Bending machine with supporting device

Abstract

The invention provides a bending machine with a supporting device, and relates to the field of bending machines. The bending machine with the supporting device comprises a bending workbench and further comprises a bending mechanism, an auxiliary mechanism, a pressing mechanism and an adjusting mechanism, the bending mechanism, the pressing mechanism, the adjusting mechanism and the auxiliary mechanism are all installed on the bending workbench, and the auxiliary mechanism comprises a metal plate conveying table. The metal plate conveying table penetrates through the bending workbench and is connected with the bending workbench in an up-down sliding mode, the interior of the metal plate conveying table is of a hollow structure, and an oil box is fixedly installed on the top wall in the metal plate conveying table. According to the bending machine with the supporting device, by arranging the bending mechanism and the auxiliary mechanism, it can be guaranteed that the rear end of a long workpiece is supported when the workpiece is machined, by arranging the bending mechanism, the pressing mechanism and the auxiliary mechanism, during stamping, a steel plate can be lubricated and cooled through cooling oil, the effect of integrated machining can be achieved, and by arranging the conveying mechanism, the machining efficiency is improved. And the whole steel plate can be supported, so that the steel plate can be forwards transferred after being sprayed with lubricating oil.

Description

Technical Field

[0001] The invention relates to the field of bending machines, in particular to a bending machine with a supporting device. Background Art

[0002] As is known to all, a thin plate bending machine is a device for bending thin plates, which has been widely used in the field of mechanical equipment; the existing thin plate bending machine includes a bottom plate, a lower knife, an upper knife, an upper knife clamp and an upper knife cylinder, a vertical plate is arranged at the top of the bottom plate, the bottom end of the vertical plate is connected to the top of the bottom plate, the bottom end of the lower knife is in contact with the top of the bottom plate, a through hole is arranged on the upper part of the upper knife, through holes are arranged on both sides of the upper knife clamp, the upper knife and the upper knife clamp are connected by bolts, and an upper knife cylinder is arranged at the top of the upper knife clamp; when the existing thin plate bending machine is used, the staff first places the thin plate on the top of the lower knife, the left end of the thin plate contacts the right end of the vertical plate, so that the thin plate is perpendicular to the vertical plate, and then the upper knife cylinder is started, the upper knife moves downward, and the bottom end of the upper knife presses the top of the thin plate to deform it, and the upper knife is reset after being folded to the required angle, and the thin plate can be removed.

[0003] The existing patent application (202321025764.7 A bending machine with a support device) includes: a bending machine body, a support device, characterized in that the support device includes: a support plate, a support frame, and a support leg, the support plate is divided into an inner support plate and an outer support plate, the inner support plate is rotatably connected to the bending machine body, the inner support plate and the outer support plate are in the same horizontal plane, the contact position of the inner support plate and the outer support plate has a plurality of square notches, the outer support plate has a protrusion that can be inserted into the square notch of the inner support plate, the outer support plate can slide in a direction away from the inner support plate, the bending machine body has a groove corresponding to the size of the support device, and the support device can be placed in the groove when it is folded, one end of the support frame is rotatably installed on the bending machine body, and the other end of the support frame is rotatably installed on the inner support plate, and the support frame is retractable.

[0004] In the above scheme, the auxiliary equipment cannot be flush with the bending machine itself. After bending, the rear end of the longer plate workpiece is easy to warp, resulting in poor bending accuracy.

[0005] Moreover, oiling equipment is required during bending to reduce friction and temperature. For sheet metal transportation, early oil spraying will result in better transportation effects. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a bending machine with a supporting device, which solves the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a bending machine with a supporting device, including a bending workbench, and also including a bending mechanism, an auxiliary mechanism, a pressing mechanism and an adjusting mechanism, and the bending mechanism, the pressing mechanism, the adjusting mechanism and the auxiliary mechanism are all installed on the bending workbench.

[0008] The auxiliary mechanism includes a metal plate conveying platform, which passes through the bending workbench and is slidably connected thereto up and down. The interior of the metal plate conveying platform is a hollow structure. An oil box is fixedly installed on the internal top wall of the metal plate conveying platform. A plurality of oil holes connected to the oil box are provided on the upper surface of the metal plate conveying platform. An oil inlet pipe connected to the oil box is installed on one side of the metal plate conveying platform. An oil push plate and two hydraulic cylinders A are fixed in the oil box. The output end of the hydraulic cylinder A is fixed to the bottom surface of the oil push plate. The oil push plate moves up and down in the oil box under the action of the hydraulic cylinder A, and is used to deliver the cooling oil in the oil box to the surface of the metal plate conveying platform through the oil holes.

[0009] There are two adjusting mechanisms, which are respectively located on the left and right sides of the metal plate conveying platform. The adjusting mechanisms include a hydraulic cylinder B, which is laterally fixed on the bending workbench. A wedge block A is fixedly installed on the output end of the hydraulic cylinder B, and a wedge block B is fixedly installed on the side of the metal plate conveying platform. When the wedge block A pushes the wedge block B, the metal plate conveying platform can rise relative to the bending workbench.

[0010] Preferably, the bending mechanism comprises a bending base, a bending lower die and a bending upper die. The bending base is fixed to the upper surface of the bending workbench and is located on one side of the metal plate conveying platform. A plurality of through holes are provided on the bending base. A limit rod is fixedly installed at the bottom of the bending lower die. The limit rod is inserted into the through hole. Two groups of guide pillars are fixed on one side of the bending base. The bending upper die is fixed to the upper end of the guide pillar. The guide pillar is a two-stage type and can be compressed.

[0011] It also includes two hydraulic cylinders C, the hydraulic cylinders C are fixed to the pressing mechanism, and the output ends of the hydraulic cylinders C are fixed to the upper surface of the bending upper die.

[0012] Preferably, the auxiliary mechanism further includes a transmission mechanism and an initial pressure mechanism, the transmission mechanism includes a hydraulic cylinder D and a conveying wheel, the hydraulic cylinder D is fixed to the inner wall of the metal plate conveying platform, a wheel frame is fixed to the output end thereof, the conveying wheel is mounted on the wheel frame, the left and right sides of the upper end of the metal plate conveying platform are both slope structures, a through groove is provided at the slope structure, and the wheel frame and the conveying wheel can pass through the through groove when the hydraulic cylinder D is extended;

[0013] The utility model also comprises a guide rod which is fixed on the inner wall of the metal plate conveying platform, and one end of the wheel frame is sleeved on the guide rod and is slidably connected with the guide rod.

[0014] Preferably, the initial pressure mechanism comprises a rocker arm, a connecting rod and a guide wheel, wherein two rockers are provided and are respectively located at the front and rear sides of the metal plate conveying platform, one end of the rocker arm is rotatably connected to the side of the metal plate conveying platform, the connecting rod is located between the ends of the two rockers away from the metal plate conveying platform, a plurality of guide wheels are provided and are evenly distributed, and the connecting rod passes through the plurality of guide wheels and is fixed thereto;

[0015] It also includes a spring, wherein two springs are provided, one end of the spring is connected to an end of the rocker arm away from the metal plate conveying platform, and the other end of the spring is connected to the metal plate conveying platform.

[0016] Preferably, the pressing mechanism includes a gantry and a hydraulic cylinder E, two gantry and two hydraulic cylinders E are provided, the two gantry are respectively located at the front and rear sides of the metal plate conveying platform, and the bottom ends of the gantry are fixed to the upper surface of the bending workbench, and the hydraulic cylinder E is fixed to the gantry;

[0017] It also includes a pressing frame, the output ends of the two hydraulic cylinders E are fixed to the pressing frame, the pressing frame includes two longitudinal frames and two transverse frames, and the longitudinal frames and the transverse frames are fixed to form a rectangle.

[0018] Preferably, there is a gap between the edge of the oil pushing plate and the inner wall of the oil box for oil passing.

[0019] Preferably, two force-bearing mounting frames are fixedly mounted on the bottom surface of the metal plate conveying platform, and positioning holes are provided on the force-bearing mounting frames.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The bending machine with a supporting device is provided with a bending mechanism and an auxiliary mechanism. When bending, the bending lower die can be replaced. When the bending lower die is taken out, the bending lower die can be moved out of the bending base. Therefore, when bending the steel plate in the later stage, the height of the metal plate conveying table can be adjusted at any time according to the extension position of the hydraulic cylinder B, so as to ensure that the metal plate conveying table is at the same height as the bending lower die. Since the hydraulic cylinder B adopts a combination of wedge blocks A and wedge blocks B to change the height of the metal plate conveying table, the metal plate conveying table can withstand greater pressure without changing its position, which can ensure that the rear end of a longer workpiece is supported during processing.

[0022] 2. The bending machine with a supporting device is provided with a bending mechanism, a pressing mechanism and an auxiliary mechanism. When the steel plate is bent, it will enter between the bending lower die and the bending upper die. Before stamping, the hydraulic cylinder E extends to make the press frame press the steel plate. Then, when the bending upper die approaches the bending lower die, the steel plate is bent. Before the steel plate is bent, when it passes through the upper surface of the metal plate conveying table, the hydraulic cylinder A inside the oil box extends to make the oil push plate push the cooling oil, and the cooling oil will pass through the metal plate conveying table. At this time, the surface of the metal plate conveying table will be filled with cooling oil. The cooling oil can be applied to the steel plate when it moves. During stamping, the cooling oil can lubricate and cool the steel plate, so as to achieve the effect of integrated processing.

[0023] 3. The bending machine with a supporting device is provided with a transmission mechanism. When the steel plate needs to be moved after stamping, the hydraulic cylinder D extends, and a plurality of conveying wheels can be extended from the inside of the metal plate conveying platform. After the plurality of conveying wheels are extended, the entire steel plate can be supported, so that the steel plate can be transported forward after being sprayed with lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a side view of the structure of the present invention;

[0026] Figure 3 It is a front view of the structure of the present invention;

[0027] Figure 4 It is a partial structural schematic diagram of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the auxiliary mechanism of the present invention;

[0029] Figure 6 For the present invention Figure 5 A magnified view of the structure at center A;

[0030] Figure 7 For the present invention Figure 5 A magnified view of the structure at B in the middle;

[0031] Figure 8 It is a partial structural schematic diagram of the auxiliary mechanism of the present invention;

[0032] Fig. 9 It is a partial structural top view of the auxiliary mechanism of the present invention;

[0033] Fig.10 It is a cross-sectional view of the auxiliary mechanism of the present invention.

[0034] In the figure:

[0035] 1. Bending workbench; 2. Bending mechanism;

[0036] 201, bending base; 202, bending lower die; 203, bending upper die; 204, punching; 205, limit rod; 206, guide pillar; 207, hydraulic cylinder C;

[0037] 3. Auxiliary mechanism; 301. Metal plate conveying platform; 302. Oil box; 303. Oil hole; 304. Oil inlet pipe; 305. Oil push plate; 306. Hydraulic cylinder A; 307. Transmission mechanism;

[0038] 3071, hydraulic cylinder D; 3072, conveying wheel; 3073, wheel frame; 3074, groove; 3075, guide rod;

[0039] 308, initial pressure mechanism;

[0040] 3081, rocker arm; 3082, connecting rod; 3083, guide wheel; 3084, spring;

[0041] 309, force-bearing mounting frame; 310, positioning hole;

[0042] 4. Pressing mechanism; 401. Gantry; 402. Hydraulic cylinder E; 403. Pressing frame; 404. Vertical frame; 405. Horizontal frame;

[0043] 5. Adjusting mechanism; 501. Hydraulic cylinder B; 502. Wedge block A; 503. Wedge block B. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0046] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0048] like Figure 1-10 As shown, a bending machine with a supporting device includes a bending workbench 1, a bending mechanism 2, an auxiliary mechanism 3, a pressing mechanism 4 and an adjusting mechanism 5. The bending mechanism 2, the pressing mechanism 4, the adjusting mechanism 5 and the auxiliary mechanism 3 are all installed on the bending workbench 1.

[0049] The auxiliary mechanism 3 includes a metal plate conveying platform 301, which passes through the bending workbench 1 and is slidably connected thereto up and down. The interior of the metal plate conveying platform 301 is a hollow structure. An oil box 302 is fixedly installed on the internal top wall of the metal plate conveying platform 301. A plurality of oil holes 303 connected to the oil box 302 are provided on the upper surface of the metal plate conveying platform 301. An oil inlet pipe 304 connected to the oil box 302 is installed on one side of the metal plate conveying platform 301. An oil push plate 305 and two hydraulic cylinders A306 are fixed in the oil box 302. The output end of the hydraulic cylinder A306 is fixed to the bottom surface of the oil push plate 305. The oil push plate 305 moves up and down in the oil box 302 under the action of the hydraulic cylinder A306, so as to deliver the cooling oil in the oil box 302 to the surface of the metal plate conveying platform 301 through the oil holes 303.

[0050] There are two adjusting mechanisms 5, which are respectively located on the left and right sides of the metal plate conveying platform 301. The adjusting mechanism 5 includes a hydraulic cylinder B501, which is laterally fixed on the bending workbench 1. The output ends of the hydraulic cylinders B501 are fixedly installed with wedge blocks A502, and the sides of the metal plate conveying platform 301 are fixedly installed with wedge blocks B503. When the wedge block A502 pushes the wedge block B503, the metal plate conveying platform 301 can rise relative to the bending workbench 1.

[0051] The diameter of the oil hole 303 is relatively small, and the oil hole 303 is distributed in a matrix on the metal plate conveying platform 301. The hydraulic cylinder A306 is in the oil box 302, and its exterior is sealed. The oil inlet pipe 304 can deliver lubricating oil to the oil box 302 at any time during daily use.

[0052] The sides of the wedge block A502 and the wedge block B503 that fit each other are both smooth inclined surfaces, and grease is applied to the inclined surfaces of the two. The wedge block A502 can only operate in a straight line.

[0053] The bending mechanism 2 includes a bending base 201, a bending lower die 202 and a bending upper die 203. The bending base 201 is fixed to the upper surface of the bending workbench 1 and is located on one side of the metal plate conveying platform 301. A plurality of through holes 204 are provided on the bending base 201. A limit rod 205 is fixedly installed at the bottom of the bending lower die 202. The limit rod 205 is inserted into the through hole 204. Two groups of guide pillars 206 are fixed on one side of the bending base 201. The bending upper die 203 is fixed to the upper end of the guide pillar 206. The guide pillar 206 is a two-stage type and can be compressed.

[0054] It also includes two hydraulic cylinders C207 , which are fixed to the pressing mechanism 4 , and the output ends of the hydraulic cylinders C207 are fixed to the upper surface of the bending upper die 203 .

[0055] The bending lower die 202 can be pulled out from the bending base 201 at any time and then used to replace specifications of different sizes. The bending upper die 203 is connected to the hydraulic cylinder C207 with bolts and can also be replaced during daily use. The guide support 206 is a mold part in the prior art and can be retracted.

[0056] The auxiliary mechanism 3 also includes a transmission mechanism 307 and an initial pressure mechanism 308. The transmission mechanism 307 includes a hydraulic cylinder D3071 and a conveying wheel 3072. The hydraulic cylinder D3071 is fixed to the inner wall of the metal plate conveying platform 301, and a wheel frame 3073 is fixed to its output end. The conveying wheel 3072 is installed on the wheel frame 3073. The left and right sides of the upper end of the metal plate conveying platform 301 are both slope structures. The slope structure is provided with a through groove 3074. The wheel frame 3073 and the conveying wheel 3072 can pass through the through groove 3074 when the hydraulic cylinder D3071 is extended.

[0057] It also includes a guide rod 3075, which is fixed on the inner wall of the metal plate conveying platform 301, and one end of the wheel frame 3073 is sleeved on the guide rod 3075 and slidably connected thereto.

[0058] A hub motor is provided inside the conveying wheel 3072 , and a hinge wheel is provided on the outer circle of the conveying wheel 3072 to increase the friction between the conveying wheel 3072 and the metal plate. When the conveying wheel 3072 contacts the metal plate, the metal plate can be lifted and slightly away from the metal plate conveying platform 301 .

[0059] The initial pressure mechanism 308 includes a rocker arm 3081, a connecting rod 3082 and a guide wheel 3083. Two rockers 3081 are provided and are respectively located at the front and rear sides of the metal plate conveying platform 301. One end of the rocker arm 3081 is rotatably connected to the side of the metal plate conveying platform 301. The connecting rod 3082 is located between the ends of the two rockers 3081 away from the metal plate conveying platform 301. A plurality of guide wheels 3083 are provided and are evenly distributed. The connecting rod 3082 passes through the plurality of guide wheels 3083 and is fixed thereto.

[0060] It also includes a spring 3084 , two springs 3084 are provided, one end of the spring 3084 is connected to the end of the rocker arm 3081 away from the metal plate conveying platform 301 , and the other end of the spring 3084 is connected to the metal plate conveying platform 301 .

[0061] The guide wheel 3083 is a smooth metal wheel. When the metal plate moves, the guide wheel 3083 assists in pressing the metal plate and guiding the metal plate.

[0062] The pressing mechanism 4 includes a gantry 401 and a hydraulic cylinder E402. Two gantry 401 and two hydraulic cylinder E402 are provided. The two gantry 401 are respectively located at the front and rear sides of the metal plate conveying platform 301, and the bottom ends of the gantry 401 are fixed to the upper surface of the bending workbench 1, and the hydraulic cylinder E402 is fixed to the gantry 401.

[0063] It also includes a pressing frame 403. The output ends of the two hydraulic cylinders E402 are fixed to the pressing frame 403. The pressing frame 403 includes two vertical frames 404 and two horizontal frames 405. The vertical frames 404 and the horizontal frames 405 are fixed to form a rectangle.

[0064] The rectangular structure of the pressing frame 403 contacts the metal plate conveying platform 301 and can fix the metal plate.

[0065] There is a gap between the edge of the oil pushing plate 305 and the inner wall of the oil box 302 for oil passing.

[0066] When the oil pushing plate 305 moves downward, the lubricating oil can pass through the gap between the oil pushing plate 305 and the oil box 302 . When the oil pushing plate 305 moves upward, a part of the lubricating oil can be brought out of the oil hole 303 .

[0067] Two force-bearing mounting frames 309 are fixedly mounted on the bottom surface of the metal plate conveying platform 301 , and positioning holes 310 are provided on the force-bearing mounting frames 309 .

[0068] The force-bearing mounting frame 309 can be installed in conjunction with an existing bending machine, or can be used to adapt to the processing table installation in most factories.

[0069] When in use, the steel plate will enter between the bending lower die 202 and the bending upper die 203 when being bent. Before stamping and bending, the hydraulic cylinder E402 will extend to cause the press frame 403 to press the steel plate. Then, when the bending upper die 203 is close to the bending lower die 202, the steel plate will be bent. Before the steel plate is bent, when passing through the upper surface of the metal plate conveying platform 301, the hydraulic cylinder A306 inside the oil box 302 will extend to cause the oil push plate 305 to push the cooling oil, and the cooling oil will pass through the metal plate conveying platform 301. At this time, the surface of the metal plate conveying platform 301 will be filled with cooling oil. The cooling oil can be applied to the steel plate when it moves, and lubricating oil can be added to the oil box 302 through the oil inlet pipe 304.

[0070] During stamping, the cooling oil can lubricate and cool the steel plate. When the steel plate needs to be moved after stamping, the hydraulic cylinder D3071 extends, and multiple conveying wheels 3072 can extend from the inside of the metal plate conveying platform 301. After the multiple conveying wheels 3072 extend, the entire steel plate can be supported, so that the steel plate can be transported forward after being sprayed with lubricating oil. At this time, the initial pressure mechanism 308 can guide the steel plate. The conveying wheel 3072 can be electric or manual. When bending, the bending lower die 202 can be replaced and the bending lower die can be taken out. 202, the bending lower die 202 can be moved out of the bending base 201, so when bending the steel plate in the later stage, the height of the metal plate conveying platform 301 can be adjusted at any time according to the extended position of the hydraulic cylinder B501, thereby ensuring that the metal plate conveying platform 301 is at the same height as the bending lower die 202. Since the hydraulic cylinder B501 adopts a combination of wedge blocks A502 and B503 to change the height of the metal plate conveying platform 301, the metal plate conveying platform 301 can withstand greater pressure without changing its position. Combined with the pressure frame 403, the rear end of the longer workpiece will be supported during processing.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0072] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bending machine with a supporting device, comprising a bending workbench (1), characterized in that: It also includes a bending mechanism (2), an auxiliary mechanism (3), a pressing mechanism (4) and an adjusting mechanism (5), wherein the bending mechanism (2), the pressing mechanism (4), the adjusting mechanism (5) and the auxiliary mechanism (3) are all installed on a bending workbench (1); The auxiliary mechanism (3) comprises a metal plate conveying platform (301), the metal plate conveying platform (301) passes through the bending workbench (1) and is slidably connected thereto up and down, the interior of the metal plate conveying platform (301) is a hollow structure, an oil box (302) is fixedly installed on the internal top wall of the metal plate conveying platform (301), a plurality of oil holes (303) connected to the oil box (302) are provided on the upper surface of the metal plate conveying platform (301), and a An oil inlet pipe (304) is connected to the oil box (302), an oil push plate (305) and two hydraulic cylinders A (306) are fixed in the oil box (302), the output end of the hydraulic cylinder A (306) is fixed to the bottom surface of the oil push plate (305), and the oil push plate (305) moves up and down in the oil box (302) under the action of the hydraulic cylinder A (306), and is used to send the cooling oil in the oil box (302) through the oil hole (303) to the surface of the metal plate conveying platform (301); The adjusting mechanism (5) is provided with two, respectively located on the left and right sides of the metal plate conveying platform (301), and the adjusting mechanism (5) comprises a hydraulic cylinder B (501), the hydraulic cylinder B (501) is transversely fixed on the bending workbench (1), the output end of the hydraulic cylinder B (501) is fixedly installed with a wedge block A (502), and the side of the metal plate conveying platform (301) is fixedly installed with a wedge block B (503), and when the wedge block A (502) pushes the wedge block B (503), the metal plate conveying platform (301) can be lifted relative to the bending workbench (1).

2. A bending machine with a supporting device according to claim 1, characterized in that: The bending mechanism (2) comprises a bending base (201), a bending lower die (202) and a bending upper die (203); the bending base (201) is fixed to the upper surface of the bending workbench (1) and is located on one side of the metal plate conveying platform (301); a plurality of through holes (204) are provided on the bending base (201); a limiting rod (205) is fixedly installed at the bottom of the bending lower die (202); the limiting rod (205) is inserted into the through hole (204); two groups of guide pillars (206) are fixed to one side of the bending base (201); the bending upper die (203) is fixed to the upper end of the guide pillar (206); the guide pillar (206) is a two-stage type and can be compressed; It also includes two hydraulic cylinders C (207), the hydraulic cylinders C (207) are fixed to the pressing mechanism (4), and the output ends of the hydraulic cylinders C (207) are fixed to the upper surface of the bending upper die (203).

3. A bending machine with a supporting device according to claim 2, characterized in that: The auxiliary mechanism (3) further comprises a transmission mechanism (307) and an initial pressure mechanism (308); the transmission mechanism (307) comprises a hydraulic cylinder D (3071) and a conveying wheel (3072); the hydraulic cylinder D (3071) is fixed to the inner wall of the metal plate conveying platform (301); a wheel frame (3073) is fixed to the output end of the hydraulic cylinder D (3071); the conveying wheel (3072) is mounted on the wheel frame (3073); both left and right sides of the upper end of the metal plate conveying platform (301) are slope structures; a through groove (3074) is provided at the slope structure; the wheel frame (3073) and the conveying wheel (3072) can pass through the through groove (3074) when the hydraulic cylinder D (3071) is extended; It also includes a guide rod (3075), which is fixed on the inner wall of the metal plate conveying platform (301), and one end of the wheel frame (3073) is sleeved on the guide rod (3075) and slidably connected thereto.

4. A bending machine with a supporting device according to claim 3, characterized in that: The initial pressure mechanism (308) comprises a rocker arm (3081), a connecting rod (3082) and a guide wheel (3083). Two rocker arms (3081) are provided and are respectively located at the front and rear sides of the metal plate conveying platform (301). One end of the rocker arm (3081) is rotatably connected to the side of the metal plate conveying platform (301). The connecting rod (3082) is located between the ends of the two rocker arms (3081) away from the metal plate conveying platform (301). A plurality of guide wheels (3083) are provided and are evenly distributed. The connecting rod (3082) passes through the plurality of guide wheels (3083) and is fixed thereto. It also includes a spring (3084), wherein two springs (3084) are provided, one end of the spring (3084) is connected to an end of the rocker arm (3081) away from the metal plate conveying platform (301), and the other end of the spring (3084) is connected to the metal plate conveying platform (301).

5. A bending machine with a supporting device according to claim 4, characterized in that: The pressing mechanism (4) comprises a gantry (401) and a hydraulic cylinder E (402), two gantry (401) and two hydraulic cylinders E (402) are provided, the two gantry (401) are respectively located at the front and rear sides of the metal plate conveying platform (301), and the bottom ends of the gantry (401) are fixed to the upper surface of the bending workbench (1), and the hydraulic cylinder E (402) is fixed to the gantry (401); The invention also comprises a pressing frame (403), the output ends of the two hydraulic cylinders E (402) are fixed to the pressing frame (403), the pressing frame (403) comprises two longitudinal frames (404) and two transverse frames (405), and the longitudinal frames (404) and the transverse frames (405) are fixed to form a rectangle.

6. A bending machine with a supporting device according to claim 1, characterized in that: There is a gap between the edge of the oil pushing plate (305) and the inner wall of the oil box (302) for oil passing.

7. A bending machine with a supporting device according to claim 1, characterized in that: Two force-bearing mounting frames (309) are fixedly mounted on the bottom surface of the metal plate conveying platform (301), and positioning holes (310) are provided on the force-bearing mounting frames (309).

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