CN218984007U - Large-scale dysmorphism piece processing equipment - Google Patents

Abstract

The utility model relates to the technical field of machining equipment, in particular to large-scale special-shaped piece machining equipment. The large-scale special-shaped part processing equipment comprises a main workbench, an auxiliary workbench, a milling robot and a control cabinet. The control cabinet can communicate with the milling robot and control the milling robot to mill the large-scale special-shaped pieces on the main workbench and the auxiliary workbench. Through setting up main workstation and vice workstation, clamp the large-scale dysmorphism spare location clamp of part on main workstation and vice workstation respectively, can carry out clamp processing to the large-scale dysmorphism spare part on the main workstation earlier, loosen the large-scale dysmorphism spare of main workstation after, carry out clamp processing to the large-scale dysmorphism spare part on the vice workstation to can guarantee to carry out the location clamp processing to the large-scale dysmorphism spare of at least two processing planes not being in the coplanar. The large-sized special-shaped piece is not required to be frequently disassembled and assembled in the machining process, the working procedure is concentrated, the clamping frequency is reduced, and therefore the machining efficiency of the large-sized special-shaped piece can be improved.

Description

Large-scale dysmorphism piece processing equipment

Technical Field

The utility model relates to the technical field of machining equipment, in particular to large-scale special-shaped piece machining equipment.

Background

The special-shaped piece is mainly a part which is not defined by the country as strict standard specification and is free to control by a manufacturer besides related parameter regulations, and generally the special-shaped piece does not belong to parts defined by the standard part. The upper and lower surfaces of the special-shaped workpiece are not identical or similar in pattern, and are different from standard components and common workpieces such as bars, rings, cakes and the like.

Because of the huge volume of the large-sized special-shaped piece, the large-sized special-shaped piece cannot be processed in the traditional numerical control milling machine, and the traditional solving method is to process the large-sized special-shaped piece through a large-sized planer type milling machine with high manufacturing cost. One existing processing method of large-scale special-shaped pieces is manual cutting, and specifically, drilling, cutting and polishing are carried out on the special-shaped pieces under certain pressure. The method has low production efficiency, low processing precision and easy deformation, and the processing quality is limited by the experience of a master. Another processing method is to process by a six-axis numerical control processing center. The method is difficult to clamp the special-shaped piece, is unfavorable for positioning, and has high price of processing equipment. For processing large-scale special-shaped parts (such as processing an air inlet pipe of a truck engine), the existing market does not provide a corresponding solution capable of realizing batch automation, and the processing problem of the large-scale special-shaped parts cannot be solved.

Thus, a large-sized profile processing apparatus is needed to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide large-sized special-shaped piece processing equipment, which can intensively reduce the clamping times of large-sized special-shaped pieces in a working procedure, meet the requirement of dimensional tolerance and improve the processing efficiency.

To achieve the purpose, the utility model adopts the following scheme:

large-scale dysmorphism piece processing equipment includes:

the main workbench is positioned and clamped on at least part of the large-scale special-shaped piece;

the auxiliary workbench is arranged on the side edge of the main workbench, the distance between the auxiliary workbench and the main workbench is adjustable, and at least part of large-sized special-shaped pieces are positioned and clamped on the auxiliary workbench;

a milling robot configured to mill a large profiled piece, and

the control cabinet is in communication connection with the milling robot.

Illustratively, the large-scale profiled machining apparatus further comprises a connecting and positioning member, the primary table comprises a main frame, the secondary table comprises a secondary frame, and the main frame and the secondary frame are connected by the connecting and positioning member.

The main workbench comprises a first upper profiling pressing plate, a first lower profiling pressing plate and a first back-drawing positioning assembly, wherein the first lower profiling pressing plate is installed on the main frame, the first upper profiling pressing plate is fixedly installed on the main frame, the first upper profiling pressing plate and the first lower profiling pressing plate are installed in a matched mode to form a first machining station, a large-sized irregular part is at least partially placed in the first machining station, one end of the first back-drawing positioning assembly is installed on the first lower profiling pressing plate, the other end of the first back-drawing positioning assembly can be clamped on the first upper profiling pressing plate, and the first back-drawing positioning assembly can shrink and pull the first lower profiling pressing plate to enable the large-sized irregular part to be abutted to the first upper profiling pressing plate to tightly abut against the first upper profiling pressing plate.

The auxiliary workbench comprises a second upper profiling pressing plate, a second lower profiling pressing plate and a second back-drawing positioning assembly, the second lower profiling pressing plate is installed on the auxiliary frame, the second upper profiling pressing plate is fixedly installed on the auxiliary frame, the second upper profiling pressing plate and the second lower profiling pressing plate are installed in a matched mode to form a second machining station, the large-sized special-shaped part is at least partially placed in the second machining station, one end of the second back-drawing positioning assembly is installed on the second lower profiling pressing plate, the other end of the second back-drawing positioning assembly can be clamped on the second upper profiling pressing plate, and the second back-drawing positioning assembly can shrink and pull the second lower profiling pressing plate to enable the large-sized special-shaped part to be abutted to the second upper profiling pressing plate for tightly supporting.

Illustratively, a plurality of main tables and auxiliary tables are provided, the plurality of main tables are arranged on the main frame at intervals, and the plurality of auxiliary tables are respectively and correspondingly provided with the plurality of main tables.

Illustratively, the primary and secondary tables each include a securing assembly configured to fixedly mount the first upper contoured platen or the second upper contoured platen to the main frame or the secondary frame, respectively.

The fixing assembly comprises a first supporting leg, a second supporting leg and a supporting plate, wherein the first supporting leg and the second supporting leg are vertically arranged on the main frame or the auxiliary frame, one end of the supporting plate is fixedly connected with the first upper profiling pressing plate or the second upper profiling pressing plate, and the other end of the supporting plate is fixedly connected with the first supporting leg and the second supporting leg.

Illustratively, the support plate is provided with an opening for clamping the first or second back-suction positioning assembly.

The first back-drawing positioning assembly and the second back-drawing positioning assembly comprise a locking base, a locking shaft, a back-drawing nut, a back-drawing screw and a locking screw, wherein the locking base is arranged on the first lower profiling pressing plate or the second lower profiling pressing plate, one end of the back-drawing nut is rotationally connected with the locking base through the locking shaft, the back-drawing screw is rotationally connected with the end face of the other end of the back-drawing nut, the back-drawing screw can be screwed into the back-drawing nut, the nut of the back-drawing screw can be clamped in the opening, and the locking screw is used for fixing the relative position of the back-drawing screw and the supporting plate.

Illustratively, the first upper contoured platen, the first lower contoured platen, the second upper contoured platen, and the second lower contoured platen are each provided with a pull handle.

Illustratively, the milling robot includes a six-axis robotic arm mounted on the main frame and an electric spindle slot mounted at an end of the six-axis robotic arm.

The beneficial effects of the utility model are as follows:

according to the large-sized special-shaped part processing equipment provided by the utility model, the main workbench and the auxiliary workbench are arranged to respectively clamp part of the large-sized special-shaped part on the main workbench and the auxiliary workbench in a positioning manner, so that the large-sized special-shaped part on the main workbench can be clamped firstly, and after the large-sized special-shaped part on the main workbench is loosened, the large-sized special-shaped part on the auxiliary workbench is clamped, so that the positioning and clamping processing of the large-sized special-shaped part with at least two processing planes which are not in the same plane can be ensured. The large-sized special-shaped piece is not required to be frequently disassembled and assembled in the machining process, the working procedure is concentrated, the clamping frequency is reduced, and therefore the machining efficiency of the large-sized special-shaped piece can be improved.

Drawings

FIG. 1 is a schematic diagram of a large-scale profiled-element processing apparatus provided by the utility model;

FIG. 2 is a schematic view of a part of a large-sized profile processing apparatus according to the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of a part of the large-scale special-shaped part processing equipment provided by the utility model;

fig. 5 is a schematic structural view of the milling robot provided by the utility model.

In the figure:

200. a main workbench; 210. a main frame; 220. a first upper profiling platen; 230. a first lower profiling platen; 240. the first back-pumping positioning assembly; 241. locking the base; 242. locking the shaft; 243. back-drawing the nut; 244. drawing the screw reversely; 245. locking a screw; 250. a fixing assembly; 251. a first support leg; 252. a second support leg; 253. a support plate; 254. an opening; 300. an auxiliary workbench; 310. an auxiliary frame; 320. a second upper profiling platen; 330. a second lower profiling platen; 340. the second back-pumping positioning assembly; 400. a milling robot; 410. a six-axis mechanical arm; 420. milling grooves of the electric spindle; 500. a control cabinet; 600. large-sized special-shaped pieces; 700. and connecting the positioning piece.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present utility model are shown.

In the present utility model, directional terms, such as "upper", "lower", "left", "right", "inner" and "outer", are used for convenience of understanding and are not to be construed as limiting the scope of the present utility model unless otherwise specified.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In order to reduce the clamping times of large-sized special-shaped pieces in a concentrated manner, meet the requirement of dimensional tolerance and improve the machining efficiency, as shown in fig. 1 and 2, the embodiment provides large-sized special-shaped piece machining equipment. The large form 600 is illustrated as a truck engine air intake, and the large form apparatus of the present embodiment will be described by way of example. The large-sized profile machining apparatus in this embodiment includes a main table 200, a sub-table 300, a milling robot 400, and a control cabinet 500. At least a portion of the large form 600 is positioned and clamped to the main table 200. The auxiliary workbench 300 is arranged on the side of the main workbench 200, the distance between the auxiliary workbench 300 and the main workbench 200 is adjustable, and at least part of the large-sized special-shaped piece 600 is positioned and clamped on the auxiliary workbench 300. The milling robot 400 is used for milling a large profile 600. The control cabinet 500 is communicatively connected to the milling robot 400. The control cabinet 500 can communicate with the milling robot 400 and control the milling robot 400 to mill the large-sized profile 600 on the main table 200 and the sub-table 300. Through setting up main workstation 200 and vice workstation 300, fix a position clamp with the large-scale dysmorphism piece 600 of part respectively on main workstation 200 and vice workstation 300, can press from both sides tight processing to the large-scale dysmorphism piece 600 part on the main workstation 200 earlier, after unclamping the large-scale dysmorphism piece 600 of main workstation 200, press from both sides tight processing to the large-scale dysmorphism piece 600 part on vice workstation 300 to can guarantee to carry out the location clamp processing to the large-scale dysmorphism piece 600 that at least two processing planes are not in the coplanar. The large-sized special-shaped piece 600 does not need to be frequently disassembled and assembled in the machining process, the working procedure is concentrated, the clamping frequency is reduced, and therefore the machining efficiency of the large-sized special-shaped piece 600 can be improved.

Further, the large-sized profile processing apparatus in the present embodiment further includes a connection positioning member 700, the main table 200 includes the main frame 210, the sub-table 300 includes the sub-frame 310, and the main frame 210 and the sub-frame 310 are connected by the connection positioning member. By providing the connection positioning member 700, the main frame 210 and the sub-frame 310 are fixedly connected, so that the connection stability between the main table 200 and the sub-table 300 can be ensured, and the large-sized profile 600 is prevented from being displaced and falling due to the change of the relative positions of the main table 200 and the sub-table 300 in the processing process. By providing the connection positioning members 700 having different length and dimensions, the distance between the main frame 210 and the sub-frame 310 can be changed, and the function of adjusting the distance between the main table 200 and the sub-table 300 can be realized. Further preferably, the connection positioning member 700 may be a telescopic rod, and the length dimension is changed by self-expansion and contraction, thereby further improving the convenience of the adjustment. Referring to fig. 3 in combination, specifically, the main workbench 200 in this embodiment includes a first upper profiling platen 220, a first lower profiling platen 230 and a first back-drawing positioning assembly 240, the first lower profiling platen 230 is mounted on the main frame 210, the first upper profiling platen 220 is fixedly mounted on the main frame 210, the first upper profiling platen 220 and the first lower profiling platen 230 are mounted in a pairing manner to form a first processing station, the large-sized profile 600 is at least partially placed in the first processing station, one end of the first back-drawing positioning assembly 240 is mounted on the first lower profiling platen 230, the other end of the first back-drawing positioning assembly 240 can be clamped on the first upper profiling platen 220, and the first back-drawing positioning assembly 240 can shrink and be used for pulling up the first lower profiling platen 230 to enable the large-sized profile 600 to abut against the first upper profiling platen 220. Through setting up first back-drawing locating component 240, when carrying out the location clamp to this part large-scale dysmorphism piece 600, with the large-scale dysmorphism piece 600 in the first processing station tightly support with first last profile modeling clamp plate 220, use first last profile modeling clamp plate 220 to process as the processing benchmark, when this face is processed, other faces are in the free state, can overcome the error that the work piece warp brought to guarantee that large-scale dysmorphism piece 600 can satisfy the dimensional tolerance requirement. The shape of the first upper profiling platen 220 and the first lower profiling platen 230 in this embodiment is dependent on the profile of the machined workpiece.

Referring to fig. 3 in combination, further, the auxiliary workbench 300 in this embodiment includes a second upper profiling platen 320, a second lower profiling platen 330 and a second back-drawing positioning assembly 340, the second lower profiling platen 330 is mounted on the auxiliary frame 310, the second upper profiling platen 320 is fixedly mounted on the auxiliary frame 310, the second upper profiling platen 320 and the second lower profiling platen 330 are mounted in pairs to form a second processing station, the large-sized profile 600 is at least partially placed in the second processing station, one end of the second back-drawing positioning assembly 340 is mounted on the second lower profiling platen 330, the other end of the second back-drawing positioning assembly 340 can be clamped on the second upper profiling platen 320, and the second back-drawing positioning assembly 340 can shrink and pull the second lower profiling platen 330 so as to be used for abutting and abutting the large-sized profile 600 with the second upper profiling platen 320. Through setting up second back-drawing positioning assembly 340, when carrying out the location clamp to this part large-scale dysmorphism piece 600, with the large-scale dysmorphism piece 600 in the second processing station tightly support with second upper profiling clamp plate 320, use second upper profiling clamp plate 320 to process as the processing benchmark, when this face is processed, other faces are in the free state, can overcome the error that the work piece warp and bring to guarantee that large-scale dysmorphism piece 600 can satisfy the dimensional tolerance requirement. The shape of the second upper profiling platen 320 and the second lower profiling platen 330 in this embodiment is dependent on the profile of the work piece being machined.

Further, in the present embodiment, a plurality of main tables 200 and sub tables 300 are provided, and a plurality of main tables 200 are provided on the main frame 210 at intervals, and a plurality of sub tables 300 are provided corresponding to a plurality of main tables 200, respectively. Through setting up a plurality of main workstations 200 and a plurality of auxiliary workbenches 300, can provide the processing station of a plurality of large-scale dysmorphism pieces 600, milling robot 400 processes between a plurality of stations to increase the quantity of the large-scale dysmorphism pieces 600 of simultaneous processing, promote machining efficiency.

Specifically, the main table 200 and the auxiliary table 300 in the present embodiment each include a fixing assembly 250, and the fixing assembly 250 is used to fixedly mount the first upper profiling platen 220 or the second upper profiling platen 320 on the main frame 210 or the auxiliary frame 310, respectively. The first upper profiling platen 220 can be fixedly mounted to the main frame 210 by providing the fixing assembly 250 on the main table 200. The second upper profiling platen 320 can be fixedly attached to the sub-frame 310 by providing the fixing unit 250 on the sub-table 300.

Specifically, the fixing assembly 250 in this embodiment includes a first supporting leg 251, a second supporting leg 252 and a supporting plate 253, where the first supporting leg 251 and the second supporting leg 252 are vertically installed on the main frame 210 or the auxiliary frame 310, one end of the supporting plate 253 is fixedly connected with the first upper profiling platen 220 or the second upper profiling platen 320, and the other end of the supporting plate 253 is fixedly connected with the first supporting leg 251 and the second supporting leg 252.

Further, in this embodiment, the support plate 253 is provided with an opening 254, and the opening 254 is used for clamping the first back-suction positioning assembly 240 or the second back-suction positioning assembly 340. On the main workbench 200, through the arrangement of the opening 254, the first back-drawing positioning assembly 240 can be clamped in the opening 254, and when the first back-drawing positioning assembly 240 contracts, the first lower profiling pressing plate 230 can be pulled up to enable the large-sized special-shaped piece 600 to abut against the first upper profiling pressing plate 220 for tightly supporting. On the auxiliary workbench 300, through the arrangement of the opening 254, the second back-drawing positioning assembly 340 can be clamped in the opening 254, and when the second back-drawing positioning assembly 340 contracts, the second lower profiling pressing plate 330 can be pulled up to enable the large-sized special-shaped piece 600 to abut against the second upper profiling pressing plate 320 for tightly supporting.

Referring to fig. 4 in combination, specifically, the first back-drawing positioning assembly 240 and the second back-drawing positioning assembly 340 in this embodiment each include a locking base 241, a locking shaft 242, a back-drawing nut 243, a back-drawing screw 244 and a locking screw 245, the locking base 241 is mounted on the first lower profiling platen 230 or the second lower profiling platen 330, one end of the back-drawing nut 243 is rotatably connected with the locking base 241 through the locking shaft 242, the back-drawing screw 244 is rotatably connected with the end surface of the other end of the back-drawing nut 243, the back-drawing screw 244 can be screwed into the back-drawing nut 243, the nut of the back-drawing screw 244 can be clamped to the opening 254, and the locking screw 245 is used for fixing the relative position of the back-drawing screw 244 and the support plate 253. On the main workbench 200, the back-drawing screw 244 is clamped in the opening 254 of the supporting plate 253 by rotating the back-drawing nut 243, the back-drawing screw 244 is selected into the back-drawing nut 243, at this time, the back-drawing screw 244 moves towards the direction of the back-drawing nut 243, the first lower profiling pressing plate 230 is pulled up, and the large-sized special-shaped piece 600 can move upwards to abut against the first upper profiling pressing plate 220. On the auxiliary workbench 300, the back-drawing screw 244 is clamped in the opening 254 of the supporting plate 253 by rotating the back-drawing nut 243, the back-drawing screw 244 is selected into the back-drawing nut 243, at this time, the back-drawing screw 244 moves towards the direction of the back-drawing nut 243, the second lower profiling pressing plate 330 is pulled up, and the large-sized special-shaped piece 600 can move upwards to abut against the second upper profiling pressing plate 320.

Preferably, the first upper profiling platen 220, the first lower profiling platen 230, the second upper profiling platen 320 and the second lower profiling platen 330 in the present embodiment are provided with handles to facilitate moving the first upper profiling platen 220, the first lower profiling platen 230, the second upper profiling platen 320 and the second lower profiling platen 330.

Further, the first upper profiling platen 220, the first lower profiling platen 230, the second upper profiling platen 320 and the second lower profiling platen 330 in this embodiment are all provided with avoidance holes. Because the shape of the large-sized special-shaped piece 600 is irregular, when the large-sized special-shaped piece 600 is placed in the first processing station or the second processing station, the avoidance holes can avoid part of the structure of the large-sized special-shaped piece 600, so that the placement of the large-sized special-shaped piece 600 in the processing process is ensured to be more stable, and the clamping of the large-sized special-shaped piece 600 is facilitated.

Referring to fig. 5 in combination, specifically, the milling robot 400 in the present embodiment includes a six-axis mechanical arm 410 and an electric spindle milling groove 420, the six-axis mechanical arm 410 is mounted on the main frame 210, and the electric spindle milling groove 420 is mounted at the end of the six-axis mechanical arm 410. The six-axis mechanical arm 410 can meet the requirement of processing the same large-sized special-shaped piece 600 at different angles. In addition, the machining of the large-sized special-shaped piece 600 with a plurality of stations can be completed through one clamping, and therefore machining efficiency can be improved. The electric spindle milling groove 420 in the embodiment has a compact structure and sufficient power, and can meet the milling requirement of the large-sized special-shaped piece 600. Preferably, the electric spindle milling groove 420 can select the electric spindle milling groove 420 with 4.5kw of electric power, variable frequency speed regulation and 18000RPM of maximum rotating speed, so as to ensure that the milling requirement of the large-sized special-shaped piece 600 can be met.

Further, taking the first vent hole and the second vent hole of the air inlet pipe of the engine of the processing truck as an example, the processing flow of the processing equipment for the large-scale special-shaped piece is described:

firstly, the truck engine air inlet pipe is placed on the first lower cam and the second lower cam of the main workbench 200 and the auxiliary workbench 300, so that the problem that the truck engine air inlet pipe is inconvenient to place due to overlarge size can be solved. The first upper profiling pressing plate 220 on the main workbench 200 is positioned and locked on the tightening base through the locking shaft 242, and then the first lower profiling pressing plate 230 is lifted to the inner surface of the first upper profiling pressing plate 220 through the back-drawing nut 243 to be positioned and locked, and the other surfaces are in a free state at the moment, so that the deformation of the air inlet pipe of the truck engine to be positioned inaccurately can be avoided. The motorized spindle milling flutes 420 of the milling robot 400 are controlled to machine a first vent in the truck engine air intake. The truck engine air inlet pipe part on the main workbench 200 is loosened, the truck engine air inlet pipe part on the auxiliary workbench 300 is clamped, the second upper profiling pressing plate 320 on the auxiliary workbench 300 is positioned and locked on the tightening base through the locking shaft 242, then the second upper profiling pressing plate 330 is lifted to the inner surface of the second upper profiling pressing plate 320 through the second lower profiling pressing plate 330 by the back-drawing nut 243 to be positioned and locked, and the electric spindle milling groove 420 mechanism of the milling robot 400 is controlled to process the second ventilation holes in the truck engine air inlet pipe. The truck engine intake pipe portion on the secondary table 300 is released to obtain a finished truck engine intake pipe. It is to be understood that the above-described embodiments of the present utility model are provided by way of illustration only and not limitation of the embodiments thereof. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (11)

1. Large-scale dysmorphism piece processing equipment, its characterized in that includes:

a main workbench (200), wherein at least part of the large-scale special-shaped piece (600) is positioned and clamped on the main workbench (200);

the auxiliary workbench (300) is arranged on the side edge of the main workbench (200), the distance between the auxiliary workbench (300) and the main workbench (200) is adjustable, and at least part of the large-sized special-shaped piece (600) is positioned and clamped on the auxiliary workbench (300);

-a milling robot (400), the milling robot (400) being configured to mill the large profile (600), and

the control cabinet (500), control cabinet (500) with milling robot (400) communication connection.

2. The large form processing apparatus according to claim 1, further comprising a connection location (700), wherein the main table (200) comprises a main frame (210), wherein the auxiliary table (300) comprises an auxiliary frame (310), and wherein the main frame (210) and the auxiliary frame (310) are connected by the connection location.

3. The large profile machining apparatus of claim 2, wherein the main table (200) includes a first upper profiling platen (220), a first lower profiling platen (230) and a first back-drawing positioning assembly (240), the first lower profiling platen (230) being mounted on the main frame (210), the first upper profiling platen (220) being fixedly mounted on the main frame (210), the first upper profiling platen (220) being mounted in mating relation with the first lower profiling platen (230) to form a first machining station, the large profile (600) being at least partially placed in the first machining station, one end of the first back-drawing positioning assembly (240) being mounted on the first lower profiling platen (230), the other end of the first back-drawing positioning assembly (240) being capable of being snapped onto the first upper profiling platen (220), the first back-drawing positioning assembly (240) being capable of retracting and pulling up the first lower profiling platen (230) to bring the large profile (600) into abutment with the first upper profiling platen (220).

4. A large profile machining apparatus as claimed in claim 3, characterized in that the secondary table (300) comprises a second upper profiling platen (320), a second lower profiling platen (330) and a second back-drawing positioning assembly (340), the second lower profiling platen (330) being mounted on the secondary frame (310), the second upper profiling platen (320) being fixedly mounted on the secondary frame (310), the second upper profiling platen (320) and the second lower profiling platen (330) being mounted in pairs to form a second machining station, the large profile (600) being at least partially placed in the second machining station, one end of the second back-drawing positioning assembly (340) being mounted on the second lower profiling platen (330), the other end of the second back-drawing positioning assembly (340) being capable of being snapped onto the second upper profiling platen (320), the second back-drawing positioning assembly (340) being capable of retracting and pulling the second lower profiling platen (330) to bring the large profile into abutment with the second profiling platen (600).

5. The large-sized shaped piece processing apparatus according to claim 2, wherein the main table (200) and the sub-table (300) are provided in plural, the plurality of main tables (200) are provided on the main frame (210) at intervals, and the plurality of sub-tables (300) are provided in correspondence with the plurality of main tables (200), respectively.

6. The large form processing apparatus of claim 4, wherein the primary table (200) and the secondary table (300) each comprise a securing assembly (250), the securing assembly (250) being configured to fixedly mount the first upper contoured platen (220) or the second upper contoured platen (320) to the main frame (210) or secondary frame (310), respectively.

7. The large-scale special-shaped piece processing device according to claim 6, wherein the fixing assembly (250) comprises a first supporting leg (251), a second supporting leg (252) and a supporting plate (253), the first supporting leg (251) and the second supporting leg (252) are vertically installed on the main frame (210) or the auxiliary frame (310), one end of the supporting plate (253) is fixedly connected with the first upper profiling pressing plate (220) or the second upper profiling pressing plate (320), and the other end of the supporting plate (253) is fixedly connected with the first supporting leg (251) and the second supporting leg (252).

8. The large-sized profiled machining apparatus according to claim 7, characterized in that the support plate (253) is provided with an opening (254), the opening (254) being adapted to be snapped into the first or second back-suction positioning assembly (240, 340).

9. The large-scale profiled machining apparatus according to claim 8, characterized in that the first and second back-drawing positioning assemblies (240, 340) each comprise a locking base (241), a locking shaft (242), a back-drawing nut (243), a back-drawing screw (244) and a locking screw (245), the locking base (241) is mounted on the first lower profiling platen (230) or the second lower profiling platen (330), one end of the back-drawing nut (243) is rotationally connected with the locking base (241) through the locking shaft (242), the back-drawing screw (244) is rotationally connected with an end face of the other end of the back-drawing nut (243), the back-drawing screw (244) can be screwed into the back-drawing nut (243), the nut of the back-drawing screw (244) can be clamped in the opening (254), and the locking screw (245) is used for fixing the relative positions of the back-drawing screw (244) and the support plate (253).

10. The large form machining apparatus of claim 9, wherein the first upper contoured platen (220), the first lower contoured platen (230), the second upper contoured platen (320), and the second lower contoured platen (330) are each provided with a pull handle.

11. The large-sized shaped piece processing apparatus according to claim 2, wherein the milling robot (400) includes a six-axis mechanical arm (410) and an electric spindle milling groove (420), the six-axis mechanical arm (410) is mounted on the main frame (210), and the electric spindle milling groove (420) is mounted at an end of the six-axis mechanical arm (410).

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