Sectional material cutting equipment

Abstract

The invention discloses sectional material cutting equipment which comprises a workbench, and a supporting base is arranged on the workbench and used for supporting the overlapped part of a vertically-placed sectional material workpiece by more than one circle; the positioning support is arranged on the workbench and used for supporting a vertically-placed profile workpiece, at least three non-collinear positioning assemblies are movably arranged on the positioning support, and the left side, the right side and the top side of the profile workpiece abut against at least one positioning assembly correspondingly; the downward pressing and fixing mechanism is movably arranged above the bracket and used for downwards pressing the overlapped part, exceeding one circle, of the profile workpiece on the bracket; and the cutting mechanism is movably arranged on the workbench in a lifting mode and used for cutting the overlapped part, exceeding one circle, of the profile workpiece. According to the sectional material cutting equipment, the sectional material workpieces can be accurately positioned, the notch shape and the cutting size precision are ensured, the positioning assembly can move relative to the positioning support so as to cut the sectional material workpieces of different sizes in a matched mode, and therefore the universality of the sectional material cutting equipment is improved.

Description

Technical Field

[0001] The invention relates to a profile cutting device. Background Art

[0002] At present, some daily necessities often need to use aluminum profiles as frames. After the aluminum profile is wrapped around to form a circle or rectangle, the two ends of the aluminum profile form a partially overlapping position, and the excess material needs to be cut off by cutting equipment. Traditional cutting equipment places a circle of profiles flat on the table, uses a pressing mechanism to press down and fix multiple positions, and then cuts. However, during the cutting or positioning process, the shape and size of a circle of profiles are prone to change, resulting in uneven cuts, affecting subsequent production and processing, and ultimately affecting the product's yield. In addition, for rolled circular profiles of different diameters or rectangular profiles with different side lengths, the position of the pressing mechanism needs to be repeatedly adjusted, which is not convenient for cutting products of different specifications. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the purpose of the present invention is to provide a profile cutting device that is conducive to accurately positioning a profile workpiece to ensure the shape of the cut and the dimensional accuracy of the cut, and the profile cutting device is suitable for profile workpieces of different sizes to improve versatility.

[0004] A profile cutting device according to an embodiment of the present invention includes: a workbench, on which a support is provided, and the support is used to support the overlapping portion of a vertically placed profile workpiece that exceeds one circle; a positioning bracket, provided on the workbench, and used to support the vertically placed profile workpiece, and at least three non-collinear positioning components are movably provided on the positioning bracket, and the left side, right side and top side of the profile workpiece are respectively against at least one of the positioning components; a downward pressing fixing mechanism, movably provided above the support, and used to press the overlapping portion of the profile workpiece that exceeds one circle downward onto the support; a cutting mechanism, movably raised and lowered on the workbench, and used to cut off the overlapping portion of the profile workpiece that exceeds one circle.

[0005] A profile cutting device according to an embodiment of the present invention has at least the following beneficial effects:

[0006] The profile cutting equipment of the above structure utilizes a positioning bracket and a support to jointly support a vertically placed profile workpiece that is surrounded more than one circle. At least three positioning components and a support respectively contact the left side, right side, top side and bottom side of the profile workpiece, and then utilize a cutting mechanism to cut off the overlapping portion of the profile workpiece that exceeds one circle, thereby accurately positioning the profile workpiece to ensure the shape of the incision and the dimensional accuracy of the cutting. The positioning component can move relative to the positioning bracket to adapt to cutting profile workpieces of different sizes and specifications, thereby improving the versatility of the profile cutting equipment.

[0007] In some embodiments of the present invention, the support seat includes a left seat body and a right seat body spaced apart from each other on the left and right sides, the left seat body and the right seat body are respectively provided with a first supporting surface and a second supporting surface which are in contact with the bottom outer wall of the profile workpiece, the cutting mechanism includes a lifting seat lifted on the workbench, a motor provided on the lifting seat and a saw gear driven by the motor, the workbench is provided with a clearance through hole groove between the left seat body and the right seat body, and the saw gear can extend upward from the clearance through hole groove to cut off the overlapping portion of the profile workpiece that exceeds one circle.

[0008] In some embodiments of the present invention, both the first supporting surface and the second supporting surface are arc concave surfaces, and both the left seat body and the right seat body can be detachably mounted on the workbench.

[0009] In some embodiments of the present invention, the left seat body and the right seat body are both provided with a front limit plate and a rear limit plate for preventing the overlapping part of the profile workpiece exceeding one circle from moving forward and backward, and the front limit plate, the rear limit plate, the first support surface and the second support surface together form a limit space.

[0010] In some embodiments of the present invention, the upper ends of the front limiting plate and the rear limiting plate are both provided with arc guide angles for guiding the profile workpiece to be inserted downward into the limiting space.

[0011] In some embodiments of the present invention, the positioning bracket includes a vertical beam member fixed to the workbench and a horizontal beam member orthogonal to the vertical beam member, the upper part of the vertical beam member is slidably and lifted with a positioning component, and both ends of the horizontal beam member are slidably and lifted with a positioning component along the length direction thereof, and the vertical beam member and the horizontal beam member are both provided with a scale extending along the length direction thereof.

[0012] In some embodiments of the present invention, the vertical beam member and the cross beam member are made of magnetic material, the positioning assembly includes an adjustment seat and a magnetic suction member rotatably arranged on the adjustment seat, the magnetic suction member can be rotated to adsorb and fix the adjustment seat on the vertical beam member or the cross beam member, and the magnetic suction member can be rotated to make the adjustment seat detach from the vertical beam member or the cross beam member.

[0013] In some embodiments of the present invention, the adjustment seat located on the vertical beam is further provided with a receiving groove with an opening adapted to the profile workpiece and a rotary clamping cylinder movably provided at the opening of the receiving groove.

[0014] In some embodiments of the present invention, the cross beam is connected to the vertical beam via a lifting and adjusting mechanism.

[0015] In some embodiments of the present invention, the vertical beam member is provided with a sliding guide groove along its height direction, the middle part of the cross beam member is provided with a sliding block portion that can move back and forth in the sliding guide groove, the lifting and lowering adjustment mechanism includes a fastening bolt passing through the cross beam member and a plurality of positioning holes arranged at intervals along the height direction of the vertical beam member, and the fastening bolt is correspondingly connected to one of the positioning holes to adjust the height position of the cross beam member.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of Embodiment 1 of the profile cutting device of the present invention;

[0019] Figure 2 for Figure 1 A partial enlarged schematic diagram of an embodiment;

[0020] Figure 3 It is a structural schematic diagram of a second embodiment of the profile cutting device of the present invention;

[0021] Figure 4 The present invention is a schematic diagram of an embodiment of the cooperation between a front limit plate, a rear limit plate and a profile workpiece.

[0022] Reference numerals:

[0023] Profile workpiece 10; workbench 100; give way through hole groove 110; bottom plate 120; bracket 200; left seat body 210; first support surface 211; right seat body 220; second support surface 221; positioning bracket 300; vertical beam 310; sliding guide groove 311; cross beam 320; positioning assembly 400; accommodating groove 410; rotating clamping cylinder 420; pressing fixing mechanism 500; cutting mechanism 600; front limit plate 710; first vertical plate 711; horizontal plate 712; second vertical plate 713; rear limit plate 720; scale 800; lifting and lowering adjustment mechanism 900; fastening bolt 910; positioning hole 920. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figures 1 to 3 A profile cutting device of the present invention comprises: a workbench 100, on which a bracket 200 is provided, and the bracket 200 is used to support the overlapping portion of a vertically placed profile workpiece 10 exceeding one circle; a positioning bracket 300, which is arranged on the workbench 100 and is used to support the vertically placed profile workpiece 10, and at least three non-collinear positioning components 400 are movably arranged on the positioning bracket 300, and the left side, right side and top side of the profile workpiece 10 are respectively against at least one of the positioning components 400; a downward pressing fixing mechanism 500, which is movably arranged above the bracket 200 and is used to press the overlapping portion of the profile workpiece 10 exceeding one circle downward onto the bracket 200; a cutting mechanism 600, which is movably lifted and lowered on the workbench 100 and is used to cut off the overlapping portion of the profile workpiece 10 exceeding one circle.

[0029] The profile cutting equipment of the above structure utilizes the positioning bracket 300 and the support 200 to jointly support the vertically placed profile workpiece 10 that is surrounded more than one circle. At least three positioning components 400 and the support 200 respectively contact the left side, right side, top side and bottom side of the profile workpiece 10, and then utilize the cutting mechanism 600 to cut off the overlapping part of the profile workpiece 10 that exceeds one circle, so as to accurately position the profile workpiece 10 and ensure the shape of the cut and the dimensional accuracy of the cutting. The positioning component 400 can move relative to the positioning bracket 300 to adapt to the cutting of profile workpieces 10 of different sizes, thereby improving the versatility of the profile cutting equipment.

[0030] See also Figure 2 In some embodiments of the present invention, the bracket 200 includes a left seat body 210 and a right seat body 220 spaced apart from each other on the left and right sides, and the left seat body 210 and the right seat body 220 are respectively provided with a first supporting surface 211 and a second supporting surface 221 which are in contact with the bottom outer wall of the profile workpiece 10. The cutting mechanism 600 includes a lifting seat lifted on the workbench 100, a motor provided on the lifting seat, and a saw gear driven by the motor. The workbench 100 is provided with a clearance through hole groove 110 located between the left seat body 210 and the right seat body 220, and the saw gear can extend upward from the clearance through hole groove 110 to cut off the overlapping portion of the profile workpiece 10 that exceeds one circle. It can be understood that the left half of the overlapping part of the profile workpiece 10 that exceeds one circle is placed on the first support surface 211, and the right half of the overlapping part of the profile workpiece 10 that exceeds one circle is placed on the second support surface 221. The downward pressing and fixing mechanism 500 presses the position of the profile workpiece 10 located on both sides of the saw gear on the left seat body 210 and the right seat body 220. As the lifting seat rises, the saw gear driven by the motor extends upward from the yielding through hole groove 110 to cut off the part of the profile workpiece 10 that exceeds one circle. At this time, the two end faces of the profile workpiece 10 can be matched, which is convenient for subsequent welding and fixing together. In this embodiment, the downward pressing and fixing mechanism 500 includes two downward pressing cylinders that are respectively lifted and lowered above the left seat body 210 and the right seat body 220.

[0031] See also Figure 1 and Figure 2In some embodiments of the present invention, the first supporting surface 211 and the second supporting surface 221 are both arc concave surfaces, and the left seat body 210 and the right seat body 220 can be detachably installed on the workbench 100. It can be understood that when the profile workpiece 10 is surrounded into a circle, the profile workpiece 10 has an arc portion that exceeds one circle, and the first supporting surface 211 and the second supporting surface 221 are both arc concave surfaces to fit the profile workpiece 10 surrounded into a circle, thereby ensuring the fixing effect of the profile workpiece 10, thereby ensuring that the incision is smooth after cutting and the dimensional accuracy of the cutting is high. In addition, since the left seat body 210 and the right seat body 220 can be detachably installed on the workbench 100, they can adapt to the processing of profile workpieces 10 of different diameters. Of course, in other embodiments, see Figure 3 When the profile workpiece 10 is surrounded into a rectangular frame, the first supporting surface 211 and the second supporting surface 221 are planes.

[0032] See also Figures 1 to 3 In some embodiments of the present invention, the left seat body 210 and the right seat body 220 are both provided with a front limit plate 710 and a rear limit plate 720 for preventing the overlapping portion of the profile workpiece 10 exceeding one circle from moving forward and backward, and the front limit plate 710, the rear limit plate 720, the first support surface 211 and the second support surface 221 together form a limit space. It can be understood that the positioning assembly 400 and the bracket 200 only limit the profile workpiece 10 in the up-down direction and the left-right direction. The profile workpiece 10 may move in the front-back direction. The front limit plate 710 and the rear limit plate 720 solve the problem of the profile workpiece 10 moving forward and backward, and further ensure the cutting accuracy.

[0033] See also Figure 2 and Figure 4 In this embodiment, the upper surface of the workbench 100 is further provided with a bottom plate 120, the rear stop plate 720 and the bracket 200 are both fixed on the upper surface of the bottom plate 120, and the front stop plate 710 is detachably mounted on the front end surface of the bottom plate. According to the profile workpiece 10 of different material widths, the front stop plate 710 of different shapes and sizes can be replaced to allow the overlapped portion of the profile workpiece 10 exceeding one circle to be clamped and positioned between the front stop plate 710 and the rear stop plate 720. For example, when the overlapped portion of the profile workpiece 10 exceeding one circle is along Figure 1When the dimension of the front-to-back direction of the coordinate system is smaller than the distance between the front limit plate 710 and the rear limit plate 720, the front limit plate 710 is replaced with a stepped shape, that is, the front limit plate 710 includes a first vertical plate 711 fixed to the front end surface of the bottom plate 120, a horizontal plate 712 connected to the upper end of the first vertical plate 711 and extending backward, and a second vertical plate 713 connected to the rear end of the horizontal plate, and the second vertical plate 713 abuts against the side wall of the overlapping portion of the profile workpiece 10 exceeding one circle; similarly, when the overlapping portion of the profile workpiece 10 exceeding one circle is along Figure 1 When the dimension of the front-to-back direction of the coordinate system is greater than the distance between the front stop plate 710 and the rear stop plate 720, the front stop plate 710 includes a first vertical plate fixed to the front end surface of the bottom plate, a horizontal plate connected to the upper end of the first vertical plate and extending forward, and a second vertical plate connected to the front end of the horizontal plate, and the second vertical plate abuts against the side wall of the overlapping portion of the profile workpiece 10 that exceeds one circle. In order to avoid interference between the bracket 200 and the front stop plate 710, the dimension of the bracket 200 along the front-to-back direction should be less than the distance between the first vertical plate and the rear stop plate 720.

[0034] In some embodiments of the present invention, in order to facilitate the placement of the profile workpiece 10 between the front limit plate 710 and the rear limit plate 720, the upper ends of the front limit plate 710 and the rear limit plate 720 are provided with arc guide angles for guiding the profile workpiece 10 to insert downward into the limit space.

[0035] See also Figure 1 In some embodiments of the present invention, the positioning bracket 300 includes a vertical beam 310 fixed to the workbench 100 and a horizontal beam 320 orthogonal to the vertical beam 310, the upper part of the vertical beam 310 is provided with a positioning assembly 400 for sliding and lifting, and the two ends of the horizontal beam 320 are respectively provided with a positioning assembly 400 for sliding along the length direction thereof, and the vertical beam 310 and the horizontal beam 320 are both provided with a scale 800 extending along the length direction thereof. The provision of the scale 800 is conducive to the user to move each positioning assembly 400 into place according to the specific size of the profile workpiece 10, so as to avoid excessive extrusion of the profile workpiece 10 caused by the positioning assembly 400 after the movement.

[0036] In some embodiments of the present invention, the vertical beam 310 and the horizontal beam 320 are made of magnetic material, and the positioning assembly 400 includes an adjustment seat and a magnetic member rotatably arranged on the adjustment seat, and the magnetic member can be rotated to adsorb and fix the adjustment seat on the vertical beam 310 or the horizontal beam 320, and the magnetic member can be rotated to make the adjustment seat detach from the vertical beam 310 or the horizontal beam 320. The positioning assembly 400 of the above structure is a switch-type magnetic seat, which can be adsorbed or detached from the magnetic material by rotating 90° forward and backward, and is very convenient to use. Specifically, the magnetic attraction member is a bar magnet with an N pole and an S pole. When the bar magnet is parallel to the surface of the vertical beam member 310 or the horizontal beam member 320, the magnetic lines of force emitted by the N pole of the bar magnet can pass through the vertical beam member 310 or the horizontal beam member 320 and then return to the S pole, thereby generating a magnetic attraction force. When the bar magnet is perpendicular to the surface of the vertical beam member 310 or the horizontal beam member 320, the magnetic attraction force is lost. The switch type magnetic seat is a product of the prior art and will not be further described here.

[0037] See also Figure 1 In some embodiments of the present invention, in order to prevent the profile workpiece 10 from tipping forward, the adjustment seat located on the vertical beam 310 is further provided with a receiving groove 410 with an opening adapted to the profile workpiece 10 and a rotary clamping cylinder 420 movably arranged at the opening of the receiving groove 410. It can be understood that the rotary clamping cylinder 420 can be rotated to open the opening of the receiving groove 410 so that the profile workpiece 10 can be placed in the receiving groove 410, and then the rotary clamping cylinder 420 can be rotated to the opening of the receiving groove 410 and the profile workpiece 10 can be pressed against the bottom of the receiving groove 410, thereby positioning and fixing the profile workpiece 10.

[0038] See also Figure 1 In some embodiments of the present invention, the cross beam 320 is connected to the vertical beam 310 via a lifting and adjusting mechanism 900. It should be noted that, for the profile workpiece 10 that is surrounded in a circle, in order to ensure that the two positioning components 400 on the cross beam 320 can clamp the profile workpiece 10 along the radial direction of the profile workpiece 10 to avoid the loss of roundness, it is necessary to use the lifting and adjusting mechanism 900 to adjust the height position of the cross beam 320 to the right position. For the profile workpiece 10 that is roughly a rectangular frame, the lifting and adjusting mechanism 900 can also move the two positioning components 400 on the cross beam 320 to the middle position in the height direction of the profile workpiece 10, thereby ensuring the effect of multiple positioning components 400 cooperating with the bracket 200 to position the profile workpiece 10.

[0039] See also Figure 1In some embodiments of the present invention, the vertical beam 310 is provided with a sliding guide groove 311 along its height direction, and the middle part of the cross beam 320 is provided with a slider portion that can reciprocate and move up and down in the sliding guide groove 311. The lifting adjustment mechanism 900 includes a fastening bolt 910 penetrating the cross beam 320 and a plurality of positioning holes 920 spaced along the height direction of the vertical beam 310. The fastening bolt 910 is correspondingly connected to one of the positioning holes 920 to adjust the height position of the cross beam 320. It can be understood that when the relative height position of the cross beam 320 on the vertical beam 310 needs to be adjusted, the fastening bolt 910 is first loosened, and then the cross beam 320 is driven to move up and down until the fastening bolt 910 is aligned with the corresponding positioning hole 920. In this process, the slider portion slides up and down in the sliding guide groove 311, and then the fastening bolt 910 is connected to the positioning hole 920. It should be noted that the positioning holes 920 at different heights correspond to profile workpieces 10 of different sizes. Of course, in other embodiments, the positioning holes 920 can be eliminated and the fastening bolts 910 can be directly tightened on the vertical beam 310 to cope with profile workpieces 10 of more varying sizes.

[0040] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A profile cutting device, characterized in that: include: A workbench (100), wherein a support (200) is provided on the workbench (100), and the support (200) is used to support the overlapping portion of the vertically placed profile workpiece (10) exceeding one circle; A positioning bracket (300) is arranged on the workbench (100) and is used to support a vertically placed profile workpiece (10); at least three non-collinear positioning components (400) are movably arranged on the positioning bracket (300); the left side, the right side and the top side of the profile workpiece (10) are respectively against at least one of the positioning components (400); A downward pressing and fixing mechanism (500) is movably arranged above the bracket (200) and is used to press the overlapping portion of the profile workpiece (10) exceeding one circle downward onto the bracket (200); A cutting mechanism (600) is movably raised and lowered on the workbench (100) and is used to cut off the overlapping portion of the profile workpiece (10) that exceeds one circle.

2. A profile cutting device according to claim 1, characterized in that: The support seat (200) comprises a left seat body (210) and a right seat body (220) which are arranged at intervals on the left and right sides, the left seat body (210) and the right seat body (220) are respectively provided with a first supporting surface (211) and a second supporting surface (221) which are in contact with the bottom outer wall of the profile workpiece (10), the cutting mechanism (600) comprises a lifting seat which is lifted and lowered on the workbench (100), a motor which is arranged on the lifting seat, and a saw gear which is driven by the motor, the workbench (100) is provided with a clearance through hole groove (110) located between the left seat body (210) and the right seat body (220), and the saw gear can extend upward from the clearance through hole groove (110) to cut off the overlapping portion of the profile workpiece (10) which exceeds one circle.

3. A profile cutting device according to claim 2, characterized in that: The first supporting surface (211) and the second supporting surface (221) are both arcuate concave surfaces, and the left seat body (210) and the right seat body (220) can be detachably mounted on the workbench (100).

4. A profile cutting device according to claim 2, characterized in that: The left seat body (210) and the right seat body (220) are both provided with a front limit plate (710) and a rear limit plate (720) for preventing the overlapping portion of the profile workpiece (10) exceeding one circle from moving forward and backward, and the front limit plate (710), the rear limit plate (720), the first support surface (211) and the second support surface (221) together form a limit space.

5. A profile cutting device according to claim 4, characterized in that: The upper ends of the front limiting plate (710) and the rear limiting plate (720) are both provided with arc guide angles for guiding the profile workpiece (10) to be inserted downward into the limiting space.

6. The profile cutting device according to claim 1, characterized in that: The positioning bracket (300) comprises a vertical beam (310) fixed to the workbench (100) and a horizontal beam (320) orthogonal to the vertical beam (310); a positioning assembly (400) is slidably provided on the upper part of the vertical beam (310); a positioning assembly (400) is slidably provided at both ends of the horizontal beam (320) along the length direction thereof; and both the vertical beam (310) and the horizontal beam (320) are provided with a scale (800) extending along the length direction thereof.

7. A profile cutting device according to claim 6, characterized in that: The vertical beam member (310) and the cross beam member (320) are made of magnetic material, and the positioning assembly (400) comprises an adjustment seat and a magnetic attraction member rotatably arranged on the adjustment seat, the magnetic attraction member can be rotated to adsorb and fix the adjustment seat on the vertical beam member (310) or the cross beam member (320), and the magnetic attraction member can be rotated to make the adjustment seat detach from the vertical beam member (310) or the cross beam member (320).

8. The profile cutting device according to claim 7, characterized in that: The adjustment seat located on the vertical beam (310) is also provided with a receiving groove (410) with an opening adapted to the profile workpiece (10) and a rotary clamping cylinder (420) movably arranged at the opening of the receiving groove (410).

9. The profile cutting device according to claim 6, characterized in that: The cross beam (320) is connected to the vertical beam (310) via a lifting and adjusting mechanism (900).

10. The profile cutting device according to claim 9, characterized in that: The vertical beam (310) is provided with a sliding guide groove (311) along its height direction, and a sliding block portion which can be reciprocated and lifted in the sliding guide groove (311) is provided in the middle of the cross beam (320), and the lifting adjustment mechanism (900) comprises a fastening bolt (910) passing through the cross beam (320) and a plurality of positioning holes (920) arranged at intervals along the height direction of the vertical beam (310), and the fastening bolt (910) is correspondingly connected to one of the positioning holes (920) to adjust the height position of the cross beam (320).

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