CN216178348U

CN216178348U - Drilling, milling and scribing combined machining center for door and window aluminum profiles

Info

Publication number: CN216178348U
Application number: CN202122475827.6U
Authority: CN
Inventors: 李志刚; 张守宪; 李祥肖; 薛晓乾; 何平
Original assignee: Jinan Kaizhiyue Machinery Co ltd
Current assignee: Jinan Kaizhiyue Machinery Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-04-05
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses a composite machining center for drilling, milling and scribing aluminum profiles of doors and windows, which comprises a base, an upright post, a cross beam, a sliding plate, a main electric spindle, a side power head group, a laser scribing device, a mechanical arm clamping jaw device, a servo clamp device, a tool magazine unit, a three-direction tool setting device, a workpiece origin measuring device, an outer protection device, an upright post protection body, a lifting protection door, a chain type chip removal system, a servo driving device and a control system. The device has the remarkable characteristics of compositing, automation, intellectualization and the like, has the advantages of reliable performance, process integration, convenient maintenance and the like, and is ideal equipment for processing aluminum door and window profiles.

Description

Drilling, milling and scribing combined machining center for door and window aluminum profiles

Technical Field

The utility model particularly relates to a drilling, milling and scribing combined machining center for door and window aluminum profiles.

Background

The prior art situation is as follows: at present, the processing procedures of a lock hole, a handle hole, a hardware notch, a glue injection hole, an angle code mounting hole, a mullion mounting hole, a water leakage hole, a frame body mounting hole, a mullion end face rabbet, a mullion connecting piece hole and the like of an aluminum door and window profile are processed by using equipment such as single-set profiling milling, a processing center, a multi-station pneumatic punching machine, a multi-head drill, an end face milling and the like in a manner of manual feeding and discharging and tool positioning, and the defects of high labor intensity of workers, poor product quality consistency, low production efficiency and the like exist; or the material is processed by adopting a single-set processing center, a numerical control punch press, a numerical control drilling machine, a tenoning and milling machine and other equipment in a logistics line sorting, robot or manual loading and unloading mode, and a plurality of adverse factors such as large investment, large occupied area and the like exist. The former has low equipment numerical control rate and poor information intercommunication capability, and the latter has high investment, wide occupied area and high requirement on the capability of key post personnel, and the excessive equipment cost investment is an insurmountable gap for door and window production enterprises with small scale. The assembly of the frame body and the mullion piece is completed on a door and window assembly line in the traditional process, the installation position needs to be manually measured, and the time and the efficiency are low; in recent years, along with the improvement of the requirements of customer groups, a numerical control laser scribing machine appears on the market, the problem is well solved, and the production efficiency is greatly improved; however, the numerical control laser scribing machine as an independent machine tool has the disadvantages of wide occupied area, large investment and single process, and is often matched with a joint robot to realize the loading and unloading actions, so that the input-output ratio is extremely inappropriate. In order to improve the situation, the utility model provides a drilling, milling and scribing combined machining center for door and window aluminum profiles.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model aims to provide a composite machining center for drilling, milling and scribing aluminum profiles of doors and windows, which comprises a base and a control system, wherein an upright post is loaded on the base and can horizontally move on the base, a cross beam capable of vertically moving is arranged on the upright post, a sliding plate capable of horizontally moving is arranged on the cross beam, the moving direction of the sliding plate is perpendicular to that of the upright post, a main spindle is arranged on the sliding plate, namely the main spindle can axially move in three directions on a three-axis coordinate system, a side power head group is arranged below the main spindle of the upright post, and a servo clamp device, a tool magazine unit, a three-direction tool setting device and a workpiece origin measuring device which are matched with the main spindle and the side power head group are also loaded on the base.

Preferably, the side power head group comprises a lower dragging plate, the lower dragging plate is arranged on the upright column and driven by a servo driving device to move up and down, a lower sliding plate capable of moving horizontally is arranged on the lower dragging plate, the lower sliding plate is driven by a screw rod driven by a servo motor to move, the moving direction of the lower sliding plate is perpendicular to the moving direction of the upright column, a transposition cylinder is arranged on the lower sliding plate, an output shaft of the transposition cylinder is connected with and drives the sliding plate, the sliding plate is arranged on the lower sliding plate and can move, the moving direction of the sliding plate is the same as the moving direction of the lower sliding plate, a side electric spindle is arranged on the sliding plate, and at least one group of the transposition cylinder, the sliding plate and the side electric spindle is arranged on the lower sliding plate.

Preferably, the slide plate is further provided with a laser scribing device, the laser scribing device comprises a laser generator and a connecting plate, a slider mounting seat is arranged and fixed on the slide plate, the connecting plate is movably mounted on the slider mounting seat through a linear guide rail and a slider mounting mode, a laser output head is arranged and mounted on the connecting plate, a scribing transposition cylinder is mounted on the slider mounting seat, an output shaft of the scribing transposition cylinder is connected onto the connecting plate, the transposition cylinder stretches and retracts to drive the connecting plate to move up and down and then drive the laser output head to move up and down, an output shaft of the scribing transposition cylinder faces downwards vertically, and the laser output head rotates through an output shaft connected with a servo motor.

Preferably, a manipulator clamping jaw device is arranged behind the upright column, the manipulator clamping jaw device is fixed to the upright column and moves synchronously with the upright column, the manipulator clamping jaw device comprises a fixed plate, the fixed plate is fixedly connected with the upright column, a ram beam is arranged on the fixed plate and driven by a servo drive motor and can move on the fixed plate, the moving direction of the ram beam is the same as that of a sliding plate, a transition sliding frame is arranged at one end of the ram beam, a vertical ram capable of moving vertically is arranged on the transition sliding frame, the vertical ram can also move vertically through the servo drive device, a fixed clamping jaw and an upper fixed plate are arranged below the vertical ram, a movable clamping jaw is arranged at a position, corresponding to the fixed clamping jaw, of the upper fixed plate and moves through a guide shaft in a limiting and guiding manner, and the guide shaft is perpendicular to the fixed clamping jaw, the movement of the movable clamping jaw is realized by the driving of a clamping cylinder.

Preferably, the servo fixture device comprises a fixture base, a linear guide rail is arranged on the fixture base, the direction of the linear guide rail is the same as the moving direction of the sliding plate, a movable linear guide rail slider is arranged on the linear guide rail, the linear guide rail slider is connected with a connecting plate, the connecting plate is connected with a side pressing cylinder and is driven to move by the side pressing cylinder, a side pressing mechanism is arranged above the connecting plate, a rear positioning plate is arranged on the corresponding side of the side pressing mechanism of the fixture base to realize transverse clamping of the workpiece, a lower positioning plate is arranged above the fixture base, a corresponding upper pressing device is arranged above the lower positioning plate, the upper pressing device can realize longitudinal clamping of the workpiece with the lower positioning plate through the driving movement of the upper pressing cylinder, and a side pressing mechanism telescopic cylinder is further arranged on the inner side of the connecting plate, can drive the side pressing mechanism to move up and down.

Preferably, the tool magazine unit is installed on the base and comprises a tool magazine support, the tool magazine support is fixedly connected with the base, a tool magazine beam is connected to the top of the tool magazine support, a tool magazine plate is arranged on the tool magazine beam, a plurality of tool holders are arranged on the tool magazine plate, a tool system is fixed on each tool holder, tool magazine protection opening and closing cylinders are symmetrically arranged on the tool magazine plate, and output shafts of the tool magazine protection opening and closing cylinders are connected with the tool magazine protection driving cylinders.

Preferably, the three-direction tool setting device is installed on the base and comprises a tool setting gauge base, a tool setting gauge mounting seat is fixed above the tool setting gauge base, and a tool setting gauge is arranged on the tool setting gauge mounting seat.

Preferably, work piece initial point measuring device includes and is connected fixed cylinder push pedal and horizontal linear guide with the base, cylinder push pedal fixed connection buffer cylinder's output shaft, buffer cylinder other end fixed mounting has the location slide, the location slide sets up on horizontal linear guide, and can remove through the buffer cylinder drive, the one end that buffer cylinder was kept away from to the location slide is provided with perpendicular linear guide, install the locating plate on the perpendicular linear guide, the locating plate can be through the vertical removal of locating plate lift cylinder on perpendicular linear guide.

Preferably, a chain type chip removal system is arranged below the base, an outlet of the chain type chip removal system is arranged on the outer side of the base, and outer protection is arranged on the periphery of the base.

Preferably, the upright post is provided with an upright post protection body, and one side of the upright post protection body is provided with a lifting protection door.

Compared with the prior art, the utility model has the following beneficial effects: the device is special equipment for drilling, milling grooves, milling tenon openings, laser scribing and automatic feeding and discharging of aluminum door and window profiles, and can complete three-side drilling, milling groove processing, laser multi-side scribing and mullion end face milling tenon opening processing of workpieces on the basis of one-time feeding and discharging. The device has the remarkable characteristics of compositing, automation, intellectualization and the like, has the advantages of reliable performance, process integration, convenient maintenance and the like, and is ideal equipment for processing aluminum door and window profiles. Through servo system control and cooperation of the units, automatic machining of a lock hole, a handle hole, a water leakage hole, a mounting hole, an end face rabbet and laser scribing of a workpiece is realized, and during the machining, feeding and positioning of the workpiece are automatically completed by a mechanical hand of equipment. The method has the remarkable advantages of low labor intensity, high processing precision, moderate production efficiency, flexible production and the like. The device can be assembled with a sawing center and a multi-head numerical control corner assembling line/frame fan assembling line of the front and the back working procedures to form a digitalized, visualized and networked intelligent workshop.

Drawings

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

FIG. 2 is a schematic view of the present invention with a protective case;

FIG. 3 is a schematic view of the base structure of the present invention;

FIG. 4 is a schematic view of the structure of the column of the present invention;

FIG. 5 is a schematic view of a cross beam structure according to the present invention;

FIG. 6 is a schematic view of the construction of the skateboard of the present invention;

FIG. 7 is a schematic view of a side power head assembly of the present invention;

FIG. 8 is a schematic view of a laser scribing apparatus according to the present invention;

FIG. 9 is a schematic view of a robot clamping jaw configuration of the present invention;

FIG. 10 is a schematic view of a servo chuck apparatus according to the present invention;

FIG. 11 is a schematic view of a tool magazine unit according to the present invention;

FIG. 12 is a schematic structural view of a three-direction tool setting device according to the present invention;

FIG. 13 is a schematic view of a workpiece origin measuring device according to the present invention.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings provided in the embodiments of the present invention, and it is obvious that the described embodiments are only preferred embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the preferred embodiments of the utility model without making any creative effort, shall fall within the protection scope of the utility model. The present invention is described in further detail below.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. The foregoing definitions are provided merely to facilitate description and to simplify description and are not intended to indicate or imply that the structures referred to must have a particular orientation, be constructed and operated in a particular orientation and are not to be construed as limiting the utility model.

As shown in fig. 1-13, the utility model provides a composite processing center for drilling, milling and scribing aluminum profiles for doors and windows, which comprises a base 1 and a control system 17, wherein the base 1 is provided with a stand column 2, the upright post 2 can move horizontally on the base 1, a beam 3 which can move vertically is arranged on the upright post 2, a sliding plate 4 capable of moving horizontally is arranged on the cross beam 3, the moving direction of the sliding plate 4 is vertical to the moving direction of the upright post 2, a main electric spindle 5 is arranged on the sliding plate 4, namely, the main electric spindle 5 can realize axial movement in three directions on a three-axis coordinate system, the upright post 2 is provided with a side power head group 6 at the lower position of the main electric spindle 5, the base 1 is also provided with a servo clamp device 9, a tool magazine unit 10, a three-direction tool setting device 11 and a workpiece origin measuring device 12 which are matched with the main electric spindle 5 and the side power head group 6.

The side power head group 6 comprises a lower dragging plate 6-1, the lower dragging plate 6-1 is arranged on an upright post 2 and driven to move up and down by a servo driving device, a lower sliding plate 6-2 capable of moving horizontally is arranged on the lower dragging plate 6-1, the lower sliding plate 6-2 is driven to move by a screw rod driven by a servo motor, the moving direction of the lower sliding plate 6-2 is vertical to the moving direction of the upright post 2, a transposition cylinder 6-3 is arranged on the lower sliding plate 6-2, an output shaft of the transposition cylinder 6-3 is connected with and drives a sliding plate 6-4, the sliding plate 6-4 is arranged on the lower sliding plate 6-2 and can move, the moving direction is the same as that of the lower sliding plate 6-2, and a side electric spindle 6-5 is arranged on the sliding plate 6-4, at least one group of transposition air cylinders 6-3, sliding plates 6-4 and side electric spindles 6-5 is arranged on the lower sliding plate 6-2.

The sliding plate 4 is also provided with a laser scribing device 7, the laser scribing device 7 comprises a laser generator 7-1 and a connecting plate 7-3, a slider mounting seat 7-2 is arranged and fixed on the sliding plate 4, the connecting plate 7-3 is movably mounted on the slider mounting seat 7-2 through a linear guide rail and a slider mounting mode, a laser output head 7-5 is arranged and mounted on the connecting plate 7-3, a scribing transposition cylinder 7-4 is mounted on the slider mounting seat 7-2, an output shaft of the scribing transposition cylinder 7-4 is connected on the connecting plate 7-3, the transposition cylinder 7-4 is telescopic to drive the connecting plate 7-3 to move up and down so as to drive the laser output head 7-5 to move up and down, the output shaft of the scribing transposition air cylinder 7-4 is vertically downward, and the laser output head 7-5 is connected with the output shaft of the servo motor to realize rotation.

The manipulator clamping jaw device 8 is arranged behind the upright column 2, the manipulator clamping jaw device 8 and the upright column 2 are fixed and move synchronously, the manipulator clamping jaw device 8 comprises a fixed plate 8-1, the fixed plate 8-1 is fixedly connected with the upright column 2, a ram beam 8-2 is arranged on the fixed plate 8-1, the ram beam 8-2 can move on the fixed plate 8-1 through being driven by a servo driving motor, the moving direction of the ram beam is the same as that of the slide plate 4, a transition sliding frame 8-3 is arranged at one end of the ram beam 8-2, a vertical ram 8-4 capable of moving vertically is arranged on the transition sliding frame 8-3, the vertical ram 8-4 can also move vertically through a servo driving device, a fixed clamping jaw 8-5 and an upper fixed plate 8-8 are arranged below the vertical ram 8-4, the upper fixing plate 8-8 is provided with a movable clamping jaw 8-6 at a position corresponding to the fixed clamping jaw 8-5, the movable clamping jaw 8-6 is limited and guided to move through a guide shaft 8-9, the guide shaft 8-9 is perpendicular to the fixed clamping jaw 8-5, and the movement of the movable clamping jaw 8-6 is realized through the driving of a clamping cylinder 8-7.

The servo clamp device 9 comprises a clamp seat 9-1, a linear guide rail is arranged on the clamp seat 9-1, the direction of the linear guide rail is the same as the moving direction of the sliding plate 4, a movable linear guide rail sliding block 9-2 is arranged on the linear guide rail, the linear guide rail sliding block 9-2 is connected with a connecting plate 9-4, the connecting plate 9-4 is connected with a side pressing cylinder 9-3 and is driven to move by the side pressing cylinder 9-3, a side pressing mechanism 9-5 is arranged above the connecting plate 9-4, a rear positioning plate 9-8 is arranged on the clamp seat 9-1 at the corresponding side of the side pressing mechanism 9-5 to realize the transverse clamping of a workpiece, a lower positioning plate 9-7 is arranged above the clamp seat 9-1, the upper side of the lower positioning plate 9-7 is provided with a corresponding upper pressing device 9-9, the upper pressing device 9-9 can be driven by an upper pressing cylinder 9-10 to move so as to realize longitudinal clamping on a workpiece with the lower positioning plate 9-7, and the inner side of the connecting plate 9-4 is also provided with a side pressing mechanism telescopic cylinder 9-6 which can drive the side pressing mechanism 9-5 to move up and down.

The tool magazine unit 10 is installed on the base 1 and comprises a tool magazine support 10-1, the tool magazine support 10-1 is fixedly connected with the base 1, a tool magazine beam 10-2 is connected above the tool magazine support 10-1, a tool magazine plate 10-3 is arranged on the tool magazine beam 10-2, a plurality of tool holders 10-4 are arranged on the tool magazine plate 10-3, a tool system 10-5 is fixed on the tool holders 10-4, tool magazine protection opening and closing cylinders 10-6 are symmetrically arranged on the tool magazine plate 10-3, and output shafts of the tool magazine protection opening and closing cylinders 10-6 are connected with driving tool magazine protection 10-7.

The three-direction tool setting device 11 is installed on the base 1 and comprises a tool setting gauge base 11-1, a tool setting gauge installation seat 11-2 is fixed above the tool setting gauge base 11-1, and a tool setting gauge 11-3 is arranged on the tool setting gauge installation seat 11-2.

The workpiece origin measuring device 12 comprises a cylinder push plate 12-1 and a horizontal linear guide rail 12-4 which are fixedly connected with the base 1, the cylinder push plate 12-1 is fixedly connected with an output shaft of the buffer cylinder 12-2, the other end of the buffer cylinder 12-2 is fixedly provided with a positioning sliding seat 12-3, the positioning sliding seat 12-3 is arranged on a horizontal linear guide rail 12-4, and can be driven to move by a buffer cylinder 12-2, one end of the positioning sliding seat 12-3 far away from the buffer cylinder 12-2 is provided with a vertical linear guide rail 12-5, and a positioning plate 12-6 is arranged on the vertical linear guide rail 12-5, and the positioning plate 12-6 can vertically move on the vertical linear guide rail 12-5 through a positioning plate lifting cylinder 12-7.

The below of base 1 is provided with chain chip removal system 16, the export setting of chain chip removal system 16 is in the outside of base 1, base 1 is provided with outer protection 13 all around.

The upright post 2 is provided with an upright post protection body 14, and one side of the upright post protection body 14 is provided with a lifting protection door 15.

The section structure of the aluminum door and window section is complex and changeable, the section lengths are different, and the processing procedures are various. According to different positions of workpieces on the door and window frame, the size and the position of a lock hole to be processed, the size and the position of a handle hole, the size, the number and the position of a water leakage hole, the size, the number and the position of a mounting hole, the position of a glue injection hole, the size and the position of an angle code mounting hole, the shape of a rabbet on the end surface of a section bar, the mounting position of a atrium and the like are different; some have drilling process, some have milling process, some have drilling and milling, the shape of work piece terminal surface also changes very much, this has brought very big degree of difficulty for the automatic scheduling of work piece, processing. The equipment is provided with CAM software, and can complete the programming task of a processing program on line or off line through upper computer software; the servo clamp position can be automatically set according to the length of a workpiece and the content of a machining process by self-provided clamp optimization software; the equipment is provided with three sets of electric spindles, laser scribing devices and automatic feeding and discharging manipulators, and the multifunctional, complex and changeable processing technology can be basically completed on the equipment, and the logistics turnover of feeding, positioning and discharging of workpieces can be automatically realized.

The device has the use principle that: the device comprises a base 1 and a control system 17, wherein the base 1 is loaded with a stand column 2, the stand column 2 can horizontally move on the base 1, the stand column 2 is provided with a cross beam 3 capable of vertically moving, the cross beam 3 is provided with a sliding plate 4 capable of horizontally moving, the moving direction of the sliding plate 4 is perpendicular to that of the stand column 2, the sliding plate 4 is provided with a main spindle 5, namely the main spindle 5 can axially move in three directions on a three-axis coordinate system, the stand column 2 is provided with a side power head group 6 below the main spindle 5, the base 1 is also loaded with a servo clamp device 9, a tool magazine unit 10, a three-direction tool setting device 11 and a workpiece origin measuring device 12 which are matched with the main spindle 5 and the side power head group 6 for use, so as to machine a workpiece by the main spindle 5, the processing procedure is the conventional processing mode of triaxial, and the processing mode of side power head group 6 is in conventional processing, replace main electric main shaft 5 to process, aluminium alloy door and window part processing content is various, the demand is great to the cutter kind, if only with main electric main shaft and tool magazine, can reduce production efficiency by a wide margin at the frequent tool changing of processing procedure, and the processing content of locating surface behind the aluminium alloy, work load is big but only need 2 kinds of cutters just can suffice basically, consequently side power head group 6 can effectively improve the efficiency of equipment, and this device has the laser marking function concurrently. In the actual assembly of the mullion piece, the specific installation position of the mullion needs to be determined in a manual field tape measure or material object comparison mode, the time and efficiency are low, and operators need to run frequently; in recent years, along with the improvement of the requirements of customer groups, a numerical control laser scribing machine appears on the market, the problem is well solved, and the production efficiency is greatly improved; however, the numerical control laser scribing machine is used as an independent machine tool, the occupied area is wide, the investment is large, the process is single, the feeding and discharging actions are often realized by matching with a joint robot, the input-output ratio is extremely inappropriate, the laser scribing device 7 disclosed by the device can effectively solve the problems, and the cost has great advantage compared with the existing equipment, a manipulator clamping jaw device 8 arranged behind an upright post 2 can move along with the upright post 2 after the upright post 2 is fixed by a fixing plate 8-1, and a servo driving device drives a ram beam 8-2 to move; the transition sliding frame 8-3 is fixed at one end of the ram beam 8-2 far away from the fixed plate 8-1 and stretches along with the ram beam 8-2; the vertical ram 8-4 moves in the up-and-down direction on the transition carriage 8-3 under the action of the servo driving device; the fixed clamping jaw 8-5 is fixed at the lower end of the vertical ram 8-4 through the upper fixing plate 8-8, the movable clamping jaw 8-6 moves along the guide shaft 8-9 fixed on the upper fixing plate 8-8 under the action of the clamping cylinder 8-7 to clamp and loosen a workpiece, the existing joint robot can be replaced, the cost is further reduced, the equipment advantage is improved, the servo clamp device 9 can automatically complete positioning and clamping of the workpiece, the problem of production efficiency reduction caused by interference of a cutter and a clamp can be avoided in the machining process, the tool changing function and the scrap transporting function of a conventional machining center are provided, the machining operation can be completely completed, the protection function is provided, and the machining center is promising.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a door and window aluminium alloy bores and mills, rule combined machining center, a serial communication port, including base and control system, bear the stand on the base, just the stand can be on the base horizontal migration, be provided with the crossbeam that can vertical migration on the stand, be provided with the slide that can horizontal migration on the crossbeam, the moving direction of slide is perpendicular with the moving direction of stand, be provided with main electric main shaft on the slide, promptly three direction axial displacement on three axis coordinate system can be realized to main electric main shaft, the stand is provided with side power head group in main electric main shaft's below position, still bear on the base with servo fixture device, tool magazine unit, three direction tool setting devices and the original point measuring device of work piece that main electric main shaft and side power head group cooperation were used.

2. The door and window aluminum profile drilling, milling and scribing combined machining center according to claim 1, wherein the side power head group comprises a lower dragging plate, the lower dragging plate is arranged on a stand column and driven to move up and down by a servo driving device, a lower sliding plate capable of moving horizontally is arranged on the lower dragging plate, the lower sliding plate is driven to move by a screw rod driven by a servo motor, the moving direction of the lower sliding plate is perpendicular to the moving direction of the stand column, a transposition cylinder is arranged on the lower sliding plate, an output shaft of the transposition cylinder is connected with and drives the sliding plate, the sliding plate is arranged on the lower sliding plate and can move, the moving direction of the sliding plate is the same as the moving direction of the lower sliding plate, a side electric spindle is arranged on the sliding plate, and at least one group of the transposition cylinder, the sliding plate and the side electric spindle is arranged on the lower sliding plate.

3. The door and window aluminum profile drilling, milling and scribing combined machining center according to claim 1, wherein a laser scribing device is further arranged on the sliding plate, the laser scribing device comprises a laser generator and a connecting plate, a slider mounting seat is arranged and fixed on the sliding plate, the connecting plate is movably mounted on the slider mounting seat through a linear guide rail and a slider mounting mode, a laser output head is arranged and mounted on the connecting plate, a scribing transposition cylinder is mounted on the slider mounting seat, an output shaft of the scribing transposition cylinder is connected to the connecting plate, the transposition cylinder stretches and retracts to drive the connecting plate to move up and down and then drive the laser output head to move up and down, an output shaft of the scribing transposition cylinder faces downward vertically, and the laser output head is rotated through an output shaft connected with a servo motor.

4. The combined machining center for drilling, milling and scribing door and window aluminum profiles as claimed in claim 1, wherein a mechanical arm clamping jaw device is arranged behind the upright, the mechanical arm clamping jaw device is fixed with the upright and moves synchronously, the mechanical arm clamping jaw device comprises a fixed plate, the fixed plate is connected and fixed with the upright, a ram beam is arranged on the fixed plate, the ram beam can move on the fixed plate through being driven by a servo drive motor, the moving direction of the ram beam is the same as that of a sliding plate, one end of the ram beam is provided with a transition carriage, a vertical ram capable of moving vertically is arranged on the transition carriage, the vertical ram can also move vertically through a servo drive device, a fixed clamping jaw and an upper fixed plate are arranged below the vertical ram, and a movable clamping jaw is arranged at a position corresponding to the fixed clamping jaw on the upper fixed plate, the movable clamping jaw moves through the limiting and guiding of the guide shaft, the guide shaft is perpendicular to the fixed clamping jaw, and the movable clamping jaw moves through the driving of the clamping cylinder.

5. The combined machining center for drilling, milling and scribing door and window aluminum profiles as claimed in claim 1, wherein the servo fixture device comprises a fixture base, the fixture base is provided with a linear guide rail, the linear guide rail has the same direction as the sliding plate, the linear guide rail is provided with a movable linear guide rail slider, the linear guide rail slider is connected with a connecting plate, the connecting plate is connected with a side pressing cylinder and is driven to move by the side pressing cylinder, a side pressing mechanism is arranged above the connecting plate, the fixture base is provided with a rear positioning plate at the corresponding side of the side pressing mechanism to realize transverse clamping of a workpiece, a lower positioning plate is arranged above the fixture base, a corresponding upper pressing device is arranged above the lower positioning plate, the upper pressing device can realize longitudinal clamping of the workpiece with the lower positioning plate through driving movement of the upper pressing cylinder, the inner side of the connecting plate is also provided with a side pressing mechanism telescopic cylinder which can drive the side pressing mechanism to move up and down.

6. The door and window aluminum profile drilling, milling and scribing combined machining center as claimed in claim 1, wherein the tool magazine unit is mounted on the base and comprises a tool magazine support, the tool magazine support is fixedly connected with the base, a tool magazine beam is connected above the tool magazine support, a tool magazine plate is arranged on the tool magazine beam, a plurality of tool holders are arranged on the tool magazine plate, a tool system is fixed on each tool holder, tool magazine protection opening and closing cylinders are symmetrically arranged on the tool magazine plate, and output shafts of the tool magazine protection opening and closing cylinders are connected with the tool magazine protection driving cylinders.

7. The combined machining center for drilling, milling and scribing of door and window aluminum profiles as claimed in claim 1, wherein the three-direction tool setting device is mounted on a base and comprises a tool setting gauge base, a tool setting gauge mounting seat is fixed above the tool setting gauge base, and a tool setting gauge is arranged on the tool setting gauge mounting seat.

8. The door and window aluminum profile drilling, milling and scribing combined machining center according to claim 1, wherein the workpiece origin measuring device comprises a cylinder push plate and a horizontal linear guide rail which are fixedly connected with a base, the cylinder push plate is fixedly connected with an output shaft of a buffer cylinder, a positioning slide seat is fixedly mounted at the other end of the buffer cylinder, the positioning slide seat is arranged on the horizontal linear guide rail and can be driven to move through the buffer cylinder, a vertical linear guide rail is arranged at one end of the positioning slide seat, which is far away from the buffer cylinder, a positioning plate is mounted on the vertical linear guide rail, and the positioning plate can vertically move on the vertical linear guide rail through a positioning plate lifting cylinder.

9. The door and window aluminum profile drilling, milling and scribing combined machining center according to claim 1, wherein a chain type chip removal system is arranged below the base, an outlet of the chain type chip removal system is arranged on the outer side of the base, and outer protection is arranged around the base.

10. The door and window aluminum profile drilling, milling and scribing combined machining center according to claim 1, wherein an upright post protection body is arranged at the upright post, and a lifting protection door is arranged on one side of the upright post protection body.