CN110421486B - Trimming device and method for automatically detecting and regulating profile of channel grinding wheel - Google Patents

Trimming device and method for automatically detecting and regulating profile of channel grinding wheel Download PDF

Info

Publication number
CN110421486B
CN110421486B CN201910664840.0A CN201910664840A CN110421486B CN 110421486 B CN110421486 B CN 110421486B CN 201910664840 A CN201910664840 A CN 201910664840A CN 110421486 B CN110421486 B CN 110421486B
Authority
CN
China
Prior art keywords
trimming
grinding wheel
displacement
profile
swinging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201910664840.0A
Other languages
Chinese (zh)
Other versions
CN110421486A (en
Inventor
朱建辉
师超钰
赵延军
丁玉龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Research Institute for Abrasives and Grinding Co Ltd
Original Assignee
Zhengzhou Research Institute for Abrasives and Grinding Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou Research Institute for Abrasives and Grinding Co Ltd filed Critical Zhengzhou Research Institute for Abrasives and Grinding Co Ltd
Priority to CN201910664840.0A priority Critical patent/CN110421486B/en
Publication of CN110421486A publication Critical patent/CN110421486A/en
Application granted granted Critical
Publication of CN110421486B publication Critical patent/CN110421486B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/12Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/062Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels using rotary dressing tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B53/00Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/12Dressing tools; Holders therefor
    • B24B53/14Dressing tools equipped with rotary rollers or cutters; Holders therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

A trimming device and a method for automatically detecting and regulating the profile of a channel grinding wheel comprise a C-shaped supporting frame, a swinging trimming frame, a swinging driving mechanism for providing rotary power for the swinging trimming frame, a trimming tool assembly and an analysis controller, wherein the analysis controller is respectively in control connection with a displacement detection assembly for detecting displacement and a displacement regulation assembly for regulating the movement of the trimming tool assembly; the C-shaped support frame is arranged on the outer side of the swinging trimming frame, the swinging driving mechanism is arranged at the upper end of the C-shaped support frame, the swinging trimming frame and the upper end of the swinging driving mechanism are connected with the mandrel and penetrate through the upper end rotating hole of the C-shaped support frame, and the lower end of the swinging trimming frame is connected with the mandrel and penetrate through the lower end rotating hole of the C-shaped support frame. The profile of the grinding wheel is detected on line, and the dressing process is regulated and controlled in real time according to the detection result, so that the purpose of automatically dressing the profile of the grinding wheel is achieved, the dressing time is saved, the dressing cost is reduced, and the efficiency is improved.

Description

Trimming device and method for automatically detecting and regulating profile of channel grinding wheel
Technical Field
The invention belongs to the technical field of dressing and detection of superhard material grinding wheels, and particularly relates to a dressing device for automatically detecting and regulating the profile of a channel grinding wheel and a using method thereof.
Background
The machining and final condition of the bearing ring channel are major factors affecting bearing accuracy and performance. At present, the bearing channel is generally machined by adopting a microcrystalline corundum ceramic bond grinding wheel with the granularity of 80# to 120# for plunge grinding. And in the grinding wheel dressing, a diamond pen is used as a dressing tool, and an arc profile is dressed on the surface of the grinding wheel by utilizing the motion of the swing arm.
The invention discloses a Chinese invention patent 'a dressing method of a grinding wheel for grinding an angular contact bearing groove' (application number: CN201110170530.7), which relates to a dressing method of a grinding wheel for grinding an angular contact bearing groove, and comprises the following steps: firstly, the end part of a diamond pen of the diamond pen arc trimmer is propped against the center of the outer surface of the grinding wheel; the diamond pen of the diamond pen arc trimmer revolves by taking the R right as the radius, the right side arc of the grinding wheel is trimmed and returns to the starting point, and the circle center Y1 of the revolution of the diamond pen is right of the circle center Y of the right side arc; moving the grinding wheel to the left side horizontally by a distance d between the centers of the left and right circular arcs, so that the revolution center Y2 of the diamond pen moves to the right by a distance d relative to Y1; the diamond pen of the diamond pen arc dresser revolves by taking the R left side as the radius, the left side arc of the grinding wheel is dressed, the grinding wheel returns to the original position, the revolution circle center Y2 of the diamond pen is the left side of the circle center Y of the left side arc, the peach-shaped profile of the grinding wheel is dressed by utilizing the horizontal movement of the diamond pen arc dresser and the grinding wheel, and the diamond roller dresser does not need to be installed after the diamond pen arc dresser is disassembled; the diamond pen is adopted to realize the trimming of the peach-shaped profile of the grinding wheel, but no corresponding device is provided, and the adjustment control and detection of the arc curvature of the profile of the grinding wheel cannot be realized.
The invention discloses a grinding wheel dresser for machining a channel of an angular contact ball bearing ring (application number: CN201410730283.5), which comprises a support, a swing arm driving device and a diamond pen, wherein the upper end and the lower end of the swing arm are rotatably supported on the support, the swing arm driving device is arranged on the support and connected with the swing arm, the diamond pen is arranged on the swing arm, a rotary supporting assembly is arranged at the supporting connection position of the swing arm and the support, the rotary supporting assembly comprises a supporting ball and two conical sleeves, the two conical sleeves are respectively provided with a conical surface groove, the two conical sleeves are respectively arranged on the swing arm and the support, and the supporting ball is tightly pressed between the conical surface grooves of the two conical sleeves. The invention discloses a static pressure dresser and a dressing method for a grinding wheel for an inner ring channel of a super-grinding ball bearing (application number: CN201410244041.5), and relates to a static pressure dresser and a dressing method for a grinding wheel for an inner ring channel of a super-grinding ball bearing. The trimming method comprises the following steps: s1: adjusting the position to enable the grinding wheel to be in contact with the golden pen; s2: setting the rotation angle of a main shaft of a servo motor; s3: starting a grinding wheel driving shaft and a servo motor, and starting grinding and finishing; s4: and stopping the grinding wheel driving shaft and the servo motor, and moving the golden pen. However, the above two patents can only finish a whole section of circular arc on the surface of the grinding wheel, and cannot finish the complex profile finishing formed by multiple sections of circular arcs, and cannot finish the adjustment of the circular arc curvature of the profile of the grinding wheel and the detection of the finished profile.
The invention discloses a grinding wheel dresser of a deep groove ball bearing outer ring groove grinding machine (application number: CN201610643588.1), which comprises a sliding seat, an upper bracket, a rough adjusting screw rod, a lower bracket, a fine adjusting device, a positioning frame, a diamond pen, a curvature standard block and a dial indicator, wherein the upper bracket is connected below the sliding seat in a sliding manner; however, the measured arc curvature is only a theoretical value, the trimming profile cannot be directly detected, a dial indicator and a mechanical component cannot achieve high measurement precision, the calibration needs to be corrected again when the diamond pen is replaced, and the complex profile trimming of a multi-section arc cannot be achieved.
The top end of the profile of the traditional 'peach-shaped groove' is in sharp-angled transition, stress concentration cracking is easily generated, great influence is brought to bearing load of a shaft, and meanwhile, along with the continuous improvement of the performance requirement of a bearing, the common abrasive grinding wheel hardly meets the channel processing requirement, and countries begin to explore the CBN grinding wheel to be popularized in the grinding of a bearing ring. The method disclosed in the above patent can only finish the trimming of a single-section arc or peach-shaped groove profile, and cannot meet the trimming requirement of the CBN grinding wheel, and a publicly reported trimming device and method for a multi-section arc complex profile of a grinding wheel profile are not seen at present, a trimming device and method applicable to a bearing channel grinding CBN grinding wheel are not seen, and a general trimming device and method capable of realizing automatic detection and regulation of complex profiles of grinding wheels with different dimensions and specifications are not seen.
Disclosure of Invention
The invention aims to provide a trimming device for automatically detecting and regulating the profile of a channel grinding wheel and a using method thereof, aiming at the defects of the prior art, and the purpose of automatically trimming the profile of the grinding wheel is achieved by detecting the profile precision of the grinding wheel on line and regulating and controlling the trimming process in real time according to the detection result.
In order to solve the technical problems, the invention adopts the technical scheme that:
the trimming device for automatically detecting and regulating the profile of the channel grinding wheel comprises an installation base, a C-shaped support frame, a swinging trimming frame, a swinging driving mechanism for providing rotary power for the swinging trimming frame, a trimming tool assembly and an analysis controller, wherein the analysis controller is respectively in control connection with a displacement detection assembly for detecting displacement and a displacement regulation assembly for regulating the movement of the trimming tool assembly;
the C-shaped support frame is arranged on the outer side of the swinging trimming frame, the swinging driving mechanism is arranged at the upper end of the C-shaped support frame, the connecting mandrel at the upper ends of the swinging trimming frame and the swinging driving mechanism penetrates through the upper-end rotating hole of the C-shaped support frame, the connecting mandrel at the lower end of the swinging trimming frame penetrates through the lower-end rotating hole of the C-shaped support frame, and the rotating shaft at the tail end of the swinging driving mechanism, the rotating shaft of the swinging trimming frame, the connecting mandrel, the upper-end rotating hole and the lower-end rotating hole of the C-;
the displacement regulation and control assembly comprises an X displacement regulation assembly, a Y displacement regulation assembly and a Z displacement regulation assembly;
the displacement detection assembly comprises a linear laser displacement sensor and a point laser displacement sensor;
the Y displacement adjusting assembly is arranged on the swinging trimming frame and comprises a linear motor moving platform which is vertically arranged and can move up and down;
the X displacement adjusting assembly is arranged on the linear motor moving platform and comprises a horizontal moving sliding table which is horizontally arranged and can move along the radial direction of the grinding wheel to be dressed;
the Z displacement adjusting assembly comprises a linear guide rail and a connecting plate, the connecting plate is fixedly connected with the C-shaped support frame, and the lower end of the C-shaped support frame is in sliding connection with the upper end of the mounting base through the linear guide rail;
the trimming tool assembly comprises a diamond roller and a trimming electric spindle, the diamond roller is fixedly arranged on a rotating shaft of the trimming electric spindle, and the trimming electric spindle is arranged on a horizontal moving sliding table of the X displacement adjusting assembly;
the point laser displacement sensor is arranged on the horizontal moving sliding table and horizontally emits a point laser beam, and the point laser beam is vertically intersected with the axis of the diamond roller;
the linear laser displacement sensor is arranged at the lower end of the C-shaped support frame, and a linear laser beam emitted by the linear laser displacement sensor is parallel to the rotation axis of the grinding wheel to be repaired and passes through the axis of the rotation axis.
The Y displacement adjusting assembly further comprises a second motor driver, the linear motor moving platform is connected with the second motor driver through a cable, and the second motor driver is connected with the analysis controller through a cable.
The X displacement adjusting assembly further comprises a third servo motor and a third motor driver, the tail part of the horizontal moving sliding table is connected with the third servo motor, and the horizontal moving sliding table is controlled to move along the radial direction of the grinding wheel to be dressed;
the third servo motor is connected with a third motor driver through a cable, and the third motor driver is connected with the analysis controller through a cable.
The Z displacement adjusting assembly further comprises a fourth servo motor and a fourth motor driver, the fourth servo motor is arranged on the connecting plate, and the C-shaped support frame moves along the axial direction of the grinding wheel to be trimmed through the ball screw;
the fourth servo motor is connected with a fourth motor driver through a cable, and the fourth motor driver is connected with the analysis controller through a cable.
The trimming tool assembly further comprises a frequency converter, the trimming electric main shaft is connected with the frequency converter through a cable, and the frequency converter is connected with the analysis controller through a cable.
The swing driving mechanism comprises a first servo motor, a first motor driver, a speed reducer and a coupler, wherein rotating members at two ends of the speed reducer are fixedly connected with an extension shaft of the first servo motor and one end of the coupler respectively, and the other end of the coupler is fixedly connected with the swing trimming frame through a core shaft;
the first servo motor is connected with a first motor driver through a cable, and the first motor driver is connected with the analysis controller through a cable.
The method of the trimming device for automatically detecting and regulating the profile of the channel grinding wheel comprises the following steps:
inputting the size parameter of the grinding wheel to be dressed, the size parameter of the diamond roller and the dressing process parameter into an analysis controller, starting a dressing program in the analysis controller, processing analysis data by the analysis controller according to the following steps, controlling each part of a dressing device to act, and realizing automatic detection and regulation of the grinding wheel;
step 1: the device automatically adjusts the swinging dressing frame to rotate to the position where the axis of the diamond roller is parallel to the axis of the grinding wheel to be dressed;
step 2: emitting a light beam by a point laser displacement sensor to irradiate on a grinding wheel to be trimmed, acquiring displacement data and transmitting the displacement data to an analysis controller in real time, and intercepting the acquired data at equal time intervals by the analysis controller to perform mean value calculation;
the analysis controller controls the linear motor moving platform to move through the second motor driver, the adjusting device Y moves, and the moving direction is judged and controlled according to the real-time data acquisition processing result of the point laser displacement sensor, namely: if the acquired data processing mean value is in an increasing trend, the current moving direction is kept, if the acquired data processing mean value is in a decreasing trend, the adjustment is performed to move in the opposite direction, the process is circulated, and the linear motor moving platform stops moving until the acquired data processing mean value reaches the maximum value, so that the automatic regulation and control of the Y displacement of the trimming device are realized;
and step 3: the linear laser displacement sensor emits a light beam to irradiate the grinding wheel to be trimmed, the acquired data is transmitted to the analysis controller in real time, the analysis controller judges whether effective data acquired in the linear distribution direction of the light beam is located at the middle position of a measuring range, if not, the fourth servo motor is controlled to move through the fourth motor driver, the Z displacement of the trimming device is adjusted, and the trimming device stops moving until the effective data acquired in the linear distribution direction of the light beam is located at the middle position of the measuring range, so that the Z displacement of the trimming device is automatically adjusted and controlled;
and 4, step 4: the analysis controller accurately controls the moving distance of the X displacement adjusting assembly according to the set trimming curvature and the size parameters of the diamond roller and the grinding wheel to be trimmed, so that the distance between the trimming point of the diamond roller and the rotating axis of the swinging trimming frame is equal to the set trimming curvature radius value, and the automatic adjustment and control of the trimming curvature are realized;
and 5: after tool setting is finished, the trimming electric spindle drives the diamond roller to rotate, and the analysis controller controls the Z displacement adjusting assembly and the swing driving mechanism to move according to set trimming process parameters to finish normal tracking trimming of the profile of the grinding wheel;
step 6: after finishing, the linear laser displacement sensor collects profile displacement data of the surface of the grinding wheel, and the analysis controller automatically obtains a detection result of profile parameters of the grinding wheel after processing the collected data;
and 7: and the analysis controller judges whether the dressing is qualified or not according to the detection result of the profile parameter of the grinding wheel, if not, adjusts the X displacement adjusting assembly, the Y displacement adjusting assembly, the Z displacement adjusting assembly and the dressing process parameter according to the detection result, and carries out dressing-detection circulation again until the profile parameter of the grinding wheel is qualified, so that the automatic detection and regulation of the dressing profile of the grinding wheel are realized.
The invention has the beneficial effects that:
(1) according to the trimming device for automatically detecting and regulating the profile of the channel grinding wheel, the trimming process is regulated and controlled in real time according to the detection result by detecting the profile precision of the grinding wheel on line, the purpose of automatically trimming the profile of the grinding wheel is achieved, the trimming time is saved, the trimming cost is reduced, and the efficiency is improved.
(2) According to the trimming device for automatically detecting and regulating the profile of the channel grinding wheel, the laser non-contact real-time detection is adopted to be matched with the automatic analysis control system, so that the trimming profile of the grinding wheel can reach high precision, and the product quality is improved.
(3) The trimming device for automatically detecting and regulating the profile of the channel grinding wheel not only can trim the conventional grinding wheel with single-section circular arc or peach-shaped channel profile, but also can trim the grinding wheel profile with multi-section circular arc complex profile.
(4) This trimming device of channel grinding wheel profile automated inspection and regulation and control not only can be used to the repairment of ordinary abrasive material emery wheel, can also be used to the repairment of superhard abrasive material emery wheels such as CBN, is suitable for different size specification emery wheels simultaneously, realizes good commonality, solves the problem that the dressing efficiency is low that current channel grinding wheel repairment "off-line measuring, trial and error repair" caused to and the unable problem of repairment of channel grinding superhard emery wheel.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a schematic view of a trimming trace of embodiment 1;
FIG. 3 is a schematic diagram of a trimming trace of embodiment 2;
fig. 4 is a schematic diagram of a trimming trace of embodiment 3.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The invention provides a trimming device for automatically detecting and regulating the profile of a channel grinding wheel, which is shown in figures 1 to 4. The trimming device for automatically detecting and regulating the profile of the channel grinding wheel comprises a swing driving mechanism, a swing trimming frame 21, a C-shaped supporting frame 22, a mounting base 23, a trimming tool assembly and an analysis controller 8, wherein the analysis controller 8 is in control connection with a displacement detection assembly for detecting displacement and a displacement regulation assembly for regulating the movement of the trimming tool assembly respectively. The displacement regulation and control assembly comprises an X displacement regulation assembly, a Y displacement regulation assembly and a Z displacement regulation assembly; the displacement detection assembly includes a line laser displacement sensor 71 and a point laser displacement sensor 72, as shown in fig. 1.
The swing driving mechanism comprises a first servo motor 11, a first motor driver 14, a speed reducer 12 and a coupler 13, wherein rotating members at two ends of the speed reducer 12 are fixedly connected with an extending shaft of the first servo motor 11 and one end of the coupler 13 respectively, the other end of the coupler 13 is fixedly connected with a swing trimming frame 21 through a mandrel, the first servo motor 11 is connected with the first motor driver 14 through a cable, and the first motor driver 14 is connected with the analysis controller 8 through a cable; the swing drive mechanism provides rotary power to swing trim carrier 21.
The Y displacement adjusting assembly is arranged on the swinging trimming frame 21 and comprises a linear motor moving platform 51 and a second motor driver 52, the linear motor moving platform 51 is vertically arranged, the second motor driver 52 can control the linear motor moving platform 51 to move up and down, the linear motor moving platform 51 is connected with the second motor driver 52 through a cable, and the first motor driver 14 is connected with the analysis controller 8 through a cable.
The X displacement adjustment assembly is arranged on the linear motor moving platform 51 and comprises a horizontal moving sliding table 41, a third servo motor 42 and a third motor driver 43, the horizontal moving sliding table 41 is horizontally placed, the tail part of the horizontal moving sliding table 41 is connected with the third servo motor 42, the third servo motor 42 can control the horizontal moving sliding table 41 to move along the radial direction of the grinding wheel to be repaired, the third servo motor 42 is connected with the third motor driver 43 through a cable, and the third motor driver 43 is connected with the analysis controller 8 through a cable.
The trimming tool assembly comprises a diamond roller 31, a trimming electric main shaft 32 and a frequency converter 33, wherein the diamond roller 31 is fixed on a rotating shaft of the trimming electric main shaft 32, the trimming electric main shaft 32 is arranged on a horizontal moving sliding table 41, the trimming electric main shaft 32 is connected with the frequency converter 33 through a cable, and the frequency converter 33 is connected with the analysis controller 8 through a cable; a point laser displacement sensor 72 is further arranged on the horizontal moving sliding table 41, the point laser displacement sensor 72 horizontally emits a point laser beam, and the point laser beam is vertically intersected with the axis of the diamond roller 31; the point laser displacement sensor 72 is connected with the analysis controller 8 through a signal line; the closer the spot laser displacement sensor 72 is to the irradiation position, the larger the output value.
The swing driving mechanism is arranged at the upper end of the C-shaped support frame 22, the C-shaped support frame 22 is arranged at the outer side of the swing trimming frame 21 in a surrounding mode, a connecting mandrel of the swing trimming frame 21 and the swing driving mechanism penetrates through an upper end rotating hole of the C-shaped support frame 22, and a connecting mandrel at the other end of the swing trimming frame 21 penetrates through a lower end rotating hole of the C-shaped support frame 22; and a rotating shaft at the tail end of the swinging driving mechanism, a rotating shaft of the swinging trimming frame 21, a connecting core shaft, and upper and lower end rotating holes of the C-shaped support frame 22 are all arranged on the same vertical line.
The lower end of the C-shaped support frame 22 is also provided with a linear laser displacement sensor 71, and a linear laser beam emitted by the linear laser displacement sensor 71 is parallel to the rotation axis of the grinding wheel 9 to be modified and passes through the axis of the rotation axis; the linear laser displacement sensor 71 is connected with the analysis controller 8 through a signal line; the closer the linear laser displacement sensor 71 is to the irradiation position, the larger the output value.
The Z displacement adjusting assembly comprises a linear guide rail 61, a connecting plate 62, a fourth servo motor 63 and a fourth motor driver 64, the lower end of the C-shaped supporting frame 22 is connected with the upper end of the mounting base in a sliding mode through the linear guide rail 61, the connecting plate 62 is fixedly connected with the C-shaped supporting frame 22, the fourth servo motor 63 is arranged on the connecting plate 62, the C-shaped supporting frame 22 moves axially along the grinding wheel 9 to be trimmed through a ball screw, the fourth servo motor 63 is connected with the fourth motor driver 64 through a cable, and the fourth motor driver 64 is connected with the analysis controller 8 through a cable.
The present invention will be described in further detail with reference to examples.
Example 1
And (3) carrying out CBN grinding wheel dressing on the bearing channel with the single-section arc profile, as shown in figure 2.
1. Inputting parameters such as the outer diameter, the width, the granularity and the curvature radius of a dressing profile of the grinding wheel 9 to be dressed, parameters such as the outer diameter of the diamond roller 31 and the circular arc radius of a tool nose, dressing process parameters such as the rotation speed and the rotation angle of the swinging dressing frame 21 and the rotation speed of the diamond roller 31 into the analysis controller 8;
2. starting a matched dressing program, and automatically searching the initialization position of the grinding wheel 9 to be dressed by the device:
2.1, the analysis controller 8 adjusts the swing trimming frame 21 to rotate to the position where the axis of the diamond roller 31 is parallel to the axis of the grinding wheel 9 to be trimmed by controlling the swing driving mechanism to be used as the position of a rotary swing angle of 0 degree;
and 2.2, emitting a light beam by the laser displacement sensor 72 to irradiate on the grinding wheel 9 to be trimmed, acquiring displacement data and transmitting the displacement data to the analysis controller 8 in real time, and intercepting the acquired data at equal time intervals by the analysis controller 8 to perform mean value calculation. The analysis controller 8 controls the linear motor moving platform 51 to move upwards firstly through the second motor driver 52, if the acquired data processing mean value is in a decreasing trend, the linear motor moving platform 51 is adjusted to move in a reverse direction, the process is circulated in the above way, until the acquired data processing mean value is maximum, the linear motor moving platform 51 stops moving, and the current position is a Y coordinate 0 position;
2.3 the linear laser displacement sensor 71 emits a light beam to irradiate on the grinding wheel 9 to be modified, the acquired data is transmitted to the analysis controller 8 in real time, the analysis controller 8 judges whether the effective data acquired in the linear distribution direction of the light beam is located at the middle position of the measuring range, if not, the fourth servo motor 63 is controlled by the fourth motor driver 64 to move, the Z displacement of the device is adjusted until the effective data acquired in the linear distribution direction of the light beam is located at the middle position of the measuring range, and the current position is the Z coordinate 0 position;
2.4 the analysis controller 8 precisely controls the moving distance of the X displacement adjusting assembly according to the set dressing curvature R1, the arc radius R2 of the tool nose of the diamond roller 31 and the outer diameter of the diamond roller 31, 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 R1.
3. After the grinding wheel 9 to be dressed is fed to the diamond roller 31 and 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 swings from the position A to the position B in an arc manner according to the set dressing process parameters, and the normal tracking dressing of the profile of the grinding wheel 9 to be dressed is completed;
4. after finishing trimming, the linear laser displacement sensor 71 collects surface profile displacement data of the grinding wheel 9 to be trimmed, and the analysis controller 8 processes the collected data to obtain index parameter detection results such as profile curvature radius, circular arc roundness error and the like of the grinding wheel 9 to be trimmed;
5. the analysis controller 8 judges whether the dressing is qualified or not according to the detection result 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, the X displacement adjustment assembly is adjusted according to the compensation difference, if the circular arc roundness error is unqualified, the rotation speed of the swing dressing frame 21 is reduced, the rotating speed of the diamond roller 31 is increased or the feeding amount of the grinding wheel 9 to be dressed is reduced, the dressing-detection cycle is performed again after the adjustment, the process is stopped until the profile parameters of the grinding wheel 9 to be dressed are qualified, and the bearing channel grinding CBN of the single-section circular arc profile is automatically finished for the dressing of the.
Example 2
Bearing channel grinding CBN wheel dressing with peach-shaped groove profile is shown in figure 3.
1. Parameters such as the outer diameter, the width, the granularity, the curvature radius of the dressing profile, the groove center distance and the like of the grinding wheel 9 to be dressed, parameters such as the outer diameter of the diamond roller 31, the circular arc radius of the tool nose and the like, and dressing process parameters such as the rotation speed, the rotation angle, the rotation speed of the diamond roller 31 and the like of the swing dressing frame 21 are input into the analysis controller 8.
2. Starting a matching dressing program, as in example 1, the device automatically finds an initial position adapted to the grinding wheel 9 to be dressed, namely: the swinging trimming frame 21 rotates to a position where the axis of the diamond roller 31 is parallel to the axis of the grinding wheel 9 to be trimmed and is used as a position of a rotating swinging angle of 0 degree; the linear motor moving platform 51 moves to the position where the data processing mean value acquired by the point laser displacement sensor 72 is maximum, and the position is used as a Y coordinate 0 position; the fourth servo motor 63 moves to adjust the Z displacement of the device, and effective data acquired in the linear distribution direction of the light beam of the linear laser displacement sensor 71 is positioned in the middle of the measuring range and serves as a Z coordinate 0; the X displacement adjustment assembly is moved so that the dressing point of the diamond roller 31 is at a distance equal to R3 from the axis of rotation of the oscillating dressing frame 21.
3. After the grinding wheel 9 to be dressed is fed to the diamond roller 31 and the tool setting is completed, the dressing electric spindle 32 is started to drive the diamond roller 31 to rotate, the analysis controller 8 adjusts the Z displacement to enable the diamond roller 31 to move rightwards for an H/2 distance, then the swing driving mechanism is controlled to move to enable the diamond roller 31 to do circular arc swinging from the position C to the position D according to the set dressing process parameters, then the Z displacement is adjusted to enable the diamond roller 31 to move leftwards for an H distance, then the swing driving mechanism is controlled to move to enable the diamond roller 31 to do circular arc swinging from the position E to the position F according to the set dressing process parameters, and the normal tracking dressing of the peach-shaped groove profile of the grinding wheel 9 to be dressed is.
4. After finishing trimming, 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 index parameter detection results such as profile curvature radius, circular arc roundness error, channel eccentricity and the like of the grinding wheel 9 to be trimmed.
5. The analysis controller 8 judges whether the trimming is qualified or not according to the detection result of the profile parameter 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 circular arc roundness error is unqualified, the rotation rate of the swing trimming frame 21 is reduced, the rotation speed of the diamond roller 31 is increased or the feeding amount of the grinding wheel 9 to be trimmed is reduced, if the channel eccentricity is unqualified, the Z coordinate 0 position is adjusted according to the eccentricity value, the trimming-detection cycle is carried out again after the adjustment until the profile parameter of the grinding wheel 9 to be trimmed is qualified, and the bearing channel grinding CBN of the peach-shaped profile of the grinding wheel 9 to be trimmed is.
Example 3
And (3) trimming by using a multi-arc bearing channel grinding CBN grinding wheel with a complex profile, as shown in figure 4.
1. Inputting parameters such as the outer diameter, the width, the granularity, the curvature radius of the dressing profile, the groove center distance and the like of the grinding wheel 9 to be dressed, parameters such as the outer diameter of the diamond roller 31, the circular arc radius of the tool nose and the like, dressing process parameters such as the rotation speed, the rotation angle, the rotation speed of the diamond roller 31 and the like of the swinging dressing frame 21 into the analysis controller 8;
2. starting a matching dressing program, as in example 1, the device automatically finds an initial position adapted to the grinding wheel 9 to be dressed, namely: the swinging trimming frame 21 rotates to a position where the axis of the diamond roller 31 is parallel to the axis of the grinding wheel 9 to be trimmed and is used as a position of a rotating swinging angle of 0 degree; the linear motor moving platform 51 moves to the position where the data processing mean value acquired by the point laser displacement sensor 72 is maximum, and the position is used as a Y coordinate 0 position; the fourth servo motor 63 moves to adjust the Z displacement of the device, and effective data acquired in the linear distribution direction of the light beam of the linear laser displacement sensor 71 is positioned in the middle of the measuring range and serves as a Z coordinate 0; the X displacement adjustment assembly is moved so that the dressing point of the diamond roller 31 is at a distance equal to R4 from the axis of rotation of the oscillating dressing frame 21.
3. After the grinding wheel 9 to be dressed is fed to the diamond roller 31 and the tool setting is completed, the dressing electric spindle 32 is started to drive the diamond roller 31 to rotate, the analysis controller 8 adjusts the Z displacement to enable the diamond roller 31 to move rightwards for a T/2 distance, then the swing driving mechanism is controlled to move to enable the diamond roller 31 to do circular arc swinging from the position G to the position I according to the set dressing process parameters, then the Z displacement is adjusted to enable the diamond roller 31 to move leftwards for a T distance, then the swing driving mechanism is controlled to move to enable the diamond roller 31 to do circular arc swinging from the position J to the position K according to the set dressing process parameters, then the Z displacement is adjusted to enable the diamond roller 31 to move rightwards for a T/2 distance, meanwhile, the grinding wheel 9 to be dressed retreats for a distance of L, then the X displacement adjusting assembly is controlled to move to enable the distance from the dressing point of the diamond roller 31 to the rotation axis of the swing dressing frame 21 to be equal to R5, then the swing driving mechanism is controlled to enable the diamond roller 31 to do circular arc swinging from the position M to the position N according.
4. After finishing trimming, the linear laser displacement sensor 71 collects surface profile displacement data of the grinding wheel 9 to be trimmed, and the analysis controller 8 processes the collected data to obtain index parameter detection results such as profile curvature radius, circular arc roundness error, channel eccentricity and the like of the grinding wheel 9 to be trimmed.
5. The analysis controller 8 judges whether the dressing is qualified or not according to the detection result of the profile parameter of the grinding wheel 9 to be dressed, and if the profile curvature radius of the grinding wheel 9 to be dressed is unqualified, the X displacement adjusting assembly of the corresponding dressing stage is adjusted according to the compensation difference value; if the circular arc roundness error is unqualified, the rotation rate of the swing trimming frame 21 is reduced, the rotating speed of the diamond roller 31 is increased or the feeding amount of the grinding wheel 9 to be trimmed is reduced at the corresponding trimming stage; and if the channel eccentricity is not qualified, adjusting the position 0 of the Z coordinate according to the eccentricity value, performing finishing-detection circulation again after adjustment until the profile parameters of the grinding wheel 9 to be finished are qualified, and automatically finishing the finishing of the bearing channel grinding CBN to be finished grinding wheel 9 with the multi-arc complex profile.
In summary, according to the embodiments described in embodiments 1, 2, and 3, the trimming program is programmed in the programming environment of L beyond view, VC, VB, C # and the like, so that the device of the present invention automatically finishes the profile trimming of the channel grinding wheel according to the method described in the present invention, and realizes automatic detection and control.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents.

Claims (7)

1. The utility model provides a trimming device of passageway emery wheel profile automated inspection and regulation and control which characterized in that: the device comprises an installation base, a C-shaped support frame, a swinging trimming frame, a swinging driving mechanism for providing rotary power for the swinging trimming frame, a trimming tool assembly and an analysis controller, wherein the analysis controller is respectively in control connection with a displacement detection assembly for detecting displacement and a displacement regulation and control assembly for regulating the movement of the trimming tool assembly;
the C-shaped support frame is arranged on the outer side of the swinging trimming frame, the swinging driving mechanism is arranged at the upper end of the C-shaped support frame, the connecting mandrel at the upper ends of the swinging trimming frame and the swinging driving mechanism penetrates through the upper-end rotating hole of the C-shaped support frame, the connecting mandrel at the lower end of the swinging trimming frame penetrates through the lower-end rotating hole of the C-shaped support frame, and the rotating shaft at the tail end of the swinging driving mechanism, the rotating shaft of the swinging trimming frame, the connecting mandrel, the upper-end rotating hole and the lower-end rotating hole of the C-;
the displacement regulation and control assembly comprises an X displacement regulation assembly, a Y displacement regulation assembly and a Z displacement regulation assembly;
the displacement detection assembly comprises a linear laser displacement sensor and a point laser displacement sensor;
the Y displacement adjusting assembly is arranged on the swinging trimming frame and comprises a linear motor moving platform which is vertically arranged and can move up and down;
the X displacement adjusting assembly is arranged on the linear motor moving platform and comprises a horizontal moving sliding table which is horizontally arranged and can move along the radial direction of the grinding wheel to be dressed;
the Z displacement adjusting assembly comprises a linear guide rail and a connecting plate, the connecting plate is fixedly connected with the C-shaped support frame, and the lower end of the C-shaped support frame is in sliding connection with the upper end of the mounting base through the linear guide rail;
the trimming tool assembly comprises a diamond roller and a trimming electric spindle, the diamond roller is fixedly arranged on a rotating shaft of the trimming electric spindle, and the trimming electric spindle is arranged on a horizontal moving sliding table of the X displacement adjusting assembly;
the point laser displacement sensor is arranged on the horizontal moving sliding table and horizontally emits a point laser beam, and the point laser beam is vertically intersected with the axis of the diamond roller;
the linear laser displacement sensor is arranged at the lower end of the C-shaped support frame, and a linear laser beam emitted by the linear laser displacement sensor is parallel to the rotation axis of the grinding wheel to be repaired and passes through the axis of the rotation axis.
2. The trimming device for automatically detecting and regulating the profile of a channel grinding wheel according to claim 1, wherein: the Y displacement adjusting assembly further comprises a second motor driver, the linear motor moving platform is connected with the second motor driver through a cable, and the second motor driver is connected with the analysis controller through a cable.
3. The trimming device for automatically detecting and regulating the profile of a channel grinding wheel according to claim 1, wherein: the X displacement adjusting assembly further comprises a third servo motor and a third motor driver, the tail part of the horizontal moving sliding table is connected with the third servo motor, and the horizontal moving sliding table is controlled to move along the radial direction of the grinding wheel to be dressed;
the third servo motor is connected with a third motor driver through a cable, and the third motor driver is connected with the analysis controller through a cable.
4. The trimming device for automatically detecting and regulating the profile of a channel grinding wheel according to claim 1, wherein: the Z displacement adjusting assembly further comprises a fourth servo motor and a fourth motor driver, the fourth servo motor is arranged on the connecting plate, and the C-shaped support frame moves along the axial direction of the grinding wheel to be trimmed through the ball screw;
the fourth servo motor is connected with a fourth motor driver through a cable, and the fourth motor driver is connected with the analysis controller through a cable.
5. The trimming device for automatically detecting and regulating the profile of a channel grinding wheel according to claim 1, wherein: the trimming tool assembly further comprises a frequency converter, the trimming electric main shaft is connected with the frequency converter through a cable, and the frequency converter is connected with the analysis controller through a cable.
6. The trimming device for automatically detecting and regulating the profile of a channel grinding wheel according to claim 1, wherein: the swing driving mechanism comprises a first servo motor, a first motor driver, a speed reducer and a coupler, wherein rotating members at two ends of the speed reducer are fixedly connected with an extension shaft of the first servo motor and one end of the coupler respectively, and the other end of the coupler is fixedly connected with the swing trimming frame through a core shaft;
the first servo motor is connected with a first motor driver through a cable, and the first motor driver is connected with the analysis controller through a cable.
7. The method of a trimming device for automatically detecting and regulating the profile of a channel grinding wheel according to any one of claims 1 to 6, characterized by comprising the steps of:
inputting the size parameter of the grinding wheel to be dressed, the size parameter of the diamond roller and the dressing process parameter into an analysis controller, starting a dressing program in the analysis controller, processing analysis data by the analysis controller according to the following steps, controlling each part of a dressing device to act, and realizing automatic detection and regulation of the grinding wheel;
step 1: the device automatically adjusts the swinging dressing frame to rotate to the position where the axis of the diamond roller is parallel to the axis of the grinding wheel to be dressed;
step 2: emitting a light beam by a point laser displacement sensor to irradiate on a grinding wheel to be trimmed, acquiring displacement data and transmitting the displacement data to an analysis controller in real time, and intercepting the acquired data at equal time intervals by the analysis controller to perform mean value calculation;
the analysis controller controls the linear motor moving platform to move through the second motor driver, the adjusting device Y moves, and the moving direction is judged and controlled according to the real-time data acquisition processing result of the point laser displacement sensor, namely: if the acquired data processing mean value is in an increasing trend, the current moving direction is kept, if the acquired data processing mean value is in a decreasing trend, the adjustment is performed to move in the opposite direction, the process is circulated, and the linear motor moving platform stops moving until the acquired data processing mean value reaches the maximum value, so that the automatic regulation and control of the Y displacement of the trimming device are realized;
and step 3: the linear laser displacement sensor emits a light beam to irradiate the grinding wheel to be trimmed, the acquired data is transmitted to the analysis controller in real time, the analysis controller judges whether effective data acquired in the linear distribution direction of the light beam is located at the middle position of a measuring range, if not, the fourth servo motor is controlled to move through the fourth motor driver, the Z displacement of the trimming device is adjusted, and the trimming device stops moving until the effective data acquired in the linear distribution direction of the light beam is located at the middle position of the measuring range, so that the Z displacement of the trimming device is automatically adjusted and controlled;
and 4, step 4: the analysis controller accurately controls the moving distance of the X displacement adjusting assembly according to the set trimming curvature and the size parameters of the diamond roller and the grinding wheel to be trimmed, so that the distance between the trimming point of the diamond roller and the rotating axis of the swinging trimming frame is equal to the set trimming curvature radius value, and the automatic adjustment and control of the trimming curvature are realized;
and 5: after tool setting is finished, the trimming electric spindle drives the diamond roller to rotate, and the analysis controller controls the Z displacement adjusting assembly and the swing driving mechanism to move according to set trimming process parameters to finish normal tracking trimming of the profile of the grinding wheel;
step 6: after finishing, the linear laser displacement sensor collects profile displacement data of the surface of the grinding wheel, and the analysis controller automatically obtains a detection result of profile parameters of the grinding wheel after processing the collected data;
and 7: and the analysis controller judges whether the dressing is qualified or not according to the detection result of the profile parameter of the grinding wheel, if not, adjusts the X displacement adjusting assembly, the Y displacement adjusting assembly, the Z displacement adjusting assembly and the dressing process parameter according to the detection result, and carries out dressing-detection circulation again until the profile parameter of the grinding wheel is qualified, so that the automatic detection and regulation of the dressing profile of the grinding wheel are realized.
CN201910664840.0A 2019-07-23 2019-07-23 Trimming device and method for automatically detecting and regulating profile of channel grinding wheel Active CN110421486B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910664840.0A CN110421486B (en) 2019-07-23 2019-07-23 Trimming device and method for automatically detecting and regulating profile of channel grinding wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910664840.0A CN110421486B (en) 2019-07-23 2019-07-23 Trimming device and method for automatically detecting and regulating profile of channel grinding wheel

Publications (2)

Publication Number Publication Date
CN110421486A CN110421486A (en) 2019-11-08
CN110421486B true CN110421486B (en) 2020-07-24

Family

ID=68411841

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910664840.0A Active CN110421486B (en) 2019-07-23 2019-07-23 Trimming device and method for automatically detecting and regulating profile of channel grinding wheel

Country Status (1)

Country Link
CN (1) CN110421486B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111941153A (en) * 2020-07-17 2020-11-17 杭州人本轴承有限公司 Grinding and finishing method for four-point angular contact bearing
CN111745511A (en) * 2020-07-28 2020-10-09 青岛润德精密轴承制造有限公司 Main shaft channel grinding mechanism in shaft-connected bearing and control method thereof
CN112571283A (en) * 2020-12-04 2021-03-30 闽南理工学院 High-precision cradle type rotary table structure and grinding wheel dresser
CN114454024B (en) * 2021-03-02 2023-04-25 华中科技大学 Wafer processing equipment
CN113211319A (en) * 2021-05-31 2021-08-06 安徽协同轴承股份有限公司 Column-shaped dresser for grinding superhard grinding tool by ball bearing raceway
CN113231962A (en) * 2021-06-01 2021-08-10 安徽协同轴承股份有限公司 Grinding wheel dresser for ball bearing raceway grinding
CN113500522B (en) * 2021-07-28 2023-01-17 大连理工大学 Numerical control grinding machine grinding wheel profile in-situ measurement device and method and light path adjustment method
CN113524039B (en) * 2021-07-28 2023-01-17 大连理工大学 Grinding wheel profile in-situ measurement device and method for numerically controlled grinder
CN114714235A (en) * 2022-03-21 2022-07-08 温州正力智能设备有限公司 Hollow spherical accessory polishing equipment

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2106038U (en) * 1991-12-28 1992-06-03 北京市机电研究院 Circular arc dresser of ball-bearing outer ring raceway grinding machine
CN2182029Y (en) * 1993-12-21 1994-11-09 吉林工学院 Multi-function dressing device for abrasive wheel surface
DE10132695B4 (en) * 2001-07-05 2009-02-05 Reishauer Ag Dressing grinding tools for gear grinding
CN100450718C (en) * 2007-09-30 2009-01-14 厦门大学 Cup-shape online grinding wheel trimmer with inclined angle
CN204711820U (en) * 2015-05-28 2015-10-21 无锡市东升自动化设备有限公司 A kind of grinding machine grinding wheel arc dresser
CN105817999A (en) * 2016-05-16 2016-08-03 无锡勇克精密机床制造有限公司 Arc trimmer
CN106181772A (en) * 2016-07-15 2016-12-07 宁波安杰森精密机械制造有限公司 A kind of linear servo drive repairs emery wheel mechanism
CN107553331B (en) * 2017-09-18 2023-09-26 郑州飞机装备有限责任公司 Multifunctional trimmer for grinding wheel

Also Published As

Publication number Publication date
CN110421486A (en) 2019-11-08

Similar Documents

Publication Publication Date Title
CN110421486B (en) Trimming device and method for automatically detecting and regulating profile of channel grinding wheel
CN108081134B (en) Grinding wheel profile in-situ detection system and method and grinding wheel profile error compensation method
RU2298467C2 (en) Method for centerless circular grinding and apparatus for performing the same
CN106272079B (en) Grinding wheel can restoring on line screw rod grinding attachment
US8287329B2 (en) Grinding machine and grinding method
CN210550116U (en) Intelligent ring polishing machine tool
CN113500522B (en) Numerical control grinding machine grinding wheel profile in-situ measurement device and method and light path adjustment method
JP2014533207A (en) Machine tool and workpiece measurement method
CN112372379A (en) Grinding method for complex curved surface type blade tip for aero-engine
CN109794825A (en) A kind of intelligence glass polishing machine bed and its control method
US20210053174A1 (en) Intelligent continuous polishing machine and process
KR100433928B1 (en) Method of evaluating a workpiece for machining
CN109654976B (en) Screw rotor detection table based on PLC control
JP2006320970A (en) Machining device
CN108436665A (en) A kind of burnishing device for optical element
CN109968202B (en) On-machine detection device and method for diameter and contour of grinding wheel
CN112170873A (en) Device and method for correcting position of machined workpiece
CN218312397U (en) Full-automatic sharpening machine for outer weld joint of steel pipe
CN203197714U (en) Numerical control grinding machine special for machining slewing bearing
CN112082445B (en) Detection method and detection device for attenuation change of spiral trajectory of steering screw
JP6333391B2 (en) Method and machine for measuring and forming the outer target contour of a workpiece by grinding
CN210307158U (en) High-precision deep groove ball bearing inner ring groove and inner and outer diameter composite grinding device
CN1014304B (en) Plane envelop method to fabricate tooth profile and gear grinder
CN112935934A (en) Cutter trimming device linked with multi-axis numerical control machine tool
CN112355815B (en) Grinding device for complex curved blade tips for aero-engine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant