Groove grinding wheel profile automatic detection and regulation trimming device and method

[0056] Example 1

[0057] Single-section circular arc profile bearing raceway grinding CBN grinding wheel dressing, such as figure 2 Shown.

[0058] 1. Input parameters such as the outer diameter, width, grain size, and radius of curvature of the dressing profile of the grinding wheel 9 to be dressed in the analysis controller 8, as well as the outer diameter of the diamond roller 31, the radius of the tool tip, and the rotation rate of the swing dresser 21 , The finishing process parameters such as the rotation angle and the speed of the diamond roller 31;

[0059] 2. Start the matching dressing program, and the device automatically searches for the initial position of the grinding wheel to be dressed 9:

[0060] 2.1 The analysis controller 8 adjusts the swing dressing frame 21 to rotate to the position where the axis of the diamond roller 31 and the axis of the grinding wheel 9 to be dressed are parallel by controlling the swing drive mechanism, as the position of the swing angle of 0°;

[0061] The 2.2-point laser displacement sensor 72 emits a light beam to irradiate the grinding wheel 9 to be trimmed, and the collected displacement data is transmitted to the analysis controller 8 in real time, and the analysis controller 8 intercepts the collected data at equal time intervals for average calculation. The analysis controller 8 controls the linear motor moving platform 51 to move upward first through the second motor driver 52. If the average value of the collected data processing is decreasing, it will be adjusted to move in the opposite direction, and the loop will stop until the average value of the collected data processing reaches the maximum. The linear motor moving platform 51 moves, and the current position is the 0 position of the Y coordinate;

[0062] 2.3 The linear laser displacement sensor 71 emits a beam to irradiate the grinding wheel 9 to be trimmed, and the collected data is transmitted to the analysis controller 8 in real time. The analysis controller 8 determines whether the effective data collected in the beam linear distribution direction is located in the middle of the range, if not , The fourth servo motor 63 is controlled by the fourth motor driver 64 to move and adjust the Z displacement of the device until the effective data collected in the beam line distribution direction is located in the middle of the range, and the current position is the Z coordinate 0 bit;

[0063] 2.4 The analysis controller 8 accurately controls the movement distance of the X displacement adjustment assembly according to the set trimming curvature R1, the diamond roller 31 tool nose arc radius R2, and the outer diameter of the diamond roller 31, so that the trimming point of the diamond roller 31 reaches the swing trimming frame 21 The distance of the axis of rotation is equal to R1.

[0064] 3. The grinding wheel 9 to be dressing feeds to the diamond roller 31. After the tool setting is completed, the dressing electric spindle 32 is started to drive the diamond roller 31 to rotate, and the analysis controller 8 controls the swing driving mechanism to move, so that the diamond roller 31 moves from position according to the set dressing process parameters A swings in a circular arc to position B to complete the normal tracking dressing of the profile of the grinding wheel 9 to be dressing;

[0065] 4. After the dressing is finished, the linear laser displacement sensor 71 collects the surface profile displacement data of the grinding wheel 9 to be dressed, and the analysis controller 8 processes the collected data to obtain the detection results of index parameters such as the radius of curvature of the grinding wheel 9 to be dressed, the arc roundness error, etc. ;

[0066] 5. The analysis controller 8 judges whether the dressing is qualified according to the test results of the profile parameters of the grinding wheel 9 to be dressed. If the profile curvature radius of the grinding wheel to be dressed 9 is unqualified, the X displacement adjustment assembly is adjusted according to the compensation difference. If the roundness of the arc is If the error is unqualified, reduce the rotation rate of the swing dressing frame 21, increase the speed of the diamond roller 31 or reduce the feed rate of the grinding wheel 9 to be dressed. After adjustment, perform the dressing-detection cycle again, and stop until the profile parameters of the grinding wheel 9 to be dressed are qualified. , Automatically complete the dressing of the single-section circular arc profile bearing channel grinding CBN to-be-dressed grinding wheel 9.

[0067] Example 2

[0068] Peach-shaped groove profile bearing raceway grinding CBN grinding wheel dressing, such as image 3 Shown.

[0069] 1. Input parameters such as the outer diameter, width, grain size, radius of curvature of the dressing profile, groove center distance, etc. of the grinding wheel 9 to be dressed in the analysis controller 8, as well as the outer diameter of the diamond roller 31 and the radius of the tool tip arc, and swing the dresser 21 Trimming process parameters such as rotation rate, rotation angle, and rotation speed of diamond roller 31.

[0070] 2. Start the matching dressing program, the same as the embodiment 1, the device automatically finds the initial position that adapts to the grinding wheel 9 to be dressed, that is: the swing dressing frame 21 rotates to the position where the axis of the diamond roller 31 and the axis of the grinding wheel 9 are parallel, as a rotary swing Angle 0° position; the linear motor moving platform 51 moves to the position where the point laser displacement sensor 72 collects data and the average value is the largest, as the Y coordinate 0 position; the fourth servo motor 63 movement adjustment device Z displacement, linear laser displacement sensor 71 beam The effective data collected in the linear distribution direction is located at the position in the middle of the range as the Z coordinate 0 position; the X displacement adjustment assembly moves so that the distance from the dressing point of the diamond roller 31 to the rotation axis of the swing dressing frame 21 is equal to R3.

[0071] 3. After the dressing wheel 9 is fed to the diamond roller 31, after the tool setting is completed, the dressing electric spindle 32 is started to drive the diamond roller 31 to rotate, and the analysis controller 8 adjusts the Z displacement to move the diamond roller 31 to the right by H/2 distance, and then controls the swing The driving mechanism moves to make the diamond roller 31 oscillate in a circular arc from position C to position D according to the set dressing process parameters, and then adjust the Z displacement to move the diamond roller 31 to the left by a distance of H, and then control the swing driving mechanism to move to make the diamond The roller 31 swings in a circular arc from the position E to the position F according to the set dressing process parameters to complete the normal tracking dressing of the peach-shaped groove profile of the grinding wheel 9 to be dressed.

[0072] 4. After the dressing is finished, the linear laser displacement sensor 71 collects the surface profile displacement data of the grinding wheel 9 to be trimmed, and the analysis controller 8 processes the collected data to obtain the profile curvature radius, arc roundness error, and channel eccentricity of the grinding wheel 9 to be trimmed. Test results of other index parameters.

[0073] 5. The analysis controller 8 judges whether the dressing is qualified according to the test results of the profile parameters of the grinding wheel 9 to be trimmed. If the profile curvature radius of the grinding wheel 9 to be trimmed is unqualified, the X displacement adjustment assembly is adjusted according to the compensation difference. If the arc roundness error is not If it is qualified, reduce the rotation rate of the swing dresser 21, increase the speed of the diamond roller 31, or reduce the feed of the grinding wheel 9 to be dressed. If the channel eccentricity is unqualified, adjust the Z coordinate 0 position according to the eccentric value, and perform the dressing again after adjustment —The detection cycle will stop until the profile parameters of the grinding wheel 9 to be dressing are qualified, and the dressing of the peach-shaped groove profile bearing groove grinding CBN grinding wheel 9 to be dressing is automatically completed.

[0074] Example 3

[0075] The dressing of multi-arc complex profile bearing raceway grinding CBN grinding wheel, such as Figure 4 Shown.

[0076] 1. Input parameters such as the outer diameter, width, grain size, radius of curvature of the dressing profile, groove center distance, etc. of the grinding wheel 9 to be dressed in the analysis controller 8, as well as the outer diameter of the diamond roller 31, the radius of the tool tip arc, etc., and swing the dresser 21 Trimming process parameters such as rotation speed, rotation angle, and the speed of diamond roller 31;

[0077] 2. Start the matching dressing program, the same as the embodiment 1, the device automatically finds the initial position that adapts to the grinding wheel 9 to be dressed, that is: the swing dressing frame 21 rotates to the position where the axis of the diamond roller 31 and the axis of the grinding wheel 9 are parallel, as a rotary swing Angle 0° position; the linear motor moving platform 51 moves to the position where the point laser displacement sensor 72 collects data and the average value is the largest, as the Y coordinate 0 position; the fourth servo motor 63 movement adjustment device Z displacement, linear laser displacement sensor 71 beam The effective data collected in the linear distribution direction is located at the position in the middle of the range, as the Z coordinate 0 position; the X displacement adjustment assembly moves so that the distance from the dressing point of the diamond roller 31 to the rotation axis of the swing dressing frame 21 is equal to R4.

[0078] 3. The dressing wheel 9 is fed to the diamond wheel 31. After the tool setting is completed, the dressing electric spindle 32 is started to drive the diamond wheel 31 to rotate, and the analysis controller 8 adjusts the Z displacement, so that the diamond wheel 31 moves T/2 to the right, and then controls the swing The driving mechanism moves to make the diamond roller 31 oscillate in a circular arc from position G to position I according to the set dressing process parameters; then adjust the Z displacement to move the diamond roller 31 to the left by a distance of T, and then control the swing driving mechanism to move to make the diamond The roller 31 swings in an arc from the position J to the position K according to the set dressing process parameters; then adjust the Z displacement so that the diamond roller 31 moves to the right by a distance of T/2, and at the same time, the grinding wheel 9 is to be retreated by a distance of L, and then control X The displacement adjustment assembly moves so that the distance between the dressing point of the diamond roller 31 and the axis of rotation of the swing dresser 21 is equal to R5, and then the swing drive mechanism is controlled to move, so that the diamond roller 31 swings in an arc from position M according to the set dressing process parameters To position N, the normal tracking dressing of the multi-arc complex profile bearing raceway grinding CBN grinding wheel 9 to be dressing is completed.

[0079] 4. After the dressing is finished, the linear laser displacement sensor 71 collects the surface profile displacement data of the grinding wheel 9 to be trimmed, and the analysis controller 8 processes the collected data to obtain the profile curvature radius, arc roundness error, and channel of the grinding wheel 9 to be trimmed. Test results of index parameters such as eccentricity.

[0080] 5. The analysis controller 8 judges whether the dressing is qualified according to the test results of the profile parameters of the grinding wheel 9 to be dressed. If the profile curvature radius of the grinding wheel 9 to be dressed is unqualified, it adjusts the X displacement adjustment assembly of the corresponding dressing stage according to the compensation difference; if If the arc roundness error is unqualified, in the corresponding dressing stage, reduce the rotation speed of the swing dresser 21, increase the speed of the diamond roller 31, or reduce the feed of the grinding wheel 9 to be dressed; if the channel eccentricity is unqualified, the eccentricity value Adjust the Z coordinate 0 position, and perform the dressing-checking cycle again after adjustment, and stop when the profile parameters of the dressing grinding wheel 9 are qualified, and automatically complete the dressing of the multi-arc complex profile bearing channel grinding CBN grinding wheel to be dressed.

[0081] In summary, according to the implementations described in Examples 1, 2, and 3, the dressing program is compiled in the programming environment of Labview, VC, VB, C#, etc., so that the device of the present invention can automatically complete the channel frosted contour according to the method of the present invention. Shape trimming, and realize automatic detection and regulation.