CN210757184U - Grinding wheel dresser with adjustable horizontal included angle - Google Patents
Grinding wheel dresser with adjustable horizontal included angle Download PDFInfo
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- CN210757184U CN210757184U CN201921752201.1U CN201921752201U CN210757184U CN 210757184 U CN210757184 U CN 210757184U CN 201921752201 U CN201921752201 U CN 201921752201U CN 210757184 U CN210757184 U CN 210757184U
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- rotating shaft
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Abstract
The utility model discloses a grinding wheel dresser capable of adjusting horizontal included angle, which comprises a fixed seat and a rotatable bearing seat arranged on the fixed seat, wherein a rotating shaft is arranged at the central position of the bearing seat through a bearing, a driving piece used for driving the rotating shaft to rotate is connected at the rear end position of the rotating shaft, a rotating head is fixedly connected at the front end of the rotating shaft, the end part of the rotating head is connected with a diamond pen mounting seat, a diamond pen is fixedly arranged on the diamond pen mounting seat, and the diamond pen is arranged at a position close to the edge of the diamond pen mounting; the connecting block is fixedly arranged at the lower position of the bearing seat, the convexity curve trimmed by the utility model is mechanically formed, the stability is good, and the symmetry is high; the convexity is adjusted visually, simply and easily; the mechanical mechanism is simpler, and the number of easily damaged parts is less; the convexity trimming adopts a mapping relation, and a trace convexity is put on a larger motion track to be controlled, so that the operation is more convenient; the complex operation in the conventional electrical interpolation trimming is avoided.
Description
Technical Field
The utility model belongs to the technical field of the abrasive wheel dresser, concretely relates to abrasive wheel dresser of adjustable horizontal contained angle.
Background
At present, in roller bearings with high quality requirements, the surface of the bearing raceway, i.e. the position where the roller contacts, is provided with a certain convexity, i.e. the lateral contact surface of the roller with the raceway in the bearing is not a line but a point. Thus, the roller can run in the roller path with convexity to reduce the rolling friction resistance, and the lubricating oil can easily enter the rolling joint surface.
The convexity of the bearing raceway is currently ground by a grinding wheel on the market. The method shown in fig. 4 is adopted for dressing the convexity of the grinding wheel, i.e. a rotating shaft is horizontally designed on one side of the rotation center line of the grinding wheel and below (or above) the rotation center line of the grinding wheel, a vertical rod is fixed on one side of the rotating shaft, a diamond pen is arranged on the rotating shaft, and the other side of the rotating shaft is driven by a rotating cylinder (or a servo motor).
When the grinding wheel rotates, the diamond pen rotates around the rotating shaft under the driving of the optional cylinder, the highest (or lowest) point of the rotation of the diamond pen is close to (or coincident with) the rotation center line of the grinding wheel, so that the outer edge of the grinding wheel can be trimmed into a shape with a slightly concave middle and slightly convex two sides, and the bearing ring is ground by the trimmed grinding wheel, so that the required convexity shape can be obtained.
As shown in fig. 5 to 6, when the convexity size is adjusted, △ OXA includes:
wherein OA is the grinding wheel radius D/2,
the height H of the diamond pen tangent to the grinding wheel on the vertical plane is as follows:
therefore, the camber e trimmed by such a double-circle tangent is:
d- -grinding wheel diameter (mm)
r- -Diamond pen radius of gyration (mm)
L- -grinding wheel width (mm)
From the equation (1), it can be seen that the convexity e varies with the radius r of revolution of the diamond pen while maintaining the diameter Φ D and the width L of the grinding wheel constant, and the convexity e decreases as r increases. By adjusting the turning radius r of the diamond pen, a corresponding convexity e value can be obtained.
With the gradual reduction of the diameter phi D of the grinding wheel in the grinding process, the convexity e is increased under the condition of keeping the turning radius r of the diamond pen unchanged. After the convexity e is increased, under the condition that the highest operating point of the diamond pen is kept to be coincident with the central line of the grinding wheel, the distance between the diamond pen and the rotating shaft, namely the size of r, is adjusted, and the corrected convexity can be adjusted, as shown in fig. 7.
However, the adjustment of the convexity of the grinding wheel has a problem that the heights of the workpiece on the grinding machine and the grinding wheel are constant, namely the height of the center of the grinding wheel is a constant value, and when the highest operating point of the diamond pen is kept coincident with the center line of the grinding wheel, only the height position of the rotating shaft, namely the position of the rotation center of the diamond pen, can be adjusted.
Because the diamond pen is rigidly connected with the rotating shaft, the diamond pen also moves when the height of the rotating shaft is adjusted!
Although it was also previously analyzed that symmetrical crown shapes could be ground when the highest (or lowest) point of travel of the diamond stylus was not on the centre line of revolution of the grinding wheel. However, in practice, if the height of the center of rotation of the diamond pen is not changed, the required convexity and contour shape cannot be trimmed in most cases.
Therefore, at present, the height of the turning center of the diamond pen can be adjusted in turn only after the turning radius of the diamond pen is adjusted! Because the two adjusting schemes are mutually involved, the mechanical design is complex, and the operation personnel are very troublesome in field adjustment, so that the requirement of convexity adjustment can hardly be met.
Disclosure of Invention
The utility model provides a solve above-mentioned technical problem, provide a but horizontal contained angle's grinding wheel dresser, can be when the maintenance of emery wheel, through rotatory pull rod, make the bearing frame rotatory around self centre of gyration to make the plane of gyration of buddha's warrior attendant pen produce certain inclination and change, change buddha's warrior attendant pen and the contained angle of emery wheel contact, change the emery wheel convexity size of repairing then, easy operation, convenient, the precision is high, is favorable to improving the dressing efficiency and the quality of emery wheel.
The utility model adopts the technical proposal that: a grinding wheel dresser capable of adjusting a horizontal included angle comprises a fixed seat and a bearing seat rotatably mounted on the fixed seat, wherein a rotating shaft is mounted in the center of the bearing seat through a bearing, a driving piece used for driving the rotating shaft to rotate is connected to the rear end of the rotating shaft, a rotating head is fixedly connected to the front end of the rotating shaft, a diamond pen mounting seat is connected to the end of the rotating head, a diamond pen is fixedly mounted on the diamond pen mounting seat, and the diamond pen is mounted at a position close to the edge of the diamond pen mounting seat; the lower end position of the connecting block is connected with a double-shaft rotary pull rod assembly used for driving the bearing block to rotate around the self rotation center.
The double-shaft rotating pull rod assembly comprises a rotating seat, a pull rod and a columnar nut, the rotating seat is rotatably installed on the surface of the fixed seat, one end of the pull rod is connected to the rotating seat, the columnar nut is rotatably arranged in the inner position of the connecting block, the central axis of the columnar nut is parallel to the rotation axis of the rotating seat, a threaded hole is radially formed in the columnar nut, and the threaded end of the pull rod is located in the threaded hole and is in threaded connection with the columnar nut.
A round hole and three arc holes are formed in the bearing block, the circle center of a central arc line of each arc hole coincides with the center of the corresponding round hole, a rotating rod used for positioning the fixing seat and the bearing block is installed in each round hole, and a locking bolt used for fixing the bearing block and the fixing seat is installed in each arc hole.
The driving piece is a rotary cylinder or a servo motor.
The diamond pen mounting device comprises a fixed seat and a bearing seat rotatably mounted on the fixed seat, wherein a rotating shaft is mounted in the center of the bearing seat through a bearing, a driving piece for driving the rotating shaft to rotate is connected to the rear end of the rotating shaft, a rotating head is fixedly connected to the front end of the rotating shaft, a diamond pen mounting seat is connected to the end of the rotating head, a diamond pen is fixedly mounted on the diamond pen mounting seat, and the diamond pen is mounted at a position close to the edge of the diamond pen mounting seat; the purpose of this is: the rotatable installation of bearing frame is on the fixing base for the contained angle of diamond pen self axis and the horizontal plane that is connected with the bearing frame can be adjusted and control, thereby realizes the slope of diamond pen rotation plane, when repairing the emery wheel, through the rotation angle of adjusting bearing frame, the convexity size of control emery wheel repairment that can be accurate, easy operation, convenient.
The diamond pen is fixedly arranged on the diamond pen mounting seat and is arranged at a position close to the edge of the diamond pen mounting seat; the purpose of this is: the axis of the diamond pen is not coincident with the rotating shaft, so that the trimming range of the diamond pen is enlarged along with the rotating process of the rotating shaft, and the difficulty of trimming the grinding wheel is reduced.
The lower end of the connecting block is connected with a double-shaft rotary pull rod assembly used for driving the bearing block to rotate around the rotation center of the bearing block; the purpose of this is: the device is used for utilizing the double-shaft rotary pull rod assembly to realize accurate control of the rotation angle of the bearing seat and control of the convexity of the grinding wheel, and is high in precision and good in stability.
The utility model has the advantages that:
1) the convexity curve repaired by the utility model is mechanically formed, the stability is good, and the symmetry is high;
2) the convexity is adjusted visually, simply and easily;
3) the mechanical mechanism is simpler, and the number of easily damaged parts is less;
4) the convexity trimming adopts a mapping relation, and a trace convexity is put on a larger motion track to be controlled, so that the operation is more convenient;
5) the complex operation in the conventional electrical interpolation trimming is avoided.
Drawings
Fig. 1 is a schematic structural view of the present invention in a static working state;
FIG. 2 is a schematic structural view after adjustment of the horizontal included angle of the present invention;
fig. 3 is a structural diagram of the dual-axis twist beam assembly of the present invention;
FIG. 4 is a diagram of a prior art wheel dresser;
FIG. 5 is a first diagram of the motion trace of a diamond pen during the dressing process of a grinding wheel in the prior art;
FIG. 6 is a second diagram of the motion trajectory of a diamond pen during the dressing process of a grinding wheel in the prior art;
FIG. 7 is a schematic diagram illustrating the adjustment of the turning radius r of a diamond pen during the dressing of a grinding wheel in the prior art;
fig. 8 is a schematic diagram of the change of the convexity of the diamond pen after being tilted.
The labels in the figure are: 1. a fixed seat; 2. a bearing seat; 3. a rotating shaft; 4. a drive member; 5. rotating the head; 6. a diamond pen mounting seat; 7. a diamond pen; 8. connecting blocks; 9. a rotating base; 10. a pull rod; 11. a columnar nut; 12. a rotating rod; 13. an arc-shaped hole; 14. and (5) grinding wheels.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 to 3 and 8, a grinding wheel dresser with an adjustable horizontal included angle 14 comprises a fixed seat 1 and a bearing seat 2 rotatably mounted on the fixed seat 1, wherein a rotating shaft 3 is mounted at the center of the bearing seat 2 through a bearing, a driving piece 4 for driving the rotating shaft 3 to rotate is connected at the rear end of the rotating shaft 3, a rotating head 5 is fixedly connected at the front end of the rotating shaft 3, a diamond pen mounting seat 6 is connected at the end part of the rotating head 5, a diamond pen 7 is fixedly mounted on the diamond pen mounting seat 6, and the diamond pen 7 is mounted at a position close to the edge of the diamond pen mounting seat 6; the lower position of bearing frame 2 is fixedly provided with a connecting block 8, and the lower end position of connecting block 8 is connected with a double-shaft rotating pull rod 10 component for driving bearing frame 2 to rotate around the rotation center of the rotating shaft.
In fig. 3, the double-shaft rotating pull rod 10 assembly includes a rotating seat 9, a pull rod 10 and a cylindrical nut 11, the rotating seat 9 is rotatably installed on the surface of the fixed seat 1, the rotation center of the rotating seat is O1, one end of the pull rod 10 is connected to the rotating seat 9, the cylindrical nut 11 is rotatably installed inside the connecting block 8, the rotation center of the cylindrical nut is O2, the central axis of the cylindrical nut 11 and the rotation axis 3 line of the rotating seat 9 are parallel to each other, a threaded hole is radially formed in the cylindrical nut 11, the threaded end of the pull rod 10 is located in the threaded hole and is in threaded connection with the cylindrical nut 11, during operation, the rotating pull rod 10 rotates around the center of the rotating rod 12 by utilizing the threaded fit between the pull rod 10 and the cylindrical nut 11, so that the pull rod 10 rotates along with the rotation center O1 of the rotating seat 9, the cylindrical nut 11 rotates (around the rotation center O2), and at the same time, the bearing seat 2 connected with the connecting seat can be driven to rotate around the center of the rotating rod 12, and at a certain angle α in a certain angle is generated on the rotation plane of the diamond pen 7, thereby changing the included angle of the diamond pen.
A round hole and three arc hole 13 have been seted up on bearing frame 2, and the centre of a circle of the central pitch arc in three arc hole 13 coincides mutually with the center of round hole, installs the bull stick 12 that is used for fixing a position fixing base 1 and bearing frame 2 in the round hole, installs the locking bolt that is used for fixing bearing frame 2 and fixing base 1 in the three arc hole 13.
The driving piece 4 is a rotary cylinder or a servo motor.
When the grinding wheel dresser works, the rotating shaft 3 is driven to rotate by a servo motor or a rotating cylinder, and under the connection of the rotating head 5 and the diamond pen mounting seat 6, the diamond pen 7 rotates around the center of the rotating shaft 3 and is close to the grinding wheel 14, so that the grinding wheel 14 is dressed; when in dressing, the highest (or lowest) point of the rotation of the diamond pen 7 is close to (or coincident with) the rotation center line of the grinding wheel 14, so that the grinding wheel 14 can be dressed into a shape with a slightly concave middle part and slightly convex two sides; along with 14 radial diminishing gradually of emery wheel, in order to guarantee that 14 convexity sizes of emery wheel satisfy the real work needs, through rotatory pull rod 10, the pull rod 10 that makes drives cylindrical nut 11 motion, when cylindrical nut 11 moves, when rotatory around self axis, its motion trail also can move around the centre of rotation of bearing frame 2 (being the central axis of bull stick 12), thereby it is rotatory to drive connecting block 8, the rotation of connecting block 8 drives bearing frame 2 and rotates around self centre of rotation, realize the slope of 7 rotation planes of buddha's warrior attendant pen, change the contained angle of 7 and the contact of emery wheel 14 of buddha's warrior attendant, thereby change the convexity size of repairing.
Claims (4)
1. The utility model provides a grinding wheel dresser of adjustable horizontal contained angle which characterized in that: the diamond pen mounting device comprises a fixing seat and a bearing seat rotatably mounted on the fixing seat, wherein a rotating shaft is mounted in the center of the bearing seat through a bearing, a driving piece for driving the rotating shaft to rotate is connected to the rear end of the rotating shaft, a rotating head is fixedly connected to the front end of the rotating shaft, a diamond pen mounting seat is connected to the end of the rotating head, a diamond pen is fixedly mounted on the diamond pen mounting seat, and the diamond pen is mounted at a position close to the edge of the diamond pen mounting seat; the lower end position of the connecting block is connected with a double-shaft rotary pull rod assembly used for driving the bearing block to rotate around the self rotation center.
2. The adjustable horizontal included angle wheel dresser of claim 1, wherein: the double-shaft rotating pull rod assembly comprises a rotating seat, a pull rod and a columnar nut, the rotating seat is rotatably installed on the surface of the fixed seat, one end of the pull rod is connected to the rotating seat, the columnar nut is rotatably arranged in the inner position of the connecting block, the central axis of the columnar nut is parallel to the rotation axis of the rotating seat, a threaded hole is radially formed in the columnar nut, and the threaded end of the pull rod is located in the threaded hole and is in threaded connection with the columnar nut.
3. The adjustable horizontal included angle wheel dresser of claim 1, wherein: a round hole and three arc holes are formed in the bearing seat, the circle center of a central arc line of each arc hole coincides with the center of the corresponding round hole, a rotating rod used for positioning the fixing seat and the bearing seat is installed in each round hole, and a locking bolt used for fixing the bearing seat and the fixing seat is installed in each arc hole.
4. The adjustable horizontal included angle wheel dresser of claim 1, wherein: the driving piece is a rotary cylinder or a servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921752201.1U CN210757184U (en) | 2019-10-18 | 2019-10-18 | Grinding wheel dresser with adjustable horizontal included angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921752201.1U CN210757184U (en) | 2019-10-18 | 2019-10-18 | Grinding wheel dresser with adjustable horizontal included angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210757184U true CN210757184U (en) | 2020-06-16 |
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ID=71062465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921752201.1U Active CN210757184U (en) | 2019-10-18 | 2019-10-18 | Grinding wheel dresser with adjustable horizontal included angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210757184U (en) |
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2019
- 2019-10-18 CN CN201921752201.1U patent/CN210757184U/en active Active
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