CN103894916B - A kind of circular cone burnishing device - Google Patents

Abstract

The present invention relates to a kind of circular cone burnishing device, be applicable to the lapping and polishing processing of the surface of the work such as optical element, noncrystal membrane substrate, it comprises abrasive disk, the first motor, the second motor, outside framework and workpiece movable mechanism, abrasive disk is three-dimensional conical abrasive disk, and the abrasive grain on abrasive disk surface changes along with conical inclined surface; The axle center of abrasive disk connects the first motor by shaft coupling, and the first motor is fixed on base; Base is connected by thrust roller bearing bottom abrasive disk; Outside framework is conical frame, and outside framework is fixed on base; Outside framework is provided with the line slideway parallel with abrasive disk inclined-plane; One end of workpiece movable mechanism and abrasive disk are fitted, and the other end of workpiece movable mechanism connects the line slideway on outside framework.The present invention is simple and compact for structure, and cost is lower, and automaticity is high, by the abrasive grain functionally graded design of conical abrasive disk, can carry out the processing in various degree of the throwing from corase grind to essence to workpiece respectively.

Description

A conical polishing device

technical field

The invention relates to a conical polishing device, which is suitable for grinding and polishing the surfaces of workpieces such as optical elements and amorphous film substrates.

Background technique

Grinding is the use of abrasive particles coated or pressed on the grinding tool to finish the processing surface (such as cutting) through the relative movement of the grinding tool and the workpiece under a certain pressure. Grinding can be used to process various metal and non-metal materials. The processed surface shapes include plane, inner and outer cylindrical and conical surfaces, convex and concave spherical surfaces, threads, tooth surfaces and other profiles. The processing accuracy can reach IT5~01, and the surface roughness can reach Ra0.63~0.01 microns.

Polishing refers to the use of mechanical, chemical or electrochemical action to reduce the surface roughness of the workpiece to obtain a bright and smooth surface. Modification of the workpiece surface using flexible polishing tools and abrasive particles or other polishing media. Polishing does not improve the dimensional accuracy or geometric shape accuracy of the workpiece, but is aimed at obtaining a smooth surface or mirror gloss, and is sometimes used to eliminate gloss (matting).

When we need to carry out finishing processing on the OEM workpiece to improve the surface roughness of the workpiece or strengthen its surface, grinding and polishing are usually used at the same time. The traditional finishing system using a grinding disc or a polishing disc separates the grinding and polishing processes, so that the system needs to replace the grinding disc with a polishing disc when transitioning from grinding to polishing, making it difficult to improve processing efficiency. Even if it is a single grinding process, a grinding disc with a single abrasive grain size cannot fully achieve the required surface roughness of the workpiece or requires a long processing time. Moreover, in the traditional grinding and polishing system, it is necessary to artificially add weights or the gravity of the workpiece and the device supporting the workpiece to determine the pressure applied to the surface of the workpiece and the surface of the grinding disc (or polishing disc), which makes the application The pressure cannot be dynamically adjusted according to the processing requirements, and the pressure lower than the gravity of the workpiece and the device supporting the workpiece cannot be obtained. After changing the grinding disc or polishing disc, it is necessary to add or replace the weight. Because the quality of the weight is fixed, it is very difficult It is difficult to realize the continuous change of the applied pressure, which affects the processing quality, and is greatly affected by human factors, so it is difficult to realize automation.

Contents of the invention

In order to overcome the disadvantages of low processing efficiency, low degree of automation, and separation of polishing and grinding processing in the prior art, the present invention provides a machine that can integrate rough grinding, fine grinding, rough polishing and fine polishing. Cone polishing device.

In order to achieve the above object, the technical solution adopted in the present invention is: a conical polishing device, comprising a grinding disc, a first motor, a second motor, an outer frame and a workpiece moving mechanism, the grinding disc is a three-dimensional conical grinding disc, The abrasive particle size on the surface of the grinding disc changes with the conical slope, and the closer to the top of the cone, the higher the abrasive particle size; the axis of the grinding disc is connected to the first motor through a coupling, and the first motor is fixed on the base; The bottom of the grinding disc is connected to the base through a thrust roller bearing;

The outer frame is a conical frame, and the outer frame is fixed on the base; the outer frame is provided with a linear guide rail parallel to the inclined surface of the grinding disc;

One end of the workpiece moving mechanism is attached to the grinding disc, and the other end of the workpiece moving mechanism is connected to the linear guide rail on the outer frame, and the outer frame is also provided with a belt transmission mechanism parallel to the linear guide rail. The mechanism drives the workpiece moving mechanism to move upward along the inclined surface of the grinding disc;

The workpiece moving mechanism includes a cylinder, a support base, a workpiece mounting head and an impeller. One end of the cylinder is connected to the linear guide rail on the outer frame through a straight rod, and the straight rod is provided with rollers, and the rollers are connected to the Belt transmission mechanism; the piston rod of the cylinder passes through the support seat and is connected with one end of the workpiece installation head through a roller bearing, and the side wall of the workpiece installation head is connected to the inner side wall of the support seat through the bearing; the bottom of the workpiece installation head is provided with There are at least two workpiece mounting holes, which are evenly distributed on the bottom of the workpiece mounting head; the workpiece mounting head is also provided with an impeller, and the side wall of the cylinder is provided with a liquid spray pipe. The spray pipe is facing the impeller.

The technical idea of the present invention is: the grinding disc is designed to be conical, and a conical outer frame is provided on the outside of the conical grinding disc, the conical grinding disc is connected with the first motor fixed on the base, and driven by the first motor Rotate, but the conical outer frame will not rotate, the workpiece moving mechanism is perpendicular to the conical surface of the conical grinding disc, and one end of the workpiece moving mechanism is connected to the conical outer frame, and will move upward along the direction of the conical slope under the belt drive , the abrasive grain size of the conical grinding disc changes with the height of the conical grinding disc, while the angular velocity of the conical grinding disc remains unchanged, but the higher the line speed is, the higher the abrasive grain size is, the finer the processing of the workpiece will be . There is an impeller on the workpiece moving mechanism, which will rotate under the drive of the liquid ejected from the spray pipe, thereby driving the rotation of the workpiece mounting head, and the rotation of the workpiece mounting head drives the circular motion of the workpiece, and the circular motion of the conical outer frame Combined, the disordered movement of the workpiece and the grinding disc is formed, thereby improving the machining accuracy; the cylinder provides the grinding disc with the force required for processing.

Compared with the prior art, the present invention has the following advantages: the present invention has simple and compact structure, low cost and high degree of automation. Through the gradient design of the abrasive particle size of the conical grinding disc, the workpiece can be respectively coarsely ground to finely polished. Different degrees of processing; the grinding disc rotates, but the outer frame does not rotate, so that the workpiece moving mechanism and the grinding disc rotate relatively, and at the same time, the workpiece will move in a circular motion on the belt of the impeller, and the surface to be processed can be realized under the joint action of the two The disordered processing texture improves the processing efficiency and quality.

Description of drawings

Fig. 1 is a schematic structural view of a conical polishing device of the present invention.

Fig. 2 is a partially enlarged view of the workpiece moving mechanism of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

In conjunction with Fig. 1 and Fig. 2, a kind of conical polishing device comprises grinding disc 1, first motor 5, second motor 6, outer frame 3 and workpiece moving mechanism 4, grinding disc 1 is a three-dimensional conical grinding disc, grinding disc 1 The abrasive particle size on the surface changes with the conical slope, and the closer to the top of the cone, the higher the abrasive particle size; the axis of the grinding disc 1 is connected to the first motor 5 through a coupling, and the first motor 5 is fixed on the base; the bottom of the grinding disc 1 passes through Thrust roller bearing 7 connects base.

The outer frame 2 is a conical frame, and the outer frame 2 is fixed on the base; the outer frame 2 is provided with a linear guide rail parallel to the inclined surface of the grinding disc 1 .

One end of the workpiece moving mechanism 4 is attached to the grinding disc 1, and the other end of the workpiece moving mechanism 4 is connected to the linear guide rail on the outer frame 2. The outer frame 2 is also provided with a belt transmission mechanism parallel to the linear guide rail, and the belt transmission mechanism drives the workpiece. The moving mechanism 4 moves upward along the inclined surface of the grinding disc;

The workpiece moving mechanism includes a cylinder 8, a support seat 9, a workpiece mounting head 10 and an impeller 11. One end of the cylinder 8 is connected to the linear guide rail on the outer frame 2 through a straight rod 13. The straight rod 13 is provided with rollers, and the rollers are connected to the outer frame 2. belt transmission mechanism; the piston rod of the cylinder 8 passes through the support seat 9 and one end of the workpiece mounting head 10 is connected by a roller bearing, and the side wall of the workpiece mounting head 10 is connected to the inner side wall of the support seat 9 through the bearing; the workpiece mounting head 10 The bottom is provided with workpiece installation holes, and there are at least two workpiece installation holes, which are evenly distributed on the bottom of the workpiece installation head; The spray pipe 12 on the top is facing the impeller 11.

It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and not to limit the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention shall fall within the protection scope of the present invention. Furthermore, it is intended that the appended claims of the present invention embrace all changes and modifications that come within the scope and metesques of the appended claims, or equivalents of such scope and metes and bounds.

Claims (1)

1. a circular cone burnishing device, it is characterized in that: comprise abrasive disk, the first motor, the second motor, outside framework and workpiece movable mechanism, described abrasive disk is three-dimensional conical abrasive disk, the abrasive grain on described abrasive disk surface changes along with conical inclined surface, higher the closer to cone tip abrasive grain; The axle center of described abrasive disk connects the first motor by shaft coupling, and described first motor is fixed on base; Base is connected by thrust roller bearing bottom described abrasive disk;

Described outside framework is conical frame, and described outside framework is fixed on base; Described outside framework is provided with the line slideway parallel with abrasive disk inclined-plane;

One end and the abrasive disk of described workpiece movable mechanism are fitted, the other end of described workpiece movable mechanism connects the line slideway on outside framework, described outside framework is also provided with the belt transmission agency parallel with line slideway, and described belt transmission agency drives workpiece movable mechanism to move upward along abrasive disk inclined-plane;

Described workpiece movable mechanism comprises cylinder, supporting seat, trade union college head and impeller, and one end of described cylinder connects the line slideway on outside framework by straight-bar, described straight-bar is provided with roller, and described roller connects the belt transmission agency on outside framework; The piston rod of described cylinder is connected by roller bearing with one end of trade union college head through supporting seat, and the sidewall of trade union college head passes through the madial wall of bearing connecting support seat; The bottom of described trade union college head is provided with workpiece installing hole, and described workpiece installing hole has two at least, is evenly distributed on the bottom of trade union college head; Described trade union college head is also provided with impeller, and the sidewall of cylinder is provided with sparge pipe, and the sparge pipe on described cylinder faces impeller.