WO2017154671A1 - エンドミル加工装置およびcam装置およびncプログラムおよび加工方法 - Google Patents
エンドミル加工装置およびcam装置およびncプログラムおよび加工方法 Download PDFInfo
- Publication number
- WO2017154671A1 WO2017154671A1 PCT/JP2017/007811 JP2017007811W WO2017154671A1 WO 2017154671 A1 WO2017154671 A1 WO 2017154671A1 JP 2017007811 W JP2017007811 W JP 2017007811W WO 2017154671 A1 WO2017154671 A1 WO 2017154671A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- end mill
- work material
- machining
- contact angle
- processing
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
- B23C3/30—Milling straight grooves, e.g. keyways
-
- 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
- B23Q15/12—Adaptive control, i.e. adjusting itself to have a performance which is optimum according to a preassigned criterion
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/404—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4093—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4155—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/28—Arrangement of teeth
- B23C2210/282—Unequal angles between the cutting edges, i.e. cutting edges unequally spaced in the circumferential direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2250/00—Compensating adverse effects during milling
- B23C2250/16—Damping vibrations
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35101—CC cutter contact path
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37355—Cutting, milling, machining force
Definitions
- the technology of this specification relates to an end mill machining apparatus, a CAM apparatus, an NC program, and a machining method. More specifically, the present invention relates to an end mill machining apparatus, a CAM apparatus, an NC program, and a machining method that suppress vibration during machining.
- Cutting is often used in the manufacturing process of industrial products.
- the cutting process may be used for, for example, direct processing of a product or processing of a mold.
- chatter vibration may occur in the tool. This chatter vibration causes deterioration of the finished surface shape and breakage of the tool.
- chatter vibration There are two types of chatter vibration: forced vibration and self-excited vibration.
- Forced vibration is vibration in which some cause of forced vibration is magnified by the vibration characteristics of the machine. For example, it is caused by intermittent cutting force generated in end milling. However, forced vibration may not be included in chatter vibration.
- Self-excited vibration is vibration that grows and increases due to the presence of a closed loop that feeds back vibration during the cutting process.
- Main self-excited vibration includes regenerative self-excited vibration and mode coupling self-excited vibration.
- Regenerative self-excited vibration is, for example, the vibration that occurred at the time of cutting one rotation or one blade before remains as the undulation of the processed surface, and the cutting thickness varies due to the residual shape and current vibration Caused by
- the mode coupling type self-excited vibration is generated, for example, when the two vibration modes have close resonance frequencies.
- chatter vibration is summarized as shown in Table 1 below.
- Patent Document 1 discloses an unequal division end mill in which the number of teeth is an odd number and different division angles are provided.
- an object of the present invention is to provide an end mill machining apparatus, a CAM apparatus, an NC program, and a machining method that are intended to suppress regenerative self-excited vibration and mode coupling self-excited vibration.
- An end mill processing device in one mode of this indication has an end mill and a control part which controls an end mill.
- the ratio of the protruding length of the end mill to the diameter of the end mill is 5 or more and 50 or less.
- the end mill has unequal pitch leads or unequal leads.
- the control unit sets the contact angle between the end mill and the work material during machining to a critical contact angle ⁇ lim or less.
- an end mill machining apparatus a CAM apparatus, an NC program, and a machining method which are intended to suppress regenerative self-excited vibration and mode-coupling self-excited vibration.
- FIG. (1) for demonstrating the trochoid locus
- FIG. (2) for demonstrating the trochoid locus
- graph (the 1) which shows the relationship between cutting force component force ratio kr and critical contact angle (theta) lim .
- FIG. 1 is a diagram showing an end mill processing device 100 of the present embodiment.
- the end mill processing apparatus 100 includes an end mill 10, a processing unit 130, a housing 101, an X axis motor 111, a Y axis motor 112, a Z axis motor 113, an X axis sensor 121, a Y axis sensor 122, A Z-axis sensor 123, an X-axis feed table 141, a Y-axis feed table 142, and a control unit 150 are included.
- the end mill 10 is a tool for processing a work material that is actually a processing target.
- the end mill 10 includes a blade portion 11 that processes a work material, and a non-blade portion 12 that is formed integrally with the blade portion 11 and has no blade.
- the blade part 11 is formed at a position closer to the tip than the non-blade part 12.
- the machining unit 130 is for supporting the main shaft that holds the end mill 10.
- the machining unit 130 can be moved in the Z-axis direction by the Z-axis motor 113.
- the X-axis feed table 141 is a table for placing the work material M1.
- the X-axis feed table 141 can be moved in the X-axis direction by the X-axis motor 111.
- the Y-axis feed table 142 can be moved in the Y-axis direction by the Y-axis motor 112. Thereby, the X-axis feed table 141 can move in the X-axis direction and the Y-axis direction.
- the X-axis motor 111 is for moving the X-axis feed table 141 in the X-axis direction.
- the Y-axis motor 112 is for moving the Y-axis feed table 142 in the Y-axis direction.
- the Z-axis motor 113 is for moving the machining unit 130 in the Z-axis direction. With these motors, the relative position of the end mill 10 with respect to the work material M1 can be adjusted.
- FIG. 2 is a cross-sectional view schematically showing the internal structure of the processing unit 130. Inside the processing unit 130, in addition to the end mill 10, a tool holder 131, a rotation main shaft 132, and a main shaft bearing 133 are provided.
- the tool holder 131 is a tool holding unit for holding the end mill 10 and coupling to the rotary main shaft 132.
- the tool holder 131 has a recess 131a.
- the end mill 10 is held in a state sandwiched between the recesses 131a.
- the holding mechanism for the tool holder 131 to hold the end mill 10 is the same as that in the known art.
- the tool holder 131 is coupled to the rotary main shaft 132 and receives rotational driving. That is, the tool holder 131 rotates with the end mill 10.
- the main shaft bearing 133 is one of bearings for supporting the rotating main shaft 132. Therefore, the main shaft bearing 133 supports the rotating body that rotates integrally from the rotating main shaft 132 to the end mill 10.
- the control unit 150 controls each unit of the end mill processing apparatus 100.
- the control unit 150 controls the end mill 10 so as to draw a trochoidal trajectory with respect to the work material M1.
- the end mill 10 has a very elongated shape compared to a conventional end mill.
- the end mill 10 includes a diameter D of the end mill 10 and a protruding length L of the end mill 10.
- the ratio (L / D) of the protruding length L of the end mill 10 to the diameter D of the end mill 10 is 5 or more and 50 or less.
- the processing method of this embodiment is suitable when the ratio (L / D) of the protruding length L of the end mill 10 to the diameter D of the end mill 10 is 10 or more and 50 or less.
- the end mill 10 has unequal leads.
- the blade part 11 of the end mill 10 has, for example, two blades.
- the number of blades of the blade part 11 may be three or more.
- control unit 150 includes an NC program storage unit 161, a program analysis unit 162, a motor control unit 170, and other control units 180.
- the NC program storage unit 161 is for storing NC programs.
- the program analysis unit 162 analyzes the NC program stored in the NC program storage unit 161 and causes the program to be executed.
- the motor control unit 170 is for controlling each motor.
- the motor control unit 170 includes an X-axis control unit 171, a Y-axis control unit 172, a Z-axis control unit 173, and a main shaft control unit 174.
- the X-axis control unit 171 is for controlling the position of the work material M1 in the X-axis direction.
- the position refers to the relative position of the end mill 10 with respect to the work material M1.
- the Y-axis control unit 172 is for controlling the position of the workpiece M1 in the Y-axis direction.
- the Z-axis control unit 173 is for controlling the position of the work material M1 in the Z-axis direction.
- the spindle control unit 174 is for controlling the rotation of the spindle of the end mill 10.
- the X-axis sensor 121 is for measuring the position of the work material M1 in the X-axis direction.
- the Y-axis sensor 122 is for measuring the position of the workpiece M1 in the Y-axis direction.
- the Z-axis sensor 123 is for measuring the position of the work material M1 in the Z-axis direction.
- the X-axis motor 111 is for changing the position of the workpiece M1 in the X-axis direction.
- the Y-axis motor 112 is for changing the position of the workpiece M1 in the Y-axis direction.
- the Z-axis motor 113 is for changing the position of the work material M1 in the Z-axis direction. Further, the Z-axis motor 113 may change the position of the machining unit 130 having the end mill 10 in the Z-axis direction.
- the spindle sensor 124 is for detecting the rotation of the spindle.
- the main shaft motor 114 is for rotating the main shaft.
- the input receiving unit 191 is for receiving an instruction input by an operator.
- the input reception unit 191 can receive input of shape information of the end mill 10 and material information of the work material M1.
- Each other part 190 is a structure other than the above that the end mill processing apparatus 100 has.
- control unit 150 controls each unit of the end mill processing apparatus 100. As will be described later, the control unit 150 controls the end mill 10 so as to draw a trochoidal trajectory with respect to the work material M1. Actually, the X-axis control unit 171 and the Y-axis control unit 172 control the X-axis motor 111 and the Y-axis motor 112 so that the end mill 10 draws a trochoidal locus with respect to the work material M1. To do.
- processing method the processing method of the end mill processing apparatus 100 of this embodiment is demonstrated.
- the control unit 150 controls machining based on the NC program.
- the control unit 150 of the end mill processing apparatus 100 controls the end mill 10 so as to draw a trochoidal trajectory with respect to the work material M1.
- FIG. 4 is a diagram showing a trochoid locus drawn by the end mill 10.
- the contact angle which is an angle range in which the end mill 10 is in contact with the workpiece M1 during processing, can be reduced. Therefore, (b-2) mode coupling type self-excited vibration can be suppressed by performing trochoidal machining.
- FIG. 5 is a diagram illustrating a contact angle at which the end mill 10 is in contact with the work material M1 when the end mill 10 is moved so as to draw a trochoidal locus.
- the contact angle is an angle at which the blade portion 11 of the end mill 10 is in contact with the work material M1.
- the critical contact angle ⁇ lim is the maximum contact angle that does not generate mode-coupled self-excited vibration. The critical contact angle ⁇ lim will be described later.
- control unit 150 sets the contact angle between the end mill 10 and the work material M1 at the time of machining to a critical contact angle ⁇ lim or less.
- the axial cutting depth P1 of the end mill 10 can be set to, for example, 7 mm or more and 9 mm or less for processing stability. Therefore, as will be described later, productivity is improved 10 times or more.
- the axial cutting depth P1 depends on the diameter D of the end mill 10. As the diameter D of the end mill 10 is larger, the axial cutting depth P1 may be set larger. Therefore, the axial cutting depth P1 can be set to 1/6 or more of the diameter D of the end mill 10.
- the critical contact angle ⁇ lim is an angle at which the blade portion 11 of the end mill 10 is in contact with the work material M1.
- the critical contact angle ⁇ lim is the maximum contact angle that does not generate mode-coupled self-excited vibration. That is, when the trochoidal machining in a state where the end mill 10 in the following contact angles critical contact angle theta lim is in contact with the workpiece M1, self-excited vibration is not generated. When trochoidal machining is performed with the end mill 10 in contact with the workpiece M1 at a contact angle larger than the critical contact angle ⁇ lim , self-excited vibration can occur.
- the critical contact angle ⁇ lim is determined by the shape of the blade of the end mill 10 and the work material M1. Therefore, if the shape information of the end mill 10 and the material information of the workpiece M1 are input to the end mill processing apparatus 100, the end mill processing apparatus 100 can perform processing while suppressing mode-coupling type self-excited vibration.
- the direct current component A 0 of the cutting force coefficient matrix is given by the following equation.
- N Number of blades kr: Cutting force component force ratio ⁇ st : Cutting start angle of each blade ⁇ ed : Cutting end angle of each blade
- the cutting force component force ratio kr is the ratio of the back component force to the main component force.
- kr K2 / K1.
- a and ⁇ c such that both the real part and the imaginary part of Expression (3) are 0 are the critical axial cutting depth a lim and the critical frequency ⁇ clim at which self-excited vibration can occur.
- the transfer function G is expressed using modal parameters.
- the transfer function G is expressed by the following equation.
- the critical contact angle ⁇ lim was defined as ⁇ when no solution satisfying the formula (3) appeared even when the axial depth of cut a was increased to infinity.
- FIG. 6 is a graph (part 1) showing a relationship between the cutting force component force ratio kr and the critical contact angle ⁇ lim .
- the horizontal axis of FIG. 6 is the cutting force component force ratio kr.
- the vertical axis in FIG. 6 is the critical contact angle ⁇ lim (°).
- FIG. 6 shows an up-cut case and a down-cut case. At that time, the transfer function G1 was used. The difference in critical contact angle ⁇ lim is small between up-cut and down-cut.
- the critical contact angle ⁇ lim increases as the cutting force component force ratio kr increases.
- the region below the line in FIG. 6 is a range that can be stably processed.
- the critical contact angle ⁇ lim is about 29 °. Therefore, if the contact angle at which the end mill 10 contacts the work material M1 is set to 29 ° or less, generation of self-excited vibration can be avoided.
- the difference in the critical contact angle ⁇ lim is small between the case of up-cutting and the case of down-cutting.
- the critical contact angle ⁇ lim is slightly larger in the case of down-cutting than in the case of up-cutting. That is, the end mill processing apparatus 100 can process more stably by using a down cut. Therefore, it is better to use a down cut. That is, the direction of rotation of the end mill 10 and the direction of rotation of the trochoidal trajectory are preferably opposite directions.
- FIG. 7 is a graph (part 2) showing the relationship between the cutting force component force ratio kr and the critical contact angle ⁇ lim .
- the horizontal axis in FIG. 7 is the cutting force component force ratio kr.
- the vertical axis in FIG. 7 is the critical contact angle ⁇ lim (°).
- FIG. 7 shows the case of the transfer function G1 and the case of the transfer function G2.
- the line in FIG. 7 shows the analysis result when cutting by down-cutting.
- the difference in the critical contact angle ⁇ lim is small between the transfer function G1 and the transfer function G2.
- the critical contact angle ⁇ lim increases as the cutting force component force ratio kr increases.
- the region below the line in FIG. 7 is a range that can be stably processed.
- the end mill processing apparatus 100 has a long and narrow end mill 10 with unequal leads, and processes the workpiece M1 so that the end mill 10 draws a trochoidal locus. Therefore, the unequal lead end mill 10 suppresses (b-1) regenerative self-excited vibration. Further, the processing method of the trochoidal locus suppresses (b-2) mode coupling type self-excited vibration. As described above, when processing a narrow and deep groove, the end mill machining apparatus 100 of the present embodiment includes (b-1) a regenerative self-excited vibration and (b-2) a mode coupling self-excited vibration. Both can be suppressed.
- the end mill processing apparatus 100 can easily process narrow and deep grooves as compared with the conventional end mill processing apparatus. Since self-excited vibration can be suppressed, the processing accuracy of the end mill processing apparatus 100 of this embodiment is higher than the processing accuracy of the conventional end mill processing apparatus. Moreover, the processing speed of the end mill processing apparatus 100 of this embodiment is also higher than the processing speed of the conventional end mill processing apparatus. Moreover, in the end mill processing apparatus 100 of this embodiment, a self-excited vibration is hard to generate
- the end mill 10 moves so as to draw a trochoidal locus with respect to the work material M1.
- the trochoid trajectory is a trajectory of motion obtained by superimposing circular motion and translational motion.
- the end mill 10 does not move in the X axis direction and the Y axis direction, and only the workpiece M1 moves in the X axis direction and the Y axis direction.
- the end mill 10 may be moved with respect to the X-axis direction and the Y-axis direction.
- the workpiece M1 is translated while the end mill 10 is circularly moved. Even in this case, the end mill 10 can move so as to draw a trochoidal locus with respect to the work material M1.
- the end mill processing apparatus 100 may use an end mill with an unequal pitch lead instead of the end mill 10 with an unequal lead. Even in that case, (b-1) regenerative self-excited vibration can be suppressed.
- the control unit 150 may include a chatter vibration frequency detection unit and a calculation unit.
- the chatter vibration frequency detection unit has a function of detecting the chatter vibration frequency of the end mill 10. Based on the chatter vibration frequency, the blade information, and the material information of the work material M1, the calculation unit calculates the rotation speed and trochoidal trajectory of the main shaft that can appropriately suppress self-excited vibration. To do.
- Relative position of the end mill with respect to the work material In the present embodiment, the X-axis, Y-axis, and Z-axis coordinates of the end mill 10, that is, the relative position with respect to the work material M 1 is adjusted as in the end mill processing apparatus 100. However, of course, there are other methods for adjusting the relative position of the end mill 10 with respect to the work material M1 by an actuator. The present embodiment only shows one example, and is not limited to this case.
- the end mill processing apparatus 100 of the present embodiment has an elongated end mill 10 with unequal leads, and processes the workpiece M1 so that the end mill 10 draws a trochoidal locus. Therefore, when processing a narrow and deep groove, the end mill processing apparatus 100 of the present embodiment performs (b-1) a regenerative self-excited vibration and (b-2) a mode-coupling self-excited vibration. Can be suppressed. As a result, the end mill processing apparatus 100 can easily process narrow and deep grooves as compared with the conventional end mill processing apparatus.
- the processing accuracy of the end mill processing apparatus 100 of the present embodiment is higher than the processing accuracy of the conventional end mill processing apparatus.
- the processing speed of the end mill processing apparatus 100 of this embodiment is also higher than the processing speed of the conventional end mill processing apparatus.
- a self-excited vibration is hard to generate
- FIG. 8 shows the overall configuration of the present embodiment.
- the machining system 1 includes a CAD / CAM device A1, an NC program creation device A2, and an end mill machining device 100.
- the CAD / CAM device A1 includes a CAD function unit that performs component design, mold design, and the like, and a CAM function unit that performs process design from these 3D data and determines NC data such as a tool trajectory and a cutting depth.
- the NC program creation device A2 is a device for creating an NC program from the NC data determined by the CAD / CAM device A1.
- CAD / CAM device A1 determines the trochoidal trajectory in consideration of the shape of the end mill 10. Then, based on the diameter D and the protruding length L of the end mill 10, the axial depth of cut in the stable region of the analysis result to be described later and the rotational speed of the end mill 10 are determined. In other words, the CAD / CAM device A1 has data of a stable region of processing of analysis results to be described later with respect to various combinations of the diameter D and the protruding length L of the end mill 10.
- the CAD / CAM device A1 supports process design or work design using the shape information of the end mill 10 and the material information of the work material M1. Specifically, design support is performed so as to derive optimum machining conditions based on the data of the stable region with respect to the diameter D and the protruding length L of the end mill 10 and the data of the workpiece M1. Design support here refers to supporting process design and work design.
- the NC program or the NC program operates the end mill processing apparatus 100 based on the shape information of the end mill 10 and the material information of the workpiece M1. Specifically, the axial depth of cut of the stable region and the rotation speed of the end mill 10 are determined based on the data of the stable region with respect to the diameter D and the protruding length L of the end mill 10 and the data of the workpiece M1. Also good.
- Modified example 4-1 Processing Shape
- the end mill processing apparatus 100 described so far can, of course, process not only the groove shape but also other three-dimensional shapes.
- a third embodiment will be described.
- a trajectory different from the trochoidal trajectory of the first embodiment will be described. If the contact angle between the end mill 10 and the work material M1 is equal to or smaller than the critical contact angle ⁇ lim , a trajectory described below may be adopted.
- FIG. 9 is a diagram showing a case where the trajectory of the motion obtained by superimposing the elliptical motion and the translational motion is used as the trajectory of the end mill 10.
- the contact angle between the end mill 10 and the work material M ⁇ b> 1 is determined as critical contact.
- the angle ⁇ lim or less can be set. Also in this case, mode coupling type self-excited vibration can be suppressed.
- FIG. 10 is a diagram showing a case where the trajectory of the motion obtained by superimposing the triangular rotational motion and the translational motion is used as the trajectory of the end mill 10.
- the contact angle can be less than or equal to the critical contact angle ⁇ lim . Also in this case, mode coupling type self-excited vibration can be suppressed.
- (C4) is a case where the processing methods of the first embodiment and the third embodiment are used. However, this analysis does not include conditions for the end mill trajectory. That is, (C4) corresponds to the case where the end mill 10 is controlled so as to draw a trajectory of a motion obtained by superimposing a linear motion or a curved motion and an arbitrary closed curved motion.
- the specifications of the end mill used for the analysis are as shown in Table 2 below.
- FIG. 11 is a graph showing an analysis result when slotting is performed using a lead end mill of equal pitch or the like.
- the horizontal axis in FIG. 11 represents the rotation speed (rpm) of the end mill.
- the vertical axis in FIG. 11 is the depth of cut (mm) in the axial direction. As shown in FIG. 11, if the depth of cut in the axial direction of the end mill is about 0.01 mm, stable processing can be performed. Therefore, a very long processing time is required when processing a groove having a depth of several centimeters to several tens of centimeters.
- FIG. 12 is a graph showing an analysis result when slotting is performed using an unequal lead end mill.
- the horizontal axis in FIG. 12 represents the rotation speed (rpm) of the end mill.
- the vertical axis in FIG. 12 is the axial cutting depth (mm).
- rpm rotation speed
- mm axial cutting depth
- FIG. 12 if the depth of cut in the axial direction of the end mill is about 0.01 mm, stable processing can be performed. Therefore, a very long processing time is required when processing a groove having a depth of several centimeters to several tens of centimeters.
- FIG. 13 is a graph showing an analysis result when processing is performed using a lead end mill such as an equal pitch.
- the horizontal axis in FIG. 13 represents the rotation speed (rpm) of the end mill.
- shaft of FIG. 13 is the cutting depth (mm) of an axial direction. As shown in FIG. 13, if the depth of cut in the axial direction of the end mill is about 0.2 mm, stable processing can be performed. For this reason, when a groove having a depth of about several centimeters to several tens of centimeters is processed, a certain long processing time is required.
- FIG. 14 is a graph showing an analysis result when processing is performed using an unequal lead end mill.
- the horizontal axis in FIG. 14 represents the rotation speed (rpm) of the end mill.
- shaft of FIG. 14 is the cutting depth (mm) of an axial direction.
- the depth of cut in the axial direction of the end mill is about 1 mm, stable processing can be performed. Further, even when the end mill has an axial depth of cut of 7 mm or more and 9 mm or less, it can be processed stably. Therefore, when a groove having a depth of about several centimeters to several tens of centimeters is processed, processing can be performed in a short processing time.
- the volume removal rate VR1 when using the rotation speed that can be most suitably processed was 37 (au).
- the volume removal rate VR2 was 21 (au) when the rotation speed that could be most suitably processed was used.
- the volume removal rate VR3 was 41 (au) when the rotation speed that could be most suitably processed was used.
- the volume removal rate VR4 was 497 (au) when the number of rotations that can be most suitably processed was used. Therefore, the processing method of the first embodiment and the third embodiment (FIG. 14) has an efficiency 12 times or more superior to the conventional processing method (FIGS. 11, 12, and 13).
- the end mill machining apparatus 100 of the first and third embodiments suppresses (b-1) regenerative self-excited vibration and (b-2) mode-coupling self-excited vibration. I think that.
- the improvement in the processing stability of the end mill processing apparatus 100 is considered to be because the self-excited vibration can be suppressed. This is because the above two types of self-excited vibrations are likely to increase exponentially and are very sensitive to processing stability.
- the present disclosure includes the following end mill machining apparatus, CAM apparatus, NC program, and machining method.
- Item 1 In an end mill processing apparatus having an end mill and a control unit that controls the end mill, a ratio of a protruding length of the end mill to a diameter of the end mill is not less than 5 and not more than 50, and the end mill has a non-uniform pitch lead or the like An unequal lead is provided, and the control unit sets a contact angle between the end mill and the work material during machining to a critical contact angle ⁇ lim or less.
- This end mill processing apparatus can suppress the generation of regenerative self-excited vibration and mode coupling self-excited vibration. For this reason, there is almost no possibility that an end mill will be damaged.
- this end mill device is suitable for processing narrow and deep grooves.
- the control unit controls the end mill so as to draw a trajectory of a motion obtained by superimposing a linear motion or a curved motion and a closed curved motion on the work material.
- the control unit controls the end mill so as to draw a trochoidal trajectory with respect to the work material. 4).
- Item 4 The end mill processing apparatus according to any one of items 1 to 3, wherein an axial depth of cut of the end mill is 1/6 or more of a diameter of the end mill. 5.
- Item 5 Item 5.
- the end mill processing apparatus according to any one of Items 1 to 4, wherein a rotation direction of the end mill and a rotation direction of the trochoid locus are opposite directions. 6).
- Item 6 In the CAM device that supports the end mill processing apparatus according to any one of items 1 to 5, the process design or the work design is supported by using the end mill blade information and the material information of the work material.
- Is. 7 An NC program for operating the end mill processing device according to any one of items 1 to 5, wherein the end mill processing device is operated based on the tool information of the end mill and the material information of the work material. It is what makes it work. 8).
- Item 8 In the processing method of processing a work material using an end mill, the end mill has a lead having an unequal pitch or an unequal lead, and the ratio of the protruding length of the end mill to the diameter of the end mill is 5 to 50 , And the work material is machined with the contact angle between the end mill and the work material at the time of machining being a critical contact angle ⁇ lim or less. 9.
- Item 9 Item 9. The machining method according to Item 8, wherein the workpiece is machined by moving the end mill so as to draw a trochoidal locus with respect to the workpiece.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Geometry (AREA)
- Numerical Control (AREA)
- Milling Processes (AREA)
- Automatic Control Of Machine Tools (AREA)
Abstract
Description
(a)強制振動
(b)自励振動
(b-1)再生型の自励振動
(b-2)モードカップリング型の自励振動
1.エンドミル加工装置
図1は、本実施形態のエンドミル加工装置100を示す図である。エンドミル加工装置100は、エンドミル10と、加工ユニット130と、筐体101と、X軸モーター111と、Y軸モーター112と、Z軸モーター113と、X軸センサ121と、Y軸センサ122と、Z軸センサ123と、X軸送りテーブル141と、Y軸送りテーブル142と、制御部150と、を有している。
エンドミル10は、従来のエンドミルに比べて非常に細長い形状を有している。エンドミル10は、エンドミル10の径D、エンドミル10の突出し長さL、を備えている。エンドミル10の径Dに対するエンドミル10の突出し長さLの比(L/D)は、5以上50以下である。また、エンドミル10の径Dに対するエンドミル10の突出し長さLの比(L/D)が、10以上50以下の場合に、本実施形態の加工方法は適している。
本実施形態の制御系を図3に示す。図3に示すように、制御部150は、NCプログラム格納部161と、プログラム解析部162と、モーター制御部170と、その他の制御部180と、を有している。
ここで、本実施形態のエンドミル加工装置100の加工方法について説明する。この加工方法においては、NCプログラムに基づいて、制御部150が、加工を制御する。本実施形態では、エンドミル加工装置100の制御部150は、被削材M1に対してトロコイド軌跡を描くようにエンドミル10を制御する。
5-1.臨界接触角度θlim
ここで、臨界接触角度θlim について説明する。接触角度は、エンドミル10の刃部11が被削材M1に接触している角度である。臨界接触角度θlim は、モードカップリング型の自励振動を生じない最大の接触角度のことである。つまり、臨界接触角度θlim 以下の接触角度でエンドミル10が被削材M1に接触している状態でトロコイド加工をする場合には、自励振動は発生しない。臨界接触角度θlim より大きい接触角度でエンドミル10が被削材M1に接触している状態でトロコイド加工をする場合には、自励振動が発生しうる。
一般に、再生型の自励振動およびモードカップリング型の自励振動に対する安定性を支配する臨界方程式は、次式で与えられる。
a:軸方向切込み深さ
Kt:比切削抵抗
ωc :びびり周波数
T:1刃間の遅れ時間
A0 :切削力係数行列の直流成分
G(iωc ):びびり周波数時の伝達関数
上記の式(3)、(4)の条件の下で、切削力分力比krと臨界接触角度θlim との間の関係について解析を行った。解析にあたって、比切削抵抗Ktとして2406(Mpa)を用いた。また、次の伝達関数G1、G2を用いた。
mxx=7.7108×10-3(kg)
cxx=1.9844(N・s/m)
kxx=0.5905×106 (N/m)
myy=7.5263×10-3(kg)
cyy=2.1023(N・s/m)
kyy=0.4958×106 (N/m)
mxx=45.5×10-3(kg)
cxx=13.6315(N・s/m)
kxx=4.8633×106 (N/m)
myy=42.4×10-3(kg)
cyy=15.0255(N・s/m)
kyy=4.5432×106 (N/m)
本実施形態のエンドミル加工装置100は、不等リードの細長いエンドミル10を有するとともに、エンドミル10をトロコイド軌跡を描くようにして被削材M1を加工する。そのため、不等リードのエンドミル10が(b-1)再生型の自励振動を抑制する。また、トロコイド軌跡の加工方法が、(b-2)モードカップリング型の自励振動を抑制する。このように、狭く深い溝を加工する場合に、本実施形態のエンドミル加工装置100は、(b-1)再生型の自励振動と、(b-2)モードカップリング型の自励振動と、の両方を抑制することができる。
7-1.トロコイド軌跡
本実施形態のエンドミル加工装置100では、エンドミル10は、被削材M1に対してトロコイド軌跡を描くように移動する。トロコイド軌跡は、円運動と並進運動とを重ね合わせた運動の軌跡である。本実施形態では、エンドミル10は、X軸方向、Y軸方向に対して移動せず、被削材M1のみがX軸方向、Y軸方向に対して移動する。しかし、エンドミル10について、X軸方向、Y軸方向に対して移動させてもよい。例えば、エンドミル10について円運動をさせつつ、被削材M1を並進運動させる。この場合においても、エンドミル10は、被削材M1に対してトロコイド軌跡を描くように移動できる。
本実施形態のエンドミル加工装置100は、不等リードのエンドミル10の代わりに不等ピッチ等リードのエンドミルを用いてもよい。その場合であっても、(b-1)再生型の自励振動を抑制することができる。
制御部150は、びびり振動周波数検知部と、算出部と、を有しているとよい。びびり振動周波数検知部は、エンドミル10のびびり振動周波数を検知する機能を有している。そして算出部は、上記のびびり振動周波数と、上記の刃部の情報および被削材M1の材料情報に基づいて、自励振動を適切に抑制することのできる主軸の回転数およびトロコイド軌跡を算出する。
本実施形態では、エンドミル10のX軸、Y軸、Z軸座標、すなわち、被削材M1に対する相対位置を、エンドミル加工装置100のように調整することとした。しかし、もちろん、エンドミル10の被削材M1に対する相対位置をアクチュエーターにより調整する方法は、他にもある。本実施形態は、その一例を示したにすぎず、この場合に限定するものではない。
もちろん、上記の各変形例を自由に組み合わせて用いてよい。
本実施形態のエンドミル加工装置100は、不等リードの細長いエンドミル10を有するとともに、エンドミル10をトロコイド軌跡を描くようにして被削材M1を加工する。そのため、狭く深い溝を加工する場合に、本実施形態のエンドミル加工装置100は、(b-1)再生型の自励振動と、(b-2)モードカップリング型の自励振動と、を抑制することができる。その結果、エンドミル加工装置100は、従来のエンドミル加工装置に比べて、狭く深い溝を容易に加工することができる。
第2の実施形態について説明する。本実施形態では、第1の実施形態で説明したエンドミル加工装置を有する加工システムについて説明する。
本実施形態の全体の構成を図8に示す。図8に示すように、加工システム1は、CAD/CAM装置A1と、NCプログラム作成装置A2と、エンドミル加工装置100と、を有している。
CAD/CAM装置A1では、エンドミル10の形状を考慮してトロコイド軌跡を決定する。そして、エンドミル10の径Dおよび突出し長さL等に基づいて、後述する解析結果の安定領域の軸方向の切込み深さおよびエンドミル10の回転数を決定する。つまり、CAD/CAM装置A1は、種々のエンドミル10の径Dおよび突出し長さLの組み合わせについて、後述する解析結果の加工の安定領域のデータを所有している。
または、NCプログラムが、エンドミル10の形状情報および被削材M1の材料情報に基づいて、エンドミル加工装置100を動作させる。具体的には、エンドミル10の径Dおよび突出し長さLに対する安定領域のデータおよび被削材M1のデータに基づいて、安定領域の軸方向の切込み深さおよびエンドミル10の回転数を決定してもよい。
4-1.加工形状
これまで説明したエンドミル加工装置100は、もちろん、溝形状だけでなく、その他の3次元形状の加工を行うことができる。
第3の実施形態について説明する。本実施形態では、第1の実施形態のトロコイド軌跡とは異なる軌跡について説明する。エンドミル10と被削材M1との間の接触角度が、臨界接触角度θlim 以下であれば、以下に説明する軌跡を採用してもよい。
図9は、楕円運動と並進運動とを重ね合わせた運動の軌跡をエンドミル10の軌跡とした場合を示す図である。図9に示すように、楕円運動と並進運動とを重ね合わせた運動の軌跡をエンドミル10の軌跡として用いた場合であっても、エンドミル10と被削材M1との間の接触角度を臨界接触角度θlim 以下とすることができる。この場合にも、モードカップリング型の自励振動を抑制できる。
図10は、三角回転運動と並進運動とを重ね合わせた運動の軌跡をエンドミル10の軌跡とした場合を示す図である。図10に示すように、三角形に近い形状の回転運動と並進運動とを重ね合わせた運動の軌跡をエンドミル10の軌跡として用いた場合であっても、エンドミル10と被削材M1との間の接触角度を臨界接触角度θlim 以下とすることができる。この場合にも、モードカップリング型の自励振動を抑制できる。
このように、任意の閉曲線運動と並進運動とを重ね合わせた運動の軌跡を用いた場合であっても、エンドミル10と被削材M1との間の接触角度を臨界接触角度θlim 以下とすることができる。また、並進運動の代わりに任意の曲線運動を採用してもよい。このとき、制御部150は、被削材M1に対して、直線運動または曲線運動と、閉曲線運動と、を重ね合わせた運動の軌跡を描くようにエンドミル10を制御する。
上記の結果に基づいて、加工の安定性について実施した解析について説明する。本解析では、次の4通りの場合についてシミュレーションを行った。
(C1)等ピッチ等リードエンドミルを用いてスロッティング加工を行った場合
(C2)不等リードエンドミルを用いてスロッティング加工を行った場合
(C3)等ピッチ等リードエンドミルを用いて加工を行った場合
(C4)不等リードエンドミルを用いて加工を行った場合
種類 直径 刃数 ねじれ角β1 β2
等ピッチ等リード 6mm 2枚 30° 30°
不等リード 6mm 2枚 27.05° 32.79°
1.項目1
エンドミルと、前記エンドミルを制御する制御部と、を有するエンドミル加工装置において、前記エンドミルの径に対する前記エンドミルの突出し長さの比が5以上50以下であり、前記エンドミルは、不等ピッチ等リードまたは不等リードを有し、前記制御部は、加工時における前記エンドミルと前記被削材との間の接触角度を臨界接触角度θlim 以下とする。
このエンドミル加工装置は、再生型の自励振動およびモードカップリング型の自励振動の発生を抑制することができる。このため、エンドミルが破損するおそれがほとんどない。また、振動が増大することにより加工精度が低下するおそれもほとんどない。そのため、このエンドミル装置は、狭く深い溝の加工に好適である。
2.項目2
項目1に記載のエンドミル加工装置において、前記制御部は、被削材に対して、直線運動または曲線運動と、閉曲線運動と、を重ね合わせた運動の軌跡を描くように前記エンドミルを制御する。
3.項目3
項目2に記載のエンドミル加工装置において、前記制御部は、被削材に対してトロコイド軌跡を描くように前記エンドミルを制御する。
4.項目4
項目1から項目3までのいずれか1項に記載のエンドミル加工装置において、前記エンドミルの軸方向切込み深さが、前記エンドミルの径の1/6以上である。
5.項目5
項目1から項目4までのいずれか1項に記載のエンドミル加工装置において、前記エンドミルの回転方向と、前記トロコイド軌跡の回転方向とは、逆向きの方向である。
6.項目6
項目1から項目5までのいずれか1項に記載のエンドミル加工装置を支援するCAM装置において、前記エンドミルの刃具情報および前記被削材の材料情報を用いて、工程設計もしくは作業設計の支援を行うものである。
7.項目7
項目1から項目5までのいずれか1項に記載のエンドミル加工装置を動作させるためのNCプログラムであって、前記エンドミルの刃具情報および前記被削材の材料情報に基づいて、前記エンドミル加工装置を動作させるものである。
8.項目8
エンドミルを用いて被削材を加工する加工方法において、前記エンドミルとして、不等ピッチ等リードまたは不等リードを有するとともに前記エンドミルの径に対する前記エンドミルの突出し長さの比が5以上50以下のものを用い、加工時における前記エンドミルと前記被削材との間の接触角度を臨界接触角度θlim 以下として前記被削材を加工する。
9.項目9
項目8に記載の加工方法において、前記エンドミルを前記被削材に対してトロコイド軌跡を描くように移動させることにより、前記被削材を加工する。
10…エンドミル
11…刃部
12…非刃部
150…制御部
Claims (9)
- エンドミルと、
前記エンドミルを制御する制御部と、
を有するエンドミル加工装置において、
前記エンドミルの径に対する前記エンドミルの突出し長さの比が5以上50以下であり、
前記エンドミルは、
不等ピッチ等リードまたは不等リードを有し、
前記制御部は、
加工時における前記エンドミルと前記被削材との間の接触角度を臨界接触角度θlim 以下とすること
を特徴とするエンドミル加工装置。 - 請求項1に記載のエンドミル加工装置において、
前記制御部は、
被削材に対して、直線運動または曲線運動と、閉曲線運動と、を重ね合わせた運動の軌跡を描くように前記エンドミルを制御すること
を特徴とするエンドミル加工装置。 - 請求項2に記載のエンドミル加工装置において、
前記制御部は、
被削材に対してトロコイド軌跡を描くように前記エンドミルを制御すること
を特徴とするエンドミル加工装置。 - 請求項1から請求項3までのいずれか1項に記載のエンドミル加工装置において、
前記エンドミルの軸方向切込み深さが、
前記エンドミルの径の1/6以上であること
を特徴とするエンドミル加工装置。 - 請求項1から請求項4までのいずれか1項に記載のエンドミル加工装置において、
前記エンドミルの回転方向と、
前記トロコイド軌跡の回転方向とは、
逆向きの方向であること
を特徴とするエンドミル加工装置。 - 請求項1から請求項5までのいずれか1項に記載のエンドミル加工装置を支援するCAM装置において、
前記エンドミルの刃具情報および前記被削材の材料情報を用いて、工程設計もしくは作業設計の支援を行うものであること
を特徴とするCAM装置。 - 請求項1から請求項5までのいずれか1項に記載のエンドミル加工装置を動作させるためのNCプログラムであって、
前記エンドミルの刃具情報および前記被削材の材料情報に基づいて、前記エンドミル加工装置を動作させるものであること
を特徴とするNCプログラム。 - エンドミルを用いて被削材を加工する加工方法において、
前記エンドミルとして、不等ピッチ等リードまたは不等リードを有するとともに前記エンドミルの径に対する前記エンドミルの突出し長さの比が5以上50以下のものを用い、
加工時における前記エンドミルと前記被削材との間の接触角度を臨界接触角度θlim 以下として前記被削材を加工すること
を特徴とする加工方法。 - 請求項8に記載の加工方法において、
前記エンドミルを前記被削材に対してトロコイド軌跡を描くように移動させることにより、前記被削材を加工すること
を特徴とする加工方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17763011.8A EP3427878A4 (en) | 2016-03-11 | 2017-02-28 | END MILLING MACHINE, CAM DEVICE, DIGITAL CONTROL PROGRAM, AND MACHINING METHOD |
JP2018504395A JP6566594B2 (ja) | 2016-03-11 | 2017-02-28 | エンドミル加工装置およびcam装置およびncプログラムおよび加工方法 |
US16/083,113 US10549359B2 (en) | 2016-03-11 | 2017-02-28 | End mill machining apparatus, CAM apparatus, NC program, and machining method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016048792 | 2016-03-11 | ||
JP2016-048792 | 2016-03-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017154671A1 true WO2017154671A1 (ja) | 2017-09-14 |
Family
ID=59790620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2017/007811 WO2017154671A1 (ja) | 2016-03-11 | 2017-02-28 | エンドミル加工装置およびcam装置およびncプログラムおよび加工方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10549359B2 (ja) |
EP (1) | EP3427878A4 (ja) |
JP (1) | JP6566594B2 (ja) |
WO (1) | WO2017154671A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2019082317A1 (ja) * | 2017-10-25 | 2020-02-27 | 三菱重工業株式会社 | エンドミル仕様設定方法、加工条件設定方法および加工方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6929626B2 (ja) * | 2016-09-02 | 2021-09-01 | 三菱重工業株式会社 | 耐熱合金の切削加工条件設定方法及び耐熱合金の切削加工方法 |
JP6915782B2 (ja) * | 2018-02-06 | 2021-08-04 | 国立大学法人東海国立大学機構 | 加工装置および切削加工方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003263208A (ja) * | 2002-03-11 | 2003-09-19 | Yoshiaki Kakino | Ncプログラムの作成方法、nc装置及びコンピュータプログラム |
JP2010260120A (ja) * | 2009-04-30 | 2010-11-18 | Nagoya Univ | ボールエンドミル加工システム、ボールエンドミル加工装置、cam装置およびボールエンドミル加工方法 |
JP2013240837A (ja) * | 2012-05-17 | 2013-12-05 | Okuma Corp | 工作機械の加工振動抑制方法及び加工振動抑制装置 |
WO2015001789A1 (ja) * | 2013-07-01 | 2015-01-08 | 国立大学法人名古屋大学 | エンドミル加工装置およびcam装置およびncプログラム |
JP2016155215A (ja) * | 2015-02-26 | 2016-09-01 | ブラザー工業株式会社 | ワーク加工方法、及びワーク加工システム |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3395653B2 (ja) | 1998-06-12 | 2003-04-14 | 三菱マテリアル株式会社 | 不等分割カッタ |
CN100445001C (zh) * | 2003-12-17 | 2008-12-24 | 昭和电工株式会社 | 生产锻模的方法、锻模以及锻造物品 |
JP5929065B2 (ja) * | 2011-09-19 | 2016-06-01 | 株式会社ジェイテクト | Ncデータ補正装置 |
JP5444489B2 (ja) * | 2012-06-13 | 2014-03-19 | ファナック株式会社 | 数値制御装置のシミュレーション装置 |
US20150127139A1 (en) * | 2013-11-07 | 2015-05-07 | The Boeing Company | Real-Time Numerical Control Tool Path Adaptation Using Force Feedback |
-
2017
- 2017-02-28 JP JP2018504395A patent/JP6566594B2/ja active Active
- 2017-02-28 WO PCT/JP2017/007811 patent/WO2017154671A1/ja active Application Filing
- 2017-02-28 EP EP17763011.8A patent/EP3427878A4/en active Pending
- 2017-02-28 US US16/083,113 patent/US10549359B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003263208A (ja) * | 2002-03-11 | 2003-09-19 | Yoshiaki Kakino | Ncプログラムの作成方法、nc装置及びコンピュータプログラム |
JP2010260120A (ja) * | 2009-04-30 | 2010-11-18 | Nagoya Univ | ボールエンドミル加工システム、ボールエンドミル加工装置、cam装置およびボールエンドミル加工方法 |
JP2013240837A (ja) * | 2012-05-17 | 2013-12-05 | Okuma Corp | 工作機械の加工振動抑制方法及び加工振動抑制装置 |
WO2015001789A1 (ja) * | 2013-07-01 | 2015-01-08 | 国立大学法人名古屋大学 | エンドミル加工装置およびcam装置およびncプログラム |
JP2016155215A (ja) * | 2015-02-26 | 2016-09-01 | ブラザー工業株式会社 | ワーク加工方法、及びワーク加工システム |
Non-Patent Citations (1)
Title |
---|
See also references of EP3427878A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2019082317A1 (ja) * | 2017-10-25 | 2020-02-27 | 三菱重工業株式会社 | エンドミル仕様設定方法、加工条件設定方法および加工方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3427878A4 (en) | 2020-03-25 |
US20190091778A1 (en) | 2019-03-28 |
EP3427878A1 (en) | 2019-01-16 |
JP6566594B2 (ja) | 2019-09-04 |
JPWO2017154671A1 (ja) | 2018-11-22 |
US10549359B2 (en) | 2020-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5139591B1 (ja) | 工作機械 | |
JP5908342B2 (ja) | 工作機械の加工振動抑制方法及び加工振動抑制装置 | |
KR960006731B1 (ko) | 밀링식 주행강관 절단기 | |
JP6566594B2 (ja) | エンドミル加工装置およびcam装置およびncプログラムおよび加工方法 | |
US10569348B2 (en) | Groove-forming method, control device for machine tool and tool path generating device | |
JP5963292B2 (ja) | エンドミル加工装置およびcam装置およびncプログラム | |
JP6490060B2 (ja) | アクティブ磁気軸受を有する工具軸 | |
JP7044734B2 (ja) | サーボ制御装置 | |
JP6008294B2 (ja) | 旋削による非円形加工方法 | |
JP6735309B2 (ja) | 工作機械、切削方法、および切削プログラム | |
JP2009082994A (ja) | 加工方法及び加工装置 | |
JP7481370B2 (ja) | ワーク加工方法 | |
JP2015196198A (ja) | 平面加工用の工具振動装置 | |
JP7497968B2 (ja) | 数値制御装置、工作機械システム及び数値制御方法 | |
JP6430217B2 (ja) | プロファイル研削盤 | |
JP7289563B2 (ja) | 加工方法、加工装置および加工プログラム | |
JP5736667B2 (ja) | Ncプログラム作成装置 | |
JP4714348B2 (ja) | 回転工具による加工方法 | |
JP2016159372A (ja) | 球面切削加工方法 | |
Zhang et al. | Equipments and strategies of machining 3D meso-scale parts | |
JP2015006713A (ja) | 歯車加工装置 | |
JP7029026B2 (ja) | 加工プログラムの作成方法、ワーク加工方法及び工作機械の制御装置 | |
JP5615684B2 (ja) | 工作機械におけるびびり振動を抑制するための加工方法 | |
JP2004058183A (ja) | スパイラルツールパスを用いた三次元形状の切削装置、切削方法、プログラムおよび記憶媒体 | |
KR101616770B1 (ko) | 절삭가공기구 및 절삭가공방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2018504395 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2017763011 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2017763011 Country of ref document: EP Effective date: 20181011 |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17763011 Country of ref document: EP Kind code of ref document: A1 |