CN216990029U

CN216990029U - Laser scanning section bar terminal surface reciprocating milling cuts numerical control end surface milling machine

Info

Publication number: CN216990029U
Application number: CN202220494765.5U
Authority: CN
Inventors: 刘洋
Original assignee: Shandong Mingmei Cnc Machinery Co ltd
Current assignee: Shandong Mingmei Cnc Machinery Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-07-19
Anticipated expiration: 2032-03-09

Abstract

The utility model relates to the technical field of aluminum alloy door and window equipment, and particularly discloses a laser scanning section bar end face reciprocating milling numerical control end face milling machine which comprises a reciprocating milling device, a laser scanning device and a section bar pressing device, wherein the reciprocating milling device is provided with a rack, a workbench, an X-axis movement mechanism, a Y-axis movement mechanism, a Z-axis movement mechanism and a turnover mechanism, and an upper spindle motor and a lower spindle motor are matched for milling the section bar; the laser scanning device is arranged at the front part of the workbench and is provided with a lifting mechanism and a laser sensor, and the laser sensor is arranged on the lifting mechanism and is used for scanning the section bar and then uploading the section bar to the control system; the profile pressing device is arranged in the middle of the workbench and is provided with a pressing cylinder and a workbench pressing plate for positioning the profile; the end face of the sectional material is milled in a reciprocating mode, the efficiency of cutting the end face of the sectional material is improved, the milling speed is high, the automation degree of the whole process is high, the production efficiency is high, and the labor cost is low.

Description

Laser scanning section bar terminal surface reciprocating milling cuts numerical control end surface milling machine

Technical Field

The utility model relates to the technical field of aluminum alloy door and window equipment, in particular to a laser scanning type numerical control end face milling machine for reciprocating milling of end faces of sectional materials.

Background

At present, the milling and cutting industry of the end face of the aluminum profile in China mainly adopts a numerical control end face milling machine to carry out unidirectional milling after manually measuring the end face of the profile and manually writing the size of the end face. The error generated by manually measuring the end face is large, the manual writing speed is slow, and the efficiency is low; the direction milling idle running stroke efficiency of the numerical control end milling machine is low, and the processing speed cannot be improved to the maximum extent. Therefore, the design of a laser scanning section bar end face reciprocating milling numerical control end face milling machine is urgently needed to solve the problems of low production efficiency caused by high manual operation cost and low automation degree of the existing section bar end face milling.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide a laser scanning type numerical control end face milling machine for reciprocating milling of end faces of sectional materials.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a laser scanning section end face reciprocating milling numerical control end face milling machine comprises a reciprocating milling device, a laser scanning device and a section pressing device, wherein the reciprocating milling device is provided with a rack, a workbench, an X-axis movement mechanism, a Y-axis movement mechanism, a Z-axis movement mechanism and a turnover mechanism;

the laser scanning device is arranged at the front part of the workbench and is provided with a lifting mechanism and a laser sensor, and the laser sensor is arranged on the lifting mechanism and is used for scanning the section bar and then uploading the section bar to the control system;

the section pressing device is installed in the middle of the workbench and provided with a pressing cylinder and a workbench pressing plate and used for positioning the section.

The X-axis movement mechanism comprises a rack guide rail, a rack, an X-axis original point coordinate, an X-axis line groove, a sliding table slider, an upright sliding table and a gear rack conveying system, two rack guide rails are arranged on the rack, the rack is arranged on a side beam behind the rack, dust cover supports are arranged on two sides of the rack, the X-axis original point coordinate and the X-axis line groove are arranged on the rear side of the rack, the sliding table slider is arranged on the rack guide rail, the upright sliding table is arranged on the sliding table slider, the gear rack conveying system is arranged on the rear right side of the upright sliding table and meshed with the rack, and is used for left-right transmission in the X-axis direction, and the sliding table guide rail is fixed on the upright sliding table.

The Y-axis motion mechanism comprises a Y-axis ball screw transmission system, an X-axis drag chain support, a Y-axis origin coordinate, an upright column sliding block, an upright column base, a Y-direction ball screw nut seat, a ball screw nut, an upright column and an upright column guide rail, wherein the Y-axis ball screw transmission system is installed in the center of the upright column sliding table, the X-axis drag chain support is installed on the left rear side of the upright column sliding table, and the Y-axis origin coordinate is installed on the left side of the upright column sliding table; the sliding table guide rail is provided with an upright column sliding block, an upright column base is arranged on the upright column sliding block, a Y-direction ball screw nut seat is fixed at the bottom of the upright column base, a ball screw nut is arranged in the Y-direction ball screw nut seat and matched with a Y-axis ball screw transmission system for front-back transmission in the Y-axis direction, an upright column is fixed on the upright column base, and an upright column guide rail is arranged on the left side surface of the upright column in parallel.

The Z-axis motion mechanism comprises a positioning support seat, a positioning frame, a Z-axis ball screw transmission system, a Z-axis origin coordinate, a Z-axis wire groove, a Z-axis sliding block, a Z-axis sliding plate, a Z-axis ball screw nut seat, a ball screw nut, an upper spindle seat, an upper spindle motor, an upper milling cutter, a lower spindle seat, a rotary support bearing, a rotary table connecting seat, a spindle motor plate, a lower spindle motor and a lower milling cutter, wherein the positioning support seat is fixed in front of the upright post, the positioning frame is installed on the positioning support seat, the Z-axis ball screw transmission system is installed on the left side surface of the upright post, the Z-axis origin coordinate is installed on the upper part of the front vertical surface of the upright post, and the Z-axis groove fixes the rear vertical surface of the upright post; the Z-axis sliding block is mounted on the upright column guide rail, the Z-axis sliding plate is mounted on the Z-axis sliding block, a Z-axis ball screw nut seat is mounted on the inner side surface of the Z-axis sliding plate, a ball screw nut is mounted in the Z-axis ball screw nut seat and matched with a Z-axis ball screw transmission system for Z-direction transmission, an upper spindle seat is mounted on the upper portion of the outer vertical surface of the Z-axis sliding plate, an upper spindle motor is mounted on the upper spindle seat, an upper milling cutter is mounted on the upper spindle motor, a lower spindle seat is fixed on the lower portion of the outer vertical surface of the Z-axis sliding plate, a rotary supporting bearing is fixed on the lower spindle seat and used for overturning of a lower spindle motor, a rotary table connecting seat is mounted on the outer side of the rotary supporting bearing, a spindle motor plate is mounted on a rotary table connecting seat, the lower spindle motor is mounted on a spindle motor plate, and the lower milling cutter is mounted on the lower spindle motor.

The turnover mechanism comprises a turnover cylinder cushion block, a turnover cylinder support, a turnover cylinder, a fisheye joint, an upper swing angle positioning device and a lower swing angle positioning device, wherein the turnover cylinder cushion block is fixed on the outer vertical surface of the Z-axis sliding plate, the turnover cylinder support is installed on the turnover cylinder cushion block, the turnover cylinder is installed in the turnover cylinder support and used for realizing the turnover of a lower spindle motor by 0-90 degrees through the connection of the fisheye joint and a spindle motor plate, the upper swing angle positioning device is installed on a lower spindle seat, the lower swing angle positioning device is installed on the spindle motor plate and the upper swing angle positioning device to control the swing angle, and a Z-axis drag chain support is installed on the rear vertical surface of the Z-axis sliding plate.

Specifically, the laser scanning device comprises a scanning bracket, a scanning bracket guide rail, a ball screw transmission system, a stepping motor, a screw nut support, a screw nut, a slider bracket, a slider, a laser sensor mounting seat, a laser sensor and a proximity switch; the scanning support is fixedly installed on the left front side of the workbench, the scanning support guide rail is installed on the scanning support, the ball screw transmission system is fixed on the scanning support, the stepping motor is installed on the ball screw transmission system, the screw nut support is connected with the sliding block support, the scanning support guide rail is installed on the sliding block, the screw nut is installed in the screw nut support and matched with the ball screw transmission system to realize up-down transmission, the laser sensor installation seat is installed on the sliding block support, the laser sensor is fixed on the laser sensor installation seat, up-down movement is realized through the ball screw transmission system, the profile end face is scanned and then transmitted to the control system, and the proximity switch is fixed at the bottom of the scanning support to control the negative limit stroke of the screw nut support.

The section pressing device comprises a workbench bottom plate, a workbench stay bar, a workbench upper plate, a pressing cylinder, a workbench pressing plate, a workbench flange, a linear bearing, a workbench rib plate, a polyurethane pressing plate and a section baffle plate; the utility model discloses a workstation bracing piece, the workstation bracing piece is installed on the workstation, the workstation upper plate is fixed on the workstation bracing piece, it is connected with the workstation clamp plate through the workstation flange to compress tightly the cylinder and install on the workstation upper plate, the workstation clamp plate passes through linear bearing and is connected with the workstation bracing piece, the workstation clamp plate slides on the workstation bracing piece through compressing tightly the cylinder and realizes compressing tightly, loosen the function, the workstation gusset is installed on the workstation clamp plate, the polyurethane clamp plate is fixed on the workstation gusset, the section bar baffle is installed in workstation bottom plate both sides.

The utility model has the following beneficial effects:

the laser scanning section end face reciprocating milling numerical control end face milling machine designed by the utility model finishes the whole process of milling and cutting the end face of the aluminum alloy section, scans the end face of the section, mills and cuts the end face of the section in a reciprocating manner, improves the efficiency of cutting the end face of the section, changes the return lost in the end face milling process, and ensures that the production process is smoother and the efficiency is higher; the numerical control end face milling machine can achieve the functions of forward milling and backward milling of the end face of the section and cutting of the vertical cutter, is high in scanning precision, high in milling speed, high in automation degree of the whole process, high in production efficiency and low in labor cost.

Drawings

FIG. 1 is a front view of a laser scanning type numerical control face milling machine for reciprocating milling of the end face of a section bar.

FIG. 2 is a top view of a laser scanning type section end face reciprocating milling numerical control end face milling machine.

Fig. 3 is a front view of the reciprocating milling apparatus.

Fig. 4 is a left side view of the reciprocating milling apparatus.

Fig. 5 is a front view of the laser scanning apparatus.

Fig. 6 is a right side view of the laser scanning apparatus.

Fig. 7 is a front view of the profile hold-down device.

Fig. 8 is a left side view of the profile hold-down device.

In the figure: 100-reciprocating milling device, 101-frame, 102-workbench, 103-frame guide rail, 104-frame rack, 105-dust cover bracket, 106-X axis origin coordinate, 107-X axis line groove, 108-sliding table slider, 109-upright column sliding table, 110-gear rack transmission system, 111-sliding table guide rail, 112-Y axis ball screw transmission system, 113-X axis drag chain bracket, 114-Y axis origin coordinate, 115-upright column slider, 116-upright column base, 117-Y axis ball screw nut base, 118-ball screw nut, 119-upright column, 120-upright column guide rail, 121-positioning bracket base, 122-positioning frame, 123-Z axis ball screw transmission system, 124-Z axis origin coordinate, 125-Z axis line groove, 126-Z-axis sliding block, 127-Z-axis sliding plate, 128-Z-axis ball screw nut seat, 129-ball screw nut, 130-upper spindle seat, 131-upper spindle motor, 132-upper milling cutter, 133-lower spindle seat, 134-rotary support bearing, 135-rotary table connecting seat, 136-spindle motor plate, 137-lower spindle motor, 138-lower milling cutter, 139-turnover cylinder cushion block, 140-turnover cylinder bracket, 141-turnover cylinder, 142-fisheye joint, 143-upper positioning of swing angle and 144-lower positioning of swing angle;

200-laser scanning device, 201-scanning bracket, 202-scanning bracket guide rail, 203-ball screw transmission system, 204-stepping motor, 205-screw nut support, 206-screw nut, 207-slider bracket, 208-slider, 209-laser sensor mounting seat, 210-laser sensor, 211-proximity switch;

300-section pressing device, 301-workbench bottom plate, 302-workbench stay bar, 303-workbench upper plate, 304-pressing cylinder, 305-workbench pressing plate, 306-workbench flange, 307-linear bearing, 308-workbench rib plate, 309-polyurethane pressing plate and 310-section baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely further described in detail below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

As shown in fig. 1-8, a laser scanning numerical control end face milling machine for end face reciprocating milling of a section bar comprises a 100 reciprocating milling device, a 200 laser scanning device and a 300 section bar pressing device.

The reciprocating milling device 100 includes a frame 101, a table 102, a frame guide 103, a frame rack 104, a dust cover bracket 105, an X-axis origin coordinate 106, an X-axis groove 107, a slide block 108, a column slide 109, a rack and pinion transmission system 110, a slide guide 111, a Y-axis ball screw transmission system 112, an X-axis drag chain bracket 113, a Y-axis origin coordinate 114, a column slide block 115, a column base 116, a Y-axis ball screw nut holder 117, a ball screw nut 118, a column 119, a column guide 120, a positioning bracket holder 121, a positioning bracket 122, a Z-axis ball screw transmission system 123, a Z-axis origin coordinate 124, a Z-axis groove 125, a Z-axis slide block 126, a Z-axis slide plate 127, a Z-axis ball screw nut holder 128, a ball screw nut 129, an upper spindle holder 130, an upper spindle motor 131, an upper milling cutter 132, a lower milling cutter holder 133, a rotary support bearing 134, a turntable connection holder 135, a spindle motor plate 136, a dust cover bracket 105, a rotary support base 106, an X-axis base, a Y-axis base 116, a Y-axis base 117, a Y-axis base, a, The device comprises a lower spindle motor 137, a lower milling cutter 138, a turnover cylinder cushion 139, a turnover cylinder bracket 140, a turnover cylinder 141, a fisheye joint 142, a swing angle upper positioning 143, a swing angle lower positioning 144 and a Z-axis drag chain support 145.

A workbench 102 is arranged on the front side of a frame 101, a frame guide rail 103 and a frame rack 104 are arranged on the rear side beam of the frame 101, dust cover brackets 105 are arranged on two sides of the frame 101, and an X-axis origin coordinate 106 and an X-axis groove 107 are arranged on the rear side of the frame 101; a sliding table sliding block 108 is installed on the rack guide rail 103, the upright column sliding table 109 is installed on the sliding table sliding block 108, a gear rack transmission system 110 is installed on the right rear side of the upright column sliding table 109 and is meshed with the rack 104 for X-direction transmission, a sliding table guide rail 111 is fixed on the upright column sliding table 109, a Y-axis ball screw transmission system 117 is installed in the center of the upright column sliding table 109, an X-axis drag chain support 113 is installed on the left rear side of the upright column sliding table 109, and Y-axis origin coordinates 114 are installed on the left side of the upright column sliding table 109; a vertical column sliding block 115 is installed on the sliding table guide rail 111, a vertical column base 116 is installed on the vertical column sliding block 115, a Y-direction ball screw nut seat 117 is fixed at the bottom of the vertical column base 116, a ball screw nut 118 is installed in the Y-direction ball screw nut seat 117 and is matched with a Y-axis ball screw transmission system 112 for Y-direction transmission, a vertical column 119 is fixed on the vertical column base 116, a vertical column guide rail 120 is installed on the left side surface of the vertical column 119 in parallel, a positioning support seat 121 is fixed in front of the vertical column 119, a positioning frame 122 is installed on the positioning support seat 121, a Z-axis ball screw transmission system 123 is installed on the left side surface of the vertical column 119, a Z-axis origin coordinate 124 is installed on the upper part of the front vertical plane of the vertical column 119, and a Z-axis groove 125 is used for fixing the rear vertical plane of the vertical column 119; a Z-axis sliding block 126 is arranged on the upright guide rail 120, a Z-axis sliding plate 127 is arranged on the Z-axis sliding block 126, a Z-axis ball screw nut seat 128 is arranged on the inner side surface of the Z-axis sliding plate 127, a ball screw nut 129 is arranged in the Z-axis ball screw nut seat 128 and is matched with a Z-axis ball screw transmission system 123 for Z-direction transmission, an upper spindle seat 130 is arranged on the upper part of the outer vertical surface of the Z-axis sliding plate 127, an upper spindle motor 131 is arranged on the upper spindle seat 130, an upper milling cutter 132 is arranged on the upper spindle motor 131, a lower spindle seat 133 is fixed on the lower part of the outer vertical surface of the Z-axis sliding plate 127, a rotary support bearing 134 is fixed on the lower spindle seat 133 for the reverse rotation of the lower spindle motor 137, a rotary table connecting seat 135 is arranged outside the rotary support bearing 134, a spindle motor plate 136 is arranged on the rotary table connecting seat 135, the lower spindle motor 137 is arranged on the spindle motor plate 136, a lower milling cutter 138 is arranged on the lower spindle motor 137, a turnover cylinder cushion 139 is fixed outside the Z-axis sliding plate 127, the overturning cylinder bracket 140 is arranged on an overturning cylinder cushion 139, the overturning cylinder 141 is arranged in the overturning cylinder bracket 140, the overturning cylinder is connected with the spindle motor plate 136 through a fisheye joint 142 to realize the overturning of the lower spindle motor 137 (0-90 degrees), the upper swing angle positioning 143 is arranged on the lower spindle seat 133, the lower swing angle positioning 144 is arranged on the spindle motor plate 136 and controls the swing angle with the upper swing angle positioning 143, and the Z-axis drag chain bracket 145 is arranged on the rear vertical surface of the Z-axis sliding plate 127.

The laser scanning device 200 includes a scanning bracket 201, a scanning bracket guide rail 202, a ball screw transmission system 203, a stepping motor 204, a screw nut support 205, a screw nut 206, a slider bracket 207, a slider 208, a laser sensor mounting seat 209, a laser sensor 210, and a proximity switch 211. The scanning support 201 is fixedly installed on the left front side of the workbench 102, the scanning support guide rail 202 is installed on the scanning support 201, the ball screw transmission system 203 is fixed on the scanning support 201, the stepping motor 204 is installed on the ball screw transmission system 203, the screw nut support 205 is connected with the slider support 207 and installed on the scanning support guide rail 202 through the slider 208, the screw nut 206 is installed in the screw nut support 205 and matched with the ball screw transmission system 203 to realize up-and-down transmission, the laser sensor installation seat 209 is installed on the slider support 207, the laser sensor 210 is fixed on the laser sensor installation seat 209 and realizes up-and-down movement through the ball screw transmission system 203 and transmits the end face of a scanning profile to a control system, and the proximity switch 211 is fixed at the bottom of the scanning support 201 to control the negative limit stroke of the screw nut support 205.

The section pressing device 300 comprises a workbench bottom plate 301, a workbench stay bar 302, a workbench upper plate 303, a pressing cylinder 304, a workbench pressing plate 305, a workbench flange 306, a linear bearing 307, a workbench rib plate 308, a polyurethane pressing plate 309 and a section baffle plate 310; workstation bottom plate 301 is installed on workstation 102, workstation vaulting pole 302 is installed on workstation bottom plate 301, workstation upper plate 303 is fixed on workstation vaulting pole 302, it installs on workstation upper plate 303 to compress tightly cylinder 304 and is connected with workstation clamp plate 305 through workstation flange 306, workstation clamp plate 305 is connected with workstation vaulting pole 302 through linear bearing 307, workstation clamp plate 305 slides on workstation vaulting pole 302 through compressing tightly cylinder 304 and realizes compressing tightly, loosen the function, workstation gusset 308 is installed on workstation clamp plate 305, polyurethane clamp plate 309 is fixed on workstation gusset 308, section bar baffle 310 is installed in workstation bottom plate 301 both sides.

The working process of the laser scanning section bar end face reciprocating milling numerical control end face milling machine is as follows:

1. the aluminium alloy door and window profile is placed on the profile pressing device 300, and the pressing plate 305 of the system control workbench is pressed down to drop the pressing profile through the action of the pressing cylinder 304.

2. The laser sensor 210 moves upwards through the ball screw transmission system 203, scans the side end face of the profile, uploads the size of the end face to the control system, and the control system automatically sets the feeding depth of the milling cutter according to the scanning result.

3. The control system adjusts the upper spindle motor 131 to the position needing to be processed by recognizing the data uploaded by the laser scanning device 200, the upper spindle motor 131 carries out right-hand machining, after the upper spindle motor 131 runs out of the range of the workbench 102, the lower spindle motor 137 is lifted to the section milling position to carry out left-hand machining, and when the section needs to be cut off and processed, the lower spindle motor 137 turns outwards by 90 degrees through the overturning air cylinder 141, and the lower milling cutter 132 is erected to carry out end face cutting and processing.

The present invention is not limited to the above embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.

The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.

Claims

1. A laser scanning section end face reciprocating milling numerical control end face milling machine is characterized by comprising a reciprocating milling device, a laser scanning device and a section pressing device, wherein the reciprocating milling device is provided with a rack, a workbench, an X-axis motion mechanism, a Y-axis motion mechanism, a Z-axis motion mechanism and a turnover mechanism;

the laser scanning device is arranged at the front part of the workbench and is provided with a lifting mechanism and a laser sensor, and the laser sensor is arranged on the lifting mechanism and is used for scanning the section bar and then uploading the section bar to a control system;

2. The laser scanning sectional material end face reciprocating milling numerical control end face milling machine as claimed in claim 1, wherein the X-axis movement mechanism comprises a rack guide rail, a rack, an X-axis origin coordinate, an X-axis slot, a sliding table slider, an upright sliding table and a gear rack transmission system, two rack guide rails are arranged on the rack, a rack is arranged on a side beam at the back of the rack, dust cover brackets are arranged on two sides of the rack, the X-axis origin coordinate and the X-axis slot are arranged on the back side of the rack, the sliding table slider is arranged on the rack guide rail, the upright sliding table is arranged on the sliding table slider, the gear rack transmission system is arranged on the back side at the back of the upright sliding table and meshed with the rack of the rack for left-right transmission in the X-axis direction, and the sliding table guide rail is fixed on the upright sliding table.

3. The laser scanning sectional material end face reciprocating milling numerical control end face milling machine as claimed in claim 1, wherein the Y-axis movement mechanism comprises a Y-axis ball screw transmission system, an X-axis drag chain support, Y-axis origin coordinates, an upright column slide block, an upright column base, a Y-direction ball screw nut seat, a ball screw nut, an upright column and an upright column guide rail, the Y-axis ball screw transmission system is installed in the center of the upright column sliding table, the X-axis drag chain support is installed on the left rear side of the upright column sliding table, and the Y-axis origin coordinates are installed on the left side of the upright column sliding table; the sliding table guide rail is provided with an upright column sliding block, an upright column base is arranged on the upright column sliding block, a Y-direction ball screw nut seat is fixed at the bottom of the upright column base, a ball screw nut is arranged in the Y-direction ball screw nut seat and matched with a Y-axis ball screw transmission system for front-back transmission in the Y-axis direction, an upright column is fixed on the upright column base, and an upright column guide rail is arranged on the left side surface of the upright column in parallel.

4. The numerically controlled end face milling machine for end face reciprocating milling of laser scanning profiles according to claim 1, characterized in that the Z-axis movement mechanism comprises a positioning bracket base, a positioning frame, a Z-axis ball screw transmission system, Z-axis origin coordinates, a Z-axis wire slot, a Z-axis slider, a Z-axis slide plate, a Z-axis ball screw nut base, a ball screw nut, an upper spindle base, an upper spindle motor, an upper milling cutter, a lower spindle base, a rotary support bearing, a turntable connecting base, a spindle motor plate, a lower spindle motor and a lower milling cutter, the positioning bracket base is fixed in front of the column, the positioning frame is mounted on the positioning bracket base, the Z-axis ball screw transmission system is mounted on the left side face of the column, the Z-axis origin coordinates are mounted on the upper portion of the front vertical face of the column, and the Z-axis slot fixes the rear vertical face of the column; the Z-axis sliding block is mounted on the upright column guide rail, the Z-axis sliding plate is mounted on the Z-axis sliding block, a Z-axis ball screw nut seat is mounted on the inner side surface of the Z-axis sliding plate, a ball screw nut is mounted in the Z-axis ball screw nut seat and matched with a Z-axis ball screw transmission system for Z-direction transmission, an upper spindle seat is mounted on the upper portion of the outer vertical surface of the Z-axis sliding plate, an upper spindle motor is mounted on the upper spindle seat, an upper milling cutter is mounted on the upper spindle motor, a lower spindle seat is fixed on the lower portion of the outer vertical surface of the Z-axis sliding plate, a rotary supporting bearing is fixed on the lower spindle seat and used for overturning of a lower spindle motor, a rotary table connecting seat is mounted on the outer side of the rotary supporting bearing, a spindle motor plate is mounted on a rotary table connecting seat, the lower spindle motor is mounted on a spindle motor plate, and the lower milling cutter is mounted on the lower spindle motor.

5. The numerically controlled end face milling machine for end face reciprocating milling of laser scanning profiles as claimed in claim 1, wherein the turnover mechanism comprises a turnover cylinder cushion block, a turnover cylinder bracket, a turnover cylinder, a fisheye joint, an upper positioning of a swing angle and a lower positioning of the swing angle, the turnover cylinder cushion block is fixed on the outer vertical face of the Z-axis slide plate, the turnover cylinder bracket is mounted on the turnover cylinder cushion block, the turnover cylinder is mounted in the turnover cylinder bracket and used for connecting with the spindle motor plate through the fisheye joint to realize the turnover of the lower spindle motor by 0-90 degrees, the upper positioning of the swing angle is mounted on the lower spindle base, the lower positioning of the swing angle is mounted on the spindle motor plate and the upper positioning of the swing angle to control the swing angle, and the Z-axis drag chain bracket is mounted on the rear vertical face of the Z-axis slide plate.

6. The numerically controlled end face milling machine for end face reciprocating milling of laser scanning profiles according to claim 1, characterized in that the laser scanning device comprises a scanning bracket, a scanning bracket guide rail, a ball screw transmission system, a stepping motor, a screw nut support, a screw nut, a slider bracket, a slider, a laser sensor mounting seat, a laser sensor and a proximity switch; the scanning support is fixedly installed on the left front side of the workbench, the scanning support guide rail is installed on the scanning support, the ball screw transmission system is fixed on the scanning support, the stepping motor is installed on the ball screw transmission system, the screw nut support is connected with the sliding block support, the scanning support guide rail is installed on the sliding block, the screw nut is installed in the screw nut support and matched with the ball screw transmission system to realize up-down transmission, the laser sensor installation seat is installed on the sliding block support, the laser sensor is fixed on the laser sensor installation seat, up-down movement is realized through the ball screw transmission system, the profile end face is scanned and then transmitted to the control system, and the proximity switch is fixed at the bottom of the scanning support to control the negative limit stroke of the screw nut support.

7. The laser scanning section end face reciprocating milling numerical control end face milling machine according to claim 1, wherein the section pressing device comprises a workbench bottom plate, a workbench stay bar, a workbench upper plate, a pressing cylinder, a workbench pressing plate, a workbench flange, a linear bearing, a workbench rib plate, a polyurethane pressing plate and a section baffle plate; the utility model discloses a workstation bracing piece, the workstation bracing piece is installed on the workstation, the workstation upper plate is fixed on the workstation bracing piece, it is connected with the workstation clamp plate through the workstation flange to compress tightly the cylinder and install on the workstation upper plate, the workstation clamp plate passes through linear bearing and is connected with the workstation bracing piece, the workstation clamp plate slides on the workstation bracing piece through compressing tightly the cylinder and realizes compressing tightly, loosen the function, the workstation gusset is installed on the workstation clamp plate, the polyurethane clamp plate is fixed on the workstation gusset, the section bar baffle is installed in workstation bottom plate both sides.