CN218693993U

CN218693993U - Top device of boring machine in pipe shell

Info

Publication number: CN218693993U
Application number: CN202223115160.XU
Authority: CN
Inventors: 常小峰; 苗强; 杨珍妮; 李小虎; 范嘉旖
Original assignee: Shaanxi Maituo Machinery Manufacturing Co ltd
Current assignee: Shaanxi Maituo Machinery Manufacturing Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-03-24
Anticipated expiration: 2032-11-23

Abstract

The application discloses a tip device of a boring machine in a pipe shell, which comprises a supporting seat, an inner sleeve and a supporting pin; the inner sleeve is arranged in the supporting seat, and the outer side of the inner sleeve is rotatably connected with the inner side of the supporting seat; the supporting pin is inserted into the inner side of the inner sleeve and is fixedly connected with the inner sleeve; the supporting pin comprises a cylindrical pin body and a fixed disc, and the cylindrical pin body is fixedly connected with the fixed disc; the cylindrical pin body is inserted into the inner side of the inner sleeve, the fixed disc is in contact with the end face of the inner sleeve, and the fixed disc is fixedly connected to the end part of the boring rod; and the end face of the support seat, which is deviated from the support pin, is fixed on the inner boring machine chuck. The application realizes that the conical end part of the top of the boring bar does not need friction force to complete support, the taper fit is changed into cylindrical fit, the positioning and supporting precision of the boring bar is effectively improved, the production process condition is effectively improved, and meanwhile, the requirement of processing an inner hole of a tube shell is met.

Description

Top device of boring machine in pipe shell

Technical Field

The application relates to the technical field of machining, in particular to a tip device of a boring machine in a tube shell.

Background

In the field of machining of paper-making rollers, in order to obtain uniform wall thickness of a roller shell and reduce the dynamic deflection of a roller in high-speed operation, the inner wall of the roller shell needs to be turned, and a blank surface of an inner hole of the roller shell is removed. The inner wall of the roller shell is machined by a deep hole boring machine. The tapered end part of the boring rod of the deep hole boring machine is propped against the inner conical surface at the center of the chuck to complete the support of the boring rod. Because the boring bar is heavy, the chuck needs to drive the tube shell to rotate when the boring bar is in operation, the boring bar is used for fixing the cutter head and cannot rotate, the conical end part of the boring bar needs to tightly support the chuck, and the support of the boring bar is completed by friction force.

Because the jacking force between the conical end of the boring rod and the chuck is very large, an error exists in the machined conical end, and the conical end part of the tip of the boring rod cannot be completely and tightly matched with the inner conical surface of the chuck, the conical end of the tip of the boring rod is easy to wear in the actual use process, so that the boring rod is inaccurate in positioning, the roundness of the inner wall of a pipe shell after internal boring is large, the straightness of an inner hole is large, defective products need to be repaired, and the production period is delayed.

SUMMERY OF THE UTILITY MODEL

The application provides a boring machine apex device in tube, the boring machine toper tip in the deep hole top in chuck center department inner conical surface in the prior art has been solved, lean on the frictional force to support the boring bar, because the top tight power between boring bar toper end and the chuck is very big, there is the error in the toper end of processing, boring bar apex toper tip can not closely cooperate completely with the chuck inner conical surface, lead to the top toper end of boring bar wearing and tearing easily, and then cause the inaccurate technical problem in boring bar location, the top toper tip of boring bar does not accomplish the support with the frictional force, the taper fit changes the cylinder cooperation, effectively improve boring bar location support accuracy, effectively improve the production technology situation, reach the tube hole processing requirement simultaneously.

The application provides a tip device of a boring machine in a pipe shell, which comprises a supporting seat, an inner sleeve and a supporting pin; the inner sleeve is arranged in the supporting seat, and the outer side of the inner sleeve is rotatably connected with the inner side of the supporting seat; the supporting pin is inserted into the inner side of the inner sleeve and is fixedly connected with the inner sleeve; the supporting pin comprises a cylindrical pin body and a fixed disc, and the cylindrical pin body is fixedly connected with the fixed disc; the cylindrical pin body is inserted into the inner side of the inner sleeve, the fixed disc is in contact with the end face of the inner sleeve, and the fixed disc is fixedly connected to the end part of the boring rod; and the end face of the support seat, which is deviated from the support pin, is fixed on the inner boring machine chuck.

In a possible implementation manner, a bearing is arranged between the inner side of the supporting seat and the outer side of the inner sleeve, and the supporting seat and the inner sleeve are in rotational connection through the bearing.

In one possible implementation, the end face of the support base facing away from the support pin is provided with a first bolt, which is capable of fixing the support base on an inner boring machine chuck.

In a possible implementation manner, the fixed plate is provided with a second bolt, and the second bolt can fix the fixed plate and the end part of the boring rod.

In one possible implementation manner, two sides of the bearing are respectively provided with a limiting nut, a limiting block and a third bolt in a contact manner; the limiting nut is sleeved outside the end part of the inner sleeve and is in threaded connection with the outer side of the inner sleeve; the limiting block is located one side, deviating from the limiting nut, of the bearing, and the limiting block is fixedly connected with the end face of the supporting seat through the third bolt.

One or more technical solutions provided in the present application have at least the following technical effects or advantages:

the supporting seat, the inner sleeve and the supporting pins are adopted, the supporting pins are further arranged and comprise cylindrical pin bodies and fixed discs, and the cylindrical pin bodies are fixedly connected with the fixed discs; the cylindrical pin body is inserted into the inner side of the inner sleeve, the fixed disc is in contact with the end face of the inner sleeve, the fixed disc is fixedly connected to the end part of the boring rod, and the boring rod is supported by the supporting pin and the inner sleeve through cylindrical matching; the boring bar cone end part of the deep hole boring machine in the prior art is supported on the inner cone surface at the center of the chuck, when the boring bar is supported by friction force, because the tightening force between the boring bar cone end and the chuck is very large, errors exist in the processed cone end, the top cone end part of the boring bar cannot be completely and tightly matched with the inner cone surface of the chuck, the top cone end of the boring bar is easy to wear, and further the technical problem that the boring bar is inaccurate in positioning is caused, the support of the top cone end part of the boring bar is completed without friction force is realized, the taper fit is changed into cylindrical fit, the positioning and supporting precision of the boring bar is effectively improved, the production process condition is effectively improved, and meanwhile, the requirement of processing of an inner hole of a tube shell is met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a boring machine nose device in a cartridge according to an embodiment of the present disclosure.

Reference numerals: 1-a support seat; 2-inner sleeve; 3-a support pin; 31-cylindrical pin body; 32-fixed disk; 4-a bearing; 5-a first bolt; 6-a second bolt; 7-a limit nut; 8-a limiting block; 9-third bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1, the tip device of the boring machine in the tube shell provided by the embodiment of the application comprises a supporting seat 1, an inner sleeve 2 and a supporting pin 3; the inner sleeve 2 is arranged inside the supporting seat 1, and the outer side of the inner sleeve 2 is rotatably connected with the inner side of the supporting seat 1; the supporting pin 3 is inserted into the inner side of the inner sleeve 2 and is fixedly connected with the inner sleeve 2; the supporting pin 3 comprises a cylindrical pin body 31 and a fixed disc 32, and the cylindrical pin body 31 is fixedly connected with the fixed disc 32; the cylindrical pin body 31 is inserted into the inner side of the inner sleeve 2, and the fixed disc 32 is fixedly connected with the end surface of the inner sleeve 2; the end face of the support base 1 facing away from the support pin 3 is fixed to the inner boring machine chuck. In the embodiment of the application, when actually installing, with the terminal surface of supporting seat 1 fixed on interior boring machine chuck, then insert supporting pin 3 in endotheca 2, be about to the inboard of cylindrical pin body 31 grafting to endotheca 2, with the end face contact joint of fixed disk 32 with endotheca 2, then with the tip of boring bar with fixed disk 32 fixed connection together, realize for the cylinder cooperation between cylindrical pin body 31 and the endotheca 2, and then can support fixedly through supporting pin 3 to the boring bar, when the in-service use, the boring bar does not do rotary motion, supporting seat 1 is rotary motion along with interior boring machine chuck, because be the face of cylinder cooperation between supporting pin 3 and the endotheca 2, there is not axial force, only receive the partial action of gravity of boring bar, the apical atress of boring bar has greatly reduced.

Referring to fig. 1, a bearing 4 is disposed between the inner side of the supporting seat 1 and the outer side of the inner sleeve 2, and the supporting seat 1 and the inner sleeve 2 are rotatably connected through the bearing 4. Set up bearing 4 between supporting seat 1 and endotheca 2 in this application embodiment, when rotary motion was done along with the chuck to supporting seat 1, motionless's supporting pin 3 was supported by bearing 4, and the bearing 4 inner circle is installed on 2 outsides of endotheca, and the outer lane dress plays the support and passes through rotary motion to static effect at supporting seat 1 inboard.

Referring to fig. 1, the end face of the support base 1 facing away from the support pin 3 is provided with a first bolt 5, the first bolt 5 being capable of fixing the support base 1 on the internal boring machine chuck. In the embodiment of the application, the first bolt 5 is arranged, so that the support seat 1 can be conveniently fixed on the inner boring machine chuck through the first bolt 5 during actual installation.

Referring to fig. 1, the fixed plate 32 is provided with a second bolt 6, and the second bolt 6 can fix the fixed plate 32 to an end of the boring bar. Through setting up second bolt 6 in this application embodiment, during actual installation, conveniently fix fixed disk 32 with the front end of boring bar through second bolt 6, finally realize the support and the fixed to the boring bar.

Referring to fig. 1, two sides of the bearing 4 are respectively provided with a limit nut 7, a limit block 8 and a third bolt 9 in a contact manner; the limiting nut 7 is sleeved outside the end part of the inner sleeve 2 and is in threaded connection with the outer side of the inner sleeve 2; the limiting block 8 is located at one side of the bearing 4 departing from the limiting nut 7, and the limiting block 8 is fixedly connected with the end face of the supporting seat 1 through a third bolt 9. Through screwing up stop nut 7 and third bolt 9 in this application embodiment to carry out axial spacing with bearing 4, avoid bearing 4 to take place axial displacement.

The installation process and the working principle of the tip device of the boring machine in the pipe shell provided by the embodiment of the application are as follows:

the supporting seat 1 is fixed on a chuck of the inner boring machine by using a first bolt 5, the fixed disc 32 is fixed at the front end of the boring bar by using a second bolt 6, the cylindrical pin body 31 is inserted into the inner side of the inner sleeve 2, the inner ring of the bearing 4 is arranged on the inner sleeve 2, the outer ring of the bearing 4 is arranged in the inner hole of the supporting seat 1 and plays a role in supporting and transferring the rotary motion to the static state. The bearing 4 is fixed at the mounting position by the limiting nut 7 and the limiting block 8 to prevent axial movement. During operation, the boring bar supporting pin 3 is inserted into the inner sleeve 2 to support the whole boring bar without rotating, the supporting seat 1 rotates along with the chuck, and the immovable supporting pin 3 is supported by the bearing 4, so that the supporting pin 3 is matched with the inner sleeve 2 through a cylindrical surface, has no axial force and is only under the action of partial gravity of the boring bar, and the top stress of the boring bar is greatly reduced.

The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.

Claims

1. A tip device of a boring machine in a pipe shell is characterized by comprising a supporting seat (1), an inner sleeve (2) and a supporting pin (3);

the inner sleeve (2) is arranged inside the supporting seat (1), and the outer side of the inner sleeve (2) is rotatably connected with the inner side of the supporting seat (1);

the supporting pin (3) is inserted into the inner side of the inner sleeve (2) and is fixedly connected with the inner sleeve (2);

the supporting pin (3) comprises a cylindrical pin body (31) and a fixed disc (32), and the cylindrical pin body (31) is fixedly connected with the fixed disc (32);

the cylindrical pin body (31) is inserted into the inner side of the inner sleeve (2), the fixed disc (32) is in contact with the end face of the inner sleeve (2), and the fixed disc (32) is fixedly connected to the end part of the boring rod;

the end face, deviating from the supporting pin (3), of the supporting seat (1) is fixed on a chuck of the inner boring machine.

2. The tip device of a boring machine in a shell of a tube as claimed in claim 1, characterized in that a bearing (4) is arranged between the inner side of the support base (1) and the outer side of the inner sleeve (2), and the support base (1) and the inner sleeve (2) are rotationally connected through the bearing (4).

3. The in-shell boring machine nose device according to claim 1, characterized in that the end face of the support base (1) facing away from the support pin (3) is provided with a first bolt (5), the first bolt (5) being able to fix the support base (1) on an inner boring machine chuck.

4. The in-shell boring machine nose device of claim 1, characterized in that a second bolt (6) is provided on the fixed plate (32), the second bolt (6) being capable of fixing the fixed plate (32) with the end of the boring bar.

5. The tip device of the boring machine in the pipe shell as claimed in claim 2, characterized in that a limit nut (7), a limit block (8) and a third bolt (9) are respectively arranged on two sides of the bearing (4) in contact;

the limiting nut (7) is sleeved on the outer side of the end part of the inner sleeve (2) and is in threaded connection with the outer side of the inner sleeve (2);

the limiting block (8) is located on one side, deviating from the limiting nut (7), of the bearing (4), and the limiting block (8) is fixedly connected with the end face of the supporting seat (1) through the third bolt (9).