CN111745227A - Numerical control multi-cutter movable efficient gear milling machine - Google Patents
Numerical control multi-cutter movable efficient gear milling machine Download PDFInfo
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- CN111745227A CN111745227A CN202010685779.0A CN202010685779A CN111745227A CN 111745227 A CN111745227 A CN 111745227A CN 202010685779 A CN202010685779 A CN 202010685779A CN 111745227 A CN111745227 A CN 111745227A
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- Prior art keywords
- cutter
- numerical control
- workbench
- feeding assembly
- milling machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
- B23F5/20—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
- B23F23/1206—Tool mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
- B23F5/20—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling
- B23F5/205—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling with plural tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to the technical field of gear machining, in particular to a numerical control multi-cutter movable type efficient gear milling machine which comprises a workbench and cutter feeding assemblies, wherein the workbench is a circular workbench, the number of the cutter feeding assemblies is 2-32, the cutter feeding assemblies are uniformly distributed around the periphery of the workbench, and the rotating speed of the workbench and the rotating speed and the feeding amount of a main shaft of each cutter feeding assembly are respectively controlled by a numerical control servo system of a machine tool. Compared with the prior art, the invention has the following beneficial effects: 1) by adopting the method of combining the circular workbench and the multiple groups of cutter assemblies, the workpiece can finish multiple cutting after rotating for one circle, thereby greatly improving the production efficiency and obviously reducing the processing cost; 2) the method is suitable for gear tooth profile machining with the diameter of 20 meters at most, and the diameter of the gear is not limited in principle. 3) The efficiency is remarkable, the processing speed is 2-32 times of that of the existing single-cutter gear milling machine, and the number of the cutter feeding assemblies is not limited as long as the size of the workbench is enough in principle.
Description
Technical Field
The invention relates to the technical field of gear machining, in particular to a numerical control multi-cutter movable type efficient gear milling machine.
Background
Gear machining is a process of obtaining a specific structure and precision of a gear by using a mechanical method. The gear is a core transmission part in a mechanical transmission mechanism, the quality of the machining quality of the gear directly affects the vibration noise, reliability and the like of a mechanical assembly and even a complete machine, and sometimes becomes a key factor for restricting the improvement of the product level.
Gear cutting machines can be divided into two types, namely cylindrical gear cutting machines and bevel gear cutting machines, and have different precision levels and application ranges. The cylindrical gear processing machine tool can be divided into hobbing, gear shaping, gear shaving, gear honing, gear grinding, gear extrusion, chamfering machine tools and the like according to the process mode; the bevel gear processing machine tool can be divided into a milling machine tool, a gear planing machine tool, a gear broaching machine tool, a gear grinding machine tool, a gear lapping machine tool, a chamfering machine tool, a rolling inspection machine tool, a quenching machine tool and the like according to the process mode. The Chinese gear machine tool has basically formed a relatively complete series, and a spiral bevel gear six-axis numerical control grinding machine with international technical content has been developed, but the overall manufacturing level of the gear machine tool has larger gap in the aspects of precision, service life, stability, numerical control technical application and the like compared with Europe and America.
The Chinese patent with application number of 200910217972.5 discloses a spiral bevel gear cutting machine tool and a gear cutting method. The gear cutting machine tool comprises a cutting tool system, a workpiece system, a machine body and a numerical control system. The cutting tool system comprises an XZ workbench, an X-axis lead screw, a Z-axis lead screw, a short shaft, a tool base rotary drum, a tool base, a No. 1 milling cutter, a milling cutter shaft, a No. 2 milling cutter, a gear shaft and a wedge-shaped cushion block. The rotary center line of the cutter seat rotary drum is collinear with the rotary center line of the short shaft, the right end face of the cutter seat rotary drum is fixedly connected with an annular flange plate at the left end of the cutter seat through a wedge-shaped cushion block, a milling cutter shaft is installed at the right end of the cutter seat, the rotary center line of the milling cutter shaft is intersected with the rotary center line of the short shaft, and a No. 1 milling cutter, a No. 2 milling cutter or a grinding wheel is installed at two ends. The left end face of the cutter seat is provided with a driving motor, the driving motor is meshed with a bevel gear on the milling cutter shaft through a gear shaft, and the rotating center line of an output shaft of the driving motor is vertically intersected with the rotating center line of the milling cutter shaft.
The Chinese patent with application number 201811578084.1 discloses a four-axis side edge tooth milling method, which is implemented by calling a processing program on a horizontal processing center and is cut by a far-end side edge of a cylindrical milling cutter clamped on a main shaft; the spindle box of the machine tool performs Y-direction lifting motion on the upright post, the spindle performs Z-direction front-back horizontal telescopic motion relative to the spindle box, and the upright post performs X-direction horizontal left-right motion; the rotary worktable rotating around the shaft B is used for clamping the gear blank, the axis of the shaft B is vertically arranged in parallel to the shaft Y, and the central axis of the gear blank is superposed with the shaft B; in the machining process, the rotary worktable rotates to realize gear indexing, angle compensation of linkage of the Y axis and the B axis and angle compensation of feeding of the main shaft along the tooth shape direction.
All gear hobbing machines, gear milling machines and gear planing machines in the world are produced by single cutters, the required corresponding space of a machined workpiece is only 500 mm-800 mm, other space circumferential rate spaces are wasted, and the larger the diameter of the machined gear is, the larger the waste is.
Disclosure of Invention
The invention aims to provide a numerical control multi-cutter mobile efficient gear milling machine, which overcomes the defects of the prior art, optimizes the structure, adopts a method of combining a circular workbench and a plurality of groups of cutter assemblies, ensures that the cutter assemblies are uniformly distributed along the periphery of the workbench, realizes numerical control operation, can finish multiple cutting after a workpiece rotates for one circle, greatly improves the production efficiency and reduces the processing cost.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a portable high-efficient gear milling machine of numerical control multitool, includes that workstation and cutter feed the assembly, the workstation is circular workstation, and the cutter feeds assembly quantity and is 2~32, the cutter feeds the assembly and evenly arranges around the workstation periphery, the rotational speed of workstation, the main shaft rotational speed and the feed volume that each cutter fed the assembly are controlled by lathe numerical control servo respectively.
Further, the cutter feeding assembly comprises a horizontal lathe bed, a slide rail seat, a headstock, a horizontal square ram, a boring and milling head, a transverse moving feeding assembly, a lifting feeding assembly and a horizontal feeding assembly, wherein the slide rail seat is arranged on the horizontal lathe bed, the horizontal feeding assembly is arranged between the slide rail seat and the horizontal lathe bed, and the slide rail seat can horizontally move relative to the horizontal lathe bed by operating the horizontal feeding assembly; a headstock is arranged on the slide rail seat, a transverse moving feeding assembly is arranged between the headstock and the slide rail seat, and the headstock can move transversely relative to the slide rail seat by operating the transverse moving feeding assembly; a horizontal square ram is arranged on the headstock, the front end of the horizontal square ram is connected with a boring and milling head, a feeding motor and a spindle motor on the horizontal ram are operated, and the boring and milling head performs rotation and feeding operations; a lifting and feeding assembly is arranged between the headstock and the horizontal square ram, and the horizontal square ram is lifted along the headstock when the lifting and feeding assembly is operated.
Further, the diameter of the workbench is 6-20 meters.
Furthermore, the lifting and feeding assembly is a ball screw driven by a numerical control servo.
Furthermore, the workbench comprises a pedestal and a workbench body, the workbench body is connected with the pedestal through a main gearbox assembly, and the workbench body coaxially rotates relative to the pedestal under the driving of the main gearbox.
Furthermore, the ratio of the overall height to the diameter of the workbench is 1: 3-5.
Further, the boring and milling head is an electric spindle milling head.
Further, the number of tool feeding assemblies is preferably 4 or 8.
The principle of the technical scheme of the invention is that the diameter of the workbench is increased, the standard boring and milling head is favorable for clamping, and all cutter feeding assemblies are centripetally distributed in 360 degrees of the circumference, so that the aim of multi-cutter processing is achieved, and the wolf strategy tactics is realized. The transverse moving feed is prepared for designing the number of teeth of a processing movable gear ring, the number of the teeth of the gear is all the same, once the teeth of the gear are not divided by the number of the teeth of the cutter, the gear cannot be processed in decimal, and after the transverse moving fine adjustment, the maximum modulus is increased from 60 to 100. Under the control of a numerical control servo system of the device, 32 boring and milling heads synchronously feed centripetally, milling is carried out simultaneously, and the efficiency is greatly improved.
Compared with the prior art, the invention has the following beneficial effects: 1) the multi-cutter milling machine has the advantages that the structure is optimized, the cutter feeding assemblies are designed in pairs in centripetal mode, the multi-cutter milling machine can be used for boring and milling heads only in space, multiple cutters can be dried, the circular workbench is combined with the multiple cutter assemblies, the cutter assemblies are uniformly arranged along the periphery of the workbench, numerical control operation is achieved, multiple cutting can be completed after the workpieces rotate for one circle, production efficiency is greatly improved, the advantages of processing cost and people are greatly reduced, a factory building is saved, the utilization rate of the factory building is improved, multi-cutter processing is wolf wars, the diameter of a gear to be added is larger, efficiency is higher, the efficiency can be improved by 5-20 times, and the numerical control milling machine is a. 2) The method is suitable for gear tooth profile machining with the diameter of 20 meters at most, and the diameter of the gear is not limited in principle. 3) The efficiency is remarkable, the processing speed is 2-32 times of that of the existing single-cutter gear milling machine, and the number of the cutter feeding assemblies is not limited as long as the size is enough in principle.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an example of distribution of tool feeding assemblies in an embodiment of the present invention, where the number of tool feeding assemblies is 8.
Fig. 3 is a schematic structural diagram of a second distribution example of the tool feeding assemblies in the embodiment of the present invention, where the number of the tool feeding assemblies is 4.
In the figure: 1. a work table; 11. a pedestal and a 12 bench body; 2. a tool feed assembly; 3. a bed body; 4. a headstock; 5. a horizontal square ram; 6. boring and milling heads; 7. a horizontal feed assembly; 8. a lifting feed assembly; 9. a main gear box; 10. a slide rail seat; 20. and a transverse moving and feeding assembly.
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.
In the following embodiments, the structures of the worktable 1, the pedestal 11, the body 12, the tool feeding assembly 2, the bed rest 3, the headstock 4, the horizontal square ram 5, the boring and milling head 6, the horizontal feeding assembly 7, the lifting and feeding assembly 8, the main gearbox 9, the slide rail seat 10, the traverse feeding assembly 20, and the numerical control servo system are all commercially available products.
Referring to fig. 1-3, the structural schematic diagram of an embodiment of the numerical control multi-cutter mobile high-efficiency gear milling machine of the invention includes a workbench 1 and cutter feeding assemblies 2, the workbench 1 is a circular workbench 1, the number of the cutter feeding assemblies 2 is 2-32, the cutter feeding assemblies 2 are uniformly arranged around the periphery of the workbench 1, and the rotation speed of the workbench 1, the spindle rotation speed and the feeding amount of each cutter feeding assembly 2 are respectively controlled by a numerical control servo system of the machine tool.
Further, the cutter feeding assembly comprises a horizontal lathe bed 3, a slide rail seat 10, a headstock 4, a horizontal square ram 5, a boring and milling head 6, a transverse moving feeding assembly 20, a lifting feeding assembly 8 and a horizontal feeding assembly 7, the slide rail seat 10 is arranged on the bed body 3, the horizontal feeding assembly 7 is arranged between the slide rail seat 10 and the bed body 3, the horizontal feeding assembly 7 is operated, and the slide rail seat 10 can horizontally move relative to the horizontal lathe bed 3; a headstock 4 is arranged on the slide rail seat 10, a transverse moving feeding assembly 20 is arranged between the headstock 4 and the slide rail seat 10, and the headstock can move transversely relative to the slide rail seat by operating the transverse moving feeding assembly 20; a horizontal square ram 5 is arranged on the headstock 4, the front end of the horizontal square ram 5 is connected with a boring and milling head 6, a feeding motor and a spindle motor on the horizontal square ram 5 are operated, and the boring and milling head 6 performs rotation and feeding operations; a lifting and feeding assembly 8 is arranged between the headstock 4 and the horizontal square ram 5, the lifting and feeding assembly 8 is operated, and the horizontal square ram 5 is lifted and lowered along the headstock 4.
In the embodiment, the lifting and feeding assembly 8 is a ball screw structure driven by a servo motor, and has high precision and small moving resistance. The lifting feeding assembly 8 can be used for controlling the boring and milling head 6 to move and feed in the vertical direction, the feeding amount is adjusted by a numerical control servo system, and the precision is high. The horizontal feed assembly 7 and the traverse feed assembly 20 may be of a manual screw structure to reduce costs.
The diameter of the workbench 1 in the embodiment of the invention is suitable for the range of 6-20 meters.
The workbench 1 comprises a pedestal 11 and a workbench body 12, the workbench body 12 is connected with the pedestal 11 through a main gearbox 9 assembly, the workbench body 12 is driven by the main gearbox 9 to coaxially rotate relative to the pedestal 11, and the rotating speed of the workbench is controllable under the control of a numerical control servo system. The ratio of the overall height to the diameter of the workbench 1 is 1: 3-5, and the deepened workbench is beneficial to improving the stability of the workbench in rotation.
The boring and milling head 6 is an electric spindle milling head and has the advantages of large tool consumption and stable operation.
The optimal value of the distribution quantity of the cutter feeding assembly 2 is 4 groups or 8 groups, the workpiece can finish multiple cutting after rotating for one circle, and the higher the distribution quantity is, the higher the processing precision and the processing efficiency can be realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a portable high-efficient gear milling machine of numerical control multitool, includes that workstation and cutter feed the assembly, its characterized in that, the workstation is circular workstation, and cutter feed assembly quantity is 2~32, the cutter feeds the assembly and evenly arranges around the workstation periphery, the rotational speed of workstation, the main shaft rotational speed and the feed volume that each cutter fed the assembly are controlled by lathe numerical control servo respectively.
2. The numerical control multi-cutter mobile high-efficiency gear milling machine as claimed in claim 1, wherein the cutter feeding assembly comprises a horizontal lathe bed, a slide rail seat, a headstock, a horizontal square ram, a boring and milling head, a transverse moving feeding assembly, a lifting feeding assembly and a horizontal feeding assembly,
a slide rail seat is arranged on the bed body, a horizontal feeding assembly is arranged between the slide rail seat and the bed body, and the slide rail seat can horizontally move relative to the bed body by operating the horizontal feeding assembly;
a headstock is arranged on the slide rail seat, a transverse moving feeding assembly is arranged between the headstock and the slide rail seat, and the headstock can move transversely relative to the slide rail seat by operating the transverse moving feeding assembly;
a horizontal square ram is arranged on the headstock, the front end of the horizontal square ram is connected with a boring and milling head, a feeding motor and a spindle motor on the horizontal ram are operated, and the boring and milling head performs rotation and feeding operations;
a lifting and feeding assembly is arranged between the headstock and the horizontal square ram, and the horizontal square ram is lifted along the headstock when the lifting and feeding assembly is operated.
3. The numerical control multi-cutter mobile efficient gear milling machine according to claim 1, wherein the diameter of the workbench is 6-20 m.
4. The numerical control multi-cutter mobile high-efficiency gear milling machine according to claim 1, wherein the lifting and feeding assembly is a numerical control servo-driven ball screw.
5. The numerical control multi-cutter mobile high-efficiency gear milling machine according to claim 1, wherein the worktable comprises a pedestal and a platform body, the platform body is connected with the pedestal through a main gearbox assembly, and the platform body is driven by the main gearbox to coaxially rotate relative to the pedestal.
6. The numerical control multi-cutter mobile efficient gear milling machine according to claim 1, wherein the ratio of the overall height to the diameter of the workbench is 1: 3-5.
7. The numerical control multi-cutter mobile high-efficiency gear milling machine according to claim 2, wherein the boring and milling head is an electric spindle milling head.
8. A numerical control multi-blade mobile high efficiency gear milling machine according to claim 1 wherein the number of tool feed assemblies is preferably 4 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685779.0A CN111745227A (en) | 2020-07-16 | 2020-07-16 | Numerical control multi-cutter movable efficient gear milling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685779.0A CN111745227A (en) | 2020-07-16 | 2020-07-16 | Numerical control multi-cutter movable efficient gear milling machine |
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| CN111745227A true CN111745227A (en) | 2020-10-09 |
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| CN202010685779.0A Pending CN111745227A (en) | 2020-07-16 | 2020-07-16 | Numerical control multi-cutter movable efficient gear milling machine |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2330167A (en) * | 1939-11-13 | 1943-09-21 | Gould & Eberhardt | Thermally insulated hobbing machine |
| CN200995308Y (en) * | 2007-01-24 | 2007-12-26 | 南京工业大学 | Numerical control milling and gear hobbing combined machine tool |
| CN101219490A (en) * | 2008-01-28 | 2008-07-16 | 文鉴恒 | Large-mode number high-efficiency high-accuracy multi-station adjustable numerical control gear milling machine and numerical control method |
| CN202607004U (en) * | 2012-05-10 | 2012-12-19 | 沈阳市大鑫数控机械有限责任公司 | Flywheel numerical control gear milling machine tool |
| CN104209598A (en) * | 2014-08-13 | 2014-12-17 | 福清市庚安机动车配件有限公司 | Double-station numerical control curved-tooth gear milling machine |
| CN204524435U (en) * | 2014-12-25 | 2015-08-05 | 重庆机床(集团)有限责任公司 | Gear-hobbing machine with damping mechanism and workbench thereof |
| CN106312564A (en) * | 2016-11-16 | 2017-01-11 | 北方工业大学 | Turning, milling and drilling integrated machining equipment and turning, milling and drilling integrated machining method |
| CN107598299A (en) * | 2017-09-07 | 2018-01-19 | 福建德纳齿轮有限公司 | A kind of tooth milling machine |
| CN110303204A (en) * | 2019-07-10 | 2019-10-08 | 湖南大学 | A kind of method and device of multiple gear blank simultaneous processings |
-
2020
- 2020-07-16 CN CN202010685779.0A patent/CN111745227A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2330167A (en) * | 1939-11-13 | 1943-09-21 | Gould & Eberhardt | Thermally insulated hobbing machine |
| CN200995308Y (en) * | 2007-01-24 | 2007-12-26 | 南京工业大学 | Numerical control milling and gear hobbing combined machine tool |
| CN101219490A (en) * | 2008-01-28 | 2008-07-16 | 文鉴恒 | Large-mode number high-efficiency high-accuracy multi-station adjustable numerical control gear milling machine and numerical control method |
| CN202607004U (en) * | 2012-05-10 | 2012-12-19 | 沈阳市大鑫数控机械有限责任公司 | Flywheel numerical control gear milling machine tool |
| CN104209598A (en) * | 2014-08-13 | 2014-12-17 | 福清市庚安机动车配件有限公司 | Double-station numerical control curved-tooth gear milling machine |
| CN204524435U (en) * | 2014-12-25 | 2015-08-05 | 重庆机床(集团)有限责任公司 | Gear-hobbing machine with damping mechanism and workbench thereof |
| CN106312564A (en) * | 2016-11-16 | 2017-01-11 | 北方工业大学 | Turning, milling and drilling integrated machining equipment and turning, milling and drilling integrated machining method |
| CN107598299A (en) * | 2017-09-07 | 2018-01-19 | 福建德纳齿轮有限公司 | A kind of tooth milling machine |
| CN110303204A (en) * | 2019-07-10 | 2019-10-08 | 湖南大学 | A kind of method and device of multiple gear blank simultaneous processings |
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| Title |
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| 第一机械工业部北京机床研究所: "《机床行业综述》", 30 November 1979, 第一机械工业部技术情报所 * |
| 韩振宇: "《机床数控技术》", 31 May 2018, 哈尔滨工业大学出版社 * |
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Application publication date: 20201009 |