High strength steel sheet forming apparatus, method and square tube prepared thereby

Abstract

The application discloses a high-strength steel plate forming device, which comprises a feeding part, a first forming part, a second forming part, a heating part, a cooling part and a type correcting part arranged in sequence along the feeding direction of the steel plate. The first forming part comprises a lower base, the top end of the lower base is fixedly connected with an upper base, a lower cavity is formed in the lower base, a conveying part is fixedly arranged in the lower cavity, an upper cavity is formed in the upper base, a plurality of upper hydraulic cylinders are fixedly connected with the top wall of the upper cavity, the piston ends of the plurality of upper hydraulic cylinders are fixedly connected with an upper fixing seat, the bottom end of the upper fixing seat is fixedly connected with an upper pressing head, a horizontal extruding part is arranged on the side of the upper cavity away from the feeding part, and the upper pressing head and the horizontal extruding part correspond to the conveying part in a vertical direction. The device and the method can effectively lighten the steel square tube and finally realize the purpose of reducing the weight of the truck battery protection shell.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of material processing, and particularly relates to a high-strength steel plate forming device and method and a prepared square tube. BACKGROUND

[0002] Trucks are common transportation vehicles, and batteries are one of the essential functional parts of trucks, which can provide power for truck starting and power for truck headlights to facilitate night driving lighting, so the importance of batteries to trucks is self-evident. For such an important truck part, effective protection is needed. The commonly used protection method is to set a protective shell outside the battery to protect the battery from accidental impact and prolong the service life of the battery. However, the internal framework of the existing battery protective shell uses a steel square tube with a large weight, which will increase the self-weight of the truck. In order to reduce the self-weight of the truck, one of the effective means is to reduce the weight of the steel square tube. In order to achieve the lightweight of the steel square tube, the application provides a high-strength steel plate forming device and method. SUMMARY

[0003] The application aims to provide a high-strength steel plate forming device and method to solve the above problems and achieve effective lightweight of the steel square tube.

[0004] To achieve the above-mentioned purpose, the application provides the following scheme: a high-strength steel plate forming device, comprising a feeding part, a first forming part, a second forming part, a heating part, a cooling part and a profile correcting part arranged in sequence along the feeding direction of the steel plate.

[0005] The first forming part comprises a lower base, the top end of the lower base is fixedly connected with an upper base, a lower cavity is formed in the lower base, a conveying part is fixedly arranged in the lower cavity, an upper cavity is formed in the upper base, a plurality of upper hydraulic cylinders are fixedly connected to the top wall of the upper cavity, the piston ends of the plurality of upper hydraulic cylinders are fixedly connected with an upper fixing seat, an upper pressure head is fixedly connected to the bottom end of the upper fixing seat, a horizontal extrusion part is arranged on the side of the upper cavity away from the feeding part, and the upper pressure head and the horizontal extrusion part correspond to the conveying part in a top-to-bottom manner.

[0006] Preferably, a clearance groove is formed in the middle of the bottom end of the upper pressure head, a first pressure head support lug, a second pressure head support lug and a third pressure head support lug are arranged in sequence along the feeding direction of the steel plate on both sides of the clearance groove, and the heights of the first pressure head support lug, the second pressure head support lug and the third pressure head support lug increase in sequence.

[0007] Preferably, the conveying part comprises a first cylinder fixedly connected with the bottom wall of the lower cavity, one end of a slide rod is fixedly connected with the piston end of the first cylinder, the other end of the slide rod is slidably connected with a support seat, the bottom end of the support seat is fixedly connected with the bottom wall of the lower cavity, the middle part of the slide rod is fixedly connected with the bottom end of a fixed connecting rod, the bottom end of a support plate is fixedly connected with the top end of the fixed connecting rod, a plurality of lower hydraulic cylinders are fixedly connected with the top end of the support plate, the piston ends of the lower hydraulic cylinders are fixedly connected with a lower fixing seat, a plurality of magnet blocks are fixedly connected with the top end of the lower fixing seat, and the upper pressing head is in vertical correspondence with the lower fixing seat.

[0008] Preferably, the horizontal extrusion part comprises two symmetrically arranged additional blocks, the two additional blocks are respectively fixedly connected with the outer side wall of the upper top seat, a first accommodating cavity is formed in the side wall of each additional block close to the bottom of the upper top seat, a first hydraulic cylinder is fixedly arranged in the first accommodating cavity, the piston end of the first hydraulic cylinder is fixedly connected with a first pressing plate, and the first pressing plate is in sliding contact with the side wall of the first accommodating cavity.

[0009] Preferably, the second forming part comprises a forming table, a U-shaped cavity is formed in the forming table, a driving motor is arranged at the bottom of one end of the U-shaped cavity close to the lower base, one end of a conveying roller is fixedly connected with the output shaft of the driving motor, the other end of the conveying roller is rotatably connected with the forming table, the conveying roller is located directly below the U-shaped cavity, a center support block is arranged above one end of the U-shaped cavity away from the lower base, the center support block is fixedly connected with the forming table, and a second hydraulic cylinder is arranged on each side of one end of the U-shaped cavity away from the lower base, the piston end of the second hydraulic cylinder is fixedly connected with a second pressing plate.

[0010] Preferably, the heating part comprises a heating box, a base is arranged below the heating box, one end of a horizontal rod is fixedly connected with each of the two opposite side walls of the base, the other end of the horizontal rod is fixedly connected with a vertically arranged second cylinder, the piston end of the second cylinder is fixedly connected with a horizontally arranged third cylinder, the piston end of the third cylinder is fixedly connected with a clamping head, and the openings of the two clamping heads are oppositely arranged.

[0011] The cooling part comprises a cooling tank, the top end of the cooling tank is fixedly connected with a cooling box, a water collecting tank is arranged below the cooling tank, a plurality of forward rollers are rotatably arranged in the cooling tank, a plurality of liquid leakage holes are formed in the bottom wall of the cooling tank, a plurality of spray heads are fixedly connected with the top wall of the cooling box, and the bottom end of the cooling box is open.

[0012] Preferably, the profiling part comprises a profiling table, a profiling cavity is formed in the middle of one end of the profiling table close to the lower base, the other end of the profiling table is closed, a profiling support block is arranged in the center of the profiling cavity, a third containing cavity is formed in each of the four side walls of the profiling cavity, a third hydraulic cylinder is fixedly arranged in each of the third containing cavities, a third pressing plate is fixedly connected to the piston end of the third hydraulic cylinder, and the third pressing plate is in sliding contact with the inner side wall of the third containing cavity.

[0013] Preferably, the feeding part comprises two guide plates arranged oppositely and obliquely, the oblique directions of the two guide plates are opposite, one end of each of the two guide plates close to each other is fixedly connected with a limiting plate, the two limiting plates are arranged in parallel, and a plurality of rolling shafts are rotatably arranged between the two guide plates and between the two limiting plates.

[0014] A forming method of a high-strength steel plate forming device, comprising the following steps:

[0015] S1, placing a steel plate on the feeding part to start feeding;

[0016] S2, the steel plate enters the first forming part to start processing the primary forming;

[0017] S3, the steel plate processed by the first forming part enters the second forming part to be processed into a square tube;

[0018] S4, the square tube processed in the second forming part enters the heating part for heating, and after the heating is completed, enters the cooling part for cooling;

[0019] S5, the square tube cooled in the cooling part enters the profiling part for profiling.

[0020] The application of the square tube processed by the high-strength steel plate forming method.

[0021] The application has the following technical effects:

[0022] The high-strength steel plate forming device can reprocess the high-strength steel plate through the feeding part, the first forming part, the second forming part, the heating part, the cooling part and the profiling part, so as to further improve the performance of the high-strength steel plate while reducing the weight of the steel plate. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 It is a whole arrangement drawing of the device of the present application.

[0025] Figure 2 It is a sectional view of the first forming part of the present application.

[0026] Figure 3 It is a side view of the lower base of the present application.

[0027] Figure 4 It is an axonometric view of the upper press head of the present application.

[0028] Figure 5 It is a lateral sectional view of the horizontal extruding part of the present application.

[0029] Figure 6 It is a left side sectional view of the forming table of the present application.

[0030] Figure 7 It is a right side sectional view of the forming table of the present application.

[0031] Figure 8 It is a lateral sectional view of the type correcting table of the present application.

[0032] Figure 9 It is a structure schematic view of the feeding part of the present application.

[0033] Figure 10 It is a top view of the feeding part of the present application.

[0034] Figure 11 It is a structure schematic view of the heating part of the present application.

[0035] Figure 12 It is a structure schematic view of the cooling part of the present application.

[0036] 1, upper top seat; 2, lower base; 3, forming table; 4, heating box; 5, cooling box; 6, cooling tank; 7, type correcting table; 8, upper cavity; 9, lower cavity; 10, upper hydraulic cylinder; 11, upper fixed seat; 12, upper pressure head; 13, first cylinder; 14, sliding rod; 15, support seat; 16, fixed connecting rod; 17, support plate; 18, lower hydraulic cylinder; 19, lower fixed seat; 20, magnet block; 21, connecting rod; 22, additional block; 23, first pressing plate; 24, first hydraulic cylinder; 25, first containing cavity; 26, driving motor; 27, conveying roller; 28, U-shaped cavity; 29, center support block; 30, second hydraulic cylinder; 31, second pressing plate; 32, type correcting cavity; 33, type correcting support block; 34, third containing cavity; 35, third hydraulic cylinder; 36, third pressing plate; 37, guide plate; 38, limiting plate; 39, roller; 40, first supporting leg; 41, second supporting leg; 42, base; 43, horizontal rod; 44, second cylinder; 45, third cylinder; 46, clamping head; 47, third supporting leg; 48, spray head; 49, vertical connecting rod; 50, forward roller; 51, liquid leakage hole; 52, water collecting tank; 53, fourth supporting leg; 54, fifth supporting leg; 1201, let go of the slot; 1202, first pressure head lug; 1203, second pressure head lug; 1204, third pressure head lug. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0039] Reference Figures 1-12 The present application provides a high-strength steel plate forming device, which comprises a feeding part, a first forming part, a second forming part, a heating part, a cooling part and a type correcting part arranged in sequence along the feeding direction of the steel plate.

[0040] The first forming part comprises a lower base 2, the top end of the lower base 2 is fixedly connected with an upper top seat 1, the lower base 2 is provided with a lower cavity 9, the lower cavity 9 is fixedly provided with a conveying part, the upper top seat 1 is provided with an upper cavity 8, the top wall of the upper cavity 8 is fixedly connected with a plurality of upper hydraulic cylinders 10, the piston ends of the plurality of upper hydraulic cylinders 10 are fixedly connected with an upper fixed seat 11, the bottom end of the upper fixed seat 11 is fixedly connected with an upper pressure head 12, the side of the upper cavity 8 away from the feeding part is provided with a horizontal extrusion part, the upper pressure head 12 and the horizontal extrusion part correspond to the conveying part in up-down direction.

[0041] Further, the lower base 2 is fixedly connected with the upper base 1 through the connecting rod 21.

[0042] Further, the upper pressing head 12 is provided with a clearance slot 1201 in the middle of the bottom end, and the first pressing head lug 1202, the second pressing head lug 1203 and the third pressing head lug 1204 are sequentially arranged on both sides of the clearance slot 1201 along the feeding direction of the steel plate, and the heights of the first pressing head lug 1202, the second pressing head lug 1203 and the third pressing head lug 1204 increase sequentially.

[0043] In the process of pressing down the upper pressing head 12, the first pressing head lug 1202 first contacts and stamp forms the steel plate, after the stamping of the first pressing head lug 1202 is completed, the upper pressing head 12 is lifted, the conveying part drives the steel plate to advance to the next station, after advancing to the next station, the upper pressing head 12 is pressed down again, after the first pressing head lug 1202 is pressed down to the position, the first pressing head lug 1202 stamp forms the steel plate at the rear of the previous processing position, and the second pressing head lug 1203 stamp forms the position of the steel plate stamp formed by the first pressing head lug 1202 last time, after the stamping of the first pressing head lug 1202 and the second pressing head lug 1203 is completed, the upper pressing head 12 is lifted, and the conveying part drives the steel plate to advance to the next station again, and the process is repeated.

[0044] Further, the conveying part comprises a first air cylinder 13, the first air cylinder 13 is fixedly connected with the bottom wall of the lower cavity 9, one end of the piston of the first air cylinder 13 is fixedly connected with a slide rod 14, the other end of the slide rod 14 is slidably connected with a support seat 15, the bottom end of the support seat 15 is fixedly connected with the bottom wall of the lower cavity 9, the middle of the slide rod 14 is fixedly connected with the bottom end of a fixed connecting rod 16, the top end of the fixed connecting rod 16 is fixedly connected with the bottom end of a support plate 17, the top end of the support plate 17 is fixedly connected with a plurality of equally spaced lower hydraulic cylinders 18, the pistons of the plurality of lower hydraulic cylinders 18 are fixedly connected with a lower fixing seat 19, the top end of the lower fixing seat 19 is fixedly connected with a plurality of equally spaced magnet blocks 20, and the upper pressing head 12 is in vertical correspondence with the lower fixing seat 19.

[0045] After the steel plate conveyed by the feeding part reaches above the lower fixing base 19, the lower hydraulic cylinder 18 piston end extends, drives the lower fixing base 19 to rise and contact the steel plate, after the contact, the magnet block 20 adsorbs and fixes the steel plate, then the piston end of the first cylinder 13 extends, the slide rod 14 slides to drive the steel plate adsorbed by the magnet block 20 to advance to a processing station, after advancing to the next processing station, the piston end of the lower hydraulic cylinder 18 retracts, the lower fixing base 19 drives the steel plate to descend, the steel plate is limited by the two partitions on the top of the lower base 2 in the process of descending, and is separated from the magnet block 20, after the separation, the piston end of the first cylinder 13 retracts, drives the slide rod 14 to slide back to the initial position, then the piston end of the first cylinder 13 extends again, repeats the above movement process, realizes the steel plate continuously advancing to the next station, and completes the forming process in the process of advancing.

[0046] Further optimization scheme, the horizontal extrusion part includes two additional blocks 22 which are symmetrically arranged, the two additional blocks 22 are fixedly connected with the outer side wall of the upper top base 1 respectively, a first containing cavity 25 is formed in the side wall bottom of the upper top base 1 close to each additional block 22, a first hydraulic cylinder 24 is fixedly arranged in the first containing cavity 25, a first pressing plate 23 is fixedly connected with the piston end of the first hydraulic cylinder 24, and the first pressing plate 23 is in sliding contact with the side wall of the first containing cavity 25.

[0047] After the steel plate stamped and formed by the third pressure head supporting ear 1204 of the first cylinder 13 is conveyed between the two first hydraulic cylinders 24, the piston end of the first hydraulic cylinder 24 extends, drives the first pressing plate 23 to advance to horizontally stamp and form the steel plate stamped and formed by the third pressure head supporting ear 1204, after the first position of the steel plate is horizontally stamped and formed, the first cylinder 13 drives the steel plate to advance, so that the second position of the steel plate reaches between the two first hydraulic cylinders 24, and the horizontal stamping and forming is started.

[0048] Further optimization scheme, the second forming part includes a forming table 3, a U-shaped cavity 28 is formed in the forming table 3, a driving motor 26 is arranged on the bottom of one end of the U-shaped cavity 28 close to the lower base 2, one end of a conveying roller 27 is fixedly connected with the output shaft of the driving motor 26, the other end of the conveying roller 27 is rotatably connected with the forming table 3, the conveying roller 27 is located directly below the U-shaped cavity 28, a center supporting block 29 is arranged above one end of the U-shaped cavity 28 away from the lower base 2, the center supporting block 29 is fixedly connected with the forming table 3, second hydraulic cylinders 30 are arranged on the two sides of one end of the U-shaped cavity 28 away from the lower base 2 respectively, and second pressing plates 31 are fixedly connected with the piston ends of the second hydraulic cylinders 30.

[0049] Further, the bottom end of the forming table 3 is fixedly connected with second supporting legs 41 respectively at four corners, and the second pressing plate 31 is L-shaped.

[0050] The horizontal stamping finished steel plate semi-finished product reaches the left end of the forming table 3 and enters the U-shaped cavity 28. The driving motor 26 works to drive the conveying roller 27 to rotate and transport the steel plate semi-finished product to the inside of the forming table 3. After the steel plate semi-finished product is transported to the position, the piston end of the two second hydraulic cylinders 30 extends to drive the second pressing plate 31 to approach the steel plate semi-finished product and start stamping and forming. After stamping is completed, the steel square tube finished product can be obtained. The steel square tube finished product is pushed out of the forming table 3 by the next steel plate semi-finished product transported by the conveying roller 27, and the forming table 3 is opened to stamp and form the next steel plate semi-finished product.

[0051] Further optimization scheme, the heating part includes a heating box 4, a base 42 is arranged below the heating box 4, two opposite side walls of the base 42 are fixedly connected with one end of a horizontal rod 43 respectively, the other end of the horizontal rod 43 is fixedly connected with a second air cylinder 44 arranged vertically, a third air cylinder 45 arranged horizontally is fixedly connected to the piston end of the second air cylinder 44, a clamping head 46 is fixedly connected to the piston end of the third air cylinder 45, and the openings of the two clamping heads 46 are oppositely arranged.

[0052] The cooling part includes a cooling tank 6, the top end of the cooling tank 6 is fixedly connected with a cooling box 5, a water collecting tank 52 is arranged below the cooling tank 6, a plurality of forward rollers 50 are arranged at intervals in the cooling tank 6, a plurality of liquid leakage holes 51 are formed in the bottom wall of the cooling tank 6, a plurality of spray heads 48 are fixedly connected to the top wall of the cooling box 5, and the bottom end of the cooling box 5 is arranged as an opening.

[0053] Further, the third supporting leg 47 is fixedly connected to the bottom end of the heating box 4 respectively, the cooling box 5 and the cooling tank 6 are fixedly connected through a vertical connecting rod 49, and the fourth supporting leg 53 is fixedly connected to the bottom end of the cooling tank 6 respectively.

[0054] The steel square tube finished product is transferred to the base 42, the piston end of the second air cylinder 44 on the two sides of the base 42 is extended, so that the clamping head 46 clamps the steel square tube finished product, and then the piston end of the second air cylinder 44 is continuously extended to transport the steel square tube finished product upward to the heating box 4, so as to start heating treatment on the steel square tube finished product. The heating mode can be any one of inductive coil heating, flame heating, microwave heating and electric heating; after heating is completed, the piston end of the second air cylinder 44 is retracted, so that the steel square tube falls on the base 42, then the piston end of the third air cylinder 45 is retracted to release the clamped steel square tube, and then the steel square tube is transferred to the cooling tank 6 for cooling. The forward roller 50 located at the most front end has an output shaft of a power motor (not shown in the figure) connected to the shaft, the power motor works to drive the forward roller 50 to rotate, so that the steel square tube can slowly advance in the cooling tank 6. In the process of advancing of the steel square tube, water or other cooling liquid is sprayed out of the spray head 48 to cool the steel square tube. The sprayed water or cooling liquid is collected into the water collecting tank 52 for reuse through the liquid leakage holes 51. The cooled steel square tube is transferred to the profiling part for profiling.

[0055] Further optimization scheme, the type of department includes a type of table 7, the type of table 7 is opened in the middle of the end of the lower base 2 Type cavity 32, the other end of the type of table 7 is closed, the center of the type of cavity 32 is provided with a type of support block 33, the four side walls of the type of cavity 32 are respectively provided with a third containing cavity 34, a third hydraulic cylinder 35 is fixedly arranged in each third containing cavity 34, a third pressing plate 36 is fixedly connected to the piston end of the third hydraulic cylinder 35, and the third pressing plate 36 is in sliding contact with the inner side wall of the third containing cavity 34.

[0056] Further, the fifth leg 54 is fixedly connected to the four corners of the bottom end of the type of table 7.

[0057] The finished steel square tube is transferred into the type cavity 32 by artificial or mechanical hand, and then the piston end of the third hydraulic cylinder 35 of the four side walls of the type cavity 32 is extended to drive the third pressing plate 36 to approach the steel square tube, and after contacting the steel square tube, the pressure is applied to the type, and the type support block 33 supports the steel square tube from the inside of the steel square tube during the type process, so that the type amount is prevented from being too large, and after the type is completed, the steel square tube is taken out from the insertion direction of the steel square tube by artificial or mechanical hand, and after being taken out, the next steel square tube is subjected to the type.

[0058] Further optimization scheme, the feeding part includes two oppositely inclined guide plates 37, the two guide plates 37 are oppositely inclined, the two guide plates 37 are fixedly connected to the limiting plates 38 at the end close to each other, the two limiting plates 38 are parallelly arranged, a plurality of rolling shafts 39 are rotatably arranged between the two guide plates 37 and between the two limiting plates 38, and the lengths of the rolling shafts 39 gradually decrease along the steel plate feeding direction.

[0059] Further, the first leg 40 is fixedly connected to the bottom end of the guide plate 37 and the limiting plate 38.

[0060] A forming method of a high-strength steel plate forming device, comprising the following steps:

[0061] S1, the steel plate is placed on the feeding part to start feeding; the steel plate of the size machined is placed on the rolling shaft 39 to feed, which can choose to manually push the steel plate forward or choose to drive the rolling shaft 39 to rotate to convey the steel plate forward, and after the steel plate advances to between the two limiting plates 38, it is limited to be parallel to the lower fixed base 19, and gradually enters between the lower fixed base 19 and the upper pressure head 12.

[0062] S2, the steel plate enters the first forming part to start processing the primary forming; the piston end of the upper hydraulic cylinder 10 is extended to drive the upper pressure head 12 to stamp and form the steel plate, and the first pressing plate 23 continues to stamp and form after the upper pressure head 12 is stamped.

[0063] S3, the first forming part processes the initial formed steel plate into the second forming part to process into a square tube; after the first pressing plate 23 is punched, the steel plate is transported out of the lower base 2, at this time the steel plate is turned over, and the turned over steel plate is transported into the U-shaped cavity 28 to perform square tube forming stamping.

[0064] S4, the square tube processed in the second forming part enters the heating part to be heated, and after heating is completed, enters the cooling part to be cooled; after the square tube is formed, it is first transferred to the heating box 4 to be heated, and after heating, it is transferred to the cooling tank 6 to be cooled.

[0065] S5, the square tube cooled in the cooling part enters the sizing part to be sized, and the steel square tube after the cooling treatment is transferred to the sizing cavity 32 to be sized by the four third pressing plates 36.

[0066] The application of a square tube formed by a high-strength steel plate forming method is applied to the framework of a truck battery protection box.

[0067] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0068] The above-described embodiments are only descriptions of the preferred modes of the present application and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope determined by the claims of the present application.

Claims

1. A high-strength steel sheet forming apparatus characterized by comprising: The first forming part includes a lower base, the top end of which is fixedly connected with an upper base, a lower cavity is formed in the lower base, a conveying part is fixedly arranged in the lower cavity, an upper cavity is formed in the upper base, a plurality of upper hydraulic cylinders are fixedly connected with the top wall of the upper cavity, the piston ends of the upper hydraulic cylinders are fixedly connected with an upper fixing seat, the bottom end of the upper fixing seat is fixedly connected with an upper pressing head, a horizontal extrusion part is arranged on the side of the upper cavity away from the feeding part, and the upper pressing head and the horizontal extrusion part correspond to the conveying part in a vertical direction. The second forming part includes a forming table, a U-shaped cavity is formed in the forming table, a driving motor is arranged on the bottom of the end of the U-shaped cavity close to the lower base, the output shaft of the driving motor is fixedly connected with one end of a conveying roller, the other end of the conveying roller is rotatably connected with the forming table, the conveying roller is located directly below the U-shaped cavity, a center support block is arranged above the end of the U-shaped cavity away from the lower base, the center support block is fixedly connected with the forming table, and second hydraulic cylinders are arranged on the two sides of the end of the U-shaped cavity away from the lower base. The correcting part includes a correcting table, a correcting cavity is formed in the middle of the end of the correcting table close to the lower base, the other end of the correcting table is closed, a correcting support block is arranged in the center of the correcting cavity, third accommodating cavities are formed in the four side walls of the correcting cavity, respectively, a third hydraulic cylinder is fixedly arranged in each third accommodating cavity, the piston end of the third hydraulic cylinder is fixedly connected with a third pressing plate, and the third pressing plate is in sliding contact with the inner side wall of the third accommodating cavity. The bottom end of the upper pressing head is provided with a recess, first, second and third pressing head supporting ears are arranged on the two sides of the recess in the feeding direction of the steel plate, and the heights of the first, second and third pressing head supporting ears increase in sequence. The conveying part includes a first cylinder, the first cylinder is fixedly connected with the bottom wall of the lower cavity, the piston end of the first cylinder is fixedly connected with one end of a sliding rod, the other end of the sliding rod is slidably connected with a supporting seat, the bottom end of the supporting seat is fixedly connected with the bottom wall of the lower cavity, the middle of the sliding rod is fixedly connected with the bottom end of a fixed connecting rod, the bottom end of the supporting plate is fixedly connected with the top end of the fixed connecting rod, a plurality of equally-spaced lower hydraulic cylinders are fixedly connected with the top end of the supporting plate, the piston ends of the lower hydraulic cylinders are fixedly connected with a lower fixing seat, a plurality of equally-spaced magnet blocks are fixedly connected with the top end of the lower fixing seat, and the upper pressing head corresponds to the lower fixing seat in a vertical direction. The horizontal extrusion part includes two symmetrically-arranged additional blocks, the outer side walls of the upper base are fixedly connected with the two additional blocks, respectively, a first accommodating cavity is formed in the side wall bottom of each additional block close to the upper base, a first hydraulic cylinder is fixedly arranged in the first accommodating cavity, the piston end of the first hydraulic cylinder is fixedly connected with a first pressing plate, and the first pressing plate is in sliding contact with the side wall of the first accommodating cavity.

2. The high-strength steel sheet forming apparatus according to claim 1, wherein ​ 3. The high-strength steel sheet forming apparatus according to claim 1, wherein The heating part includes a heating box, a base is arranged below the heating box, two opposite side walls of the base are respectively fixedly connected with one end of a horizontal rod, the other end of the horizontal rod is fixedly connected with a second cylinder arranged vertically, the piston end of the second cylinder is fixedly connected with a third cylinder arranged horizontally, the piston end of the third cylinder is fixedly connected with a clamping head, and the openings of the two clamping heads are oppositely arranged. The cooling part includes a cooling tank, the top end of the cooling tank is fixedly connected with a cooling box, a water collecting tank is arranged below the cooling tank, a plurality of forward rollers are rotationally arranged in the cooling tank, a plurality of liquid leakage holes are arranged in the bottom wall of the cooling tank, a plurality of spray heads are fixedly connected to the top wall of the cooling box, and the bottom end of the cooling box is arranged as an opening.

4. The high-strength steel sheet forming apparatus according to claim 1, wherein The feeding part includes two oppositely inclined guide plates, the inclined directions of the two guide plates are opposite, one end of each of the two guide plates close to each other is fixedly connected with a limiting plate, the two limiting plates are arranged in parallel, a plurality of rolling shafts are rotationally arranged between the two guide plates and between the two limiting plates, and the lengths of the rolling shafts gradually decrease along the feeding direction of the steel plate.

5. A method of forming a high-strength steel sheet according to any one of claims 1 to 4, characterized by, The method includes the following steps: S1, placing a steel plate on the feeding part to start feeding; S2, the steel plate enters the first forming part to start processing the initial forming; S3, the steel plate processed by the first forming part enters the second forming part to be processed into a square tube; S4, the square tube processed in the second forming part enters the heating part for heating, and after the heating is completed, it enters the cooling part for cooling; S5, the square tube cooled in the cooling part enters the type correcting part for type correction.

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