CN216706835U

CN216706835U - Composite board butt welding end pretreatment machine processing device

Info

Publication number: CN216706835U
Application number: CN202220074503.3U
Authority: CN
Inventors: 康卫良; 杨广军
Original assignee: Luoyang Huicheng Steel Structure Co Ltd
Current assignee: Luoyang Huicheng Steel Structure Co Ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-06-10
Anticipated expiration: 2032-01-12

Abstract

The utility model relates to a processing device of a pretreatment machine for butt welding and welding ends of a composite plate, belonging to the technical field of machining, comprising a workbench and an N-shaped frame, wherein the open end of the N-shaped frame is downward, two end parts of the open end of the N-shaped frame are correspondingly and fixedly connected with the middle parts of two ends of the workbench, and the front side surface of the closed end of the N-shaped frame is provided with a connecting frame which is correspondingly parallel to the upper table surface of the workbench. The composite board to be processed is transferred to the workbench through the feeding and discharging mechanism, the composite board to be processed is positioned through the positioning mechanism, the composite board to be processed is pressed and fixed through the pressing mechanism, the butt welding end of the composite board to be processed is processed through the processing equipment, and the processed composite board is discharged through the feeding and discharging mechanism, so that the function of preprocessing the composite board to be processed is realized; after the positioning mechanism is arranged to position the composite board to be processed, the composite board to be processed can be kept away from, and the butt welding end of the composite board to be processed can be smoothly processed by processing equipment.

Description

Composite board butt welding end pretreatment machine processing device

Technical Field

The utility model relates to the technical field of machining, in particular to a machining device of a pretreatment machine for butt welding ends of composite boards.

Background

The existing metal price difference is very large, some metals are very high, some metals are cheap, the metal price with excellent performance is often high, the performances of different metals are also different, in order to reduce the cost of products produced by the existing enterprises, more and more products are made of composite metal plates, the composite metal plates are pressed into a whole by different metal layers, most of the metal layers are two layers, and the metal layers are respectively cheap metal and other metals with higher price. When the composite plate is subjected to butt welding, the butt welding end face needs to be cut, beveling is carried out, the same metal layers are welded together when butt welding is guaranteed, however, the existing cutting mode that the groove is machined by a semi-automatic rail cutting machine and a hand-held semi-automatic cutting machine is common, but the problem that the composite plate is difficult to position when being processed is solved, the accuracy of the groove is low, even the groove is inclined, and the butt welding is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a device for preprocessing a butt welding end of a composite board.

The utility model realizes the purpose through the following technical scheme:

a preprocessing machine processing device for butt welding and welding ends of composite boards comprises a workbench and an N-shaped frame, wherein the opening end of the N-shaped frame is downward, the two end parts of the opening end of the N-shaped frame are fixedly connected to the middle parts of the two ends of the workbench correspondingly, a connecting frame parallel to the upper table surface of the workbench correspondingly is arranged on the front side surface of the closed end of the N-shaped frame, a pressing mechanism for pressing the composite boards to be processed is arranged on the lower surface of the upper table surface of the connecting frame corresponding to the workbench along the length direction of the upper table surface of the workbench, and a positioning mechanism for positioning the composite boards to be processed is arranged on the connecting frame; a processing device for cutting the butt welding end of the composite board to be processed is arranged in front of the workbench, and a feeding and discharging mechanism for feeding and discharging the composite board to be processed is arranged behind the workbench;

the positioning mechanism comprises a first driving device, a lifting frame and a positioning block, the lifting frame is connected with the connecting frame in a vertical sliding mode, and the positioning block used for positioning the composite board to be processed is arranged at the lower end of the lifting frame along the length direction of the upper table top of the workbench; the connecting frame is provided with a first driving device for driving the lifting frame to move up and down.

Preferably, hold-down mechanism includes the telescoping device, compresses tightly the piece, the stiff end of telescoping device corresponds the rigid coupling with the link, and the flexible end of telescoping device is towards the mesa on the workstation, and the flexible end tip of telescoping device is equipped with the piece that compresses tightly that is used for the pressfitting to wait to process the composite sheet, compresses tightly the piece and be massive structure or rectangular structure, and this massive structure is equipped with a plurality ofly along mesa length direction interval on the workstation, and this rectangular structure sets up along mesa length direction on the workstation.

Preferably, the telescopic device comprises a threaded sleeve, one end of the threaded sleeve is fixedly connected with the connecting frame correspondingly, a screw rod coaxial with the threaded sleeve is in threaded fit at the other end of the threaded sleeve, one end of the screw rod, which is far away from the threaded sleeve, is rotatably connected with the pressing piece, and a flange turntable coaxial with the screw rod is fixedly mounted on the rod body of the screw rod, which is close to the pressing piece.

Preferably, the telescopic device is a cylinder, a hydraulic cylinder or an electric cylinder.

Preferably, the lower end face of the pressing piece is provided with a protective pad.

Preferably, the feeding and discharging mechanism comprises a feeding and discharging assembly, the feeding and discharging assembly comprises a lifting table and a support, the support is arranged on the upper table surface of the lifting table, a plurality of first conveying rollers are uniformly arranged on the upper end surface of the support along the width direction of the upper table surface of the workbench at intervals, and the central axis direction of the first conveying rollers is parallel to the length direction of the upper table surface of the workbench; the lifting platform is provided with a second driving device for driving all the first conveying rollers to synchronously roll in the same direction.

Preferably, the feeding and discharging mechanism comprises a feeding and discharging assembly, the feeding and discharging assembly comprises a lifting table and supports, a plurality of supports are uniformly arranged on the upper table surface of the lifting table at intervals along the length direction of the upper table surface of the working table, a plurality of first conveying rollers are uniformly arranged on the upper end surface of each support at intervals along the width direction of the upper table surface of the working table, and the central axis direction of each first conveying roller is parallel to the length direction of the upper table surface of the working table; the lifting platform is provided with a second driving device for driving all the first conveying rollers to synchronously roll in the same direction.

Preferably, go up unloading mechanism and still include conveying assembly, conveying assembly includes mounting bracket, second conveying roller, the inboard position that corresponds the workstation of mounting bracket is equipped with the elevating platform, and the mounting bracket upper end is uncovered, the even interval of mesa length direction is equipped with the second conveying roller that the top height is less than mesa height on the workstation along the workstation on the mounting bracket upper portion, and second conveying roller the central axis direction is parallel with mesa width direction on the workstation to the second conveying roller that corresponds to be located the elevating platform top sets up with support and interval in turn, the mounting bracket still is equipped with and is used for driving all synchronous and syntropy rolling third drive arrangement of second conveying roller.

Preferably, the device also comprises a swing frame, the upper end of the swing frame is correspondingly hinged with the rear side surface of the closed end of the N-shaped frame, and the lower end of the swing frame is provided with a baffle curtain; the N-shaped frame is further provided with a fourth driving device capable of driving the swing frame to rotate.

Preferably, a collecting box for collecting the processing scraps is arranged below the processing equipment.

Has the advantages that:

1. the composite board to be processed is transferred to a workbench through a feeding and discharging mechanism, the composite board to be processed is positioned through a positioning mechanism, the composite board to be processed is pressed and fixed through a pressing mechanism, the butt welding end of the composite board to be processed is processed through processing equipment, and the processed composite board is discharged through the feeding and discharging mechanism, so that the function of preprocessing the composite board to be processed is realized;

2. the lifting frame is driven to ascend through the first driving device, and the lifting frame drives the positioning block to ascend, so that the positioning block is far away from the butt welding end of the composite plate to be processed, the butt welding end of the composite plate to be processed can be smoothly processed by processing equipment, the function of positioning the composite plate to be processed is realized, the function of processing the butt welding end of the composite plate to be processed by the processing equipment is not influenced, and the processing precision of the composite plate to be processed is guaranteed;

3. due to the arrangement of the feeding and discharging mechanism, the functions of automatic feeding and discharging and conveying of the composite plate to be processed are realized, manual feeding is not needed, and the processing efficiency is improved;

4. due to the arrangement of the swing frame, the baffle curtain, the fourth driving device and the collecting box, the waste scraps during cleaning and processing are more convenient.

Additional features of the utility model and advantages thereof will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic structural view from another perspective of the present invention;

FIG. 4 is a schematic view of a pressing mechanism according to a first embodiment of the present invention;

fig. 5 is a schematic structural view of a pressing mechanism of a second embodiment of the present invention.

The reference numerals are explained below:

1. a work table; 2. an N-shaped frame; 3. a connecting frame; 4. a hold-down mechanism; 41. a telescoping device; 411. a threaded sleeve; 412. a screw; 413. a flange turntable; 42. a compression member; 5. a positioning mechanism; 51. a first driving device; 52. a lifting frame; 53. positioning blocks; 6. processing equipment; 7. a feeding and discharging mechanism; 71. a lifting platform; 72. a support; 73. a first conveying roller; 74. a mounting frame; 75. a second conveying roller; 8. a swing frame; 9. a curtain; 10. a fourth drive device; 11. and a collection box.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the first embodiment, as shown in fig. 1-5, a device for preprocessing a butt welding and welding end of a composite board comprises a workbench 1 and an N-type frame 2, wherein an open end of the N-type frame 2 faces downward, and two open ends of the N-type frame 2 are fixedly connected to the middle of two ends of the workbench 1 correspondingly, so that the composite board to be processed can be fed through abdicating the open end of the N-type frame 2, a connecting frame 3 correspondingly parallel to an upper table-board of the workbench 1 is arranged on a front side of a closed end of the N-type frame 2, a pressing mechanism 4 for pressing the composite board to be processed is arranged on a lower surface of the connecting frame 3 corresponding to the upper table-board of the workbench 1 along the length direction of the upper table-board of the workbench 1, so that the composite board to be processed can be pressed on the upper table-board of the workbench 1 through the pressing mechanism 4 to prevent the composite board to be processed from vibrating when the composite board to be processed is processed, the connecting frame 3 is provided with a positioning mechanism 5 for positioning the composite board to be processed, therefore, the composite board to be processed can be positioned through the positioning mechanism 5, and the composite board to be processed is prevented from inclining; a processing device 6 for cutting the butt welding end of the composite plate to be processed is arranged in front of the workbench 1, the processing device 6 adopts four-axis or more milling devices, namely, a processing main shaft can move along an X, Y, Z axis, an A axis rotating along the X axis is provided on the assumption that the X axis moves along the length direction of the workbench 1, and a feeding and discharging mechanism 7 for feeding and discharging the composite plate to be processed is arranged behind the workbench 1;

the positioning mechanism 5 comprises a first driving device 51, a lifting frame 52 and a positioning block 53, the lifting frame 52 is connected with the connecting frame 3 in a vertical sliding manner, and the positioning block 53 for positioning the composite board to be processed is arranged at the lower end of the lifting frame 52 along the length direction of the upper table top of the workbench 1; specifically, the positioning block 53 is correspondingly positioned in front of the workbench 1, preferably, the minimum distance from the workbench 1 to the plane where the rear end face of the positioning block 53 is positioned is 5-8mm, and the connecting frame 3 is provided with a first driving device 51 for driving the lifting frame 52 to move up and down;

set up like this and transfer to workstation 1 to waiting to process the composite sheet through last unloading mechanism 7, after the location of positioning mechanism 5, wait to process the composite sheet pressfitting on the mesa on workstation 1 through hold-down mechanism 4, then first drive arrangement 51 drive crane 52 rises, crane 52 drives locating piece 53 and rises, make locating piece 53 keep away from waiting to process the composite sheet butt welding end, guarantee that processing equipment 6 can process smoothly and wait to process the composite sheet butt welding end, then treat through processing equipment 6 and process the composite sheet butt welding end can, last through last unloading mechanism 7 to the composite sheet unloading that has processed can.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 4 and 5, the pressing mechanism 4 includes a telescopic device 41 and a pressing member 42, a fixed end of the telescopic device 41 is fixedly connected to the connecting frame 3, a telescopic end of the telescopic device 41 faces an upper table top of the workbench 1, the end portion of the telescopic end of the telescopic device 41 is provided with the pressing member 42 for pressing the composite board to be processed, the pressing member 42 is a block structure or a strip-shaped structure, the block structure is provided with a plurality of blocks at intervals along the length direction of the upper table top of the workbench 1, and the strip-shaped structure is provided along the length direction of the upper table top of the workbench 1;

the telescopic device 41 comprises a threaded sleeve 411, one end of the threaded sleeve 411 is fixedly connected with the connecting frame 3 correspondingly, the other end of the threaded sleeve is in threaded fit with a screw 412 coaxial with the threaded sleeve 411, one end of the screw 412, which is far away from the threaded sleeve 411, is rotatably connected with the pressing piece 42, a flange turntable 413 coaxial with the screw 412 is fixedly installed on the screw 412, which is close to the rod body of the pressing piece 42, so that the flange turntable 413 can be rotated, the flange turntable 413 drives the screw 412 to rotate, the screw 412 moves downwards or upwards under the action of the threaded sleeve 411, and the screw 412 drives the pressing piece 42 to move, thereby realizing the function of driving the pressing piece 42 to press the composite board to be processed;

the telescopic device 41 can also be an air cylinder, a hydraulic cylinder or an electric cylinder, and the function of automatically pressing and processing the composite board by the automatic pressing piece 42 can be realized by the arrangement;

the lower end face of the pressing piece 42 is provided with a protective pad.

In the third embodiment, on the basis of the first embodiment, the feeding and discharging mechanism 7 comprises a feeding and discharging assembly, the feeding and discharging assembly comprises a lifting table 71 and a support 72, the support 72 is arranged on the upper table surface of the lifting table 71, a plurality of first conveying rollers 73 are uniformly arranged on the upper end surface of the support 72 along the width direction of the upper table surface of the workbench 1 at intervals, and the central axis direction of the first conveying rollers 73 is parallel to the length direction of the upper table surface of the workbench 1; the lifting platform 71 is provided with a second driving device for driving all the first conveying rollers 73 to synchronously roll in the same direction, the lifting platform 71 can drive the support 72 to lift, the support 72 drives all the first conveying rollers 73 to lift, so that the upper end of each first conveying roller 73 can be higher than the upper table top of the workbench 1, at the moment, all the first conveying rollers 73 driven by the second driving device to synchronously roll in the same direction can move the composite plate to be processed on the first conveying rollers 73 to the workbench 1, and the feeding function is realized, in order to realize the function, the width of the composite plate to be processed is larger than the width of the upper table top of the workbench 1, preferably, the width of the composite plate to be processed is larger than 1.5 times of the width of the upper table top of the workbench 1, therefore, when the second driving device drives all the first conveying rollers 73 to reversely rotate, the discharging function can be realized, when the composite plate to be processed inclines, the positioning block 53 stops one side of the butt welding end of the composite plate to be processed, and the composite plate to be processed can rotate on the workbench 1 along with the continuous rolling of the first conveying roller 73, so that the automatic correction function is realized.

The fourth embodiment is different from the third embodiment in that the feeding and discharging mechanism 7 comprises a feeding and discharging assembly, the feeding and discharging assembly comprises a lifting table 71 and supports 72, a plurality of supports 72 are uniformly arranged on the upper table surface of the lifting table 71 at intervals along the length direction of the upper table surface of the workbench 1, a plurality of first conveying rollers 73 are uniformly arranged on the upper end surface of each support 72 at intervals along the width direction of the upper table surface of the workbench 1, and the central axis direction of each first conveying roller 73 is parallel to the length direction of the upper table surface of the workbench 1; the lifting table 71 is provided with a second driving device for driving all the first conveying rollers 73 to synchronously roll in the same direction;

the feeding and discharging mechanism 7 further comprises a conveying assembly, the conveying assembly comprises an installation frame 74 and second conveying rollers 75, a lifting table 71 is arranged on the inner side of the installation frame 74 corresponding to the position of the workbench 1, the upper end of the installation frame 74 is open, the second conveying rollers 75 with the top heights lower than the top height of the workbench 1 are uniformly arranged on the upper surface of the installation frame 74 along the length direction of the upper table surface of the workbench 1 at intervals, the central axis direction of the second conveying rollers 75 is parallel to the width direction of the upper table surface of the workbench 1, the second conveying rollers 75 corresponding to the upper portion of the lifting table 71 are arranged alternately with the supports 72 at intervals, and the installation frame 74 is further provided with third driving equipment for driving all the second conveying rollers 75 to roll synchronously and in the same direction;

the lifting platform 71 can drive all the supports 72 to lift, the supports 72 can drive all the first conveying rollers 73 to lift, therefore, the upper ends of the first conveying rollers 73 can be higher than the upper table top of the workbench 1, at the moment, all the first conveying rollers 73 are driven by the second driving device to synchronously and synchronously roll in the same direction, so that the composite plate to be processed on the first conveying rollers 73 can be moved to the workbench 1, and the feeding function is realized, preferably, the width of the upper table top of the workbench 1 is smaller than the width of the composite plate to be processed, therefore, when the second driving device drives all the first conveying rollers 73 to reversely rotate, the blanking function can be realized, all the supports 72 can also be driven by the lifting platform 71 to descend, so that the first conveying rollers 73 are separated from the composite plate to be processed, the composite plate to be processed abuts against the second conveying rollers 75, and then all the second conveying rollers 75 are driven by the third driving device to roll in the same direction, the function of conveying the composite board to be processed is realized.

In the fifth embodiment, on the basis of the first embodiment, the device further comprises a swing frame 8, the upper end of the swing frame 8 is correspondingly hinged with the rear side surface of the closed end of the N-shaped frame 2, and the lower end of the swing frame 8 is provided with a baffle curtain 9; the N-shaped frame 2 is also provided with a fourth driving device 10 capable of driving the swing frame 8 to rotate, so that before feeding, the swing frame 8 is driven to swing upwards through the fourth driving device 10, the swing frame 8 drives the check curtain 9 to move upwards, the check curtain 9 is far away from the workbench 1, normal feeding can be performed at the moment, after feeding, the swing frame 8 is reset, the check curtain 9 blocks the rear side of the opening end of the N-shaped frame 2 at the moment, and waste scraps are prevented from flying to the rear side of the workbench 1 during processing;

the collecting box 11 for collecting the processing scraps is arranged below the processing equipment 6, so that the scraps can be collected through the collecting box 11, the upper table surface of the workbench 1 can be designed to be a horizontal plane or an inclined plane with the front end lower than the rear end, and preferably, the upper table surface of the workbench 1 is an inclined plane with the front end lower than the rear end.

In the structure, when in use, all the second conveying rollers 75 are driven to roll by the third driving device, the composite board to be processed is conveyed to the rear part of the workbench 1 by the second conveying rollers 75, then the lifting platform 71 drives all the supports 72 to ascend, the supports 72 drive all the first conveying rollers 73 to ascend to be adapted to the upper table surface of the workbench 1, then the second driving device is started, the second driving device drives all the first conveying rollers 73 to rotate, so that the butt welding ends of the composite board to be processed are abutted to the positioning blocks 53, then the lifting platform 71 drives the supports 72 to reset, at the moment, the lower plate surface of the composite board to be processed is abutted to the upper table surface of the workbench 1, then the telescopic device 41 is operated, so that the pressing piece 42 presses the composite board to be processed, then the first driving device 51 is started, the first driving device 51 drives the lifting frame 52 to ascend, the lifting frame 52 drives the positioning blocks 53 to ascend, at the moment, the positioning block 53 is far away from the composite board to be processed, then the fourth driving device 10 is started, the fourth driving device 10 drives the swing frame 8 to swing downwards, the swing frame 8 drives the baffle curtain 9 to move downwards, so that the lower end of the baffle curtain 9 is lapped on the composite board to be processed and the upper table surface of the workbench 1, at the moment, the processing device 6 is started to process the butt welding end of the composite board to be processed, after the processing is finished, the telescopic device 41 is operated, the pressing piece 42 is separated from the composite board to be processed, then the lifting table 71 drives all the supports 72 to ascend, so that the processed composite board is separated from the workbench, then the second driving device is started, so that the processed composite board returns to the position above the second conveying roller 75, in the process of returning to the position above the second conveying roller 75, the baffle curtain 9 is in contact fit with the upper plate surface of the processed composite board, therefore, the scraps on the processed composite board are cleaned, then the fourth driving device 10 is reset to make the curtain 9 separate from the working table 1, and finally the third driving device is used to drive all the second conveying rollers 75 to roll, so as to transfer the processed composite board to the next procedure.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a composite sheet butt welding weld end preliminary treatment processingequipment, includes workstation (1), N type frame (2), its characterized in that: the opening end of the N-shaped frame (2) faces downwards, two end parts of the opening end of the N-shaped frame (2) are fixedly connected to the middle parts of two ends of the workbench (1) correspondingly, a connecting frame (3) which is parallel to the upper table top of the workbench (1) correspondingly is arranged on the front side face of the closed end of the N-shaped frame (2), a pressing mechanism (4) for pressing the composite plate to be processed is arranged on the lower portion face of the connecting frame (3) corresponding to the upper table top of the workbench (1) along the length direction of the upper table top of the workbench (1), and a positioning mechanism (5) for positioning the composite plate to be processed is arranged on the connecting frame (3); a processing device (6) for cutting the butt welding end of the composite board to be processed is arranged in front of the workbench (1), and a feeding and discharging mechanism (7) for feeding and discharging the composite board to be processed is arranged behind the workbench (1);

the positioning mechanism (5) comprises a first driving device (51), a lifting frame (52) and a positioning block (53), the lifting frame (52) is connected with the connecting frame (3) in a vertical sliding mode, and the positioning block (53) used for positioning the composite board to be processed is arranged at the lower end of the lifting frame (52) along the length direction of the upper table top of the workbench (1); the connecting frame (3) is provided with a first driving device (51) for driving the lifting frame (52) to move up and down.

2. The pretreatment machining device for butt welding and welding ends of composite plates according to claim 1, wherein: hold-down mechanism (4) include telescoping device (41), compress tightly piece (42), the stiff end of telescoping device (41) corresponds the rigid coupling with link (3), the flexible end of telescoping device (41) is towards mesa on workstation (1), and the flexible end tip of telescoping device (41) is equipped with and is used for the pressfitting to wait to process compressing tightly piece (42) of composite sheet, compress tightly piece (42) and be blocky structure or rectangular form structure, this blocky structure is equipped with a plurality ofly along workstation (1) last mesa length direction interval, this rectangular form structure is followed workstation (1) and is gone up mesa length direction and set up.

3. The pretreatment machining device for butt welding and welding ends of composite plates according to claim 2, wherein: the telescopic device (41) comprises a threaded sleeve (411), one end of the threaded sleeve (411) is fixedly connected with the connecting frame (3) correspondingly, a screw rod (412) coaxial with the threaded sleeve (411) is in threaded fit at the other end of the threaded sleeve, one end, deviating from the threaded sleeve (411), of the screw rod (412) is rotatably connected with the pressing piece (42), and a flange rotating disc (413) coaxial with the screw rod (412) is fixedly mounted on the screw rod (412) close to a rod body of the pressing piece (42).

4. The pretreatment machining device for butt welding and welding ends of composite plates according to claim 2, wherein: the telescopic device (41) is an air cylinder, a hydraulic cylinder or an electric cylinder.

5. The pretreatment machining device for butt-welded ends of composite plates according to any one of claims 2 to 4, wherein: the lower end face of the pressing piece (42) is provided with a protective pad.

6. The pretreatment machining device for butt welding and welding ends of composite plates according to claim 1, wherein: the feeding and discharging mechanism (7) comprises a feeding and discharging assembly, the feeding and discharging assembly comprises a lifting table (71) and a support (72), the support (72) is arranged on the upper table surface of the lifting table (71), a plurality of first conveying rollers (73) are uniformly arranged on the upper end surface of the support (72) at intervals along the width direction of the upper table surface of the workbench (1), and the central axis direction of the first conveying rollers (73) is parallel to the length direction of the upper table surface of the workbench (1); the lifting platform (71) is provided with a second driving device for driving all the first conveying rollers (73) to synchronously roll in the same direction.

7. The pretreatment machining device for butt welding and welding ends of composite plates according to claim 1, wherein: the feeding and discharging mechanism (7) comprises a feeding and discharging assembly, the feeding and discharging assembly comprises a lifting platform (71) and supports (72), a plurality of supports (72) are uniformly arranged on the upper table surface of the lifting platform (71) at intervals along the length direction of the upper table surface of the workbench (1), a plurality of first conveying rollers (73) are uniformly arranged on the upper end surface of each support (72) at intervals along the width direction of the upper table surface of the workbench (1), and the central axis direction of the first conveying rollers (73) is parallel to the length direction of the upper table surface of the workbench (1); the lifting platform (71) is provided with a second driving device which is used for driving all the first conveying rollers (73) to synchronously roll in the same direction.

8. The pretreatment machining device for butt welding and welding ends of composite plates according to claim 7, wherein: go up unloading mechanism (7) and still include conveying assembly, conveying assembly includes mounting bracket (74), second conveying roller (75), the inboard position that corresponds workstation (1) of mounting bracket (74) is equipped with elevating platform (71), and mounting bracket (74) upper end is uncovered, mounting bracket (74) upper portion face is equipped with second conveying roller (75) that the top height is less than the mesa height on workstation (1) along the even interval of mesa length direction on workstation (1), and second conveying roller (75) central axis direction is parallel with mesa width direction on workstation (1), and correspond second conveying roller (75) that are located elevating platform (71) top and support (72) and alternate and the interval setting, mounting bracket (74) still are equipped with and are used for driving all second conveying roller (75) synchronous and with rolling third drive arrangement.

9. The pretreatment machining device for butt welding and welding ends of composite plates according to claim 1, wherein: the upper end of the swing frame (8) is correspondingly hinged with the rear side surface of the closed end of the N-shaped frame (2), and the lower end of the swing frame (8) is provided with a stop curtain (9); the N-shaped frame (2) is also provided with a fourth driving device (10) capable of driving the swing frame (8) to rotate.

10. The pretreatment machining device for butt welding and welding ends of composite plates according to claim 1, wherein: a collecting box (11) for collecting the processing scraps is arranged below the processing equipment (6).