CN221111339U - Grinding wheel dressing device of vertical shaft round table grinding machine - Google Patents
Grinding wheel dressing device of vertical shaft round table grinding machine Download PDFInfo
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- CN221111339U CN221111339U CN202323046874.4U CN202323046874U CN221111339U CN 221111339 U CN221111339 U CN 221111339U CN 202323046874 U CN202323046874 U CN 202323046874U CN 221111339 U CN221111339 U CN 221111339U
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- 230000020347 spindle assembly Effects 0.000 claims abstract description 8
- 238000009966 trimming Methods 0.000 abstract description 35
- 238000000034 method Methods 0.000 description 10
- 238000003754 machining Methods 0.000 description 5
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
A grinding wheel dressing device of a vertical shaft round table grinder comprises a lathe bed, wherein the lathe bed is provided with a main shaft assembly, a dressing assembly and a turntable assembly; the spindle assembly comprises a grinding wheel which is vertically installed and has a vertical axis, and the turntable assembly is provided with an electro-permanent magnetic chuck for installing a workpiece to be ground; the trimming assembly comprises a servo motor, a screw rod, a trimmer seat, a trimming wheel motor, a trimming wheel, a trimming base, a linear guide rail and a motor mounting seat, wherein one side of the linear guide rail is connected with the trimming base, the other side of the linear guide rail is connected with the trimming base through a sliding block on the linear guide rail, the trimming wheel motor and the trimming wheel are assembled and mounted on the trimming base, the motor mounting seat is connected with the trimming base, the servo motor is fixed on the trimming base and coaxially rotates with the screw rod, a nut on the screw rod is connected with the trimming base, and the trimming wheel is parallel to the grinding wheel. The trimming device disclosed by the utility model has the advantages of compact structure, good rigidity, flatness of the molded surface of the trimmed grinding wheel being less than 0.005, better product quality after grinding the grinding wheel, higher efficiency and stability.
Description
Technical Field
The utility model relates to a dressing mechanism of a grinding machine, in particular to a grinding wheel dressing device of a vertical shaft round table grinding machine.
Background
The machining efficiency of the vertical shaft round table grinding machine in the current market is always limited by the dressing time of the grinding wheel, so that the machining efficiency of the machine tool cannot be further improved, the utilization rate of the machine tool is reduced, and the satisfaction degree of customers is influenced. Especially for grinding hard and brittle materials, the abrasive particles of the abrasive wheel are easy to be dulled, the dressing frequency of the abrasive wheel is higher, the machine tool efficiency is low, and the application of the vertical shaft round table grinder is seriously affected.
In the related technical means, the grinding wheel dressing structure of the vertical shaft round table grinding machine in the current market mainly comprises the following steps: the first is to fix the dressing wheel on the side of the column, when needing to be dressed, withdraw from the working table, reciprocate by manually rotating the dressing wheel and feed up and down, so as to realize dressing of the end face of the grinding wheel. The second is to fix the oilstone on the dressing disc by installing the dressing disc, then fix the dressing disc on the workbench, move the workbench to the grinding area of the grinding wheel, rotate the grinding head, rotate the dressing disc with the oilstone, the grinding head descends, and realize the dressing of the grinding wheel.
The structure of the dressing device of the diamond grinding wheel of the domestic prior vertical shaft round table grinding machine is shown in the attached figure 1, and the working process is as follows: the spindle 201 drives the diamond grinding wheel 203 to rotate through the spindle flange 202, the trimming disc 502 is placed on the electro-permanent magnetic chuck 503 to be sucked and fixed, the motor drives the electro-permanent magnetic chuck 503 to rotate, so that the oilstone 501 is driven to rotate, and the end face of the diamond grinding wheel 203 is trimmed through lifting of the grinding head spindle. However, in the process of grinding the workpiece by the grinding wheel 203, the abrasive particles become dull after the grinding of the grinding wheel is continued, and after the workpiece is gradually ground, an operator judges that the end face of the grinding wheel needs to be dressed. The existing dressing method is that the equipment is required to be stopped, a dressing plate 502 is placed on a workbench by an operator, and a grinding wheel and an oilstone are required to be subjected to tool setting, so that a dressing program is started to finish dressing the grinding wheel. The whole grinding wheel trimming process is long in time consumption, the labor intensity of operators is high, the machining efficiency of a machine tool is low, the utilization rate of the machine tool is low, and the intelligent degree of equipment is low.
Disclosure of utility model
The utility model aims to overcome the defects of low machining efficiency and low utilization rate of a machine tool in the prior art, and provides the grinding wheel dressing device of the vertical shaft round table grinding machine, which has high dressing machining efficiency and high utilization rate of the machine tool.
The utility model solves the technical problems and adopts the technical proposal that the grinding wheel dressing device of the vertical shaft round table grinding machine comprises a machine body, wherein the machine body is provided with a main shaft component, a dressing component and a rotary table component; the spindle assembly comprises a grinding wheel which is vertically installed and has a vertical axis, and the turntable assembly is provided with an electro-permanent magnetic chuck for installing a workpiece to be ground;
The dressing assembly comprises a servo motor, a screw rod, a dressing seat, a dressing wheel motor, a dressing wheel, a dressing seat, a linear guide rail and a motor mounting seat, wherein one side of the linear guide rail is connected with the dressing seat, the other side of the linear guide rail is connected with the dressing seat through a sliding block on the linear guide rail, the dressing wheel motor and the dressing wheel are assembled and mounted on the dressing seat, the motor mounting seat is connected on the dressing seat, the servo motor is fixed on the dressing seat and coaxially rotates with the screw rod, a nut on the screw rod is connected with the dressing seat, and the dressing wheel is parallel to the grinding wheel.
Further, the lathe bed also comprises an upright post and a Z-axis feeding assembly, and when the lathe bed works, the Z-axis feeding assembly drives the spindle assembly to move in the vertical direction on the linear guide rail on the upright post.
Further, the trimming base is fixed on the spindle assembly, the trimming disc is horizontally arranged, the trimming disc is attached to the grinding wheel on the horizontal plane, and when the trimming disc is in operation, the servo motor drives the screw rod to drive the trimming disc to move, so that the trimming disc moves on the horizontal plane.
Further, if necessary, the servo motor drives the finishing wheel to move back and forth on the horizontal plane.
Further, if necessary, the servo motor drives the finishing wheel to move left and right on the horizontal plane.
Further, the trimming base is fixed on the lathe bed, the trimmer base is vertically placed, the trimming wheel is parallel to the grinding wheel, and when the trimming wheel works, the servo motor can drive the trimming wheel to move in the vertical direction.
The utility model has the following beneficial technical effects:
1. the structure is compact, the rigidity is good, the planeness of the profile of the grinding wheel after finishing is less than 0.005, the product quality after grinding by the grinding wheel is better, the efficiency is higher and the product is more stable; 2. after the machine tool is provided with the online trimming device to automatically execute the trimming method, compared with manual trimming and manual tool setting, the machine tool reduces the time of stopping trimming and tool setting, and improves the utilization rate of the machine tool by more than 25%; meanwhile, the possibility of errors caused by manual tool setting is reduced, and the safety of the machine tool is improved.
Drawings
FIG. 1 is a schematic structural view of a mechanism related to dressing a grinding wheel of a conventional vertical shaft round table grinder;
FIG. 2 is a schematic view of the overall structure of an embodiment 1 of the dressing apparatus of the vertical axis bench grinder of the present utility model;
FIG. 3 is a top view of the relationship between O1, O2, O3, O4 of dressing apparatus embodiment 1 of the vertical spindle circular bench grinder of the present utility model;
FIG. 4 is a schematic view of a dressing assembly of example 1 of a dressing apparatus for a vertical axis bench grinder according to the utility model;
fig. 5 is a schematic overall structure of an embodiment 1 of the dressing apparatus of the vertical axis bench grinder of the present utility model.
Reference numerals illustrate:
1. A protective assembly; 2. a spindle assembly; 201. a main shaft; 202. a spindle flange; 203. grinding wheel; 3. workpiece tool setting assembly; 4. a trimming assembly; 401. a servo motor; 402. a screw rod; 403. a trimmer seat; 404. a finishing wheel motor; 405. a dressing wheel; 406. trimming the base; 407. a linear guide rail; 408. a motor mounting seat; 5. a turntable assembly; 501. oilstone; 502. a trimming disc; 503. an electro-permanent magnetic chuck; 504. a sliding table; 505. a workpiece to be ground; 6. a bed body; 7. a grinding wheel tool setting assembly; 8. a column; 9. and a Z-axis feeding assembly.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 1-5, the embodiment comprises a protection component, a spindle component, a workpiece tool setting component, a trimming component, a turntable component, a lathe bed component, a grinding wheel tool setting component, a stand column component and a Z-axis feeding component, wherein the turntable component 5 is supported by the lathe bed 6, the workpiece tool setting component 3 and the trimming component 4 are connected with the side surface of a spindle box of the spindle component 2 through screws, the spindle component 2 vertically moves through the Z-axis feeding component 9 and simultaneously guides in the vertical direction through a linear guide rail on the stand column 8, the spindle component 2 and the Z-axis feeding component 9 are both installed on the stand column 8, and the stand column 8 and the lathe bed 6 are connected and supported through four-point adjusting screws;
The spindle assembly 2 comprises a spindle 201, a spindle flange 202 and a grinding wheel 203, wherein the spindle 201, the spindle flange 202 and the grinding wheel 203 are sequentially and concentrically connected from top to bottom, and the grinding wheel 203 is vertically installed with a vertical axis.
The turntable assembly 5 is provided with an electro-permanent magnetic chuck 503 for mounting a workpiece 505 to be ground, and one end surface of the grinding wheel faces the electro-permanent magnetic chuck.
The dressing assembly 4 comprises a servo motor 401, a screw rod 402, a dressing seat 403, a dressing wheel motor 404, a dressing wheel 405, a dressing base 406, a linear guide rail 407 and a motor mounting seat 408, wherein the screw rod 402 is a ball screw rod, one side of the dressing base 406 is mounted on the main shaft assembly 2, the linear guide rail 407 is mounted on the other side, the linear guide rail 407 is connected with the dressing seat 403, the servo motor 401, the motor mounting seat 408 and the screw rod 402 are sequentially mounted from top to bottom, the dressing wheel motor 404 is mounted below the dressing seat 403 through screws and drives the dressing wheel 405 to rotate, the dressing wheel 405 is parallel to the grinding wheel 203, the servo motor 401 drives the screw rod 402 to rotate so as to drive nuts on the screw rod 402 to move up and down, and accordingly the dressing wheel 405 is driven to move up and down through the dressing seat 403;
the electric permanent magnet sucker is characterized in that the rotation center of the electric permanent magnet sucker is O1, the rotation center of the grinding wheel is O2, the rotation center of the dressing wheel is O3, the rotation center of the electric permanent magnet sucker O1 and the rotation center of the dressing wheel O3 are located on the round edge of the grinding wheel, the O1, the O2 and the O3 are distributed in a right triangle, and the rotation center of the dressing wheel O3 is arranged on the side edge of the rotation center of the grinding wheel O2. The axis center of the upright post 8 is O4, the main shaft component 2 moves up and down on the upright post 8, and O1, O2 and O4 are on the same straight line.
The dresser holder 403 is vertically placed while the dresser wheel 405 is parallel to the grinding wheel 203, the servo motor 401 drives the lead screw 402 to move and drives the dresser wheel 405 to move up and down in the vertical direction, and the dresser wheel rotation center O3 is arranged on the left side of the grinding wheel rotation center O2.
Example 2
Unlike embodiment 1, the dresser holder 403 is horizontally disposed, and the dresser wheel 405 is attached to the grinding wheel 203 in a horizontal plane, that is, the dresser wheel 405 is attached to an end surface of the grinding wheel 203, and the servo motor 401 drives the screw 402 to drive and drives the dresser wheel 405 to move forward and backward in the horizontal plane.
Example 3
Unlike embodiment 2, the servo motor 401 drives the screw 402 and drives the dresser disk 405 to move left and right in the horizontal plane.
Working operation procedure of the embodiment: under the condition that the end face of the grinding wheel 203 can normally grind a workpiece, continuously acquiring the detection current of the motor of the grinding wheel 203;
If the detected current reaches a first current threshold value 16A, controlling a dressing wheel 405 to move from a predetermined position to the end face of the grinding wheel 203 to dress the grinding wheel 203; the preset position is spaced from the end face of the grinding wheel 203 by a preset safety distance; the specific working process is as follows: the servo motor 401 drives the screw rod 402 to drive the finishing wheel 405 to move and rapidly approach the end surface of the grinding wheel 203, meanwhile, the finishing wheel 405 rotates at a certain speed, when the end surface of the finishing wheel 405 approaches the end surface of the grinding wheel 203 by a small distance, the program controls the finishing wheel 405 to contact the end surface of the grinding wheel 203 at a certain feeding speed, and the screw rod 402 is driven by the servo motor 401 to realize the up-down or left-right feeding of the finishing wheel 405, so that the finishing of the grinding wheel 203 is realized;
If the detected current changes along with dressing of the grinding wheel 203 to be lower than a second current threshold 13A, controlling the dressing wheel 405 to be far away from the end face of the grinding wheel 203 and returning to a preset position; the first current threshold is greater than the second current threshold. The specific working process is as follows: the servo motor 401 drives the screw rod 402 to drive the finishing wheel 405 to move, so that the end face of the finishing wheel 405 is separated from the end face of the grinding wheel 203, the separation position of the finishing wheel 405 and the grinding wheel 203 is automatically recorded, the grinding process is finished online, the grinding wheel 203 continues to grind a workpiece, and the finishing wheel 405 is stopped below the grinding wheel 203 and keeps a certain safety distance.
The grinding resistance of the grinding wheel 203 is proportional to the detection current; the specific relation is as follows:
T=9550P/n ①
P=U*I/1000 ②
Wherein T is torque (N.m), P is power (Kw), n is rotation speed (rpm), U is working voltage (V), and I is working current (A).
The dressing wheel 405 is controlled to move from a predetermined position toward the end face of the grinding wheel 203 and to dress the grinding wheel 203, specifically, the dressing wheel 405 is controlled to move up and down on a vertical plane or to move back and forth or left and right on a horizontal plane.
The instructions of the described working processes can be stored in a readable storage medium in a programmable manner, for example, a non-transitory computer readable storage medium, such as ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.; the associated instructions are responsible for execution by the processor to increase the degree of intelligentization of the wheel dressing apparatus.
The foregoing are preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
All equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (4)
1. The grinding wheel dressing device of the vertical shaft round table grinding machine comprises a machine body (6), and is characterized in that a main shaft assembly (2), a dressing assembly (4) and a rotary table assembly (5) are arranged on the machine body (6); the spindle assembly (2) comprises a grinding wheel (203) which is vertically installed and has a vertical axis, and the turntable assembly (5) is provided with an electro-permanent magnet chuck (503) for installing a workpiece (505) to be ground;
The dressing assembly (4) comprises a servo motor (401), a screw rod (402), a dressing seat (403), a dressing wheel motor (404), a dressing wheel (405), a dressing base (406), a linear guide rail (407) and a motor mounting seat (408), wherein one side of the linear guide rail (407) is connected with the dressing base (406), the other side of the linear guide rail is connected with the dressing seat (403) through a sliding block on the linear guide rail (407), the dressing wheel motor (404) and the dressing wheel (405) are assembled and mounted on the dressing base (406), the motor mounting seat (408) is connected on the dressing base (406), the servo motor (401) is fixed on the dressing base (406) and coaxially rotates with the screw rod (402), a nut on the screw rod (402) is connected with the dressing seat (403), and the dressing wheel (405) is parallel to the grinding wheel (203); the lathe bed (6) further comprises an upright post (8) and a Z-axis feeding assembly (9), and the Z-axis feeding assembly drives the main shaft assembly (2) to move in the vertical direction on a linear guide rail (407) on the upright post (8); the dressing base (406) is fixed on the spindle assembly (2), the dressing wheel seat (403) is horizontally arranged, the dressing wheel (405) is attached to the grinding wheel (203) on the horizontal plane, and the servo motor (401) drives the screw rod (402) to drive the dressing wheel seat (403) to move, so that the dressing wheel (405) moves on the horizontal plane.
2. The grinding wheel dressing apparatus of a vertical shaft round bench grinder according to claim 1, characterized in that the servo motor (401) drives the dressing wheel (405) to move back and forth on a horizontal plane.
3. The grinding wheel dressing apparatus of a vertical shaft round bench grinder according to claim 1, characterized in that the servo motor (401) drives the dressing wheel (405) to move left and right on the horizontal plane.
4. The grinding wheel dressing device of the vertical shaft round bench grinder according to claim 1, characterized in that the dressing base (406) is fixed on the lathe bed (6), the dressing base (403) is vertically placed, the dressing wheel (405) is parallel to the grinding wheel (203), and the servo motor (401) drives the dressing wheel (405) to move in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323046874.4U CN221111339U (en) | 2023-11-13 | 2023-11-13 | Grinding wheel dressing device of vertical shaft round table grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323046874.4U CN221111339U (en) | 2023-11-13 | 2023-11-13 | Grinding wheel dressing device of vertical shaft round table grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221111339U true CN221111339U (en) | 2024-06-11 |
Family
ID=91361871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323046874.4U Active CN221111339U (en) | 2023-11-13 | 2023-11-13 | Grinding wheel dressing device of vertical shaft round table grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221111339U (en) |
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2023
- 2023-11-13 CN CN202323046874.4U patent/CN221111339U/en active Active
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