CN210937152U - Vertical numerical control lathe spindle structure - Google Patents
Vertical numerical control lathe spindle structure Download PDFInfo
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- CN210937152U CN210937152U CN201921553072.3U CN201921553072U CN210937152U CN 210937152 U CN210937152 U CN 210937152U CN 201921553072 U CN201921553072 U CN 201921553072U CN 210937152 U CN210937152 U CN 210937152U
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- main shaft
- spindle
- bearing
- sleeve
- bearing seat
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 19
- 230000001815 facial effect Effects 0.000 claims abstract 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Abstract
The utility model discloses a vertical numerical control lathe main shaft structure, including the main shaft, install the main shaft switching dish at main shaft top, install the main shaft chuck on main shaft switching dish top, install the synchronous pulley in the main shaft lower part, install the brake disc of main shaft bottom and suit in the lower part of main shaft and be located the brake blotter between synchronous pulley and the brake disc, main shaft facial make-up is equipped with the main shaft bearing frame, on the main shaft, be located and install main shaft bearing frame upper end cover between main shaft bearing frame and the main shaft switching dish, the bottom of main shaft switching dish is connected main shaft bearing frame upper end cover, adopt the upper and lower side cylindrical roller bearing of upper and lower side and cylindrical roller bearing two to support from top to bottom, improve the main shaft in radial rigidity and the position degree of axial lead to a considerable extent, the biserial thrust bearing, the axial bearing capacity of the main shaft can be increased.
Description
Technical Field
The utility model relates to a vertical numerical control lathe main shaft structure.
Background
The vertical lathe is different from a common lathe in that a main shaft of the vertical lathe is vertical, namely the common lathe is erected vertically, and a workbench of the vertical lathe is in a horizontal position, so that the vertical lathe is suitable for machining heavy parts with large diameters and short lengths.
The vertical numerically controlled lathe main shaft is mainly used for accepting the power part of the power vertical numerically controlled lathe, convert the rotary power into the work piece rotary power on the main shaft chuck, the milling cutter saddle on the vertical numerically controlled lathe of cooperation, can process the work piece, in operation, the spindle motor transmits power and motion to the main shaft via the synchronous pulley, the brake disc is equipped with to the synchronous pulley lower extreme, when the main shaft needs scram or radial lock, the brake disc is cliied by the band-type brake cylinder can, install the brake buffer piece between brake disc and synchronous pulley, can play buffering and cushioning effect when the brake, improve the reliability and life-span of the apparatus, the main shaft outside cover is equipped with the main shaft bearing frame, the main shaft bearing frame installs a plurality of axle receptors in, for accepting the rotation of main shaft, however, the main shaft of the present vertical numerically controlled lathe: first, the radial stiffness of the structure is insufficient, and second, the radial load-bearing capacity is insufficient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vertical numerical control lathe main shaft structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, an embodiment of the present invention provides a spindle structure of a vertical numerically controlled lathe, which includes a spindle, a spindle adapter plate installed on the top of the spindle, a spindle chuck installed on the top of the spindle adapter plate, a synchronous pulley installed on the lower portion of the spindle, a brake disc installed at the bottom of the spindle, and a brake buffer pad installed on the lower portion of the spindle and located between the synchronous pulley and the brake disc, wherein a spindle bearing seat is installed on the spindle, a spindle bearing seat upper end cover is installed on the spindle and located between the spindle bearing seat and the spindle adapter plate, the bottom of the spindle adapter plate is connected with the spindle bearing seat upper end cover, a spindle bearing seat is installed in the spindle bearing seat, a spindle bearing is installed on the spindle, a first shaft sleeve is installed at a lower side position of the spindle bearing seat, the first shaft sleeve is sleeved on the spindle, a first shaft sleeve is sequentially sleeved, the novel spindle is characterized in that a second shaft sleeve is arranged in the lower side position of the first shaft sleeve in the spindle bearing seat, the first shaft sleeve and the second shaft sleeve are both arranged in a double-row thrust bearing and are sleeved on a spindle, a third shaft sleeve is arranged in the lower side position of the double-row thrust bearing in the spindle bearing seat, a second cylindrical roller bearing is arranged on the lower side of the third shaft sleeve in the spindle bearing seat, the second cylindrical roller bearing is sleeved on the spindle, a section, between the spindle bearing seat and a synchronous belt pulley, of the spindle is connected with a nut through external threads in a threaded manner, a lower end cover of the bearing seat is arranged between the nut and the spindle bearing seat, and a fourth shaft sleeve are sleeved on the.
Furthermore, the upper end cover and the lower end cover of the main shaft bearing seat are of a circular ring structure, one end of the circular ring structure is provided with a circular step, and the circular steps are inserted into the main shaft bearing seat of the bearing.
Furthermore, the first shaft sleeve is of a circular sleeve structure, and the outer wall of the first shaft sleeve is provided with a circular ring-shaped step.
Furthermore, the second shaft sleeve is of a circular tube structure.
Furthermore, the third shaft sleeve is of a circular lantern ring structure.
Furthermore, the shaft sleeve IV is of a circular lantern ring structure.
To sum up, the utility model has the advantages of it is following:
firstly, the first cylindrical roller bearing and the second cylindrical roller bearing which are arranged at the upper side and the lower side are adopted for up-and-down support, so that the radial rigidity of the main shaft and the position degree of the axial lead of the main shaft are improved to a certain extent.
Second, the middle double row thrust bearing mainly acts to bear the vertical downward axial load, which can increase the axial bearing capacity of the main shaft.
Thirdly, when the nut is screwed upwards along the external thread on the lower side of the main shaft, the upper end of the main shaft bearing seat is pressed on the outer edge of the lower end of the upper end cover of the bearing seat.
Drawings
Fig. 1 is an overall schematic view of an embodiment of the present invention;
fig. 2 is a schematic view partially cut away from the front view in one embodiment of the present invention;
FIG. 3 is an enlarged schematic view of a first bushing according to an embodiment of the present invention;
fig. 4 is an enlarged schematic view of a second shaft sleeve in an embodiment of the present invention;
fig. 5 is an enlarged schematic view of a third shaft sleeve in an embodiment of the present invention;
fig. 6 is an enlarged schematic view of a sleeve four in an embodiment of the present invention.
The main shaft comprises a main shaft chuck 1, a main shaft adapter plate 2, a main shaft bearing seat upper end cover 3, a shaft bearing seat 4, a cylindrical roller bearing 5, a shaft sleeve 6, a double-row thrust bearing 7, a shaft sleeve 8, a shaft sleeve 9, a main shaft bearing seat 10, a cylindrical roller bearing 11, a bearing seat lower end cover 12, a shaft sleeve 13, a nut 14, a synchronous belt pulley 15, a brake buffer 16, a brake disc 17 and a main shaft 101.
Detailed Description
Referring to fig. 1 and 2, a spindle structure of a vertical numerically controlled lathe includes a spindle 101, a spindle adapter 2 mounted on the top of the spindle 101, a spindle chuck 1 mounted on the top of the spindle adapter 2, a synchronous pulley 15 mounted on the lower portion of the spindle 101, a brake disc 17 mounted on the bottom of the spindle 101, and a brake pad 16 mounted on the lower portion of the spindle 101 and located between the synchronous pulley 15 and the brake disc 17, wherein the top of the spindle 101 is inserted into a bottom mounting groove of the spindle adapter 2 and connected to each other by screws on four sides, a bottom insertion groove of the spindle chuck 1 is inserted into a top protruding plate of the spindle adapter 2 and fixed to each other by screws uniformly arranged in a ring shape, a hole mounted in the middle of the synchronous pulley 15 is sleeved into a section of a step on the lower portion of the spindle 101, the brake pad 16 is sleeved on a protruding ring in the center of the upper end of the brake disc 17 in, the center of the lower end of the main shaft 101 is provided with an internal threaded hole, the hexagonal screw is screwed in the internal threaded hole in the center of the lower end of the main shaft 101, a nut of the hexagonal screw upwards compresses the brake disc 17, the brake disc 17 upwards compresses the brake cushion 16, so that the brake cushion 16 upwards compresses the synchronous pulley 15 to limit the synchronous pulley 15 to downwards separate from the step part on the lower part of the main shaft 101 by one section, the positions of the synchronous pulley 15, the brake cushion 16 and the brake disc 17 are stabilized, in operation, the main shaft motor transmits force and motion to the main shaft 101 through the synchronous pulley 15, when the main shaft 101 needs emergency stop or radial locking, the brake disc 17 is clamped by the band-type brake cylinder, and the brake cushion 16 can play a role in buffering and damping during braking, and the reliability and the.
Referring to fig. 1, 2, 3, 4, 5 and 6, a main shaft 101 is provided with a main shaft bearing seat 10, a flange plate at the outer edge of the main shaft bearing seat 10 can be fixed on a main shaft seat plate through a screw, a main shaft bearing seat upper end cover 3 is arranged on the main shaft 101 and positioned between the main shaft bearing seat 10 and a main shaft adapter plate 2, the main shaft bearing seat upper end cover 3 is slidably sleeved on the outer side of the top of the main shaft 101, the bottom of the main shaft adapter plate 2 is connected with the main shaft bearing seat upper end cover 3, a shaft receiver 4 is arranged in the main shaft bearing seat 10 and sleeved on the main shaft 101, the shaft receiver 4 is slidably inserted into the inner upper side of the main shaft bearing seat 10, the model of the shaft receiver 4 is 100UZS90, the inner wall of the inner ring of the shaft receiver 4 is slidably matched with the upper outer wall of the main shaft 101, the shaft receiver 4 is used for, the outer edge of the upper end of a first shaft sleeve 6 is pressed against the lower end of an inner ring of a bearing 4, the outer edge of the lower end of the first shaft sleeve 6 is pressed against the upper end of a middle ring of a double-row thrust bearing 7, the first shaft sleeve 6 is sleeved on a main shaft 101, the inner wall of the first shaft sleeve 6 is in sliding contact with the outer wall of the main shaft 101, the first shaft sleeve 6 is of a circular sleeve structure with the outer wall provided with circular ring type steps, a first cylindrical roller bearing 5 and the double-row thrust bearing 7 are sequentially sleeved on the first shaft sleeve 6 along the vertical direction, the inner wall of the inner ring of the first cylindrical roller bearing 5 is in interference fit with the outer wall of the upper step of the first shaft sleeve 6, a second shaft sleeve 8 is arranged in the main shaft bearing seat 10 of the first shaft sleeve 6 and positioned at the lower side of the first shaft sleeve 6, the outer wall of the upper portion of the second, the second shaft sleeve 8 is of a circular tube structure, the first shaft sleeve 6 and the second shaft sleeve 8 are both arranged in the double-row thrust bearing 7 and sleeved on the main shaft 101, the inner wall of the second shaft sleeve 8 is in sliding contact with the outer wall of the main shaft 101, the third shaft sleeve 9 is arranged in the main shaft bearing seat 10 and positioned at the lower side of the double-row thrust bearing 7, the third shaft sleeve 9 is of a circular lantern ring structure, the second cylindrical roller bearing 11 is arranged in the main shaft bearing seat 10 and positioned at the lower side of the third shaft sleeve 9, the upper end of the third shaft sleeve 9 is in pressing contact with the lower end of the lower outer ring of the double-row thrust bearing 7, the second cylindrical roller bearing 11 is sleeved on the main shaft 101, the inner wall of the inner ring of the second cylindrical roller bearing 11 is in sliding contact with the outer wall of the main shaft 101, the outer wall of the third shaft sleeve 9 is in sliding fit with the inner wall of the main, the external thread is arranged at the lower part of the main shaft 101, a bearing seat lower end cover 12 is arranged between the nut 14 and the main shaft bearing seat 10, the main shaft bearing seat upper end cover 3 and the bearing seat lower end cover 12 are of a circular ring structure with a circular step arranged at one end, the circular steps are all inserted into the bearing main shaft bearing seat 10, the inner wall of the bearing seat lower end cover 12 is provided with a shaft sleeve four 13, the shaft sleeve four 13 and the bearing seat lower end cover 12 are a fusion casting integrated piece, when the nut 14 is screwed upwards along the external thread at the lower side of the main shaft 101, the nut 14 can upwards press the lower end of the shaft sleeve four 13, so that the bearing seat lower end cover 12 upwards presses the lower port of the main shaft bearing seat 10, the upper end of the shaft sleeve four 13 upwards presses the lower end of the inner ring of the cylindrical roller second 11, the upper end of the outer ring of the cylindrical roller second 11 upwards presses the lower end of the shaft sleeve three, the upper end of the second shaft sleeve 8 upwards presses and contacts the lower end of the middle ring of the double-row thrust bearing 7, the upper end of the third shaft sleeve 9 upwards presses and contacts the lower end of the lower outer ring of the double-row thrust bearing 7, the upper end of the middle ring of the double-row thrust bearing 7 upwards presses and contacts the lower end of the shaft sleeve 6, the upper end of the upper outer ring of the double-row thrust bearing 7 upwards presses and contacts the lower end of the outer ring of the cylindrical roller bearing 5, and finally the upper end of the outer ring of the cylindrical roller bearing 5 upwards presses and contacts, and the upper end of the outer edge of the lower end cover 12 of the bearing seat is pressed against the lower end of the main shaft bearing seat 10 upwards, so that the upper end of the main shaft bearing seat 10 presses the outer edge of the lower end of the upper end cover 3 of the bearing seat, therefore, the position of the main shaft bearing seat 10 is stabilized, the models of the first cylindrical roller bearing 5 and the second cylindrical roller bearing 11 are FC182870/02, the model of the double-row thrust bearing 7 is 1308, and the shaft sleeve IV 13 is of a circular lantern ring structure.
The numerical control lathe spindle structure adopts the upper and lower cylindrical roller bearings 5 and the two cylindrical roller bearings 11 to support up and down, the radial rigidity and the position degree of an axial lead of the spindle 101 are improved to a certain extent, the double-row thrust bearing 7 on the middle side mainly acts on bearing vertical and downward axial load, the axial bearing capacity of the spindle 101 can be increased, when the nut 14 is screwed up along the external thread on the lower side of the spindle 101, the nut 14 can upwards press the lower end of the shaft sleeve four 13, so that the lower end cover 12 of the bearing seat upwards presses the lower port of the spindle bearing seat 10, the upper end of the shaft sleeve four 13 upwards presses the lower end of the inner ring of the two cylindrical roller bearings 11, the upper end of the outer ring of the two cylindrical roller bearings 11 upwards presses the lower end of the shaft sleeve three 9, the upper end of the inner ring of the two cylindrical roller bearings 11 upwards presses the lower end of the shaft sleeve two 8, and the upper end of the shaft sleeve two 8, the upper end of the third shaft sleeve 9 upwards presses the lower end of the lower outer ring of the double-row thrust bearing 7, the upper end of the middle ring of the double-row thrust bearing 7 upwards presses the lower end of the first shaft sleeve 6, the upper end of the upper outer ring of the double-row thrust bearing 7 upwards presses the lower end of the outer ring of the first cylindrical roller bearing 5, finally, the upper end of the outer ring of the first cylindrical roller bearing 5 upwards presses the lower end of the outer ring of the bearing 4, and the upper end of the outer edge of the lower end cover 12 of the bearing seat upwards presses the lower end of the main shaft bearing seat 10, so that the upper end of the main shaft.
While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be considered as limited to the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (6)
1. The utility model provides a vertical numerical control lathe main shaft structure, including main shaft (101), install main shaft switching dish (2) at main shaft (101) top, install main shaft chuck (1) on main shaft switching dish (2) top, install synchronous pulley (15) in main shaft (101) lower part, install brake disc (17) and the suit of main shaft (101) bottom and be located synchronous pulley (15) and brake buffer pad (16) between brake disc (17) in the lower part of main shaft (101), its characterized in that: main shaft (101) facial make-up is equipped with main shaft bearing frame (10), main shaft (101) are gone up, lie in and have installed main shaft bearing frame upper end cover (3) between main shaft bearing frame (10) and main shaft switching dish (2), main shaft bearing frame upper end cover (3) is connected to the bottom of main shaft switching dish (2), built-in axle that is equipped with of main shaft bearing frame (10) receives (4) and axle to receive (4) cover to establish on main shaft (101), axle sleeve (6) have been installed to the downside position that lies in axle and receives (4) in main shaft bearing frame (10), axle sleeve (6) are established on main shaft (101) to axle sleeve (6), vertical cover is equipped with cylinder roller bearing (5) and biserial thrust bearing (7) in proper order on axle sleeve (6), axle sleeve (6) and axle sleeve (8) are all packed into biserial thrust bearing (7) and the suit is gone up on main shaft (101) in main shaft (101) The novel spindle bearing is characterized in that a third shaft sleeve (9) is arranged in the spindle bearing seat (10) and at the lower side of the double-row thrust bearing (7), a second cylindrical roller bearing (11) is arranged in the spindle bearing seat (10) and at the lower side of the third shaft sleeve (9), the second cylindrical roller bearing (11) is sleeved on the spindle (101), a section, which is arranged between the spindle bearing seat (10) and the synchronous belt pulley (15), of the spindle (101) is connected with a nut (14) through external threads and threads, a lower bearing seat end cover (12) is arranged between the nut (14) and the spindle bearing seat (10), and a fourth shaft sleeve (13) are sleeved on the spindle (101) in the inner wall of the lower bearing seat end cover (12).
2. The vertical numerically controlled lathe spindle structure as defined in claim 1, wherein: the upper end cover (3) and the lower end cover (12) of the main shaft bearing seat are of circular ring structures, one ends of the circular ring structures are provided with circular steps, and the circular steps are inserted into the bearing main shaft bearing seat (10).
3. The vertical numerically controlled lathe spindle structure as defined in claim 1, wherein: the first shaft sleeve (6) is of a circular sleeve structure with a circular ring-shaped step on the outer wall.
4. The vertical numerically controlled lathe spindle structure as defined in claim 1, wherein: and the second shaft sleeve (8) is of a circular tube structure.
5. The vertical numerically controlled lathe spindle structure as defined in claim 1, wherein: the third shaft sleeve (9) is of a circular lantern ring structure.
6. The vertical numerically controlled lathe spindle structure as defined in claim 1, wherein: the fourth shaft sleeve (13) is of a circular lantern ring structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921553072.3U CN210937152U (en) | 2019-09-18 | 2019-09-18 | Vertical numerical control lathe spindle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921553072.3U CN210937152U (en) | 2019-09-18 | 2019-09-18 | Vertical numerical control lathe spindle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210937152U true CN210937152U (en) | 2020-07-07 |
Family
ID=71391397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921553072.3U Expired - Fee Related CN210937152U (en) | 2019-09-18 | 2019-09-18 | Vertical numerical control lathe spindle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210937152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114042944A (en) * | 2021-11-03 | 2022-02-15 | 江苏星晨高速电机有限公司 | Lathe electric spindle limiting structure |
-
2019
- 2019-09-18 CN CN201921553072.3U patent/CN210937152U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114042944A (en) * | 2021-11-03 | 2022-02-15 | 江苏星晨高速电机有限公司 | Lathe electric spindle limiting structure |
| CN114042944B (en) * | 2021-11-03 | 2022-07-22 | 江苏星晨高速电机有限公司 | Lathe electric spindle limiting structure |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 |