CN213496972U

CN213496972U - Rotatable center structure with telescopic belt

Info

Publication number: CN213496972U
Application number: CN202022575471.9U
Authority: CN
Inventors: 张秋平
Original assignee: Suzhou Meidishi Photovoltaic Technology Co ltd
Current assignee: Suzhou Meidishi Photovoltaic Technology Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-22
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a but flexible top structure of gyration area, including top body and tailstock seat, the inside both ends of tailstock seat are provided with preceding guide pin bushing and back guide pin bushing respectively, and the middle part of preceding guide pin bushing and back guide pin bushing one side is provided with first skeleton oil blanket and second skeleton oil blanket respectively, and the middle part of first skeleton oil blanket and second skeleton oil blanket is provided with bearing housing and piston rod respectively, and the inside of bearing housing is provided with three first roller bearing, a second roller bearing, a lock nut, a apical axle, a bearing end cover and top body. This kind of top structure that can rotate area is flexible through actuating mechanism, makes driving motor not only can drive the apical axle rotatory with top body, can also realize the top of product tightly and loosen through the holistic back-and-forth movement of drive bearing housing and piston rod to two inlet port high pressure oiling, can satisfy present wafer gear's processing, has promoted the practicality.

Description

Rotatable center structure with telescopic belt

Technical Field

The utility model relates to a top structure specifically is a top structure that can turn around area is flexible.

Background

The hobbing machine is the most widely used machine tool in gear processing machine tools, and can machine straight teeth, helical gears, worm gears, chain wheels and the like on the hobbing machine, and machine tools for processing the straight teeth, helical teeth, herringbone gears, cylindrical gears and worm gears by hobbing cutters according to a generating method, and when the hobbing cutters are specially made, the machine tools can also machine workpieces with various special tooth shapes, such as splines, chain wheels and the like.

Most of existing gear hobbing machines only have a rotating center or a telescopic spring center, so that the rotating center cannot stretch out and draw back, and the spring center can still move after stretching out and drawing back due to the nature of the spring when stretching out and drawing back, so that the requirement for machining thin gears cannot be met. The method provides a very beneficial help for the automatic gear hobbing production. Therefore, the rotatable belt telescopic center structure is improved.

SUMMERY OF THE UTILITY MODEL

For solving the defect that prior art exists, the utility model provides a but top structure that gyration area is flexible.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a rotatable center structure with extension and contraction, which comprises a center body and a tailstock seat, wherein a front guide sleeve and a rear guide sleeve are respectively arranged at the two ends inside the tailstock seat, the middle parts of one sides of the front guide sleeve and the rear guide sleeve are respectively provided with a first framework oil seal and a second framework oil seal, the middle parts of the first framework oil seal and the second framework oil seal are respectively provided with a bearing sleeve and a piston rod, three first roller bearings, a second roller bearing, a locking nut, a centre shaft, a bearing end cover and a centre body are arranged in the bearing sleeve, one end of the center shaft, which is far away from the locking nut, is provided with a driving mechanism, the driving mechanism consists of a coupler, a motor fixing plate and a driving motor, the oil inlet holes are formed in the two sides of the top end of the tailstock base, and the driving motor is electrically connected with an external power supply through an external switch.

As a preferred technical scheme of the utility model, the outside of preceding guide pin bushing and the outside of back guide pin bushing alternate with the inside both ends of tailstock seat respectively and be connected, the middle part of preceding guide pin bushing and back guide pin bushing all is provided with O type sealing washer, two the outside of O type sealing washer all laminates with the inner wall of tailstock seat.

As a preferred technical scheme of the utility model, the one end of bearing housing is passed through the bolt and is connected with the one end of piston rod, the middle part of first skeleton oil blanket and second skeleton oil blanket is passed respectively to the other end of bearing housing and piston rod.

As a preferred technical scheme of the utility model, the one end and the middle part of apex axle are connected with the inside both ends of bearing housing through three first roller bearing and second roller bearing respectively, the inside outside threaded connection with the apex axle of lock nut, one side and one of them first roller bearing's of lock nut one side laminating.

As a preferred technical scheme of the utility model, the tip of apex axle runs through and extends to the outside of bearing housing, and the tip of apex axle passes through the bolt and is connected with the one end of apex body, bearing end cover fixed mounting is at the tip of apex axle, one side of bearing end cover is laminated with one side of bearing housing.

As an optimal technical scheme of the utility model, lock nut's one end and the one end fixed connection of shaft coupling are kept away from to the apical axis, the other end and driving motor's the output shaft fixed connection of shaft coupling.

As a preferred technical scheme of the utility model, driving motor fixed mounting is in the inside of motor fixed plate, driving motor's output shaft alternates with the middle part of motor fixed plate one side and is connected, motor fixed plate fixed mounting is in the one end of piston rod.

The utility model has the advantages that: this kind of top structure that can rotate area is flexible through actuating mechanism, makes driving motor not only can drive the apical axle rotatory with top body, can also realize the top of product tightly and loosen through the holistic back-and-forth movement of drive bearing housing and piston rod to two inlet port high pressure oiling, can satisfy present wafer gear's processing, has promoted the practicality.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a rotatable belt telescopic center structure of the present invention;

fig. 2 is a schematic sectional view of a retractable center structure of the rotatable belt of the present invention.

In the figure: 1. a tip body; 2. a bearing end cap; 3. a first roller bearing; 4. a bearing housing; 5. a first framework oil seal; 6. a tailstock base; 7. locking the nut; 8. a front guide sleeve; 9. a tip shaft; 10. a second roller bearing; 11. an O-shaped sealing ring; 12. a piston rod; 13. a rear guide sleeve; 14. a second framework oil seal; 15. a coupling; 16. a motor fixing plate; 17. a drive motor; 18. an oil inlet hole.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1 and fig. 2, the utility model relates to a rotatable center structure with extension and contraction, which comprises a center body 1 and a tailstock 6, wherein a front guide sleeve 8 and a rear guide sleeve 13 are respectively arranged at two ends inside the tailstock 6, a first framework oil seal 5 and a second framework oil seal 14 are respectively arranged at the middle part of one side of the front guide sleeve 8 and the rear guide sleeve 13, a bearing sleeve 4 and a piston rod 12 are respectively arranged at the middle part of the first framework oil seal 5 and the second framework oil seal 14, three first roller bearings 3, a second roller bearing 10, a locking nut 7, a center shaft 9, a bearing end cover 2 and a center body 1 are respectively arranged inside the bearing sleeve 4, a driving mechanism is arranged at one end of the center shaft 9 far away from the locking nut 7, the driving mechanism is composed of a coupler 15, a motor fixing plate 16 and a driving motor 17, oil inlets 18 are respectively arranged at two sides of the top end of the tailstock 6, the driving motor 17 is electrically connected with an external power supply through an external switch.

Wherein, the outside of preceding guide pin bushing 8 and the outside of back guide pin bushing 13 alternate with the inside both ends of tailstock seat 6 respectively and are connected, and the middle part of preceding guide pin bushing 8 and back guide pin bushing 13 all is provided with O type sealing washer 11, and the outside of two O type sealing washers 11 all laminates with the inner wall of tailstock seat 6, through the sealed of O type sealing washer 11, makes the inside that external dust is difficult for getting into tailstock seat 6.

Wherein, the one end of bearing housing 4 is connected with the one end of piston rod 12 through the bolt, and the other end of bearing housing 4 and piston rod 12 passes the middle part of first skeleton oil blanket 5 and second skeleton oil blanket 14 respectively, through the connection of bolt, makes bearing housing 4 and piston rod 12 can link together.

Wherein, the one end and the middle part of apex axle 9 are connected with the inside both ends through three first roller bearing 3 and second roller bearing 10 and bearing housing 4 respectively, and the inside outside threaded connection with apex axle 9 of lock nut 7, one side of lock nut 7 and the laminating of one of them first roller bearing 3's one side, through first roller bearing 3 and second roller bearing 10, make the inside rotation at bearing housing 4 that apex axle 9 can be nimble.

Wherein, the tip of apex axle 9 runs through and extends to the outside of bearing housing 4, and the tip of apex axle 9 passes through the bolt to be connected with the one end of apex body 1, and bearing end cover 2 fixed mounting is at the tip of apex axle 9, and one side of bearing end cover 2 is laminated with one side of bearing housing 4, through bearing end cover 2, makes the inside of the difficult junction entering bearing housing 4 through apex axle 9 and bearing housing 4 of external dust.

Wherein, the tip shaft 9 is far away from one end of lock nut 7 and the one end fixed connection of shaft coupling 15, and the other end of shaft coupling 15 and driving motor 17's output shaft fixed connection, through actuating mechanism, make people can be through the rotation of control driving motor 17 output shaft, make shaft coupling 15, tip shaft 9 and tip body 1 rotate.

Wherein, driving motor 17 fixed mounting is in the inside of motor fixed plate 16, and driving motor 17's output shaft and the middle part of motor fixed plate 16 one side alternate and be connected, and motor fixed plate 16 fixed mounting is in the one end of piston rod 12, through motor fixed plate 16, makes driving motor 17 can fix the one end at piston rod 12.

When the centre body 1 needs to rotate, people can control the rotation of the output shaft of the driving motor 17 to enable the output shaft of the driving motor 17 to drive the shaft coupling 15, the centre shaft 9 and the centre body 1 to rotate, when the centre body 1 needs to be controlled to move left and right, people can respectively inject oil into the two oil inlet holes 18, when hydraulic oil enters the interior of the tailstock base 6, under the action of oil pressure, the bearing sleeve 4 and the piston rod 12 can move left and right, so as to drive the centre body 1 and the centre shaft 9 to move left and right, through actuating mechanism, make driving motor 17 not only can drive apical axis 9 and apical body 1 rotatory, can also realize the top of product tightly and loosen through the holistic back-and-forth movement of two inlet ports 18 high-pressure oiling drive bearing housing 4 and piston rod 12 respectively, can satisfy present wafer gear's processing, promoted the practicality.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotatable centre structure with expansion and contraction is characterized by comprising a centre body (1) and a tailstock seat (6), wherein a front guide sleeve (8) and a rear guide sleeve (13) are respectively arranged at two ends of the inside of the tailstock seat (6), a first framework oil seal (5) and a second framework oil seal (14) are respectively arranged in the middle of one side of the front guide sleeve (8) and the middle of one side of the rear guide sleeve (13), a bearing sleeve (4) and a piston rod (12) are respectively arranged in the middle of the first framework oil seal (5) and the second framework oil seal (14), three first roller bearings (3), one second roller bearing (10), one locking nut (7), one centre shaft (9), one bearing end cover (2) and one centre body (1) are arranged in the inside of the bearing sleeve (4), and a driving mechanism is arranged at one end, far away from the locking nut (7), of the centre shaft (9), the driving mechanism is composed of a coupler (15), a motor fixing plate (16) and a driving motor (17), oil inlet holes (18) are formed in two sides of the top end of the tailstock base (6), and the driving motor (17) is electrically connected with an external power supply through an external switch.

2. The center structure with the telescopic belt capable of rotating according to claim 1, wherein the outer portion of the front guide sleeve (8) and the outer portion of the rear guide sleeve (13) are respectively connected with two ends of the inner portion of the tailstock base (6) in a penetrating manner, the middle portions of the front guide sleeve (8) and the rear guide sleeve (13) are respectively provided with an O-shaped sealing ring (11), and the outer portions of the two O-shaped sealing rings (11) are attached to the inner wall of the tailstock base (6).

3. A rotatable belt telescopic center structure according to claim 1, wherein one end of the bearing sleeve (4) is connected with one end of the piston rod (12) through a bolt, and the other ends of the bearing sleeve (4) and the piston rod (12) respectively penetrate through the middle parts of the first framework oil seal (5) and the second framework oil seal (14).

4. A rotatable belt telescopic tip structure according to claim 1, wherein one end and the middle of the tip shaft (9) are respectively connected with two ends of the inside of the bearing housing (4) through three first roller bearings (3) and three second roller bearings (10), the inside of the locking nut (7) is in threaded connection with the outside of the tip shaft (9), and one side of the locking nut (7) is attached to one side of one of the first roller bearings (3).

5. The rotatable belt telescopic centre structure as claimed in claim 1, wherein the end of the centre shaft (9) penetrates through and extends to the outside of the bearing sleeve (4), the end of the centre shaft (9) is connected with one end of the centre body (1) through a bolt, the bearing end cover (2) is fixedly installed at the end of the centre shaft (9), and one side of the bearing end cover (2) is attached to one side of the bearing sleeve (4).

6. A rotatable belt telescopic centre structure according to claim 1, wherein one end of the centre shaft (9) far away from the locking nut (7) is fixedly connected with one end of a coupling (15), and the other end of the coupling (15) is fixedly connected with an output shaft of a driving motor (17).

7. A rotatable belt telescopic centre structure according to claim 1, wherein the driving motor (17) is fixedly installed inside the motor fixing plate (16), the output shaft of the driving motor (17) is inserted into the middle of one side of the motor fixing plate (16), and the motor fixing plate (16) is fixedly installed at one end of the piston rod (12).