CN109366360B - On-site trimming machine for profile grinding wheel - Google Patents
On-site trimming machine for profile grinding wheel Download PDFInfo
- Publication number
- CN109366360B CN109366360B CN201811175578.5A CN201811175578A CN109366360B CN 109366360 B CN109366360 B CN 109366360B CN 201811175578 A CN201811175578 A CN 201811175578A CN 109366360 B CN109366360 B CN 109366360B
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- Prior art keywords
- trimming
- roller
- shaft
- grinding wheel
- motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/12—Dressing tools; Holders therefor
- B24B53/14—Dressing tools equipped with rotary rollers or cutters; Holders therefor
Abstract
The invention discloses an in-place trimming machine for a profile grinding wheel, which comprises: the trimming device comprises a motor, a transmission device, a trimming shaft and a trimming roller; one end of the transmission device is connected with the motor, the other end of the transmission device is connected with the trimming shaft, and the trimming roller is arranged on the trimming shaft; the transmission device is used for transmitting the energy of the motor to the trimming shaft to drive the trimming shaft to rotate so as to drive the trimming roller to rotate; the roller axis of the dressing roller is vertical to the grinding wheel axis of the grinding wheel to be ground, and the dressing roller is used for dressing the grinding wheel to be ground in place. The profile grinding wheel in-place finishing machine can be used in place, and can keep the finishing roller wheel to be uniformly worn, so that the finishing precision of the grinding wheel is improved.
Description
Technical Field
The invention relates to the technical field of profile grinding wheel processing, in particular to an in-place trimming machine for a profile grinding wheel.
Background
With the rapid development of the national defense industry, the die manufacturing industry and the tool manufacturing industry, the demand of various complex and precise tools, dies and other contour curve parts is increasingly large, the parts with complex contour curves have high hardness and higher requirements on the manufacturing precision, the final processing of the parts is realized by a numerical control contour curve grinding machine through a thin double-bevel arc grinding wheel, the material is cut off by the arc of the tool nose of the grinding wheel, the arc of the tool nose of the grinding wheel is worn in the processing process, the accuracy of the arc shape deviates from a normal value along with the increase of the processing time, and the grinding wheel contour must be trimmed to ensure the grinding processing precision.
The existing profile grinding wheel is mainly used for dressing the profile of the grinding wheel by adopting a diamond roller, the diamond roller does not rotate during dressing, the grinding wheel is dressed by relative motion of the grinding wheel and a cylindrical dressing roller, the required profile size and shape precision of the grinding wheel are obtained, the dressing roller after being used for many times can reduce the shape precision of the dressing roller due to uneven wear, the dressing precision of the grinding wheel is uncontrollable, and the dressing precision of the profile of the grinding wheel is reduced.
In order to improve the dressing performance of the grinding wheel, the application number is as follows: 201110157028.2 discloses a grinding wheel dresser, which comprises a grinding wheel spindle and a driving spindle motor, is mainly used for dressing a grinding wheel for a vertical grinding machine, and introduces two forms of single-point dressing and double-arc surface roller dressing, wherein the single-point mode is mainly used for auxiliary dressing but cannot be used for online dressing of a grinding wheel with a curved profile.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an in-place trimming machine for a profile grinding wheel, which can be used in place and can keep a trimming roller to be uniformly worn, so that the trimming precision of the grinding wheel is improved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention provides an in-place trimming machine for a profile grinding wheel, which comprises: the trimming device comprises a motor, a transmission device, a trimming shaft and a trimming roller;
one end of the transmission device is connected with the motor, the other end of the transmission device is connected with the trimming shaft, and the trimming roller is arranged on the trimming shaft; the transmission device is used for transmitting the energy of the motor to the trimming shaft to drive the trimming shaft to rotate so as to drive the trimming roller to rotate;
the roller axis of the dressing roller is perpendicular to the grinding wheel axis of the grinding wheel to be ground, and the dressing roller is used for carrying out in-place dressing on the grinding wheel to be ground.
Because the dressing wheel on the traditional grinding wheel dresser is fixed on the rack and can not rotate, the dressing roller wheel is partially worn, the dressing precision of the grinding wheel is uncontrollable, the machining precision is finally reduced, and the dressing wheel is scrapped. According to the profile grinding wheel in-place trimming machine, the trimming roller is arranged at one end of the trimming shaft, the axis of the trimming roller is perpendicular to the axis of the grinding wheel in the trimming process, the motor drives the trimming roller to rotate, the uniform abrasion of the trimming roller is ensured, the defects of uncontrollable grinding wheel trimming precision, reduced service life of the roller and the like caused by the nonuniform abrasion of the roller are avoided, the precision retentivity of the roller is improved, and meanwhile, the grinding wheel is trimmed in place to improve the processing efficiency.
Preferably, the dressing roller is a cylindrical dressing roller.
Preferably, the dressing roller adopts a rotation mode and the dressing roller and the grinding wheel to be ground move relatively to carry out in-place dressing, so that the roller is uniformly worn, the service life of the roller is prolonged, and meanwhile, the dressing precision of the grinding wheel is improved.
Preferably, the method further comprises the following steps: and the motor speed regulating device is used for controlling the rotating speed of the motor so as to control the rotating speed of the trimming roller.
Preferably, the transmission means comprises: a first pulley, a second pulley, and a belt;
the first belt pulley is arranged at the motor shaft end of the motor;
the second belt pulley is arranged at one end of the trimming shaft, and the trimming roller is arranged at the other end of the trimming shaft; the first belt pulley is connected with the second belt pulley through a belt.
Preferably, the transmission ratio of the transmission is greater than 1.
Preferably, the method further comprises the following steps: a motor base and a base plate;
the motor is arranged on the motor base; the motor base is arranged on the base plate; further, the air conditioner is provided with a fan,
the motor base is adjustably mounted on the base plate and used for driving the motor to move, and then the tightness of the transmission device is adjusted.
Preferably, the method further comprises the following steps: a finisher frame on which the finisher is mounted; further, the air conditioner is provided with a fan,
the finisher is adjustably mounted on the finisher frame for adjusting the left and right, front and back, and up and down positions of the finisher.
Preferably, the motor axis of the motor and the trimming shaft axis of the trimming roller are located on the same plane and are parallel to each other.
Preferably, the trimming shaft of the trimming roller is a stepped shaft, so that the positioning of each component in the axial direction of the trimming shaft is more accurate.
Compared with the prior art, the invention has the following advantages:
(1) the in-place trimming machine for the profile grinding wheel is used for trimming in a self-rotating mode of the trimming roller, can be used in place and improves the processing efficiency; in the dressing process, the roller axis of the dressing roller is perpendicular to the grinding wheel axis of the grinding wheel to be ground, so that the uniform loss of the dressing roller in the grinding wheel dressing process is ensured, the defects of uncontrollable grinding wheel dressing precision and short service life of the dressing roller caused by nonuniform abrasion of the dressing roller are avoided, and the precision retentivity of the dressing roller is improved;
(2) according to the profile grinding wheel in-place trimming machine, the trimming roller is a cylindrical trimming roller, so that the roller structure can be simplified, the contact area with a grinding wheel to be ground is increased, and the abrasion of the trimming roller is delayed;
(3) the profile grinding wheel in-place trimming machine adopts belt transmission to realize the driving of the trimming shaft and the trimming roller, thereby ensuring the stable transmission;
(4) according to the profile grinding wheel in-place finisher, the transmission ratio of the transmission device is greater than 1, and the transmission is realized through the speed increasing belt, so that the overall size of the finisher can be reduced;
(5) according to the profile grinding wheel in-place finisher, the motor base is adjustably mounted on the base plate and can drive the motor to move, and therefore the tightness of the transmission device can be adjusted.
(6) The profile grinding wheel is an in-place trimming machine, the trimming machine is adjustably mounted on a trimming machine frame, the left and right, front and back and up and down positions of the trimming machine can be adjusted, and the position of the trimming machine relative to a workbench can be better adjusted.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
Embodiments of the invention are further described below with reference to the accompanying drawings:
FIG. 1 is a cross-sectional view of a profile grinding wheel in-place dresser in accordance with one embodiment of the present invention;
FIG. 2 is a front view of a profile grinding wheel in-place dresser in accordance with one embodiment of the present invention;
figure 3 is a top view of a profile grinding wheel in-place dresser in accordance with one embodiment of the present invention.
Description of reference numerals: 1-motor, 2-motor base, 3-first belt pulley, 4-base plate, 5-sealing gasket, 6-sealing cover plate, 7-trimmer frame, 8-sealing paper gasket, 9-second belt pulley, 10-trimming roller, 11-check ring, 12-spacer bush with sealing ring, 13-trimming shaft, 14-shaft sleeve, 15-bearing, 16-nut for T-shaped groove, 17-belt; 18-frame, 19-grinding wheel to be ground.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
An embodiment of a profile grinding wheel in-place dresser of the present invention is described in detail with reference to fig. 1-3, with a cross-sectional view thereof as shown in fig. 1, a front view thereof as shown in fig. 2, and a top view thereof as shown in fig. 3, and includes: the device comprises a motor 1, a transmission device, a trimming shaft 13 and a trimming roller 10; one end of the transmission device is connected with the motor 1, the other end of the transmission device is connected with the trimming shaft 13, and the trimming roller 10 is arranged on the trimming shaft 13; the transmission device is used for transmitting the energy of the motor 1 to the trimming shaft 13 to drive the trimming shaft 13 to rotate, and further drive the trimming roller 10 to rotate; the dressing roller 10 has a roller axis perpendicular to the grinding wheel axis of the grinding wheel 19 to be ground, and the dressing roller 10 is used for dressing the grinding wheel 19 to be ground in place.
For more smooth transmission, the transmission preferably employs a belt transmission, including: the belt pulley comprises a first belt pulley 3, a second belt pulley 9 and a belt 17, wherein the first belt pulley 3 is arranged at the motor shaft end of the motor 1; the second belt pulley 9 is arranged at one end of the trimming shaft 13, and the trimming roller 10 is arranged at the other end of the trimming shaft 13; the first belt pulley and the second belt pulley are in the same groove type and are connected through a belt. In this embodiment, a retainer ring 11 is further disposed at an end of the dressing roller 10 close to the edge of the dressing shaft 13, so as to prevent the dressing roller from sliding outwards.
In order to increase the contact area with the grinding wheel to be ground and to delay the wear of the dressing roller, the dressing roller 10 is preferably configured as a cylindrical dressing roller with a circular through hole in the middle.
In some embodiments of the invention, the contour grinding wheel in-place finisher further comprises a motor base 2, a base plate 4 and a rack 18, the motor 1 is mounted on the motor base 2, the motor base 2 is mounted on the base plate 4, the base plate 4 is provided with a waist hole and can be connected to the rack 18 through a bolt, a belt 17 is tensioned by translating the position of the base plate 4 on the rack 18, the finishing shaft 13 is mounted in the rack 18 through a bearing 16, a sealing paper pad 8 and a sealing cover plate 6 are sequentially arranged at a notch of the rack 18, a sealing pad 5 is arranged at the joint of the sealing cover plate 6 and the motor base 2, and the sealing cover plate 6 is connected to the rack 18 through a bolt.
In some embodiments of the invention, the profile grinding wheel in-place dresser further comprises a dresser rack 7, a waist-shaped hole is formed in the side face of the dresser rack 7 and connected with the rack 18 through a bolt, the levelness of the rack 18 can be adjusted up and down, a waist-shaped hole is also formed in the bottom face of the dresser rack 7, the waist-shaped hole is connected with a machine tool through a T-shaped groove and a nut 16, and the position of the dresser relative to the workbench can be adjusted front and back, left and right.
Based on the above description, in a specific embodiment, the trimming shaft 13 is a stepped shaft, one end of the trimming shaft 13 is connected to the second pulley 9 by a key and uses 2M 6 hexagon nuts to prevent the second pulley 9 from moving radially, a shaft sleeve 14 is disposed in the middle of the trimming shaft 13, the shaft sleeve 14 is fixedly connected to the frame 18 by 1M 5 x 10 countersunk head screw, a pair of bearings 15 are disposed at two ends of the shaft sleeve 14, the type of the bearing 15 can be C46019, the bearing 15 is lubricated by lubricating oil, a spacer 12 with a pair of sealing rings is disposed at the outer side of the bearing 15, and a trimming roller 10 and a retaining ring 11 are disposed at the other end of the trimming shaft 13 and the retaining ring 11 and the trimming roller 10 are fixed by using 1M 8 hexagon nut.
Because the existing tool tip profile grinding wheel in-place trimming machine adopts fixed diamonds to trim the circular arc radius of the tool tip of the grinding wheel, the diamonds are fixed, the circular arc of the grinding wheel is in long-time small-area contact with the trimming roller, the local abrasion of the roller is easy to cause, the processing precision of the circular arc radius of the grinding wheel is reduced, and the processing precision of the grinding machine is indirectly influenced. The profile grinding wheel in-place trimming machine of the embodiment enables the axis of the trimming roller 10 to be perpendicular to the axis of the grinding wheel to be ground in the trimming process, and adopts the self-rotation motion of the trimming roller, so that the trimming roller 10 is uniformly worn to ensure that the trimming precision of the grinding wheel is controllable, the service life of the trimming roller is prolonged, the precision retentivity is improved, meanwhile, the time cost is saved due to the fact that the grinding wheel does not need to be disassembled, and the machining efficiency is improved.
In another specific embodiment, motor 1 may be a micro motor of JW4522 type, the motor speed adjusting device may be a frequency converter, the motor shaft end of motor 1 is connected to first belt pulley 3 through a key and uses 1M 5 × 6 flat-end set screw to prevent radial movement of first belt pulley 3, motor 1 is fixedly connected to motor base 2 through an inner hexagon screw, motor base 2 is disposed on base plate 4 through 2M 6 × 16 hexagon head bolts, motor base 2 may adjust the position of motor base 2 in the horizontal direction through a waist-shaped hole on base plate 4 to tension belt 17, and base plate 4 is disposed on machine frame 18 through a hexagon bolt.
In a preferred embodiment, the belt 17 is a narrow V-belt, which increases the effective contact area between the belt and the pulley, prevents slippage, and improves transmission capacity. The middle planes of the V-shaped grooves of the first belt pulley 3 and the second belt pulley 9 are guaranteed to be on the same horizontal plane as far as possible, the inner side of the narrow V-shaped belt is flat, and the stability of transmission is guaranteed.
In a preferred embodiment, the transmission ratio of the transmission device is greater than 1, and the transmission device is a speed increasing belt transmission, so that the whole volume of the finisher can be reduced.
In a preferred embodiment, the axis of the dressing roller 10 and the axis of the motor 1 are in the same plane and parallel to each other, the grinding wheel to be ground is dressed in place in a self-rotating manner, and the dressing roller and the grinding wheel to be ground move relatively while rotating.
In a preferred embodiment, the profile grinding wheel dresser further comprises: and the motor speed regulating device is used for controlling the rotating speed of the motor so as to control the rotating speed of the dressing roller.
In a preferred embodiment, the motor and the first pulley are dynamically balanced after assembly to ensure finishing accuracy of the finisher.
In a preferred embodiment, the second pulley 9 is located as close to the bearing at one end as possible to reduce the effect of shear and bending moments on the trim shaft 13 over time.
The profile grinding wheel in-place finishing machine of the embodiment of the invention can be used in place, and can keep the finishing roller wheel to be uniformly worn, thereby improving the finishing precision of the grinding wheel.
The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and not to limit the invention. Any modifications and variations within the scope of the description, which may occur to those skilled in the art, are intended to be within the scope of the invention.
Claims (6)
1. An in-place profile grinding wheel dresser, comprising: the trimming device comprises a motor, a transmission device, a trimming shaft and a trimming roller;
one end of the transmission device is connected with the motor, the other end of the transmission device is connected with the trimming shaft, and the trimming roller is arranged on the trimming shaft; the transmission device is used for transmitting the energy of the motor to the trimming shaft to drive the trimming shaft to rotate so as to drive the trimming roller to rotate;
the dressing roller is arranged at one end of the dressing shaft, the roller axis of the dressing roller is vertical to the grinding wheel axis of the grinding wheel to be ground in the dressing process, and the dressing roller is used for dressing the grinding wheel to be ground in place; the trimming roller is a cylindrical trimming roller;
further comprising:
the motor comprises a motor base, a base plate and a frame; the motor is arranged on the motor base; the motor base is arranged on the base plate; further, the motor base is adjustably mounted on the base plate and used for driving the motor to move, and therefore the tightness of the transmission device is adjusted; the trimming shaft is installed in the rack through a bearing, a sealing paper gasket and a sealing cover plate are sequentially arranged at a slot of the rack, a sealing gasket is arranged at the joint of the sealing cover plate and the motor base, and the sealing cover plate is connected to the rack through a bolt;
the base plate is provided with a waist hole and is movably connected to the rack through a bolt;
a finisher frame on which the finisher is mounted; furthermore, the finisher is adjustably mounted on the finisher frame, a kidney-shaped hole is formed in the side face of the finisher frame, the side face of the finisher frame is connected with the finisher frame through a bolt, the levelness of the finisher frame can be adjusted up and down, the kidney-shaped hole is also formed in the bottom face of the finisher frame, and the kidney-shaped hole is connected with a machine tool through a T-shaped groove and nuts and used for adjusting the left position, the right position, the front position, the rear position and the up and down position of the finisher;
and the motor speed regulating device is used for controlling the rotating speed of the motor so as to control the rotating speed of the trimming roller.
2. The profile grinding wheel on-site dresser of claim 1, wherein the dresser shaft of the dresser roller is a stepped shaft.
3. The profile grinding wheel on-site dresser of claim 1, wherein a motor axis of the motor and a dressing shaft axis of the dressing roller are located on the same plane and parallel to each other.
4. The profile grinding wheel dresser of claim 1, wherein the transmission comprises: a first pulley, a second pulley, and a belt;
the first belt pulley is arranged at the motor shaft end of the motor;
the second belt pulley is arranged at one end of the trimming shaft, and the trimming roller is arranged at the other end of the trimming shaft; the first belt pulley is connected with the second belt pulley through a belt.
5. The profile grinding wheel on-site dresser of claim 4, wherein the transmission ratio of the transmission is greater than 1.
6. The profile grinding wheel on-site dressing machine according to claim 4, wherein one end of the dressing shaft is connected with the second belt pulley through a key and prevents the second belt pulley from moving radially by using a hexagon nut, a shaft sleeve is arranged in the middle of the dressing shaft and is fixedly connected with the frame through a countersunk screw, a pair of bearings are arranged at two ends of the shaft sleeve, the bearings are lubricated by lubricating oil, a pair of spacer sleeves with sealing rings are arranged at the outer sides of the bearings, and a dressing roller and a retainer ring are arranged at the other end of the dressing shaft and are fixed by using the hexagon nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175578.5A CN109366360B (en) | 2018-10-10 | 2018-10-10 | On-site trimming machine for profile grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811175578.5A CN109366360B (en) | 2018-10-10 | 2018-10-10 | On-site trimming machine for profile grinding wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109366360A CN109366360A (en) | 2019-02-22 |
| CN109366360B true CN109366360B (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811175578.5A Active CN109366360B (en) | 2018-10-10 | 2018-10-10 | On-site trimming machine for profile grinding wheel |
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| CN (1) | CN109366360B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5683290A (en) * | 1994-05-23 | 1997-11-04 | Nec Corporation | Apparatus for forming a convex tip on a workpiece |
| CN201205680Y (en) * | 2008-05-21 | 2009-03-11 | 贵阳工具厂 | Reformer for sand wheel |
| CN202106303U (en) * | 2011-05-12 | 2012-01-11 | 阜新德尔汽车转向泵有限公司 | Blade arc grinding wheel dresser |
| KR20130029174A (en) * | 2011-09-14 | 2013-03-22 | 희 수 황 | An angle adjusting type dressing tool |
| CN202862002U (en) * | 2012-09-07 | 2013-04-10 | 深圳市维可达精密科技有限公司 | Automatic grinding wheel dressing machine |
| CN203031466U (en) * | 2012-11-08 | 2013-07-03 | 深圳市金洲精工科技股份有限公司 | Grinding wheel finishing machine |
| CN105081977A (en) * | 2015-07-10 | 2015-11-25 | 郑州磨料磨具磨削研究所有限公司 | Quick and efficient shaping method of super-abrasive grinding wheel |
| CN106181605A (en) * | 2016-08-26 | 2016-12-07 | 马鞍山俊强精密机械设备有限公司 | A kind of knuckle-tooth cutter computer controlled grinding machine and method for grinding thereof |
-
2018
- 2018-10-10 CN CN201811175578.5A patent/CN109366360B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5683290A (en) * | 1994-05-23 | 1997-11-04 | Nec Corporation | Apparatus for forming a convex tip on a workpiece |
| CN201205680Y (en) * | 2008-05-21 | 2009-03-11 | 贵阳工具厂 | Reformer for sand wheel |
| CN202106303U (en) * | 2011-05-12 | 2012-01-11 | 阜新德尔汽车转向泵有限公司 | Blade arc grinding wheel dresser |
| KR20130029174A (en) * | 2011-09-14 | 2013-03-22 | 희 수 황 | An angle adjusting type dressing tool |
| CN202862002U (en) * | 2012-09-07 | 2013-04-10 | 深圳市维可达精密科技有限公司 | Automatic grinding wheel dressing machine |
| CN203031466U (en) * | 2012-11-08 | 2013-07-03 | 深圳市金洲精工科技股份有限公司 | Grinding wheel finishing machine |
| CN105081977A (en) * | 2015-07-10 | 2015-11-25 | 郑州磨料磨具磨削研究所有限公司 | Quick and efficient shaping method of super-abrasive grinding wheel |
| CN106181605A (en) * | 2016-08-26 | 2016-12-07 | 马鞍山俊强精密机械设备有限公司 | A kind of knuckle-tooth cutter computer controlled grinding machine and method for grinding thereof |
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| CN109366360A (en) | 2019-02-22 |
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