77 runs through the fixed strip 31 and extends to the outside of fixed strip 31, the one end that promotes axle 77 and is located the fixed strip 31 outside is provided with pull ring 65, the surface that promotes axle 77 just is located one side cover of piston block 62 and is equipped with first elastic component 64.
And one end of the L-shaped limiting strip 4 is provided with a fixing hole 5.
And a stop block is arranged at one end of the L-shaped limiting strip 4 far away from the fixing hole 5.
The main shaft is a servo electronic shaft; the sound absorption and shock absorption sleeves 2 with different diameters can be correspondingly sleeved according to the diameters of different ends of the main shaft.
The working principle of the direct-drive spindle structure for the machine tool provided by the utility model is as follows:
by installing the sound absorption and shock absorption sleeve 2 outside the main shaft body 1, when the main shaft body 1 generates shock during working, the shock can be absorbed through the sound absorption pad and the elastic bulge 213, so that the shock is prevented from being transmitted to the mounting frame, and the fixation is unstable;
the sound-absorbing damping sleeve 2 and the main shaft body 1 are simple and convenient to install and operate;
when the spindle is installed, the first sound absorption half piece 21 and the second sound absorption half piece 22 are correspondingly sleeved on the spindle main body 1, and at the moment, the L-shaped limiting strips 4 on the first sound absorption half piece 21 and the second sound absorption half piece 22 after the outer side installation half cylinders 211 are spliced are correspondingly folded to form a T-shaped piece;
at the moment, the fixing piece 3 is correspondingly sleeved on a T-shaped piece formed by splicing two L-shaped limiting strips 4, after the fixing piece 3 moves to a position shaft 63 to be contacted with the L-shaped limiting strips 4, the pull ring 65 is pulled to drive the position shaft 63 to move into the mounting groove 61 and drive the piston block 62 to compress the first elastic piece 64, then the fixing piece 3 continues to slide, when the end part of the fixing piece 3 is contacted with a stop block at the end part of the L-shaped limiting strip 4, the position shaft 63 corresponds to the fixing hole 5 on the L-shaped limiting strip 4, the pull ring 65 is loosened, the piston block 62 is pushed to move under the action of the first elastic piece 64, so that the position shaft 63 is driven to enter the fixing hole 5 to limit the fixing hole, the sound absorption and shock absorption sleeve 2 is installed, and the operation is simple;
and when the sound-absorbing damping sleeve 2 is disassembled, the positioning shaft 63 is pulled out of the fixing hole 5 by pulling the pull ring 65.
Compared with the related art, the direct-drive spindle structure for the machine tool has the following beneficial effects:
inhale sound damping sleeve 2 through the externally mounted at main shaft main part 1, when main shaft main part 1 work produced vibrations, can cushion the absorption to vibrations through inhaling sound pad and elastic bulge 213, avoid transmitting vibrations to the mounting bracket on, make fixed unstable, and inhale the equal easy operation convenience of installation and the dismantlement of sound damping sleeve 2.
Second embodiment
Referring to fig. 6, 7, 8, 9 and 10 in combination, based on the direct-drive spindle structure for a machine tool provided in the first embodiment of the present application, a second embodiment of the present application proposes another direct-drive spindle structure for a machine tool.
Specifically, the difference of the lathe with main shaft structure that directly drives that the second embodiment of this application provided lies in, the lathe with the main shaft structure that directly drives, be provided with fixed pin mechanism 7 on the fixed flange of main shaft main part 1 one end, fixed pin mechanism 7 includes screwed pipe 71, screwed pipe 71 top is provided with drives handle 72, oval recess 76 has been seted up at the top that drives handle 72, the inside of oval recess 76 is provided with rotation axis 74, the one end of rotation axis 74 runs through the inside that drives handle 72 and extend to screwed pipe 71.
The bottom end of the threaded pipe 71 is sealed, and no thread is arranged on the position and the upper side of the threaded pipe 71 at the limit block 73.
The both sides on rotation axis 74 surface just are located the equal fixedly connected with spacing 75 in inside of oval recess 76, the top fixedly connected with of rotation axis 74 drives the ring, the bottom of rotation axis 74 is rotated and is connected with and promotes axle 77, the both sides that promote the axle 77 bottom all are rotated and are connected with linking arm 78, the both sides of screwed pipe 71 all run through there is stopper 73, the one end of linking arm 78 with stopper 73 rotates and connects.
The length of the two limiting strips 75 is longer than the width of the groove cavity of the oval groove 76, wherein the threaded pipe 71 correspondingly penetrates through the limiting block 73, and an inward protruding channel is arranged to limit the limiting block 73.
The surface of the pushing shaft 77 and the upper side of the connecting arm 78 are fixedly connected with a round block 79, and the surface of the pushing shaft 77 and the upper side of the round block 79 are sleeved with a second elastic piece 70.
Wherein, a mounting hole 9 is correspondingly arranged on the mounting rack 8 for fixedly mounting the main shaft body 1, an internal thread is arranged on the inner side of the mounting hole 9, and the two sides of the inner wall of the mounting hole 9 are provided with limit grooves 10.
The number of the fixing pin mechanisms 7 is preferably four, and the number of the corresponding mounting holes 9 is four;
when the main shaft body 1 and the mounting frame 8 are mounted, firstly, the driving ring on the fixing pin mechanism 7 is pulled, so that the rotating shaft 74 is pulled, the rotating shaft 74 pulls the pushing shaft 77, the pushing shaft 77 pulls the limiting block 73 to move into the threaded pipe 71 through the connecting arm 78, meanwhile, the pushing shaft 77 compresses the second elastic piece 70 through the circular block 79, at the moment, the limiting strip 75 moves out of the inside of the oval groove 76, then the rotating shaft 74 is rotated by ninety degrees, the limiting strip 75 is driven to rotate by ninety degrees, and the rotating shaft is limited;
then main shaft body 1 corresponds the pilot hole with on the mounting bracket 8 and installs, then correspond screwed pipe 71 and insert the inside of mounting hole 9 in proper order, and twist through driving handle 72 and move, it is fixed to make screwed pipe 71 correspond threaded connection with mounting hole 9, when screwing up completely, stopper 73 corresponds with spacing groove 10 this moment, through twisting the rotation axis ninety degrees once more this moment, it moves to corresponding with the rectangular side of oval recess 76 to drive spacing 75, promote circular block 79 through the effect of second elastic component 70 this moment, it promotes axle 77 to drive and promotes linking arm 78, linking arm 78 promotes stopper 73 and shifts out screwed pipe 71, enter into inside the spacing groove 10, carry on spacingly to the axial of screwed pipe 71, avoid screwed pipe 71 to become flexible, make fixed more stable, and the installation dismantlement all need not use the instrument, installation easy operation is convenient.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A direct-drive spindle structure for a machine tool, comprising:
a main shaft body;
the main shaft comprises a main shaft body, a sound absorption and shock absorption sleeve and a plurality of elastic lugs, wherein the sound absorption and shock absorption sleeve is arranged outside the main shaft body and comprises a first sound absorption half piece and a second sound absorption half piece, the first sound absorption half piece and the second sound absorption half piece respectively comprise an outer side mounting half cylinder and two sound absorption pads, the elastic lugs are fixedly connected between the two sound absorption pads, and one sound absorption pad is fixedly connected with the inner side of the outer side mounting half cylinder;
the two groups of L-shaped limiting strips are respectively fixed on the outer side mounting half cylinder in the first sound-absorbing half part and the second sound-absorbing half part, the number of each group of L-shaped limiting strips is two, and the two L-shaped limiting strips are symmetrically connected to two sides of the outer side mounting half cylinder;
the first sound absorption half piece and the second sound absorption half piece are fixedly connected through an L-shaped limiting strip matched with a fixing piece.
2. The direct-drive spindle structure for the machine tool according to claim 1, wherein the fixing member comprises a fixing strip, a through groove in a shape like a Chinese character 'tu' is formed in the fixing strip, a locking member is arranged below two sides of the fixing strip, the locking member comprises a mounting groove, the mounting groove is formed in the fixing strip, a piston block is arranged in the mounting groove, and a pushing shaft penetrates through the center of the piston block.
3. The direct-drive spindle structure for the machine tool according to claim 2, wherein one end of the pushing shaft penetrates through the fixing strip and extends to the inside of the convex through groove, the other end of the pushing shaft penetrates through the fixing strip and extends to the outside of the fixing strip, a pull ring is arranged at one end of the pushing shaft, which is located outside the fixing strip, and a first elastic piece is sleeved on one side, which is located on the piston block, of the surface of the pushing shaft.
4. The direct-drive spindle structure for the machine tool according to claim 1, wherein one end of the L-shaped limiting strip is provided with a fixing hole.
5. The direct-drive spindle structure for the machine tool according to claim 1, wherein a fixing pin mechanism is disposed on a fixing flange at one end of the spindle body, the fixing pin mechanism comprises a threaded pipe, a driving handle is disposed at a top end of the threaded pipe, an oval groove is disposed at a top of the driving handle, a rotating shaft is disposed inside the oval groove, and one end of the rotating shaft penetrates through the driving handle and extends into the interior of the threaded pipe.
6. The direct-drive spindle structure for the machine tool according to claim 5, wherein two sides of the surface of the rotating shaft and the inside of the oval groove are fixedly connected with limit strips, the top end of the rotating shaft is fixedly connected with a driving ring, the bottom end of the rotating shaft is rotatably connected with a pushing shaft, two sides of the bottom of the pushing shaft are rotatably connected with connecting arms, two sides of the threaded pipe are respectively penetrated with a limit block, and one end of each connecting arm is rotatably connected with the limit block.
7. The direct-drive spindle structure for the machine tool according to claim 6, wherein a circular block is fixedly connected to the surface of the pushing shaft and located on the upper side of the connecting arm, and a second elastic member is sleeved on the surface of the pushing shaft and located on the upper side of the circular block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220292502.6U CN216781183U (en) | 2022-02-12 | 2022-02-12 | Direct-drive spindle structure for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220292502.6U CN216781183U (en) | 2022-02-12 | 2022-02-12 | Direct-drive spindle structure for machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216781183U true CN216781183U (en) | 2022-06-21 |
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ID=82017647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220292502.6U Active CN216781183U (en) | 2022-02-12 | 2022-02-12 | Direct-drive spindle structure for machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216781183U (en) |
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- 2022-02-12 CN CN202220292502.6U patent/CN216781183U/en active Active
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Effective date of registration: 20220726 Address after: 221000 standard plants No. 9, 10, 11 and 12, intelligent equipment Industrial Park, Fengxian Economic Development Zone, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Leiming Intelligent Equipment Co.,Ltd. Address before: 277500 500m south of Beixin West Road, Tengzhou City, Zaozhuang City, Shandong Province Patentee before: SHANDONG PULUTE MACHINE TOOL Co.,Ltd. |