CN214264127U

CN214264127U - Cutting unit and cutting machine with improved rigid frame structure

Info

Publication number: CN214264127U
Application number: CN202022963284.8U
Authority: CN
Inventors: 唐明星
Original assignee: Hunan Jinlixing Machinery Technology Co ltd
Current assignee: Hunan Jinlixing Machinery Technology Co ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-09-24
Anticipated expiration: 2030-12-12

Abstract

A cutting unit and a cutting machine with an improved rigid frame structure, including a rigid frame, a swing frame body and a cutting platform, the rigid frame includes a front vertical plate, a rear vertical plate, and a left side plate connecting the front vertical plate and the rear vertical plate and arranged at left and right intervals and the right side plate, characterized in that the left side plate is higher than the right side plate, the upper part of the left side plate includes an upright part and a flat plate part connected to the upright part; A vertical plate is located on the front side of the cutting platform, and the first vertical plate is combined with the cutting platform to form a two-dimensional positioning reference for the profile in two directions; it also includes a support rod, a cover body and a traction cylinder, and the cover body is fixedly connected to the On the top of the support rod, the output shaft end of the traction cylinder is hinged to the support rod, the bottom end of the support rod and the fixed end of the traction cylinder are arranged at intervals and hinged on the flat plate, and the support rod and the traction cylinder are located in front of the first vertical plate; When the pulling cylinder pulls the support rod to swing, the cover body can be switched between at least two working positions.

Description

Cutting unit and cutting machine with improved rigid frame structure

Technical Field

The invention relates to the technical field of aluminum material cutting machines, in particular to a cutting unit with an improved rigid frame structure and a cutting machine applying the cutting unit.

Background

Double-end cutting machine product has been known gradually by people because of having good cutting function and higher machining efficiency, and current double-end cutting machine product is generally only to the saw bit position that is used for the cutting to protect in order to improve product security, for example sets up the swing support body in order to accomodate the saw bit or set up the protection casing in order to prevent that the saw dust that produces from splashing when cutting the section bar from hindering the people. As disclosed in the earlier patent No. cn202010376100.x entitled "saw blade cutting unit with saw cutting positioning and double-head saw cutting machine" of the present applicant, the double-head saw cutting machine includes a saw blade cutting base, an angle adjustment seat, and a saw blade cutting assembly; the saw blade cutting base is characterized in that the saw blade cutting base is a rigid frame and comprises angle adjusting support plates which are respectively located at the front side and the rear side, namely a front angle adjusting support plate and a rear angle adjusting support plate, the angle adjusting base comprises a main base body and front connecting arms and rear connecting arms which are located at the two ends of the main base body, the saw blade cutting assembly comprises a saw blade driving motor and a metal circular saw blade, the metal circular saw blade is installed on an output shaft of the saw blade driving motor, and the saw blade cutting assembly can be arranged on the main base body in a front-rear moving mode along the front-rear transverse direction. The structure of the cutting machine of the above-described structure, particularly the structure of the rigid frame, needs to be improved so that the cutting machine can be applied to more occasions and the structural stability is improved.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a cutting unit with an improved rigid frame structure, which comprises a rigid frame, a swinging frame body and a cutting platform, wherein the rigid frame comprises a front vertical plate, a rear vertical plate, a left side plate and a right side plate which are connected with the front vertical plate and the rear vertical plate and are arranged at intervals left and right; the left side plate is higher than the right side plate, and the upper part of the left side plate comprises an upright part and a flat plate part connected with the upright part; a first vertical plate is vertically arranged on the flat plate part and is positioned at the front side of the cutting platform, and the first vertical plate and the cutting platform are combined to form a two-dimensional positioning reference of the section bar in two directions; the support plate is characterized by further comprising a support rod, a cover body and a traction cylinder, wherein the cover body is fixedly connected to the top of the support rod, the output shaft end of the traction cylinder is hinged to the support rod, the bottom end of the support rod and the fixed end of the traction cylinder are arranged in a front-back interval mode and hinged to the flat plate portion, and the support rod and the traction cylinder are located in front of the first vertical plate; when the traction cylinder pulls the supporting rod to swing, the cover body can be switched at least between two working positions, the first working position is that the cover body covers the cutting platform and the upper portion of the first vertical plate, and the second working position is that the cover body leaves the upper portion of the cutting platform.

The rigid frame is a main supporting component of the cutting unit, and not only provides support for the swing frame body, but also provides a good supporting foundation for the cutting platform, the supporting rod, the traction cylinder and the like; further the rigid frame may also be of integrally formed construction to provide greater structural strength.

The cutting platform is used for supporting the section bar in the up-down direction, and can be integrally formed with the rear vertical plate, or can be manufactured separately from the rear vertical plate and detachably mounted above the rear vertical plate.

The left side plate is higher than the right side plate and has a relative height viewed in the horizontal direction, and the upper part of the left side plate comprises an upright part and a flat plate part connected to the upright part, so that on one hand, the L-shaped corner structure formed by the flat plate part and the upright part enhances the structural strength of the upper part of the left side plate and even the whole rigid frame, and a supporting platform with a larger area can be provided for other components (such as the first upright plate, the supporting rod and the traction cylinder) through the flat plate part, thereby facilitating the connection of the components; on the other hand the left side board can with preceding riser, back riser combination form around the protective wall body that the swing support body arranged is favorable to protecting the swing support body.

The two-dimensional positioning reference is a reference which defines an included angle between two directions, and the included angle can be any angle larger than 0 and smaller than 180 degrees, such as two direction references perpendicular to each other, which are most common in practical application.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that: firstly, because the left side plate is higher than the right side plate, and the support rod and the traction cylinder are arranged on the flat plate part of the left side plate, the height of the support rod and the telescopic stroke of the traction cylinder can be relatively shortened, and the strength and the stability of a triangular structure formed by the flat plate part, the support rod and the traction cylinder are relatively improved; secondly, as the flat plate part is arranged on the vertical part, the supporting area of the upper surface of the flat plate part is greatly increased on the basis of ensuring the structural strength of the upper part of the left side plate, and more importantly, a large-area positioning reference surface can be processed by means of the upper surface of the flat plate part, so that more other components needing to be positioned, such as the supporting rod, the traction cylinder, the first vertical plate, a material measuring height device to be mentioned later and the like, can be positioned; thirdly, the upper surface of the flat plate part provides a positioning reference for the first vertical plate, so that the two-dimensional positioning reference of the first vertical plate and the cutting platform combined forming section in two directions is relatively easily realized, and the section is conveniently positioned in at least two directions of X-Y; fourthly, the cover body can be switched between at least two working positions due to the fact that the traction cylinder pulls the supporting rod to swing, and safety and use convenience are improved; and fifthly, the left side plate can be combined with the front vertical plate and the rear vertical plate to form a protective wall body arranged around the swing frame body, so that the swing frame body is protected.

The technical scheme can be further that the upright part and the flat plate part on the upper part of the left side plate are integrally formed, the flat plate part extends out in a suspended mode from the upright part to the right side plate, and the rib plate connected with the upright part is arranged at the lower part of the flat plate part. Wherein the integrally formed upright portion and flat plate portion provide the left side plate with better structural strength; and the rib plate arranged at the lower part of the flat plate part can provide auxiliary supporting force for the suspended part of the flat plate part, so that the structural strength of the upper part of the left side plate is greatly improved, and a stable foundation is provided for connecting the first vertical plate, the supporting rod and the traction cylinder.

The further technical scheme can also be that the cutting platform is detachably mounted on the rear vertical plate, and the upper surface of the cutting platform is perpendicular to the rear side surface of the first vertical plate. The detachable cutting platform is favorable for enabling the cutting platform to be capable of independently processing and horizontally adjusting during installation, so that the upper surface of the cutting platform and the rear side surface of the first vertical plate provide two-dimensional positioning reference in the horizontal direction and the vertical direction for the sectional material.

The technical scheme can be that the supporting rod comprises an upper rod body and a lower rod body, an included angle is formed between the upper rod body and the lower rod body, and when the cover body covers the upper part of the cutting platform, the lower rod body is perpendicular to the upper surface of the cutting platform; when the cover body moves away from the upper part of the cutting platform, the upper rod body is vertical to the upper surface of the cutting platform. The upper rod body is used for connecting the cover body, and the lower rod body is used for connecting the flat plate part; when the cover body covers above the cutting platform, the lower rod body is perpendicular to the flat plate part, and the upper rod body inclines forwards to support the cover body, so that the support rod is prevented from interfering with the first vertical plate; and when the cover body moves away from the upper part of the cutting platform, the upper rod body is further far away from the first vertical plate and provides good support for the cover.

The invention discloses a cutting machine, which comprises a horizontal frame and two cutting units, wherein the horizontal frame is provided with a linear sliding rail, the two cutting units are arranged at the left and right sides, one cutting unit is fixedly arranged at the left side of the horizontal frame, and the other cutting unit is arranged on the linear sliding rail in a sliding manner. Like this, the cutting machine not only can cut the both ends of section bar, all obtains on two cutting units moreover the protection of cover body improves greatly the security of cutting machine.

The further technical scheme can also be that a material height measuring device used for measuring the height of the section is further arranged on the first vertical plate of the cutting unit arranged on the linear sliding rail in a sliding mode, the material height measuring device comprises an upper pressing plate used for pressing against the section, and the upper pressing plate can be arranged above the cutting platform in a vertically moving mode. Therefore, the height of the section bar can be detected by the material height measuring device, and a user can cut the section bar with a required length only by adjusting the distance between the two cutting units and the cutting angle of the saw blade.

The further technical scheme can also be that a first horizontal clamping cylinder is arranged on a rear vertical plate of the rigid frame, and a cylinder head of the first horizontal clamping cylinder can extend to the first vertical plate in the horizontal direction so as to be matched with the first vertical plate in the horizontal direction to jointly clamp the profile placed on the upper surface of the cutting platform; this greatly improves the stability when the section bar is cut and thus improves the cutting accuracy.

The further technical scheme can also be that a material rest is arranged on the right side of the cutting unit which is arranged on the linear sliding rail in a sliding manner, and the material rest is connected to the rigid frame; the material rack is further provided with a second horizontal clamping cylinder for clamping a section bar placed on the top end face of the material rack, a second vertical plate is arranged on the material rack, the outer surface of the second vertical plate is perpendicular to the upper surface of the cutting platform, the second vertical plate is arranged at a position close to the cutting platform, and the cylinder head of the second horizontal clamping cylinder can extend to the second vertical plate in the horizontal direction so as to be matched with the second vertical plate to clamp the section bar placed on the top end face of the material rack together in the horizontal direction. The second vertical plate is arranged at a position close to the cutting platform, so that the section is clamped by the second horizontal clamping cylinder and the second vertical plate at a position close to the cutting, and the stability of the section during cutting is further improved; in addition, the cut section bar raw materials can be clamped on the top end face of the material rack and are not easy to fall off, and the use safety of the cutting machine is improved.

Due to the above features and advantages, the present invention can be applied to a cutting unit having an improved rigid frame structure and a cutting machine using the same.

Drawings

FIG. 1 is a schematic axial view of a cutting machine to which the present invention is applied;

FIG. 2 is a schematic axial view of the movable cutting portion, showing the protective cover mechanism in a state where the cover is released;

FIG. 3 is an exploded view of the movable cutting portion;

fig. 4 is a schematic view of the rigid frame in an axial direction.

Detailed Description

The structure of a cutting unit having an improved rigid frame structure and a cutting machine using the same to which the present invention is applied will be further described with reference to the accompanying drawings.

As shown in fig. 1, the invention discloses a cutting machine, which comprises a horizontal frame 1, wherein a linear slide rail 11 is arranged on the horizontal frame 1, and the cutting machine further comprises two cutting units which are arranged left and right and have an improved rigid frame structure, namely a fixed cutting unit 2a and a movable cutting unit 2b, wherein the fixed cutting unit 2a is fixedly arranged on the left side of the horizontal frame 1, and the movable cutting unit 2b is slidably arranged on the linear slide rail 11. Since the fixed cutting unit 2a and the movable cutting unit 2b have substantially the same structure and are main components for cutting a profile, the cutting unit having an improved rigid frame structure will be further described below by taking the movable cutting unit 2b as an example.

As shown in fig. 2 to 4, the movable cutting unit 2b includes a rigid frame 3, a swing frame body 4 and a cutting platform 5, wherein the rigid frame 3 includes a front vertical plate 31, a rear vertical plate 32, and a left side plate 33 and a right side plate 34 which connect the front vertical plate 31 and the rear vertical plate 32 and are arranged at a left-right interval, so that the front vertical plate 31, the rear vertical plate 32, the left side plate 33 and the right side plate 34 define a rigid frame cavity 30 of the rigid frame 3 together; and the rigid frame 3 is of an integrally formed structure, which allows the rigid frame 3 to have better structural strength. The swing frame body 4 is arranged in the rigid frame cavity 30 between the front vertical plate 31 and the rear vertical plate 32 and can swing left and right. And the left side plate 33 of the rigid frame 4 is higher than the right side plate 34 when viewed from the horizontal direction, which is advantageous in that: on one hand, the shorter right side plate 34 can leave enough avoidance space for the swing frame body 4 to swing rightwards, so that the swing frame body 4 can be guaranteed to swing rightwards to an angle required by a design; on the other hand, the left side plate 33 is connected with the front vertical plate 31 and the rear vertical plate 32 to form a protective wall body surrounding the swing frame body 4, so that the swing frame body 4 is protected.

In order to enable the cutting unit to cut the profile, a saw blade 41, a driving motor 42 and a moving cylinder 43 are mounted on the swing frame body 4, the saw blade 41 is arranged on an output shaft of the driving motor 42, and an output rod of the moving cylinder 43 can drive the driving motor 42 and the saw blade 41 to move back and forth. The rear side of the swing frame body 4 is further provided with a cutting platform 5, the cutting platform 5 is arranged on the rear vertical plate 32, the cutting platform 5 is a component for supporting a section bar, and the swing frame body 4 can swing relative to the cutting platform 5. Therefore, the cutting unit can adjust the swing frame body 4 to swing to a designated angle, and then the driving motor 42 drives the saw blade 41 to move backwards, so that the section placed on the cutting platform 5 is cut.

In a further technical solution, the upper portion of the left side plate 33 includes an upright portion 37 and a flat plate portion 35 connected to the upright portion 37, the upright portion 37 and the flat plate portion 35 of the upper portion of the left side plate 33 are integrally formed, and the flat plate portion 35 extends from the upright portion 37 toward the right side plate 34 in a suspended manner, so that the upper portion of the left side plate 33 forms a platform protruding toward the rigid frame cavity 30, and the flat plate portion 35 not only forms a good structural strength for the upper portion of the left side plate 33, but also forms a large-area positioning reference surface on the upper surface of the flat plate portion 35 to facilitate the installation of other components. And the lower part of the flat plate part 35 is provided with a rib plate 36 connected with the upright part 37, the rib plate 36 provides auxiliary supporting force for a plurality of suspended parts arranged at intervals on the flat plate part 35, and the rib plate 36 arranged in this way is just shielded by the upright part 37 and the flat plate part 35, thereby not affecting the appearance and further enhancing the structural strength of the upper part of the left side plate 33.

In order to enable the profile to be well positioned when being cut, the cutting platform 5 arranged on the rear vertical plate 32 is one of members for positioning the profile, and the upper surface of the cutting platform 5 is a surface which is in contact with the profile and can provide a positioning reference in the horizontal direction for the profile; the first vertical plate 82 vertically disposed on the flat plate portion 35 is another positioning member, the first vertical plate 82 is located at the front side of the cutting platform 5, the rear surface of the first vertical plate 82 (i.e. the surface of the first vertical plate 82 facing the upper surface of the cutting platform 5) is a surface that contacts with the profile and is arranged perpendicular to the upper surface of the cutting platform 5, and the rear surface of the first vertical plate 82 can provide a positioning reference in the vertical direction for the profile. In other embodiments, the included angle between the upper surface of the cutting platform 5 and the rear surface of the first vertical plate 82 can be adjusted to other included angles in order to adapt to the shape of the profile appearance. Thus, the first vertical plate 82 is used in combination with the cutting platform 5 to form a two-dimensional positioning reference and a two-dimensional positioning of the profile in two directions. As shown in fig. 2, the cutting platform 5 is detachably mounted on the rear vertical plate 32, which not only facilitates the processing and manufacturing of the cutting platform 5, but also facilitates the horizontal reference adjustment of the upper surface of the cutting platform 5. A vertical plate supporting plate 83 is further disposed on the front side of the first vertical plate 82, the vertical plate supporting plate 83 includes an upper connecting plate 831, a lower connecting plate 832 and a rear connecting plate 833, the lower connecting plate 832 is connected to the flat plate portion 35, the first vertical plate 82 is connected to the rear connecting plate 833, and the first vertical plate 82 is stably connected to the flat plate portion 35 through the vertical plate supporting plate 83 and provides a horizontal support for the first vertical plate 82.

In order to improve the use safety of the cutting machine, as shown in fig. 1 to 4, a protection mechanism for preventing sawdust from splashing is further provided, the protection mechanism includes a support rod 61, a cover 62 and a traction cylinder 63, the cover 62 is fixedly connected to the top of the support rod 61, an output shaft end of the traction cylinder 63 is hinged to the support rod 61, the bottom end of the support rod 61 and a fixed end of the traction cylinder 63 are arranged at a front-rear interval and hinged to the flat plate portion 35, and thus, the traction cylinder 63, the support rod 61 and the flat plate portion 35 are connected to form a triangular frame body structure with good structural strength. In addition, the three connecting points of the traction cylinder 63, the support rod 61 and the flat plate portion 35 are all movably hinged structures, and the output shaft of the traction cylinder 63 can change the length thereof by extending outwards or contracting inwards, so that the swinging angle between the support rod 61 and the flat plate portion 35 is changed, and the position of the cover body 62 connected to the top of the support rod 61 is changed. As shown in fig. 3, the drawing cylinder 63 is arranged at the front side of the support rod 61, when the drawing cylinder 63 draws the support rod 62 to swing, the cover 62 can be switched at least between two working positions, namely, the first working position, when the output shaft of the drawing cylinder 63 extends outwards, the cover 62 covers the cutting platform 5, so that sawdust is prevented from splashing to hurt people; in a second operating position, when the output shaft of the traction cylinder 63 is retracted inwards, the cover 62 uncovers the cutting platform 5, so that the removal of the cut profile or the insertion of the profile to be cut can be facilitated.

As shown in fig. 1 to 3, the flat plate portion 35 is sequentially disposed with the traction cylinder 63, the support rod 61, the upright plate support plate 83 and the first upright plate 82 along the front-back direction, wherein the support rod 61 includes an upper rod body 611 and a lower rod body 612, the upper rod body 611 is connected to the cover 62, the lower rod body 612 is hinged to the flat plate portion 35, when the cover 62 covers the cutting platform 5, the support rod 61 is connected to the middle of the flat plate portion 35 and perpendicular to the upper surface of the cutting platform 35 in order to avoid the upright plate support plate 83 and the first upright plate 82, the upper rod body 611 and the lower rod body 612 have a certain included angle, and the upper rod body 611 is inclined forward to support the cover 62; when the cover 62 is removed from the cutting platform 5 to uncover the cutting platform 5, the upper rod 611 is perpendicular to the upper surface of the cutting platform 35, which enables the upper rod 611 to further move away from the upright supporting plate 83 and the first upright 82 and provides a vertical support for the cover 62. Meanwhile, the support rod 61 is disposed on the flat plate portion 35, and the height of the support rod 61 and the telescopic stroke of the traction cylinder 63 are relatively shortened.

In order to improve the stability of the profile during cutting, as shown in fig. 1 to 3, a first horizontal clamping cylinder 81 is disposed on the rear vertical plate 32 of the rigid frame 3, the first vertical plate 82 is disposed in front of the first horizontal clamping cylinder 81, and a cylinder head of the first horizontal clamping cylinder 81 can extend to the first vertical plate 82 in a horizontal direction so as to be capable of cooperating with the first vertical plate 82 in the horizontal direction to clamp the profile resting on the upper surface of the cutting platform 5; this greatly improves the stability of the profile in the horizontal direction. Further, a vertical clamping cylinder 84 is further disposed on the upper connecting plate 831 of the riser supporting plate 83, and a cylinder head of the vertical clamping cylinder 84 can extend to the upper surface of the cutting platform 5 in the vertical direction so as to be capable of clamping the profile resting on the upper surface of the cutting platform 5 with the cutting platform 5 in the vertical direction. In this way, the first horizontal clamping cylinder 81 and the first vertical plate 82, and the vertical clamping cylinder 84 and the cutting platform 5 can clamp the profile in both horizontal and vertical directions, so that the stability of the profile during cutting is greatly improved.

According to a further technical scheme, a material height measuring device 7 for measuring the height of the profile is further arranged on the rigid frame 3 of the movable cutting unit 2b, the material height measuring device 7 is mounted on an upper connecting plate 831 of the vertical plate supporting plate 83 and is arranged in parallel with the vertical clamping cylinder 84, the material height measuring device 7 comprises an upper pressing plate 71 for pressing the profile, and the upper pressing plate 71 is arranged above the cutting platform 5 in a vertically movable manner. In this way, the height of different profiles can be detected by the material height measuring device 7, and a user can cut out a profile with a required length only by adjusting the distance between the two cutting units and the cutting angle of the saw blade 41.

Further technical solution can also be that, as shown in fig. 1, a material shelf 9 is provided on the right side of the movable cutting unit 2b, and the material shelf 9 is connected to the rigid frame 3; a second horizontal clamping cylinder 91 for clamping the profile resting on the top end face of the rack 9 is further arranged on the rack 9, a second vertical plate 92 is arranged on the rack, the outer surface of the second vertical plate 92 is perpendicular to the upper surface of the cutting platform 5, the second vertical plate 92 is arranged at a position close to the cutting platform 5, and the cylinder head of the second horizontal clamping cylinder 91 can extend to the second vertical plate 92 in the horizontal direction so as to be matched with the second vertical plate 92 to clamp the profile resting on the top end face of the rack 9 together in the horizontal direction. In this way, the profile is clamped by the second horizontal clamping cylinder 91 and the second vertical plate 92, so that the stability of the profile during cutting is further improved; in addition, the cut section bar raw materials can be clamped on the material rack 9 and are not easy to fall off, and the use safety of the cutting machine is improved.

In the above description, the movable cutting unit 2b is taken as an example, and in the fixed cutting unit 2b, the swing direction of the swing frame 4 swings towards the left side plate 33, which requires to adjust the left and right side plates adaptively, for example, the right side plate 34 is higher than the left side plate 33, the flat plate portion 35 is correspondingly disposed on the upper portion of the right side plate 34, and the pulling cylinder 63, the supporting rod 61 and the first vertical plate 82 are correspondingly disposed on the flat plate portion 35 of the right side plate 34, so as to cover or separate the cover 62 from the upper portion of the cutting platform 5.

Claims

1. A cutting unit with an improved rigid frame structure, including a rigid frame, a swing frame body, and a cutting platform, the rigid frame includes a front vertical plate, a rear vertical plate, and a front vertical plate and a rear vertical plate. The left side plate and the right side plate, the swing frame body is installed with a saw blade that can move back and forth, the swing frame body is oscillatingly arranged in the space between the front vertical plate and the rear vertical plate, the cutting platform It is arranged on the rear vertical plate, and the swing frame body can swing relative to the cutting platform; it is characterized in that the left side plate is higher than the right side plate, and the upper part of the left side plate includes a vertical A first vertical plate is erected on the flat plate portion, the first vertical plate is located on the front side of the cutting platform, and the first vertical plate is connected to the The cutting platform combination is used to form a two-dimensional positioning reference for the profile in two directions; it also includes a support rod, a cover body and a pulling cylinder, the cover body is fixed on the top of the support rod, and the output of the pulling cylinder is The shaft end is hinged to the support rod, the bottom end of the support rod and the fixed end of the traction cylinder are arranged at intervals in front and rear and are hinged on the flat plate portion, and the support rod and the traction cylinder are located on the first vertical plate When the traction cylinder pulls the support rod to swing, the cover body can be switched at least in two working positions, the first working position is when the cover is placed above the cutting platform and the first vertical plate, The second working position is away from above the cutting platform.

2 . The cutting unit with an improved rigid frame structure according to claim 1 , wherein the upright part and the flat plate part on the upper part of the left side plate are integrally formed, and the flat plate part starts from the upright part and goes toward the The direction of the right side plate extends in a suspended manner, and a rib plate connected to the upright portion is provided at the lower portion of the flat plate portion.

3. The cutting unit with an improved rigid frame structure according to claim 1, wherein the cutting platform is detachably mounted on the rear vertical plate, and the upper surface of the cutting platform is the same as the first The rear side surfaces of the vertical plates are perpendicular to each other.

4. The cutting unit with improved rigid frame structure according to claim 1, 2 or 3, wherein the support rod comprises an upper rod body and a lower rod body, and the upper rod body and the lower rod body have an included angle, and when all the When the cover body covers the top of the cutting platform, the lower rod body is perpendicular to the upper surface of the cutting platform; when the cover body moves away from the top of the cutting platform, the upper rod body is perpendicular to the upper surface of the cutting platform. the upper surface of the cutting platform.

5. A cutting machine, characterized in that it comprises a horizontal frame on which linear slide rails are arranged, and also includes two of claims 1 to 4 with an improved rigid frame structure. The cutting units are arranged left and right and one is fixedly arranged on the left side of the horizontal frame, and the other is slidably arranged on the linear slide rail.

6. The cutting machine according to claim 5, characterized in that, a material height measuring device for measuring the height of the profile is further provided on the first vertical plate on which the cutting unit on the linear sliding rail is slidably arranged, so The material height measuring device includes an upper pressing plate for pressing against the top of the profile, and the upper pressing plate is arranged above the cutting platform so as to be able to move up and down.

7 . The cutting machine according to claim 5 , wherein a first horizontal clamping cylinder is provided on the rear vertical plate of the rigid frame, and the cylinder head of the first horizontal clamping cylinder can be horizontally moved in a horizontal direction. 8 . It extends toward the first vertical plate so as to be able to cooperate with the first vertical plate in a horizontal direction to jointly clamp the profile resting on the upper surface of the cutting platform.

8. The cutting machine according to claim 5, wherein a material rack is provided on the right side of the cutting unit slidingly arranged on the linear slide rail, and the material rack is connected to the rigid frame; The material rack is also provided with a second horizontal clamping cylinder for clamping the profiles resting on the top surface of the material rack, a second vertical plate is arranged on the material rack, and the outer surface of the second vertical plate is Perpendicular to the upper surface of the cutting platform, the second vertical plate is arranged at a position close to the cutting platform, and the cylinder head of the second horizontal clamping cylinder can extend to the second vertical plate in a horizontal direction so as to The profiles resting on the top surface of the material rack can be clamped together in the horizontal direction in cooperation with the second vertical plate.