CN110405622A - A Novel Circular Swing Plane Grinding Device - Google Patents

Abstract

A new type of circular arc swing plane grinding device, including motor bracket, motor I, rigid coupling, lower arc guide rail, cylindrical gear I, cylindrical gear II, bull's eye wheel, shaft I, gear holder, lower swing arm, upper Swing arm, upper arc guide rail, fixed vertical plate, motor plate, bent shaft, bevel gear II, motor II, plum coupling, shaft II, cylindrical gear III, cylindrical gear IV, shaft III, shaft IV, bevel gear I , universal joint, fixed horizontal plate, shaft V, chuck, insert rod and workpiece disk, through the mechanical mechanism, a motor drives the workpiece disk to form an irrational number of rotation, while another motor drives the workpiece disk to make a variable swing angle. The swing motion makes the workpiece disk realize two motions of rotation and swing during the grinding process, realizes the non-closure of the grinding track line, and increases the distribution range of the track line in the grinding disk. The invention improves the precision and efficiency of plane grinding.

Description

A Novel Circular 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 sets of arc-shaped guide rails, etc., and belongs 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. With the increase of crystal substrate size, the control of grinding uniformity becomes more and more difficult, and the uniformity of grinding trajectory has become a research hotspot. The kinematics principle between the grinding disc and the workpiece is one of the main factors that restrict the precision of the plane grinding process, that is, the plane formation mechanism of the grinding surface, which mainly includes the design of the driving mode, the processing parameters and the flatness dressing method of the grinding disc. .

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

The common feature of the current grinding trajectories is that with the passage of processing time, the grinding trajectories are closed, which means that the abrasive grains will repeat their motion trajectories over and over again within a certain period of time. At the same time, considering that during the grinding process, due to the different internal and external linear speeds of the grinding disc, 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 grinding quality of the workpiece surface.

The rotational speed ratio between the grinding disc and the workpiece disc in plane grinding is of great significance to the machining of the workpiece. Numerical simulation studies have found that when the rotational speed ratio is an irrational number, an unclosed machining curve can be obtained. Adjust the instantaneous position of the workpiece relative to the grinding disc, so that the movement of the work piece can spread over the surface of the grinding disc as evenly as possible, thereby effectively improving the wear uniformity of the grinding disc. However, the speed ratio adjustment of the existing plane grinding mechanism 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 the existing plane grinding mechanism, the present invention provides a novel circular 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 new type of circular arc swing plane grinding device, 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, and a hem Arm, upper swing arm, upper arc guide rail, fixed vertical plate, motor plate, bent shaft, bevel gear II, motor II, plum coupling, shaft II, cylindrical gear III, cylindrical gear IV, shaft III, shaft IV, Bevel gear I, universal joint, fixed horizontal plate, shaft V, chuck, plunger and workpiece plate;

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

The motor II is fixedly installed on the motor board, and the upper end of the shaft II is connected with the output shaft of the motor II through a plum-blossom coupling; the cylindrical gear III is connected with the shaft II through a key, and the lower part is connected by a shaft end stopper. The ring and bolt are fixedly installed on the shaft II. The cylindrical gear IV is sleeved on the shaft III through the inner deep groove ball bearing, and meshes with the cylindrical gear IV. The upper end of the curved shaft is fixedly connected to the hub of the cylindrical gear IV by welding, and the bevel gear I passes through the internal shaft. The deep groove ball bearing is connected with the shaft III, and its lower part is fixed by the bearing retaining ring and bolts; the bevel gear II is sleeved on the lower part of the curved shaft through the deep groove ball bearing, and meshes with the bevel gear I; the bevel gears I, The bevel gear II and the bent shaft form a planetary gear train, and the bevel gear II is engaged with the bevel gear I to make planetary motion under the drive of the bent shaft; the upper end of the shaft IV is fixedly connected with the bevel gear II through the flange, and the lower end is connected to the bevel gear II. The upper end of the universal joint is connected; the upper end of the shaft V is fixedly connected with the lower part of the universal joint, and two fixed horizontal plates are installed on the shaft V through deep groove ball bearings, and are fixedly connected to the fixed vertical plate; The fixed vertical plate is fixedly connected with the motor plate at the same time; the chuck is fixedly connected to the shaft V through the key connection, and the lower part of the shaft V is fixed by the shaft end retaining ring and the bolt; the insertion rod is fixedly connected by its thread On the chuck, its lower part is sleeved in the corresponding hole of the workpiece disk, and the workpiece disk and the grinding disk are in contact with each other.

Further, six bull's-eye wheels are installed on the motor board, and are installed in tangential contact with the upper arc guide rail.

Still further, the shaft angle Σ=60° of the oblique meshing of the bevel gear I and the bevel gear II, 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.

Still further, the center of the axis 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 grinding machine.

Further, the fixed vertical plate, the upper swing arm, the lower swing arm, the fixed horizontal plate, and the motor plate are all fixedly connected by screws, which ensures that the relative position of the axis V relative to the axis III remains unchanged, and the overall rotation structure remains stable. , to ensure the speed output of the workpiece disc.

Still further, when the universal joint is installed, it is ensured that the shaft angles at the upper and lower ends of the universal joint are equal in size.

Still further, the lower arc guide, the upper arc guide and the aluminum profile are fixedly connected, and the aluminum profile and the grinding machine are fixedly connected to form a whole.

In the present invention, through a reasonable mechanical mechanism, one motor drives the workpiece disk to form an irrational number of rotations, and at the same time, another motor drives the workpiece disk to perform a swinging motion with a variable swing angle, so that the workpiece disk can realize two movements of rotation and swing during the grinding process. , to realize the non-closure of the grinding track line, and increase the distribution range of the track line in the grinding disc.

The beneficial effects of the invention are as follows: 1. For the transmission of the workpiece disk of the present invention, a plunger is used to connect the workpiece disk, which can effectively adjust the height of the workpiece, realize the effectiveness of the transmission, and ensure the realization of the unreasonable rotation speed of the workpiece disk. . 2. The upper and lower sets of circular arc-shaped rails of the present invention play a guiding role and a certain fixing role for the swing motion, and the stability and accuracy of the swing are ensured by the bull's eye wheel. 3. The rocker arm, the fixed vertical plate and the fixed horizontal plate are used for the fixation of the swing and rotation structure of the present invention, which realizes the overall fixation and swing of the mechanism, and effectively realizes the combination of the two movements. 3. The workpiece disc rotation structure of the present invention has the advantages of accurate transmission, no noise, lower production cost, higher grinding precision and efficiency, and solves the problem of track line closure from the principle of grinding motion. 4. The arc swinging structure of the present invention is simple, the transmission is stable, and the uniform wear of the grinding disc is realized, which is of great significance for improving the grinding precision of the workpiece.

Description of drawings

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

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

3 is a cross-sectional view of a part of the structure of the present invention, wherein (a) is a bull's eye wheel, (b) is an axis II, and (c) is an 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 holder, 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 coupling, 19, Shaft II, 20, Spur gear III, 21, Spur 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 disc, 31, grinding disc.

The number of teeth of each gear is cylindrical gear Iz1=20, cylindrical gear IIz2=40, cylindrical gear IIIz3=20, cylindrical gear IVz4=40, bevel gear I and bevel gear IIz1=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 new type of circular 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, Gear holder, lower swing arm, upper swing arm, upper arc guide rail, fixed vertical plate, motor plate, bent shaft, bevel gear II, motor II, plum coupling, shaft II, cylindrical gear III, cylindrical gear IV, shaft Ⅲ, shaft Ⅳ, bevel gear Ⅰ, universal joint, fixed horizontal plate, shaft Ⅴ, chuck, insert rod and workpiece disc.

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

The motor II17 is fixedly installed on the motor board, the upper end of the shaft II19 is connected with the output shaft of the motor II17 through the plum coupling 18; the cylindrical gear III20 is connected with the shaft II19 through a key, and the lower part is connected by the shaft end The retaining ring and bolts are fixed on the shaft II19. The cylindrical gear IV21 is sleeved on the shaft III22 through the inner deep groove ball bearing, and meshes with the cylindrical gear IV21. The upper end of the curved shaft 15 is fixedly connected to the hub of the cylindrical gear IV21 by welding, and the bevel gear I24 passes through the internal The deep groove ball bearing is connected with the shaft III22, and its lower part is fixed by the bearing retaining ring and bolts; the bevel gear II16 is sleeved on the lower part of the bent shaft 15 through the deep groove ball bearing, and meshes with the bevel gear I24; the bevel gear II16 is I24. Bevel gear II16 and the curved shaft form a planetary gear train. The bevel gear II16 is engaged with bevel gear I24 to make planetary motion driven by the curved shaft 15; the upper end of the shaft IV23 is fixedly connected to bevel gear II16 through a flange. Its lower end is connected with the upper end of the universal joint 25; the upper end of the shaft V27 is fixedly connected with the lower part of the universal joint 25, and the two fixed transverse plates 26 are installed on the shaft V27 through deep groove ball bearings, and It is fixedly connected to the fixed vertical plate 13 by screws; the fixed vertical plate 13 and the motor plate 14 are fixedly connected to the motor plate 14 by screws; the chuck 28 is fixedly connected to the shaft V27 through a key connection, and is connected to the shaft end retaining ring and The lower part of the shaft V27 is fixed by bolts; the insert rod 29 is fixedly connected to the chuck 28 through its thread, and the lower part is sleeved in the corresponding hole of the workpiece disk 30, and the workpiece disk 30 and the grinding disk 31 are in contact.

Further, six bulls-eye wheels 7 are mounted on the motor plate 17 and are in tangential contact with the upper arc guide rail 12 .

Still further, the shaft angle Σ=60° of the oblique meshing of the bevel gear I24 and the bevel gear II16, the bevel gear II16, the lower part of the universal joint 25, and the shaft V27, the axes are on the same straight line.

Still further, the center of the axis of the cylindrical gear II6 is 445 mm away from the center of the grinding disc 31, and the axis is on the center line of the grinding machine.

Further, 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 to ensure that the relative position of the axis V27 relative to the axis III22 is unchanged, and the rotation The overall structure remains stable to ensure the rotational speed output of the workpiece disc.

Further, when the universal joint 25 is installed, it is ensured that the shaft angles at the upper and lower ends of the universal joint 25 are equal in size.

Still further, the lower curved guide rail 4 and the upper curved guide rail 12 are fixedly connected to the aluminum profile, and the aluminum profile is fixedly connected to the grinder to form a whole.

The working process of the present invention is:

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

The second part, the input signal of motor II17 transmits the power to the spur gear III20 through the plum coupling 18. Due to the meshing effect of the spur gear III20 and the spur gear IV21, the crankshaft is driven to rotate around the axis of the shaft III22, and the bevel gear II16 passes through The meshing with the bevel gear I24 makes a planetary motion driven by the curved shaft, and the rotational speed is transmitted to the shaft V27 at the same speed through the universal joint 25, thereby driving the rotary motion of the chuck 28, and then through the insertion rod 29 The motion is transmitted to the shaft V27. The workpiece disc 30 completes the self-rotating motion of the workpiece.

The two motors work together, so that the workpiece disc 30 performs a smooth swing motion while realizing the self-rotation, and this mode improves the machining accuracy and machining efficiency of the single-sided plane grinding.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention. As long as the technical solutions that can be realized on the basis of the above-described embodiments without creative work, all should be regarded as falling into the patent of the present invention. within the scope of protection of rights.

Claims (7)

1. A novel circular arc plane swing grinding device is characterized in that: 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 , gear holder, lower swing arm, upper swing arm, upper arc guide rail, fixed vertical plate, motor plate, curved shaft, bevel gear II, motor II, plum coupling, shaft II, cylindrical gear III, cylindrical gear IV, Axis III, axis IV, bevel gear I, universal joint, fixed horizontal plate, axis V, chuck, plunger and workpiece plate; The motor I is fixedly installed on the motor bracket, the motor shaft is directly connected with the cylindrical gear I through a rigid coupling, the cylindrical gear I is fixedly installed on the upper end of the motor shaft; the cylindrical gear II is fixedly installed on the shaft I, And it meshes with the cylindrical gear I; the cylindrical fixed shaft I is installed on the gear fixing frame through the upper and lower pairs of deep groove ball bearings; the upper swing arm and the lower swing arm are fixed on the shaft I through the shaft end retaining ring and bolts, and fixedly installed on the fixed vertical plate; the bull's eye wheel is fixedly connected with the lower swing arm, and is in tangential contact with the lower arc guide rail; The motor II is fixedly installed on the motor board, and the upper end of the shaft II is connected with the output shaft of the motor II through a plum-blossom coupling; the cylindrical gear III is connected with the shaft II through a key, and the lower part is connected by a shaft end stopper. The ring and bolt are fixedly installed on the shaft II. The cylindrical gear IV is sleeved on the shaft III through the inner deep groove ball bearing, and meshes with the cylindrical gear IV. The upper end of the curved shaft is fixedly connected to the hub of the cylindrical gear IV by welding, and the bevel gear I passes through the internal shaft. The deep groove ball bearing is connected with the shaft III, and its lower part is fixed by the bearing retaining ring and bolts; the bevel gear II is sleeved on the lower part of the curved shaft through the deep groove ball bearing, and meshes with the bevel gear I; the bevel gears I, The bevel gear II and the bent shaft form a planetary gear train, and the bevel gear II is engaged with the bevel gear I to make planetary motion under the drive of the bent shaft; the upper end of the shaft IV is fixedly connected with the bevel gear II through the flange, and the lower end is connected to the bevel gear II. The upper end of the universal joint is connected; the upper end of the shaft V is fixedly connected with the lower part of the universal joint, and two fixed horizontal plates are installed on the shaft V through deep groove ball bearings, and are fixedly connected to the fixed vertical plate; The fixed vertical plate is fixedly connected with the motor plate at the same time; the chuck is fixedly connected to the shaft V through the key connection, and the lower part of the shaft V is fixed by the shaft end retaining ring and the bolt; the insertion rod is fixedly connected by its thread On the chuck, the lower part is sleeved in the corresponding hole of the workpiece disk, and the workpiece disk and the grinding disk are in contact. 2 . The novel arc-shaped swing plane grinding device according to claim 1 , wherein the motor plate is equipped with six bulls-eye wheels, which are installed in tangential contact with the upper arc-shaped guide rail. 3 . 3. A novel arc-shaped swing plane grinding device as claimed in claim 1 or 2, characterized in that: the shaft angle Σ=60° of the helical meshing of the bevel gear I and the bevel gear II, and the bevel gear II , The lower part of the universal joint and the axis of shaft V are on the same straight line. 4. A novel arc-shaped swing plane grinding device according to claim 1 or 2, characterized in that: the center of the axis of the cylindrical gear II is 445mm from the center of the grinding disc, and the axis is on the center line of the grinding machine . 5. A novel arc-shaped swing plane grinding device according to claim 1 or 2, characterized in that: the fixed vertical plate, the upper swing arm, the lower swing arm, the fixed horizontal plate, and the motor plate are all fixed by screws connect. 6 . The novel arc-shaped swinging plane grinding device according to claim 1 or 2 , wherein when the universal joint is installed, it is ensured that the shaft angles at the upper and lower ends of the universal joint are equal in size. 7 . 7 . The novel arc-shaped swing plane grinding device according to claim 1 , wherein the lower arc-shaped guide rail and the upper arc-shaped guide rail are fixedly connected to the aluminum profile, and the aluminum profile is fixedly connected to the grinding machine. 8 .