Portable clamping cutting machine

Abstract

The utility model provides a portable clamping cutting machine, and relates to the technical field of cutting equipment, in order to solve the problem that in the prior art, a small and medium-sized cutting machine is not supported in the cutting process, so that the cutting precision is influenced, the portable clamping cutting machine comprises an opening and closing supporting support and a cutting machine assembly, and the opening and closing supporting support comprises a first platen and a second platen; the first platen is provided with a first edge and a second edge which correspond to each other in the first direction, one side of the second platen is hinged to the first edge of the first platen, and the other side of the second platen can be opened, closed and positioned relative to the second edge of the first platen. The cutting machine assembly is installed on the side, away from the first table plate, of the second table plate through a guide mechanism and can move in the second direction, and a cutting saw blade is arranged at the head end of the cutting machine assembly and extends out of the lower side of the first table plate. The portable clamping cutting machine is convenient for an operator to control, so that the cutting machine runs stably, and the cutting accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment, in particular to a portable positioning cutting machine. Background Art

[0002] With the development of the decoration industry, large-scale plates are mostly used for decoration, such as stone plates, wood plates, etc. In particular, ceramic tiles are used more frequently. The shapes of ceramic tiles are mainly square or rectangular, and generally have fixed size specifications. During the decoration process, ceramic tiles often need to be cut because of inappropriate areas. During installation, it is often necessary to chamfer the plates to increase installation strength or enhance aesthetics.

[0003] At present, the chamfering treatment of plates includes the following machine cutting methods: straight cutting and chamfering cutting by desktop cutting machines, such as the plate chamfering cutting machine disclosed in the document with patent application number 202221495840.6. This cutting machine has a huge shape and the weight of the related profiles will cause natural sinking deformation in the middle, affecting the cutting accuracy and unchanged handling. Although medium-sized equipment is portable, the disassembly and assembly process is quite cumbersome, and the adjustment during assembly directly affects the cutting accuracy, such as a plate chamfering cutting machine disclosed in patent application number 202320737288.5. Many small cutting machines are modified from low-power marble machines. The marble machine is fixed in the middle of the marble machine support plate. The extended parts on both sides of the saw blade are very short, and the size of the plate is very small. Two-thirds of the weight of the whole machine is suspended outside the plate without support. Relying entirely on the operator's feel to grasp its balance point can easily cause inaccurate cutting at both ends of the plate, affecting the accuracy of cutting. Utility Model Content

[0004] The purpose of the utility model is to provide a portable positioning cutting machine to solve the problem that the small and medium-sized cutting machines in the prior art have no support during the cutting process, which affects the cutting accuracy. The portable positioning cutting machine of the utility model is easy for the operator to control, so that the cutting machine runs smoothly and the cutting accuracy is improved.

[0005] The utility model provides a portable positioning cutting machine, comprising:

[0006] An opening and closing support bracket, the opening and closing support bracket comprises a first platform and a second platform, the first platform has a first side and a second side corresponding to each other in a first direction, one side of the second platform is hinged to the first side of the first platform, and the other side of the second platform can be opened and positioned relative to the second side of the first platform;

[0007] A cutting machine assembly, wherein the cutting machine assembly is installed on the side of the second platen away from the first platen through a guide mechanism and can move along a second direction, wherein the head end of the cutting machine assembly has a cutting saw blade, and the cutting saw blade extends out of the lower side of the first platen. When the first platen is placed on a plate, the cutting saw blade cuts the plate along the second direction as the cutting machine assembly moves on the second platen.

[0008] As a preferred solution of the utility model, first side frames are respectively provided on both side edges of the first platform along the first direction, second side frames are respectively provided on both side edges of the second platform along the first direction, and two support adjustment plates are provided on one side of the first side close to the first platform, the bottom ends of the two support adjustment plates are respectively connected to the two first side frames and the top ends thereof are extended upward, and the second side frames can be adjustably installed at different heights of the support adjustment plates.

[0009] As a preferred solution of the utility model, the support adjustment plate is an arc-shaped plate, and the arc mouth of the support adjustment plate is arranged toward the hinged edge of the first table plate and the second table plate. When the second table plate is opened to a certain angle relative to the first table plate, it is connected to the support adjustment plate through the second side frame for positioning the angle. The angle range between the first table plate and the second table plate adjusted by the support adjustment plate is 0-45°.

[0010] As a preferred solution of the utility model, it also includes a first backrest, which is arranged on one side of the first edge close to the first platform and extends along the second direction, and both ends of the first backrest are connected to the second side frame through adjustment brackets.

[0011] As a preferred solution of the utility model, a first bracket hole and a second bracket hole are provided on the adjustment bracket, the second bracket hole is provided on the side of the first bracket hole close to the plate, the second bracket hole is a strip hole, and the adjustment bracket is adjustably connected to the first backrest through the first bracket hole and the second bracket hole, so that the abutment surface of the first backrest can be perpendicular to the first platform when the first side frame and the second side frame are opened to different angles.

[0012] As a preferred solution of the utility model, a first adjustment hole and a second adjustment hole are provided on one end of the second side frame near the hinged edge, the first adjustment hole and the second adjustment hole are on the same straight line and are arranged parallel to the second platform, the second side frame is adjustably connected to the adjustment bracket through the first adjustment hole and the second adjustment hole, and the first backrest is driven to be displaced by the adjustment bracket to adjust the chamfer thickness.

[0013] As a preferred solution of the utility model, it also includes a locking backrest assembly arranged along the second direction and two telescopic interlocking scales arranged along the first direction, one end of the two telescopic interlocking scales are respectively connected to one end of the two first side frames away from the hinged edge, and the other end of the two telescopic interlocking scales are respectively connected to the two ends of the locking backrest assembly.

[0014] As a preferred solution of the utility model, the telescopic interlocking scale comprises a plurality of scale units, each of which is provided with sliding holes arranged along its length direction, and two adjacent scale units are connected by a connecting piece passing through the sliding holes.

[0015] As a preferred solution of the utility model, the locking backrest assembly includes a second backrest and a pulley assembly, the second backrest is provided with a notch groove on a side close to the opening and closing support bracket, the notch groove is extended along the length direction of the second backrest, the pulley assembly includes a first wheel group and a second wheel group, the first wheel group and the second wheel group are respectively arranged in the second direction and installed in the two side surfaces of the notch groove and protrude from the corresponding side surfaces, when the second backrest is locked on the end surface of the plate, the first wheel group and the second wheel group are respectively slidably arranged on the side surface and the upper side edge of the plate.

[0016] As a preferred solution of the present invention, the positioning backrest assembly further includes a second slider, which is installed on a side of the second backrest away from the notch groove and is arranged along a second direction.

[0017] Compared with the prior art, the utility model has the following positive effects:

[0018] The portable card cutting machine provided by the utility model comprises: an opening and closing support bracket, the opening and closing support bracket comprises a first table and a second table, the first table has a corresponding first side and a second side in a first direction, one side of the second table is hinged to the first side of the first table, and the other side of the second table can be opened and positioned relative to the second side of the first table; a cutting machine assembly, the cutting machine assembly is installed on the side of the second table away from the first table through a guide mechanism and can move along the second direction, the head end of the cutting machine assembly has a cutting saw blade, the cutting saw blade extends from the lower side of the first table, when the first table is placed on the plate, the cutting saw blade moves along the second table with the cutting machine assembly on the second table to cut the plate in the second direction. When the portable card cutting machine of the utility model cuts the plate, the opening and closing support bracket is placed on the plate to be cut, the first table is placed parallel to the plate, and the cutting machine assembly can be slidably connected to the second table. According to the requirement of cutting angle, the second platen is opened at a certain angle relative to the first platen, and after the opening and closing support bracket is positioned on the plate, the cutting machine assembly slides on the second platen in the second direction, and the cutting saw blade cuts the plate in the second direction. The portable positioning cutting machine in the utility model supports the cutting machine assembly in the process of cutting the plate through the opening and closing support bracket, reduces the operator's control force on the cutting machine assembly, avoids affecting the cutting accuracy due to hand feel errors, and through the guiding effect of the guide mechanism, the operator only needs to push the cutting machine assembly to slide on the second platen along the guide direction, which is convenient for the operator to control and makes the cutting machine run smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the connection between the opening and closing support bracket and the cutting machine assembly in the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the opening and closing support bracket in the utility model;

[0022] Figure 3 This is a structural schematic diagram of the portable positioning cutting machine of the utility model from a first perspective;

[0023] Figure 4 It is a structural schematic diagram of the portable positioning cutting machine of the utility model from a second viewing angle;

[0024] Figure 5It is a top view of the portable positioning cutting machine of the utility model;

[0025] Figure 6 for Figure 5 Sectional view of AA in the middle;

[0026] Figure 7 for Figure 6 A partial enlarged view of B in the middle;

[0027] Figure 8 It is a structural schematic diagram of the clamping backrest component in the utility model;

[0028] Fig. 9 It is a structural schematic diagram when the second sliding block slides on the plate;

[0029] Fig.10 This is a structural diagram of “top inside and no top outside”.

[0030] In the figure: 1, opening and closing support bracket; 11, first table; 111, first side frame; 112, first side; 113, second side; 12, second table; 121, second side frame; 122, first adjustment hole; 123, second adjustment hole; 13, support adjustment plate; 131, support adjustment plate; 14, first slide block; 2, cutting machine assembly; 21, cutting saw blade; 3, guide mechanism; 31, guide rail; 32, clamping wheel group; 4, first backing; 41, first fixed Fixed hole; 42, second fixed hole; 5, adjustment bracket; 51, first bracket hole; 52, second bracket hole; 6, telescopic interlocking scale; 61, scale unit; 611, sliding hole; 7, positioning backrest assembly; 71, second backrest; 72, pulley assembly; 721, first wheel group; 722, second wheel group; 73, second slider; 711, notch groove; 712, first connecting hole; 713, second connecting hole; 714, third connecting hole; 8, plate. DETAILED DESCRIPTION

[0031] In the description of the present utility model, it should be noted that, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "front end", "back end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplification, and does 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0033] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0034] Combination Figure 1-Figure 9 In the following embodiments, a first direction x and a second direction y intersecting each other are introduced, wherein the first direction x is parallel to the length direction of the telescopic interlocking scale 6, and the second direction y is parallel to the moving direction of the cutting machine assembly 2.

[0035] This embodiment provides a portable cutting machine, such as Figure 1-Figure 9 As shown, it includes: an opening and closing support bracket 1 and a cutting machine assembly 2. The opening and closing support bracket 1 is used to support and guide the cutting machine assembly 2. The cutting machine assembly 2 is used to cut plates.

[0036] The opening and closing support bracket 1 includes a first platen 11 and a second platen 12, and the first platen 11 has a corresponding first side 112 and a second side 113 in a first direction X. One side of the second platen 12 is hinged to the first side 112 of the first platen 11, and the second platen 12 and the first platen 11 can be connected by a hinge. The other side of the second platen 12 can be opened and positioned relative to the second side 113 of the first platen 11, so that the first platen 11 and the second platen 12 can be set at a certain angle. The angle between the second platen 12 and the first platen 11 can be positioned by embedding a support block between the second platen 12 and the first platen 11 to perform angle positioning.

[0037] The cutting machine assembly 2 is installed on the second platen 12 at a side away from the first platen 11 through the guide mechanism 3 and can move along the second direction Y. The guide mechanism 3 guides the movement of the cutting machine assembly 2 on the second platen 12 .

[0038] Specifically, Figure 2As shown, the guide mechanism 3 includes a guide rail 31 and a clamping wheel group 32. The guide rail 31 is arranged on the second platen 12 along the second direction Y. A plurality of clamping wheel groups 32 are installed on the cutting machine assembly 2. The clamping wheel groups 32 are installed on the guide rail 31 in cooperation, thereby driving the cutting machine assembly 2 to move along the second direction Y on the second platen 12. There are two guide rails 31, and the two guide rails 31 are arranged in parallel along the second direction Y. At least one set of clamping wheel groups 32 is arranged on each guide rail. The cutting machine assembly 2 is displaced and slid relative to the second platen 12 through the guide mechanism 3, ensuring that two-thirds of the overall weight of the cutting machine assembly 2 rests on the plate, which is convenient for the operator to control and allows the cutting machine to run smoothly.

[0039] The head end of the cutting machine assembly 2 has a cutting saw blade 21, which extends from the lower side of the first table 11, and extends toward the first side 112 of the first table 11. When the first table 11 is placed on the plate 8, the cutting saw blade 21 moves on the second table 12 with the cutting machine assembly 2 to cut the plate 8 along the second direction Y. When the cutting machine assembly 2 is installed on the second table 12, the cutting saw blade 21 is vertically arranged with the second table 12. By adjusting the angle between the first table 11 and the second table 12, the angle between the cutting saw blade 21 and the plate 8 can be obtained, thereby changing the cutting angle of the plate and achieving cutting of the plate at different angles.

[0040] When the portable positioning cutting machine of this embodiment cuts a plate, the opening and closing support bracket 1 is placed on the plate to be cut, the first platen 11 is placed parallel to the platen, and the cutting machine assembly 2 is slidably connected to the second platen 12. According to the requirements of the cutting angle, the second platen 12 is opened at a certain angle relative to the first platen 11, and after the opening and closing support bracket 1 is positioned on the platen, the cutting machine assembly 2 is slid on the second platen 12 along the second direction Y, and the cutting saw blade cuts the plate in the second direction Y.

[0041] The portable positioning cutting machine in this embodiment supports the cutting machine assembly 2 during the process of cutting the plate by opening and closing the supporting bracket 1, thereby reducing the operator's control force on the cutting machine assembly 2 and avoiding the cutting accuracy being affected by hand feel errors. Through the guiding effect of the guiding mechanism 3, the operator only needs to push the cutting machine assembly 2 to slide on the second platen 12 along the guiding direction. The cutting process is smooth and reliable, and straight line cutting and chamfering cutting of the plate can be achieved.

[0042] The portable positioning cutting machine in this embodiment has a simple structure and weighs about 30 pounds after being stored. It is light and portable and can be carried upstairs by hand. It is easy to move and meets market demand.

[0043] In some embodiments, first side frames 111 are respectively provided on both sides of the first platform 11 arranged along the first direction X, and the first side frames 111 play a supporting and connecting role for the first platform 11. Second side frames 121 are respectively provided on both sides of the second platform 12 arranged along the first direction X, and the second side frames 121 play a supporting and connecting role for the second platform 12.

[0044] Two support adjustment plates 13 are arranged on one side of the first side 112 close to the first platform 11. The bottom ends of the two support adjustment plates 13 are respectively connected to the two first side frames 111 and the top ends thereof are extended upward. The support adjustment plates 13 and the first side frames 111 may be an integrated structure. The second side frame 121 may be adjustably installed at different heights of the support adjustment plates 13. The second side frame 121 may be connected to the support adjustment plates 13 by bolts.

[0045] In some embodiments, the support adjustment plate 13 is an arc-shaped plate, which has good support strength. The arc opening of the support adjustment plate 13 is arranged toward the hinged edge of the first platform 11 and the second platform 12. When the second platform 12 is opened to a certain angle relative to the first platform 11, it is connected to the support adjustment plate 13 through the second side frame 121 to position the angle. A triangular support structure is formed between the support adjustment plate 13, the first side frame 111 and the second side frame 121, which has good support stability.

[0046] The angle between the first platen 11 and the second platen 12 can be adjusted in the range of 0-45° by the support adjustment plate 13, so that the cutting saw blade 21 can cut the plate at an angle of 0-45°. This angle range enables the opening and closing support bracket 1 to provide good support for the cutting machine assembly 2 and can meet the general plate cutting angle requirements.

[0047] Specifically, the support adjustment plate 13 is provided with an arc hole 131 arranged along the length direction of the support adjustment plate 13, and the second side frame 121 is connected to the support adjustment plate 13 by bolts passing through the arc hole 131. By loosening and tightening the bolts and swinging the second table 12, the desired cutting angle between the cutting saw blade 21 and the plate 8 can be obtained.

[0048] According to the experience gained from the decoration site, the scientific chamfer angle can well protect the strength of the board after chamfering. When the board is used to decorate the wall and floor, a gap of 2 mm should be left between them. There is a saying in the tile industry that "the inside is topped but the outside is not topped". Fig.10 As shown. "Inner top" means that the 45° inner corners of the plates collide with each other, and "outer no top" means that the 45° outer corners of the plates are separated. The purpose is to prevent the chamfers from being damaged by collision. In summary, through scientific theoretical calculations, the inner top cutting angle of the 90° corner gap between the two plates is 2 mm, which is 44.2308 degrees. Therefore, Figure 2As shown, in this arrangement, scales are marked on the intersection of the arc end of the support adjustment plate 13 and the second side frame 121, and the operator only needs to align the two scales to easily achieve the above-mentioned decoration function effect.

[0049] It should be noted that a plurality of through holes arranged along the arc direction of the support adjustment plate 13 may also be provided, and bolts passing through the through holes may be used to realize an adjustable connection between the second side frame 121 and the support adjustment plate 13 .

[0050] In some embodiments, the portable positioning cutting machine in this embodiment further includes a first backrest 4, which is arranged on the side of the first edge 112 close to the first platen 11 and extends along the second direction Y. The two ends of the first backrest 4 are respectively connected to the second side frame 121 through the adjustment bracket 5, so that when the first platen 11 is placed on the plate, the side of the plate abuts against the first backrest 4, which plays a relative limiting role between the plate and the opening and closing support bracket 1, so that the cutting machine assembly can avoid displacement of the plate during the cutting process, and further improve the cutting accuracy. Preferably, the abutting surface of the first backrest 4 and the plate is perpendicular to the first platen 11 to limit the plate with a right angle edge.

[0051] In some embodiments, Figure 2 As shown, a first bracket hole 51 and a second bracket hole 52 are provided on the adjustment bracket 5. The second bracket hole 52 is provided on the side of the first bracket hole 51 close to the plate, and the second bracket hole 52 is a strip hole. The adjustment bracket 5 is adjustably connected to the first backrest 4 through the first bracket hole 51 and the second bracket hole 52, and the relative connection angle between the adjustment bracket 5 and the first backrest 4 can be adjusted. When the first side frame 111 and the second side frame 121 are opened at different angles, the abutting surface of the first backrest 4 can be perpendicular to the first platform 11.

[0052] Specifically, Figure 2 As shown, two first bracket holes 51 are provided, and the connecting line of the two first bracket holes 51 is arranged parallel to the second bracket hole 52. Figure 6As shown, the end surface of the first backrest 4 is provided with a first fixing hole 41 and a second fixing hole 42. When the first side frame 111 and the second side frame 121 are arranged at 45°, the lower side of the second bracket hole 52 is connected to the first fixing hole 41 on the first backrest 4 by a swivel screw, and the lower first bracket hole 51 is connected to the second fixing hole 42 on the first backrest 4 by a swivel screw. When the first side frame 111 and the second side frame 121 are arranged at 0°, the upper side of the second bracket hole 52 is connected to the first fixing hole 41 on the first backrest 4 by a swivel screw, and the upper first bracket hole 51 is connected to the second fixing hole 42 on the first backrest 4 by a swivel screw. Therefore, when the first side frame 111 and the second side frame 121 are arranged at 0° or 45°, by adjusting the connection angle between the first backrest 4 and the adjustment bracket 5, the abutting surface of the first backrest 4 can be perpendicular to the first platform 11, so that when the first platform 11 is placed on the plate, the side of the plate abuts against the first backrest 4.

[0053] The two-side adjustment brackets 5 in this embodiment are installed on the two sides of the first backrest 4 through swivel screws, and the positioning conversion of the backrest chamfering and straight cutting functions is achieved by changing the positions of the swivel screws.

[0054] In some embodiments, Figure 2 As shown, a first adjustment hole 122 and a second adjustment hole 123 are provided on one end of the second side frame 121 near the hinged edge, and both the first adjustment hole 122 and the second adjustment hole 123 are bar-shaped holes, and the first adjustment hole 122 and the second adjustment hole 123 are arranged on the same straight line and parallel to the second platen 12. The second side frame 121 is adjustably connected to the adjustment bracket 5 through the first adjustment hole 122 and the second adjustment hole 123, and the adjustment bracket 5 drives the first backer 4 to move to adjust the chamfer thickness.

[0055] Specifically, the first adjustment hole 122 and the second adjustment hole 123 are both connected to the adjustment bracket 5 through chamfer adjustment screws.

[0056] It should be noted that an adjustment hole connected to the second side frame 121 may also be provided on the adjustment bracket 5 to achieve the displacement of the first backrest 4 .

[0057] The two side adjustment brackets 5 in this embodiment are installed on the second side frame 121 through the chamfer adjustment screws. And by adjusting the tightness of the chamfer adjustment screws, the scales on the adjustment bracket 5 and the second side frame 121 are matched to achieve the displacement of the first backrest 4 to achieve the corresponding chamfer thickness.

[0058] It is worth mentioning that the chamfer thickness of the plate refers to the size of the vertical distance between the side of the plate and the plate surface left by cutting at a 45-degree angle. The conventional plate thickness is 10 mm. According to the requirements of the decoration process, the chamfer thickness is generally divided into 0 to 5 mm. The thickness of the chamfer in actual chamfering applications is determined by the experience of the constructor, and the effects vary. Theoretically: parallel displacement is 1 mm, and parallel displacement in the 45° direction is 0.707107 mm. In this embodiment, standard calculation scales are engraved at the corresponding positions of the adjustment bracket 5 and the second side frame 121, with a spacing of 0.707107 mm. That is, for every scale that the adjustment bracket 5 moves relative to the second side frame 121, the adjustment bracket 5 drives the first backrest 4 to move horizontally by 1 mm.

[0059] In some embodiments, the portable positioning cutting machine in this embodiment also includes a positioning backrest assembly 7 arranged along the second direction and two telescopic interlocking scales 6 arranged along the first direction, one end of the two telescopic interlocking scales 6 is respectively connected to the end of the two first side frames 111 away from the hinged edge, and the other ends of the two telescopic interlocking scales 6 are respectively connected to the two ends of the positioning backrest assembly 7.

[0060] In some embodiments, Figure 6 As shown, the telescopic interlocking scale 6 includes a plurality of scale units 61 , each of which is provided with a sliding hole 611 arranged along its length direction, and two adjacent scale units 61 are connected via a connecting piece passing through the sliding hole 611 .

[0061] The scale units 61 are all set as 200 mm long standard scale units, with nut structures at both ends and hollow sliding holes 611 in the body. The nut passes through the sliding hole 611 through one scale and is locked into another scale unit. The nut slides in the sliding hole 611, and a mutually interlocking and sliding mechanism is formed between two adjacent scale units 61. By loosening and tightening the nut and adjusting the scale displacement on the scale unit 61, the total size can be determined.

[0062] like Figure 6 As shown, the telescopic interlocking scale 6 includes three scale units 61. In practical applications, the telescopic interlocking scale 6 can be disassembled or the number of scale units 61 can be increased to suit the cutting application of plates of different sizes.

[0063] In some embodiments, Figure 7-Figure 9As shown, the locking backrest assembly 7 includes a second backrest 71 and a pulley assembly 72. The second backrest 71 is provided with a notch groove 711 on a side close to the opening and closing support bracket 1. The notch groove 711 is extended along the length direction of the second backrest 71. The notch groove 711 is used to correspond to the corner of the plate. The pulley assembly 72 clamps the edge of the plate. Through the clamping action of the first backrest 4 and the second backrest 71 on the two opposite end faces of the plate, the relative displacement between the plate and the opening and closing support bracket 1 is avoided, so that the cutting machine only cuts the plate by moving the cutting machine assembly 2 along the guide rail during the cutting process of the plate, which has good stability and improves the cutting accuracy.

[0064] The pulley assembly 72 includes a first wheel group 721 and a second wheel group 722. The first wheel group 721 and the second wheel group 722 are respectively arranged in the second direction Y and installed in the two side surfaces of the notch groove 711 and protrude from the corresponding side surfaces. When the second backrest 71 is clamped on the end surface of the plate, the first wheel group 721 and the second wheel group 722 are respectively slidably arranged on the side surface and the upper side edge of the plate. The two side surfaces of the notch groove 711 are arranged perpendicularly.

[0065] When the cutting machine assembly 2 on the opening and closing support bracket 1 completes a cutting, the position of the locking backing assembly 7 and the opening and closing support bracket 1 on the plate can be moved as a whole to carry out the next cutting. The pulley assembly 72 makes it easier for the locking backing assembly 7 to move along the plate. A first slider 14 is provided on the bottom side of the first platen 11 to facilitate the movement of the opening and closing support bracket 1 on the plate. The locking backing assembly 7 controls the parallel displacement of the cutting machine assembly 2 according to the edge of the plate through the connection between the telescopic interlocking scales on both sides of the locking backing assembly 7 and the opening and closing support bracket 1.

[0066] In some embodiments, the locking backrest assembly 7 further includes a second slider 73, which is mounted on a side of the second backrest 71 away from the notch 711 and arranged along the second direction. Fig. 9 As shown, the second slider 73 on one side of the locking backrest assembly 7 can slide on the plate surface to adapt to the curve cutting of the cutting machine and stabilize the balance of the cutting machine.

[0067] Specifically, the first connection hole 712, the second connection hole 713 and the third connection hole 714 are respectively provided on the end faces at both ends of the second backrest 71, and the connecting line between the first connection hole 712 and the second connection hole 713 is perpendicular to the connecting line between the second connection hole 713 and the third connection hole 714. When the notch groove 711 is engaged with the plate, the telescopic interlocking scale 6 is connected with the second connection hole 713 and the third connection hole 714. When the second slider 73 slides on the plate surface, the telescopic interlocking scale 6 is connected with the first connection hole 712 and the second connection hole 713.

[0068] The portable positioning cutting machine in this embodiment is placed on the plate to be cut, and the size to be cut is adjusted by using the telescopic interlocking scale 6 on the device, which can also be reduced to a minimum for easy storage and carrying; the positioning backrest component is used to press against the original standard side of the plate to realize the overall positioning and linear movement of the cutting machine; the opening and closing of the opening and closing support bracket is used to realize the adjustment of the cutting angle of the cutting machine blade by 0-45°; the chamfering cutting thickness of the plate is adjusted by using the matching scale of the adjustment bracket and the second side frame.

[0069] The portable positioning cutting machine in this embodiment adjusts the equipment according to the on-site cutting process application requirements through scale marks on the corresponding positions of the machine body. The operator only needs to simply loosen and tighten the bolts to position the equipment to obtain corresponding straight cutting and chamfering precision cutting of the plate.

[0070] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make several modifications and improvements without departing from the creative concept of the present invention, which should be included in the protection scope of the present invention.

Claims

1. A portable cutting machine, characterized in that: include: An opening and closing support bracket (1), the opening and closing support bracket (1) comprising a first platform (11) and a second platform (12), the first platform (11) having a corresponding first edge (112) and a second edge (113) in a first direction, one side of the second platform (12) being hinged to the first edge (112) of the first platform (11), and the other side of the second platform (12) being able to be opened and positioned relative to the second edge (113) of the first platform (11); A cutting machine assembly (2), the cutting machine assembly (2) being mounted on the second table (12) on a side away from the first table (11) through a guide mechanism (3) and being capable of moving in a second direction, the head end of the cutting machine assembly having a cutting saw blade (21), the cutting saw blade (21) extending out from the lower side of the first table (11), and when the first table (11) is placed on a plate, the cutting saw blade cuts the plate in the second direction as the cutting machine assembly moves on the second table (12).

2. A portable positioning cutting machine according to claim 1, characterized in that: First side frames (111) are respectively arranged on both side edges of the first platform (11) arranged along the first direction, and second side frames (121) are respectively arranged on both side edges of the second platform (12) arranged along the first direction. Two support adjustment plates (13) are arranged on one side of the first side (112) close to the first platform (11), and the bottom ends of the two support adjustment plates (13) are respectively connected to the two first side frames (111) and the top ends thereof are extended upwards, and the second side frames (121) can be adjusted and installed at different heights of the support adjustment plates (13).

3. A portable positioning cutting machine according to claim 2, characterized in that: The support adjustment plate (13) is an arc-shaped plate, and the arc opening of the support adjustment plate (13) is arranged toward the hinged edge of the first table plate (11) and the second table plate (12). When the second table plate (12) is opened to a certain angle relative to the first table plate (11), it is connected to the support adjustment plate (13) through the second side frame (121) to position the angle. The angle between the first table plate (11) and the second table plate (12) adjusted by the support adjustment plate (13) ranges from 0 to 45°.

4. A portable cutting machine according to claim 2, characterized in that: It also includes a first backrest (4), which is arranged on a side of the first edge (112) close to the first platform (11) and extends along the second direction, and the two ends of the first backrest (4) are respectively connected to the second side frame (121) through an adjustment bracket (5).

5. A portable positioning cutting machine according to claim 4, characterized in that: The adjustment bracket (5) is provided with a first bracket hole (51) and a second bracket hole (52); the second bracket hole (52) is provided on a side of the first bracket hole (51) close to the plate; the second bracket hole (52) is a strip-shaped hole; the adjustment bracket (5) is adjustably connected to the first backrest (4) through the first bracket hole (51) and the second bracket hole (52), so that when the first side frame (111) and the second side frame (121) are opened at different angles, the abutting surface of the first backrest (4) can be perpendicular to the first platform (11).

6. A portable cutting machine according to claim 4, characterized in that: A first adjustment hole (122) and a second adjustment hole (123) are provided at one end of the second side frame near the hinged edge; the first adjustment hole (122) and the second adjustment hole (123) are arranged on the same straight line and are arranged parallel to the second platform (12); the second side frame is adjustably connected to the adjustment bracket (5) via the first adjustment hole (122) and the second adjustment hole (123); and the first backrest (4) is driven to move via the adjustment bracket (5) to adjust the chamfer thickness.

7. A portable cutting machine according to claim 2, characterized in that: It also comprises a locking backrest assembly (7) arranged along the second direction and two telescopic interlocking scales (6) arranged along the first direction, one end of the two telescopic interlocking scales (6) being respectively connected to one end of the two first side frames (111) away from the hinged edge, and the other ends of the two telescopic interlocking scales (6) being respectively connected to the two ends of the locking backrest assembly (7).

8. The portable cutting machine according to claim 7, characterized in that: The telescopic interlocking scale (6) comprises a plurality of scale units (61), each of which is provided with a sliding hole (611) arranged along its length direction, and two adjacent scale units (61) are connected via a connecting piece passing through the sliding hole (611).

9. The portable cutting machine according to claim 7, characterized in that: The locking backrest assembly (7) comprises a second backrest (71) and a pulley assembly (72); the second backrest (71) is provided with a notch groove (711) on a side close to the opening and closing support bracket (1); the notch groove (711) is extended along the length direction of the second backrest (71); the pulley assembly (72) comprises a first wheel group (721) and a second wheel group (722); the first wheel group (721) and the second wheel group (722) are respectively arranged in a second direction and installed in two side surfaces of the notch groove (711) and protrude from the corresponding side surfaces; when the second backrest (71) is locked on the end surface of the plate, the first wheel group (721) and the second wheel group (722) are respectively slidably arranged on the side surface and the upper side edge of the plate.

10. The portable cutting machine according to claim 9, characterized in that: The locking backrest assembly (7) further comprises a second sliding block (73), wherein the second sliding block (73) is mounted on a side of the second backrest (71) away from the notch groove (711) and is arranged along a second direction.

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