CN111590089A

CN111590089A - Belt shaft roller turning device based on double self-centering center frames

Info

Publication number: CN111590089A
Application number: CN202010351996.6A
Authority: CN
Inventors: 姚根龙
Original assignee: Shanghai Yuncheng Plate Making Co ltd
Current assignee: Shanghai Yuncheng Plate Making Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-08-28

Abstract

The invention relates to a turning device with a shaft roller based on a double self-centering center frame, which is used for machining the shaft roller (5), and comprises a first self-centering center frame (6), a second self-centering center frame (7), a lathe spindle (8), a tailstock (9) and a rotary tool rest (10), wherein a spindle head at one end of the shaft roller (5) is arranged on the first self-centering center frame (6) and connected with the lathe spindle (8), a spindle head at the other end of the shaft roller (5) is arranged on the second self-centering center frame (7), the second self-centering center frame (7) is arranged on the tailstock (9), and the rotary tool rest (10) is aligned with the roll surface of the shaft roller (5) to be machined. Compared with the prior art, the invention has the advantages of realizing high-precision turning and the like.

Description

Belt shaft roller turning device based on double self-centering center frames

Technical Field

The invention relates to a turning device for a shaft-bearing roller, in particular to a turning device for a shaft-bearing roller based on a double self-centering center frame.

Background

As shown in fig. 1, a roll with shafts is generally composed of shaft heads 2 at both ends and a roll surface 1, and the shaft heads at both ends are supported on bearings in use of the roll with shafts. The smaller the runout of the roll surface 1 with respect to the head 2, the higher the accuracy of the belt shaft roll.

As shown in fig. 2, a normal clamping method for turning with a spindle roll is a processing method in which a spindle end is clamped by a chuck 3 and a tailstock live center 4 is pressed tightly. This common machining technique has two problems in turning high precision printing rolls.

1.1) when the tailstock center tightly pushes the plate roller, the contact area between the center hole of the center and the plate roller and the small contact area between the center hole and the center are small, the extending length of the center is long, and the precision of the movable center is low. Therefore, the rigidity of the supporting plate roller is insufficient, and when the plate roller is machined, although the shaft head and the roller surface can be clamped and turned at the same time, the relative jumping of the shaft head and the roller surface can only reach 0.03 mm.

1.2) this processing method is liable to generate vibration during processing because of low rigidity of the tailstock center support, and is difficult to control particularly when processing a roll having low rigidity, and may not be able to process the roll.

In order to improve the processing precision of the plate roller, the other method is to use a grinding machine for processing, and the centers at two ends are tightly pressed, so that the required precision can be achieved. But the grinding machine processing is difficult to realize numerical control automatic processing in small batch and single piece processing.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a turning device for a roller with a shaft based on a double self-centering center frame.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a band beam barrel turning device based on two centering centre framves, the device is used for processing band beam barrel, turning device include first from centering centre frame, second from centering centre frame, lathe main shaft, tailstock and revolving knife rest, band beam barrel one end spindle nose install first from centering centre frame and be connected with the lathe main shaft, band beam barrel other end spindle nose install on the second is from centering centre frame, the second from centering centre frame install on the tailstock, revolving knife rest aim at the band beam barrel roll surface of waiting to process.

Preferably, the tailstock is installed on the lathe through a tailstock guide rail.

Preferably, the tailstock guide rail adopts a linear guide rail structure.

Preferably, the rotary tool rest is mounted on the lathe through a tool rest guide rail.

Preferably, the tool rest guide rail adopts a linear guide rail structure, the tailstock guide rail and the tool rest guide rail are arranged in parallel, the tailstock moves along the Z direction on the tailstock guide rail, and the rotary tool rest moves along the Z direction on the tool rest guide rail.

Preferably, the first self-centering steady rest is a fixed self-centering steady rest.

Preferably, said second self-centering steady rest is a mobile self-centering steady rest.

Preferably, first from centering centre frame and second all include central arm, left support arm and right support arm from centering centre frame, left support arm and right support arm establish on central arm both sides for press from both sides the spindle nose of tight tape spool version roller.

Preferably, the central arm, the left support arm and the right support arm are provided with support rollers for self-centering of the shaft head.

Preferably, the lathe spindle is connected with one end shaft head of the belt shaft roller through an elastic coupling.

Compared with the prior art, the invention has the following advantages:

1. when the technology is adopted to process the roller with the shaft, the runout of the roller surface and the shaft head of the plate reaches 0.01 mm. And high-precision turning is realized.

2. The advantages of the existing numerical control system of the lathe are utilized to realize the numerical control processing of the high-precision belt shaft roller, and the advantages of cost and efficiency are exerted in the processing of single-piece or small-batch products.

3. Because the guide rail of the tail seat axial movement is a linear guide rail, the slight degree of the roller surface of the processing roller can be ensured to be less than 0.02 mm.

4. The adopted hydraulic self-centering center frame is convenient to clamp and process the belt shaft roller and has stable process technology.

5. The technology can replace the method of grinding and machining the high-precision belt shaft roller by a turning method.

6. The elastic soft connection of the main shaft and the shaft head with the shaft roller is beneficial to improving the processing precision of the shaft roller.

7. The center frame double-support machining is adopted, the rigidity is good, and the vibration of the shaft roller during machining can be prevented.

Drawings

FIG. 1 is a schematic view of the structure of a roll with a mandrel;

FIG. 2 is a schematic view of a conventional processing apparatus for a roll with a shaft;

FIG. 3 is a schematic view of the turning device of the present invention;

FIG. 4 is a schematic structural view of a self-centering steady rest according to the present invention;

fig. 5 is a schematic structural view of the elastic coupling of the present invention after installation.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

As shown in FIG. 3, the turning device with the shaft roller based on the double self-centering center frames is used for machining the shaft roller 5, the turning device comprises a first self-centering center frame 6, a second self-centering center frame 7, a lathe spindle 8, a tailstock 9 and a rotary tool rest 10, one end of the shaft roller 5 is installed on the first self-centering center frame 6 and connected with the lathe spindle 8, the other end of the shaft roller 5 is installed on the second self-centering center frame 7, the second self-centering center frame 7 is installed on the tailstock 9, and the rotary tool rest 10 is aligned with the roller surface of the shaft roller 5 to be machined.

The tailstock 9 is arranged on the lathe through a tailstock guide rail 11. The tailstock guide rail 11 adopts a linear guide rail structure. The rotary tool post 10 is mounted on a lathe via a tool post guide rail 12. The tool rest guide rail 12 adopts a linear guide rail structure. The tailstock guide rail 11 and the tool rest guide rail 12 are arranged in parallel in the Z direction, meanwhile, the machine tool tailstock moves on the tailstock guide rail 11 in the Z direction, and the tool rest moves on the tool rest guide rail 12 in the Z direction, and the tailstock guide rail 11 and the tool rest guide rail 12 do not interfere with each other.

The numerical control lathe with the inclined lathe bed and the double guide rails is adopted, shaft heads at two ends of a shaft roller of a support belt of the double self-centering frame are adopted for turning the surface of the roller of the shaft roller, the upper half part of a commonly used tailstock of the lathe is cancelled, the self-centering center frame is arranged on the lower part of the tailstock of the lathe, the self-centering center frame is fixed at a part close to the lathe head, and the movable self-centering center frame is arranged on the tailstock.

As shown in fig. 4, the first self-centering steady rest 6 is a fixed self-centering steady rest. The second self-centering steady rest 7 is a movable self-centering steady rest. First from centering centre frame 6 and second all include central arm 71, left support arm 72 and right support arm 73 from centering centre frame 7, left support arm 72 and right support arm 73 establish on central arm 71 both sides for press from both sides the spindle nose that takes spool version roller 5. The central arm 71, the left support arm 72 and the right support arm 73 are all provided with a support roller 74 for self-centering of the shaft head.

As shown in fig. 5, the lathe spindle 8 is connected to one end of the belt roll 5 through an elastic coupling 13 (the elastic coupling drives the belt roll to rotate on the center frame at a high speed). The elastic coupling only transmits power to drive the shaft roller to rotate.

The principle of the invention is as follows: and when the roller surface of the roller is turned, the shaft heads at two ends are selected to be finely processed, and then the roller surface of the roller is processed by taking the shaft heads as a reference. One end of the shaft head is clamped by a fixed self-centering center frame (the spindle of the lathe and the shaft head of the printing roller are in flexible connection by an elastic coupling), and the other end of the shaft head is clamped by the self-centering center frame.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a take beam barrel turning device based on two centering centre framves, the device is used for processing and takes beam barrel (5), its characterized in that, the turning device include first from centering centre frame (6), second from centering centre frame (7), lathe main shaft (8), tailstock (9) and rotatory knife rest (10), take beam barrel (5) one end spindle nose to install on first from centering centre frame (6) and be connected with lathe main shaft (8), take beam barrel (5) other end spindle nose to install on second from centering centre frame (7), the second from centering centre frame (7) install on tailstock (9), rotatory knife rest (10) aim at the roll surface of taking beam barrel (5) of waiting to process.

2. The turning device with the spindle roller based on the double self-centering steady rest according to claim 1, characterized in that the tailstock (9) is installed on the lathe through a tailstock guide (11).

3. The turning device with the shaft roller based on the double self-centering center frame as claimed in claim 2, characterized in that the tailstock guide (11) adopts a linear guide structure.

4. A double self-centering steady rest based turning device with spindle rollers according to claim 3, characterized in that the rotary tool rest (10) is mounted on the lathe by means of a tool rest guide (12).

5. The double self-centering steady rest-based turning device with spindle roller according to claim 4, characterized in that the tool rest guide (12) is a linear guide, the tailstock guide (11) and the tool rest guide (12) are arranged in parallel, the tailstock (9) moves along the Z direction on the tailstock guide (11), and the rotary tool rest (10) moves along the Z direction on the tool rest guide (12).

6. A turning device with axes rollers based on a double self-centering steady rest according to claim 1, characterized in that said first self-centering steady rest (6) is a fixed self-centering steady rest.

7. A turning device with axes rollers based on a double self-centering steady rest according to claim 1, characterized in that said second self-centering steady rest (7) is a mobile self-centering steady rest.

8. The turning device with the shaft roller based on the double self-centering center rest as claimed in claim 1, characterized in that the first self-centering center rest (6) and the second self-centering center rest (7) each comprise a center arm (71), a left arm (72) and a right arm (73), and the left arm (72) and the right arm (73) are arranged on both sides of the center arm (71) and are used for clamping the shaft head of the shaft roller (5).

9. The turning device with the shaft roller based on the double self-centering center frame as claimed in claim 8, characterized in that the center arm (71), the left arm (72) and the right arm (73) are provided with supporting rollers (74) for performing self-centering of the shaft head.

10. The turning device with the shaft roller based on the double self-centering center frame is characterized in that a lathe spindle (8) is connected with one end of the shaft roller (5) through an elastic coupling (13).