Sectional material cutting rack and sectional material cutting machine

Abstract

The utility model provides a profile cutting rack and a profile cutting machine, and belongs to the technical field of profile machining devices. The sectional material cutting rack comprises a rack body, the rack body is provided with a bearing table and a sliding rail parallel to the bearing table, and the bearing table is provided with a sectional material fixing assembly. A mounting frame is slidably mounted in the extending direction of the sliding rail and provided with a mounting assembly used for detachably mounting the handheld cutting machine. The sectional material cutting machine can be formed by installing the handheld cutting machine on the machine frame body in a combined mode. After a profile to be machined is fixed to the rack body through the profile fixing assembly, the mounting frame is pushed along the sliding rail, and then the handheld cutting machine can be used for cutting the profile in the length direction. And a user does not need to independently purchase large processing equipment for processing the profile in the length direction, so that the cost is saved. And after use, the handheld cutting machine can be independently detached for continuous use, so that the flexibility is high.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of profile processing devices, and more particularly to a profile cutting machine frame and a profile cutting machine. BACKGROUND

[0002] A profile refers to a metal material of various cross-sectional shapes obtained through processing techniques such as extrusion, stretching, and molding. The profile often needs to be subjected to certain cutting processing during use. The cutting processing of the profile not only includes fixed-length cutting of the profile, but sometimes also requires cutting part of the profile structure along the length direction. Since the profile is relatively long, cutting processing along the length direction is more difficult.

[0003] To solve the above problems, the Chinese utility model patent with publication number CN217799338U discloses a long-stroke cutting machine, which fixes the profile on a material carrying mechanism and cuts it through a cutting mechanism. However, in many existing long-stroke cutting machines including the above-mentioned disclosed patent, the cutting mechanism is designed as part of the entire cutting machine. For some use scenarios, the user sometimes needs to use the existing handheld cutting machine for handheld processing, but when processing the profile along the length direction, the user does not want to use additional equipment and only wants to be able to limit the handheld cutting machine to a certain extent for operation, while ensuring cutting straightness and avoiding the cost of purchasing a new large-scale device. The existing cutting machine cannot meet this demand. SUMMARY

[0004] The utility model provides a profile cutting machine frame and a profile cutting machine, which can fix the existing small handheld cutting machine and the profile to be processed, and process the profile along the length direction.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application provides a profile cutting machine frame, which comprises a frame body, the frame body is provided with a bearing table and a sliding rail arranged in parallel with the bearing table, the bearing table is provided with a profile fixing assembly; an installation frame is slidably installed along the extension direction of the sliding rail, and the installation frame is provided with an installation assembly for detachably installing a handheld cutting machine. The handheld cutting machine is installed on the frame body, and the profile to be processed is fixed on the bearing table through the profile fixing assembly. By pushing the installation frame along the sliding rail, the handheld cutting machine can be used to cut the profile along the length direction. The positioning of the profile cutting machine frame can ensure the cutting quality. The user can use the profile cutting machine frame to process the profile along the length direction by cooperating with the handheld cutting machine, without the need to purchase a large-scale processing device separately, thereby saving costs. After use, the handheld cutting machine can be detached and used alone, which is flexible.

[0006] Optionally, the mounting assembly comprises an upper clamping piece, a lower clamping piece and a locking bolt, the upper clamping piece is slidingly installed to the slide rail, the lower clamping piece is connected to the upper clamping piece through the locking bolt, and a limiting groove for accommodating the handheld cutting machine is formed between the upper clamping piece and the lower clamping piece. The handheld cutting machine is placed in the limiting groove, and the upper clamping piece and the lower clamping piece are fastened through the locking bolt, so that the handheld cutting machine is fixed, and the installation is convenient.

[0007] Optionally, the mounting rack further comprises two sliding blocks arranged side by side and spaced apart, both of the two sliding blocks are slidingly installed to the slide rail, the upper clamping piece is fixedly connected between the two sliding blocks, and opposite side walls of both of the two sliding blocks are provided with vertical sliding grooves located at the bottom of the upper clamping piece, and the two ends of the lower clamping piece are slidingly limited in the vertical sliding grooves. The vertical sliding grooves limit the position of the lower clamping piece, facilitating the alignment operation of the lower clamping piece and the upper clamping piece.

[0008] Optionally, the mounting assembly further comprises a limiting bolt, the opposite side walls of both of the two vertical sliding grooves are provided with connecting holes extending along the direction of the vertical sliding grooves, and the limiting bolt is screwed and connected to the lower clamping piece from the side of the sliding block away from the mounting assembly through the connecting holes. The lower clamping piece is fixed to the upper clamping piece and the sliding block through the locking bolt and the limiting bolt at the same time, which ensures the relative fixation of the position of the lower clamping piece and the upper clamping piece, ensures the stability of the handheld cutting machine during processing, and ensures the processing quality. The connecting holes extend along the direction of the vertical sliding grooves, which will not affect the adjustment of the vertical position of the lower clamping piece.

[0009] Optionally, the profile fixing assembly comprises a pressing bolt and a support seat fixedly connected to the rack body, the support seat is screw-connected with a support extending to the top of the bearing table, and the pressing bolt is screwed and passed through the support from the top. The bottom end of the pressing bolt passing through the support is an extrusion end for pressing and abutting against the profile. After the profile is placed on the bearing table, the profile is pressed and fixed by screwing the pressing bolt.

[0010] Optionally, the profile fixing assembly is further provided with a pad, and the pad is used to be placed on the profile, and the extrusion end of the pressing bolt is pressed and abutted against the top end of the pad. Since the sizes of different profiles are different, the height difference can be compensated by the pad with different heights. At the same time, the contact area between the pad and the profile is larger than the contact area between the profile and the pressing bolt, which can avoid damaging the profile.

[0011] Optionally, the profile fixing assembly has a plurality of groups, and the plurality of groups of profile fixing assemblies are distributed along the extension direction of the bearing table. Extruding and fixing the profile at multiple positions along the length direction can make the profile more stable and avoid the profile from being skewed during processing.

[0012] Optionally, the rack body further comprises a first anchor connecting pin, a second anchor connecting pin, a vertical support column and a transverse support beam, the vertical support column, the transverse support beam and the slide rail are perpendicular to each other; the vertical support column, the transverse support beam and the slide rail are all made of rectangular frame section bars with mounting slide rails; the end of the transverse support beam is vertically slidably mounted on the vertical support column through the first anchor connecting pin, and the end of the slide rail is transversely slidably and axially rotatably mounted on the transverse support beam through the second anchor connecting pin; the mounting rack is provided with a rectangular sliding hole, and the mounting rack is slidably sleeved on the outside of the slide rail through the rectangular sliding hole. The transverse support beam can slide along the vertical support column to adjust the height position of the slide rail, the slide rail can slide along the transverse support beam to adjust the horizontal position, and the mounting rack slidably arranged on the slide rail can realize the adjustment of the spatial three-dimensional orientation of the handheld cutting machine, so that the saw blade of the handheld cutting machine is aligned with the section bar. At the same time, the slide rail can rotate along its axis to realize the adjustment of the cutting angle. The rectangular sliding hole and the slide rail made of the rectangular frame section bar can avoid the rotation of the mounting rack along the slide rail, and ensure the stability of the orientation of the handheld cutting machine.

[0013] Optionally, the bearing table comprises a limiting plate and a plurality of mounting beams arranged in parallel and spaced apart along the extension direction of the bearing table, each of the plurality of mounting beams extends perpendicularly to the extension direction of the bearing table, a slot is formed in the top of each mounting beam along the extension direction thereof, the limiting plate is vertically inserted into the slot, one end of the limiting plate abuts against the end of the slot, and the other end of the limiting plate has a supporting wall for abutting against the section bar. After the section bar is placed on the bearing table, it abuts against the supporting walls on the plurality of limiting plates at the same time, so that the section bar can be parallel to the slide rail, and alignment is facilitated. The size of the limiting plate and the position of the supporting wall can be replaced and adjusted according to the size of the section bar, so as to adapt to different section bars.

[0014] A section bar cutting machine comprises a handheld cutting machine and the section bar cutting rack shown in any one of the above embodiments, and the handheld cutting machine is mounted on the mounting assembly. By pushing the mounting rack along the slide rail, the handheld cutting machine can be used to cut the section bar in the length direction. The user can use the section bar cutting machine to process the section bar in the length direction, without the need to separately purchase large-scale processing equipment, thereby saving costs. After use, the handheld cutting machine can be detached and used separately, which is flexible.

[0015] The technical scheme of the present application has the following beneficial effects over the prior art:

[0016] The existing handheld cutting machine is mounted on the section bar cutting rack to form a section bar cutting machine, which can process the section bar in the length direction. After processing, the handheld cutting machine can be detached and used separately. Since there is no need to separately purchase large-scale processing equipment, the structure of the section bar cutting rack is simple, the processing cost is saved, and the flexibility is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0018] Figure 1 Figure 1 is a schematic diagram of the overall structure of a profile cutting rack;

[0019] Figure 2 Figure 2 is a schematic diagram of the structure of a mounting rack;

[0020] Figure 3 Figure 3 is an exploded view of the structure of a mounting rack;

[0021] Figure 4 Figure 4 is a schematic diagram of the structure of a profile fixing assembly;

[0022] Figure 5 Figure 5 is an exploded view of the connection structure of a slide rail, a vertical support column and a horizontal support beam;

[0023] Figure 6 Figure 6 is a schematic diagram of the overall structure of a profile cutting machine;

[0024] Figure 7 Figure 7 is a schematic diagram of the overall structure of a profile cutting machine after angle adjustment;

[0025] Figure 8 Figure 8 is a schematic diagram of the structure of a bearing table.

[0026] Figure legend: 100, handheld cutting machine; 200, profile; 1, rack body; 101, first anchor type connecting pin; 102, second anchor type connecting pin; 103, vertical support column; 104, horizontal support beam; 2, bearing table; 201, limiting plate; 202, mounting beam; 203, slot; 204, support wall; 3, slide rail; 4, profile fixing assembly; 401, compression bolt; 402, support seat; 403, support piece; 404, cushion block; 5, mounting rack; 501, upper clamping piece; 502, lower clamping piece; 503, locking bolt; 504, limiting groove; 505, sliding block; 506, vertical sliding groove; 507, limiting bolt; 508, connecting hole; 509, rectangular sliding hole; 510, cushion plate. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0028] Embodiment 1:

[0029] The embodiment provides a profile cutting rack based on Figure 1 and Figure 6 As shown in the figure, the rack body 1 is provided with a bearing table 2 and a slide rail 3 arranged in parallel with the bearing table 2, and the bearing table 2 is provided with a profile fixing assembly 4. The bearing table 2 is used for placing a profile 200 to be processed, and the profile fixing assembly 4 is used for fixing the position of the profile 200. An installation rack 5 is slidingly installed along the extension direction of the slide rail 3, and the installation rack 5 is provided with an installation assembly for detachably installing a handheld cutting machine 100. In use, the handheld cutting machine 100 is installed on the rack body 1, and the profile 200 to be processed is fixed on the bearing table 2 through the profile fixing assembly 4. The handheld cutting machine 100 is aligned with the part to be cut, and the profile 200 can be cut in the length direction by the handheld cutting machine 100 by pushing the installation rack 5 along the slide rail 3. The quality of cutting can be ensured due to the positioning of the profile cutting rack on the profile 200. The user can realize the processing of the profile 200 in the length direction by the profile cutting rack combined with the handheld cutting machine 100, without the need to separately purchase large processing equipment, thereby saving the cost. After use, the handheld cutting machine 100 can be detached and used alone, and the flexibility is high.

[0030] Further, based on Figures 1 to 3 As shown in the figure, the installation assembly comprises an upper clamping piece 501, a lower clamping piece 502 and a locking bolt 503. The upper clamping piece 501 is slidingly installed to the slide rail 3, the lower clamping piece 502 is connected to the upper clamping piece 501 through the locking bolt 503, and a limiting groove 504 for accommodating the handheld cutting machine 100 is formed between the upper clamping piece 501 and the lower clamping piece 502. In use, the lower clamping piece 502 is split from the upper clamping piece 501, the handheld cutting machine 100 is placed in the limiting groove 504, and then the upper clamping piece 501 and the lower clamping piece 502 are fastened through the locking bolt 503, so that the handheld cutting machine 100 can be fixed, and the installation is convenient.

[0031] In the embodiment, the upper clamping piece 501 and the lower clamping piece 502 are both in a semicircular ring structure, and the semicircular grooves in the two are opposite and combined into the limiting groove 504 to clamp the handheld cutting machine 100. Of course, the shape and structure of the upper clamping piece 501 and the lower clamping piece 502 can also have other settings. For example, the limiting groove 504 is located only in the upper clamping piece 501 or only in the lower clamping piece 502, and the lower clamping piece 502 or the upper clamping piece 501 corresponds to the limiting groove 504 closed only by the cover. Those skilled in the art can reasonably set according to the shape of the outer wall of the handheld cutting machine 100.

[0032] Further, based on Figures 1 to 3As shown, the mounting rack 5 further comprises two sliding blocks 505 arranged side by side and spaced apart, both of which are slidingly installed on the slide rail 3, and the upper clamping piece 501 is fixedly connected between the two sliding blocks 505. The opposite side walls of the two sliding blocks 505 are both provided with a vertical sliding groove 506 located at the bottom of the upper clamping piece 501, and the two ends of the lower clamping piece 502 are slidingly limited in the vertical sliding groove 506. At this time, the lower clamping piece 502 can only slide along the vertical sliding groove 506, facilitating the alignment operation of the lower clamping piece 502 and the upper clamping piece 501.

[0033] In the embodiment, the bottom of the vertical sliding groove 506 is open, and the lower clamping piece 502 can be taken out from the bottom of the vertical sliding groove 506. The handheld cutting machine 100 can be inserted from the gap between the bottoms of the two sliding blocks 505, and then the lower clamping piece 502 is inserted and mounted from the bottom of the vertical sliding groove 506. This setting facilitates the installation of the handheld cutting machine 100, avoiding the situation that the end of the handheld cutting machine 100 is too large to be inserted into the limiting groove 504 from the side.

[0034] Further, based on Figure 3 As shown, the mounting assembly further comprises a limiting bolt 507, and the opposite side walls of the two vertical sliding grooves 506 are both provided with a connecting hole 508 extending along the direction of the vertical sliding groove 506, and the limiting bolt 507 passes through the connecting hole 508 from the side of the sliding block 505 away from the mounting assembly and is screw-connected with the lower clamping piece 502. The lower clamping piece 502 is fixed with the upper clamping piece 501 and the sliding block 505 through the locking bolt 503 and the limiting bolt 507 at the same time, which ensures the relative fixation of the position of the lower clamping piece 502 and the upper clamping piece 501, ensures the stability of the handheld cutting machine 100 during processing, and guarantees the processing quality. The number of limiting bolts 507 can be designed to be multiple according to actual conditions to increase the connection strength. The connecting hole 508 extends along the direction of the vertical sliding groove 506, which does not affect the adjustment of the vertical position of the lower clamping piece 502.

[0035] Preferably, the mounting assembly can be matched with a backing plate 510, which is located on the side of the connecting hole 508 away from the lower clamping piece 502. The limiting bolt 507 extends into the connecting hole 508 after passing through the backing plate 510. The head of the limiting bolt 507 abuts against the backing plate 510. The backing plate 510 can increase the contact area with the sliding block 505, avoid damaging the sliding block 505 by the limiting bolt 507, and increase the stability of the connection.

[0036] Further, based on Figure 4As shown, the profile fixing assembly 4 comprises a pressing bolt 401 and a support seat 402 fixedly connected to the rack body 1, and the support seat 402 is bolted with a support piece 403 extending to the top of the bearing table 2. The support piece 403 can be made of plate material or block material. The pressing bolt 401 is screwed from the top through the support piece 403, and the bottom end of the pressing bolt 401 through the support piece 403 is an extrusion end for pressing abutting with the profile 200. After the profile 200 is placed on the bearing table 2, the extrusion end of the pressing bolt 401 can press and fix the position of the profile 200 by screwing the pressing bolt 401, so as to avoid the profile 200 from shaking during processing.

[0037] Preferably, the profile fixing assembly 4 is also provided with a pad 404, which is used to be placed on the profile 200, and the extrusion end of the pressing bolt 401 is pressed against the top end of the pad 404. The pad 404 can be made of square tube or separate block material. Since the sizes of different profiles 200 are different, the height difference can be compensated by the pad 404 with different heights. At the same time, the contact area of the pad 404 with the profile 200 is larger than that of the profile 200 directly extruded by the pressing bolt 401, which can avoid crushing the profile 200.

[0038] Preferably, based on Figure 1 As shown, the profile fixing assembly 4 has several groups, such as two groups or three groups, and the specific number can be determined according to the length of the profile 200 to be processed. The several groups of profile fixing assemblies 4 are distributed at intervals along the extension direction of the bearing table 2. The profile 200 is extruded and fixed at multiple positions along the length direction, which can make the profile 200 more stable and avoid the profile 200 from being skewed during processing.

[0039] Further, based on Figures 5 to 7As shown, the rack body 1 further comprises a first anchor connecting pin 101, a second anchor connecting pin 102, a vertical support column 103 and a transverse support beam 104, the vertical support column 103, the transverse support beam 104 and the slide rail 3 being perpendicular to each other. The vertical support column 103, the transverse support beam 104 and the slide rail 3 are all made of rectangular frame section bars with mounting slide rails. Among them, the rectangular frame section bar with mounting slide rails is a common section bar used for assembling a rack, that is, rectangular section bars with X-shaped cross sections are assembled with each other. The surfaces thereof are provided with mounting slide rails to facilitate the assembly of the rectangular frame section bars with each other, and the structure thereof will not be described in detail. The end of the transverse support beam 104 is vertically and slidably mounted on the vertical support column 103 through the first anchor connecting pin 101, and the end of the slide rail 3 is transversely and slidably and axially rotatably mounted on the transverse support beam 104 through the second anchor connecting pin 102. The anchor connecting pin is also a common component for assembling the above-mentioned rectangular frame section bar with mounting slide rails. The assembly of the rectangular frame section bars at different angles and positions through the corresponding anchor connecting pins belongs to the prior art and will not be described in detail. Loosening the first anchor connecting pin 101 can realize the vertical position adjustment of the transverse support beam 104, and after the position adjustment of the transverse support beam 104 is completed, the first anchor connecting pin 101 is locked to fix the transverse support beam 104. Loosening the second anchor connecting pin 102 can realize the transverse position adjustment of the slide rail 3 and can make the slide rail 3 rotate along the axial direction thereof. After the orientation adjustment of the slide rail 3 is completed, the second anchor connecting pin 102 is locked to fix the slide rail 3. The mounting rack 5 is provided with a rectangular slide hole 509, and the mounting rack 5 is slidably sleeved on the outside of the slide rail 3 through the rectangular slide hole 509. Through the position adjustment of the transverse support beam 104, the slide rail 3 and the mounting rack 5, the spatial three-dimensional orientation adjustment of the handheld cutting machine 100 can be realized, so that the saw blade of the handheld cutting machine 100 is aligned with the section bar 200. The rectangular slide hole 509 and the slide rail 3 made of the rectangular frame section bar can avoid the rotation of the mounting rack 5 along the slide rail 3, and ensure the stability of the orientation of the handheld cutting machine 100.

[0040] Further, based on Figure 4 and Figure 8 As shown, the bearing table 2 comprises a limiting plate 201 and a plurality of mounting beams 202 arranged in parallel and spaced apart along the extension direction of the bearing table 2. The number of the mounting beams 202 can be reasonably designed according to the size of the section bar 200 to be processed. The mounting beams 202 all extend perpendicular to the extension direction of the bearing table 2, and a slot 203 is formed along the top of each mounting beam 202 along the extension direction thereof, the limiting plate 201 is vertically inserted into the slot 203, and one end of the limiting plate 201 abuts against the end of the slot 203. The other end of the limiting plate 201 has a supporting wall 204 for abutting against the section bar 200.

[0041] In the embodiment, the bearing table 2 can also be assembled by rectangular frame section bars with mounting slide rails and anchor type connecting pins. The main part of the whole rack body 1 is assembled by rectangular frame section bars, which is more convenient. The mounting slide rail on the rectangular frame section bar can be used as the slot 203. One end of the limiting plate 201 abuts against the end of the slot 203, that is, abuts against the side wall of the rectangular frame section bar shielding the end of the mounting beam 202. In use, the section bar 200 is placed on the bearing table 2 and abuts against the supporting wall 204 on the limiting plate 201 at the same time, so that the section bar 200 can be parallel to the slide rail 3, facilitating alignment. The limiting plate 201 is convenient to disassemble and assemble, and its size and the position of the supporting wall 204 can be replaced and adjusted according to the size of the section bar 200, so as to adapt to different section bars 200.

[0042] Of course, the mounting beam 202 can also be made of rectangular frame section bars, and only the slot 203 is needed to be provided on the top of the mounting beam 202. The end of the slot 203 is closed, so that one end of the limiting plate 201 abuts against the end of the slot 203.

[0043] Embodiment 2

[0044] A section bar cutting machine based on the section bar cutting machine rack shown in the embodiment 1 and the handheld cutting machine 100 shown in the embodiment 2. Figure 6 and Figure 7 As shown, the section bar cutting machine comprises the handheld cutting machine 100 and the section bar cutting machine rack shown in the embodiment 1. The handheld cutting machine 100 is installed on the mounting assembly.

[0045] In use, the section bar 200 to be processed is placed on the bearing table 2 and is tightly fixed by the section bar fixing assembly 4. The handheld cutting machine 100 is installed on the mounting rack 5, and the height position of the transverse supporting beam 104, the horizontal and angle positions of the slide rail 3, and the position of the mounting rack 5 on the slide rail 3 are adjusted, so that the saw blade on the handheld cutting machine 100 is aligned with the end of the part to be processed on the section bar 200. The handheld cutting machine 100 is started, and the mounting rack 5 is pushed along the slide rail 3, so that the section bar 200 can be cut in the length direction. The user does not need to separately purchase large processing equipment, which saves cost. After use, the handheld cutting machine 100 can be disassembled and used alone, which is flexible.

[0046] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A profile cutting frame, comprising a frame body (1), a bearing table (2) and a slide rail (3) arranged in parallel with the bearing table (2) are arranged on the frame body (1), and a profile fixing assembly (4) is arranged on the bearing table (2); characterized in that An installation frame (5) is slidingly installed along the extension direction of the slide rail (3), and the installation frame (5) is provided with an installation assembly for detachably installing a handheld cutting machine (100); The installation assembly comprises an upper clamping piece (501), a lower clamping piece (502) and a locking bolt (503), the upper clamping piece (501) is slidingly installed to the slide rail (3), the lower clamping piece (502) is connected with the upper clamping piece (501) through the locking bolt (503), and a limiting groove (504) for accommodating the handheld cutting machine (100) is formed between the upper clamping piece (501) and the lower clamping piece (502).

2. The profile cutting machine frame of claim 1, wherein: The installation frame (5) further comprises two sliding blocks (505) arranged in parallel and spaced apart, both of which are slidingly installed to the slide rail (3), the upper clamping piece (501) is fixedly connected between the two sliding blocks (505), and the opposite side walls of the two sliding blocks (505) are both provided with a vertical sliding groove (506) located at the bottom of the upper clamping piece (501), and the two ends of the lower clamping piece (502) are slidingly limited in the vertical sliding groove (506).

3. The profile cutting machine frame of claim 2, wherein: The installation assembly further comprises a limiting bolt (507), the opposite side walls of the two vertical sliding grooves (506) are both provided with a connecting hole (508) extending along the vertical sliding groove (506), and the limiting bolt (507) is connected with the lower clamping piece (502) by penetrating through the connecting hole (508) from the side of the sliding block (505) away from the installation assembly.

4. A profile cutting machine frame as claimed in claim 1 or 2 or 3, characterized in that: The profile fixing assembly (4) comprises a pressing bolt (401) and a support seat (402) fixedly connected to the frame body (1), the support seat (402) is bolted with a support piece (403) extending to the top of the bearing table (2), the pressing bolt (401) is screwed through the support piece (403) from the top, and the bottom end of the pressing bolt (401) penetrating through the support piece (403) is an extrusion end for pressing against the profile (200).

5. The profile cutting machine frame of claim 4, wherein: The profile fixing assembly (4) is further provided with a pad (404), the pad (404) is used for being placed on the profile (200), and the extrusion end of the pressing bolt (401) is in pressing abutment with the top end of the pad (404).

6. A profile cutting machine frame as claimed in claim 1 or 2 or 3, characterized in that: The profile fixing assembly (4) has a plurality of groups, and the plurality of groups of the profile fixing assembly (4) are distributed in the extension direction of the bearing table (2).

7. A profile cutting machine frame as claimed in claim 1 or 2 or 3, characterized in that: The rack body (1) further comprises a first anchor connecting pin (101), a second anchor connecting pin (102), a vertical support column (103) and a transverse support beam (104), the vertical support column (103), the transverse support beam (104) and the slide rail (3) are perpendicular to each other; the vertical support column (103), the transverse support beam (104) and the slide rail (3) are all made of rectangular frame section bars with mounting slide rails, the end of the transverse support beam (104) is vertically slidably mounted on the vertical support column (103) through the first anchor connecting pin (101), and the end of the slide rail (3) is transversely slidably and axially rotatably mounted on the transverse support beam (104) through the second anchor connecting pin (102); the mounting frame (5) is provided with a rectangular slide hole (509), and the mounting frame (5) is slidably sleeved outside the slide rail (3) through the rectangular slide hole (509).

8. The profile cutting machine frame according to claim 1 or 2 or 3, characterized in that: The bearing table (2) comprises a limiting plate (201) and a plurality of mounting beams (202) arranged in parallel and at intervals along the extension direction of the bearing table (2), each of the plurality of mounting beams (202) extends perpendicularly to the extension direction of the bearing table (2), a slot (203) is formed in the top of each of the mounting beams (202) along the extension direction thereof, the limiting plate (201) is vertically inserted into the slot (203), one end of the limiting plate (201) abuts against the end of the slot (203), and the other end of the limiting plate (201) is provided with a supporting wall (204) for abutting against a section bar.

9. A profile cutting machine, characterized by: The profile cutting rack comprises a handheld cutting machine (100) and a section bar cutting rack as claimed in any one of claims 1-8, and the handheld cutting machine (100) is mounted on the mounting assembly.

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