CN215546630U

CN215546630U - Main chord member processing device

Info

Publication number: CN215546630U
Application number: CN202121674678.XU
Authority: CN
Inventors: 韩冠军; 郑鹏; 刘振华; 彭成辉; 刘江
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Zoomlion Construction Crane Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Zoomlion Construction Crane Co Ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-18
Anticipated expiration: 2031-07-21

Abstract

The utility model relates to a machining device, and discloses a main chord member machining device which comprises a workbench (4), a vertical boring device (7), a horizontal boring device (2), an end milling device (1) and a control system, wherein the workbench (4) is provided with a positioning device for positioning and clamping a main chord member (3), the vertical boring device (7) and the horizontal boring device (2) are both arranged on one side of the workbench (4), the vertical boring device (7) and the horizontal boring device (2) can move along the length direction of the workbench (4), the two ends of the workbench (4) are respectively provided with the end milling device (1), and the end milling device (1) can move along the direction close to or far away from the end part of the workbench (4); the vertical boring device (7), the horizontal boring device (2) and the end milling device (1) are electrically connected with a control system. The utility model can be processed and formed at one time, realizes automatic production and has high processing efficiency.

Description

Main chord member processing device

Technical Field

The utility model relates to a machining device, in particular to a main chord machining device.

Background

The main chord is an important part of a large-scale tower crane, the main body of the main chord is formed by splicing and welding heavy angle steel, and a large number of auxiliary welding structural parts, such as gusset plates, steps and the like, are arranged on the angle steel. The existing main chord member is machined by a common numerical control machine tool, the common numerical control machine tool only has one machining head, and the main chord member needs to machine holes and two end faces on two vertical surfaces, so that the machining needs to be divided into two times, before welding structural members such as a gusset plate and a step, the holes in the main chord member are drilled and bored, the two end faces of the main chord member are milled, then the structural members such as the gusset plate and the step are welded, and after the welding is finished, the holes in the gusset plate are drilled and reamed by a special tool through straightening a workpiece.

The existing main chord member processing is divided into two times of processing, the turnover frequency of materials is increased, so that the occupation of a field is increased, the two times of processing are difficult to realize automatic production, and the processing efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a main chord member processing device which can be used for processing and forming at one time, realizes automatic production and has high processing efficiency.

In order to solve the technical problems, the utility model provides a main chord member processing device which comprises a workbench, a vertical boring device, a horizontal boring device, an end milling device and a control system, wherein the workbench is provided with a positioning device for positioning and clamping the main chord member, the vertical boring device and the horizontal boring device are both arranged on one side of the workbench and can move along the length direction of the workbench, the two ends of the workbench are respectively provided with the end milling device, and the end milling device can move along the direction close to or far away from the end part of the workbench; the vertical boring device, the horizontal boring device and the end milling device are all electrically connected with the control system.

Preferably, the vertical boring device comprises a vertical boring base, a vertical machine body and a vertical machining boring head installed on the vertical machine body, wherein the vertical boring base is installed on one side of the workbench in a sliding manner along the length direction of the workbench, and the vertical machine body is installed on the vertical boring base in a sliding manner along the width direction of the workbench; the horizontal boring device comprises a horizontal boring base, a horizontal machine body and a horizontal machining boring head installed on the horizontal machine body, wherein the horizontal boring base is installed on one side of the workbench in a sliding mode along the length direction of the workbench, and the horizontal machine body is installed on the horizontal boring base in a sliding mode along the width direction of the workbench.

Preferably, symmetrical first sliding guide rails are arranged on one side of the workbench along the length direction of the workbench, a first lead screw and a second lead screw are respectively arranged between the symmetrical first sliding guide rails, the horizontal boring base and the vertical boring base are respectively in threaded connection with the first lead screw and the second lead screw, first sliding grooves matched with the first sliding guide rails are respectively arranged at the bottoms of the horizontal boring base and the vertical boring base, and the first lead screw and the second lead screw are respectively driven by a first driving unit and a second driving unit so as to respectively drive the horizontal boring base and the vertical boring base to move along the length direction of the workbench.

Preferably, the end milling device comprises an end milling machine body and an end milling head mounted on the end milling machine body, wherein symmetrical second sliding guide rails are arranged at two ends of the workbench respectively along the length direction of the workbench, symmetrical third lead screws are arranged between the second sliding guide rails, the end milling machine body is in threaded connection with the third lead screws, a second sliding chute matched with the second sliding guide rails is arranged at the bottom of the end milling machine body, and the third lead screws are driven by a third driving unit to drive the end milling machine body to move along the direction of the end part of the workbench.

Preferably, the positioning device comprises a horizontal centering clamping mechanism and a vertical pressing mechanism, the horizontal centering clamping mechanism comprises clamping parts which are oppositely arranged along the width direction of the workbench, and the opposite clamping parts are arranged to be relatively close to or relatively far away; the vertical pressing mechanism comprises a pressing part and a lifting device, wherein the pressing part is oppositely arranged along the width direction of the workbench, the lifting device is connected with the pressing part, and the lifting device is suitable for lifting through the lifting device to drive the pressing part to press or keep away from the main chord.

Preferably, the workbench is provided with a positive lead screw and a negative lead screw, the opposite clamping parts are in threaded connection with the positive lead screw and the negative lead screw, and the positive lead screw and the negative lead screw are driven by the clamping driving unit so as to drive the opposite clamping parts to be relatively close to or relatively far away from each other.

Preferably, the clamping drive unit is a hydraulic motor.

Preferably, the vertical pressing mechanism further comprises a pressing positioning seat and a connecting rod, the lifting device is installed on the pressing positioning seat, one end of the connecting rod is hinged to the pressing positioning seat, the other end of the connecting rod is hinged to the pressing portion, the tail end of the pressing portion is hinged to the lifting device, and the pressing end of the pressing portion can be driven by the lifting device to rotate so as to press or keep away from the main chord.

Preferably, the lifting device is a vertically arranged compression oil cylinder, and the tail end of the compression part is hinged to a piston rod of the compression oil cylinder.

Preferably, the control system is a PLC control system.

By arranging the vertical boring device, the horizontal boring device and the end milling device, different surfaces of the main chord member can be simultaneously machined after the main chord member is welded with structural members such as a gusset plate, a step and the like and is clamped at one time, and the main chord member can be machined and formed at one time, so that the machining efficiency can be greatly improved; through setting up control system, can make vertical bore hole device, horizontal bore hole device and end mill device coordinate the cooperation processing, avoid producing the interference each other, can realize automated processing production to can make up the processing wantonly as required.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a side view of a horizontal boring apparatus and a left end milling apparatus in one embodiment of the present invention;

FIG. 3 is a side view of a neutral boring apparatus and a right end milling apparatus in one embodiment of the present invention;

FIG. 4 is a top view of a structure for moving the vertical boring device, the horizontal boring device, and the end milling device;

FIG. 5 is a schematic diagram of a horizontal centering and clamping mechanism according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a vertical pressing mechanism in one embodiment of the present invention.

Description of the reference numerals

1a end milling machine body of 1 end milling device

1b end milling head 2 horizontal boring device

2a horizontal machine body 2b horizontal processing boring head

2c horizontal boring base 3 main chord member

4 horizontal centering clamping mechanism of workbench 5

5a positive and negative lead screw 5b clamping part

5c vertical pressing mechanism of clamping driving unit 6

6a pressing part 6b connecting rod

6d pressing positioning seat of 6c pressing oil cylinder

7 vertical boring device 7a vertical machine body

7c vertical boring base of 7b vertical processing boring head

8 side base 9 first sliding guide rail

10 base 11 second sliding guide

12 first drive unit 13 first lead screw

14 second lead screw 15 second drive unit

16 third drive unit 17 third lead screw

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The utility model provides a main chord member processing device which comprises a workbench 4, a vertical boring device 7, a horizontal boring device 2, an end milling device 1 and a control system, wherein a positioning device for positioning and clamping a main chord member 3 is arranged on the workbench 4, the vertical boring device 7 and the horizontal boring device 2 are both arranged on one side of the workbench 4, the vertical boring device 7 and the horizontal boring device 2 can move along the length direction of the workbench 4, the end milling device 1 is respectively arranged at two ends of the workbench 4, and the end milling device 1 can move along the direction close to or far away from the end part of the workbench 4; the vertical boring device 7, the horizontal boring device 2 and the end milling device 1 are all electrically connected with the control system.

In this embodiment, the vertical boring device 7 and the horizontal boring device 2 are used to machine holes on two vertical surfaces of the main chord member 3, and the end milling devices 1 provided at both ends of the table 4 are used to machine both end surfaces of the main chord member 3. The vertical boring device 7 and the horizontal boring device 2 are both arranged to move along the length direction of the workbench 4, so that the vertical boring device 7 and the horizontal boring device 2 can adjust the processing positions according to the position of a hole to be processed, and the vertical boring device and the horizontal boring device can be suitable for processing different types of main chords 3; the end milling device 1 is arranged to be capable of moving in the direction close to or far away from the end part of the workbench 4, so that the end milling device 1 can adjust the processing position according to the length of the main chord 3, and the end milling device is suitable for processing the main chord 3 with different lengths; through setting up vertical bore hole device 7, horizontal bore hole device 2 and end and milling device 1, after main chord member 3 has welded the structure such as gusset plate, mark time and once the clamping, can process simultaneously the different faces of main chord member 3, accomplish the processing of milling face, bore hole of main chord member 3 promptly simultaneously, one shot forming to machining efficiency can be improved greatly.

Meanwhile, by arranging the control system, the vertical boring device 7, the horizontal boring device 2 and the end milling device 1 can be coordinated and matched for machining through the control system, so that interference among the vertical boring device, the horizontal boring device and the end milling device is avoided, automatic machining production can be realized, and random combination machining can be carried out as required. For example, during machining, the control system can control the horizontal boring device 2 to machine a hole in the vertical surface of the main chord 3 from right to left, and control the end milling device 1 at the left end of the workbench 4 to machine the left end surface of the main chord 3 at the same time, after the horizontal boring device 2 machines a certain distance, the vertical boring device 7 is controlled to machine a hole in the horizontal surface of the main chord 3 from right to left, and when the vertical boring device 7 and the horizontal boring device 2 are both machined to the right end surface away from the main chord 3, the end milling device 1 at the right end of the workbench 4 is controlled to machine the right end surface of the main chord 3. Of course, other processing modes can be adopted, for example, the vertical boring device 7 and the horizontal boring device 2 are controlled in sequence to process the holes on the main chord 3 from left to right, and the like. The control system is a PLC control system. The control software related to the utility model adopts the prior art.

In order to facilitate understanding of the main chord machining apparatus according to the above-described basic embodiment of the present invention, the following description will be made with reference to specific configurations.

Specifically, as shown in fig. 3, the vertical boring device 7 includes a vertical boring base 7c, a vertical machine body 7a, and a vertical machining boring head 7b mounted on the vertical machine body 7a, the vertical boring base 7c is slidably mounted on one side of the workbench 4 along a length direction of the workbench 4, and the vertical machine body 7a is slidably mounted on the vertical boring base 7c along a width direction of the workbench 4. The vertical boring base 7c is slidably mounted on the side of the table 4 in the longitudinal direction of the table 4, and since the vertical machine body 7a and the vertical machining boring head 7b are both mounted on the vertical boring base 7c, the entire vertical boring device 7 is slidably mounted on the side of the table 4 so as to be movable in the longitudinal direction of the table 4. The vertical machine body 7a is slidably mounted on the vertical boring base 7c along the width direction of the workbench 4, so that the vertical machine body 7a can drive the vertical machining boring head 7b to move along the width direction of the workbench 4, and the position of the vertical machining boring head 7b can be adjusted to facilitate machining. Wherein, be equipped with the guide rail of the symmetry that sets up along 4 width directions of workstation on the vertical bore hole base 7c, be equipped with the lead screw between the guide rail of symmetry, vertical fuselage 7a threaded connection be in on the lead screw, and vertical fuselage 7a bottom be equipped with guide rail matched with spout, the lead screw passes through drives such as motor or hydraulic motor. Of course, the vertical machining boring head 7b can also be moved in the height direction of the vertical machine body 7a, for example, the vertical machining boring head 7b can be slidably mounted on the vertical machine body 7a through a guide rail and a lead screw, thereby facilitating adjustment of the machining height thereof.

Specifically, as shown in fig. 2, the horizontal boring device 2 includes a horizontal boring base 2c, a horizontal machine body 2a, and a horizontal machining boring head 2b mounted on the horizontal machine body 2a, the horizontal boring base 2c is slidably mounted on one side of the workbench 4 along a length direction of the workbench 4, and the horizontal machine body 2a is slidably mounted on the horizontal boring base 2c along a width direction of the workbench 4. The horizontal boring base 2c is slidably mounted on one side of the workbench 4 along the length direction of the workbench 4, and the horizontal machine body 2a and the horizontal machining boring head 2b are both mounted on the horizontal boring base 2c, so that the whole horizontal boring device 2 is slidably mounted on one side of the workbench 4, and can move along the length direction of the workbench 4. The horizontal machine body 2a is slidably mounted on the horizontal boring base 2c along the width direction of the workbench 4, so that the horizontal machine body 2a can drive the horizontal machining boring head 2b to move along the width direction of the workbench 4, and the position of the horizontal machining boring head 2b can be adjusted to facilitate machining. The horizontal boring base 2c is provided with symmetrical guide rails arranged along the width direction of the workbench 4, a lead screw is arranged between the symmetrical guide rails, the horizontal machine body 2a is in threaded connection with the lead screw, the bottom of the horizontal machine body 2a is provided with a sliding groove matched with the guide rails, and the lead screw is driven by a motor or a hydraulic motor and the like. Of course, the horizontal machining boring head 2b can also be moved in the height direction of the horizontal machine body 2a, for example, the horizontal machining boring head 2b can be slidably mounted on the horizontal machine body 2a via a guide rail and a lead screw, thereby facilitating adjustment of the machining height thereof.

Specifically, as shown in fig. 4, symmetrical first sliding guide rails 9 are arranged on one side of the workbench 4 along the length direction of the workbench, a first lead screw 13 and a second lead screw 14 are respectively arranged between the symmetrical first sliding guide rails 9, the horizontal boring base 2c and the vertical boring base 7c are respectively in threaded connection with the first lead screw 13 and the second lead screw 14, first sliding grooves matched with the first sliding guide rails 9 are respectively arranged at the bottoms of the horizontal boring base 2c and the vertical boring base 7c, and the first lead screw 13 and the second lead screw 14 are respectively driven by a first driving unit 12 and a second driving unit 15 so as to respectively drive the horizontal boring base 2c and the vertical boring base 7c to move along the length direction of the workbench 4. Through setting up first lead screw 13, second lead screw 14, first drive unit 12 and second drive unit 15, can control the removal of vertical bore hole base 7c and horizontal bore hole base 2c respectively, through with vertical bore hole base 7c and horizontal bore hole base 2c slidable mounting on same sliding guide for compact structure can reduce occupation space. Of course, symmetrical first sliding grooves arranged along the length direction of the workbench 4 may be arranged on one side of the workbench 4, and first sliding guide rails 9 matched with the first sliding grooves are arranged at the bottoms of the horizontal boring base 2c and the vertical boring base 7c, so that the vertical boring base 7c and the horizontal boring base 2c can be installed in a sliding manner. The first and

second driving units

12 and 15 may be electric motors or hydraulic motors.

In this embodiment, the working table 4 and the end milling device 1 are both mounted on a base 10, a side base 8 is disposed on one side of the base 10, the vertical boring device 7 and the horizontal boring device 2 are both slidably mounted on the side base 8, and accordingly, the symmetrical first sliding guide rail 9, the first lead screw 13 and the second lead screw 14 are also mounted on the side base 8. The first lead screw 13 is formed by extending from the left end to the right end of the side base 8, the first driving unit 12 is connected to the left end of the first lead screw 13, the length of the first lead screw 13 is smaller than that of the side base 8, and the length of the first lead screw is set to enable the horizontal boring base 2c to move to the right end of the main chord 3, and certainly, the length of the first lead screw can also be equal to that of the side base 8; the second lead screw 14 is formed by extending from the right end of the side base 8 to the left end, the second driving unit 15 is connected to the right end of the second lead screw 14, the length of the second lead screw 14 is smaller than that of the side base 8, the length of the second lead screw is set to enable the vertical boring base 7c to move to the left end of the main chord 3, and of course, the length of the second lead screw can also be equal to that of the side base 8. The first lead screw 13 may be provided to extend from the right end of the side base 8 to the left end, and the second lead screw 14 may be provided to extend from the left end of the side base 8 to the right end.

Specifically, as shown in fig. 1 and 4, the end milling device 1 includes an end milling machine body 1a and an end milling head 1b installed on the end milling machine body 1a, two ends of the working table 4 are respectively provided with symmetrical second sliding guide rails 11 arranged along the length direction thereof, the symmetrical second sliding guide rails 11 are provided with third lead screws 17 therebetween, the end milling machine body 1a is in threaded connection with the third lead screws 17, a second sliding chute matched with the second sliding guide rails 11 is arranged at the bottom of the end milling machine body 1a, and the third lead screws 17 are driven by a third driving unit 16 to drive the end milling machine body 1a to move along the direction of the end part of the working table 4. The end milling head 1b can also move along the height direction of the end milling machine body 1a, for example, the end milling head 1b can be slidably mounted on the end milling machine body 1a through a guide rail and a lead screw, so that the machining height of the end milling head can be conveniently adjusted; the third drive unit 16 may be an electric motor or a hydraulic motor.

Before the vertical boring device 7, the horizontal boring device 2 and the end milling device 1 are used for processing the main chord member 3, the main chord member 3 needs to be positioned and clamped on the workbench 4 through a positioning device. Specifically, as shown in fig. 5, the positioning device includes a horizontal centering and clamping mechanism 5, the horizontal centering and clamping mechanism 5 includes clamping portions 5b which are oppositely disposed in the width direction of the table 4, and the opposite clamping portions 5b are disposed so as to be relatively close to or relatively far from each other. In actual operation, the main chord 3 can be clamped by relatively moving the opposed clamping portions 5b closer together after the main chord 3 is placed on the table 4, and the main chord 3 can be released by relatively moving the opposed clamping portions 5b away from each other after the machining is completed. Through setting up relative clamping part 5b, can realize that the automatic centering of main chord 3 presss from both sides tightly, positioning accuracy is high, simultaneously through relative being close to or keeping away from relatively of relative clamping part 5b for it can adapt to the location of different model main chords 3, makes the commonality stronger. The number of the horizontal centering clamping mechanisms 5 is at least two, and the at least two horizontal centering clamping mechanisms 5 are arranged at intervals along the length direction of the workbench 4, so that different parts of the main chord 3 in the length direction can be conveniently positioned, and the positioning accuracy of the main chord 3 is ensured.

More specifically, be equipped with positive and negative lead screw 5a on workstation 4, it is relative clamping part 5b threaded connection be in positive and negative lead screw 5a, positive and negative lead screw 5a passes through the drive of clamping drive unit 5c to can drive relatively clamping part 5b is close to relatively or is kept away from relatively. The opposite clamping portions 5b are respectively screwed on the forward thread end and the reverse thread end of the forward and reverse screw rods 5a, so that the clamping driving unit 5c can drive the opposite clamping portions 5b to relatively close or relatively far away. The stroke of the positive and negative lead screws 5a is set to be compatible with the sizes of various main chords 3, for example, 120mm multiplied by 120mm to 250mm multiplied by 250mm, so that the positioning device can be suitable for positioning of main chords 3 of different models. Of course, the relative approach or the relative distance of the opposite clamping portions 5b can be realized by other structures, for example, a rack and pinion forward and reverse transmission mechanism can be adopted. Similarly, the clamping driving unit 5c may take various forms as long as it can drive the forward and backward screw 5a to rotate, and may be, for example, an electric motor or a hydraulic motor.

As shown in fig. 6, the positioning device further includes a vertical pressing mechanism 6, and the vertical pressing mechanism 6 includes a pressing portion 6a oppositely disposed in the width direction of the working table 4 and a lifting device connected to the pressing portion 6a, and the lifting device is adapted to lift and lower to drive the pressing portion 6a to press or separate from the main chord 3. Specifically, the vertical pressing mechanism 6 further comprises a pressing positioning seat 6d and a connecting rod 6b, the lifting device is installed on the pressing positioning seat 6d, one end of the connecting rod 6b is hinged to the pressing positioning seat 6d, the other end of the connecting rod is hinged to the pressing portion 6a, the tail end of the pressing portion 6a is hinged to the lifting device, and the pressing end of the pressing portion 6a can be driven by the lifting device to rotate so as to press or keep away from the main chord 3. In actual operation, after the main chord 3 is placed on the workbench 4, the lifting device drives the tail end of the pressing part 6a to ascend, and due to the hinging action of the connecting rod 6b, the pressing end of the pressing part 6a rotates downwards so as to be pressed on the upper end of the main chord 3; after the processing is completed, the lifting device drives the tail end of the pressing part 6a to descend, so that the pressing end of the pressing part 6a rotates upwards and leaves the main chord 3. Through setting up the portion 6a that compresses tightly, can realize the perpendicular location that compresses tightly of main chord 3, simultaneously through setting up elevating gear, can drive the portion 6a that compresses tightly compress tightly the end and rotate from top to bottom in order to compress tightly or keep away from main chord 3 for its location that can adapt to different model main chord 3, make the commonality stronger.

The number of the vertical pressing mechanisms 6 is at least two, and the at least two vertical pressing mechanisms 6 are arranged at intervals along the length direction of the workbench 4, so that the vertical pressing and positioning of different parts in the length direction of the main chord 3 are facilitated, and the positioning accuracy of the main chord 3 is ensured. The lifting device is preferably a vertically arranged pressing oil cylinder 6c, and the tail end of the pressing part 6a is hinged on a piston rod of the pressing oil cylinder 6 c. The stroke of the piston rod of the pressing oil cylinder 6c is set to be compatible with the sizes of various main chords 3, such as 120mm multiplied by 120mm to 250mm multiplied by 250mm, so that the positioning device can be suitable for positioning of main chords 3 of different models. Of course, the vertical pressing mechanism 6 may not be provided with the connecting rod 6b, the tail end of the pressing portion 6a is fixed on the lifting device, and the pressing end of the pressing portion 6a is driven to be pressed on the main chord 3 by the descending of the lifting device, and similarly, the lifting device may also adopt other structures, such as a lead screw, the pressing portion 6a is connected to the lead screw in a threaded manner, and the pressing portion 6a is driven to ascend and descend by the lead screw, so as to drive the pressing portion 6a to press or keep away from the main chord 3.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the utility model is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. A main chord member processing device is characterized by comprising a workbench (4), a vertical boring device (7), a horizontal boring device (2), an end milling device (1) and a control system, wherein a positioning device for positioning and clamping a main chord member (3) is arranged on the workbench (4), the vertical boring device (7) and the horizontal boring device (2) are both arranged on one side of the workbench (4), the vertical boring device (7) and the horizontal boring device (2) can move along the length direction of the workbench (4), the end milling device (1) is respectively arranged at two ends of the workbench (4), and the end milling device (1) can move along the direction close to or far away from the end of the workbench (4); the vertical boring device (7), the horizontal boring device (2) and the end milling device (1) are electrically connected with the control system.

2. The main chord member processing device according to claim 1, wherein the vertical boring device (7) comprises a vertical boring base (7c), a vertical machine body (7a) and a vertical processing boring head (7b) mounted on the vertical machine body (7a), the vertical boring base (7c) is slidably mounted on one side of the workbench (4) along the length direction of the workbench (4), and the vertical machine body (7a) is slidably mounted on the vertical boring base (7c) along the width direction of the workbench (4); the horizontal boring device (2) comprises a horizontal boring base (2c), a horizontal machine body (2a) and a horizontal machining boring head (2b) installed on the horizontal machine body (2a), the horizontal boring base (2c) is installed on one side of the workbench (4) in a sliding mode along the length direction of the workbench (4), and the horizontal machine body (2a) is installed on the horizontal boring base (2c) in a sliding mode along the width direction of the workbench (4).

3. The main chord machining device according to claim 2, wherein symmetrical first sliding guide rails (9) are arranged on one side of the workbench (4) along the length direction of the workbench, a first lead screw (13) and a second lead screw (14) are respectively arranged between the symmetrical first sliding guide rails (9), the horizontal boring base (2c) and the vertical boring base (7c) are respectively in threaded connection with the first lead screw (13) and the second lead screw (14), first sliding grooves matched with the first sliding guide rails (9) are respectively arranged at the bottoms of the horizontal boring base (2c) and the vertical boring base (7c), and the first lead screw (13) and the second lead screw (14) are respectively driven by a first driving unit (12) and a second driving unit (15) to respectively drive the horizontal boring base (2c) and the vertical boring base (7c) to move along the length direction of the workbench (4) And (6) moving.

4. The main chord machining device according to claim 1, characterized in that the end milling device (1) comprises an end milling machine body (1a) and an end milling head (1b) mounted on the end milling machine body (1a), two ends of the working table (4) are respectively provided with symmetrical second sliding guide rails (11) arranged along the length direction of the working table, a third lead screw (17) is arranged between the symmetrical second sliding guide rails (11), the end milling machine body (1a) is in threaded connection with the third lead screw (17), a second sliding chute matched with the second sliding guide rails (11) is arranged at the bottom of the end milling machine body (1a), and the third lead screw (17) is driven by a third driving unit (16) to drive the end milling machine body (1a) to move along the direction of the end close to or far away from the working table (4).

5. A main chord member processing device according to claim 1, wherein the positioning device comprises a horizontal centering clamping mechanism (5) and a vertical pressing mechanism (6), the horizontal centering clamping mechanism (5) comprises clamping portions (5b) oppositely arranged in the width direction of the working table (4), and the opposite clamping portions (5b) are arranged relatively close to or relatively far away from each other; the vertical pressing mechanism (6) comprises pressing parts (6a) which are oppositely arranged along the width direction of the workbench (4) and a lifting device connected with the pressing parts (6a), and the lifting device is suitable for lifting to drive the pressing parts (6a) to press or keep away from the main chord (3).

6. A main chord processing device according to claim 5, characterized in that the worktable (4) is provided with a positive and negative lead screw (5a), the opposite clamping parts (5b) are screwed on the positive and negative lead screw (5a), and the positive and negative lead screw (5a) is driven by a clamping driving unit (5c) to drive the opposite clamping parts (5b) to relatively approach or relatively move away.

7. A main chord machining device according to claim 6, characterized in that the clamping drive unit (5c) is a hydraulic motor.

8. The main chord machining device according to claim 5, wherein the vertical pressing mechanism (6) further comprises a pressing positioning seat (6d) and a connecting rod (6b), the lifting device is mounted on the pressing positioning seat (6d), one end of the connecting rod (6b) is hinged to the pressing positioning seat (6d), the other end of the connecting rod is hinged to the pressing portion (6a), the tail end of the pressing portion (6a) is hinged to the lifting device, and the pressing end of the pressing portion (6a) can be driven by the lifting device to rotate to press or keep away from the main chord (3).

9. The main chord machining device according to claim 8, wherein the lifting device is a vertically arranged compaction cylinder (6c), and the tail end of the compaction part (6a) is hinged on a piston rod of the compaction cylinder (6 c).

10. The main chord machining device according to any one of claims 1 to 9, wherein the control system is a PLC control system.