CN214768990U

CN214768990U - CF type servo interpolation shaft main shaft device for numerical control lathe

Info

Publication number: CN214768990U
Application number: CN202120529647.9U
Authority: CN
Inventors: 孔元彤; 许威凯; 申宾
Original assignee: Goodway Machine (wujiang) Corp
Current assignee: Goodway Machine (wujiang) Corp
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-11-19
Anticipated expiration: 2031-03-15

Abstract

The CF type servo interpolation shaft spindle device for the numerical control lathe comprises a lathe spindle, a CF shaft mechanism, a brake mechanism and an encoder mechanism, wherein the CF shaft mechanism, the brake mechanism and the encoder mechanism are arranged on the lathe spindle, the CF shaft mechanism comprises an oil cylinder, a protective cover, a fixed seat and a motor, the oil cylinder, the protective cover and the motor are fixed on the fixed seat, a transmission shaft, a transmission gear and a speed reducer are arranged in the fixed seat, one end of the transmission shaft is connected with the speed reducer, the speed reducer is connected with the motor, the transmission gear is fixed on the transmission shaft, a shifting block and a guide shaft are arranged on the oil cylinder, the free end of the oil cylinder is connected with the guide shaft, and the shifting block is arranged outside the guide shaft. The device realizes the adjustment of the rotating speed of the lathe spindle by arranging the CF shaft mechanism, so that the whole device is suitable for different working modes.

Description

CF type servo interpolation shaft main shaft device for numerical control lathe

Technical Field

The utility model relates to a servo interpolation axle main shaft field of CF type, concretely relates to servo interpolation axle main shaft device of CF type for numerical control lathe.

Background

The main shaft is one of important hardware in a numerical control lathe, generally comprises a bearing and a transmission part and drives a workpiece to rotate, the conventional main shaft can only be used as a rotating shaft to clamp the workpiece to rotate, and a cutter is used for cutting the workpiece to form a revolving body. Along with the improvement of the production efficiency of products, the processing technology of the numerical control lathe is increased, the equipment investment cost is saved, and the composite processing capabilities of turning, milling, drilling, tapping and the like of complex parts are completed. The numerical control lathe with high efficiency, high precision, low fault and convenient use is a future development trend. The spindle structure of the existing numerical control lathe is simple in function, only a tool can carry out revolving body on a workpiece, and the tool cuts the appearance of a product according to the bus feed of the revolving body.

The numerical control lathe has the combined turning and milling function and can finish the high-efficiency and high-precision combined machining capacity of complex parts such as turning, milling, drilling and tapping, the main shaft is required to have the working capacity of the servo shaft, profile curves can be interpolated and machined together with other feed shafts, and the composite machining machine tool for various machining processes such as turning, milling, drilling and tapping is realized. However, no corresponding lathe spindle is available in the market at present, and has the functions.

Disclosure of Invention

For solving the not enough of prior art existence, the utility model provides a numerical control lathe is with servo interpolation axle spindle unit of CF type, the device has realized the quick accurate meshing to driven toothed disc and drive gear to change the rotational speed of main shaft, the gear combines the back main shaft to rotate and is changed the motor drive on the CF axle mechanism by spindle motor drive, thereby realize that the main shaft can interpolate the processing profile curve together with other feed shafts, realize the main shaft car, mill, bore, attack, the working condition of multiple processing technology such as silk.

The technical scheme of the utility model is that:

the utility model provides a numerical control lathe is with servo interpolation axle spindle unit of CF type, include:

the lathe spindle is provided with the CF shaft mechanism, the brake mechanism and the encoder mechanism;

the CF shaft mechanism comprises an oil cylinder, a protective cover, a fixed seat and the motor, wherein the oil cylinder, the protective cover and the motor are fixed on the fixed seat;

the oil cylinder is provided with a poking block and a guide shaft, the free end of the oil cylinder is connected with the guide shaft, and the poking block is arranged outside the guide shaft.

Preferably, a toggle groove is formed in the transmission gear, and one end, far away from the guide shaft, of the toggle block is arranged in the toggle groove but is not in contact with the transmission gear.

Preferably, the lathe spindle comprises a spindle box body, a clamp, a synchronous belt driving wheel, a driven gear disc, a spindle groove type belt pulley, a brake disc and a spindle, wherein the spindle penetrates through the spindle box body and is fixed on the spindle box body, the clamp is arranged at one end of the spindle box body, the spindle groove type belt pulley, the driven gear disc and the synchronous belt driving wheel are fixed on the spindle, and the brake disc is fixed at one end, far away from the clamp, of the spindle.

Preferably, the brake mechanism comprises a brake outer frame, a brake support and a brake cylinder, the brake outer frame is fixed on the brake support, and the brake cylinder is fixed in the brake outer frame.

Preferably, the encoder mechanism includes encoder, encoder support, encoder adjustment seat and encoder follow driving wheel, the encoder is fixed on the encoder support, the encoder support is fixed on the encoder adjustment seat, the encoder is fixed from the driving wheel on the encoder adjustment seat.

Preferably, the lower end of the fixed seat is open, and the transmission gear extends out of the lower end of the fixed seat.

Preferably, the clamp further comprises a rotary oil cylinder, and the rotary oil cylinder is fixed at one end, far away from the clamp, of the main shaft.

Preferably, a pull rod is arranged in the main shaft, one end of the pull rod is connected with the rotary oil cylinder, and the other end of the pull rod is connected with the clamp.

When the utility model works, an external motor drives the spindle groove type belt pulley to drive the spindle to rotate, when the rotating speed of the spindle needs to be adjusted, the brake cylinder extends out, the brake cylinder clamps the brake disc, the encoder detects the rotation of the synchronous belt driving wheel through the encoder driving wheel, and further detects the rotating angle of the spindle, the angle of the driven gear disc is indirectly provided and fed back to the brake mechanism, the brake cylinder extends out of the brake outer frame, the brake cylinder clamps the brake disc to realize the accurate positioning of the driven gear disc, then the oil cylinder pushes the shifting block to move along the guide shaft, the shifting block pushes the drive gear to move along the direction of the drive shaft, the driven gear disc is meshed with the drive gear, and meanwhile, the external motor loses power, and a motor of the CF shaft mechanism drives the transmission gear to rotate so as to drive the main shaft to rotate, so that interpolation with other feed shafts is realized, and a profile curve is processed.

The utility model discloses the beneficial effect who reaches does:

by arranging the encoder mechanism, the accurate positioning of the driven gear disc and the accurate positioning of the angle are realized, and the accurate matching of the driven gear disc and the transmission gear is ensured;

by arranging the CF shaft mechanism, the left and right movement of the transmission gear is realized, the interpolation of the driven gear and the transmission gear is realized, and the lathe spindle can complete different machining processes.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of a lathe spindle.

Fig. 3 is a front view of fig. 2.

Fig. 4 is a schematic view of the structure of the CF shaft.

Fig. 5 is a cross-sectional view of fig. 4.

Fig. 6 is a schematic structural view of the encoder mechanism.

Fig. 7 is a sectional view of fig. 1 for illustrating the drawbar arrangement.

FIG. 8 is a partial schematic view of the braking mechanism.

In the figure, 1, a lathe spindle; 11. a main shaft box body; 12. a clamp; 13. a synchronous belt driving wheel; 14. a driven gear plate; 15. a main shaft groove type belt pulley; 16. a brake disc; 17. a main shaft; 18. a pull rod;

2. a CF shaft mechanism; 21. an oil cylinder; 22. a protective cover; 23. a fixed seat; 24. a motor; 211. a shifting block; 212. a guide shaft; 231. a drive shaft; 232. a transmission gear; 233. a speed reducer; 234. a poking groove;

3. a brake mechanism; 31. a brake outer frame; 32. a brake bracket; 33. a brake cylinder;

4. an encoder mechanism; 41. an encoder; 42. an encoder support; 43. an encoder adjusting seat; 44. an encoder driven wheel;

5. and a rotary oil cylinder.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1-8, the utility model provides a numerical control lathe is with CF type servo interpolation axle spindle unit, the device has realized the quick accurate meshing to driven toothed disc 14 and drive gear 232 to change main shaft 17's rotation speed, main shaft 17 rotates and is changed the motor 24 drive on the CF axle mechanism 2 by the spindle motor drive after the gear combination, thereby realize that main shaft 17 can interpolate the profile curve with other feed shafts together, realize that main shaft 17 cars, mill, bore, attack, the working condition of multiple processing technology such as silk.

The technical scheme of the utility model is that:

the lathe comprises a lathe spindle 1, a CF shaft mechanism 2, a brake mechanism 3 and an encoder mechanism 4, wherein the CF shaft mechanism 2, the brake mechanism 3 and the encoder mechanism 4 are arranged on the lathe spindle 1; through setting up lathe spindle 1 has realized the processing of product, through setting up CF axle mechanism 2 has realized right the fluctuation back and forth of drive gear 232, through setting up brake mechanism 3 has realized the timely brake to driven toothed disc 14, through setting up encoder mechanism 4 has realized right driven toothed disc 14's accurate location.

The CF shaft mechanism 2 comprises an oil cylinder 21, a protective cover 22, a fixed seat 23 and the motor 24, the oil cylinder 21, the protective cover 22 and the motor 24 are fixed on the fixed seat 23, the oil cylinder 21 is used for pushing the wave block to move along the guide shaft 212, the guide shaft 212 is used for guiding the toggle block 211 to move along the guide shaft 212, a transmission shaft 231, a transmission gear 232 and a speed reducer 233 are arranged in the fixed seat 23, one end of the transmission shaft 231 is connected with the speed reducer 233, the speed reducer 233 is connected with the motor 24, the transmission gear 232 is fixed on the transmission shaft 231, the motor 24 can drive the transmission shaft 231 to rotate, the transmission shaft 231 is used for driving the transmission gear 232 to rotate, and the toggle groove 234 is used for yielding to the toggle block 211; the oil cylinder 21 is provided with a toggle block 211 and a guide shaft 212, the free end of the oil cylinder 21 is connected with the guide shaft 212, and the toggle block 211 is arranged outside the guide shaft 212.

In this embodiment, a toggle groove 234 is formed on the transmission gear 232, and an end of the toggle block 211, which is away from the guide shaft 212, is disposed in the toggle groove 234 but is not in contact with the transmission gear 232.

In this embodiment, the lathe spindle 1 includes a spindle case 11, a clamp 12, a synchronous belt driving wheel 13, a driven gear disc 14, a spindle groove-shaped belt pulley 15, a brake disc 16 and a spindle 17, the spindle 17 passes through the spindle case 11 and is fixed on the spindle case 11, the clamp 12 is disposed at one end of the spindle case 11, the spindle 17 groove-shaped belt pulley, the driven gear disc 14 and the synchronous belt driving wheel 13 are fixed on the spindle 17, the brake disc 16 is fixed at one end of the spindle 17 far from the clamp 12, the spindle case 11 is used for fixing the spindle 17, the clamp 12 is used for clamping a turning tool, the spindle groove-shaped belt pulley 15 is used for driving the spindle 17 to rotate, the synchronous belt driving wheel 13 is used for matching with the encoder mechanism 4 to realize accurate positioning of the driven gear disc 14, the driven gear disc 14 is used for driving the main shaft 17 to rotate after being meshed with the transmission gear 232, and the brake disc 16 is used for braking the driven gear disc 14.

In this embodiment, the brake mechanism 3 includes a brake outer frame 31, a brake support 32 and a brake cylinder 33, the brake outer frame 31 is fixed on the brake support 32, the brake cylinder 33 is fixed in the brake outer frame 31, the brake support 32 is used for supporting the brake outer frame 31, and the brake cylinder 33 is used for clamping the brake disc 16.

In this embodiment, the encoder mechanism 4 includes encoder 41, encoder support 42, encoder adjustment seat 43 and encoder follow driving wheel 44, encoder 41 is fixed on encoder support 42, encoder 41 is used for detecting driven gear dish 14 accurate positioning, encoder support 42 is fixed on encoder adjustment seat 43, encoder support 42 is used for supporting encoder 41, encoder follow driving wheel 44 is fixed on encoder adjustment seat 43, encoder follow driving wheel 44 is used for the indirect supplementary of transmission encoder 41 detects the rotational speed and the parking position of driven gear dish 14.

In this embodiment, the lower end of the fixed seat 23 is open, and the transmission gear 232 extends out of the lower end of the fixed seat 23, so that the transmission gear 232 and the driven gear plate 14 are meshed.

In this embodiment, the clamp further comprises a rotary oil cylinder 5, the rotary oil cylinder 5 is fixed at one end of the main shaft 17 far away from the clamp 12, and the rotary oil cylinder 5 is used for driving the clamp 12 to move.

In this embodiment, a pull rod 18 is arranged in the main shaft 17, one end of the pull rod 18 is connected with the rotary cylinder 5, the other end of the pull rod 18 is connected with the clamp 12, and the rotary cylinder 5 is used for pulling the pull rod 18, so as to realize the clamping movement of the clamp 12.

When the utility model works, the external motor 24 drives the spindle groove type belt pulley 15 to drive the spindle 17 to rotate, when the rotating speed of the spindle 17 needs to be adjusted, the brake cylinder 33 extends out, the brake disc 16 is clamped by the brake cylinder 33, the encoder 41 detects the rotation of the synchronous belt driving wheel 13 detected by the transmission wheel of the encoder 41, and then the rotating angle of the spindle 17 is detected, the angle of the driven gear disc 14 is indirectly provided and fed back to the brake mechanism 3, the brake cylinder 33 extends out of the brake outer frame 31, the brake disc 16 is clamped by the brake cylinder 33, the accurate positioning of the driven gear disc 14 is realized, then the oil cylinder 21 pushes the shifting block 211 to move along the guide shaft 212, the shifting block 211 pushes the transmission gear 232 to move along the direction of the transmission shaft 231, the driven gear plate 14 is meshed with the transmission gear 232, meanwhile, the external motor 24 loses power, the motor 24 of the CF shaft mechanism 2 drives the transmission gear 232 to rotate, the main shaft 17 is further driven to rotate, interpolation with other feeding shafts is further achieved, and a contour curve is machined.

The utility model discloses the beneficial effect who reaches does:

by arranging the encoder mechanism 4, the driven gear disc 14 is accurately positioned and the angle is accurately positioned, and the driven gear disc 14 is accurately matched with the transmission gear 232;

by arranging the CF shaft mechanism 2, the left and right movement of the transmission gear 232 is realized, and the interpolation of the driven gear and the transmission gear 232 is realized, so that the lathe spindle 1 can complete different machining processes.

The above-mentioned embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A CF type servo interpolation shaft main shaft device for a numerical control lathe is characterized by comprising:

the lathe spindle (1) is provided with the CF shaft mechanism (2), the brake mechanism (3) and the encoder mechanism (41);

the CF shaft mechanism (2) comprises an oil cylinder (21), a protective cover (22), a fixed seat (23) and a motor (24), the oil cylinder (21), the protective cover (22) and the motor (24) are fixed on the fixed seat (23), a transmission shaft (231), a transmission gear (232) and a speed reducer (233) are arranged in the fixed seat (23), one end of the transmission shaft (231) is connected with the speed reducer (233), the speed reducer (233) is connected with the motor (24), and the transmission gear (232) is fixed on the transmission shaft (231);

the oil cylinder (21) is provided with a poking block (211) and a guide shaft (212), the free end of the oil cylinder (21) is connected with the guide shaft (212), and the poking block (211) is arranged outside the guide shaft (212).

2. The numerical control lathe-use CF-type servo interpolation shaft spindle device according to claim 1, wherein: a toggle groove (234) is formed in the transmission gear (232), and one end, far away from the guide shaft (212), of the toggle block (211) is arranged in the toggle groove (234) but is not in contact with the transmission gear (232).

3. The CF-type servo interpolation shaft spindle device for a numerically controlled lathe according to claim 1 or 2, wherein: lathe main shaft (1) includes main shaft box (11), anchor clamps (12), synchronous belt action wheel (13), driven gear dish (14), main shaft ditch type belt pulley (15), brake disc (16) and main shaft (17), main shaft (17) pass main shaft box (11), and fix on main shaft box (11), main shaft box (11) one end is equipped with anchor clamps (12), main shaft ditch type belt pulley (15) driven gear dish (14) with synchronous belt action wheel (13) are fixed on main shaft (17), brake disc (16) are fixed main shaft (17) are kept away from the one end of anchor clamps (12).

4. The CF-type servo interpolation shaft spindle device for a numerically controlled lathe according to claim 1 or 2, wherein: brake mechanism (3) are including brake frame (31), brake support (32) and brake cylinder (33), brake frame (31) are fixed on brake support (32), brake cylinder (33) are fixed in brake frame (31).

5. The CF-type servo interpolation shaft spindle device for a numerically controlled lathe according to claim 1 or 2, wherein: encoder mechanism (4) are including encoder (41), encoder support (42), encoder adjustment seat (43) and encoder follow driving wheel (44), encoder (41) are fixed on encoder support (42), encoder support (42) are fixed on encoder adjustment seat (43), encoder follows driving wheel (44) and fixes on encoder adjustment seat (43).

6. The CF-type servo interpolation shaft spindle device for a numerically controlled lathe according to claim 1 or 2, wherein: the lower end of the fixed seat (23) is opened, and the transmission gear (232) extends out of the lower end of the fixed seat (23).

7. The numerical control lathe-use CF-type servo interpolation shaft spindle device according to claim 3, wherein: the clamp is characterized by further comprising a rotary oil cylinder (5), wherein the rotary oil cylinder (5) is fixed at one end, far away from the clamp (12), of the main shaft (17).

8. The numerical control lathe CF-type servo interpolation shaft spindle device according to claim 7, wherein: a pull rod (18) is arranged in the main shaft (17), one end of the pull rod (18) is connected with the rotary oil cylinder (5), and the other end of the pull rod (18) is connected with the clamp (12).