Metal cutting device for door and window manufacturing

Abstract

The invention relates to the field of door and window cutting, in particular to a metal cutting device for door and window manufacturing, which comprises a metal window frame cutting table, a sliding block movably sleeved on the outer side surface of the top of the metal window frame cutting table, and a door and window frame movably sleeved on the outer side surface of the top of the metal window frame cutting table, the supporting rod is fixedly installed on the top surface of the metal window frame cutting table and located on the edge of one side, and limiting rail strips movably connected to the bottom surfaces of the sliding blocks in a sleeving mode are symmetrically and fixedly connected to the top surface of the metal window frame cutting table and located on the edges of the two sides. At the moment, after downward pressing force on the top surface of a U-shaped lower pressing plate is loosened, the U-shaped lower pressing plate is elastically pulled upwards in cooperation with an elastic wire on the inner side wall face of a rectangular sleeve shell, so that a damping soft block is separated from the top surface of the door and window frame, and the multiple conch blocks can be rotated at the same time through a multilateral supporting strip; and meanwhile, the door and window frame is separated from the top surface of the door and window frame.

Description

Technical Field

[0001] The invention belongs to the technical field of door and window cutting, in particular to a metal cutting device used for door and window manufacturing. Background Art

[0002] The window is composed of window frames, window sashes and hardware parts. The fixed part of the window frame is composed of the frame, upper frame, lower frame, middle horizontal frame and middle vertical frame; the movable part of the window sash is composed of the upper head, lower head, side stiles, window core and glass; hardware parts and accessories include hinges, wind hooks, latches, handle curtain boxes, window sills, cylinder boards and face panels, etc.

[0003] A patent with publication number CN116213826B discloses a metal cutting device for door and window manufacturing, including an operating body, the operating body including a workbench, the workbench is provided with a processing cavity and a feed trough, the inner wall of the processing cavity is fixedly connected with a storage plate flush with the horizontal plane of the feed trough, and a cutting part, the cutting part including a lifting plate, and the present invention relates to the field of metal cutting technology. The metal cutting device for door and window manufacturing can effectively solve the problem that in the prior art, most of the automated cutting devices use two heads to cut materials alternately, and when the saw blades on the first set of heads cut the broken bridge aluminum profile at 45 degrees, the manipulator pulls the broken bridge aluminum profile back, and the saw blades on the second set of heads cut the redundant profile ends at the opposite angle at 45 degrees, thereby ensuring that the bevels at both ends of the cut profile are symmetrical, but the above-mentioned cutting process requires the manipulator to reciprocate and position the profile multiple times, and the overall operation is cumbersome.

[0004] In the current existing technology, when processing aluminum alloy doors and windows, it is necessary to cut the thermal break aluminum profile into different parts for assembly, and the aluminum alloy doors and windows are all cut into 45-degree angles and then spliced ​​and assembled, and the thermal break aluminum profile is cut from a relatively long thermal break aluminum profile. This leads to the need to position the surface of the thermal break aluminum profile when cutting the thermal break aluminum profile, cut a 45-degree angle at one end of the thermal break aluminum profile, remove the positioning device on the surface of the thermal break aluminum profile, move the thermal break aluminum profile, and position and cut it again after moving to a specific length of the doors and windows. A long thermal break aluminum profile needs to be cut many times, and each time the surface of the long thermal break aluminum profile is cut, multiple positioning is required, which leads to the need to repeat the installation, positioning, and disassembly operations after each cutting of the thermal break aluminum profile. The whole process is relatively cumbersome and troublesome. Since the above-mentioned cutting process requires manual reciprocating pulling of the profile and multiple positioning, the overall operation is cumbersome, so that the positioning device cannot be installed and disassembled at the same time.

[0005] To this end, the present invention provides a metal cutting device for door and window manufacturing. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: the metal cutting device for door and window manufacturing described in the present invention comprises a metal window frame cutting table and a slider movably sleeved on the outer surface of the top of the metal window frame cutting table, a door and window frame movably sleeved on the outer surface of the top of the metal window frame cutting table, a support rod fixedly installed on the top surface of the metal window frame cutting table and located at the edge position of one side, the top surface of the metal window frame cutting table and located at the edge positions on both sides are symmetrically fixedly connected with limiting track strips movably sleeved on the bottom surface of the slider, the top surface of the metal window frame cutting table and located at the middle position is provided with a movably sleeved door frame. A slide groove on the outer surface of the window frame; a polygonal support strip is arranged on the top surface of the metal window frame cutting table and perpendicular to the top surface of the slide groove, a conch block is movably sleeved on the outer surface of the polygonal support strip, and a gradient expansion strip is fixedly connected to the outer surface of the conch block; a rectangular shell is fixedly connected to the outer surface of the slider, a rectangular notch is opened on the bottom surface of the rectangular shell, a U-shaped lower pressure plate arranged on the inner wall surface of the rectangular notch is movably sleeved on the inner wall surface of the rectangular shell, and a shock-absorbing soft block movably overlapped on the top surface of the door and window frame is fixedly connected to the inner wall surface of the U-shaped lower pressure plate and located on the bottom surface of the rectangular shell.

[0008] Preferably, a hydraulic rod 1 is arranged on the edge of one side of the metal window frame cutting table, a motor is fixedly mounted on the output end of the hydraulic rod 1, a cutting knife is arranged on the output end of the motor, and an air exchanger is arranged inside the metal window frame cutting table and on the edges of both sides of the hydraulic rod 1 and the cutting knife.

[0009] Preferably, a second hydraulic rod is provided on the inner wall surface of the slide groove, and a pull-out block movably sleeved on the inner wall surface of the slide groove is fixedly connected to the output end of the second hydraulic rod.

[0010] Preferably, elastic arms are fixedly connected to the inner wall surfaces on both sides of the pull-out block, and anti-skid soft blocks movably overlapped on the outer surface of the door and window frame are fixedly connected to the outer surface of the elastic arm.

[0011] Preferably, cylindrical rods are provided at both ends of the multilateral support strip, one end of the cylindrical rods are movably sleeved on the metal window frame cutting table and one end surface of the support rod respectively, and a handle is fixedly connected to one end of the cylindrical rod and at the edge position of the connection with the support rod.

[0012] Preferably, a polygonal limiting groove movably sleeved on the outer surface of the polygonal supporting strip is provided at the center of the conch block, and an overlapping extension plate is fixedly connected to one end of the gradient extension strip.

[0013] Preferably, a limiting rod movably sleeved on the outer surface of the rectangular shell is fixedly connected to the top surface of the U-shaped lower pressure plate and located at the edge positions on both sides, and an elastic wire movably sleeved on the outer surface of the limiting rod is fixedly connected to the top inner wall surface of the rectangular shell, and the other end of the elastic wire is fixedly connected to the top surface of the U-shaped lower pressure plate.

[0014] Preferably, an opening is provided on the top surface of the rectangular casing, and the outer surface of the conch block is arranged on the inner wall of the opening, and the outer surface of the gradient expansion strip is movably overlapped on the top surface of the U-shaped lower pressure plate.

[0015] The beneficial effects of the present invention are as follows: 1. The metal cutting device for door and window manufacturing described in the present invention cooperates with the metal window frame cutting table to push the door and window frame so that the surface of the door and window frame overlaps the inner wall surface of the slide groove and the pull-out block. At this time, the slider slides on the top surface of the limit track bar so that the rectangular shells on the outer surfaces of multiple groups of sliders can move on the top surface of the door and window frame. When the handle is pulled, the multilateral support strip on one end of the handle rotates on the support rod and the surface of the metal window frame cutting table. When the multilateral support strip rotates, it drives the conch block The conch block rotates on the inner wall surface of the opening. When the conch block rotates, the thickness of the gradual expansion strip on the outer surface of the conch block gradually becomes thicker, which will gradually press down the U-shaped lower pressure plate on the outer surface of the rectangular casing. When the U-shaped lower pressure plate presses down, the shock-absorbing soft block on the inner wall surface of the U-shaped lower pressure plate will be squeezed and positioned on the top surface of the door and window frame, thereby achieving the effect of using the directional rotation of the multilateral support strips to simultaneously rotate multiple rectangular casings, and then firmly squeezing and positioning the door and window frames on the top surface of the metal window frame cutting table; 2. A metal cutting device for manufacturing doors and windows according to the present invention, when one end of the door and window frame is cut, the multilateral support strip is rotated so that the gradual expansion strip on the surface of the conch block is relaxed from the top surface of the U-shaped lower pressure plate. At this time, after the downward pressure on the top surface of the U-shaped lower pressure plate is relaxed, the elastic wire on the inner wall of the rectangular casing is used to elastically pull the U-shaped lower pressure plate upward, so that the shock-absorbing soft block is separated from the top surface of the door and window frame, thereby achieving the effect that a plurality of conch blocks can be simultaneously rotated by using the multilateral support strip and separated from the top surface of the door and window frame at the same time; 3. A metal cutting device for door and window manufacturing described in the present invention pulls the pull-out block toward the direction of the cutting knife through two hydraulic rods. At this time, the anti-skid soft blocks on the outer surface of the elastic arm can be elastically squeezed on the two side surfaces of the door and window frame, and then the door and window frame is pushed under the pulling of the two hydraulic rods, and the operation of the support strip is repeated, so that the gradient expansion strip can be positioned on the top surface of the door and window frame at one time, and then the surface of the door and window frame is positioned again. When the door and window frame is positioned, the two hydraulic rods are used to push the pull-out block. At this time, the door and window frame cannot be effectively moved after being positioned by the shock-absorbing soft block. Under the push of the two hydraulic rods, the pull-out block will move toward the tail end on the surface of the door and window frame, so that the cut door and window frame can be automatically adjusted without the need for employees to perform secondary manual adjustments later. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a stereogram of the present invention; Figure 2 It is a partially cutaway stereoscopic view of a metal window frame cutting table in the present invention; Figure 3 It is a three-dimensional diagram of the pull-out block in the present invention; Figure 4 It is a three-dimensional diagram of a rectangular casing in the present invention; Figure 5 It is a rotating stereogram of the rectangular casing in the present invention; Figure 6 It is a partial cutaway stereoscopic view of a rectangular casing in the present invention; Figure 7 It is a three-dimensional diagram of a conch block in the present invention.

[0018] In the figure: 11, metal window frame cutting table; 111, limit track bar; 112, slide groove; 113, air exchanger; 114, hydraulic rod one; 115, cutting knife; 116, hydraulic rod two; 117, pull-out block; 118, elastic arm; 119, anti-skid soft block; 12, slider; 121, rectangular shell; 122, rectangular notch; 123, U-shaped lower pressure plate; 124, shock-absorbing soft block; 125, limit rod; 126, elastic wire; 127, opening; 13, door and window frame; 14, support rod; 141, handle; 142, multilateral support bar; 143, conch block; 144, multilateral limit groove; 145, gradual expansion strip; 146, overlapping extension plate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] like Figures 1 to 7 As shown, a metal cutting device for door and window manufacturing according to an embodiment of the present invention comprises a metal window frame cutting table 11 and a slider 12 movably sleeved on the outer surface of the top of the metal window frame cutting table 11, a door and window frame 13 movably sleeved on the outer surface of the top of the metal window frame cutting table 11, a support rod 14 fixedly mounted on the top surface of the metal window frame cutting table 11 and located at an edge position on one side, a limiting track bar 111 movably sleeved on the bottom surface of the slider 12 is symmetrically fixedly connected on the top surface of the metal window frame cutting table 11 and located at the edge positions on both sides, and a slide groove 112 movably sleeved on the outer surface of the door and window frame 13 is opened on the top surface of the metal window frame cutting table 11 and located at the middle position; the metal window frame cutting table 11 is provided with a metal window frame cutting table 11. A polygonal support bar 142 is provided on the top surface of the cutting table 11 and perpendicular to the top surface of the slide groove 112, a conch block 143 is movably sleeved on the outer surface of the polygonal support bar 142, and a gradient expansion bar 145 is fixedly connected to the outer surface of the conch block 143; a rectangular shell 121 is fixedly connected to the outer surface of the slider 12, a rectangular notch 122 is provided on the bottom surface of the rectangular shell 121, a U-shaped lower pressure plate 123 arranged on the inner wall of the rectangular notch 122 is movably sleeved on the inner wall of the rectangular shell 121, and a shock-absorbing soft block 124 movably overlapped on the top surface of the door and window frame 13 is fixedly connected to the inner wall of the U-shaped lower pressure plate 123 and located on the bottom surface of the rectangular shell 121.

[0021] The metal window frame cutting table 11 is used to push the door and window frame 13, so that the surface of the door and window frame 13 overlaps the inner wall of the slide groove 112 and the pull-out block 117. At this time, the slider 12 is used to slide on the top surface of the limiting track bar 111, so that the rectangular shells 121 on the outer surfaces of the multiple groups of sliders 12 can move on the top surface of the door and window frame 13, and the handle 141 is pulled to make the multilateral support strip 142 on one end of the handle 141 rotate on the surface of the support rod 14 and the metal window frame cutting table 11. When the multilateral support strip 142 rotates, it will drive the conch block 143 to rotate on the inner wall of the opening 127. When the conch block 143 rotates, the thickness of the gradual expansion strip 145 on the outer surface of the conch block 143 is adjusted. As it gradually becomes thicker, the U-shaped pressing plate 123 on the outer surface of the rectangular cover 121 will be gradually pressed downward. When the U-shaped pressing plate 123 is pressed downward, the shock-absorbing soft block 124 on the inner wall of the U-shaped pressing plate 123 will be squeezed and positioned on the top surface of the door and window frame 13, thereby achieving the effect of utilizing the directional rotation of the multilateral support strips 142 to simultaneously rotate multiple rectangular covers 121, and then firmly squeezing and positioning the door and window frame 13 on the top surface of the metal window frame cutting table 11, avoiding the need to repeat the installation, positioning, and disassembly operations every time the broken bridge aluminum profile is cut. The whole process is relatively cumbersome and troublesome. Since the above-mentioned cutting process requires manual reciprocating pulling of the profile and multiple positioning, the overall operation is cumbersome, so that the positioning device cannot be installed and disassembled at the same time.

[0022] like Figures 1 to 7 As shown, a limiting rod 125 movably sleeved on the outer surface of the rectangular casing 121 is fixedly connected to the top surface of the U-shaped lower pressure plate 123 and located at the edge positions on both sides, an elastic wire 126 movably sleeved on the outer surface of the limiting rod 125 is fixedly connected to the top inner wall surface of the rectangular casing 121, the other end of the elastic wire 126 is fixedly connected to the top surface of the U-shaped lower pressure plate 123, an opening 127 is provided on the top surface of the rectangular casing 121, and the outer surface of the conch block 143 is arranged on the inner wall surface of the opening 127, and the outer surface of the gradient expansion strip 145 is movably overlapped on the top surface of the U-shaped lower pressure plate 123.

[0023] After one end of the door and window frame 13 is cut, the multilateral support strip 142 is rotated so that the gradual expansion strip 145 on the surface of the conch block 143 is relaxed from the top surface of the U-shaped lower pressing plate 123. At this time, after the downward pressure on the top surface of the U-shaped lower pressing plate 123 is relaxed, the elastic wire 126 on the inner wall of the rectangular shell 121 is used to elastically pull the U-shaped lower pressing plate 123 upward, so that the shock-absorbing soft block 124 is separated from the top surface of the door and window frame 13, thereby achieving the effect of using the multilateral support strip 142 to simultaneously rotate multiple conch blocks 143 and separate them from the top surface of the door and window frame 13. This avoids the need for employees to disassemble and relax the clamping devices on the surface of the door and window frame 13 one by one while moving the door and window frame 13 after one end of the door and window frame 13 is cut, and employees are also required to move the door and window frame 13 to adjust the position. After adjusting the position, they need to be installed one by one, which will waste a long time in a certain process.

[0024] like Figures 1 to 7 As shown, a hydraulic rod 114 is arranged on one side edge of the metal window frame cutting table 11, a motor is fixedly installed on the output end of the hydraulic rod 114, a cutting knife 115 is arranged on the output end of the motor, an air exchanger 113 is arranged inside the metal window frame cutting table 11 and on the edges of both sides of the hydraulic rod 114 and the cutting knife 115, a hydraulic rod 2 116 is arranged on the inner wall of the slide 112, and a pulling block 117 movably sleeved on the inner wall of the slide 112 is fixedly connected to the output end of the hydraulic rod 2 116.

[0025] At this time, the motor on the output end of the hydraulic rod 114 is used to rotate the cutting knife 115, so that a 45° angle is formed between the cutting knife 115 and the surface of the door and window frame 13, and then the cutting knife 115 is raised by the hydraulic rod 114, and the surface of the door and window frame 13 is cut by the hydraulic rod 2 116. While cutting, the air exchanger 113 is used to exhaust the sparks and metal waste gas generated when the door and window frame 13 is cut, so that the sparks and metal waste gas form a downward flow direction, which greatly reduces the sparks and metal waste gas from floating everywhere.

[0026] like Figures 1 to 7As shown, elastic arms 118 are fixedly connected to the inner wall surfaces on both sides of the pull-out block 117, and anti-skid soft blocks 119 that are movably overlapped on the outer surfaces of the door and window frames 13 are fixedly connected to the outer surfaces of the elastic arms 118. Cylindrical rods are provided at both ends of the multilateral support strips 142, and one end of the cylindrical rods is movably sleeved on the surfaces of the metal window frame cutting table 11 and one end of the support rod 14 respectively. A handle 141 is fixedly connected to one end of the cylindrical rod and at the edge position of the connection with the support rod 14. A polygonal limiting groove 144 that is movably sleeved on the outer surfaces of the polygonal support strips 142 is provided at the center position of the conch block 143, and an overlapping extension plate 146 is fixedly connected to one end of the gradient extension strip 145.

[0027] The pull block 117 is pulled toward the cutting knife 115 by the hydraulic rod 116, and the anti-skid soft block 119 on the outer surface of the elastic arm 118 can be elastically squeezed on the two side surfaces of the door and window frame 13, and then the door and window frame 13 is pushed under the pulling of the hydraulic rod 116, and the operation of the support strip 142 is repeated, so that the gradual expansion strip 145 can be squeezed and positioned on the top surface of the door and window frame 13 at one time, and then the surface of the door and window frame 13 is positioned again. After being positioned, the hydraulic rod 116 is cooperated to push the pull block 117. Since the door and window frame 13 is positioned by the shock-absorbing soft block 124 at this time and cannot be effectively moved, the pull block 117 is pushed by the hydraulic rod 116 so that the pull block 117 moves toward the tail end on the surface of the door and window frame 13, so that the cut door and window frame 13 can be automatically adjusted, and there is no need for employees to perform secondary manual adjustments later, which avoids the need to repeat the installation, positioning and disassembly operations after each cutting of the thermally-broken aluminum profile.

[0028] Working principle: The metal window frame cutting table 11 is used to push the door and window frame 13, so that the surface of the door and window frame 13 overlaps the inner wall surface of the slide groove 112 and the pull-out block 117. At this time, the slider 12 is used to slide on the top surface of the limit track bar 111, so that the rectangular shells 121 on the outer surfaces of the multiple groups of sliders 12 can move on the top surface of the door and window frame 13, and the handle 141 is pulled so that the multilateral support bar 142 on one end of the handle 141 rotates on the support rod 14 and the surface of the metal window frame cutting table 11. When the multilateral support bar 142 rotates, it will drive the conch block 14 3 rotates on the inner wall surface of the opening 127. When the conch block 143 rotates, the thickness of the gradual expansion strip 145 on the outer surface of the conch block 143 gradually becomes thicker, which will gradually press down the U-shaped lower pressing plate 123 on the outer surface of the rectangular casing 121. When the U-shaped lower pressing plate 123 presses down, the shock-absorbing soft block 124 on the inner wall surface of the U-shaped lower pressing plate 123 is pressed and positioned on the top surface of the door and window frame 13, so that the directional rotation of the multilateral support strip 142 is used to simultaneously rotate multiple rectangular casings 121, thereby firmly pressing and positioning the door and window frame 13 on the metal casing 121. The effect is on the top surface of the window frame cutting table 11; at this time, the motor on the output end of the hydraulic rod 114 is used to rotate the cutting knife 115, so that a 45° angle is formed between the cutting knife 115 and the surface of the door and window frame 13, and then the cutting knife 115 is raised by the hydraulic rod 114, and the surface of the door and window frame 13 is cut by the hydraulic rod 2 116. At the same time, the air exchanger 113 is used to extract the sparks and metal waste gas generated when the door and window frame 13 is cut, so that the sparks and metal waste gas form a downward flow direction, which greatly reduces the sparks and metal waste gas floating everywhere; when one end of the door and window frame 13 After cutting, the multilateral support strip 142 is rotated to make the gradual expansion strip 145 on the surface of the conch block 143 relax from the top surface of the U-shaped lower pressing plate 123. At this time, after the downward pressure on the top surface of the U-shaped lower pressing plate 123 is relaxed, the elastic wire 126 on the inner wall of the rectangular casing 121 is used to elastically pull the U-shaped lower pressing plate 123 upward, so that the shock-absorbing soft block 124 is separated from the top surface of the door and window frame 13, thereby achieving the effect of using the multilateral support strip 142 to simultaneously rotate multiple conch blocks 143 and separate them from the top surface of the door and window frame 13.The pull-out block 117 is pulled toward the cutting knife 115 by the second hydraulic rod 116. At this time, the anti-skid soft block 119 on the outer surface of the elastic arm 118 can be elastically squeezed on the two side surfaces of the door and window frame 13, and then the door and window frame 13 is pushed under the pulling of the second hydraulic rod 116. The operation of the support bar 142 is repeated, so that the gradual expansion bar 145 can be squeezed and positioned on the top surface of the door and window frame 13 at one time, and then the surface of the door and window frame 13 is positioned again. When the door and window frame 13 is positioned, the pull-out block 117 is pushed in cooperation with the second hydraulic rod 116. Since the door and window frame 13 is positioned by the damping soft block 124 at this time and cannot be effectively moved, the pull-out block 117 is pushed by the second hydraulic rod 116 so that the pull-out block 117 moves toward the tail end on the surface of the door and window frame 13, so that the door and window frame 13 after cutting can be automatically adjusted without the need for employees to perform secondary manual adjustments later. ;

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A metal cutting device for manufacturing doors and windows, comprising a metal window frame cutting table (11) and a slider (12) movably sleeved on the top outer surface of the metal window frame cutting table (11), a door and window frame (13) movably sleeved on the top outer surface of the metal window frame cutting table (11), and a support rod (14) fixedly mounted on the top surface of the metal window frame cutting table (11) and located at a side edge position, characterized in that: The top surface of the metal window frame cutting platform (11) and the two side edge positions are symmetrically fixedly connected with a limit track strip (111) that is movably sleeved on the bottom surface of the slider (12); the top surface of the metal window frame cutting platform (11) and the middle position are provided with a slide groove (112) that is movably sleeved on the outer surface of the door and window frame (13); the top surface of the metal window frame cutting platform (11) and perpendicular to the top surface of the slide groove (112) are provided with a multi-sided support strip (142); the outer surface of the multi-sided support strip (142) is movably sleeved with a conch block (143); the conch block A gradient expansion strip (145) is fixedly connected to the outer surface of the slider (143); a rectangular casing (121) is fixedly connected to the outer surface of the slider (12); a rectangular notch (122) is provided on the bottom surface of the rectangular casing (121); a U-shaped lower pressure plate (123) arranged on the inner wall surface of the rectangular notch (122) is movably sleeved on the inner wall surface of the rectangular casing (121); a shock-absorbing soft block (124) movably overlapped on the top surface of the door and window frame (13) is fixedly connected to the inner wall surface of the U-shaped lower pressure plate (123) and located on the bottom surface of the rectangular casing (121).

2. A metal cutting device for door and window manufacturing according to claim 1, characterized in that: A hydraulic rod 1 (114) is arranged at an edge position on one side of the metal window frame cutting platform (11); a motor is fixedly mounted on the output end of the hydraulic rod 1 (114); a cutting knife (115) is arranged on the output end of the motor; and an air exchanger (113) is arranged inside the metal window frame cutting platform (11) and at the edge positions on both sides of the hydraulic rod 1 (114) and the cutting knife (115).

3. A metal cutting device for door and window manufacturing according to claim 2, characterized in that: A second hydraulic rod (116) is provided on the inner wall surface of the slide groove (112), and a pull-out block (117) movably sleeved on the inner wall surface of the slide groove (112) is fixedly connected to the output end of the second hydraulic rod (116).

4. A metal cutting device for door and window manufacturing according to claim 3, characterized in that: Elastic arms (118) are fixedly connected to the inner wall surfaces on both sides of the pull-out block (117), and anti-slip soft blocks (119) movably overlapped on the outer surface of the door and window frame (13) are fixedly connected to the outer surface of the elastic arms (118).

5. A metal cutting device for door and window manufacturing according to claim 4, characterized in that: Cylindrical rods are provided at both ends of the multi-sided support strip (142), one end of the cylindrical rod being movably sleeved on the surface of the metal window frame cutting table (11) and one end of the support rod (14), respectively, and a handle (141) is fixedly connected to one end of the cylindrical rod and at the edge of the connection with the support rod (14).

6. A metal cutting device for door and window manufacturing according to claim 1, characterized in that: A polygonal limiting groove (144) movably sleeved on the outer surface of the polygonal supporting strip (142) is provided at the center of the conch block (143), and an overlapping extension plate (146) is fixedly connected to one end of the gradient extension strip (145).

7. The metal cutting device for door and window manufacturing according to claim 1, characterized in that: A limit rod (125) movably sleeved on the outer surface of the rectangular casing (121) is fixedly connected to the top surface of the U-shaped lower pressing plate (123) and located at the edge positions on both sides; an elastic wire (126) movably sleeved on the outer surface of the limit rod (125) is fixedly connected to the top inner wall surface of the rectangular casing (121); the other end of the elastic wire (126) is fixedly connected to the top surface of the U-shaped lower pressing plate (123).

8. A metal cutting device for door and window manufacturing according to claim 7, characterized in that: An opening (127) is provided on the top surface of the rectangular casing (121), and the outer surface of the conch block (143) is arranged on the inner wall of the opening (127), and the outer surface of the gradient expansion strip (145) is movably overlapped on the top surface of the U-shaped lower pressure plate (123).

Images