CN110405622B - Arc swing plane grinding device - Google Patents

Abstract

The utility model provides a novel circular arc swing plane grinds device, including motor support, motor I, rigid coupling, lower arc guide rail, cylindrical gear I, cylindrical gear II, the bull's eye wheel, axle I, the gear mount, lower swing arm, go up the swing arm, go up arc guide rail, fixed riser, the motor board, the bent axle, bevel gear II, motor II, the plum blossom shaft coupling, axle II, cylindrical gear III, cylindrical gear IV, axle III, axle IV, bevel gear I, the universal joint, fixed diaphragm, axle V, the chuck, inserted bar and workpiece dish, through mechanical mechanism, form irrational number's rotation through a motor drive workpiece dish, another motor drives the swing motion that the workpiece dish is variable swing angle simultaneously, make the workpiece dish realize rotation and swing two motions in grinding the in-process, realize grinding the not closed of track line, increase the distribution range of track line at the grinding dish. The invention improves the precision and efficiency of plane grinding.

Description

Arc swing plane grinding device

Technical Field

The invention relates to a plane grinding mechanism, in particular to a new type of grinding equipment composed of two motors, four cylindrical gears, two bevel gears, two groups of circular arc guide rails, etc., belonging to the technical field of plane grinding processing.

Background technique

The kinematics of plane grinding is an important theoretical basis for high-precision shape control. As the size of the crystal substrate increases, the control of grinding uniformity becomes more and more difficult, and the uniformity of the grinding trajectory has become a research hotspot. The kinematic principle between the grinding disc and the workpiece is one of the main factors restricting the accuracy of plane grinding, that is, the plane formation mechanism of the grinding surface, which mainly includes the design of the drive mode, the processing parameters and the flatness finishing method of the grinding disc.

During the surface grinding process, on the one hand, it is necessary to ensure that the material on the workpiece surface is evenly removed to obtain a good flatness; on the other hand, it is necessary to ensure that the grinding tool is evenly worn. The purpose is to reduce the grinding disc dressing time, improve the efficiency of the entire processing process, and more importantly, to reduce the fluctuation of the grinding disc surface accuracy during the processing process to ensure the acquisition of a high-precision processing surface.

The common feature of the grinding process trajectory at present is that as the processing time goes by, the grinding process trajectory is closed, which means that the abrasive particles will repeat their movement trajectory over and over again within a certain period of time. At the same time, considering that during the grinding process, the inner and outer linear speeds of the grinding disc are different, the wear is inconsistent, which will cause the flatness of the grinding disc to decrease, resulting in concave or convex errors. The "copy" error during grinding, that is, during the processing, the error of the grinding disc will affect the surface grinding quality of the workpiece.

The speed ratio between the grinding disc and the workpiece disc in plane grinding is of great significance for workpiece processing. Numerical simulation studies have found that when the speed ratio is an irrational number, an unclosed processing curve can be obtained. Adjusting the instantaneous position of the workpiece relative to the grinding disc makes the movement of the workpiece as evenly distributed as possible on the surface of the grinding disc, thereby effectively improving the wear uniformity of the grinding disc. However, the speed ratio adjustment of existing plane grinding mechanisms is a single rational number, and less attention is paid to the uniform wear of the grinding disc.

Summary of the invention

In order to overcome the shortcomings of low precision and low efficiency of existing plane grinding mechanisms, the present invention provides a novel arc swing plane grinding device which improves the precision and efficiency of plane grinding.

The present invention is achieved through the following technical solutions:

A novel arc swing plane grinding device, the device comprises a motor bracket, a motor I, a rigid coupling, a lower arc guide rail, a cylindrical gear I, a cylindrical gear II, a bull's eye wheel, a shaft I, a gear fixing frame, a lower swing arm, an upper swing arm, an upper arc guide rail, a fixed vertical plate, a motor plate, a bent shaft, a bevel gear II, a motor II, a plum coupling, a shaft II, a cylindrical gear III, a cylindrical gear IV, a shaft III, a shaft IV, a bevel gear I, a universal joint, a fixed horizontal plate, a shaft V, a chuck, a plunger and a workpiece plate;

The motor I is fixedly mounted on the motor bracket, the motor shaft is directly connected to the cylindrical gear I through a rigid coupling, and the cylindrical gear I is fixedly mounted on the upper end of the motor shaft; the cylindrical gear II is fixedly mounted on the shaft I and meshes with the cylindrical gear I; the cylindrical fixed shaft I is mounted on the gear fixing frame through two pairs of upper and lower deep groove ball bearings; the upper swing arm and the lower swing arm are fixedly mounted on the shaft I through shaft end retaining rings and bolts, and are fixedly mounted on the fixed vertical plate; the bull's eye wheel is fixedly connected to the lower swing arm and is in tangential contact with the lower arc guide rail;

The motor II is fixedly mounted on the motor plate, and the upper end of the shaft II is connected to the output shaft of the motor II through a plum blossom coupling; the cylindrical gear III is connected to the shaft II through a key, and its lower side is fixedly mounted on the shaft II through a shaft end retaining ring and bolts. The cylindrical gear IV is mounted on the shaft III through an internal deep groove ball bearing and meshes with the cylindrical gear IV. The upper end of the bent shaft is fixedly connected to the hub of the cylindrical gear IV through welding, and the bevel gear I is connected to the shaft III through an internal deep groove ball bearing, and its lower part is fixed through a bearing retaining ring and bolts; the bevel gear II is mounted on the lower part of the bent shaft through a deep groove ball bearing and meshes with the bevel gear I; the bevel gear I, bevel gear II and the bent shaft form a planetary gear system, and the bevel gear II performs planetary motion driven by the bent shaft through meshing with the bevel gear I; the shaft The upper end of Ⅳ is fixedly connected to the bevel gear Ⅱ through a flange, and its lower end is connected to the upper end of the universal joint; the upper end of the shaft V is fixedly connected to the lower part of the universal joint, and two fixed horizontal plates are installed on the shaft V through deep groove ball bearings and fixedly connected to the fixed vertical plate; the fixed vertical plate is also fixedly connected to the motor plate; the chuck is fixedly connected to the shaft V through a key connection, and the lower part of the shaft V is fixed by a shaft end retaining ring and bolts; the insertion rod is fixedly connected to the chuck through its thread, and its lower part is sleeved in the corresponding hole of the workpiece disk, and the workpiece disk and the grinding disk are in contact

Furthermore, six bull's eye wheels are mounted on the motor plate and are installed in tangential contact with the upper arc-shaped guide rail.

Furthermore, the axis angle Σ of the oblique meshing of the bevel gear I and the bevel gear II is 60°, and the axes of the bevel gear II, the lower part of the universal joint, and the shaft V are in the same straight line.

Furthermore, the axis center of the cylindrical gear II is 445 mm away from the center of the grinding disc, and the axis is on the center line of the grinder.

Furthermore, the fixed vertical plate and the upper swing arm, the lower swing arm, the fixed horizontal plate, and the motor plate are all fixedly connected by screws, ensuring that the relative position of the axis V with respect to the axis III remains unchanged, the overall rotation structure remains stable, and the rotation speed output of the workpiece disk is ensured.

Furthermore, when the universal joint is installed, ensure that the shaft angles at the upper and lower ends are equal.

Furthermore, the lower arc-shaped guide rail, the upper arc-shaped guide rail and the aluminum profile are fixedly connected, and the aluminum profile and the grinder are fixedly connected to form a whole.

The present invention uses a reasonable mechanical mechanism, in which a motor drives the workpiece disc to form an irrational rotation, and at the same time another motor drives the workpiece disc to swing with a variable swing angle, so that the workpiece disc can realize both rotation and swing during the grinding process, realize the non-closure of the grinding trajectory line, and increase the distribution range of the trajectory line on the grinding disc.

The beneficial effects of the invention are as follows: 1. The transmission of the workpiece disk of the present invention uses an insert rod to connect the workpiece disk, which effectively adjusts the height of the workpiece, realizes the effectiveness of the transmission, and ensures the realization of the unreasonable rotation speed of the workpiece disk. 2. The upper and lower sets of arc tracks of the present invention play a guiding role and a certain fixing role for the swinging motion, and the stability and accuracy of the swing are guaranteed by the bull's eye wheel. 3. The swing and rotation structure of the present invention is fixed by a rocker arm, a fixed vertical plate and a fixed horizontal plate, which realizes the overall fixation and swing of the mechanism and effectively realizes the combination of the two movements. 3. The workpiece disk rotation structure of the present invention has accurate transmission, no noise, low production cost, higher grinding accuracy and efficiency, and solves the problem of trajectory closure from the principle of grinding processing motion. 4. The arc swing structure of the present invention is simple and has stable transmission, which realizes uniform wear of the grinding disk, which is of great significance for improving the grinding accuracy of the workpiece.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an overall structural diagram of the present invention.

FIG. 2 is a structural diagram of the main components of the present invention.

FIG3 is a cross-sectional view of a partial structure of the present invention, wherein (a) is a bull's eye wheel, (b) is axis II, and (c) is axis IV.

In Figure 2, 1, motor bracket, 2, motor I, 3, rigid coupling, 4, lower arc guide rail, 5, cylindrical gear I, 6, cylindrical gear II, 7, bull's eye wheel, 8, shaft I, 9, lower swing arm, 10, gear fixing frame, 11, upper swing arm, 12, upper arc guide rail, 13, fixed vertical plate, 14, motor plate, 15, bent shaft, 16, bevel gear II, 17, motor II, 18, plum blossom coupling, 19, shaft II, 20, cylindrical gear III, 21, cylindrical gear IV, 22, shaft III, 23, shaft IV, 24, bevel gear I, 25, universal joint, 26, fixed horizontal plate, 27, shaft V, 28, chuck, 29, plunger, 30, workpiece disk, 31, grinding disk.

The number of teeth of each gear is cylindrical gear I z1=20, cylindrical gear II z2=40, cylindrical gear III z3=20, cylindrical gear IV z4=40, bevel gear I and bevel gear II z1=z2=30.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Referring to Figures 1 to 3, a novel arc swing plane grinding device includes a motor bracket, a motor I, a rigid coupling, a lower arc guide rail, a cylindrical gear I, a cylindrical gear II, a bull's eye wheel, a shaft I, a gear fixing frame, a lower swing arm, an upper swing arm, an upper arc guide rail, a fixed vertical plate, a motor plate, a bent shaft, a bevel gear II, a motor II, a plum blossom coupling, a shaft II, a cylindrical gear III, a cylindrical gear IV, a shaft III, a shaft IV, a bevel gear I, a universal joint, a fixed horizontal plate, a shaft V, a chuck, a plunger and a workpiece disk.

The motor I2 is fixedly mounted on the motor bracket 1, and the motor shaft is directly connected to the cylindrical gear I5 through a rigid coupling 3, and the cylindrical gear I5 is fixedly mounted on the upper end of the motor shaft; the cylindrical gear II6 is fixedly mounted on the shaft I8 and meshes with the cylindrical gear I5; the cylindrical fixed shaft I8 is mounted on the gear fixing frame 10 through two pairs of upper and lower deep groove ball bearings; the upper swing arm 11 and the lower swing arm 9 are fixedly mounted on the shaft I8 through shaft end retaining rings and bolts, and are fixedly mounted on the fixed vertical plate 13 through screws; the bull's eye wheel 7 is fixedly connected to the lower swing arm 9, and is in tangential contact with the lower arc guide rail 4.

The motor II 17 is fixedly mounted on the motor plate, and the upper end of the shaft II 19 is connected to the output shaft of the motor II 17 through a plum blossom coupling 18; the cylindrical gear III 20 is connected to the shaft II 19 through a key, and its lower side is fixedly mounted on the shaft II 19 through a shaft end retaining ring and bolts. The cylindrical gear IV 21 is mounted on the shaft III 22 through an internal deep groove ball bearing and meshes with the cylindrical gear IV 21. The upper end of the bent shaft 15 is fixedly connected to the hub of the cylindrical gear IV 21 through welding, and the bevel gear I 24 is connected to the shaft III 22 through an internal deep groove ball bearing, and its lower part is fixed through a bearing retaining ring and bolts; the bevel gear II 16 is mounted on the lower part of the bent shaft 15 through a deep groove ball bearing and meshes with the bevel gear I 24; the bevel gear I 24, bevel gear II 16 and the bent shaft form a planetary gear system, and the bevel gear II 16 performs planetary motion driven by the bent shaft 15 through meshing with the bevel gear I 24; the upper end of the shaft IV 23 is mounted through a The flange is fixedly connected to the bevel gear II 16, and its lower end is connected to the upper end of the universal joint 25; the upper end of the shaft V 27 is fixedly connected to the lower part of the universal joint 25, and the two fixed horizontal plates 26 are installed on the shaft V 27 through deep groove ball bearings, and are fixedly connected to the fixed vertical plate 13 through screws; the fixed vertical plate 13 is also fixedly connected to the motor plate 14 through screws; the chuck 28 is fixedly connected to the shaft V 27 through a key connection, and the lower part of the shaft V 27 is fixed by a shaft end retaining ring and bolts; the insert rod 29 is fixedly connected to the chuck 28 through its thread, and its lower part is sleeved in the corresponding hole of the workpiece disk 30, and the workpiece disk 30 is in contact with the grinding disk 31.

Furthermore, six bull's eye wheels 7 are mounted on the motor plate 17 and are in tangential contact with the upper arc-shaped guide rail 12 .

Furthermore, the bevel gear I 24 and the bevel gear II 16 are in oblique meshing with each other at an axial angle Σ=60°, and the axes of the bevel gear II 16, the lower part of the universal joint 25, and the shaft V 27 are in the same straight line.

Furthermore, the axis center of the cylindrical gear II 6 is 445 mm away from the center of the grinding disc 31, and the axis is on the center line of the grinder.

Furthermore, the fixed vertical plate 13, the upper swing arm 11, the lower swing arm 9, the fixed horizontal plate 26, and the motor plate 14 are all fixedly connected by screws, ensuring that the relative position of the shaft V27 relative to the shaft III22 remains unchanged, the overall rotation structure remains stable, and the rotation speed output of the workpiece disk is ensured.

Furthermore, when the universal joint 25 is installed, ensure that the shaft angles at the upper and lower ends are equal.

Furthermore, the lower arc guide rail 4, the upper arc guide rail 12 and the aluminum profile are fixedly connected, and the aluminum profile and the grinder are fixedly connected to form a whole.

The working process of the present invention is:

In the first part, motor Ⅰ2 inputs a signal and transmits power to cylindrical gear Ⅰ5 through the rigid coupling 3. Due to the meshing action of cylindrical gear Ⅰ5 and cylindrical gear Ⅱ6, cylindrical gear Ⅱ6 is driven to rotate, and cylindrical gear Ⅱ6 transmits power to shaft Ⅰ8. The upper rocker arm 11 and the lower rocker arm 9 fixed on shaft Ⅰ8 drive the fixed vertical plate 13 to swing, thereby driving the bull's eye wheel on the motor plate 14 to swing along the upper arc guide rail 12, and the bull's eye wheel 7 on the lower rocker arm 9 swings along the lower arc guide rail 4, thereby driving the workpiece disk to swing.

In the second part, the motor II 17 inputs the signal and transmits the power to the cylindrical gear III 20 through the plum blossom coupling 18. Due to the meshing of the cylindrical gear III 20 and the cylindrical gear IV 21, the crankshaft is driven to rotate around the axis of shaft III 22. The bevel gear II 16 meshes with the bevel gear I 24 and drives the bent shaft to perform planetary motion, and transmits the rotation speed to the shaft V 27 at a constant speed through the universal joint 25, thereby driving the rotation of the chuck 28, and then transmits the motion to the workpiece disk 30 through the insertion rod 29 to complete the rotation of the workpiece.

The two motors work together to enable the workpiece disc 30 to perform a smooth swinging motion while achieving self-rotation. This mode improves the processing accuracy and processing efficiency of single-sided plane grinding.

The above embodiments are only preferred embodiments of the present invention and are not limitations of the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims (2)

1. A circular arc swing plane grinding device, characterized in that: the device includes a motor bracket, a motor I, a rigid coupling, a lower arc guide rail, a cylindrical gear I, a cylindrical gear II, a bull's eye wheel, a shaft I, a gear fixing frame, a lower swing arm, an upper swing arm, an upper arc guide rail, a fixed vertical plate, a motor plate, a bent shaft, a bevel gear II, a motor II, a plum coupling, a shaft II, a cylindrical gear III, a cylindrical gear IV, a shaft III, a shaft IV, a bevel gear I, a universal joint, a fixed horizontal plate, a shaft V, a chuck, a plunger and a workpiece disk; The motor I is fixedly mounted on the motor bracket, the motor shaft is directly connected to the cylindrical gear I through a rigid coupling, and the cylindrical gear I is fixedly mounted on the upper end of the motor shaft; the cylindrical gear II is fixedly mounted on the shaft I and meshes with the cylindrical gear I; the shaft I is mounted on the gear fixing frame through two pairs of upper and lower deep groove ball bearings; the upper swing arm and the lower swing arm are fixedly mounted on the shaft I through shaft end retaining rings and bolts, and are fixedly mounted on the fixed vertical plate; the bull's eye wheel is fixedly connected to the lower swing arm and is in tangential contact with the lower arc guide rail; The motor II is fixedly mounted on the motor plate, and the upper end of the shaft II is connected to the output shaft of the motor II through a plum blossom coupling; the cylindrical gear III is connected to the shaft II through a key, and its lower side is fixedly mounted on the shaft II through a shaft end retaining ring and bolts, the cylindrical gear IV is sleeved on the shaft III through an internal deep groove ball bearing, and meshes with the cylindrical gear IV, the upper end of the bent shaft is fixedly connected to the hub of the cylindrical gear IV through welding, the bevel gear I is connected to the shaft III through an internal deep groove ball bearing, and its lower part is fixed through a bearing retaining ring and bolts; the bevel gear II is sleeved on the lower part of the bent shaft through a deep groove ball bearing, and meshes with the bevel gear I; the bevel gear I and bevel gear II The bevel gear II and the bent shaft form a planetary gear system, and the bevel gear II performs planetary motion driven by the bent shaft by meshing with the bevel gear I; the upper end of the shaft IV is fixedly connected to the bevel gear II through a flange, and its lower end is connected to the upper end of the universal joint; the upper end of the shaft V is fixedly connected to the lower part of the universal joint, and two fixed horizontal plates are installed on the shaft V through deep groove ball bearings and fixedly connected to the fixed vertical plate; the fixed vertical plate is also fixedly connected to the motor plate; the chuck is fixed to the shaft V through a key connection, and the lower part of the shaft V is fixed by a shaft end retaining ring and bolts; the insertion rod is fixedly connected to the chuck through its thread, and its lower part is sleeved in the corresponding hole of the workpiece disk, and the workpiece disk is in contact with the grinding disk; The motor plate is equipped with six bull's eye wheels, and is installed in tangential contact with the upper arc guide rail; the shaft angle Σ of the oblique meshing of the bevel gear I and the bevel gear II is 60°, and the axes of the bevel gear II, the lower part of the universal joint, and the shaft V are on the same straight line; the fixed vertical plate and the upper swing arm, the lower swing arm, the fixed horizontal plate, and the motor plate are all fixedly connected by screws; when installing the universal joint, ensure that the shaft angles at its upper and lower ends are equal. 2. An arc swing plane grinding device as described in claim 1, characterized in that the lower arc guide rail, the upper arc guide rail and the aluminum profile are fixedly connected, and the aluminum profile and the grinder are fixedly connected.