CN120347311A - Electric discharge grinding combined machining manufacturing equipment and method for milling cutter - Google Patents
Electric discharge grinding combined machining manufacturing equipment and method for milling cutterInfo
- Publication number
- CN120347311A CN120347311A CN202510687963.1A CN202510687963A CN120347311A CN 120347311 A CN120347311 A CN 120347311A CN 202510687963 A CN202510687963 A CN 202510687963A CN 120347311 A CN120347311 A CN 120347311A
- Authority
- CN
- China
- Prior art keywords
- grinding
- milling cutter
- machining
- machine tool
- grinding wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H5/00—Combined machining
- B23H5/04—Electrical discharge machining combined with mechanical working
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
- B23H11/003—Mounting of workpieces, e.g. working-tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/02—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
本发明公开了一种铣刀的放电磨削组合加工制造装备及方法，包括高精度数控机床、电火花脉冲电源模块以及机械磨削驱动模块；高精度数控机床包括机床主体、工作台及机床主轴，通过工作台对铣刀坯料进行夹持固定，机床主轴下端配备双向磨头，两侧磨头分别安装有紫铜砂轮和金刚石砂轮；电火花脉冲电源模块与双向磨头上的紫铜砂轮电连接；机械磨削驱动模块与双向磨头上的砂轮连接；该加工制造方法包括工件装夹定位、放电磨削粗加工、砂轮切换与精加工定位以及机械精加工。本发明通过有效结合放电加工和磨削加工的优势，提高铣刀的加工精度和生产效率，满足现代制造业对铣刀高质量、高精度的需求。
The present invention discloses a combined discharge grinding processing and manufacturing equipment and method for a milling cutter, including a high-precision CNC machine tool, an electric spark pulse power supply module and a mechanical grinding drive module; the high-precision CNC machine tool includes a machine tool body, a workbench and a machine tool spindle, the milling cutter blank is clamped and fixed by the workbench, the lower end of the machine tool spindle is equipped with a bidirectional grinding head, and the grinding heads on both sides are respectively installed with a copper grinding wheel and a diamond grinding wheel; the electric spark pulse power supply module is electrically connected to the copper grinding wheel on the bidirectional grinding head; the mechanical grinding drive module is connected to the grinding wheel on the bidirectional grinding head; the processing and manufacturing method includes workpiece clamping and positioning, discharge grinding rough processing, grinding wheel switching and finishing positioning and mechanical finishing. The present invention improves the processing accuracy and production efficiency of the milling cutter by effectively combining the advantages of discharge processing and grinding processing, and meets the high quality and high precision requirements of the modern manufacturing industry for the milling cutter.
Description
Technical Field
The invention relates to the technical field of cutter manufacturing, in particular to electric discharge grinding combined machining manufacturing equipment and method for a milling cutter.
Background
At the moment of the vigorous development of the modern manufacturing industry, milling cutters are used as cutting tools which are extremely critical in machining, and the manufacturing quality and the production efficiency directly affect the development level of the whole machining industry. Along with the continuous progress of the manufacturing industry to the high-end and precise directions, the requirements on precision, wear resistance, cutting performance and the like of the milling cutter are increasingly raised.
Currently, milling cutters are manufactured in a number of ways, with electric discharge machining and grinding being the more common processes. Electric discharge machining is capable of machining materials of complex shapes and high hardness, and can be used for preliminary forming and rough machining in milling cutter manufacturing. The grinding process can obtain higher dimensional accuracy and good surface quality, and is commonly used for finishing milling cutters. However, existing milling cutter manufacturing techniques suffer from significant drawbacks.
On the one hand, when the discharge machining is used alone, a large amount of materials can be removed rapidly, but the machining precision is difficult to ensure, and the surface quality of the milling cutter is also influenced, so that the cutting performance and the service life of the milling cutter are influenced. For example, in the case of machining a high-precision die milling cutter, the surface roughness and dimensional accuracy of the milling cutter after electric discharge machining cannot meet the requirements of subsequent die manufacturing, a large number of subsequent treatments are required, and the production cost and the machining period are increased.
On the other hand, if only grinding is used, the machining efficiency for the milling cutter for high hardness materials is extremely low, and the abrasion of the grinding wheel is serious. For example, when manufacturing a special milling cutter used in the aerospace field, the conventional grinding processing is difficult to meet the dual requirements of production efficiency and processing precision.
Therefore, the development of the electric discharge grinding combined machining manufacturing equipment and method for the milling cutter has important significance in promoting the development of the machining industry.
Disclosure of Invention
In order to solve the defects in the background art, the invention aims to provide the electric discharge grinding combined machining manufacturing equipment and method for the milling cutter, which combine the advantages of electric discharge and grinding machining and can improve the machining precision and efficiency of the milling cutter.
In order to achieve the aim, the invention provides the technical scheme that the electric discharge grinding combined machining manufacturing equipment of the milling cutter comprises a high-precision numerical control machine tool, an electric spark pulse power supply module and a mechanical grinding driving module;
The high-precision numerical control machine tool comprises a machine tool main body, a workbench and a machine tool spindle, wherein the workbench is positioned at the upper end of one side of the machine tool main body, a milling cutter blank is clamped and fixed through the workbench, the workbench has a X, Y, Z three-axis linkage function, the machine tool spindle is positioned at the upper end of the other side of the machine tool main body, a bidirectional grinding head is arranged at the lower end of the machine tool main body, a red copper grinding wheel and a diamond grinding wheel are respectively arranged on the grinding heads on two sides, the grinding wheels on two sides are arranged on the same spindle, grinding wheel switching is realized through grinding head rotation, namely C-axis rotation, and the repeated positioning precision is smaller than 0.005mm;
the electric spark pulse power supply module is electrically connected with the red copper grinding wheel on the bidirectional grinding head, so as to output high-energy pulses required by rough machining, wherein voltage and pulse width parameters are flexibly adjusted and set according to machining requirements, and the electric discharge grinding rough machining requirements of milling cutter blanks made of different materials are met;
The mechanical grinding driving module is connected with the grinding wheel on the two-way grinding head, constant rotation speed control and micro-feeding functions are provided, the rotation speed control precision is within +/-1 r/min, the feeding precision reaches +/-0.01 mm, and the precision and stability of mechanical grinding finish machining are ensured.
Preferably, the high-precision numerical control machine tool is provided with an absolute grating ruler and a high-precision servo control system, real-time position information of each shaft of the machine tool is accurately recorded through the absolute grating ruler, the resolution reaches 0.001mm, the accuracy and the uniqueness of position feedback are ensured, and the motion trail and the position of each shaft and the grinding head of the machine tool are accurately controlled in real time according to the data fed back by the grating ruler through the high-precision servo control system, so that the machining precision is ensured.
Preferably, the bidirectional grinding head of the high-precision numerical control machine tool adopts a high-precision bearing and a transmission mechanism, so that the rotation stability and the positioning precision of the grinding head are ensured, the rotation angle precision of the grinding head is controlled within +/-0.01 DEG, and the grinding wheel is ensured to accurately reach a processing position after being switched.
The invention also provides a machining and manufacturing method of the electric discharge grinding combined machining and manufacturing equipment of the milling cutter, which comprises the following steps of:
The method comprises the steps of S1, clamping and positioning a workpiece, namely firmly fixing a milling cutter blank on a workbench of a processing machine tool to ensure that positioning accuracy meets processing requirements, respectively mounting a red copper grinding wheel and a diamond grinding wheel on a bidirectional grinding head on a main shaft of the machine tool, and adjusting the positions of the bidirectional grinding head to enable the red copper grinding wheel and the milling cutter blank to be in an initial processing position;
Step S2, electric discharge grinding rough machining, namely starting an electric spark pulse power supply, and adopting a red copper grinding wheel to perform electric discharge grinding rough machining on the milling cutter blank;
Step S3, grinding wheel switching and finishing positioning, namely rotating a bidirectional grinding head after finishing electric discharge grinding rough machining to enable the diamond grinding wheel to be switched to a working position, adjusting the position of the grinding head, and enabling the diamond grinding wheel and the milling cutter blank to reach a finishing starting point;
and S4, mechanical finishing, namely mechanically grinding and finishing the milling cutter blank by adopting a diamond grinding wheel, and forming at one time.
Preferably, during clamping and positioning in the step S1, a high-precision clamping tool is used for ensuring accurate and stable positioning of milling cutter blanks, and the positioning precision range is controlled within +/-0.01 mm.
Preferably, in the step S2, the parameters of the electric discharge grinding rough machining are dynamically adjusted according to the material and hardness of the milling cutter blank, the rough machining parameters are set to improve the machining efficiency, including higher machining voltage, higher current, longer pulse width and larger feeding depth, the machining voltage and current are properly improved for the blank with higher hardness, the pulse width is prolonged, and the parameters are correspondingly reduced for the blank with lower hardness, so as to optimize the machining efficiency and the machining quality.
Preferably, in the step S4, according to the design requirement of the milling cutter and the surface condition after rough machining, finishing parameters are set to ensure the dimensional accuracy and the surface quality, wherein the finishing parameters mainly comprise controlling the linear speed, the feeding speed and the grinding depth of the diamond grinding wheel, reducing the feeding speed and the grinding depth for the parts with high accuracy requirements, improving the linear speed, and adjusting the parameters for the parts with general accuracy requirements to improve the machining efficiency.
Compared with the prior art, the milling cutter machining and grinding combined manufacturing method and device have the advantages that the advantages of electric discharge machining and grinding machining can be effectively combined, the machining precision and the production efficiency of the milling cutter are improved, and the requirements of modern manufacturing industry on high quality and high precision of the milling cutter are met.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic view of a combined electric discharge grinding manufacturing apparatus for milling cutters of the present invention;
FIG. 2 is a flow chart of a method of manufacturing a milling cutter by electric discharge grinding combination process according to the present invention;
Fig. 3 is a schematic diagram of a straight flute of a blank of a milling cutter for primarily processing a red copper grinding wheel and a diamond grinding wheel, wherein a is a schematic diagram of primary tool setting of the red copper grinding wheel and the diamond grinding wheel, b is a schematic diagram of electro-discharge rough machining of the red copper grinding wheel, c is a schematic diagram of a converting grinding wheel, and d is a schematic diagram after finishing of the diamond grinding wheel;
reference numeral 1 in the figure, working table; 2, milling cutter blank, 3, red copper grinding wheel, 4, machine tool main shaft, 5, diamond grinding wheel, 6, electric spark pulse power supply and 7, machine tool main body.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
As shown in fig. 1, the electric discharge grinding combined machining manufacturing equipment of the milling cutter comprises a high-precision numerical control machine tool, an electric spark pulse power supply 6 module and a mechanical grinding driving module.
The high-precision numerical control machine tool comprises a machine tool main body 7, a workbench 1 and a machine tool spindle 4, wherein the workbench 1 is positioned at the upper end of one side of the machine tool main body 7, a milling cutter blank 2 is clamped and fixed through the workbench 1, the workbench 1 has a X, Y, Z three-axis linkage function, the machine tool spindle 4 is positioned at the upper end of the other side of the machine tool main body 7, the lower end of the machine tool spindle 4 is provided with a bidirectional grinding head, two-side grinding heads are respectively provided with a red copper grinding wheel 3 and a diamond grinding wheel 5, the two-side grinding wheels are respectively arranged on the same spindle, grinding wheel switching is realized through grinding head rotation, namely C-axis rotation, the repeated positioning precision is smaller than 0.005mm, a machine tool control system accurately controls the motion track and the position of the grinding head to ensure the machining precision, wherein the high-precision numerical control machine tool is provided with an absolute grating ruler and a high-precision servo control system, the resolution reaches 0.001mm through the real-time position information of each axis of the absolute grating ruler to ensure the accuracy and the uniqueness of position feedback, and the high-precision servo control system accurately controls the motion of each axis according to the data fed back by the high-precision grating ruler, wherein the high-precision grating ruler and the high-precision grinding head is accurately controlled by adopting a high-precision bearing and a high-precision rotating angle and a grinding head to rotate within a transmission angle of a machine tool to ensure accuracy of 0.01 degree.
The electric spark pulse power supply 6 module is electrically connected with the red copper grinding wheel 3 on the two-way grinding head, and then outputs high-energy pulses required by rough machining, wherein voltage and pulse width parameters are flexibly adjusted according to machining requirements, and the electric discharge grinding rough machining requirements of milling cutter blanks 2 made of different materials are met.
The mechanical grinding driving module is connected with the grinding wheel on the two-way grinding head, constant rotation speed control and micro-feeding functions are provided, the rotation speed control precision is within +/-1 r/min, the feeding precision reaches +/-0.01 mm, and the precision and stability of mechanical grinding finish machining are ensured.
As shown in fig. 2, the invention further provides a machining and manufacturing method of the electric discharge grinding combined machining and manufacturing equipment of the milling cutter, which comprises the following steps:
The method comprises the steps of S1, clamping and positioning a workpiece, namely firmly fixing a milling cutter blank 2 on a workbench 1 of a processing machine tool to ensure that positioning accuracy meets processing requirements, respectively mounting a red copper grinding wheel 3 and a diamond grinding wheel 5 on a bidirectional grinding head on a machine tool main shaft 4, adjusting the positions of the bidirectional grinding heads to enable the red copper grinding wheel 3 and the milling cutter blank 2 to be in initial processing positions, and using a high-accuracy clamping tool to ensure that the milling cutter blank 2 is accurately and firmly positioned when being clamped and positioned, wherein the positioning accuracy range is controlled within +/-0.01 mm.
Step S2, electric discharge grinding rough machining, namely starting an electric spark pulse power supply 6, adopting a red copper grinding wheel 3 to perform electric discharge grinding rough machining on the milling cutter blank 2, wherein parameters of the electric discharge grinding rough machining are dynamically adjusted according to the material and hardness of the milling cutter blank 2, rough machining parameters are set to improve machining efficiency, the machining parameters comprise higher machining voltage, higher current, longer pulse width and larger feeding depth, the machining voltage and current are properly improved for blanks with higher hardness, the pulse width is prolonged, the parameters are correspondingly reduced for blanks with lower hardness, so that the machining efficiency and the machining quality are optimized, and the hierarchical machining parameter matching strategy is established, wherein the method comprises the following steps:
When the hardness of the blank is higher than a first hardness threshold value, matching a first-stage pulse width and a first feeding depth parameter by adopting a first preset voltage range and a first preset current value;
And when the hardness of the blank is lower than a second hardness threshold value, correspondingly adopting a second preset voltage range and a second preset current value, and configuring a second-stage pulse width and a second feeding depth parameter.
Through a step-type parameter matching mechanism, the balance optimization of the material removal rate and the quality of the processed surface is realized on the premise of ensuring the processing stability.
And step S3, grinding wheel switching and finishing positioning, namely rotating the bidirectional grinding head after finishing the electric discharge grinding rough machining to enable the diamond grinding wheel 5 to be switched to a working position, and adjusting the grinding head position to enable the diamond grinding wheel 5 and the milling cutter blank 2 to reach a finishing starting point.
The step S4 is mechanical finishing, namely mechanical grinding finishing is carried out on the milling cutter blank 2 by adopting the diamond grinding wheel 5, one-step forming is carried out, wherein finishing parameters are set according to the design requirement of the milling cutter and the surface condition after rough machining, the finishing parameters mainly comprise the control of the linear speed, the feeding speed and the grinding depth of the diamond grinding wheel 5, the feeding speed and the grinding depth are reduced for the parts with high precision requirements, the linear speed is improved, and the machining efficiency is improved by adjusting the parameters for the parts with general precision requirements.
In this embodiment, a milling cutter blank straight groove is primarily machined, and the specific machining process is as follows:
firstly, clamping and positioning a workpiece (corresponding to step S1), as shown in fig. 3 (a), firmly fixing a milling cutter blank 2 on a workbench 1 of a high-precision numerical control machine tool, and ensuring that the milling cutter blank 2 is accurately and firmly positioned, wherein the positioning precision is controlled within +/-0.01 mm. The red copper grinding wheel 3 and the diamond grinding wheel 5 are respectively arranged on a bidirectional grinding head of a machine tool, the positions of the bidirectional grinding head are adjusted through a machine tool control system, so that the red copper grinding wheel 3 and the diamond grinding wheel 5 perform tool setting operation with the milling cutter blank 2, and the respective initial positions are confirmed to prepare for subsequent processing.
Then, the electric discharge grinding rough machining (corresponding to step S2) is performed, as shown in fig. 3 (b), the electric spark pulse power module 6 is started to communicate with the red copper grinding wheel 3 on the bidirectional grinding head, and the electric discharge grinding rough machining is performed on the milling cutter blank 2 by adopting the red copper grinding wheel 3. The rough machining parameters are dynamically set according to the material quality and hardness of the milling cutter blank 2 to improve the machining efficiency, and the parameters comprise a machining voltage set value which is correspondingly improved along with the increase of the hardness of the material, a peak current density parameter which is positively correlated with the hardness of the material, a pulse duration parameter which is expanded based on the hardness characteristic and a progressive layering feeding depth strategy which is adaptive to the hardness change. When the high-hardness material is adopted, the voltage setting value is regulated, the current is increased, the duration time of each discharge is prolonged, the depth of each undercut of the cutter is increased, and when the low-hardness material is adopted, the parameter value is properly reduced, so that the processing efficiency is improved, and the processing quality is ensured to be stable.
In the course of electric discharge grinding rough machining, the electric discharge state is monitored in real time through a voltage and current sensor, and data are collected. Once an abnormal discharge or short circuit condition is detected, the machining is suspended, and the machining is continued after the position of the grinding wheel is adjusted by the machine tool control system.
Then, the grinding wheel is switched and positioned for finish machining (corresponding to step S3), and as shown in fig. 3 (C), after the finish of the electric discharge grinding rough machining, the bidirectional grinding head of the machine tool rotates through the C axis, so that the diamond grinding wheel 5 is switched to the working position. Subsequently, the machine tool control system adjusts the grinding head position again, so that the diamond grinding wheel 5 and the milling cutter blank 2 reach the finish machining starting point, and the accurate finish machining position is ensured.
Finally, mechanical finishing (corresponding to step S4), as shown in fig. 3 (d), the milling cutter blank 2 is mechanically ground and finished by using the diamond grinding wheel 5, and is formed once. The linear speed, feed speed and grinding depth of the diamond grinding wheel 5 are precisely set according to the design requirements of the milling cutter and the surface condition after rough machining. For the parts with high precision requirements, the feeding speed and the grinding depth are reduced, the linear speed is increased, and for the parts with common precision requirements, the parameters are properly adjusted to improve the processing efficiency.
In the mechanical finishing process, the grinding state of the diamond grinding wheel 5 is monitored in real time, and the machining stability is ensured. When all the machining steps on the milling cutter blank 2 are completed, the machining is completed.
Through the specific implementation manner, the milling cutter electric discharge grinding combined machining manufacturing method and device can effectively combine the advantages of electric discharge machining and grinding machining, improve the machining precision and production efficiency of the milling cutter, and meet the requirements of modern manufacturing industries on high quality and high precision of the milling cutter.
It should be noted that the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited to the foregoing embodiments, but may be modified or substituted for some of the features described in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The electric discharge grinding combined machining manufacturing equipment of the milling cutter is characterized by comprising a high-precision numerical control machine tool, an electric spark pulse power supply module and a mechanical grinding driving module;
The high-precision numerical control machine tool comprises a machine tool main body, a workbench and a machine tool spindle, wherein the workbench is positioned at the upper end of one side of the machine tool main body, a milling cutter blank is clamped and fixed through the workbench, the workbench has X, Y, Z three-axis linkage function, the machine tool spindle is positioned at the upper end of the other side of the machine tool main body, the lower end of the machine tool spindle is provided with a bidirectional grinding head, the grinding heads at the two sides are respectively provided with a red copper grinding wheel and a diamond grinding wheel, the grinding wheels at the two sides are arranged on the same spindle, and grinding wheel switching is realized through grinding head rotation, namely C-axis rotation;
The electric spark pulse power supply module is electrically connected with the red copper grinding wheel on the bidirectional grinding head, so as to output high-energy pulses required by rough machining, wherein voltage and pulse width parameters are set according to machining requirement conditions, and the electric discharge grinding rough machining requirements of milling cutter blanks made of different materials are met;
The mechanical grinding driving module is connected with a grinding wheel on the two-way grinding head and is used for providing constant rotation speed control and micro-feeding functions.
2. The electric discharge grinding combined machining manufacturing equipment of the milling cutter according to claim 1 is characterized in that the high-precision numerical control machine tool is provided with an absolute grating ruler and a servo control system, real-time position information of each shaft of the machine tool is accurately recorded through the absolute grating ruler, and the motion track and the position of each shaft of the machine tool and a grinding head are accurately controlled in real time according to data fed back by the grating ruler through the servo control system.
3. The electric discharge grinding combined machining manufacturing equipment of the milling cutter according to claim 1, wherein the bidirectional grinding head of the high-precision numerical control machine tool adopts a high-precision bearing and a transmission mechanism, and the precision of the rotation angle of the grinding head is controlled within +/-0.01 DEG, so that the grinding wheel is ensured to reach a machining position after being switched.
4. A machining and manufacturing method based on a combined electric discharge grinding machining and manufacturing equipment of a milling cutter according to any one of claims 1 to 3, characterized by comprising the steps of:
The method comprises the following steps of S1, clamping and positioning a workpiece, namely fixing a milling cutter blank on a workbench, respectively mounting a red copper grinding wheel and a diamond grinding wheel on a bidirectional grinding head on a machine tool spindle, and adjusting the positions of the bidirectional grinding heads to enable the red copper grinding wheel and the milling cutter blank to be in an initial machining position;
Step S2, electric discharge grinding rough machining, namely starting an electric spark pulse power supply, and adopting a red copper grinding wheel to perform electric discharge grinding rough machining on the milling cutter blank;
Step S3, grinding wheel switching and finishing positioning, namely rotating a bidirectional grinding head after finishing electric discharge grinding rough machining to enable the diamond grinding wheel to be switched to a working position, adjusting the position of the grinding head, and enabling the diamond grinding wheel and the milling cutter blank to reach a finishing starting point;
and S4, mechanical finishing, namely mechanically grinding and finishing the milling cutter blank by adopting a diamond grinding wheel, and forming at one time.
5. The electric discharge grinding combined machining manufacturing equipment for the milling cutter according to claim 4, wherein the clamping tool is used in the step S1 of clamping and positioning, and the positioning accuracy range is controlled within +/-0.01 mm.
6. The electric discharge grinding combined machining manufacturing equipment for milling cutters according to claim 4, wherein in the step S2, parameters of electric discharge grinding rough machining are dynamically adjusted according to the material and hardness of milling cutter blanks, and rough machining parameters including machining voltage, current, pulse width and feeding depth are set.
7. The electric discharge grinding combined machining manufacturing equipment for the milling cutter according to claim 4, wherein in the step S4, finishing parameters are set according to design requirements of the milling cutter and surface conditions after rough machining, and the finishing parameters mainly comprise control of linear speed, feeding speed and grinding depth of the diamond grinding wheel.
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| CN202510687963.1A CN120347311A (en) | 2025-05-27 | 2025-05-27 | Electric discharge grinding combined machining manufacturing equipment and method for milling cutter |
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| CN202510687963.1A CN120347311A (en) | 2025-05-27 | 2025-05-27 | Electric discharge grinding combined machining manufacturing equipment and method for milling cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121246047A (en) * | 2025-09-02 | 2026-01-02 | 辽阳兴旺石墨制品有限公司 | Composite machining system and process for graphite taper holes |
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- 2025-05-27 CN CN202510687963.1A patent/CN120347311A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121246047A (en) * | 2025-09-02 | 2026-01-02 | 辽阳兴旺石墨制品有限公司 | Composite machining system and process for graphite taper holes |
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