CN117300689B - Double-station special-shaped section milling machine tool - Google Patents
Double-station special-shaped section milling machine tool Download PDFInfo
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- CN117300689B CN117300689B CN202311618825.5A CN202311618825A CN117300689B CN 117300689 B CN117300689 B CN 117300689B CN 202311618825 A CN202311618825 A CN 202311618825A CN 117300689 B CN117300689 B CN 117300689B
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- 238000003801 milling Methods 0.000 title claims abstract description 29
- 210000000078 claw Anatomy 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000003754 machining Methods 0.000 claims description 18
- 230000002441 reversible effect Effects 0.000 claims description 3
- 239000011265 semifinished product Substances 0.000 abstract description 5
- 238000003672 processing method Methods 0.000 abstract description 4
- 239000000047 product Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 8
- 238000007664 blowing Methods 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Classifications
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/066—Bench vices
-
- 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
- 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
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a special machine tool for milling and processing double-station profiled bars and a processing method thereof, comprising a material supporting frame and a machine tool body, wherein the machine tool body comprises a machine tool body, a main shaft box, a first processing device, a second processing device, a clamping device and a part conveyor, wherein the main shaft box, the first processing device, the second processing device, the clamping device and the part conveyor are arranged on the machine tool body, the second processing device of the first processing device is arranged between the main shaft box and the part conveyor, the clamping device can avoid linear movement on the machine tool body, the clamping device comprises a centering bench clamp, a centering auxiliary claw A and a centering auxiliary claw B are fixed on the centering bench clamp, and the auxiliary claw A and the auxiliary claw B are spliced to form a cavity which is one to one with the profile. The auxiliary claw A and the auxiliary claw B are formed by milling auxiliary claw blanks through a first processing device, then clamp the section bar on the main shaft box, sequentially process the section bar into a semi-finished product through the first processing device, process finished product parts through a second processing device, then put into a part driver and transmit out of a lathe bed, and the method is simple in step, high in processing efficiency and automatic in whole process.
Description
Technical Field
The invention relates to the technical field of machining tools, in particular to a special machine tool for milling and machining double-station profiled bars and a machining method.
Background
Aluminum alloy extrusion is becoming more and more widely used in various industries, and aluminum alloy extrusion can directly obtain parts with required end surface shapes or semi-finished products, such as aluminum profile power supply shells and trunking.
The semi-finished products often need to be processed by drilling, milling, tapping, etc. to different degrees on the stage surface or the outer contour surface, and the situation that finished parts cannot be obtained by one extrusion is widely occurred in industries with high precision requirements such as aerospace industry, transportation industry, electronic industry, etc. The semi-finished products are usually sawed into required lengths by a sawing machine, furniture corresponding to the section bar is customized by a processing center, and the cut semi-finished products are put into the processing center for subsequent processing according to certain batches. Such conventional methods are time consuming, labor intensive and inefficient.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the subsequent processing of the extruded profile of the aluminum alloy is time-consuming and labor-consuming, so that the special machine tool and the processing method for milling the double-station profile are provided, the profile material plate formed after the extrusion of the aluminum alloy can be input into the machine tool, and the machine tool can be directly output into finished parts one by one, so that the processing efficiency is improved.
The technical scheme adopted for solving the technical problems is as follows:
the special machine tool for milling and processing the double-station special-shaped material comprises a material supporting frame and a machine tool body, wherein the machine tool body comprises a lathe bed, a main shaft box arranged on the lathe bed, a first processing device, a second processing device, a clamping device and a part conveyor, the clamping device comprises a reversible centering bench clamp, and the central line of the centering bench clamp is in the same straight line with the central line of the main shaft box for clamping the section bar;
the first processing device for preprocessing the initial section bar and the second processing device for further processing the section bar are arranged between the main shaft box and the part conveyor, and can avoid the linear movement of the clamping device on the lathe bed;
the centering bench clamp is characterized in that a centering auxiliary claw and a centering auxiliary claw are fixed on the centering bench clamp, the auxiliary claw A and the auxiliary claw B are spliced to form a cavity which is one-to-one with the profile outline, when the distance between the auxiliary claw A and the auxiliary claw B is reduced, the auxiliary claw A and the auxiliary claw B are used for fixing a workpiece, and when the distance between the auxiliary claw A and the auxiliary claw B is increased, the fixed workpiece falls into a part conveyor to be output into a lathe bed.
Preferably: the spindle box comprises a support, a hollow rotary oil cylinder, a hollow pull rod, a collet chuck and a chuck seat, wherein the bottom end of the support is fixedly connected with the upper end face of the lathe bed, a cylinder is arranged at the top end of the support, the hollow pull rod is positioned in the cylinder, the hollow rotary oil cylinder and the chuck seat are respectively fixed at two ends of the cylinder, threads are arranged at two ends of the hollow pull rod, one end of the hollow pull rod is in threaded connection with an output shaft of the hollow rotary oil cylinder, the other end of the hollow pull rod is in threaded connection with the end of the collet chuck, the collet chuck is positioned in the chuck seat, and the central axes of the hollow rotary oil cylinder, the hollow pull rod and the collet chuck are positioned on the same straight line with the central line of the centering bench clamp;
the collet chuck is provided with a plurality of slots which are uniformly distributed at intervals in the circumferential direction, a matched cylinder which is sleeved on the collet chuck is arranged in the collet chuck seat, a second wedge surface is arranged on the inner wall of the matched cylinder, and when the collet chuck moves towards the hollow rotary cylinder, the slot gap on the clamping end is reduced.
Preferably: the chuck is arranged at the other end of the collet opposite to the hollow pull rod in a protruding mode, a slit on the clamping end extends to the end face of the chuck, a flat cutting table arranged along the axial direction of the chuck is arranged on the side wall of the chuck, and a pressure sensor for transmitting pressure signals to a machine tool control end is arranged on the flat cutting table.
Preferably: the clamping head is provided with a blowing chip removal device, the blowing chip removal device comprises a flange with an air passage, an air inlet hole and a plurality of air outlets, wherein the air inlet hole and the air outlets are communicated with the air passage, the air outlets are equal to the slotted air outlets in number and are arranged in a one-to-one correspondence manner, and the flange is opposite to the hollow pull rod.
Preferably: one of the slots is arranged horizontally, the cutting table is symmetrically arranged on the clamping head, one of the air outlets is arranged obliquely, the inclined air outlet is arranged closest to the horizontal slot, the other air outlets are connected with air pipes made of plastic materials, and the air pipes extend into the slots.
Preferably: the first processing device comprises a first tool magazine and a three-dimensional A shaft, wherein the A shaft is horizontally arranged and is interacted with the first tool magazine.
Preferably: the second processing device comprises a second tool magazine and a three-dimensional B shaft, wherein the B shaft is vertically arranged and is interacted with the second tool magazine.
Preferably: the clamping device further comprises a hydraulic turntable, a turntable tail seat and a bench clamp seat, wherein the bench clamp seat is movably connected between the hydraulic turntable and the turntable tail seat, and the centering bench clamp is fixed on the bench clamp seat.
Preferably: the part conveyor comprises a conveyor belt and a guide chute arranged at the tail part of the conveyor belt, wherein a cover plate is arranged at the head section of the conveyor belt, and a blanking port is formed in the cover plate or an air cylinder is arranged on the cover plate to push the cover plate to be opened.
The beneficial effects of the invention are as follows: the first processing device and the second processing device are adopted to match and process the aluminum alloy extrusion profile, so that the processing performance of the machine tool is effectively enhanced, the machine tool can be suitable for wider part processing, the profile is moved in the whole process of the centering bench clamp from the feeding of the spindle box until a finished part is processed and put into a part conveyor to be output, the manual operation steps in the traditional processing are simplified, the processing is safer, and the processing efficiency is higher.
A processing method using a special machine tool for milling and processing double-station profiled bars,
firstly, placing a section bar on a material supporting frame, and adjusting the height and the position of the material supporting frame so that the material supporting frame can support the tail part of the section bar when the section bar is clamped by a main shaft box;
the method comprises the steps that an auxiliary claw blank is fixed on a centering bench clamp, a first machining device and the centering bench clamp mill a cavity which is one-to-one with the outline of a section bar on the auxiliary claw blank at a specific machining position, the auxiliary claw blank forms an auxiliary claw A and an auxiliary claw B which are centered at the moment, and then the centering bench clamp performs feeding movement to clamp the end part of the section bar on a main shaft box;
after finishing milling the profile by the first processing device, interacting with a first tool magazine, replacing a cutting saw blade to perform cutting-off work, driving the cut semi-finished profile to a second processing position by the centering bench clamp, and starting the second processing device to mill out a finished part;
the centering bench clamp drives the finished part to move to the position of the part conveyor, the centering bench clamp is turned over to place the finished part above the part conveyor, the auxiliary claw A and the auxiliary claw B are loosened, and the finished part falls into the output lathe bed of the part conveyor.
The beneficial effects of the invention are as follows: the auxiliary claw blank on the centering bench clamp is a cavity which is milled by the first processing device and has one-to-one ratio with the profile outline, the profile is clamped more stably, the deformation of the profile caused by the extrusion force applied to the profile by the centering bench clamp is avoided, the processing precision can be effectively improved, the whole machine adopts automatic operation, and the standardization and the efficiency of processing parts are higher.
Drawings
FIG. 1 is an assembly diagram of a dual-station profiled bar milling machine tool;
FIG. 2 is a schematic view of a main housing;
FIG. 3 is a schematic view of the blow-off chip removing device mounted on the collet;
FIG. 4 is a schematic view of a flange 1;
FIG. 5 is a schematic view of a flange 2;
FIG. 6 is a schematic view of a clamping device;
FIG. 7 is a schematic view of a parts conveyor;
in the figure: 1. a bed body; 2. a spindle box; 21. a bracket; 22. a hollow rotary oil cylinder; 23. a hollow pull rod; 24. a collet; 241. a clamping end; 2411. slotting; 2412. a chuck; 24121. a flat cutting table; 25. a clamp seat; 3. a first processing device; 31. a first tool magazine; 32. an A axis; 4. a second processing device; 41. a second tool magazine; 42. a B axis; 5. a clamping device; 51. centering bench clamp; 511. a pair of claws; 512. a secondary claw; 52. a hydraulic turntable; 53. a turntable tailstock; 54. a bench clamp seat; 6. a part conveyor; 61. a conveyor belt; 62. a guide groove; 63. a cover plate; 7. a pressure sensor; 8. a blowing chip removal device; 81. a flange; 811. an air inlet hole; 812. an air outlet; 813. an airway; 82. and an air pipe.
Detailed Description
It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present invention, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present invention.
According to the figure 1, a special machine tool for milling and processing double-station profiled bars comprises a material supporting frame and a machine tool body, wherein the machine tool body comprises a machine tool body 1, a spindle box 2, a first processing device 3, a second processing device 4, a clamping device 5 and a part conveyor 6, the spindle box 2, the first processing device 3, the second processing device 4, the clamping device 5 and the part conveyor 6 are arranged on the machine tool body 1, the clamping device 5 comprises a reversible centering bench clamp 51, the center line of the centering bench clamp 51 is in the same straight line with the center line of the spindle box 2 for clamping the profiled bars, the first processing device 3 for pre-processing the initial profiled bars and the second processing device 4 for further processing the profiled bars are arranged between the spindle box 2 and the part conveyor 6, the clamping device 5 can be prevented from linearly moving on the machine tool body 1, a auxiliary claw 511 and a auxiliary claw 512 which are centered are fixed on the centering are spliced to form a cavity which is one to one with the profile bars, when the distance between the auxiliary claw 511 and the auxiliary claw 512 is reduced, the fixed workpiece is used for fixing the workpiece, and the workpiece is dropped into the part conveyor 6 when the distance between the auxiliary claw 511 and the auxiliary claw 512 is increased.
According to fig. 2, the headstock 2 comprises a support 21, a hollow rotary cylinder 22, a hollow pull rod 23, a collet 24 and a chuck base 25, wherein the bottom end of the support 21 is fixedly connected with the upper end surface of the lathe bed 1, the top end of the support 21 is provided with a cylinder, the hollow pull rod 23 is positioned in the cylinder, the hollow rotary cylinder 22 and the chuck base 25 are respectively fixed at two ends of the cylinder, both ends of the hollow pull rod 23 are provided with threads, one end of the hollow pull rod is in threaded connection with an output shaft of the hollow rotary cylinder 22, the other end of the hollow pull rod is in threaded connection with the end of the collet 24, the collet 24 is positioned in the chuck base 25, the central axes of the hollow rotary cylinder 22, the hollow pull rod 23 and the collet 24 are on the same straight line with the central line of the centering bench clamp 51, the other end of the collet 24 is provided with a clamping end 241 for fixing a section bar, a first wedge surface is arranged on the outer wall of the clamping end 241, simultaneously, a plurality of circumferentially uniformly-spaced open slits 2411 are arranged on the wall of the clamping end 241, a matched cylinder for being sleeved on the collet 24 is arranged in the chuck base 25, a second wedge surface is arranged on the inner wall of the matched cylinder, and when the collet 24 moves towards the hollow cylinder 22, the open slits 2411 on the clamping end are contracted.
As shown in fig. 3 to 5, the other end of the collet 24 opposite to the hollow draw bar 23 is convexly provided with a chuck 2412, a slit 2411 on the clamping end 241 extends to the end face of the chuck 2412, a flat cutting table 24121 arranged along the axial direction of the chuck 2412 is arranged on the side wall of the chuck 2412, and a pressure sensor 7 for transmitting a pressure signal to the control end of the machine tool is mounted on the flat cutting table 24121. The chuck 2412 is provided with a blowing chip removing device 8, the blowing chip removing device 8 comprises a flange 81 with an air passage 813, an air inlet hole 811 and a plurality of air outlets 812 which are communicated with the air passage 813 are formed in the other side of the flange 81 opposite to the hollow pull rod 23, the number of the plurality of air outlets 812 is equal to that of the slots 2411 and are arranged in a one-to-one correspondence mode, one of the plurality of slots 2411 is horizontally arranged, the flat cutting table 24121 is symmetrically arranged on the chuck 2412, one of the plurality of air outlets 812 is obliquely arranged, the inclined air outlet 812 is arranged closest to the horizontal slot 2411, the rest of air outlets 812 are connected with air pipes 82 made of plastic aluminum materials, and the air pipes 82 extend into the slots 2411. In order to prevent scraps from entering the collet 24 from the gaps of the slots 2411, the arrangement of the air blowing chip removing device 8 enables the collet 24 to clamp the outer surface of the profile, in addition, two aluminum air pipes 82 extend into the other two slots 2411, so that the air is ensured to be dispersed before entering the slots 2411 when being blown out, and then the air blowing is completed by matching with the other air outlet 812 which is obliquely arranged, so that the processing requirements of high precision and high requirements are ensured.
Here, the number of the slits 2411 and the number of the air outlets 812 are three, four or five, and three are preferably selected in this application.
According to the illustration 1-7, the clamping device 5 further comprises a hydraulic turntable 52, a turntable tail seat 53 and a bench clamp seat 54, the bench clamp seat 54 is movably connected between the hydraulic turntable 52 and the turntable tail seat 53, the centering bench clamp 51 is fixed on the bench clamp seat 54, the part conveyor 6 comprises a conveyor belt 61 and a guide chute 62 arranged at the tail part of the conveyor belt, a cover plate 63 is arranged at the first section of the conveyor belt 61, and a blanking port or a cylinder pushing cover plate 63 is arranged on the cover plate 63 to be opened. The first machining device 3 comprises a first tool magazine 31 and a three-way a-axis 32, the a-axis 32 is horizontally arranged and is interacted with the first tool magazine 31, and the second machining device 4 comprises a second tool magazine 41 and a three-way B-axis 42, the B-axis 42 is vertically arranged and is interacted with the second tool magazine 41.
It should be noted that, the interaction mode between the a-axis 32 and the first tool magazine 31 and the interaction mode between the B-axis 42 and the second tool magazine 41 all adopt the prior art, and are not described in detail in this application.
The first processing device 3 and the second processing device 4 are adopted to match and process the aluminum alloy extrusion profile, so that the processing performance of a machine tool is effectively enhanced, the processing device can be suitable for wider part processing, and the profile is moved in the whole process from the feeding of the spindle box 2 until a finished part is processed and put into the part conveyor 6 to be output into the lathe bed 1, so that the manual operation step in the traditional processing is simplified, the processing is safer, and the processing efficiency is higher.
A processing method using a special machine tool for milling and processing double-station profiled bars,
firstly, placing a section bar on a material supporting frame, and adjusting the height and the position of the material supporting frame so that the material supporting frame can support the tail part of the section bar when the section bar is clamped by a main shaft box 2;
the auxiliary claw blank is fixed on the centering bench clamp 51, a first machining device 3 and the centering bench clamp 51 mill a cavity which is one-to-one with the profile outline of the auxiliary claw blank at a specific machining position, the auxiliary claw blank forms a centering A auxiliary claw 511 and a centering B auxiliary claw 512 at the moment, and then the centering bench clamp 51 performs feeding movement to clamp the end part of the profile on the spindle box 2;
after finishing milling the profile by the first processing device 3, interacting with the first tool magazine 31, replacing a cutting saw blade to perform cutting-off work, driving the cut semi-finished profile to a second processing position by the centering bench clamp 51, and starting the second processing device 4 to mill out a finished part;
the centering bench clamp 51 drives the finished part to move to the position of the part conveyor 6, the centering bench clamp 51 is turned over to place the finished part above the part conveyor 6, the A auxiliary claw 511 and the B auxiliary claw 512 are loosened, and the finished part falls into the part conveyor 6 to be output to the lathe bed 1.
The auxiliary claw blank on the centering bench clamp 51 is a cavity which is milled by the first processing device 3 and has a ratio to the profile outline of the profile, the profile is clamped more stably, the deformation of the profile caused by the extrusion force applied to the profile by the centering bench clamp 51 is avoided, the processing precision can be effectively improved, the whole machine adopts automatic operation, and the standardization and the efficiency of processing parts are higher.
The spindle box 2, the first processing device 3, the second processing device 4 and the clamping device 5 are driven by a driving device to linearly move, the first processing device 3 and the second processing device 4 can both reciprocate along the X-axis, the Y-axis and the Z-axis directions, the spindle box 2 and the clamping device 5 can both reciprocate along the same direction, the driving device comprises a motor, a screw rod, a sliding block and a guide rail, an output shaft of the motor is fixedly connected with one end of the screw rod coaxially, and the sliding block is in threaded connection with the screw rod and is simultaneously in sliding connection with the guide rail.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. 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 (8)
1. A special machine tool for milling and processing double-station profiled bars is characterized in that: comprises a material supporting frame and a machine tool body, wherein the machine tool body comprises a machine tool body (1), a main shaft box (2), a first processing device (3), a second processing device (4), a clamping device (5) and a part conveyor (6), wherein the main shaft box (2), the first processing device, the second processing device (4), the clamping device (5) and the part conveyor (6) are arranged on the machine tool body, the clamping device (5) comprises a reversible centering bench clamp (51), the central line of the centering bench clamp (51) and the central line of the main shaft box (2) for clamping a section bar are positioned on the same straight line,
the first machining device (3) for the initial profile pre-machining and the second machining device (4) for the further profile machining are arranged between the main spindle box (2) and the part conveyor (6) and can avoid the linear movement of the clamping device (5) on the lathe bed (1);
the centering bench clamp (51) is fixedly provided with a centering A auxiliary claw (511) and a centering B auxiliary claw (512), the A auxiliary claw (511) and the B auxiliary claw (512) are spliced to form a cavity with one-to-one profile outline, when the distance between the A auxiliary claw (511) and the B auxiliary claw (512) is reduced, the clamping device is used for fixing a workpiece, and when the distance between the A auxiliary claw (511) and the B auxiliary claw (512) is increased, the fixed workpiece falls into a part conveyor (6) to be output into a lathe bed (1);
the spindle box (2) comprises a support (21), a hollow rotary oil cylinder (22), a hollow pull rod (23), a collet chuck (24) and a collet chuck seat (25), wherein the bottom end of the support (21) is fixedly connected with the upper end face of the lathe bed (1), a cylinder is arranged at the top end of the support (21), the hollow pull rod (23) is positioned in the cylinder, the hollow rotary oil cylinder (22) and the collet chuck seat (25) are respectively fixed at two ends of the cylinder, both ends of the hollow pull rod (23) are provided with threads, one end of the hollow pull rod is in threaded connection with an output shaft of the hollow rotary oil cylinder (22), the other end of the hollow pull rod is in threaded connection with the end of the collet chuck (24), the collet chuck (24) is positioned in the collet chuck seat (25), and the central axes of the hollow rotary oil cylinder (22), the hollow pull rod (23) and the collet chuck (24) are positioned on the same straight line with the central line of the centering bench clamp (51);
the other end of the collet (24) opposite to the hollow pull rod (23) is provided with a clamping end (241) for fixing a profile, the outer wall of the clamping end (241) is provided with a first wedge surface, meanwhile, the cylinder wall of the clamping end (241) is provided with a plurality of slots (2411) which are uniformly distributed at intervals in the circumferential direction, the collet seat (25) is internally provided with a matched cylinder which is sleeved on the collet (24), the inner wall of the matched cylinder is provided with a second wedge surface, and when the collet (24) moves towards the hollow rotary cylinder (22), the gap of the slots (2411) on the clamping end (241) is reduced;
the collet chuck (24) is provided with a clamp head (2412) in a protruding mode relative to the other end of the hollow pull rod (23), a slit (2411) in the clamping end (241) extends to the end face of the clamp head (2412), a flat cutting table (24121) arranged along the axial direction of the clamp head (2412) is arranged on the side wall of the clamp head (2412), and a pressure sensor (7) for transmitting pressure signals to a machine tool control end is arranged on the flat cutting table (24121).
2. The double-station special-shaped section milling machine tool according to claim 1, wherein the double-station special-shaped section milling machine tool is characterized in that: install on chuck (2412) and blow chip removal device (8), blow chip removal device (8) including flange (81) that have air flue (813), inlet port (811) and a plurality of gas outlet (812) that all switch on with air flue (813) are seted up to the opposite side of flange (81) relative hollow pull rod (23), a plurality of gas outlet (812) quantity equals with the quantity of slotting (2411) to the one-to-one sets up.
3. The double-station special-shaped section milling machine tool according to claim 2, wherein the double-station special-shaped section milling machine tool is characterized in that: one of the slots (2411) is arranged horizontally, the flat cutting table (24121) is symmetrically arranged on the clamping head (2412), one of the air outlets (812) is arranged obliquely, the inclined air outlet (812) is arranged closest to the horizontal slot (2411), the rest air outlets (812) are connected with air pipes (82) made of plastic materials, and the air pipes (82) extend into the slots (2411).
4. The double-station special-shaped section milling machine tool according to claim 1, wherein the double-station special-shaped section milling machine tool is characterized in that: the first machining device (3) comprises a first tool magazine (31) and a three-way A shaft (32), wherein the A shaft (32) is horizontally arranged and is interacted with the first tool magazine (31).
5. The double-station special-shaped section milling machine tool according to claim 1, wherein the double-station special-shaped section milling machine tool is characterized in that: the second machining device (4) comprises a second tool magazine (41) and a three-way B shaft (42), and the B shaft (42) is vertically arranged and is interacted with the second tool magazine (41).
6. The double-station special-shaped section milling machine tool according to claim 1, wherein the double-station special-shaped section milling machine tool is characterized in that: the clamping device (5) further comprises a hydraulic turntable (52), a turntable tail seat (53) and a bench clamp seat (54), the bench clamp seat (54) is movably connected between the hydraulic turntable (52) and the turntable tail seat (53), and the centering bench clamp (51) is fixed on the bench clamp seat (54).
7. The double-station special-shaped section milling machine tool according to claim 1, wherein the double-station special-shaped section milling machine tool is characterized in that: the part conveyor (6) comprises a conveyor belt (61) and a guide chute (62) arranged at the tail part of the conveyor belt, a cover plate (63) is arranged at the head section of the conveyor belt (61), and a blanking port is formed in the cover plate (63) or a cylinder is arranged on the cover plate (63) to push the cover plate (63) to be opened.
8. A machining method using the double-station special-shaped section milling machine tool according to claim 1, characterized in that:
firstly, placing a section bar on a material supporting frame, and adjusting the height and the position of the material supporting frame so that the material supporting frame can support the tail part of the section bar when the section bar is clamped by a main shaft box (2);
the auxiliary claw blank is fixed on the centering bench clamp (51), a first machining device (3) and the centering bench clamp (51) mill a cavity which is one to one with the profile outline of the auxiliary claw blank at a specific machining position, at the moment, the auxiliary claw blank forms a centering A auxiliary claw (511) and a centering B auxiliary claw (512), and then the centering bench clamp (51) performs feeding movement to clamp the end part of the profile on the main shaft box (2);
after milling the profile by the first processing device (3), interacting with a first tool magazine (31), replacing a cutting saw blade to perform cutting work, driving the cut semi-finished profile to a second processing position by a centering bench clamp (51), and starting the second processing device (4) to mill a finished part;
the centering bench clamp (51) drives the finished part to move to the position of the part conveyor (6), the centering bench clamp (51) is turned over to place the finished part above the part conveyor (6), the auxiliary claw A (511) and the auxiliary claw B (512) are loosened, and the finished part falls into the part conveyor (6) to be output to the lathe bed (1).
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