CN113478335B

CN113478335B - Pitch burnishing device

Info

Publication number: CN113478335B
Application number: CN202110798452.9A
Authority: CN
Inventors: 张海涛; 毕春利; 郭本银; 金春水
Original assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Current assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-09-20
Anticipated expiration: 2041-07-15
Also published as: CN113478335A

Abstract

The utility model belongs to optical element processing field provides an asphalt polishing device, including main shaft main part, rotating spindle, clamping structure, gasbag unit, eccentric motion unit and swing mechanism, the main shaft main part sets up rotating spindle's one end, clamping structure sets up on rotating spindle, the gasbag unit sets up the other end at rotating spindle, eccentric motion unit with the gasbag unit is connected, swing mechanism one end with press from both sides the clamping structure and be connected, the other end with the eccentric motion unit is connected. The utility model provides an asphalt polishing device realizes pitch dish translation through the combined action of pressing from both sides tight structure, swing mechanism, ball pivot mechanism and eccentric motion module.

Description

Pitch burnishing device

Technical Field

The application relates to the technical field of optical element processing, in particular to an asphalt polishing device.

Background

In the field of optical processing, pitch polishing is a classic polishing process, and the main effect of the polishing process is to reduce medium-high frequency roughness. For pitch polishing of aspherical optical elements, small tool heads (pitch disks) are generally used for polishing, which is different from the conventional spherical polishing method. The motion profile (resulting removal function) of the pitch disk plays a role in the pitch polishing process for aspheric surfaces. Common forms of exercise include: and the eccentric revolution is added with the rotation and the eccentric revolution. For aspheric optical elements with roughness requirements of deep sub-nanometers, the motion pattern has insignificant effect in the actual polishing process.

Disclosure of Invention

Based on this, this application can't reach the polishing effect of high-accuracy surface roughness to pitch polishing among the prior art, this application provides the burnishing device of controllable pitch polishing dish translation structure of pressure, reaches the rough index requirement in surperficial of dark sub-nanometer.

In order to solve the above technical problems, the present application provides an asphalt polishing apparatus, comprising a main shaft body, a rotating main shaft, a clamping structure, an air bag unit, an eccentric motion unit, and a swing mechanism,

the main shaft body is arranged at one end of the rotating main shaft, the clamping structure is arranged on the rotating main shaft, the air bag unit is arranged at the other end of the rotating main shaft, the eccentric motion unit is connected with the air bag unit, one end of the swing mechanism is connected with the clamping structure, and the other end of the swing mechanism is connected with the eccentric motion unit.

Preferably, the clamping structure comprises two semicircular metal sleeves with threaded holes.

Preferably, the air bag unit comprises a polishing head with an air bag, and the polishing head is connected to the rotating spindle through a hydraulic clamp.

Preferably, the eccentric moving unit is connected below the polishing head through a screw hole on a side surface of the polishing head facing the eccentric moving unit.

Preferably, the eccentric motion unit comprises a first element and a second element, an eccentric shaft is arranged on the first element, a cylindrical hole matched with the eccentric shaft is arranged on the second element, and the first element and the second element are connected through a bearing to form a revolute pair.

Preferably, the swing mechanism includes a pair of swing arms, each swing arm includes a first end connected to the clamping structure, the ends extend along the rotation main axis in the direction of the airbag unit and in the vertical direction away from the rotation main axis, and extend along the rotation main axis to form a first bending portion, a second bending portion, and a second end, and the second end is connected to the eccentric movement unit through a ball joint mechanism.

Preferably, an L-shaped element is arranged on the second element, and two second ends of the swing mechanism are connected through a right-angle fixing plate.

Preferably, one end of the spherical hinge mechanism is connected with the L-shaped element, and the other end of the spherical hinge mechanism is connected with the right-angle fixing plate of the swinging mechanism.

Preferably, the L-shaped member is coupled to the eccentric motion unit through a screw hole.

Preferably, the swing mechanism and the clamping structure are connected through a bearing to form a rotating pair.

The beneficial effect of this application:

the utility model provides an asphalt polishing device realizes pitch dish translation through the combined action of pressing from both sides tight structure, swing mechanism, ball pivot mechanism and eccentric motion module, and in addition, this application sets up the gasbag structure and has realized that the constancy of pressure is controllable.

Drawings

FIG. 1 is a schematic structural diagram of an asphalt polishing apparatus provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of an eccentric motion module according to an embodiment of the present application.

The meaning of the reference symbols in the drawings is:

1. a main shaft body; 2. a clamping structure; 3. rotating the main shaft; 4. an airbag unit;

5. an eccentric motion unit; 6. an L-shaped element; 7. a spherical hinge mechanism; 8. a swing mechanism;

9. a right-angle fixing plate; 5-1, a first element; 5-2 and a second element.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Example 1:

an asphalt polishing device comprises a main shaft body 1, a rotating main shaft 3, a clamping structure 2, an air bag unit 4, an eccentric motion unit 5 and a swing mechanism 8,

the main shaft body 1 is arranged at one end of the rotating main shaft 3, the clamping structure 2 is arranged on the rotating main shaft 3, the air bag unit 4 is arranged at the other end of the rotating main shaft 3, the eccentric motion unit 5 is connected with the air bag unit 4, one end of the swing mechanism 8 is connected with the clamping structure 2, and the other end of the swing mechanism is connected with the eccentric motion unit 5.

The clamping structure 2 comprises two semicircular metal sleeves with threaded holes, and is fastened through screws and fixedly sleeved on the rotating main shaft 3;

the air bag unit 4 comprises a polishing head with an air bag, the polishing head is connected to the rotary spindle 3 through a hydraulic clamp, and the air pressure in the air bag is controlled through an air pressure element of machine tool equipment.

The eccentric motion unit 5 is connected with the air bag unit 4, the eccentric motion unit 5 comprises a first element 5-1 and a second element 5-2, the first element 5-1 is connected with four threaded holes below the polishing head, an eccentric shaft is arranged on the first element 5-1, a cylindrical hole matched with the eccentric shaft is arranged on the second element 5-2, and the first element 5-1 and the second element 5-2 are connected through a bearing to form a rotating pair.

The swing mechanism 8 comprises a pair of swing arms, each swing arm comprises a first end connected with the clamping structure, the ends extend along the direction of the airbag unit along the rotating main shaft 3 and extend along the vertical direction far away from the rotating main shaft 3, and then extend along the direction of the rotating main shaft 3 to form a first bending part, a second bending part and a second end respectively, and the second end is connected with the eccentric movement unit 5 through the spherical hinge mechanism 7.

The second element 5-2 is provided with an L-shaped element 6, and two second ends of the swing mechanism 8 are connected through a right-angle fixing plate 9. The spherical hinge mechanism 7 is formed by connecting four spherical hinge bearings in a pairwise opposite mode into a whole. One end of the spherical hinge mechanism 7 is connected with the L-shaped element 6 through a screw, and the other end of the spherical hinge mechanism is connected with a right-angle fixing plate 9 of the swing mechanism 8 through a threaded hole. The L-shaped element 6 is connected with the eccentric motion module through a threaded hole.

The swing mechanism 8 is connected with the clamping structure 2 through a bearing to form a revolute pair.

The pitch burnishing device's of this application theory of operation:

in the working process of the asphalt polishing device, the air bag is inflated to keep a certain pressure, the rotating main shaft rotates at a certain speed to drive the polishing head of the air bag unit to rotate, the polishing head drives the first element in the eccentric motion unit to rotate, and the revolute pair of the first element and the second element enables the second element to achieve the purposes of translation and incapability of rotating under the combined action of the spherical hinge mechanism and the swing mechanism.

All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above examples only express the preferred embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An asphalt polishing device is characterized by comprising a main shaft body (1), a rotating main shaft (3), a clamping structure (2), an air bag unit (4), an eccentric motion unit (5) and a swing mechanism (8),

the main shaft body (1) is arranged at one end of the rotating main shaft (3), the clamping structure (2) is arranged on the rotating main shaft (3), the air bag unit (4) is arranged at the other end of the rotating main shaft (3), the eccentric movement unit (5) is connected with the air bag unit (4), one end of the swing mechanism (8) is connected with the clamping structure (2), and the other end of the swing mechanism is connected with the eccentric movement unit (5);

the air bag unit (4) comprises a polishing head with an air bag, the polishing head is connected to the rotating spindle (3) through a hydraulic clamp, and the pressure of air in the air bag is controlled through an air pressure element of machine tool equipment;

the eccentric motion unit (5) is connected below the polishing head and is connected with the polishing head through a threaded hole on the side surface of the polishing head facing the eccentric motion unit (5);

the eccentric motion unit (5) comprises a first element (5-1) and a second element (5-2), an eccentric shaft is arranged on the first element (5-1), a cylindrical hole matched with the eccentric shaft is arranged on the second element (5-2), and the first element (5-1) and the second element (5-2) are connected through a bearing to form a revolute pair;

the clamping structure (2) comprises two semicircular metal sleeves with threaded holes;

swing mechanism (8) include a pair of swing arm, the swing arm include with the first end that the clamping structure is connected, the tip along rotatory main shaft (3) to the direction of gasbag unit extends and extends along the vertical direction of keeping away from rotatory main shaft (3), again along the direction of rotatory main shaft (3) extends, forms first curved portion, second end respectively, the second end pass through ball pivot mechanism (7) with eccentric motion unit (5) are connected, ball pivot mechanism (7) are connected into whole by four ball pivot bearings pairwise opposite.

2. An asphalt polishing device according to claim 1, characterized in that an L-shaped element (6) is arranged on said second element (5-2), and the two second ends of said oscillating mechanism (8) are connected by a right-angle fixing plate.

3. An asphalt polishing device according to claim 2, characterized in that the spherical hinge mechanism (7) is connected with the L-shaped element (6) at one end and with the right-angle fixing plate of the swing mechanism (8) at the other end.

4. An asphalt polishing device according to claim 2, characterized in that said L-shaped element (6) is connected with said eccentric motion unit (5) by means of a threaded hole.

5. The asphalt polishing device according to claim 1, wherein the swing mechanism (8) is connected with the clamping structure (2) through a bearing to form a rotating pair.