CN117161843A - Numerical control grinding machine for machining round nose milling cutter - Google Patents
Numerical control grinding machine for machining round nose milling cutter Download PDFInfo
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- CN117161843A CN117161843A CN202311452232.6A CN202311452232A CN117161843A CN 117161843 A CN117161843 A CN 117161843A CN 202311452232 A CN202311452232 A CN 202311452232A CN 117161843 A CN117161843 A CN 117161843A
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- 238000003754 machining Methods 0.000 title claims abstract description 120
- 238000000227 grinding Methods 0.000 title claims abstract description 118
- 238000003801 milling Methods 0.000 title claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 139
- 238000005498 polishing Methods 0.000 claims abstract description 30
- 230000002093 peripheral effect Effects 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 17
- 230000008569 process Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
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- 229910001651 emery Inorganic materials 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a numerical control grinding machine for machining a round nose milling cutter, and relates to the technical field of numerical control grinding machines. The grinding machine comprises: the grinder body is provided with a rotatable rotary table; the rotary table is provided with a plurality of groups of clamping assemblies, and a plurality of stations arranged along the circumference of the rotary table are also arranged on the grinding machine bed body; the plurality of stations are respectively provided with a rough grinding spiral groove mechanism, a chip flute processing mechanism, a first end tooth and arc processing mechanism, a second end tooth and arc processing mechanism, a peripheral edge processing mechanism and a spiral groove fine polishing and back carving processing mechanism; the first end tooth and arc machining mechanism is provided with a first grinding wheel, and the rotation center of a grinding edge of the first grinding wheel is coincided with the rotation center of an arc to be machined of the workpiece; the second end tooth and arc machining mechanism is provided with a second grinding wheel, and the rotation center of a grinding edge of the second grinding wheel is coincided with the rotation center of an arc to be machined of the workpiece; when a workpiece is machined, the corresponding first grinding wheel or second grinding wheel can directly and accurately machine the arc and end teeth of the workpiece, and the differential compensation process is omitted.
Description
Technical Field
The invention relates to the technical field of numerical control grinding machines, in particular to a numerical control grinding machine for machining a round nose milling cutter.
Background
Milling cutters are an important tool used in modern industrial machining, having one or more cutter teeth for milling.
Currently, a milling cutter commonly used for die machining is a round nose milling cutter. In the production and processing process of the round nose milling cutter, five-axis machine tools are mostly utilized to process the round nose milling cutter, then the round nose milling cutter is ground section by section in a differential compensation mode, and finally, an arc is formed at the end part of the round nose milling cutter. However, this machining method has problems that the machining efficiency is low and the machining accuracy is difficult to control. Therefore, we propose a numerically controlled grinder for machining a ball nose milling cutter to solve the above-mentioned problems.
Disclosure of Invention
In view of the above-described drawbacks or shortcomings in the prior art, it is desirable to provide a numerically controlled grinding machine for machining a round nose milling cutter that is efficient and has high machining accuracy.
In a first aspect, the present invention provides a numerically controlled grinder for machining a nose-to-nose milling cutter, comprising:
the grinding machine body is provided with a rotatable rotary table; the rotary table is provided with a plurality of groups of clamping assemblies for clamping a workpiece to be processed; the grinding machine body is also provided with a plurality of stations arranged along the circumference of the rotary table; the stations are respectively provided with a rough grinding spiral groove mechanism, a chip flute processing mechanism, a first end tooth and arc processing mechanism, a second end tooth and arc processing mechanism, a peripheral edge processing mechanism and a spiral groove fine polishing and back carving processing mechanism;
the first end tooth and arc machining mechanism is provided with a first grinding wheel, and the rotation center of a grinding edge of the first grinding wheel is coincided with the rotation center of an arc to be machined of a workpiece;
the second end tooth and the arc machining mechanism are provided with a second grinding wheel, and the rotation center of the grinding edge of the second grinding wheel is coincided with the rotation center of the arc to be machined of the workpiece;
and switching the workpiece on the clamping assembly to be in butt joint with the processing mechanism of each station sequentially by rotating the rotary table so as to implement corresponding processing operation.
According to the technical scheme provided by the invention, the method further comprises the following steps:
the swing angle adjusting structure is rotatably arranged on the X-direction sliding table of the spiral groove fine polishing and back carving processing mechanism and is used for adjusting the processing angle of the spiral groove fine polishing and back carving processing mechanism.
According to the technical scheme provided by the invention, the swing angle adjusting structure comprises:
the first adjusting chassis is arranged on an X-direction sliding table of the spiral groove fine polishing and back engraving processing mechanism; the first adjusting chassis is provided with a driving assembly which is provided with a first driving end;
a second adjustment chassis rotatably disposed on the first adjustment chassis for mounting a corresponding processing mechanism; the side wall of the processing mechanism is rotationally connected with the first driving end, and the first driving end is used for driving the processing mechanism to rotate on the second adjusting chassis;
and the machining angle of the corresponding machining mechanism is changed by adjusting the second adjusting chassis or the machining mechanism so as to meet the machining requirement of the workpiece to be machined.
According to the technical scheme provided by the invention, the method further comprises the following steps:
the at least two groups of limiting assemblies are arranged on the first adjusting chassis and are positioned on two sides of the second adjusting chassis;
the spacing subassembly includes:
a base disposed on the first adjustment chassis; the base is provided with an adjustable stop block, and the stop block is used for limiting the angle adjusting range of the second adjusting chassis;
a buffer member provided on the base; the buffer piece is used for relieving acting force when the second adjusting chassis is contacted with the stop block;
the detection module is arranged on the base and is in communication connection with a control unit of the numerically controlled grinder;
when the second adjusting chassis is in contact with the stop block, the detection module detects a position limit signal and transmits the position limit signal to the control unit.
According to the technical scheme provided by the invention, the method further comprises the following steps:
an adjusting chute is formed in the first adjusting chassis, a limiting edge is arranged on the inner wall of the adjusting chute, and the limiting edge is arranged close to a notch of the adjusting chute;
a positioning assembly is further arranged between the first adjusting chassis and the second adjusting chassis; the positioning assembly includes:
the locking driving piece is arranged at the bottom of the second adjusting chassis; the locking driving piece is provided with a second driving end;
a locking member having a locking portion and a connecting portion connected to each other; the connecting part is connected with the second driving end, and the locking part is positioned in the adjusting chute;
the locking driving piece drives the locking piece to move through the second driving end, so that the locking part is in surface contact with the limiting edge to lock the current position of the second adjusting chassis.
According to the technical scheme provided by the invention, the peripheral edge machining mechanism comprises:
the third rotating shaft is provided with a third grinding wheel and a fourth grinding wheel which are coaxially arranged; the diameter of the third grinding wheel is larger than that of the fourth grinding wheel;
the third grinding wheel is used for machining the peripheral edge of the workpiece to be machined, and the fourth grinding wheel is used for polishing the peripheral edge.
According to the technical scheme provided by the invention, the method further comprises the following steps:
and the feeding and discharging assembly is arranged on the grinder bed and is positioned between the peripheral edge processing mechanism and the spiral groove fine polishing and back carving processing mechanism.
According to the technical scheme provided by the invention, the first end tooth and arc machining mechanism comprises: the first base is provided with a first transmission assembly, and the first transmission assembly is provided with a rotatable first rotating shaft; the end part of the first rotating shaft is provided with the first grinding wheel;
the second end tooth and the arc machining mechanism comprise: the second base is provided with a second transmission assembly, and the second transmission assembly is provided with a rotatable second rotating shaft; the end part of the second rotating shaft is provided with the second grinding wheel.
According to the technical scheme provided by the invention, the first transmission assembly further comprises:
a first moving stage disposed on the first base, and moving in a first direction on the first base; the first direction is the length direction of the first base;
a second mobile station disposed on the first mobile station, and moving in a second direction on the first mobile station; the second direction is perpendicular to the first direction;
a first mount having a connection section and a mount section connected to each other, the connection section being connected to the second mobile station; the installation section is provided with the rotatable first rotating shaft; the first grinding wheel is arranged on the movable sliding table and moves along a third direction on the movable sliding table; the third direction is perpendicular to the first direction and the second direction.
According to the technical scheme provided by the invention, the second transmission assembly further comprises:
a third moving stage which is provided on the second base and moves in a fourth direction on the second base; the fourth direction is the length direction of the second base;
a fourth mobile station provided on the third mobile station, and moving in a fifth direction on the third mobile station; the fifth direction is perpendicular to the fourth direction;
the second installation platform is provided with a connecting section and an installation section which are connected with each other, the connecting section of the second installation platform is connected with the fourth mobile platform, and the installation section of the second installation platform is provided with the rotatable second rotating shaft.
In summary, the invention discloses a specific structure of a circular arc machining tool for a circular nose milling cutter. Six stations are arranged along the circumferential direction of a rotary table on a grinder body, and each station is respectively provided with a rough grinding spiral groove mechanism, a chip flute processing mechanism, a first end tooth and arc processing mechanism, a second end tooth and arc processing mechanism, a peripheral edge processing mechanism and a spiral groove fine polishing and back engraving processing mechanism; designing the rotation centers of a first end tooth and a first grinding wheel, a second end tooth and a second grinding wheel of the arc machining mechanism based on the distribution mode of the machining mechanism, specifically, overlapping the rotation center of a grinding edge of the first grinding wheel with the rotation center of an arc to be machined of a workpiece, and overlapping the rotation center of a grinding edge of the second grinding wheel with the rotation center of the arc to be machined of the workpiece; the rotary table is rotated, and the workpiece to be processed clamped by the clamping assembly on the rotary table is switched to be in butt joint with the processing mechanism of each station in sequence, so that corresponding processing operation is implemented. And when the first end tooth and the arc machining mechanism or the second end tooth and the arc machining mechanism machine the workpiece, the corresponding first grinding wheel or the second grinding wheel can directly and accurately machine the arc and the end tooth of the workpiece, the differential compensation process is omitted, and the obvious effects of high efficiency and high machining precision are achieved.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings.
Fig. 1 is a schematic diagram of the overall structure of the first end tooth and the arc machining mechanism.
Fig. 2 is a schematic side view of the first end tooth and the arc machining mechanism.
Fig. 3 is a schematic diagram of the overall structure of the second end tooth and the arc machining mechanism.
Fig. 4 is a schematic side view of the second end tooth and the arc machining mechanism.
Fig. 5 is a schematic diagram of the overall structure of the numerical control grinding machine.
Fig. 6 is a schematic top view of the numerical control grinder.
Fig. 7 is a schematic structural diagram of a first adjusting chassis and a second adjusting chassis.
Fig. 8 is a schematic structural view of the peripheral edge working mechanism.
Fig. 9 is a schematic structural view of the positioning assembly.
Fig. 10 is a schematic structural view of the limiting assembly.
Reference numerals in the drawings: 1. the first end tooth and arc machining mechanism; 2. the second end tooth and the arc machining mechanism; 3. a rough grinding spiral groove mechanism; 4. a chip flute processing mechanism; 5. a peripheral edge processing mechanism; 6. a spiral groove fine polishing and back carving processing mechanism; 7. feeding and discharging components; 8. a grinder bed; 9. a rotary table; 10. a first adjustment chassis; 11. a second adjustment chassis; 12. a base; 13. a stop block; 14. a buffer member; 15. a detection module; 16. adjusting the chute; 17. a locking driving member; 18. a locking member;
101. a first base; 102. a first grinding wheel; 103. a first mobile station; 104. a second mobile station; 105. a first mounting table; 106. moving the sliding table; 107. a first rotating shaft;
201. a second base; 202. a second grinding wheel; 203. a second rotating shaft; 204. a third mobile station; 205. a fourth mobile station; 206. a second mounting table;
501. a third rotating shaft; 502. a third grinding wheel; 503. and a fourth grinding wheel.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 5 and 6, a schematic structural diagram of a first embodiment of a numerically controlled grinder for machining a round nose milling cutter according to the present invention includes:
and a grinder body 8 as a basic carrier of the numerically controlled grinder. A rotatable rotary table 9 is arranged on the grinder body 8, and the rotary table 9 can rotate relative to the grinder body 8; the rotary table 9 is provided with a plurality of groups of clamping assemblies for clamping a workpiece to be processed; the grinder bed 8 is also provided with a plurality of stations arranged along the circumferential direction of the rotary table 9; the multiple stations are respectively provided with a rough grinding spiral groove mechanism 3, a chip flute processing mechanism 4, a first end tooth and arc processing mechanism 1, a second end tooth and arc processing mechanism 2, a peripheral edge processing mechanism 5 and a spiral groove fine polishing and back carving processing mechanism 6;
the machining mechanism is provided according to the machining process, and includes a rough grinding spiral groove mechanism 3, a chip flute machining mechanism 4, a first end tooth and arc machining mechanism 1, a second end tooth and arc machining mechanism 2, a peripheral edge machining mechanism 5 and a spiral groove fine polishing and back engraving machining mechanism 6 in sequence. Here, the specific structure of the clamping assembly is not limited, and the workpiece can be clamped.
The rough grinding spiral groove mechanism 3 is used for rough machining of the spiral groove; the chip flute processing mechanism 4 is used for processing the chip flute; the first end tooth and arc machining mechanism 1 is used for machining a first rear angle and an arc of the end tooth; the second end tooth and arc machining mechanism 2 is used for machining a second rear angle of the end tooth, a second rear angle of the arc and the peripheral edge; the peripheral edge machining mechanism 5 is used for machining and polishing the first relief angle of the peripheral edge; the spiral groove fine polishing and back carving processing mechanism 6 is used for fine polishing and back carving grinding of the spiral groove.
Here, the spiral groove finish polishing and back-engraving processing mechanism 6 combines two processing operations of spiral groove finish polishing and back-engraving grinding, and can improve the processing efficiency.
For example, the machining time period of the rough grinding spiral groove mechanism 3 is 90 seconds, the machining time period of the chip pocket machining mechanism 4 is 90 seconds, the machining time period of the first end tooth and the circular arc machining mechanism 1 is 90 seconds, the machining time period of the second end tooth and the circular arc machining mechanism 2 is 80 seconds+40 seconds, the machining time period of the peripheral edge machining mechanism 5 is 60 seconds+50 seconds, and the machining time period of the spiral groove fine polishing and back engraving machining mechanism 6 is 50 seconds+30 seconds. It is known that the duration of processing one workpiece is 120 seconds.
As shown in fig. 1, the first end tooth and arc machining mechanism 1 has a first grinding wheel 102, and the grinding edge rotation center of the first grinding wheel 102 coincides with the rotation center of the arc to be machined of the workpiece;
as shown in fig. 3, the second end tooth and arc machining mechanism 2 has a second grinding wheel 202, and the center of rotation of the grinding edge of the second grinding wheel 202 coincides with the center of rotation of the arc to be machined of the workpiece;
the workpiece on the clamping assembly is switched to be in butt joint with the processing mechanism of each station in sequence by rotating the rotary table 9 so as to implement corresponding processing operation.
The end teeth and the arc machining mechanism of the traditional five-axis grinding machine use a plurality of grinding wheels, and the grinding wheels need to be subjected to differential compensation when machining a workpiece, namely a control system of the five-axis grinding machine needs to calculate the machining track of the workpiece and send a motion instruction to the corresponding machining mechanism according to the calculation result, however, the machining precision of the arc formed by the section-by-section machining in a differential compensation mode is difficult to control; in addition, the traditional six-axis grinding machine can only process one by one during processing, and has high cost and low efficiency.
In the invention, the number of stations of the numerically controlled grinder is six, and according to the processing procedure, the processing mechanisms at each station are a coarse grinding spiral groove mechanism 3, a chip flute processing mechanism 4, a first end tooth and arc processing mechanism 1, a second end tooth and arc processing mechanism 2, a peripheral edge processing mechanism 5 and a spiral groove fine polishing and back carving processing mechanism 6 in sequence; designing the positions of the grinding edge rotation centers of the first grinding wheel 102 and the second grinding wheel 202 based on the distribution mode of the processing mechanism, specifically, overlapping the grinding edge rotation center of the first grinding wheel 102 with the rotation center of the arc to be processed of the workpiece, and overlapping the grinding edge rotation center of the second grinding wheel 202 with the rotation center of the arc to be processed of the workpiece; when a workpiece is machined, the first grinding wheel 102 and the second grinding wheel 202 can directly and accurately machine the arc and the end teeth of the workpiece, the differential compensation process is omitted, and the obvious effects of high efficiency and high machining precision are achieved.
Further, the method further comprises the following steps:
the swing angle adjusting structure is rotatably arranged on the X-direction sliding table of the spiral groove fine polishing and back carving processing mechanism 6 and is positioned at the bottom of each processing mechanism and used for adjusting the processing angle of the corresponding processing mechanism.
The X-direction sliding table of the spiral groove fine polishing and back engraving processing mechanism 6 refers to the sliding table located at the bottommost layer in fig. 7.
Specifically, as shown in fig. 7, the swing angle adjusting structure includes:
the first adjusting chassis 10 is arranged on an X-direction sliding table of the spiral groove fine polishing and back engraving processing mechanism 6; the first adjusting chassis 10 is provided with a driving component and is provided with a first driving end; here, the first adjustment chassis 10 is adjusted in angle by, for example, air bearing and manual adjustment of swing angle. Wherein, the air supporting means that air supporting cavities are designed on the first adjusting chassis 10 and the second adjusting chassis 11, and when the angle adjustment is needed, the air supporting cavities are inflated, so that the friction resistance during the angle adjustment is reduced. The manual adjustment of the swing angle means that the first adjustment chassis 10 is manually adjusted, so that the first adjustment chassis 10 can rotate relative to the X-direction sliding table.
A second adjustment chassis 11 rotatably provided on the first adjustment chassis 10 for mounting a corresponding processing mechanism; the side wall of the processing mechanism is rotationally connected with a first driving end, and the first driving end is used for driving the processing mechanism to rotate on a second adjusting chassis 11; here, the driving assembly is, for example, a driving cylinder.
Wherein the second adjusting chassis 11 can be rotated by means of a driving cylinder. The connection between the second adjustment chassis 11 and the first adjustment chassis 10 is, for example, by connecting the second adjustment chassis 11 and the first adjustment chassis 10 through a rotation shaft.
The connection mode of the second adjusting chassis 11 and the corresponding processing mechanism is that, for example, an arc chute is formed on the second adjusting chassis 11, a rotatable bearing is arranged at the bottom of the corresponding processing mechanism, the bearing is positioned in the arc chute, and an extension line of the axis of the bearing can vertically penetrate through the second adjusting chassis 11; the first drive end of the drive assembly applies force to the corresponding processing mechanism such that the bearing moves within the arcuate chute, allowing the corresponding processing mechanism to rotate relative to the second adjustment chassis 11.
Here, the number of arc-shaped sliding grooves is at least one, and the number of bearings is at least two.
The first adjusting chassis 10 has a first angle adjusting section, the second adjusting chassis 11 has a second angle adjusting section, and the first angle adjusting section is larger than the second angle adjusting section;
here, the first angle adjustment interval is, for example, 0 to 10 degrees, and the second angle adjustment interval is, for example, 0 to 5 degrees.
The machining angle of the corresponding machining mechanism is changed by adjusting the second adjusting chassis 11 or the machining mechanism so as to meet the machining requirement of the workpiece to be machined.
It should be noted that, the first adjusting chassis 10 is mainly designed to be compatible with workpieces of more specifications, and the second adjusting chassis 11 is mainly designed to be used for adjusting angles of two machining operations of adjacent machining mechanisms or the same machining mechanism.
The first adjusting chassis 10 and the second adjusting chassis 11 are respectively provided with a graduated scale, the graduated scale ranges of the graduated scales are consistent with the corresponding first angle adjusting interval and second angle adjusting interval, pointers are designed at positions of the second adjusting chassis 11 and the processing mechanism corresponding to the corresponding graduated scales, and when the second adjusting chassis 11 or the processing mechanism rotates, the positions of the graduated scales corresponding to the pointers can be used for intuitively obtaining the adjustment angle values.
Further, the method further comprises the following steps:
the first adjusting chassis 10 is provided with an adjusting chute 16, the inner wall of the adjusting chute 16 is provided with a limiting edge, and the limiting edge is arranged close to the notch of the adjusting chute 16; as shown in fig. 9, the cross-sectional shape of the structure formed by the adjustment chute 16 and the stopper edge is a T-shape.
A positioning component is also arranged between the first adjusting chassis 10 and the second adjusting chassis 11; as shown in fig. 9, the positioning assembly includes:
a locking driving member 17 provided at the bottom of the second adjustment chassis 11; the lock driving member 17 has a second driving end; here, the lock driving member 17 is of a type such as a driving cylinder.
A locking member 18 having a locking portion and a connecting portion connected to each other; the connecting part is connected with the second driving end, and the locking part is positioned in the adjusting chute 16;
the locking driving piece 17 drives the locking piece 18 to move through the second driving end, so that the locking part is contacted with the limiting edge surface to lock the current position of the second adjusting chassis 11.
Specifically, when the second adjustment chassis 11 needs to be adjusted, the locking driving member 17 drives the locking member 18 to move downwards, so that the locking portion of the locking member 18 is not contacted with the limiting edge and the inner wall of the adjustment chute 16, and the second adjustment chassis 11 can be freely adjusted at the moment; when the second adjusting chassis 11 is adjusted in place, the locking driving member 17 drives the locking member 18 to move upwards until the locking part and the limiting edge are in full-face contact to form contact locking, so that the current position of the second adjusting chassis 11 is locked.
It should be noted that, the first adjusting chassis 10 and the second adjusting chassis 11 are both designed with air-floating cavities, and the air-floating cavities are inflated during angle adjustment, so as to reduce friction resistance during angle adjustment.
Further, the method further comprises the following steps:
at least two sets of limiting components arranged on the first adjusting chassis 10 and positioned on two sides of the second adjusting chassis 11;
as shown in fig. 10, the limiting assembly includes:
a base 12 disposed on the first adjustment chassis 10, the base 12 being used for mounting components required for limiting; the base 12 is provided with an adjustable stop block 13, and the stop block 13 is used for limiting the angle adjustment range of the second adjustment chassis 11;
wherein, the stop 13 is a blocking structure formed by heat treatment, and the stop 13 is connected with the base 12 by, for example, screwing the stop 13 on the base 12, and the distance between the stop 13 and the base 12 can be changed by fine adjustment of a connecting screw, so as to change the adjustable angle range of the second adjusting chassis 11 relative to the first adjusting chassis 10.
A buffer 14 provided on the base 12; the buffer piece 14 is used for relieving the acting force when the second adjusting chassis 11 is contacted with the stop block 13; here, the cushioning member 14 is of a type such as a damper.
The detection module 15 is arranged on the base 12, and the detection module 15 is in communication connection with a control unit of the numerically controlled grinder; here, the detection module 15 is of the type, for example, a proximity switch sensor. The control unit is, for example, an msp430 single-chip microcomputer.
When the second adjustment chassis 11 is in contact with the stop 13, the detection module 15 detects a limit signal and transmits it to the control unit.
Further, as shown in fig. 8, the peripheral edge processing mechanism 5 includes:
a third rotating shaft 501 on which a third grinding wheel 502 and a fourth grinding wheel 503 are mounted coaxially; the diameter of the third grinding wheel 502 is larger than the diameter of the fourth grinding wheel 503; wherein, the third grinding wheel 502 is arranged at the end part of the fourth grinding wheel 503 far away from the third rotating shaft 501;
the third grinding wheel 502 is used for machining the peripheral edge of the workpiece to be machined, and the fourth grinding wheel 503 is used for polishing the peripheral edge.
Therefore, the peripheral edge machining mechanism 5 combines two machining operations of peripheral edge machining and polishing, and the peripheral edge machining mechanism 5 adopts a linear feeding mode for machining, so that compared with a traditional oblique feeding mode, the linear feeding adjusting mode is simpler, the machining space is saved, and the whole structure of the numerical control grinding machine is more integrated.
Further, the method further comprises the following steps:
the feeding and discharging assembly 7 is arranged on the grinder body 8, and the feeding and discharging assembly 7 is positioned between the peripheral edge machining mechanism 5 and the fine spiral groove fine polishing and back carving machining mechanism 6.
The specific structure of the loading and unloading assembly 7 is, for example, a bearing frame and a manipulator arranged adjacent to the bearing frame, wherein the bearing frame is provided with a first area and a second area, the first area is used for bearing a workpiece to be processed, and the second area is used for bearing a workpiece finished product; the manipulator is used for taking off the finished workpiece finished product which is processed and placing the finished workpiece on the second area, and the workpiece to be processed in the first area is mounted on the corresponding clamping assembly.
Here, the loading and unloading time is, for example, 25 seconds.
Further, the first end tooth and the arc machining mechanism 1 includes: the first base 101, the first base 101 is used for bearing the required components for machining the first relief angle and the circular arc of the end tooth of the round nose milling cutter; the first base 101 is provided with a first transmission assembly, and the first transmission assembly is provided with a rotatable first rotating shaft 107; the end of the first rotating shaft 107 is provided with a first grinding wheel 102; the first transmission assembly can drive the first grinding wheel 102 to move, so that the machining angle of the first grinding wheel 102 meets the machining requirements of the nose milling cutters of different types.
Wherein the first transmission assembly further comprises:
a first moving stage 103 provided on the first base 101, and the first moving stage 103 moves in a first direction on the first base 101; the first direction is the length direction of the first base 101; here, the longitudinal direction of the first chassis 101 is the horizontal direction in fig. 2.
The first moving platform 103 moves on the first base 101, for example, a moving track is formed on the first base 101 along a first direction, a servo motor is arranged on one side of the moving track, a driving shaft of the servo motor is connected with a screw rod, the screw rod is in threaded connection with the first moving platform 103, and the screw rod is driven to rotate by the servo motor, so that the first moving platform 103 can linearly move along the moving track.
A second mobile station 104 provided on the first mobile station 103, and the second mobile station 104 moves in a second direction on the first mobile station 103; the second direction is perpendicular to the first direction; here, the second direction is a direction perpendicular to the paper surface in fig. 2.
The implementation manner of the second mobile station 104 moving on the first mobile station 103 is consistent with the implementation manner of the first mobile station 103 moving on the first base 101, and will not be described herein.
A first mount 105 having a connection section and a mount section connected to each other, the connection section being connected to the second mobile station 104; the mounting section is provided with a rotatable first shaft 107; the end part of the first rotating shaft 107 is provided with a movable sliding table 106, the first grinding wheel 102 is arranged on the movable sliding table 106, and the first grinding wheel 102 moves on the movable sliding table 106 along a third direction; the third direction is perpendicular to the first direction and the second direction.
Wherein, as shown in fig. 2, the mounting section includes: the first installation block is connected with the connecting section, a rotatable first rotating shaft 107 is arranged on the first installation block, a lifting structure is arranged at one end, far away from the first installation block, of the first rotating shaft 107, the lifting structure is provided with an installation plate capable of moving along a third direction, and the first grinding wheel 102 is rotatably arranged on the installation plate; and, can drive the lead screw through servo motor and provide driving force for the removal of mounting panel, namely, elevation structure still has servo motor, and this servo motor's drive end and mounting panel one side are connected, can drive the mounting panel and remove in the third direction, and then drive first emery wheel 102 and remove.
Here, the first rotation shaft 107 can rotate around its connection position with the first mounting block; the third direction is the vertical direction in fig. 2.
Based on the above, the first end tooth and the arc machining mechanism 1 have a five-axis linkage structure, that is, as shown in fig. 2, five axes are three linear axes in the horizontal direction, the direction perpendicular to the paper surface, and the vertical direction, and the rotation axis of the first grinding wheel 102 and the rotation axis of the workpiece.
Further, the second end tooth and the arc machining mechanism 2 includes: the second base 201, the second base 201 is used for bearing the required components for machining the second relief angle, the circular arc and the Zhou Rendi relief angle of the end tooth of the round nose milling cutter; the second base 201 is provided with a second transmission assembly, and the second transmission assembly is provided with a rotatable second rotating shaft 203; the end part of the second rotating shaft 203 is provided with a second grinding wheel 202; the second transmission assembly can drive the second grinding wheel 202 to move, so that the machining angle of the second grinding wheel 202 can meet the machining requirements of the nose and round milling cutters of different types.
Wherein the second transmission assembly further comprises:
a third moving stage 204 provided on the second base 201, and the third moving stage 204 moves in a fourth direction on the second base 201; the fourth direction is the length direction of the second base 201; here, the length direction of the second chassis 201 is the horizontal direction in fig. 4.
The implementation manner of the third mobile station 204 moving on the second base 201 is identical to the implementation manner of the first mobile station 103 moving on the first base 101, and will not be described herein.
A fourth moving stage 205 provided on the third moving stage 204, and the fourth moving stage 205 moves in a fifth direction on the third moving stage 204; the fifth direction is perpendicular to the fourth direction; here, the fifth direction is a direction perpendicular to the paper surface in fig. 4.
The implementation manner of the fourth mobile station 205 moving on the third mobile station 204 is identical to the implementation manner of the first mobile station 103 moving on the first base 101, and will not be described herein.
A second mounting table 206 having a connecting section and a mounting section connected to each other, the connecting section of the second mounting table 206 being connected to a fourth moving table 205, the mounting section of the second mounting table 206 being provided with a rotatable second rotation shaft 203. Here, the second mounting table 206 is, for example, an L-shaped structure as shown in fig. 4, and accordingly, the connection section is a vertical section of the second mounting table 206 in fig. 4, and the mounting section is a horizontal section as shown in fig. 4.
Wherein, as shown in fig. 4, the mounting section of the second mounting table 206 includes: the second installation block is connected with the connecting section, a rotatable second main shaft is arranged on the second installation block, and an installation platform is arranged at one end of the second main shaft, which is far away from the second installation block, and is used for installing the second rotating shaft 203; here, the second spindle can be rotated about its connection position with the second mounting block.
Based on the above, the second end tooth and the arc machining mechanism 2 have a four-axis linkage structure, that is, as shown in fig. 4, four axes are two straight axes in the horizontal direction and the vertical direction, the rotation axis of the second grinding wheel 202, and the rotation axis of the workpiece.
When the workpiece processing device is used, the first grinding wheel 102 and the second grinding wheel 202 are utilized to process the arc to be processed and the end teeth of the workpiece, so that the workpiece with the arc and the end teeth is obtained.
The above description is only illustrative of the preferred embodiments of the present invention and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the invention referred to in the present invention is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present invention (but not limited to) having similar functions are replaced with each other.
Claims (10)
1. A numerically controlled grinder for machining a nose-milling cutter, comprising:
a grinder body (8), wherein a rotatable rotary table (9) is arranged on the grinder body (8); the rotary table (9) is provided with a plurality of groups of clamping assemblies for clamping a workpiece to be processed; the grinder body (8) is also provided with a plurality of stations circumferentially arranged along the rotary table (9); the stations are respectively provided with a rough grinding spiral groove mechanism (3), a chip flute processing mechanism (4), a first end tooth and arc processing mechanism (1), a second end tooth and arc processing mechanism (2), a peripheral edge processing mechanism (5) and a spiral groove fine polishing and back engraving processing mechanism (6);
the first end tooth and arc machining mechanism (1) is provided with a first grinding wheel (102), and the rotation center of a grinding edge of the first grinding wheel (102) coincides with the rotation center of an arc to be machined of a workpiece;
the second end tooth and arc machining mechanism (2) is provided with a second grinding wheel (202), and the rotation center of a grinding edge of the second grinding wheel (202) coincides with the rotation center of an arc to be machined of the workpiece;
and the rotary table (9) is rotated to switch the workpiece on the clamping assembly to be in butt joint with the processing mechanism of each station in sequence so as to implement corresponding processing operation.
2. The numerically controlled grinder for machining a ball nose milling cutter according to claim 1, further comprising:
the swing angle adjusting structure is rotatably arranged on an X-direction sliding table of the spiral groove fine polishing and back carving processing mechanism (6) and used for adjusting the processing angle of the spiral groove fine polishing and back carving processing mechanism (6).
3. The numerical control grinder for machining a ball nose and nose milling cutter according to claim 2, wherein the swing angle adjusting structure comprises:
the first adjusting chassis (10) is arranged on an X-direction sliding table of the spiral groove fine polishing and back engraving processing mechanism (6); the first adjusting chassis (10) is provided with a driving assembly and is provided with a first driving end;
a second adjusting chassis (11) rotatably arranged on the first adjusting chassis (10) for mounting a corresponding processing mechanism; the side wall of the processing mechanism is rotationally connected with the first driving end, and the first driving end is used for driving the processing mechanism to rotate on the second adjusting chassis (11);
and the machining angle of the corresponding machining mechanism is changed by adjusting the second adjusting chassis (11) or the machining mechanism so as to meet the machining requirement of a workpiece to be machined.
4. A numerically controlled grinder for machining a ball nose milling cutter according to claim 3, further comprising:
at least two groups of limiting components are arranged on the first adjusting chassis (10) and are positioned on two sides of the second adjusting chassis (11);
the spacing subassembly includes:
a base (12) provided on the first adjustment chassis (10); an adjustable stop block (13) is arranged on the base (12), and the stop block (13) is used for limiting the angle adjusting range of the second adjusting chassis (11);
a buffer (14) provided on the base (12); the buffer piece (14) is used for relieving the acting force when the second adjusting chassis (11) is contacted with the stop block (13);
the detection module (15) is arranged on the base (12), and the detection module (15) is in communication connection with a control unit of the numerically controlled grinder;
when the second adjusting chassis (11) is in contact with the stop block (13), the detection module (15) detects a position limit signal and transmits the position limit signal to the control unit.
5. A numerical control grinding machine for machining a ball nose and nose milling cutter according to claim 3 or 4, further comprising:
an adjusting chute (16) is formed in the first adjusting chassis (10), a limiting edge is arranged on the inner wall of the adjusting chute (16), and the limiting edge is arranged close to a notch of the adjusting chute (16);
a positioning assembly is further arranged between the first adjusting chassis (10) and the second adjusting chassis (11); the positioning assembly includes:
a locking driving member (17) arranged at the bottom of the second adjusting chassis (11); the locking driving piece (17) is provided with a second driving end;
a locking member (18) having a locking portion and a connecting portion connected to each other; the connecting part is connected with the second driving end, and the locking part is positioned in the adjusting chute (16);
the locking driving piece (17) drives the locking piece (18) to move through the second driving end, so that the locking part is contacted with the limiting edge surface to lock the current position of the second adjusting chassis (11).
6. A numerically controlled grinder for machining a nose and a nose milling cutter according to claim 1, wherein the peripheral edge machining mechanism (5) has:
a third rotating shaft (501) on which a third grinding wheel (502) and a fourth grinding wheel (503) are mounted coaxially; the diameter of the third grinding wheel (502) is larger than the diameter of the fourth grinding wheel (503);
the third grinding wheel (502) is used for machining the peripheral edge of a workpiece to be machined, and the fourth grinding wheel (503) is used for polishing the peripheral edge.
7. The numerically controlled grinder for machining a ball nose milling cutter according to claim 1, further comprising:
the feeding and discharging assembly (7) is arranged on the grinder body (8), and the feeding and discharging assembly (7) is located between the peripheral edge machining mechanism (5) and the spiral groove fine polishing and back engraving machining mechanism (6).
8. A numerically controlled grinder for machining a ball nose milling cutter according to claim 1, wherein the first end tooth and arc machining means (1) comprises: the first base (101), the first base (101) is provided with a first transmission component, and the first transmission component is provided with a rotatable first rotating shaft (107); the end part of the first rotating shaft (107) is provided with the first grinding wheel (102);
the second end tooth and arc machining mechanism (2) comprises: a second base (201), wherein a second transmission assembly is arranged on the second base (201), and the second transmission assembly is provided with a rotatable second rotating shaft (203); the end part of the second rotating shaft (203) is provided with the second grinding wheel (202).
9. The numerically controlled grinder for machining a ball nose and nose milling cutter according to claim 8, wherein said first transmission assembly further comprises:
a first mobile station (103) that is provided on the first base (101), and the first mobile station (103) moves in a first direction on the first base (101); the first direction is the length direction of the first base (101);
a second mobile station (104) provided on the first mobile station (103), and the second mobile station (104) moves in a second direction on the first mobile station (103); the second direction is perpendicular to the first direction;
a first mounting station (105) having a connection section and a mounting section connected to each other, the connection section being connected to the second mobile station (104); the mounting section is provided with the rotatable first rotating shaft (107); the end part of the first rotating shaft (107) is provided with a movable sliding table (106), the first grinding wheel (102) is arranged on the movable sliding table (106), and the first grinding wheel (102) moves on the movable sliding table (106) along a third direction; the third direction is perpendicular to the first direction and the second direction.
10. The numerically controlled grinder for machining a ball nose and nose milling cutter according to claim 8 or 9, wherein the second transmission assembly further comprises:
a third moving stage (204) provided on the second base (201), and the third moving stage (204) moves in a fourth direction on the second base (201); the fourth direction is the length direction of the second base (201);
a fourth mobile station (205) provided on the third mobile station (204), and the fourth mobile station (205) moves in a fifth direction on the third mobile station (204); the fifth direction is perpendicular to the fourth direction;
-a second mounting stage (206) having a connecting section and a mounting section connected to each other, the connecting section of the second mounting stage (206) being connected to the fourth moving stage (205), the mounting section of the second mounting stage (206) being provided with the second rotatable shaft (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311452232.6A CN117161843B (en) | 2023-11-03 | 2023-11-03 | Numerical control grinding machine for machining round nose milling cutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311452232.6A CN117161843B (en) | 2023-11-03 | 2023-11-03 | Numerical control grinding machine for machining round nose milling cutter |
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| CN117161843A true CN117161843A (en) | 2023-12-05 |
| CN117161843B CN117161843B (en) | 2024-03-26 |
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| CN114888688A (en) * | 2022-05-06 | 2022-08-12 | 东莞市梵宇自动化科技有限公司 | Multi-station drill bit machining center |
| CN217942893U (en) * | 2022-09-16 | 2022-12-02 | 苏州哈勒智能装备有限公司 | Five-axis linkage precision grinding machine for grinding curved surface cam |
| US20230231439A1 (en) * | 2022-01-19 | 2023-07-20 | Viettel Group | Direct-drive motor Damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202964293U (en) * | 2012-10-29 | 2013-06-05 | 深圳深蓝精机有限公司 | Fixture for grinding triangular cutter blade |
| CN207179081U (en) * | 2017-08-24 | 2018-04-03 | 九江精密测试技术研究所 | A kind of adjustable rotating limit device of limit angle |
| CN110977716A (en) * | 2019-12-25 | 2020-04-10 | 广东豪特曼智能机器有限公司 | Multi-station turret horizontal grinding machine |
| CN113997183A (en) * | 2021-11-29 | 2022-02-01 | 河北力准机械制造有限公司 | Multistation milling cutter processingequipment |
| US20230231439A1 (en) * | 2022-01-19 | 2023-07-20 | Viettel Group | Direct-drive motor Damper |
| CN114888688A (en) * | 2022-05-06 | 2022-08-12 | 东莞市梵宇自动化科技有限公司 | Multi-station drill bit machining center |
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| CN117161843B (en) | 2024-03-26 |
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