CN109128312B - Engraving and milling machine, tool magazine and machining method of engraving and milling tool clamping device - Google Patents
Engraving and milling machine, tool magazine and machining method of engraving and milling tool clamping device Download PDFInfo
- Publication number
- CN109128312B CN109128312B CN201810980829.0A CN201810980829A CN109128312B CN 109128312 B CN109128312 B CN 109128312B CN 201810980829 A CN201810980829 A CN 201810980829A CN 109128312 B CN109128312 B CN 109128312B
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- clamping
- main
- auxiliary
- chuck
- jaws
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- 238000003801 milling Methods 0.000 title claims abstract description 58
- 238000003754 machining Methods 0.000 title claims abstract description 34
- 210000001847 Jaw Anatomy 0.000 claims abstract description 124
- 210000000078 Claw Anatomy 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 14
- 230000000875 corresponding Effects 0.000 claims description 8
- 239000011265 semifinished product Substances 0.000 abstract description 4
- 238000003672 processing method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004301 light adaptation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000009376 nuclear reprocessing Methods 0.000 description 1
- 230000000576 supplementary Effects 0.000 description 1
Classifications
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- 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
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/15526—Storage devices; Drive mechanisms therefor
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
Abstract
The invention discloses a processing method of a carving and milling cutter clamping device, which comprises the following steps: processing a plurality of auxiliary jaw semi-finished products; the automatic chuck is arranged on a processing platform of the engraving and milling machine, wherein the automatic chuck comprises a chuck seat and a plurality of main jaws which are arranged on the chuck seat and can move towards a central shaft in a reciprocating manner, and the main jaws are arranged along the same circumference; respectively installing auxiliary claws the number of which corresponds to the number of the main claws on each main claw; the main clamping claw is in a closed state of closing towards the central shaft; and aligning a main shaft of the engraving and milling machine with the central shaft, and processing clamping cambered surfaces on the auxiliary clamping jaws according to the shape and the size of the clamped section of the cutter. When the clamping arc surface is machined, the clamping end of the auxiliary clamping jaw which is installed and is in a closed state is directly milled, the machining error of independently machining the clamping arc surface is reduced, the assembly error of the auxiliary clamping jaw does not need to be considered, and the coaxiality between the clamping arc surface of the auxiliary clamping jaw and the main shaft is improved.
Description
Technical Field
The invention relates to the field of machining equipment, in particular to a carving and milling machine, a tool magazine and a machining method of a carving and milling tool clamping device.
Background
The tool magazine is an auxiliary device for providing the required tools for the engraving and milling machine in the automatic processing process. The tool magazine can store a plurality of tools and can be matched with the spindle to complete tool changing so as to meet the processing requirements of different processing procedures such as different milling, drilling and the like.
The existing tool magazine is installed on a working platform of a carving and milling machine or on one side of the working platform, the automatic clamping chuck comprises an automatic clamping chuck for clamping a tool, an auxiliary clamping jaw for clamping the tool is arranged on a main clamping jaw of the automatic clamping chuck, the auxiliary clamping jaw is generally processed singly and then assembled on the main clamping jaw, but in the processing process of the auxiliary clamping jaw, a certain processing error exists in a clamping arc surface of the auxiliary clamping jaw and a certain assembling error exists between the auxiliary clamping jaw and the main clamping jaw, a certain angle deviation exists between the clamping center of the auxiliary clamping jaw after installation and the center of a main shaft of the carving and milling machine, the tool easily collides with the main shaft in a tool changing process, and the processing precision of the carving.
Disclosure of Invention
The invention mainly aims to provide a machining method of a carving and milling cutter clamping device, and aims to solve the problems that in the prior art, a certain angle deviation exists between a clamping center of an auxiliary clamping jaw and the center of a main shaft of a carving and milling machine, a cutter is easy to collide with the main shaft in a cutter changing process, and the machining precision of the carving and milling machine is influenced.
In order to solve the technical problem, the invention provides a tool magazine processing method, which comprises the following steps: processing a plurality of auxiliary jaw semi-finished products; installing an automatic chuck on a processing platform of a carving and milling machine, wherein the automatic chuck comprises a chuck seat and a plurality of main jaws which are arranged on the chuck seat and can move towards a central shaft in a reciprocating mode, and the main jaws are arranged along the same circumference; respectively installing auxiliary clamping jaws corresponding to the number of the main clamping jaws on each main clamping jaw; bringing the main jaws into a closed state of being drawn toward the central axis; and aligning a main shaft of the engraving and milling machine with the central shaft, and processing clamping arc surfaces on the auxiliary clamping jaws according to the shape and the size of the clamped section of the cutter.
Preferably, the step of processing a plurality of auxiliary jaw semi-finished products comprises: machining a blank of the auxiliary clamping jaw; machining a groove matched with the main clamping claw at the bottom of the blank; processing a butting surface for contacting with other auxiliary clamping jaws at the clamping end of the blank; and processing a fixing through hole used for being connected with the main clamping jaw at the top of the blank.
Preferably, the step of mounting the automatic chuck on the machining platform of the engraving and milling machine comprises: arranging a mounting seat on a working platform of the engraving and milling machine; and fixing a plurality of automatic chucks on the mounting seat.
Preferably, the step of aligning the main shaft of the engraving and milling machine with the central shaft and machining the clamping cambered surfaces on the auxiliary jaws according to the shape and the size of the clamped section of the tool comprises the following steps: after the first clamping arc surface of one of the automatic chucks is machined, acquiring a first central shaft coordinate of the first clamping arc surface; the main shaft moves to the position above the other automatic chuck to be aligned with the center of the other automatic chuck, and the main shaft downwards processes a second clamping cambered surface to obtain a second central shaft coordinate of the second clamping cambered surface; and repeating the previous step until all the auxiliary clamping jaws are machined.
The invention also provides a tool magazine, which comprises an automatic chuck arranged on a working platform of the engraving and milling machine and an auxiliary clamping jaw arranged on the automatic chuck; the automatic chuck comprises a chuck seat and a plurality of main jaws which are arranged on the chuck seat and can reciprocate towards a central shaft, and the main jaws are arranged along the same circumference; the auxiliary clamping jaw is arranged on the main clamping jaw, and a clamping arc surface is arranged at one end, close to the central shaft, of the auxiliary clamping jaw.
Preferably, the tool magazine further comprises a mounting seat for connecting the working platform and the automatic chuck, and a first mounting hole fixed to the chuck seat and a second mounting hole fixed to the working platform are formed in the mounting seat.
Preferably, the tool comprises a spindle clamping section, a tool magazine clamping section and a tool edge section which are coaxially arranged and sequentially connected, wherein the diameter of the tool magazine clamping section is larger than that of the tool edge section; and a containing groove for containing the blade section is arranged below the clamping arc surface.
Preferably, the automatic chuck is a two-jaw air chuck, a three-jaw air chuck or a four-jaw air chuck.
The invention further provides a carving and milling machine which comprises the tool magazine.
The invention firstly processes the appearance of the main body of the clamping jaw, and the processing of the clamping cambered surface of the clamping jaw is taken as the final processing procedure. When the clamping arc surface is machined, the clamping jaws are directly installed on the main clamping jaw of the automatic chuck and keep mutually abutting states, then the clamping ends of the auxiliary clamping jaws are milled, the machining error of independently machining the clamping arc surface is reduced, the assembly error of the auxiliary clamping jaws does not need to be considered, and the coaxiality between the clamping arc surface of the auxiliary clamping jaws and the main shaft is improved.
Drawings
FIG. 1 is a flow chart illustrating a method of machining an engraving and milling tool holding device according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method of machining the fixture of the milling tool in another embodiment of the present invention;
FIG. 3 is a flow chart of a method of machining the fixture of the milling tool in accordance with yet another embodiment of the present invention;
FIG. 4 is a flow chart of a method of machining the fixture of the milling tool in a further embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a tool magazine according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of the auxiliary jaw in the embodiment of FIG. 5;
FIG. 7 is a schematic view of the structure of the cutter in the embodiment of FIG. 5;
fig. 8 is a schematic structural diagram of an engraving and milling machine according to another embodiment of the present invention.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
In order to solve the technical problem, the invention provides a machining method of a fixture for a milling cutter according to fig. 1, and the machining method of the fixture for the milling cutter according to fig. 1 comprises the following steps:
step S10, processing a plurality of auxiliary jaw semi-finished products; in this embodiment, the auxiliary jaw includes a connecting end connected with the main jaw and a clamping end for clamping the tool. The link is provided with and is used for spacing slot and the mounting hole of connecting main jack catch with main jack catch connection, and the exposed core is including being used for holding the holding tank that holds the cutter on the holding surface and setting with other supplementary jack catches contact.
Step S20, mounting an automatic chuck on a processing platform of the engraving and milling machine, wherein the automatic chuck comprises a chuck seat and a plurality of main jaws which are arranged on the chuck seat and can move towards a central shaft in a reciprocating manner, and the main jaws are arranged along the same circumference; in this embodiment, the automatic chuck is preferably a pneumatic three-jaw chuck, a chuck base of the pneumatic three-jaw chuck is provided with a screw hole, and the chuck base is fixedly connected with a working platform of the engraving and milling machine through a screw, so that a central axis of the automatic chuck is parallel to a Z axis.
Step S30, respectively installing auxiliary jaws corresponding to the number of the main jaws on each main jaw; the bottom of the auxiliary clamping jaw is provided with a limiting groove, a through hole for mounting and fixing and a butting surface for butting against each other. The groove at the bottom of the auxiliary clamping jaw is sleeved on the main clamping jaw, and the abutting surface is arranged towards the central shaft of the chuck seat. And aligning the mounting hole with the positioning screw hole of the main clamping jaw and fixedly connecting the auxiliary clamping jaw with the main clamping jaw through a screw.
Step S40 is to put the main claws in a closed state of being drawn toward the center axis; in this embodiment, the automatic chuck is preferably a pneumatic three-jaw chuck, and the pneumatic three-jaw chuck is ventilated to drive each main jaw to move towards the central axis, so that each abutting surface of the auxiliary jaw and the abutting surface of the adjacent auxiliary jaw abut against each other, and the automatic chuck is in a closed state.
And step S50, aligning the main shaft of the engraving and milling machine with the central shaft, and processing clamping cambered surfaces on the auxiliary jaws according to the shape and the size of the clamped section of the cutter. In this embodiment, the tool comprises a spindle clamping section, a tool magazine clamping section and a tool edge section which are coaxially arranged and sequentially connected, wherein the diameter of the tool magazine clamping section is larger than that of the tool edge section, and the diameter of the tool magazine clamping section is preferably 11mm +/-0.1 mm. The pneumatic three-jaw chuck is ventilated, and three jaws on the pneumatic three-jaw chuck are in a mutual abutting state. After the carving and milling machine is provided with the cutter, the cutter is aligned with the central shaft of the automatic chuck, and a certain tolerance can be allowed after the central shaft of the main shaft is aligned with the central shaft of the automatic chuck, wherein the distance between the central shaft of the main shaft and the central shaft of the automatic chuck is kept within 0.5 mm. The engraving and milling machine processes the clamping ends of the three auxiliary clamping jaws according to a set program, the clamping arc surfaces of the clamping sections of the clamping tool magazine are machined to be coaxial, and the radius of each clamping arc surface is preferably 5mm +/-0.1 mm. And (3) reprocessing a hole-shaped cavity for taking and placing the cutting edge section, wherein the hole-shaped cavity is coaxial with the clamping cambered surface, and the radius of the hole-shaped cavity is smaller than that of the clamping cambered surface so as to form a step for bearing the end surface of the clamping section of the tool magazine. And after the machining is finished, combining the horizontal coordinate of the arc center of the clamping cambered surface and the coordinate of the vertical height of the step into a reference coordinate point of the cutter during cutter changing.
The invention firstly processes the appearance of the main body of the clamping jaw, and the processing of the clamping cambered surface of the clamping jaw is taken as the final processing procedure. When the clamping arc surface is machined, the clamping jaws are directly installed on the main clamping jaw of the automatic chuck and keep mutually abutting states, then the clamping ends of the auxiliary clamping jaws are milled, the machining error of independently machining the clamping arc surface is reduced, the assembly error of the auxiliary clamping jaws does not need to be considered, and the coaxiality between the clamping arc surface of the auxiliary clamping jaws and the main shaft is improved.
Referring to fig. 2, in a preferred embodiment of the present invention, step S10 further includes:
step S11, processing a blank of the auxiliary jaw; in the embodiment, the interface of the blank of the auxiliary jaw is of a T-shaped structure and can be obtained by milling. The wider end of the clamp serves as a connecting end fixed with the main clamping jaw.
Step S12, machining a groove matched with the main clamping claw at the bottom of the blank; in this embodiment, the bottom that the link is perpendicular to the face of holding processes out the slot that the width equals with the width of main jack catch, and this slot lies in the intermediate position of bottom one end opening and sets up the other end and seal the setting, be used for with the top and the side adaptation of main jack catch, restriction auxiliary jack catch along the direction of perpendicular to centre gripping direction removal.
Step S13, processing a butting surface for contacting with other auxiliary claws at the clamping end of the blank; in this embodiment, one of the two cross-sectional ends of the auxiliary clamping jaw is selected as the clamping end, and since the automatic chuck preferably has a three-jaw structure, the cross-sectional end is milled to form two symmetrical abutting surfaces, and the included angle between the two abutting surfaces is 120 °. It should be noted that the automatic chuck may also be selected from two-jaw and four-jaw configurations, and the clamping surfaces and the included angles thereof may be obtained in the same manner and will not be described herein. And processing an accommodating groove for accommodating the cutter at the abutting end.
Step S14, processing a fixing through hole used for being connected with the main claw on the top of the blank; in this embodiment, a fixing through hole corresponding to the fixing screw hole in the main jaw is milled or drilled down from the top of the blank, and a counter bore for receiving the head of the screw is milled in the fixing through hole. The auxiliary clamping jaw is convenient to mount and fix by processing the limiting groove, the fixing through hole and the abutting surface on the blank of the auxiliary clamping jaw.
Referring to fig. 3, in a preferred embodiment of the present invention, step S20 further includes:
step S21, arranging a mounting seat on a working platform of the engraving and milling machine; the mounting seat comprises a connecting plate and a mounting plate, wherein the connecting plate is connected with a working platform of the engraving and milling machine, the mounting plate is perpendicular to the mounting plate, a through hole fixed with the working platform is formed in the connecting plate, and a through hole for fixing the chuck seat is formed in the mounting plate. The connecting plate is fixedly connected with the side face of the working platform through screws, and the mounting plate and the working platform are ensured to be arranged in parallel.
And step S22, fixing a plurality of automatic chucks on the mounting base. The through-holes of the fixed chuck seat on the fixed plate are arranged along the X-axis or Y-axis direction in an array mode, the automatic chucks are placed on the mounting plate, the mounting screw holes of the chuck seat correspond to the through-holes in the mounting plate, the chuck seat is fixed on the mounting plate through screws, and the automatic chucks are arranged along the X-axis or Y-axis. The automatic clamping disc can be used for mounting a plurality of cutters to meet different processing requirements of the engraving and milling machine by arranging the automatic clamping discs.
Referring to fig. 4, in a preferred embodiment of the present invention, step S50 is followed by:
step S60, after the first clamping arc surface of one of the automatic chucks is machined, obtaining a first central shaft coordinate of the first clamping arc surface; in this embodiment, when the spindle is aligned with the center of the first robot chuck, the coordinate value of the central axis of the spindle at the horizontal position is the first central axis coordinate.
Step S61, the main shaft moves to the position above the other automatic chuck to align with the center of the other automatic chuck, the main shaft downwards processes a second clamping arc surface, and a second central shaft coordinate of the second clamping arc surface is obtained; in this embodiment, when the spindle is aligned with the center of the second automatic chuck in this embodiment, the central axis of the spindle is a second central axis coordinate which is a coordinate value of the horizontal position.
And step S62, repeating the previous step until all the auxiliary claws are processed. In this embodiment, the above steps are repeated until the clamping arc surfaces of all the automatic chucks are processed, and the coordinates of the central axes of the other automatic chucks are obtained. In the embodiment, a plurality of automatic chucks are arranged, so that a plurality of cutters can be mounted to correspond to different processing requirements of the engraving and milling machine.
The invention also provides a tool magazine, which comprises an automatic chuck 10 arranged on a working platform of the engraving and milling machine and an auxiliary claw 13 arranged on the automatic chuck 10, and is shown in figures 5 to 7; the automatic chuck 10 comprises a chuck base 11 and a plurality of main jaws 12 which are arranged on the chuck base 11 and can reciprocate towards a central axis, wherein the main jaws 12 are arranged along the same circumference; the auxiliary clamping jaw 13 is arranged on the main clamping jaw 12, and one end, close to the central shaft, of the auxiliary clamping jaw 13 is provided with a clamping arc surface 13 e. In the present embodiment, the automatic chuck 10 is preferably a pneumatic three-jaw chuck, and the chuck base 11 of the pneumatic three-jaw chuck is fixedly connected with the working platform of the engraving and milling machine through screws, so that the central axis of the automatic chuck 10 is parallel to the Z axis. Three main clamping jaws 12 which are centrosymmetric are arranged on the chuck base 11, and screw holes are arranged on the main clamping jaws 12. The bottom of the auxiliary clamping jaw 13 is provided with a groove 13b, the groove 13b is sleeved on the upper end of the main clamping jaw 12, the auxiliary clamping jaw 13 is also provided with a through hole 13c, and the through hole 13c is arranged corresponding to a screw hole on the main clamping jaw 12 and used for fixing the auxiliary clamping jaw 13 on the main clamping jaw 12. The holding ends of the auxiliary claws 13 are provided with abutting surfaces 13a, the abutting surfaces 13a are arranged toward the central axis of the chuck base 11, and when the automatic chuck 10 is closed, the abutting surfaces 13a of the adjacent auxiliary claws 13 are in contact and abut against each other. The abutting surface 13a is also provided with clamping cambered surfaces 13e for clamping the cutter, and the cutting radius of each clamping cambered surface 13e is coaxially smaller than the radius of the cutter and the clamping section of the cutter. The auxiliary jaw 13 is also provided with a receiving space 13f for receiving the tool edge section 14c, and the receiving space 13f is combined into a circular hole coaxial with the clamping arc surface 13e when the auxiliary jaw 13 is closed. According to the invention, the clamping arc surface 13e is directly obtained by milling on the automatic chuck 10, so that the machining error of independently machining the clamping arc surface 13e is reduced, the assembly error of the auxiliary clamping jaw 13 does not need to be considered, and the coaxiality between the clamping arc surface 13e of the auxiliary clamping jaw 13 and the main shaft is improved.
In another embodiment of the present invention, referring to fig. 5, the tool magazine further includes a mounting base 20 for connecting the work platform and the automatic chuck 10, and the mounting base 20 is provided with a first mounting hole 23 fixed to the chuck base 11 and a second mounting hole 24 fixed to the work platform. In this embodiment, the automatic chuck 10 is mounted on a working platform of the engraving and milling machine via a mounting base 20. The mounting seat 20 comprises a connecting plate 21 which is perpendicular to a working platform of the engraving and milling machine and a mounting plate 22 which is perpendicular to the mounting plate 22, a second mounting hole 24 which is fixed with the working platform is formed in the connecting plate 21, and a first mounting hole 23 which is used for fixing the chuck seat 11 is formed in the mounting plate 22. The connecting plate 21 is fixedly connected with the side surface of the working platform through screws, and the mounting plate 22 is ensured to be arranged in parallel with the working platform. The first mounting holes 23 of the mounting plate 22 for fixing the chuck holders 11 are arranged in an array along the X-axis or Y-axis direction, and a plurality of automatic chucks 10 may be arranged along the X-axis or Y-axis and fixed to the mounting plate 22. The present invention, by providing a plurality of automatic chucks 10, can be used to mount a plurality of tools to meet different processing requirements of the router.
In another embodiment of the invention, referring to fig. 6, the tool comprises a spindle clamping section 14a, a tool magazine clamping section 14b and a tool edge section 14c which are coaxially arranged and sequentially connected, wherein the diameter of the tool magazine clamping section 14b is larger than that of the tool edge section 14 c; a containing groove 13f for containing the blade section 14c is provided below the clamping arc surface 13 e. In the present embodiment, the overall dimensions of the tool are the same, the diameter of the magazine clamping section 14b is larger than the diameter of the blade section 14c, and the diameter of the blade section 14c is larger than the diameter of the spindle clamping section 14 a. The accommodating groove 13f provided on the auxiliary jaw 13 and accommodating the tool cutting edge section 14c forms a hole cavity when the auxiliary jaw 13 is closed, and the radius of the hole cavity is larger than that of the tool cutting edge section 14c and smaller than that of the clamping cambered surface 13e, so that a step for accommodating the tool magazine clamping section 14b is formed at the clamping cambered surface 13 e. The invention is convenient for positioning and clamping the cutter by arranging the step for receiving the clamping section 14b of the tool magazine.
In another embodiment of the present invention, referring to fig. 5, the automatic chuck 10 is a two-jaw air chuck, a three-jaw air chuck, or a four-jaw air chuck. In the embodiment, the automatic chuck 10 is preferably a three-jaw air chuck, and may also be a two-jaw air chuck or a four-jaw air chuck, the auxiliary jaws 13 corresponding to the two-jaw air chuck have only one abutting surface 13a for abutting, and the auxiliary jaws 13 corresponding to the four-jaw air chuck have two abutting surfaces 13a for abutting, and the included angle between the two abutting surfaces is 90 °.
The invention further provides a carving and milling machine, and referring to fig. 8, the carving and milling machine comprises the tool magazine. In this embodiment, the engraving and milling machine is preferably a gantry type engraving and milling machine, the main shaft is arranged on the gantry and can move along the X axis and the Z axis, and the working platform is arranged below the gantry and can move along the Z axis. The tool magazine is arranged on the side face of the working platform and is fixedly connected with the working platform through a connecting plate 21. The fixture for holding the milling tool is arranged on a mounting plate 22 and comprises an automatic chuck 10, preferably a pneumatic three-jaw chuck, wherein a chuck base 11 of the pneumatic three-jaw chuck is fixedly connected with a working platform of the milling machine through screws, so that the central axis of the automatic chuck 10 is parallel to the Z axis. Three main clamping jaws 12 which are centrosymmetric are arranged on the chuck base 11, and screw holes are arranged on the main clamping jaws 12. The bottom of the auxiliary clamping jaw 13 is provided with a groove 13b, the groove 13b is sleeved on the upper end of the main clamping jaw 12, the auxiliary clamping jaw 13 is also provided with a through hole 13c, and the through hole 13c is arranged corresponding to a screw hole on the main clamping jaw 12 and used for fixing the auxiliary clamping jaw 13 on the main clamping jaw 12. The holding ends of the auxiliary claws 13 are provided with abutting surfaces 13a, the abutting surfaces 13a are arranged toward the central axis of the chuck base 11, and when the automatic chuck 10 is closed, the abutting surfaces 13a of the adjacent auxiliary claws 13 are in contact and abut against each other. The abutting surface 13a is also provided with clamping cambered surfaces 13e for clamping the cutter, and the cutting radius of each clamping cambered surface 13e is coaxially smaller than the radius of the cutter and the clamping section of the cutter. The auxiliary jaw 13 is also provided with a receiving space 13f for receiving the tool edge section 14c, and the receiving space 13f is combined into a circular hole coaxial with the clamping arc surface 13e when the auxiliary jaw 13 is closed. According to the invention, the clamping arc surface 13e is directly obtained by milling on the automatic chuck 10, so that the machining error of independently machining the clamping arc surface 13e is reduced, the assembly error of the auxiliary clamping jaw 13 does not need to be considered, and the coaxiality between the clamping arc surface 13e of the auxiliary clamping jaw 13 and the main shaft is improved.
The technical problems, technical solutions and advantages of the present invention have been described in detail with reference to the above embodiments, and it should be understood that the above embodiments are merely exemplary and not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A machining method of a carving and milling cutter clamping device is characterized by comprising the following steps:
processing a plurality of semi-finished auxiliary claws;
installing an automatic chuck on a processing platform of a carving and milling machine, wherein the automatic chuck comprises a chuck seat and a plurality of main jaws which are arranged on the chuck seat and can move towards a central shaft in a reciprocating mode, and the main jaws are arranged along the same circumference;
respectively installing the auxiliary clamping jaws corresponding to the number of the main clamping jaws on each main clamping jaw;
bringing the main jaws into a closed state of being drawn toward the central axis;
and aligning a main shaft of the engraving and milling machine with the central shaft, and processing clamping cambered surfaces on the auxiliary clamping jaws according to the shape and the size of a clamped section of the engraving and milling cutter.
2. A method of machining an engraving and milling tool holding device as claimed in claim 1, wherein said step of machining a plurality of semi-finished auxiliary jaws comprises:
machining a blank of the auxiliary clamping jaw;
machining a groove matched with the main clamping claw at the bottom of the blank;
processing a butting surface for contacting with other auxiliary clamping claws at the clamping end of the blank;
and processing a fixing through hole used for being connected with the main clamping jaw at the top of the blank.
3. The method of claim 1, wherein the step of mounting the automated chuck on a processing platform of the router comprises:
arranging a mounting seat on a processing platform of the engraving and milling machine;
and fixing a plurality of automatic chucks on the mounting seat.
4. The method of claim 3, wherein the step of aligning a spindle of the router with the central axis and machining clamping arcs on the plurality of auxiliary jaws according to the shape and size of the clamped section of the router comprises:
after the first clamping arc surface of one of the automatic chucks is machined, acquiring a first central shaft coordinate of the first clamping arc surface;
the main shaft moves to the position above the other automatic chuck to be aligned with the central shaft of the other automatic chuck, and the main shaft downwards processes a second clamping cambered surface to obtain a second central shaft coordinate of the second clamping cambered surface;
and repeating the previous step until all the auxiliary clamping jaws are machined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810980829.0A CN109128312B (en) | 2018-08-27 | 2018-08-27 | Engraving and milling machine, tool magazine and machining method of engraving and milling tool clamping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810980829.0A CN109128312B (en) | 2018-08-27 | 2018-08-27 | Engraving and milling machine, tool magazine and machining method of engraving and milling tool clamping device |
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| CN109128312A CN109128312A (en) | 2019-01-04 |
| CN109128312B true CN109128312B (en) | 2020-09-04 |
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| CN110315102A (en) * | 2019-05-31 | 2019-10-11 | 陕西法士特汽车传动集团有限责任公司 | A kind of floating claw, retarder rotor fixture and its application method |
| CN112570745A (en) * | 2020-12-08 | 2021-03-30 | 吉林大学 | Self-centering four-jaw linkage chuck soft jaw device and machining method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003103427A (en) * | 2001-09-28 | 2003-04-08 | Olympus Optical Co Ltd | Exchanging tool |
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