CN216096426U - Inverted vertical lathe electric spindle with temperature detection function - Google Patents
Inverted vertical lathe electric spindle with temperature detection function Download PDFInfo
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- CN216096426U CN216096426U CN202220000184.1U CN202220000184U CN216096426U CN 216096426 U CN216096426 U CN 216096426U CN 202220000184 U CN202220000184 U CN 202220000184U CN 216096426 U CN216096426 U CN 216096426U
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- bearing
- temperature detection
- dabber
- vertical lathe
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Abstract
The utility model relates to an inverted vertical lathe electric spindle structure with temperature detection, which belongs to the field of machine tool machining production and comprises a spindle and a spindle box body, wherein the spindle is arranged in the spindle box body, one end of the spindle is a large-diameter end, the other end of the spindle is a small-diameter end, a built-in motor rotor is in interference fit with the spindle, a built-in motor stator is fastened with the spindle box body through a rear bearing supporting seat, a temperature sensor is arranged on the spindle box body, one end of the spindle is provided with a labyrinth waterproof structure and an air sealing structure, the temperature sensor is used for collecting the temperature of the front end of the spindle, and the spindle can be accurately positioned by matching with the compensation function of a numerical control system, so that the precision of a machined part is improved.
Description
Technical Field
The utility model relates to a spindle structure, in particular to an inverted vertical lathe electric spindle with a temperature detection function, and belongs to the technical field of mechanical production and processing.
Background
Along with the continuous improvement of mechanical equipment performance and the continuous development of high-precision technology, people have higher and higher requirements on the machining precision of a machine tool, wherein the Z-axis positioning precision of a main shaft is an important factor influencing the precision of machined parts. The Z-axis positioning precision can be controlled within +/-0.003 mm through a grating ruler, if more precise positioning is required, the influence of temperature on the thermal elongation of a machine tool main shaft needs to be researched, the general main shaft is provided with a cooling system, such as oil cooling, water cooling and the like, but because all parts are heated unevenly, the temperature of all parts cannot be kept consistent, and the Z-axis precision is ensured directly through cooling, so that the Z-axis precision is more complicated and difficult.
SUMMERY OF THE UTILITY MODEL
The utility model provides an inverted vertical lathe electric spindle with temperature detection, wherein a built-in motor is arranged between two bearing groups, a rotor of the built-in motor is assembled with a spindle in an interference manner, a stator of the built-in motor is fixed with a main spindle box through the end face of a rear bearing support seat and is fastened together, a temperature sensor is arranged at the position where the box body is matched with the bearing groups, a labyrinth and an air sealing structure are arranged at the large end of the spindle, a brake structure and an encoder are arranged at the small end of the spindle, the milling function can be realized by matching with a power tool tower, and meanwhile, the angular positioning of the spindle can be accurately ensured.
In order to solve the above problems, the specific technical scheme of the utility model is as follows: the utility model provides an invert vertical lathe electricity main shaft structure with temperature detects, includes dabber and main shaft box, and main shaft box internally mounted has dabber, its characterized in that: dabber one end is big diameter end, one end is little diameter end, built-in motor rotor is in the same place with dabber interference fit, built-in motor stator passes through back bearing support seat fastening with the main shaft box and is in the same place, temperature sensor installs on the main shaft box, dabber one end is provided with labyrinth waterproof construction and air tight structure, the dabber other end is provided with brake structure and encoder, hydraulic brake prevents the dabber rotation through pressing from both sides tight brake structure, the tip still is furnished with the encoder simultaneously, can control the angular positioning of dabber.
The dabber pass through the installation on the main shaft box of bearing group I, bearing group II and bearing group III coaxial axle center, II inner circles of bearing group are connected with the front bearing spacer to with I axial locking of lock nut, I inner circles of bearing group are connected with preceding adjustment pad, preceding adjustment pad is located between bearing group I and the dabber.
The built-in motor rotor is arranged on the mandrel in an interference mode, and the built-in motor stator is fixed on the rear bearing supporting seat in a screw fit mode and is coaxial with the built-in motor rotor.
The labyrinth waterproof structure is as follows: the waterproof cover and the front end cover are provided with corresponding grooves and protrusions, the front bearing gland is arranged on the main shaft box body, one side of the front bearing gland compresses the outer ring of the bearing group I, and the front end cover is arranged on the front bearing gland.
The air-tight sealing structure is as follows: the main shaft box body is provided with a radial hole I, the front bearing gland is provided with a radial hole II, the radial hole I is communicated with the radial hole II through the axial hole, the radial hole II leads to the circle center of the front bearing gland, and the radial hole I on the main shaft box body is connected with an external air source.
The bearing set III outer ring is arranged on the rear bearing supporting seat, a rear adjusting pad is arranged between the bearing set III and the mandrel, one end of the rear adjusting pad is in contact with a mandrel shoulder, and the other end of the rear adjusting pad is in contact with the bearing set III inner ring.
The rear bearing spacer bush is coaxially sleeved on the mandrel, one end of the rear bearing spacer bush is in contact with the inner ring of the bearing group III, the other end of the rear bearing spacer bush is locked through a locking nut II, the rear bearing spacer bush is in matched connection with a rear bearing gland, and the rear bearing gland is matched with a rear bearing supporting seat through an end face screw and presses the outer ring of the bearing group III.
And the rear bearing spacer sleeve is provided with an encoder.
The protective cover is arranged on the main shaft box body and covers the rear bearing gland, the encoder and the rear bearing spacer sleeve inside.
The brake structure comprises a brake disc, a brake disc seat and a hydraulic brake, the brake disc seat is connected with one end of the small diameter of the mandrel through a common flat key, the brake disc seat is axially locked through a locking nut III, and the hydraulic brake is arranged on the brake seat.
And the position of the temperature sensor corresponds to the position of the bearing group II.
The utility model has the following beneficial effects: 1. the temperature of the spindle can be detected through the temperature sensor, and the Z value compensation of the machine tool can be realized through feedback to the system, so that more precise positioning is realized.
2. The built-in motor is arranged in the main shaft, and the main shaft box body is directly arranged on the saddle, so that the main shaft has compact structure, simple transmission, good dynamic performance and small vibration, and the integral cutting performance of the machine tool is improved. The labyrinth and the air sealing structure can effectively prevent cutting fluid and foreign matters from entering the main shaft, and the service life of the main shaft is prolonged. The encoder and the brake structure can be matched with a power tool turret to realize milling of a machine tool, and meanwhile, irregular rotary parts can be conveniently and automatically grabbed by accurate mandrel angular positioning.
Drawings
FIG. 1 is a schematic structural view of an electric spindle of an inverted vertical lathe with temperature detection.
Fig. 2 is a schematic diagram of a position structure of a temperature sensor on a main spindle box.
In the figure, 1 mandrel; 2, a waterproof cover; 3, a front end cover; 4, a front bearing gland; 4-1 radial holes II; 5, an outer spacer bush; 6, a main shaft box body; 6-1 radial hole I; 7, a front bearing spacer bush; 8, adjusting the cushion; 9 rear bearing support seat; 10 bearing group III; 11 a rear bearing gland; 12, locking a nut II; 13 a protective cover; 14 common flat bonds; 15 locking the nut III; 16 brake disc seat; 17 a brake disc; 18 a hydraulic brake; 19 an encoder; 20 rear bearing spacer; 21 a brake seat; 22 a built-in motor rotor; 23 a built-in motor stator; 24, locking the nut I; 25 bearing group II; 26 an inner spacer sleeve; 27, a bearing group I; 28 front adjusting pad; 29 main shaft end key; 30 temperature sensors; 31 axial bore.
Detailed Description
As shown in fig. 1-2, an inverted vertical lathe electric spindle structure with temperature detection comprises a spindle 1 and a spindle box 6, wherein the spindle 1 is arranged inside the spindle box 6, one end of the spindle 1 is a large-diameter end, the other end of the spindle is a small-diameter end, a built-in motor rotor 22 is in interference fit with the spindle 1, a built-in motor stator 23 is fastened with the spindle box 6 through a rear bearing support 9, a temperature sensor 30 is arranged on the spindle box 6, the position of the temperature sensor 30 corresponds to the position of a bearing group ii 25, the large-diameter end of the spindle 1 is provided with a labyrinth waterproof structure and an air sealing structure, and the small-diameter end of the spindle 1 is provided with a brake structure and an encoder 19. Before temperature measurement, the change value of the Z-axis elongation caused by the temperature change of the main shaft is manually measured, the lathe normally runs, the temperature sensor 30 monitors the temperature change at any time during the normal running of the lathe, the temperature change is transmitted to the control system, and the control system timely adjusts the Z-axis compensation value according to the initially measured change value of the Z-axis elongation caused by the temperature change, for example: the change value of the Z-axis elongation measured manually is as follows: the temperature rises by 10 ℃, the Z-axis elongation is +0.01, after the lathe normally runs, the temperature of the main shaft rises by 10 ℃ monitored by the temperature sensor 30, the data is transmitted to the control system, the control system automatically adjusts the Z-axis compensation amount to-0.01, and the Z-axis is ensured not to generate the elongation along with the change of the temperature, wherein the model of the temperature sensor 30 is Beijing generation Longcheng LC-16AC 01.
The mandrel 1 is coaxially arranged on the mandrel box body 6 through a bearing group I27, a bearing group II 25 and a bearing group III 10, an inner ring of the bearing group II 25 is connected with a front bearing spacer 7 and is axially locked by a locking nut I24, and an inner ring of the bearing group I27 is connected with a front adjusting pad 28.
The front adjusting pad 28 is located between the bearing set I27 and the spindle 1. The front adjusting pad 28 is used for adjusting the clearance between the bearing set I27 and the mandrel 1.
The built-in motor rotor 22 is arranged on the mandrel 1 in an interference mode, and the built-in motor stator 23 is fixed on the rear bearing support seat 9 in a screw fit mode and is coaxial with the built-in motor rotor 22.
The rear bearing supporting seat 9 is matched with the main spindle box 6 through an end face screw.
The labyrinth structure is as follows: the waterproof cover 2 and the front end cover 3 are provided with corresponding grooves and protrusions, the front end cover 3 is arranged on the front bearing gland 4 in a clearance fit mode, the front bearing gland 4 is arranged on the spindle box body 6, and the outer ring of the bearing group I27 is pressed on one side of the front bearing gland 4.
The air-tight sealing structure is as follows: a radial hole I6-1 is formed in the main shaft box body 6, a radial hole II4-1 is formed in the front bearing gland 4, the radial hole I6-1 is communicated with the radial hole II4-1 through the axial hole 31, the radial hole II4-1 leads to the circle center of the front bearing gland 4, and the radial hole I6-1 in the main shaft box body 6 is connected with an external air source.
And the outer ring of the bearing group III 10 is arranged on the rear bearing support seat 9.
And a rear adjusting pad 8 is arranged between the mandrel 1 and the bearing group III 10, one end of the rear adjusting pad 8 is in contact with the shaft shoulder of the mandrel 1, and the other end of the rear adjusting pad is in contact with the inner ring of the bearing group III 10.
The rear bearing gland 11 is matched with the rear bearing supporting seat 9 through an end face screw and compresses the outer ring of the bearing group III 10.
The mandrel 1 is coaxially sleeved with a rear bearing spacer 20, one end of the rear bearing spacer 20 is in contact with the inner ring of the bearing group III 10, the other end of the rear bearing spacer 20 is locked by a locking nut II12, and a rear bearing gland 11 is matched and connected with the rear bearing spacer 20.
And an encoder 19 is arranged on the rear bearing spacer 20.
The rear bearing protection device comprises a protection cover 13, wherein the protection cover 13 is arranged on a main shaft box body 6 and covers a rear bearing gland 11, an encoder 19 and a rear bearing spacer 20.
The spindle box body 6 is provided with a brake seat 21, the brake structure is composed of a brake disc 17, a brake disc seat 16 and a hydraulic brake 18, the brake disc seat 16 is connected with one end of the spindle 1 with the small diameter through a common flat key 14, the brake disc seat 16 is locked in the axial direction through a locking nut III 15, and the hydraulic brake 18 is arranged on the brake seat 21.
What has been described above is merely a preferred embodiment of the utility model. It should be noted that variations and modifications can be made by those skilled in the art without departing from the principle of the present invention, and they should also be considered as falling within the scope of the present invention.
Claims (10)
1. The utility model provides a take temperature detection's inversion vertical lathe electricity main shaft, includes dabber (1) and main shaft box (6), main shaft box (6) internally mounted has dabber (1), its characterized in that: dabber (1) one end is big diameter end, and one end is the minor diameter end, built-in motor rotor (22) and dabber (1) interference fit together, built-in motor stator (23) pass through back bearing supporting seat (9) with the main shaft box (6) and fasten together, temperature sensor (30) are installed on main shaft box (6), dabber (1) one end is provided with labyrinth waterproof construction and air seal structure, dabber (1) other end is provided with brake structure and encoder (19).
2. The inverted vertical lathe motorized spindle with temperature detection of claim 1, wherein: dabber (1) through the installation of bearing group I (27), bearing group II (25) and bearing group III (10) with the axle center on spindle box (6), bearing group II (25) inner circle is connected with preceding bearing spacer (7) to with lock nut I (24) axial locking, bearing group I (27) inner circle is connected with preceding adjusting pad (28), preceding adjusting pad (28) are located between bearing group I (27) and dabber (1).
3. The inverted vertical lathe motorized spindle with temperature detection of claim 1, wherein: the labyrinth waterproof structure is as follows: corresponding grooves and protrusions are formed in the waterproof cover (2) and the front end cover (3), gaps are matched together, the front bearing gland (4) is installed on the spindle box body (6), the outer ring of the bearing group I (27) is pressed on one side of the front bearing gland (4), and the front end cover (3) is installed on the front bearing gland (4).
4. The inverted vertical lathe motorized spindle with temperature detection of claim 3, wherein: the air-tight sealing structure is as follows: a radial hole I (6-1) is formed in the spindle box body (6), a radial hole II (4-1) is formed in the front bearing gland (4), the radial hole I (6-1) is communicated with the radial hole II (4-1) through an axial hole (31), the radial hole II (4-1) leads to the circle center of the front bearing gland (4), and the radial hole I (6-1) in the spindle box body (6) is connected with an external air source.
5. The inverted vertical lathe motorized spindle with temperature detection of claim 2, wherein: bearing group III (10) outer lane install on rear bearing supporting seat (9), install back adjustment pad (8) between bearing group III (10) and dabber (1), back adjustment pad (8) one end and dabber (1) shaft shoulder contact, one end and bearing group III (10) inner circle contact.
6. The inverted vertical lathe motorized spindle with temperature detection of claim 5, wherein: the rear bearing spacer bush structure is characterized in that a rear bearing spacer bush (20) is coaxially sleeved on the mandrel (1), one end of the rear bearing spacer bush (20) is in contact with an inner ring of the bearing group III (10), the other end of the rear bearing spacer bush (20) is locked through a locking nut II (12), the rear bearing spacer bush (20) is connected with a rear bearing gland (11) in a matched mode, and the rear bearing gland (11) is matched with a rear bearing supporting seat (9) through an end face screw and compresses an outer ring of the bearing group III (10).
7. The inverted vertical lathe motorized spindle with temperature detection of claim 6, wherein: and an encoder (19) is arranged on the rear bearing spacer bush (20).
8. The inverted vertical lathe motorized spindle with temperature detection of claim 6, wherein: the rear bearing protection device comprises a protection cover (13), wherein the protection cover (13) is arranged on a main shaft box body (6) and covers a rear bearing gland (11), an encoder (19) and a rear bearing spacer bush (20).
9. The inverted vertical lathe motorized spindle with temperature detection of claim 1, wherein: the spindle box body (6) is provided with a brake seat (21), the brake structure is composed of a brake disc (17), a brake disc seat (16) and a hydraulic brake (18), the brake disc seat (16) is connected with one end of the spindle (1) with a small diameter through a common flat key (14), the brake disc seat (16) is locked through a locking nut III (15) in the axial direction, and the hydraulic brake (18) is installed on the brake seat (21).
10. The inverted vertical lathe motorized spindle with temperature detection of claim 2, wherein: and the position of the temperature sensor (30) corresponds to the position of the bearing group II (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220000184.1U CN216096426U (en) | 2022-01-02 | 2022-01-02 | Inverted vertical lathe electric spindle with temperature detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220000184.1U CN216096426U (en) | 2022-01-02 | 2022-01-02 | Inverted vertical lathe electric spindle with temperature detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216096426U true CN216096426U (en) | 2022-03-22 |
Family
ID=80719303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220000184.1U Active CN216096426U (en) | 2022-01-02 | 2022-01-02 | Inverted vertical lathe electric spindle with temperature detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216096426U (en) |
-
2022
- 2022-01-02 CN CN202220000184.1U patent/CN216096426U/en active Active
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