CN219113595U

CN219113595U - High-precision deep hole grinding device

Info

Publication number: CN219113595U
Application number: CN202122682095.8U
Authority: CN
Inventors: 杨远圆; 杨碧荣
Original assignee: Wuxi Zhengyang Papermaking Machinery Co ltd
Current assignee: Wuxi Zhengyang Papermaking Machinery Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2023-06-02
Anticipated expiration: 2031-11-04

Abstract

The utility model discloses a high-precision deep hole grinding device which comprises a boring bar, wherein one end of the boring bar is arranged on a carriage capable of sliding on a lathe guide rail, the other end of the boring bar is fixedly provided with a bracket connecting plate, the end face of the bracket connecting plate is provided with a grinding head bracket, and the two ends of the grinding head bracket are provided with grinding head devices for grinding inner holes of workpieces.

Description

High-precision deep hole grinding device

Technical Field

The utility model relates to the field of deep hole polishing and grinding devices, in particular to a high-precision deep hole grinding device.

Background

The press roll is the main component of squeezing the device, the kind of press roll is many, the press section of old paper machine uses the platen roller more, along with the quick improvement of paper machine, begin to use the vacuum roll, bore full hole according to two helix on the stainless steel roller shell, also need carry out high accuracy to the inner wall of vacuum roll simultaneously and grind, because the specification of press roll is more, the size is different, be used for on the market at present to press the device of roller inner wall polishing grinding can not be fully suitable for, simultaneously to the polishing demand of inner wall more singleness, can't adjust according to actual use occasion, to these problems, this application has proposed a solution.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a high-precision deep hole grinding device which is applicable to deep hole workpieces with various inner diameters and can adjust polishing and grinding precision of the inner wall of a deep hole according to requirements.

The technical scheme is as follows: the utility model relates to a high-precision deep hole grinding device which comprises a boring bar, wherein one end of the boring bar is arranged on a carriage capable of sliding on a lathe guide rail, the other end of the boring bar is fixedly provided with a bracket connecting plate, the end face of the bracket connecting plate is provided with a grinding head bracket, two ends of the grinding head bracket are provided with grinding head devices, bearing seats are arranged in the grinding head devices, a grinding head shaft is arranged between the bearing seats, and a grinding head for grinding an inner hole of a workpiece is arranged on the grinding head shaft.

Preferably, the grinding head bracket comprises a cross arm, a vertical arm, an inner sleeve, an outer sleeve and a spring, wherein the cross arm is symmetrically arranged at two ends of a bracket connecting plate and is connected with the bracket connecting plate through the vertical arm, and the vertical arm is in sliding connection with the bracket connecting plate; an outer sleeve and an inner sleeve are arranged between the cross arms, the inner sleeve extends into the outer sleeve, a spring is arranged in the outer sleeve, one end of the spring is in contact with the cross arms fixedly connected with the outer sleeve, and the other end of the spring is connected with the end face of the inner sleeve extending into the outer sleeve.

Preferably, the vertical arm is provided with a screw for fixing the radial length after the radial position of the grinding head bracket is determined, and the screw penetrates through the vertical arm to be connected with the bracket connecting plate.

Preferably, the grinding head device comprises a grinding head bearing seat, bearing seats, a grinding head shaft and a grinding head, wherein the grinding head bearing seat is fixed on the end face of a cross arm facing to one side of an inner hole wall of a workpiece to be processed, four sections of waist-shaped holes are formed in the grinding head bearing seat, an extension line of each waist-shaped hole and each waist-shaped hole on the end face of the grinding head bearing seat forms a circle, two bearing seats are arranged on the grinding head bearing seat, two ends of the bottom of each bearing seat are respectively connected with any two sections of adjacent waist-shaped holes in a sliding mode, a unique bearing seat is arranged in each waist-shaped hole, a grinding head shaft is arranged between the bearing seats, and a grinding head is arranged on each grinding head shaft.

Preferably, the grinding head is nested on the grinding head shaft, and the grinding head is rotationally connected with the grinding head shaft.

Preferably, the diameter of the circle formed by the extension line of the waist-shaped hole and the waist-shaped hole on the end face of the grinding head bearing seat is the same as the length of the grinding head shaft.

The beneficial effects are that: according to the polishing device, the radial length of the grinding head support is effectively controlled through the spring in the grinding head support, deep holes with various inner diameters can be matched for polishing and grinding, meanwhile, the position of the bearing seat on the grinding head bearing seat can be adjusted through the arrangement of the waist-shaped holes in the grinding head device, the included angle between the grinding head axis and the workpiece axis is adjusted, the friction force between the grinding head and the inner wall of the workpiece is adjusted through the size of the included angle, and accordingly polishing and grinding precision is controlled according to requirements.

Drawings

FIG. 1 is a side view of the present application;

FIG. 2 is a perspective view of a grinding head assembly of the present application;

FIG. 3 is a top view of the grinding head assembly of the present application;

Detailed Description

As shown in fig. 1-3, in this embodiment, the boring bar 1 is installed on a carriage, the carriage is installed on a lathe guide rail, the boring bar 1 is controlled to perform feeding adjustment along the axial direction of a workpiece 10 to be processed, a support connecting plate 2 is fixedly installed on a section of the boring bar 1 extending into the workpiece 10 to be processed, a grinding head support is arranged on the end face of the support connecting plate 2, and grinding head devices 3 are fixedly arranged at two ends of the grinding head support.

In the embodiment, the grinding head bracket comprises a cross arm 4, a vertical arm 5, an inner sleeve 6, an outer sleeve 7 and a spring 8, wherein the cross arm 4 is symmetrically arranged at two ends of a bracket connecting plate 2 and is connected with the bracket connecting plate 2 through the vertical arm 5, and the vertical arm 5 is in sliding connection with the bracket connecting plate 2; an outer sleeve 7 and an inner sleeve 6 are arranged between the cross arms 4, one end of the inner sleeve 6 is fixedly connected with the cross arms 4, the other end of the inner sleeve extends into the outer sleeve 7, a spring 8 is arranged in the outer sleeve 7, one end of the spring 8 is in contact with the cross arms 4 fixedly connected with the outer sleeve 7, the other end of the spring 8 is connected with the end face of the inner sleeve 6 extending into the outer sleeve 7, reverse force can be applied to the inner sleeve 6 through the elastic force of the spring 8, so that the cross arms 4 are jacked up, the cross arms 4 are controlled to be positioned in the radial direction of the support connecting plate 2, and finally, after the required grinding head support length is determined according to the inner diameter of a workpiece to be machined 10, the vertical arms 5 are fixedly connected with the support connecting plate 2 through screws 9, and the radial length control of the grinding head support is completed.

In this embodiment, the grinding head device 3 includes a grinding head bearing seat 34, a bearing seat 31, a grinding head shaft 32 and a grinding head 33, wherein the grinding head bearing seat 34 is fixed on an end face of the cross arm 4 facing to one side of an inner hole wall of the workpiece 10 to be processed, four sections of waist-shaped holes 35 are arranged on the grinding head bearing seat 34, the waist-shaped holes 35 and an extension line of the waist-shaped holes 35 on the end face of the grinding head bearing seat 34 form a circle, two bearing seats 31 are arranged on the grinding head bearing seat 34, two ends of the bottom of the bearing seat 31 are respectively connected with any two sections of adjacent waist-shaped holes 35 in a sliding manner, and a unique bearing seat 31 is arranged in any section of waist-shaped hole 35; a grinding head shaft 32 is arranged between the two bearing seats 31, a grinding head 33 is arranged on the grinding head shaft 32, the grinding head 33 is nested on the grinding head shaft 32, and the grinding head 33 is rotatably connected with the grinding head shaft 32.

In this embodiment, the diameter of the circle formed by the waist-shaped hole 35 and the extension line of the waist-shaped hole 35 on the end face of the grinding head bearing seat 34 is the same as the length of the grinding head shaft 32, so that the included angle between the axis of the grinding head 33 and the axis of the workpiece 10 to be processed is convenient to adjust, when the included angle between the axis of the grinding head 33 and the axis of the workpiece 10 to be processed is 0, the workpiece 10 to be processed rotates, the grinding head 33 contacts with the inner wall of the workpiece 10 to be processed, and is driven to rotate by the workpiece 10 to be processed, so that the grinding effect cannot be achieved; when the included angle is larger, the larger the friction force between the grinding head 33 and the inner wall of the workpiece 10 to be processed is, the larger the grinding acting force of the grinding head 33 is, so that the included angle between the axis of the grinding head 33 and the axis of the workpiece 10 to be processed can be adjusted through the waist-shaped hole 35, the grinding force is controlled, and the required grinding precision is precisely controlled.

Claims

1. The utility model provides a high accuracy deep hole grinder, is including boring bar (1), its characterized in that: the boring bar is characterized in that one end of the boring bar (1) is arranged on a carriage capable of sliding on a lathe guide rail, the other end of the boring bar is fixedly provided with a support connecting plate (2), a grinding head support is arranged on the end face of the support connecting plate (2), grinding head devices (3) are arranged at two ends of the grinding head support, bearing blocks (31) are arranged in the grinding head devices (3), a grinding head shaft (32) is arranged between the bearing blocks (31), and a grinding head (33) for grinding an inner hole of a workpiece is arranged on the grinding head shaft (32).

2. The high precision deep hole grinding apparatus of claim 1, wherein: the grinding head bracket comprises a cross arm (4), a vertical arm (5), an inner sleeve (6), an outer sleeve (7) and a spring (8), wherein the cross arm (4) is symmetrically arranged at two ends of a bracket connecting plate (2) and is connected with the bracket connecting plate (2) through the vertical arm (5), and the vertical arm (5) is in sliding connection with the bracket connecting plate (2); an outer sleeve (7) and an inner sleeve (6) are arranged between the cross arms (4), the inner sleeve (6) stretches into the outer sleeve (7), a spring (8) is arranged in the outer sleeve (7), one end of the spring (8) is in contact with the cross arms (4) fixedly connected with the outer sleeve (7), and the other end of the spring is connected with the end face of the inner sleeve (6) stretching into the outer sleeve (7).

3. The high precision deep hole grinding apparatus of claim 2, wherein: the vertical arm (5) is provided with a screw (9) for fixing the radial length after the radial position of the grinding head bracket is determined, and the screw (9) penetrates through the vertical arm (5) to be connected with the bracket connecting plate (2).

4. The high precision deep hole grinding apparatus of claim 1, wherein: the grinding head device (3) comprises a grinding head bearing seat (34), a bearing seat (31), a grinding head shaft (32) and a grinding head (33), wherein the grinding head bearing seat (34) is fixed on the end face of a cross arm (4) facing to one side of an inner hole wall of a workpiece (10) to be processed, four sections of waist-shaped holes (35) are formed in the grinding head bearing seat (34), the waist-shaped holes (35) and the extension lines of the waist-shaped holes (35) on the end face of the grinding head bearing seat (34) form a circle, two bearing seats (31) are arranged on the grinding head bearing seat (34), two ends of the bottom of each bearing seat (31) are respectively connected with any two sections of adjacent waist-shaped holes (35) in a sliding mode, a unique bearing seat (31) is arranged in each waist-shaped hole (35), a grinding head shaft (32) is arranged between the bearing seats (31), and a grinding head (33) is arranged on each grinding head shaft (32).

5. A high precision deep hole grinding apparatus in accordance with claim 3, wherein: the grinding head (33) is nested on the grinding head shaft (32), and the grinding head (33) is rotationally connected with the grinding head shaft (32).

6. The high-precision deep hole grinding apparatus according to claim 4, wherein: the diameter of a circle formed by the extension line of the waist-shaped hole (35) and the waist-shaped hole (35) on the end surface of the grinding head bearing seat (34) is the same as the length of the grinding head shaft (32).