CN210208680U

CN210208680U - Integral type headstock

Info

Publication number: CN210208680U
Application number: CN201920817645.2U
Authority: CN
Inventors: Hanyang Ying; 应函扬; Zhongmao Chen; 陈忠茂; Jianming Lu; 卢建明
Original assignee: Taizhou Judong Precision Casting Co Ltd
Current assignee: Taizhou Judong Precision Casting Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-03-31
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to a technical field of machine tool machining wherein discloses an integral type headstock, and it includes headstock box, driving medium mount pad and headstock base, headstock base fixed connection is on the lathe bed of lathe, be provided with the motor installation cavity on the headstock base, the headstock base is base installation face with the contact surface of lathe bed, base installation face extends along vertical direction, the headstock base is kept away from base installation face's one end is provided with the driving medium mount pad, the lower extreme of driving medium mount pad is provided with the headstock box, the headstock box driving medium mount pad and the headstock base adopts lost foam casting integrated into one piece. The utility model discloses having the motor and installing on spindle base, reducing the moment on the headstock, reducing the frictional wear between mounting panel and lathe bed, prolonging the life of headstock and lathe, the headstock adopts lost foam casting integrated into one piece simultaneously, has higher structural strength's effect.

Description

Integral type headstock

Technical Field

The utility model belongs to the technical field of the technique of machine tool machining and specifically relates to an integral type headstock is related to.

Background

The machining center is a highly automated multifunctional numerical control machine tool, the spindle box is an important part of the machining center, and the spindle box is used for arranging a spindle, a motor, transmission parts of the motor and corresponding additional mechanisms.

The prior Chinese patent with the publication number of CN205362697U discloses a direct headstock of integral type for vertical machining center, including the headstock, locate the main shaft in the headstock, locate headstock top and the motor (motor) that the main shaft links to each other, headstock top is equipped with the motor seat of fixed motor, motor seat top is equipped with the motor board, the motor seat, the motor board aligns with the center of main shaft, the headstock is the cuboid structure, the main shaft sets up along a side on the headstock, headstock opposite side is equipped with the mounting panel, the mounting panel is used for sliding connection to the lathe bed of lathe.

The above prior art solutions have the following drawbacks: the headstock design is the cuboid structure, and spare parts such as main shaft, motor keep away from the link of headstock and lathe bed for the distance of the one end that the lathe bed is connected to focus position and headstock is far away, makes to produce great moment on the headstock, increases the frictional wear between mounting panel and lathe bed, influences the life of headstock and lathe bed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integral type headstock, its effect that has higher rigidity and stability.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an integral type headstock, includes headstock box, driving medium mount pad and headstock base, headstock base sliding connection is on the lathe bed of lathe, be provided with the motor installation cavity on the headstock base, the motor installation cavity is used for installing the motor, the headstock base is the pedestal mounting face with the contact surface of lathe bed, pedestal mounting face extends along vertical direction, the headstock base is kept away from pedestal mounting face's one end is provided with the driving medium mount pad, the driving medium mount pad is used for fixed transmission part, the lower extreme of driving medium mount pad is provided with the headstock box, the headstock box is used for installing the main shaft, the headstock box the driving medium mount pad and the headstock base adopts lost foam casting integrated into one piece.

Through adopting above-mentioned technical scheme, the motor is installed on main shaft base, make the focus of headstock be close to the base installation face, reduce the moment on the headstock, reduce the frictional wear between mounting panel and lathe bed, the life of extension headstock and lathe, adopt lost foam casting integrated into one piece simultaneously, can cast out more complicated foundry goods, and because there is not the psammitolite in traditional casting, consequently can not appear because of the psammitolite size is inaccurate or the core position is inaccurate causes the foundry goods wall thickness uneven in traditional sand casting, improve the intensity of headstock.

The utility model discloses further set up to: the improved spindle box is characterized in that a spindle hole is formed in the spindle box body, the axis of the spindle hole extends in the vertical direction, the inner diameter of the spindle hole is larger than the diameter of a spindle, the spindle box body is arranged on the spindle hole, the two ends of the spindle hole are respectively provided with an upper bearing hole and a lower bearing hole, the inner diameter of the upper bearing hole and the lower bearing hole are coaxially arranged with the spindle hole, and the inner diameter of the upper bearing hole and the inner diameter of the lower bearing hole are equal to each other and are larger than the inner diameter of the spindle hole.

By adopting the technical scheme, the main shaft bearing is embedded in the upper bearing hole and the lower bearing hole in an interference manner, the main shaft bearing is sleeved on the main shaft in an interference manner, and the inner diameter of the upper bearing hole and the inner diameter of the lower bearing hole are both larger than that of the main shaft hole, so that a positioning shoulder is formed at the position to prevent the main shaft from sliding in the main shaft hole along the axis direction, meanwhile, the inner diameter of the main shaft hole is larger than that of the main shaft, the friction wear between the inner wall of the main shaft hole and the outer wall of the main shaft is avoided, and the.

The utility model discloses further set up to: the main shaft box body is provided with an avoidance hole which is arranged at the upper end of the upper bearing hole, the avoidance hole is coaxially arranged with the upper bearing hole, and the inner diameter of the avoidance hole is larger than or equal to that of the upper bearing hole.

By adopting the technical scheme, the transmission parts can adopt the following forms: the transmission part comprises a pair of bevel gears which are meshed with each other and the rotation axes of which are vertical to each other and an installation frame, the bevel gears comprise gear rings and bevel gear shafts, the installation frame is used for bearing the bevel gears and simultaneously ensuring the position relation and the matching precision (such as tooth surface clearance) between the bevel gears, and the bevel gear shafts are connected with the main shaft through a coupling; the avoiding hole is used for providing the assembling space of the coupler.

The utility model discloses further set up to: the one end that the main shaft box kept away from seat installation face is provided with the observation window, the observation window communicates along the horizontal direction dodge the hole.

Through adopting above-mentioned technical scheme, the operating condition (if lubricated state, whether connect not hard up etc.) of shaft coupling is looked over at any time to the accessible observation window, guarantees driven reliability, guarantees the processingquality of lathe, and the observation window makes the air flow inside and outside the headstock simultaneously, improves the radiating efficiency.

The utility model discloses further set up to: the transmission part locating hole is formed in the upper end of the avoiding hole and is coaxial with the main shaft hole, and the inner diameter of the transmission part locating hole is larger than that of the avoiding hole.

By adopting the technical scheme, the position accuracy of the mounting frame and the spindle box is ensured when the transmission parts are mounted, and further the position accuracy (like the coaxiality) of connection between the bevel gear on the mounting frame and the spindle in the spindle box is ensured.

The utility model discloses further set up to: one end, close to the base mounting surface, of the spindle box base is provided with a guide groove, and the guide groove extends in the vertical direction.

Through adopting above-mentioned technical scheme, adopt hard rail guide structure, sliding friction and contact surface are great, and it is also stronger to inhale the performance of inhaling, can provide machining efficiency betterly and ensure to have higher precision.

The utility model discloses further set up to: the spindle box base is arranged on the outer wall of one side of the vertical direction and close to the base mounting surface, a mounting plate extends from one end of the base mounting surface, first mounting holes are formed in the mounting plate at intervals, mounting grooves are formed in the outer wall of the other side of the spindle box base in the vertical direction, and second mounting holes are formed in the side wall of the base mounting surface at intervals.

Through adopting above-mentioned technical scheme, mounting hole one, mounting hole two are arranged in being connected to the lathe bed of lathe with the headstock on, and the mounting groove is arranged in holding connecting pieces such as the bolt of wearing to locate in mounting hole two, avoids other spare parts on connecting piece and the lathe to produce and interferes, causes the headstock pine to take off owing to interfering even, seriously influences the processingquality of machined part.

The utility model discloses further set up to: and reinforcing ribs are arranged between two side walls of the mounting groove parallel to the base mounting surface.

By adopting the technical scheme, the weakening of the strength of the base of the spindle box caused by the installation groove is reduced, and the deformation of the spindle box in the machining process is reduced.

The utility model discloses further set up to: ribbed plates are arranged at intervals at one end, close to the base mounting surface, of the spindle box body, are parallel to the axis of the spindle hole and are perpendicular to the base mounting surface, and the upper ends of the ribbed plates are connected to the lower end of the spindle box base.

By adopting the technical scheme, the rib plate is used for improving the connection strength and rigidity of the spindle box body and the spindle box base and reducing the deformation of the spindle box in the machining process.

The utility model discloses further set up to: and a first lightening groove is formed in one end, close to the base mounting surface, of the spindle box body and positioned between the rib plates, and a second lightening groove is formed in one end, far away from the base mounting surface, of the spindle box body.

Through adopting above-mentioned technical scheme, alleviate the whole quality of headstock, reduce the load that headstock self gravity brought.

To sum up, the utility model discloses a beneficial technological effect does:

the motor is arranged on the main shaft base, so that the center of gravity is close to the base mounting surface, the stability of the main shaft box is improved, meanwhile, the main shaft box is integrally formed by lost foam casting, the wall thickness of a casting is uniform, and the strength of the casting is improved;

the hard rail guide structure and the large contact surface are adopted, so that the shock absorption performance is high, the machining efficiency can be better improved, and the high precision is ensured;

the weight reduction structure is arranged, so that the overall mass of the spindle box is reduced, and the load caused by the gravity of the spindle box is reduced.

Drawings

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

Fig. 2 is a schematic sectional structure diagram of the present invention.

Fig. 3 is a schematic view of the structure of the rib.

In the figure, 1, a main spindle box; 11. a spindle hole; 12. an upper bearing bore; 13. a lower bearing bore; 14. avoiding holes; 15. a transmission member positioning hole; 16. an observation window; 17. a rib plate; 18. a first lightening groove; 19. a second weight-reducing groove; 2. a transmission member mounting base; 3. a main spindle box base; 31. a base mounting surface; 32. a guide groove; 33. mounting a plate; (ii) a 331. A first mounting hole; 34. mounting grooves; 341. a second mounting hole; 35. reinforcing ribs; 36. and a motor mounting cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 3, for the utility model discloses an integrated spindle box, including spindle box 1, driving medium mount pad 2 and spindle box base 3, spindle box 1, driving medium mount pad 2 and spindle box base 3 adopt lost foam casting integrated into one piece, spindle box base 3 is fixedly connected to the lathe bed of lathe, the contact surface of spindle box base 3 and lathe bed is base mounting surface 31, base mounting surface 31 extends along the vertical direction, spindle box base 3 is provided with motor mounting cavity 36, be used for installing the motor in the motor mounting cavity 36, the output axis of motor extends along the horizontal direction, make the holistic focus of spindle box be close to base mounting surface 31, improve the stability of spindle box, spindle box base 3 is provided with guide way 32 near the one end of base mounting surface 31, guide way 32 extends along the vertical direction, make the spindle box can accomplish feed motion along the vertical direction, the one end that base installation face 31 was kept away from to headstock base 3 is provided with driving medium mount pad 2, and driving medium mount pad 2 is used for fixed transmission part, and the lower extreme of driving medium mount pad 2 and headstock base 3's lower extreme parallel and level, the lower extreme of driving medium mount pad 2 are provided with main shaft box 1, and main shaft box 1 is used for installing the main shaft, and the axis of main shaft extends along vertical direction.

The transmission parts may take the form of: the transmission part comprises a pair of mutually meshed bevel gears and an installation frame, the rotating axes of the bevel gears are mutually vertical, each bevel gear comprises a gear ring and a bevel gear shaft, the installation frame is used for bearing the bevel gears, the position relation and the matching precision (such as tooth surface clearance) between the bevel gears are guaranteed, and the bevel gear shafts are connected with the main shaft through a coupler.

Referring to fig. 1 and 2, a spindle hole 11 is formed in a spindle case 1, an axis of the spindle hole 11 extends in a vertical direction, an inner diameter of the spindle hole 11 is larger than a diameter of a spindle, so that friction wear between an inner wall of the spindle hole 11 and an outer wall of the spindle is avoided, and service lives of the spindle and a spindle case are guaranteed, an upper bearing hole 12 and a lower bearing hole 13 are respectively formed in two ends of the spindle hole 11 on the spindle case 1, the upper bearing hole 12 and the lower bearing hole 13 are used for interference embedding of a spindle bearing, the spindle bearing is sleeved on the spindle in an interference manner, the inner diameter of the upper bearing hole 12 and the lower bearing hole 13 are coaxially arranged with the spindle hole 11, the inner diameter of the upper bearing hole 12 and the inner diameter of the lower bearing hole 13 are equal to and larger than the inner diameter of the spindle hole 11, and thus a positioning shoulder is formed at the position to prevent the spindle.

Referring to fig. 1 and 2, a relief hole 14 is formed in a spindle housing 1 and located at an upper end of an upper bearing hole 12, the relief hole 14 and the upper bearing hole 12 are coaxially arranged, the relief hole 14 is used for providing an assembly space between a transmission part and a spindle, an inner diameter of the relief hole 14 is greater than or equal to an inner diameter of the upper bearing hole 12, an observation window 16 is formed in one end of the spindle housing 1 away from a base mounting surface, the observation window 16 is communicated with the relief hole 14 along a horizontal direction, a connection state and a lubrication state between the transmission part and the spindle can be checked at any time through the observation window 16, transmission reliability is guaranteed, a transmission part positioning hole 15 is formed in the spindle housing 1 and located at an upper end of the relief hole 14, the transmission part positioning hole 15 and the spindle hole (11) are coaxially arranged, the inner diameter of the transmission part positioning hole 15 is greater than the inner diameter of the relief hole 14, and the transmission, thereby ensuring the position precision (like the axiality) between the bevel gear and the main shaft.

Referring to fig. 1 and 3, a mounting plate 33 extends from one end of the outer wall of one side of the spindle box base 3 in the vertical direction and close to the base mounting surface 31, first mounting holes 331 are formed in the mounting plate 33 at intervals, a mounting groove 34 is formed in the outer wall of the other side of the spindle box base 3 in the vertical direction, second mounting holes 341 are formed in the side wall of the mounting groove 34 close to the base mounting surface 31 at intervals, reinforcing ribs 35 are arranged between two side walls of the mounting groove 34 parallel to the base mounting surface 31 and used for reducing the strength weakening of the spindle box base 3 caused by the installation groove 34, meanwhile, a rib plate 17 is arranged at one end of the spindle box body 1 close to the base mounting surface 31 at intervals, the rib plate 17 is parallel to the axis of the spindle hole 11 and perpendicular to the base mounting surface 31, the upper end of the rib plate 17 is connected to the lower end, the deformation of the spindle box in the machining process is reduced.

Referring to fig. 1 and 3, a first lightening groove 18 is formed in one end, close to the base mounting surface 31, of the spindle box body 1 and located between the rib plates 17, and a second lightening groove 19 is formed in one end, far away from the base mounting surface 31, of the spindle box body 1; the whole mass of the main shaft box is reduced, and the load caused by the gravity of the main shaft box is reduced.

The implementation principle of the embodiment is as follows: the main shaft box body 1, transmission medium mount pad 2 and headstock base 3 are through integrative casting, produce accumulative total error when avoiding assembling, adopt lost foam casting simultaneously, can cast out more complicated foundry goods, and because do not have the psammitolite in traditional casting, consequently can not appear because of the psammitolite size is inaccurate or down the inaccurate casting wall thickness that causes in traditional sand casting, supplementary strengthening rib 35 and floor 17 improve the intensity of headstock, subtract heavy recess one 18 and subtract heavy recess two 19 and alleviate the whole quality of light headstock, reduce the load that headstock self gravity brought.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an integral type headstock which characterized in that: comprises a main shaft box body (1), a transmission piece mounting seat (2) and a main shaft box base (3), the spindle box base (3) is connected to the machine body of the machine tool in a sliding manner, a motor installation cavity (36) is arranged on the spindle box base (3), the motor mounting cavity (36) is used for mounting a motor, the contact surface of the spindle box base (3) and the lathe bed is a base mounting surface (31), the base mounting surface (31) extends along the vertical direction, one end of the main spindle box base (3) far away from the base mounting surface (31) is provided with a transmission piece mounting seat (2), the transmission part mounting seat (2) is used for fixing a transmission part, the lower end of the transmission part mounting seat (2) is provided with a main shaft box body (1), the spindle box body (1) is used for installing a spindle, and the spindle box body (1), the transmission piece installation seat (2) and the spindle box base (3) are integrally formed by lost foam casting.

2. The integral headstock of claim 1, wherein: be provided with main shaft hole (11) on main shaft box (1), the axis of main shaft hole (11) extends along vertical direction, the internal diameter of main shaft hole (11) is greater than the diameter of main shaft, just be located on main shaft box (1) the both ends of main shaft hole (11) are provided with upper bearing hole (12) and lower bearing hole (13) respectively, the internal diameter of upper bearing hole (12) and lower bearing hole (13) with the coaxial setting of main shaft hole (11), the internal diameter of upper bearing hole (12) and the internal diameter of lower bearing hole (13) equals and is greater than the internal diameter of main shaft hole (11).

3. An integral headstock according to claim 2 wherein: the main shaft box body (1) is provided with an avoidance hole (14) in the upper end of the upper bearing hole (12), the avoidance hole (14) is coaxially arranged with the upper bearing hole (12), and the inner diameter of the avoidance hole (14) is larger than or equal to that of the upper bearing hole (12).

4. An integral headstock according to claim 3 wherein: the main shaft box body (1) is far away from one end of the seat mounting surface is provided with an observation window (16), and the observation window (16) is communicated with the avoidance hole (14) along the horizontal direction.

5. An integral headstock according to claim 4 wherein: the upper end of dodging hole (14) is provided with driving medium locating hole (15), driving medium locating hole (15) with spindle hole (11) coaxial setting, the internal diameter of driving medium locating hole (15) is greater than dodge the internal diameter of hole (14).

6. The integral headstock of claim 1, wherein: one end, close to the base mounting surface (31), of the spindle box base (3) is provided with a guide groove (32), and the guide groove (32) extends in the vertical direction.

7. The integral headstock of claim 1, wherein: headstock base (3) just are close to on one side outer wall of vertical direction base installation face (31)'s one end extends there is mounting panel (33), the interval is provided with mounting hole one (331) on mounting panel (33), headstock base (3) are provided with mounting groove (34) on the opposite side outer wall of vertical direction, mounting groove (34) are close to the interval is provided with mounting hole two (341) on the lateral wall of base installation face (31).

8. An integral headstock according to claim 7 wherein: and reinforcing ribs (35) are arranged between two side walls of the mounting groove (34) parallel to the base mounting surface (31).

9. An integral headstock according to claim 2 wherein: ribbed plates (17) are arranged at intervals at one end, close to the base mounting surface (31), of the spindle box body (1), the ribbed plates (17) are parallel to the axis of the spindle hole (11) and perpendicular to the base mounting surface (31), and the upper ends of the ribbed plates (17) are connected to the lower end of the spindle box base (3).

10. An integral headstock according to claim 9 wherein: one end, close to the base mounting surface (31), of the spindle box body (1) and located between the rib plates (17) are provided with a first weight reduction groove (18), and one end, far away from the base mounting surface (31), of the spindle box body (1) is provided with a second weight reduction groove (19).