CN109496174B - Cutting assembly, cutting equipment and cutting method - Google Patents
Cutting assembly, cutting equipment and cutting method Download PDFInfo
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- CN109496174B CN109496174B CN201780036091.6A CN201780036091A CN109496174B CN 109496174 B CN109496174 B CN 109496174B CN 201780036091 A CN201780036091 A CN 201780036091A CN 109496174 B CN109496174 B CN 109496174B
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- cutting
- spindle
- tool
- main shaft
- cutter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/013—Control or regulation of feed movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Control Of Cutting Processes (AREA)
Abstract
A cutting assembly (10) comprises a spindle (12), a cutter (11) and an auxiliary connecting mechanism (13), wherein the auxiliary connecting mechanism (13) comprises a transmission mechanism (131) and an adjusting mechanism (132), the transmission mechanism (131) is connected with the spindle (12) and the cutter (11), in the process that the spindle (12) drives the cutter (11) to synchronously move along a preset track, the transmission cutter (11) rotates around a rotating shaft (112) parallel to the axial lead (121) of the spindle (12), and the adjusting mechanism (132) is used for adjusting the relative position relation of the cutter (11) relative to the spindle (12) around the spindle (12) in the process that the spindle (12) drives the cutter (11) to synchronously move along the preset track, so that a cutting point on the outer periphery of the cutter is kept on the axial lead (121) of the spindle (12). The cutting assembly enables the cutting track formed by the cutting points on the outer periphery of the cutter to be the same as the moving track of the main shaft, reduces or even eliminates the problem of cutting deformation, has a simple structure, does not need a cutter repairing process, and reduces the process cost and the labor cost.
Description
Technical Field
The invention relates to the field of cutting machining, in particular to a cutting assembly, cutting equipment and a cutting method.
Background
In the cutting process in the field of numerical control, generally, a tool coaxial with a spindle is moved and rotated by controlling the spindle to move and rotate, so that the tool follows the spindle to cut, but this cutting method has a problem that a moving track of the spindle is not the same as a cutting track formed by cutting points on the outer periphery of the tool, and thus, cutting deformation is caused.
Disclosure of Invention
The invention mainly provides a cutting assembly, cutting equipment and a cutting method, and aims to solve the problem that when cutting is carried out, the moving track of a main shaft and the cutting track formed by cutting points on the outer periphery of a cutter are not the same track, so that cutting deformation is caused.
In order to solve the technical problems, the invention adopts a technical scheme that: providing a cutting assembly, wherein the cutting assembly comprises a spindle, a tool, a controller and an auxiliary connecting mechanism connected to the spindle and the tool, wherein the auxiliary connecting mechanism comprises a transmission mechanism and an adjusting mechanism, the transmission mechanism is connected to the spindle and the tool and transmits the tool to rotate around a rotation axis parallel to an axial lead of the spindle in a process that the spindle drives the tool to move synchronously along a preset track, the adjusting mechanism is used for adjusting a relative position relationship of the tool relative to the spindle around the spindle in a process that the spindle drives the tool to move synchronously along the preset track, so that a cutting point on an outer periphery of the tool is kept on the axial lead of the spindle, the controller stores a preset track equation so as to control the spindle to drive the tool to move synchronously along the preset track according to the track equation, and controlling the adjusting mechanism to adjust the relative position relation of the cutter relative to the main shaft according to the track equation.
In order to solve the technical problem, the invention adopts another technical scheme that: a cutting apparatus is provided, wherein the cutting apparatus comprises the cutting assembly described above.
In order to solve the technical problem, the invention adopts another technical scheme that: a cutting method based on a cutting assembly is provided, wherein the method comprises: controlling the main shaft to drive the cutter to synchronously move along a preset track and driving the cutter to rotate; controlling a cutting point on an outer periphery of the tool to be maintained on an axis of the spindle.
The invention has the beneficial effects that: different from the situation of the prior art, the cutting assembly provided by the invention comprises a main shaft, a cutter, a controller and an auxiliary connecting mechanism connected with the main shaft and the cutter, wherein the auxiliary connecting mechanism comprises a transmission mechanism and an adjusting mechanism, the transmission mechanism is connected with the main shaft and the cutter, the transmission cutter rotates around a rotating shaft parallel to the axial lead of the main shaft in the process that the main shaft drives the cutter to synchronously move along a preset track, the adjusting mechanism is used for adjusting the relative position relation of the cutter relative to the main shaft around the main shaft in the process that the main shaft drives the cutter to synchronously move along the preset track, so that the cutting points on the outer periphery of the cutter are kept on the axial lead of the main shaft, the cutting track formed by the cutting points on the outer periphery of the cutter is the same as the moving track of the main shaft, the problem of cutting deformation is reduced or even eliminated, the structure, the process cost and the labor cost are reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic block diagram of an embodiment of a cutting assembly provided by the present invention;
FIG. 2 is a schematic view of a further construction of the transmission of FIG. 1;
FIG. 3 is a schematic view of the spindle of FIG. 1 moving along a predetermined trajectory;
FIG. 4 is a schematic flow diagram of a cutting assembly-based cutting method provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a cutting assembly 10 provided in the present invention, where the cutting assembly 10 of the present embodiment includes a tool 11, a spindle 12, and an auxiliary connecting mechanism 13 connected to the tool 11 and the spindle 12.
The cutter 11 has a plurality of cutting points 111 on its outer periphery, and a rotating shaft 112 is provided coaxially with the cutter 11 so that the cutter 11 can rotate about the rotating shaft 112 to cut through the cutting points 111 on the outer periphery of the cutter 11.
The spindle 12 is rotatable and movable along a predetermined trajectory.
The preset track may be a straight line, a curve, or a combination of a straight line and a curve, and the main shaft 12 keeps rotating during moving along at least one of the preset tracks.
Further, the main shaft 12 can drive the cutter 11 to move synchronously when moving along the preset track.
Specifically, the main shaft 12 is parallel to the rotating shaft 112, and the cutting assembly 10 of this embodiment further includes a support 14, the support 14 includes a first sub-support 141 and a second sub-support 142, the first sub-support 141 is rotatably connected to the main shaft 12, the second sub-support 142 is rotatably connected to the rotating shaft 112, the first sub-support 141 is fixedly connected to the second sub-support 142, so that when the main shaft 12 moves along a preset track, the first sub-support 141 moves synchronously along with the main shaft 12, the first sub-support 141 drives the second sub-support 142 to move synchronously, and then the second sub-support drives the tool 11 to move synchronously through the rotating shaft 112.
The auxiliary connecting mechanism 13 includes a transmission mechanism 131 and an adjusting mechanism 132.
The transmission mechanism 131 connects the main shaft 12 and the tool 11, and transmits the tool to rotate around the rotation axis 112 parallel to the axial line 121 of the main shaft 12 in the process that the main shaft 12 drives the tool 11 to move synchronously along the preset track.
Specifically, the transmission mechanism 131 includes a first transmission wheel 1311 and a second transmission wheel 1312, the first transmission wheel 131 is disposed coaxially with the spindle 12, so that when the spindle 12 rotates, the first transmission wheel 1311 rotates along with the spindle 12, the second transmission wheel 1312 is disposed coaxially with the tool 11, in this embodiment, the second transmission wheel 1312 is disposed coaxially with the rotation axis 112, and the second transmission wheel 1312 is in meshing transmission with the first transmission wheel 1311, so that the tool 11 is driven to rotate around the rotation axis 112 by the first transmission wheel 1311 and the second transmission wheel 1312 during the process that the spindle 12 drives the tool 11 to move synchronously along the preset track.
Referring to fig. 2, in another embodiment, the transmission mechanism 131 further includes a third transmission wheel 1313, and the third transmission wheel 1313 is engaged with the first transmission wheel 1311 and the second transmission wheel 1312, so that the spindle 12 drives the tool 11 to rotate around the rotation shaft 112 through the first transmission wheel 1311, the second transmission wheel 1312 and the third transmission wheel 1313.
Optionally, the third driving wheel 1313 includes a first gear portion 1314 and a second gear portion 1315, and the first gear portion 1314 and the second gear portion 1315 are coaxially disposed and respectively engaged with the first driving wheel 1311 and the second driving wheel 1312.
With further reference to fig. 1, the adjusting mechanism 132 is configured to adjust the relative position of the tool 11 with respect to the spindle 12 about the spindle 12 during the process of the spindle 12 driving the tool 11 to move synchronously along the preset track, so that the cutting point 111 on the outer periphery of the tool 11 is maintained on the axis 121 of the spindle 12.
Specifically, the adjustment mechanism 132 is connected to the first sub-bracket 141 or the second sub-bracket 142 to adjust the relative positional relationship of the second sub-bracket 142 with respect to the main shaft 12 about the main shaft 12.
In this embodiment, taking the example that the adjusting mechanism 132 is connected to the first sub-bracket 141 as an example, in the process that the main shaft 12 drives the tool 11 to move synchronously along a curved preset track, the adjusting mechanism 132 rotates the first sub-bracket 141 relative to the main shaft 12 according to the preset track, the first sub-bracket 141 drives the second sub-bracket 142 to rotate relative to the main shaft 12 to adjust the relative position relationship of the second sub-bracket 142 relative to the main shaft 12, and further, the relative position relationship of the tool relative to the main shaft 12 is adjusted through the rotating shaft 112.
Optionally, the adjusting mechanism 132 is engaged with the first sub-bracket 141 or the second sub-bracket 142, and when engaged, the adjusting mechanism 132 can rotate to rotate the first sub-bracket 141 or the second sub-bracket 142 engaged therewith.
Optionally, the adjustment mechanism 132 is a motor.
Further, in the process of the spindle 12 driving the tool to move synchronously, when the preset track is a straight line, the adjustment makes the rotating shaft 112 move parallel to the spindle in the direction of the straight line, and when the preset track is a curve, the adjustment makes the rotating shaft 112 move synchronously with the spindle 12 in the normal direction of each tangent point of the curve of the preset track, so that the cutting point 111 on the outer periphery of the tool 11 is kept on the axis 121 of the spindle 12.
Referring to fig. 3, each point of the curve of the predetermined locus has a tangential direction with respect to the curve, i.e. a direction indicated by an arrow in fig. 3, the normal direction is a direction perpendicular to the tangential direction at each point, and the synchronous movement is that when the main shaft 12 moves to each point on the curve, the axial line of the rotating shaft 112 intersects with the normal line 101 corresponding to the normal direction at each point.
For example, at the initial position of the main shaft 12 moving along the preset track, that is, the position a1 shown in fig. 3, the adjusting mechanism 132 adjusts the first sub-holder 141 to rotate relative to the main shaft 12 to drive the second sub-holder 142 to adjust the position of the rotating shaft 112 relative to the main shaft 12, when the axis of the rotating shaft 112 intersects the normal 101 of the position a1, the adjustment is completed, and at this time, the cutting point 111 on the outer periphery of the tool 11 is on the axis 121 of the main shaft 12, further, when the main shaft 12 moves along the curve-shaped preset track to the position a2, the adjusting mechanism 132 adjusts the first sub-holder 141 by the same principle as described above, so that the axis of the rotating shaft 112 intersects the normal 101 of the position a2, that is, at the position a2, the cutting point 111 on the outer periphery of the tool 11 is the same as the initial position a1, and on the axis 121 of the main shaft 12, similarly, when the main shaft 12 moves along the curve-shaped preset track to any position, the axis of the rotating shaft 112 may intersect the normal 101 of any position point through the adjusting mechanism 132, that is, the axis of the rotating shaft 112 intersects the normal 101 of each tangent point of the curve of the preset trajectory, so that the cutting point 111 on the outer periphery of the tool 11 is always kept on the axis 121, and the cutting trajectory formed by the cutting point 111 coincides with the preset trajectory in the direction of the axis 121.
Further, the cutting assembly 10 of the present embodiment further includes a controller (not shown in the drawings) for controlling the spindle 12 to drive the tool 11 to move synchronously along a predetermined track, and adjusting the relative position relationship of the tool 11 with respect to the spindle 12 according to the predetermined track.
In an actual application scenario, according to actual cutting needs, a trajectory equation y ═ f (x) can be programmed into the controller, where (x, y) in the equation is coordinates of each point in the trajectory, the controller can control the spindle 12 to move according to the coordinates of each point, and in the moving process, the controller controls the adjusting mechanism 132 to adjust the relative position relationship of the tool 11 with respect to the spindle 12 according to the normal direction of each point in the trajectory curve, and the specific adjusting process can refer to the above description, which is not described herein again.
The present invention also provides a cutting apparatus comprising the cutting assembly 10 of the above embodiment.
Optionally, the cutting apparatus is a numerically controlled machine tool.
Referring to fig. 4, fig. 4 is a schematic flow chart of an embodiment of a cutting method based on a cutting assembly according to the present invention, the cutting assembly is the cutting assembly 10 in the above embodiment, and the method of the present embodiment specifically includes:
s101: controlling the main shaft to drive the cutter to synchronously move along a preset track and driving the cutter to rotate;
the specific implementation method of step S101 can refer to the specific description of the above embodiment of the cutting assembly 10, and is not repeated herein.
S102: the cutting point on the outer periphery of the control tool is held on the axis of the spindle.
Specifically, when the preset track is linear, the cutter is controlled to move in parallel with the spindle in the linear direction, so that the cutting point on the outer periphery of the cutter is kept on the axis of the spindle; when the preset track is curved, the tool is controlled to move synchronously with the spindle in the normal direction of each tangent point of the curve, so that the cutting points on the outer periphery of the tool are kept on the axis of the spindle.
Different from the prior art, the cutting assembly provided by the invention comprises a main shaft, a cutter, a controller and an auxiliary connecting mechanism connected with the main shaft and the cutter, wherein the auxiliary connecting mechanism comprises a transmission mechanism and an adjusting mechanism, the transmission mechanism is connected with the main shaft and the cutter, the transmission cutter rotates around a rotating shaft parallel to the axial lead of the main shaft in the process that the main shaft drives the cutter to synchronously move along a preset track, the adjusting mechanism is used for adjusting the relative position relation of the cutter relative to the main shaft around the main shaft in the process that the main shaft drives the cutter to synchronously move along the preset track, so that the cutting points on the outer periphery of the cutter are kept on the axial lead of the main shaft, the cutting track formed by the cutting points on the outer periphery of the cutter is the same as the moving track of the main shaft, the problem of cutting deformation is reduced or even eliminated, the structure is simple, the process cost and the labor cost are reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (14)
1. A cutting assembly, comprising a main shaft, a tool, a controller and an auxiliary connecting mechanism connected to the main shaft and the tool, wherein the auxiliary connecting mechanism comprises a transmission mechanism and an adjusting mechanism, the transmission mechanism connects the main shaft and the tool and transmits the tool to rotate around a rotation axis parallel to an axis of the main shaft during the main shaft drives the tool to move synchronously along a preset track, the adjusting mechanism is used for adjusting a relative position relationship of the tool with respect to the main shaft around the main shaft during the main shaft drives the tool to move synchronously along the preset track, so that a cutting point on an outer periphery of the tool is kept on the axis of the main shaft, the controller stores a preset track equation to control the main shaft to drive the tool to move synchronously along the preset track according to the track equation, controlling the adjusting mechanism to adjust the relative position relation of the cutter relative to the main shaft according to the track equation;
the cutting assembly further comprises a support, the support comprises a first sub-support and a second sub-support, the first sub-support is rotatably connected with the main shaft, the second sub-support is rotatably connected with the rotating shaft, and the first sub-support is fixedly connected with the second sub-support, so that the main shaft can move synchronously along the preset track through the first sub-support and the second sub-support to drive the cutter.
2. The cutting assembly of claim 1, wherein the transmission mechanism comprises:
the first driving wheel is coaxially arranged with the main shaft;
the second transmission wheel is coaxially arranged with the cutter, and the second transmission wheel is in meshing transmission with the first transmission wheel, so that the cutter is driven to rotate around the rotating shaft through the first transmission wheel and the second transmission wheel in the process that the spindle drives the cutter to move synchronously along the preset track.
3. The cutting assembly of claim 1, wherein the adjustment mechanism is coupled to the first sub-mount or the second sub-mount to adjust the relative positional relationship of the second sub-mount with respect to the spindle about the spindle axis.
4. The cutting assembly of claim 3, wherein the adjustment mechanism is in meshing transmission with the first or second sub-holder.
5. The cutting assembly of claim 1, wherein the predetermined trajectory is linear, and the rotational axis moves parallel to the spindle in the direction of the line.
6. The cutting assembly of claim 1, wherein the predetermined path is curvilinear and the rotational axis moves in synchronism with the spindle normal to each tangent point of the curve.
7. The cutting assembly of claim 2, wherein the transmission mechanism further comprises a third transmission wheel, the third transmission wheel being engaged with the first transmission wheel and the second transmission wheel.
8. The cutting assembly of claim 7, wherein the third drive wheel comprises a first gear portion and a second gear portion, the first gear portion and the second gear portion being coaxially disposed and meshing with the first drive wheel and the second drive wheel, respectively.
9. The cutting assembly of claim 1, wherein a cutting locus of a cutting point on an outer periphery of the tool coincides with the preset locus in the direction of the shaft axis.
10. A cutting apparatus, characterized in that it comprises a cutting assembly according to any one of claims 1 to 9.
11. The cutting apparatus of claim 10, wherein the cutting apparatus is a numerically controlled machine tool.
12. A method of cutting based on the cutting assembly of any one of claims 1-9, the method comprising:
controlling the main shaft to drive the cutter to synchronously move along a preset track and driving the cutter to rotate;
controlling a cutting point on an outer periphery of the tool to be maintained on an axis of the spindle.
13. The method of claim 12, wherein the predetermined trajectory is linear, and the step of controlling the cutting point on the outer periphery of the tool to be maintained on the axis of the spindle comprises:
controlling the tool to move in parallel with the spindle in the direction of the straight line such that a cutting point on the outer periphery of the tool is maintained on the axis of the spindle.
14. The method of claim 12, wherein the predetermined path is curved, and the step of controlling the cutting point on the outer periphery of the tool to remain on the axis of the spindle comprises:
controlling the cutter to move synchronously with the spindle in a normal direction of each tangent point of the curve, so that a cutting point on the outer periphery of the cutter is kept on the axis of the spindle.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/118118 WO2019119451A1 (en) | 2017-12-22 | 2017-12-22 | Cutting assembly, cutting device and cutting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109496174A CN109496174A (en) | 2019-03-19 |
| CN109496174B true CN109496174B (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780036091.6A Active CN109496174B (en) | 2017-12-22 | 2017-12-22 | Cutting assembly, cutting equipment and cutting method |
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| Country | Link |
|---|---|
| CN (1) | CN109496174B (en) |
| WO (1) | WO2019119451A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2646284C2 (en) * | 1976-10-14 | 1983-12-08 | Dr. Otto C. Strecker Kg, 6102 Pfungstadt | Rotary sheeter |
| JP3753288B2 (en) * | 1998-09-17 | 2006-03-08 | 石川島播磨重工業株式会社 | Drum type running machine |
| US6681672B2 (en) * | 2000-02-07 | 2004-01-27 | Warren L. Myrfield | Optimized band saw feed speed system |
| CN102892538A (en) * | 2010-01-29 | 2013-01-23 | 柳下福藏 | Boring device |
| DE102012213013A1 (en) * | 2012-07-25 | 2014-01-30 | Robert Bosch Gmbh | Semi-autonomous jigsaw for use as machine tool, has saw blade adjustable around its hub axis in alignment on working line, where sensory detection device is provided for working line within detection area placed upstream to saw blade |
| CN202701484U (en) * | 2012-08-15 | 2013-01-30 | 南京大地水刀股份有限公司 | Gesture control mechanism of water cutting head taking entry point as centre |
| CN204381556U (en) * | 2014-12-27 | 2015-06-10 | 长泰县海力机械制造有限公司 | A kind of ball valve core machining tool |
| CN204913437U (en) * | 2015-06-26 | 2015-12-30 | 锋和机械工业股份有限公司 | Work or material rest auxiliary positioning device |
| CN106112693B (en) * | 2016-07-01 | 2018-02-16 | 上海拓璞数控科技股份有限公司 | A kind of five-axle number control machine tool translation shaft and rotary shaft synchronous error detection method |
| CN107186500B (en) * | 2017-07-14 | 2023-04-18 | 钦州学院 | Auxiliary positioning device for numerical control lathe spindle |
| CN207695775U (en) * | 2017-12-22 | 2018-08-07 | 深圳配天智能技术研究院有限公司 | A kind of cutter assembly and cutting apparatus |
-
2017
- 2017-12-22 CN CN201780036091.6A patent/CN109496174B/en active Active
- 2017-12-22 WO PCT/CN2017/118118 patent/WO2019119451A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019119451A1 (en) | 2019-06-27 |
| CN109496174A (en) | 2019-03-19 |
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