Efficient automatic shearing device for metal plates

Abstract

An efficient automatic metal plate shearing device belongs to the technical field of metal plate shearing and comprises a lower frame, an upper frame, a shearing mechanism, a shearing positioning mechanism and a plate fixing mechanism. The lower frame comprises four supporting legs, a high telescopic connecting rod and a low telescopic connecting rod which are fixedly connected with the supporting legs, a steel wire coil fixedly installed on one telescopic connecting rod, a lead screw for adjusting the size of the adjusting frame and the adjusting frame. The air cylinder installed below the lantern ring II pushes the clamping plate frame to move, the clamping plate frame and the friction clamping plate II are made to move to the designated position, the corners of the metal plate enter the clamping plate frame and abut against the clamping plate frame, the air cylinder arranged on the friction clamping plate II pushes the friction clamping plate II to move downwards, and the metal plate is clamped between the clamping plate frame and the friction clamping plate II. The four corners of the metal plate are fixed by the four clamping assemblies, so that the metal plate is automatically positioned and fixed.

Description

Technical Field

[0001] The present invention relates to the technical field of metal sheet shearing, and particularly to an efficient automatic metal sheet shearing device. Background Art

[0002] With the vigorous development of the social economy and the accelerating advancement of the industrialization process, metal sheets, as an essential basic material in the manufacturing industry, have shown a continuous growth trend in demand. However, the current status of metal sheet shearing operations is difficult to meet this increasing demand. Traditional metal sheet shearing equipment relies to a large extent on manual assistance. Not only is manual operation and monitoring required during the shearing process, but also after shearing, it is necessary for workers to take out the finished sheet one by one. This link not only consumes time and effort but also increases the labor intensity of the operators.

[0003] More critically, existing metal sheet shearing equipment is often designed for specific-sized sheets, which means that different specifications and sizes of sheets require different equipment to complete the shearing task. This single-purpose equipment configuration undoubtedly limits the flexibility and efficiency of production, especially when faced with diverse and small-batch customized production requirements, it is even more stretched.

[0004] In addition, there are also obvious deficiencies in the positioning and fixing of existing metal sheet shearing equipment. Currently, most equipment still uses manual methods for sheet positioning and fixing. This process not only takes a long time and reduces the overall production efficiency but also is prone to inaccurate positioning due to human factors, thus affecting the shearing accuracy and product quality. At the same time, long-term reliance on manual operation also increases safety hazards and is not conducive to ensuring the life safety and physical health of operators. Summary of the Invention

[0005] In view of the above problems, the present invention provides an efficient automatic metal sheet shearing device to solve the problems raised in the above background art.

[0006] The technical solution adopted by the present invention is: an efficient automatic metal sheet shearing device, including a lower frame, an upper frame, a shearing mechanism, a shearing positioning mechanism, and a sheet fixing mechanism; the lower frame includes four legs, two telescopic connecting rods of different heights fixedly connected to the legs, a wire reel fixedly installed on one of the telescopic connecting rods, a lead screw for adjusting the size of the adjusting frame, and an adjusting frame. The shearing mechanism includes slide rail I and slide rail II which are slidably connected to each other to form a telescopic slide rail, a power component backing plate and a guide rail slider which are fixedly connected to each other, a gear arranged in the middle groove of the guide rail slider, a power shaft fixedly installed through the power component backing plate and the guide rail slider and connected to the gear, a power component arranged on the power component backing plate to provide power for the power shaft, a connecting block fixedly connected to the guide rail slider, a connecting block fixedly connected to the connecting block and provided with cylinder cutter holders on both sides and a circular cutter rotatably installed at the middle position of the cutter holder; The sheet fixing mechanism includes a scissors frame with chutes provided on all four side rods, collar I and collar II sleeved on the side rods of the scissors frame and slidably connected to the side rods of the scissors frame, set screws for fixing collar I and collar II, a connecting plate slidably connected to a slide rod provided under collar I, a clamping plate frame fixedly installed on the connecting plate, and a friction clamping plate II slidably installed inside the clamping plate frame and equipped with a cylinder.

[0007] Preferably, the adjustment frame includes four corner frames which serve as the frames of the telescopic mechanism and jointly form the frame with the four side frames; meanwhile, there are two such adjustment frames, one located in the lower frame and the other located in the upper frame.

[0008] Preferably, the upper frame includes a support rod I connecting the corner frames in the adjustment frame in the upper frame and the corner frames in the adjustment frame in the lower frame, a convex shaft fixedly installed on the corner frames in the adjustment frame in the upper frame, and a sliding shaft fixedly installed on the corner frames in the adjustment frame in the upper frame to support the side frames.

[0009] Preferably, the shearing positioning mechanism includes two U-shaped frames connected by a support rod II, a friction clamping plate I slidably installed inside the U-shaped frames, and a tightening screw threadedly installed in a threaded hole provided in a baffle at one end of the U-shaped frame to drive the friction clamping plate I to move; meanwhile, there are two such shearing positioning mechanisms arranged in a mirror-symmetrical manner.

[0010] Preferably, the shearing mechanism further includes a backing plate I and a backing plate II fixedly connected to different U-shaped frames and slidably connected to each other to provide support for the circular cutter during shearing operations, and a guide rail I and a guide rail II respectively fixedly connected to the backing plate I and the backing plate II to provide moving guidance for the metal sheet to be cut.

[0011] Preferably, another cylinder for pushing the clamping plate frame to move horizontally is installed on the side of the baffle provided on the clamping plate frame, and this cylinder is fixedly installed on the baffle provided under collar II; collar I, the clamping plate frame, the friction clamping plate II, collar II, and the connecting plate form a clamping assembly, and there are four such clamping assemblies installed on the four plate rods of the scissors frame.

[0012] Preferably, slide rail I is fixedly connected to a U-shaped frame on a frame of an adjusting frame in an upper frame, and slide rail II is fixedly connected to a U-shaped frame on another frame of an adjusting frame in an upper frame. Racks that can mesh with gears are provided inside slide rail I and slide rail II, and the two racks are arranged one above the other.

[0013] Preferably, there are multiple wire rolls with wire ropes wound around them, and the rope ends of the wires are put on another telescopic connecting rod. An inclined plane composed of multiple wire ropes is formed between the two telescopic connecting rods. The cut metal sheet falls onto this inclined plane, and the soft feature of the rope is used to provide a buffer for the metal sheet.

[0014] Beneficial effects of the present invention: 1. The cylinder installed under the collar II pushes the clamping frame to move, so that the clamping frame and the friction clamping plate II move to the specified position, and the corners of the metal plate enter the clamping frame and hold it, and the cylinder installed on the friction clamping plate II pushes the friction clamping plate II downward to clamp the metal plate between the clamping frame and the friction clamping plate II. The four corners of the metal plate are fixed by four clamping components, thereby realizing automatic positioning and fixing of the metal plate; 2. According to the metal sheet to be cut, the screw rod is turned to drive the frame to expand and contract, so as to adjust the two adjustment frames to the specified size. According to the size of the metal sheet, the ring I and the ring II are moved to the specified position on the side rod of the scissor frame and fixed, so that the equipment is suitable for cutting metal sheets of different sizes; 3. The external handling device moves another metal sheet onto guide rails I and II. At this time, this metal sheet pushes the sheared metal sheet to move, causing the sheared metal sheet to slide through the gap of the equipment, fall onto the wire rope, and then slide out of the equipment from the wire rope, and then cut the next metal sheet, thus realizing the automatic discharge of the metal sheet and reducing the possibility of damage to the discharged metal sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first angle.

[0016] Figure 2 It is a schematic diagram of the second angle of the overall structure of the present invention.

[0017] Figure 3 It is a structural schematic diagram of the lower frame parts of the present invention.

[0018] Figure 4 It is a structural schematic diagram of the adjustment frame in the lower frame of the present invention.

[0019] Figure 5 It is a structural schematic diagram of some parts of the adjustment frame of the present invention.

[0020] Figure 6 This is a schematic structural diagram of some parts of the shearing mechanism of the present invention.

[0021] Figure 7 This is a schematic structural diagram of the upper frame of the present invention.

[0022] Figure 8 This is a schematic structural diagram of the shearing positioning mechanism of the present invention.

[0023] Figure 9 This is a schematic structural diagram of some parts of the shearing positioning mechanism and the shearing mechanism of the present invention.

[0024] Figure 10 This is the Figure 9 Schematic enlarged partial structural diagram at A1 of the present invention.

[0025] Figure 11 This is a schematic cross-sectional structural diagram of slide rail I and slide rail II of the present invention.

[0026] Figure 12 This is a schematic structural diagram of some parts of the shearing mechanism of the present invention.

[0027] Figure 13 This is a schematic structural diagram of the sheet fixing mechanism of the present invention.

[0028] Figure 14 This is a schematic structural diagram of the clamping assembly of the present invention.

[0029] Reference numerals: 1, leg; 2, telescopic connecting rod; 3, wire reel; 4, corner frame; 5, frame; 6, lead screw; 7, backing plate I; 8, backing plate II; 9, guide rail I; 10, guide rail II; 11, support rod I; 12, convex shaft; 13, sliding shaft; 14, U-shaped frame; 15, friction clamping plate I; 16, tightening screw; 17, support rod II; 18, slide rail I; 19, slide rail II; 20, power assembly backing plate; 21, guide rail slider; 22, gear; 23, power shaft; 24, power assembly; 25, cutter holder; 26, circular cutter; 27, scissors holder; 28, collar I; 29, clamping plate holder; 30, friction clamping plate II; 31, collar II; 32, setscrew; 33, connecting plate; 34, connecting block. Detailed implementation manners

[0030] The following further specifically describes the technical solutions of the present invention through embodiments in conjunction with the drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementations disclosed below.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is only for the convenience of simplifying the description of the present invention patent 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. Therefore, it should not be construed as a limitation to the present invention patent. In addition, for the convenience of description, spatial relative terms can be used in the text, for example, "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature relative to other elements or features as shown in the drawings. The spatial relative terms are intended to include different orientations of the device in use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive words used in the text can be interpreted accordingly. It should be noted that in this article, some connection methods, such as "fixed connection, fixed installation", refer to including but not limited to the fixation of two components between two parts, such as: welding, screw and nut fixation, adhesion, riveting, interference fit, etc. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood through specific circumstances.

[0032] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0033] Example: As Figures 1-14 shown, an efficient automatic shearing device for metal sheets includes a lower frame, an upper frame, a shearing mechanism, a shearing positioning mechanism, and a sheet fixing mechanism As Figures 3-5As shown in the figure, the lower frame includes: legs 1, telescopic connecting rods 2, wire reels 3, lead screws 6, and an adjustment frame; the adjustment frame includes: angle frames 4 and side frames 5; the side frames 5 are telescopic mechanisms, and the four side frames 5 and the four angle frames 4 together form a frame. Since the side frames 5 are telescopic mechanisms, the frame formed by the side frames 5 and the angle frames 4 can be adjusted; there are two adjustment frames, one is located in the lower frame and the other is located in the upper frame; there are four legs 1, all placed on the ground, and the upper ends of the legs 1 are fixedly connected to the angle frames 4 in the adjustment frame located in the lower frame; there are two telescopic connecting rods 2, and the two ends of one telescopic connecting rod 2 are respectively fixedly connected to the two legs 1, and the two telescopic connecting rods 2 are at different heights; there are multiple wire reels 3, the wire reels 3 are fixedly installed on one of the telescopic connecting rods 2, steel wires are wound around the wire reels 3, and the ends of the steel wires are sleeved on the other telescopic connecting rod 2. An inclined plane composed of multiple steel wires is formed between the two telescopic connecting rods 2. The cut metal plates fall onto this inclined plane and then slide out of the device along the inclined plane. Using steel wires to form the inclined plane can utilize the soft characteristics of the ropes to provide buffering for the metal plates and avoid damage to the metal plates caused by falling onto a hard inclined plane; the lead screw 6 is installed in the adjustment frame located in the lower frame, and one end of the lead screw 6 is rotatably installed on the angle frame 4 and the other end is threadedly installed on the side frame 5. By rotating the lead screw 6, the side frame 5 is driven to expand and contract, thereby adjusting the size of the adjustment frame located in the lower frame. Each side frame 5 is controlled by a lead screw 6, so that the adjustment frame can be freely transformed.

[0034] As Figure 7 shown in the figure, the upper frame includes: support rods I 11, convex shafts 12, sliding shafts 13, and an adjustment frame; the convex shafts 12 are fixedly installed on the angle frames 4 in the adjustment frame of the upper frame; one end of the sliding shaft 13 is fixedly installed on the angle frame 4 in the adjustment frame of the upper frame, and the other end is slidably installed on the side frame 5. The sliding shaft 13 plays a role in supporting the side frame 5 and facilitates the telescopic operation of the side frame 5; the angle frame 4 in the adjustment frame of the upper frame is connected to the angle frame 4 in the adjustment frame of the lower frame through the support rods I 11, so that the adjustment frame in the upper frame and the adjustment frame in the lower frame perform synchronous operations.

[0035] As Figure 6 、 Figures 9-12As shown in the figure, the shearing mechanism includes: backing plate I 7, backing plate II 8, guide rail I 9, guide rail II 10, slide rail I 18, slide rail II 19, power assembly backing plate 20, guide rail slider 21, gear 22, power shaft 23, power assembly 24, cutter holder 25, circular cutter 26, connecting block 34; backing plate I 7 is fixedly connected to the U-shaped frame 14 sleeved on the middle frame of the lower frame and adjusting the border 5, backing plate II 8 is fixedly connected to the U-shaped frame 14 sleeved on the other border 5 of the middle frame of the lower frame and adjusting the border 5. At the same time, backing plate I 7 and backing plate II 8 are slidably connected, and both backing plate I 7 and backing plate II 8 provide support for the shearing operation of the circular cutter 26; guide rail I 9 is fixedly connected to backing plate I 7, guide rail II 10 is fixedly connected to backing plate II 8, and guide rail I 9 and guide rail II 10 provide moving guidance for the metal sheet to be cut, so that the metal sheet moves along the directions of guide rail I 9 and guide rail II 10 and moves to the specified position; slide rail I 18 is fixedly connected to the U-shaped frame 14 sleeved on the middle frame of the upper frame and adjusting the border 5, slide rail II 19 is fixedly connected to the U-shaped frame 14 sleeved on the other border 5 of the middle frame of the upper frame and adjusting the border 5. At the same time, slide rail I 18 and slide rail II 19 are slidably connected to form a telescopic slide rail, and racks capable of meshing with gear 22 are provided inside both slide rail I 18 and slide rail II 19, and these two racks are arranged one above the other; a guide rail slider 21 is fixedly installed under the power assembly backing plate 20. At the same time, a power assembly 24 is provided on the power assembly backing plate 20. The power assembly 24 provides power for the power shaft 23 to rotate the power shaft 23. The power shaft 23 passes through the power assembly backing plate 20 and the guide rail slider 21 and is fixedly installed with the gear 22. The gear 22 is arranged in the groove provided in the middle of the guide rail slider 21; the lower end of the guide rail slider 21 is fixedly connected to the connecting block 34; the lower end of the connecting block 34 is fixedly connected to the cutter holder 25; cylinders are provided on both sides of the cutter holder 25, and the sides of the cylinders are fixedly installed on the sides of the connecting block 34; the circular cutter 26 is rotatably installed at the middle position of the cutter holder 25; at the same time, the power assembly backing plate 20 and the guide rail slider 21 are respectively slidably connected to the slide rail I 18. When the power assembly backing plate 20 and the guide rail slider 21 move to the position of the slide rail II 19, the power assembly backing plate 20 and the guide rail slider 21 are respectively slidably connected to the slide rail II 19.

[0036] As Figures 8-9As shown in the figure, the shearing and positioning mechanism includes: a U-shaped frame 14, a friction clamping plate I 15, a tightening screw 16, and a support rod II 17; there are two shearing and positioning mechanisms arranged in mirror symmetry, and each shearing and positioning mechanism contains two U-shaped frames 14, friction clamping plates I 15, and tightening screws 16; the friction clamping plate I 15 is slidably installed inside the U-shaped frame 14, and at the same time, the friction clamping plate I 15 is rotatably connected to the tightening screw 16, and the tightening screw 16 is threadedly installed in the threaded hole provided in the baffle at one end of the U-shaped frame 14; the two U-shaped frames 14 are connected by a support rod II 17 to enable the two U-shaped frames 14 to perform synchronous operations; the U-shaped frame 14 is sleeved on the frame 5, and by turning the tightening screw 16, the friction clamping plate I 15 is driven to move, and then the friction clamping plate I 15 contacts the frame 5, so as to fix the U-shaped frame 14 at a specified position on the frame 5.

[0037] As Figures 13-14 As shown in the figure, the plate fixing mechanism includes: a scissors frame 27, a collar I 28, a clamping plate frame 29, a friction clamping plate II 30, a collar II 31, a set screw 32, and a connecting plate 33; sliding grooves are provided on the four side rods of the scissors frame 27, and the sliding grooves are slidably connected to the convex shafts 12; the collar I 28 is sleeved on the side rod of the scissors frame 27 and is slidably connected to the side rod of the scissors frame 27. Threaded holes are provided on both sides of the collar I 28, and set screws 32 are installed in the holes. By turning the set screws 32, the collar I 28 is fixed at a specified position; a sliding rod is provided under the collar I 28 and is slidably connected to the connecting plate 33; the connecting plate 33 is fixedly installed on the clamping plate frame 29; a friction clamping plate II 30 is slidably installed inside the clamping plate frame 29. A cylinder for pushing the friction clamping plate II 30 to move inside the clamping plate frame 29 is fixedly installed at the upper end of the friction clamping plate II 30, and the side of the cylinder is fixedly connected to the baffle provided on the clamping plate frame 29; at the same time, another cylinder for pushing the clamping plate frame 29 to move horizontally is installed on the side of the baffle provided on the clamping plate frame 29, and this cylinder is fixedly installed with the baffle provided under the collar II 31; the collar II 31 is sleeved on the side rod of the scissors frame 27 and is slidably connected to the side rod of the scissors frame 27. Threaded holes are provided in the friction clamping plates II 30, and set screws 32 are installed in the holes. By turning the set screws 32, the friction clamping plates II 30 are fixed at a specified position; the collar I 28, the clamping plate frame 29, the friction clamping plate II 30, the collar II 31, and the connecting plate 33 form a clamping assembly, and there are four such clamping assemblies, and one such clamping assembly is installed on each of the four plate rods of the scissors frame 27.

[0038] Working principle: When it is necessary to shear metal sheets, the device is used. First, according to the metal sheet to be cut, the screw rod 6 is rotated to drive the frame 5 to expand and contract, and then the corner frame 4 is driven to move, so that the two adjustment frames are moved to the specified size, and the convex shaft 12 on the corner frame 4 in the upper adjustment frame drives the scissors frame 27 to rotate to make it conform to the size of the adjustment frame; then, according to the size of the metal sheet, the collar Ⅰ28 and the collar Ⅱ31 are moved to the specified position on the side rod of the scissors frame 27, and then the top screw 32 is screwed to fix the collar Ⅰ28 and the collar Ⅱ31 on the side rod of the scissors frame 27; at this time, the cylinder installed under the collar Ⅱ31 in the two clamping assemblies away from the metal sheet position pushes the clamping plate frame 29 to move, and then drives the friction clamping plate Ⅱ30 and the connecting plate 33 to move, and then the sliding rod provided under the collar Ⅰ28 slides on the connecting plate 33, so that the clamping plate frame 29 and the friction clamping plate Ⅱ30 move to the specified position; Then, the metal sheet is moved to the guide rails Ⅰ9 and Ⅱ10 by an external handling device, and then the metal sheet is pushed to move until the front edge of the metal sheet enters the clamping plate frame 29 and presses against the clamping plate frame 29. At this time, the cylinder provided on the friction clamping plate Ⅱ30 in the two clamping assemblies far away from the metal sheet position pushes the friction clamping plate Ⅱ30 to move downward, and then the metal sheet is clamped between the clamping plate frame 29 and the friction clamping plate Ⅱ30. Then the cylinder installed under the collar II 31 in the other two clamping assemblies pushes the clamping plate frame 29 to move, and then drives the friction clamping plate II 30 and the connecting plate 33 to move, and then the sliding rod provided under the collar I 28 slides on the connecting plate 33, so that the clamping plate frame 29 and the friction clamping plate II 30 move to the specified position, at this time, the other two corners of the metal plate enter the two clamping plate frames 29 and support them, and then the cylinder provided on the friction clamping plate II 30 in the two clamping assemblies pushes the friction clamping plate II 30 to move downward, and then clamps the metal plate between the clamping plate frame 29 and the friction clamping plate II 30, and at this time, the metal plate is fixed by these four clamping assemblies; At this time, the moving rod II 17 drives the shearing and positioning mechanism to move to the designated position. At the same time, the movement of the shearing and positioning mechanism drives the shearing mechanism to move to the position where the metal sheet needs to be sheared. At this time, the power assembly 24 drives the power shaft 23 to rotate, and then drives the gear 22 to rotate, so that the gear 22 moves on the racks provided inside the slide rail I 18 and the slide rail II 19, and then drives the guide rail slider 21, the cutter holder 25, the connecting block 34 and the power assembly backing plate 20 to move along the directions of the slide rail I 18 and the slide rail II 19; before the movement, the cylinders provided on both sides of the cutter holder 25 push the cutter holder 25 downward, and then drive the circular cutter 26 downward, so that the circular cutter 26 contacts the metal sheet and tightly presses the metal sheet. Then, the connecting block 34 drives the cutter holder 25 and the circular cutter 26 to move, so as to shear the metal sheet. After the shearing is completed, the cylinders provided on both sides of the cutter holder 25 drive the cutter holder 25 to move upward, so that the circular cutter 26 is separated from the metal sheet. Then, the friction clamping plates II 30 in the four clamping assemblies are separated from the metal sheet driven by the cylinders. Then, the clamping plate frame 29 is separated from the metal sheet driven by the cylinders; At this time, the external handling device moves another metal sheet onto the guide rail I 9 and the guide rail II 10. At this time, this metal sheet pushes the sheared metal sheet to move, and the sheared metal sheet slides out of the equipment through the gap of the equipment and onto the steel wire rope, and then slides out of the equipment from the steel wire rope; then the next metal sheet is sheared; Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient automatic metal sheet shearing device, comprising a lower frame, an upper frame, a shearing mechanism, a shearing positioning mechanism and a sheet fixing mechanism; characterized in that: The lower frame comprises four legs (1), two telescopic connecting rods (2) fixedly connected to the legs (1), one high and one low, a wire coil (3) fixedly mounted on one of the telescopic connecting rods (2), a screw rod (6) for adjusting the size of the adjustment frame, and an adjustment frame; The shearing mechanism comprises a slide rail I (18) and a slide rail II (19) which are slidably connected to each other to form a retractable slide rail, a power assembly pad (20) and a guide rail slider (21) which are fixedly connected to each other, a gear (22) arranged in a middle groove of the guide rail slider (21), a power shaft (23) which passes through the power assembly pad (20) and the guide rail slider (21) and is fixedly installed with the gear (22), a power assembly (24) which is arranged on the power assembly pad (20) and provides power to the power shaft (23), a connecting block (34) which is fixedly connected to the guide rail slider (21), a cylinder cutter frame (25) which is fixedly connected to the connecting block (34) and provided with two sides thereof, and a circular cutter (26) which is rotatably installed in the middle position of the cutter frame (25); The plate fixing mechanism comprises a scissor frame (27) with sliding grooves on four side bars, a ring I (28) and a ring II (31) which are sleeved on the side bars of the scissor frame (27) and slidably connected to the side bars of the scissor frame (27), a top screw (32) fixing the ring I (28) and the ring II (31), a connecting plate (33) slidably connected to a sliding rod provided under the ring I (28), a clamping plate frame (29) fixedly mounted on the connecting plate (33), and a friction clamping plate II (30) slidably mounted inside the clamping plate frame (29) and equipped with a cylinder.

2. According to claim 1, a high-efficiency automatic metal sheet shearing device is characterized in that the adjustment frame includes a telescopic mechanism frame (5) and four corner frames (4) that together with the four frames (5) form a frame; at the same time, there are two adjustment frames, one located in the lower frame and the other located in the upper frame.

3. According to claim 2, a high-efficiency automatic metal sheet shearing device is characterized in that the upper frame includes a support rod I (11) connecting the corner frame (4) in the adjusting frame in the upper frame and the corner frame (4) in the adjusting frame in the lower frame, a convex shaft (12) fixedly installed on the corner frame (4) in the adjusting frame in the upper frame, and a sliding shaft (13) fixedly installed on the corner frame (4) in the adjusting frame in the upper frame to support the frame (5).

4. According to claim 1, a high-efficiency automatic shearing device for metal sheets is characterized in that the shearing positioning mechanism includes two U-shaped frames (14) connected by a support rod II (17), a friction clamp I (15) slidably installed inside the U-shaped frame (14), and a tightening screw (16) threadedly installed in a threaded hole provided in a baffle at one end of the U-shaped frame (14) to drive the friction clamp I (15) to move; at the same time, the shearing positioning mechanism has two arranged in a mirror-symmetrical manner.

5. According to claim 4, a high-efficiency automatic metal sheet shearing device is characterized in that the shearing mechanism also includes pads I (7) and pads II (8) which are fixedly connected to different U-shaped frames (14) and slidably connected to each other to provide support for the circular cutter (26) to perform shearing operations, and guide rails I (9) and guide rails II (10) which are fixedly connected to pads I (7) and pads II (8) respectively to provide moving guides for the metal sheets to be cut.

6. According to claim 1, a high-efficiency automatic shearing device for metal sheets is characterized in that another cylinder for pushing the clamping frame (29) to move horizontally is installed on the side of the baffle provided on the clamping frame (29), and the cylinder is fixedly installed with the baffle provided under the ring II (31); the ring I (28), the clamping frame (29), the friction clamp II (30), the ring II (31), and the connecting plate (33) are a clamping assembly, and there are four of these clamping assemblies, and one such clamping assembly is installed on each of the four plate rods of the scissors frame (27).

7. A high-efficiency automatic metal sheet shearing device according to claim 1, characterized in that the slide rail I (18) is fixedly connected to the U-shaped frame (14) on the frame (5) of the adjusting frame in the upper frame, and the slide rail II (19) is fixedly connected to the U-shaped frame (14) on the other frame (5) of the adjusting frame in the upper frame, and the slide rail I (18) and the slide rail II (19) are both provided with racks that can mesh with the gear (22), and the two racks are arranged one above and one below.

8. According to claim 1, a high-efficiency automatic metal sheet shearing device is characterized in that there are multiple wire rolls (3), a wire rope is wound on the wire roll (3), and the rope end of the wire is put on another telescopic connecting rod (2). An inclined slope composed of multiple wire ropes is formed between the two telescopic connecting rods (2). The cut metal sheet falls onto this inclined plane, and the soft characteristics of the rope are used to provide a buffer for the metal sheet.

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