Novel horizontal cut-off shear device

Abstract

The utility model discloses a novel horizontal breaking shear device which comprises a horizontal rack, a left tool apron, a left shear blade, a right tool apron, a right shear blade, a driving assembly and a linkage assembly. A left bottom plate and a right bottom plate are horizontally and symmetrically arranged on the upper surface of the horizontal rack in a left-right spaced mode, the left tool apron and the right tool apron are horizontally and symmetrically arranged in a V shape in a left-right spaced mode, the left end of the left tool apron is horizontally and rotationally connected with the left bottom plate, and the right end of the left tool apron extends in the front side direction and is in threaded connection with the fixed end of the left shear blade. The right end of the right tool apron is horizontally and rotationally connected with the right bottom plate, and the left end of the right tool apron extends towards the front side and is in threaded connection with the fixed end of the right shear blade; a linkage assembly is arranged between the left tool apron and the right tool apron, and the left tool apron and the right tool apron synchronously and reversely rotate through the linkage assembly. A driving assembly is arranged on the upper surface of the right bottom plate relative to the rear side of the right tool apron, and the right tool apron is driven by the driving assembly to rotate horizontally. The gravity center of equipment is lowered, and the operation stability is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of elevators, specifically to a novel horizontal clamping and shearing device. Background Technology

[0002] As a key piece of equipment in steel rolling production, the cutting shear has evolved from mechanical drive to hydraulic drive, then to electric drive, and is gradually moving towards automation and intelligence. However, existing technologies still have many shortcomings: 1) Vertical cutting shears have a high center of gravity, poor stability, large space occupation, and inconvenient maintenance; 2) Hydraulic drives have high energy consumption, are prone to leakage, and have insufficient response speed; 3) Electric cutting shears have limited shearing force, making it difficult to meet high-strength requirements; 4) Structural designs such as top-cutting and bottom-cutting types each have their shortcomings, with limited functionality and poor adaptability; 5) Insufficient intelligence, low sensor accuracy, and lack of data integration; 6) Prominent safety and environmental issues, high noise levels, and serious material waste. These shortcomings restrict the application of cutting shears in high-efficiency, high-precision rolling production. Therefore, these problems urgently need to be solved. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a new type of horizontal clamping shear device with a compact overall structure, which lowers the center of gravity of the equipment, significantly improves the operational stability, and solves the problems of vibration and insufficient accuracy caused by the high center of gravity of vertical clamping shear equipment.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This utility model provides a novel horizontal shearing device, the innovation of which lies in: including a horizontal frame, a left base plate, a left blade holder, a left shear blade, a right base plate, a right blade holder, a right shear blade, a drive assembly, and a linkage assembly; the horizontal frame is horizontally arranged, and the left and right base plates are symmetrically fixed on its upper surface at left and right intervals; the left and right blade holders have the same structure and are arranged horizontally at left and right intervals in a V-shape; the left blade holder is located on the upper surface of the left base plate, and its left end is horizontally rotatably connected to the left base plate via a pin; its right... The left end extends forward and is screwed to the fixed end of the left shear blade; the right blade holder is located on the upper surface of the right base plate, and its right end is horizontally rotatably connected to the right base plate via a pin, while its left end extends forward and is screwed to the fixed end of the right shear blade; a linkage assembly is also provided between the left and right blade holders, and the linkage assembly enables the left and right blade holders to rotate synchronously in opposite directions; a drive assembly is also provided on the upper surface of the right base plate relative to the rear side of the right blade holder, and the drive assembly drives the right blade holder to rotate horizontally, and the steel billet is sheared by the opposite rotation of the left and right shear blades.

[0005] Preferably, the left and right base plates are the same size, and the distance between them must ensure that neither the left nor the right base plates interfere with the feeding action of the steel billet. Their height must ensure that the left and right shear blades are both on the same horizontal plane as the steel billet during feeding, thereby ensuring that the steel billet can be sheared by the cooperation of the left and right shear blades.

[0006] Preferably, a connecting plate is also included; the left end of the left cutter holder and the right end of the right cutter holder are arranged horizontally and laterally, and a connecting plate is also arranged horizontally between them directly above; the two ends of the connecting plate are respectively coaxially sleeved to the upper ends of the corresponding pins, and do not interfere with the horizontal rotation of the left and right cutter holders, nor affect the feeding action of the steel billet, thereby ensuring the stability of the left and right cutter holders during rotation through the connecting plate.

[0007] Preferably, the right end of the left blade holder and the left end of the right blade holder are arranged horizontally and in a straight line. A symmetrically spaced, vertically inserted, transversely oriented oblong holes I are provided on the front surface of the fixed end of the left blade. A threaded hole I matching each oblong hole I is also vertically inserted and inserted on the front surface of the right end of the left blade holder, allowing for adjustment of the lateral position of the left blade through the oblong holes I. The left blade is then screwed and fixed to the left blade holder through the oblong holes I, the threaded holes I, and the bolts. Similarly, a symmetrically spaced, transversely oriented oblong holes II are provided on the front surface of the fixed end of the right blade. A threaded hole II matching each oblong hole II is also vertically inserted and inserted on the front surface of the left end of the right blade holder, allowing for adjustment of the lateral position of the right blade. The right blade is then screwed and fixed to the right blade holder through the oblong holes II, the threaded holes II, and the bolts.

[0008] Preferably, the linkage assembly includes a left support plate, a right support plate, a connecting rod, a second rotating shaft, and a connector seat; a left support plate is horizontally disposed on the upper surface of the left tool holder near its left end and relative to the front side of the corresponding pin, the angle between the left support plate and the left tool holder is 55°, and its front end extends horizontally out of the left tool holder and rotates horizontally with the left tool holder; a right support plate is horizontally disposed on the upper surface of the right tool holder near its right end and relative to the rear side of the corresponding pin, the angle between the right support plate and the right tool holder is 55°, and its rear end extends horizontally out of the right tool holder and rotates horizontally with the right tool holder; a left support plate is horizontally disposed on the upper surface of the left support plate near its left ... The upper surface of the right support plate and the end of the connecting plate are respectively provided with horizontal connectors that match the connecting rod. The fixed ends of the two connectors are respectively connected to the corresponding left or right support plate via a second rotating shaft. The insertion ends of the two connectors are horizontally collinear and facing each other, ensuring that the distance between them matches the length of the connecting rod. The connecting rod is horizontally spaced above the connecting plate, and its two ends are coaxially engaged with the insertion ends of the corresponding connectors. Thus, when the right blade holder rotates horizontally, the connecting rod drives the left blade holder to rotate horizontally in the opposite direction synchronously, and the connecting rod ensures the opening between the left and right blades.

[0009] Preferably, the length of the connecting rod is 2000mm, and the opening distance between the left and right shear blades is 420mm, thereby ensuring that the steel billet can pass smoothly during feeding; when the left and right shear blades rotate horizontally to a collinear state, the gap between them is 0.2~1mm, and the allowable error of their horizontality is no greater than 0.5mm / m, and the allowable error of their verticality is no greater than 0.2mm / m.

[0010] Preferably, the driving assembly includes a cylinder and a connecting seat; a connecting seat is also vertically fixed on the right end face of the right tool holder, and the connecting seat is arranged without interfering with the right support plate and is spaced apart above the right base plate; a cylinder is also horizontally and longitudinally arranged on the upper surface of the right base plate relative to the rear side of the connecting seat, the cylinder is spaced apart on the rear side of the right tool holder, and its telescopic end is horizontally and longitudinally forward, and is horizontally hinged to the end of the connecting seat away from the right tool holder, so that the right tool holder is driven to rotate horizontally by the connecting seat under the drive of the cylinder.

[0011] Preferably, the assembly also includes bearing seats, first rotating shafts, and rollers; a roller with an I-shaped cross-section is horizontally arranged on the upper surface of the horizontal frame, near the rear center and between the left and right shear blades. The rollers are spaced apart on the rear sides of the left and right bottom plates, and their internal transverse width is 395mm, thus ensuring the smooth passage of the steel billet; first rotating shafts are horizontally and coaxially symmetrically fixed on the left and right end faces of the rollers, and bearing seats are coaxially arranged on the end of each first rotating shaft away from the roller. Each rotating shaft is rotatably connected to the corresponding bearing seat around its own axis, and each bearing seat is fixedly arranged on the upper surface of the horizontal frame relative to the rear side of the corresponding left or right bottom plate, thus ensuring that the steel billet is lifted and kept in a straight state during feeding by the rollers.

[0012] Preferably, the plane at the upper end of the outer circumference of the roller is located 5-10 mm above the horizontal plane at the lower end of the left shear blade, thereby ensuring that the billet will not be cut due to falling during shearing.

[0013] The beneficial effects of this utility model are:

[0014] (1) The overall structure of this utility model is compact, which lowers the center of gravity of the equipment, significantly improves the operational stability, and solves the problems of vibration and insufficient precision caused by the high center of gravity of the vertical card shearing equipment;

[0015] (2) This utility model adopts cylinder drive, which has fast response speed and precise control, avoiding the disadvantages of high energy consumption and high leakage risk of hydraulic system, and also overcomes the limitation of insufficient shearing force of electric card cutting shear equipment.

[0016] (3) By setting rollers, this utility model can lift the steel billet to keep it in a straight state and effectively reduce the amplitude of left and right vibration, thereby ensuring the cutting accuracy and solving the problem of cut quality caused by steel billet deviation in traditional cut shearing equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a novel horizontal card-cutting shear device according to the present invention.

[0019] Figure 2 for Figure 1 Top view.

[0020] Figure 3 This is a schematic diagram showing the position of the left and right shear blades during cutting.

[0021] Among them, 1-horizontal frame; 2-left base plate; 3-left blade holder; 4-left shear blade; 5-waist-shaped hole I; 6-left support plate; 7-right base plate; 8-right blade holder; 9-right shear blade; 10-waist-shaped hole II; 11-right support plate; 12-connecting rod; 13-bearing seat; 14-roller; 15-first rotating shaft; 16-cylinder; 17-connecting seat; 18-connecting plate. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0023] This utility model discloses a novel horizontal shearing device, comprising a horizontal frame 1, a left base plate 2, a left blade holder 3, a left shear blade 4, a right base plate 7, a right blade holder 8, a right shear blade 9, a drive assembly, and a linkage assembly; the specific structure is as follows: Figures 1-3 As shown, the horizontal frame 1 is horizontally arranged, and a left base plate 2 and a right base plate 7 are symmetrically fixed on its upper surface at left and right intervals. The left cutter holder 3 and the right cutter holder 8 have the same structure and are arranged horizontally at left and right intervals in a V-shape. The left cutter holder 3 is located on the upper surface of the left base plate 2, and its left end is horizontally rotatably connected to the left base plate 2 by a pin. Its right end extends forward and is screwed to the fixed end of the left shear blade 4. The right cutter holder 8 is located on the upper surface of the right base plate 7, and its right end is horizontally rotatably connected to the right base plate 7 by a pin. Its left end extends forward and is screwed to the fixed end of the right shear blade 9. A linkage assembly is also provided between the left cutter holder 3 and the right cutter holder 8, and the linkage assembly enables the left cutter holder 3 and the right cutter holder 8 to rotate synchronously in opposite directions. A drive assembly is also provided on the upper surface of the right base plate 7 relative to the rear side of the right cutter holder 8, and the drive assembly drives the right cutter holder 8 to rotate horizontally, and the steel billet is sheared by the opposite rotation of the left shear blade 4 and the right shear blade 9.

[0024] like Figures 1-3 As shown, the left base plate 2 and the right base plate 7 are the same size, and the distance between them must ensure that the left base plate 2 and the right base plate 7 do not interfere with the feeding action of the steel billet. Their height must ensure that the left shear blade 4 and the right shear blade 9 are both in the same horizontal plane as the steel billet during feeding, so as to ensure that the steel billet can be sheared by the cooperation of the left shear blade 4 and the right shear blade 9.

[0025] like Figures 1-3As shown, the left end of the left cutter holder 3 and the right end of the right cutter holder 8 are arranged horizontally and horizontally, and a connecting plate 18 is provided horizontally between them directly above. The two ends of the connecting plate 18 are respectively coaxially sleeved with the upper ends of the corresponding pins, and do not interfere with the horizontal rotation of the left cutter holder 3 and the right cutter holder 8, nor affect the feeding action of the steel billet. Thus, the connecting plate 18 ensures the stability of the left cutter holder 3 and the right cutter holder 8 during the rotation process.

[0026] like Figures 1-3 As shown, the right end of the left blade holder 3 and the left end of the right blade holder 8 are horizontally aligned. A symmetrically spaced, vertically inserted, oblong holes I5 are provided on the front surface of the fixed end of the left shear blade 4. Furthermore, a threaded hole I, matching the oblong hole I5, is vertically inserted on the front surface of the right end of the left blade holder 3 relative to each oblong hole I5. The lateral position of the left shear blade 4 is adjusted through the oblong holes I5, and the left shear blade is positioned using the combination of the oblong holes I5, the threaded holes I, and the bolts. The blade 4 is screwed and fixed to the left blade holder 3; on the front surface of the fixed end of the right shear blade 9, there are also symmetrically spaced vertical through-holes II10 that are set horizontally, and on the front surface of the left end of the right blade holder 8, there are also threaded holes II that are vertically inserted and fixed to each of the waist-shaped holes II10. The horizontal position of the right shear blade 9 can be adjusted through the waist-shaped holes II10, and the right shear blade 9 is screwed and fixed to the right blade holder 8 through the cooperation of the waist-shaped holes II10, the threaded holes II, and the bolts.

[0027] The linkage assembly of this utility model includes a left support plate 6, a right support plate 11, a connecting rod 12, a second rotating shaft, and a connector seat; as shown... Figures 1-3 As shown, a left support plate 6 is horizontally provided on the upper surface of the left tool holder 3 near its left end and relative to the front side of the corresponding pin. The angle between the left support plate 6 and the left tool holder 3 is 55°, and its front end extends horizontally out of the left tool holder 3 and rotates horizontally with the left tool holder 3. A right support plate 11 is horizontally provided on the upper surface of the right tool holder 8 near its right end and relative to the rear side of the corresponding pin. The angle between the right support plate 11 and the right tool holder 8 is 55°, and its rear end extends horizontally out of the right tool holder 8 and rotates horizontally with the right tool holder 8. On the upper surface of the left support plate 6 near its front end and on the upper surface of the right support plate 11 near its rear end, there are also... A horizontal connector seat is provided to match the connecting rod 12. The fixed ends of the two connector seats are respectively connected to the corresponding left support plate 6 or right support plate 11 via the second rotating shaft. The insertion ends of the two are horizontally collinear and facing each other, and the distance between them is matched with the length of the connecting rod 12. The connecting rod 12 is horizontally spaced above the connecting plate 18, and its two ends are respectively coaxially engaged with the insertion ends of the corresponding connector seats. Thus, when the right blade holder 8 rotates horizontally, the connecting rod 12 drives the left blade holder 3 to rotate horizontally in the opposite direction synchronously. The connecting rod 12 also ensures the opening between the left shear blade 4 and the right shear blade 9.

[0028] The connecting rod 12 is 2000mm long, and the opening distance between the left shear blade 4 and the right shear blade 9 is 420mm, thus ensuring that the steel billet can pass smoothly during feeding. When the left shear blade 4 and the right shear blade 9 rotate horizontally to a collinear state, the gap between them is 0.2~1mm, and the allowable error of their horizontality is no more than 0.5mm / m, and the allowable error of their verticality is no more than 0.2mm / m.

[0029] The drive assembly of this utility model includes a cylinder 16 and a connecting seat 17; as shown in the figure Figures 1-3 As shown, a connecting seat 17 is vertically fixed on the right end face of the right tool holder 8, and the connecting seat 17 and the right support plate 11 are arranged without interference and are spaced apart above the right base plate 7; a cylinder 16 is horizontally and longitudinally arranged on the upper surface of the right base plate 7 relative to the rear side of the connecting seat 17. The cylinder 16 is spaced apart on the rear side of the right tool holder 8, and its extension end is horizontally and longitudinally forward, and is horizontally hinged to the end of the connecting seat 17 away from the right tool holder 8. Thus, under the drive of the cylinder 16, the right tool holder 8 is driven to rotate horizontally through the connecting seat 17.

[0030] This utility model also features a horizontally arranged roller 14 with an I-shaped cross-section on the upper surface of the horizontal frame 1, near the rear center and relative to the position between the left shear blade 4 and the right shear blade 9. Figures 1-3 As shown, rollers 14 are spaced apart on the rear sides of the left base plate 2 and the right base plate 7, and their internal transverse width is 395mm, thus ensuring the smooth passage of the steel billet. First rotating shafts 15 are symmetrically fixed horizontally and coaxially on both ends of the rollers 14, and bearing seats 13 are coaxially mounted on the end of each first rotating shaft 15 away from the rollers 14. Each rotating shaft is rotatably connected to its corresponding bearing seat 13 around its own axial direction, and each bearing seat 13 is fixedly mounted on the upper surface of the horizontal frame 1 relative to the rear side of the corresponding left base plate 2 or right base plate 7, thus ensuring that the steel billet is lifted and kept straight during feeding by the rollers 14. The upper surface of the outer circumference of the rollers 14 is located 5-10mm above the horizontal plane of the lower end face of the left shear blade 4, thus ensuring that the steel billet is not missed during shearing due to sag.

[0031] The working principle of this utility model:

[0032] In normal operation, the left shear blade 4 and the right shear blade 9 maintain an opening distance of 420mm, and the steel billet passes through the left shear blade 4 and the right shear blade 9 for feeding, and the steel billet is lifted and kept straight by the roller 14.

[0033] When a fault in the downstream rolling mill triggers an alarm, the telescopic end of cylinder 16 extends, driving the right shear blade 9 to rotate clockwise with the right cutter holder 8. At the same time, the connecting rod 12 drives the left shear blade 4 to rotate counterclockwise with the left cutter holder 3. Thus, through the coordinated movement of the left shear blade 4 and the right shear blade 9, the steel billet is sheared.

[0034] The beneficial effects of this utility model are:

[0035] (1) The overall structure of this utility model is compact, which lowers the center of gravity of the equipment, significantly improves the operational stability, and solves the problems of vibration and insufficient precision caused by the high center of gravity of the vertical card shearing equipment;

[0036] (2) This utility model adopts cylinder 16 drive, which has fast response speed and precise control, avoids the disadvantages of high energy consumption and high leakage risk of hydraulic system, and also overcomes the limitation of insufficient shearing force of electric card cutting shear.

[0037] (3) By setting the roller 14, this utility model can lift the steel billet to keep it in a straight state and effectively reduce the amplitude of left and right vibration, thereby ensuring the cutting accuracy and solving the problem of cutting quality caused by steel billet deviation in traditional cut-off shearing equipment.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, all modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully recorded in the technical requirements.

Claims

1. A novel horizontal knock-off shearing device, characterized by: The utility model provides a kind of steel billet shearing machine, including horizontal rack, left bottom plate, left tool holder, left shear blade, right bottom plate, right tool holder, right shear blade, driving assembly and linkage assembly;The horizontal rack is horizontally transversely arranged, and left bottom plate and right bottom plate are horizontally symmetrically fixed and arranged at its upper surface with interval left and right;The left tool holder and right tool holder are the same structure, and they are V-shaped and horizontally symmetrically arranged with interval left and right, the left tool holder is located on the upper surface of the left bottom plate, and its left end is connected with the left bottom plate by pin shaft and rotates horizontally, and its right end extends to the front side direction, and is fixed with the fixed end of the left shear blade by screwing;The right tool holder is located on the upper surface of the right bottom plate, and its right end is connected with the right bottom plate by pin shaft and rotates horizontally, and its left end extends to the front side direction, and is fixed with the fixed end of the right shear blade by screwing;Linkage assembly is further arranged between the left tool holder and the right tool holder, and the left tool holder and the right tool holder are synchronously and reversely rotated by the linkage assembly;Driving assembly is further arranged on the upper surface of the right bottom plate relative to the rear side of the right tool holder, and the right tool holder is driven to rotate horizontally by the driving assembly, and the steel billet is sheared by the opposite rotation of the left shear blade and the right shear blade.

2. A new type of horizontal clamp cutting and shearing device according to claim 1, characterized in that: The left bottom plate and the right bottom plate are the same size, and the interval between them ensures that the left bottom plate and the right bottom plate do not interfere with the feeding action of the steel billet, and the height ensures that the left shear blade and the right shear blade are in the same horizontal plane with the steel billet during feeding, thereby ensuring that the left shear blade and the right shear blade can shear the steel billet.

3. A new type of horizontal clamp cutting and shearing device according to claim 1, characterized in that: It further includes a connecting plate, the left end of the left tool holder and the right end of the right tool holder are horizontally and transversely arranged in a straight line, and a connecting plate is horizontally and transversely arranged between the upper part of the two, the two ends of the connecting plate are coaxially connected with the upper end of the corresponding pin shaft, and do not interfere with the horizontal rotation of the left tool holder and the right tool holder, and do not affect the feeding action of the steel billet, thereby ensuring the stability of the left tool holder and the right tool holder during rotation by the connecting plate.

4. A new type of horizontal clamp cutting and shearing device according to claim 1, characterized in that: The right end of the left tool holder and the left end of the right tool holder are horizontally and transversely arranged in a straight line, and a waist-shaped hole I is vertically embedded and penetrates the front surface of the fixed end of the left shear blade with interval up and down, and a threaded hole I matching the waist-shaped hole I is vertically embedded and penetrates the front surface of the right end of the left tool holder relative to the position of each waist-shaped hole I, thereby adjusting the transverse position of the left shear blade through the waist-shaped hole I, and the left shear blade and the left tool holder are fixed by screwing through the cooperation of the waist-shaped hole I, the threaded hole I and the bolt, a waist-shaped hole II is vertically embedded and penetrates the front surface of the fixed end of the right shear blade with interval up and down, and a threaded hole II matching the waist-shaped hole II is vertically embedded and penetrates the front surface of the left end of the right tool holder relative to the position of each waist-shaped hole II, thereby adjusting the transverse position of the right shear blade through the waist-shaped hole II, and the right shear blade and the right tool holder are fixed by screwing through the cooperation of the waist-shaped hole II, the threaded hole II and the bolt.

5. A novel horizontal type break and shear device as claimed in claim 3, wherein: The linkage assembly comprises a left support plate, a right support plate, a connecting rod, a second rotating shaft and a joint seat; a left support plate is horizontally arranged on the upper surface of the left blade seat near the left end and opposite to the front side of the corresponding pin shaft; the included angle between the left support plate and the left blade seat is 55°, and the front end of the left support plate extends out of the left blade seat and rotates horizontally with the left blade seat; a right support plate is horizontally arranged on the upper surface of the right blade seat near the right end and opposite to the rear side of the corresponding pin shaft; the included angle between the right support plate and the right blade seat is 55°, and the rear end of the right support plate extends out of the right blade seat and rotates horizontally with the right blade seat; a joint seat matched with the connecting rod is horizontally arranged on the upper surface of the left support plate near the front end and on the upper surface of the right support plate near the rear end; the fixed ends of the two joint seats are connected with the corresponding left support plate or right support plate through the second rotating shaft; the insertion ends of the two joint seats are horizontally arranged in a straight line and the distance between them is matched with the length of the connecting rod; the connecting rod is horizontally arranged above the connecting plate and coaxially connected with the insertion ends of the corresponding joint seats at both ends, so that the left blade seat is synchronously and reversely horizontally rotated through the connecting rod when the right blade seat is horizontally rotated, and the opening distance between the left blade and the right blade is ensured through the connecting rod.

6. A novel horizontal type break and shear device as claimed in claim 5, wherein: The length of the connecting rod is 2000mm, and the opening distance between the left blade and the right blade is 420mm, so that the billet can smoothly pass when feeding; when the left blade and the right blade are horizontally rotated to a straight line state, the gap between them is 0.2-1mm, and the horizontal error of the two is not more than 0.5mm / m, and the vertical error of the vertical surfaces of the two is not more than 0.2mm / m.

7. A novel horizontal type break and shear device as claimed in claim 5, wherein: The driving assembly comprises a cylinder and a connecting seat; the connecting seat is vertically and fixedly arranged on the right end surface of the right blade seat and is arranged above the right bottom plate without interfering with the right support plate; the cylinder is horizontally and longitudinally arranged on the upper surface of the right bottom plate opposite to the rear side of the connecting seat; the cylinder is arranged on the rear side of the right blade seat and its telescopic end is horizontally and longitudinally arranged forward and is hingedly connected with one end of the connecting seat away from the right blade seat, so that the right blade seat is horizontally rotated through the connecting seat under the driving of the cylinder.

8. A new type of horizontal clamp cutting and shearing device according to claim 1, characterized in that: The bearing seat, the first rotating shaft and the roller are further arranged; the roller with a cross-section in the shape of an I-beam is horizontally and transversely arranged on the upper surface of the horizontal frame at the rear side and opposite to the position between the left blade and the right blade; the roller is arranged above the left bottom plate and the right bottom plate; the internal transverse width of the roller is 395mm, so that the billet can smoothly pass; the first rotating shaft is horizontally and transversely and coaxially and symmetrically fixedly arranged on the left and right end surfaces of the roller; the bearing seat is coaxially arranged on one end of each first rotating shaft away from the roller; each rotating shaft is rotationally connected with the corresponding bearing seat around its own axis; each bearing seat is fixedly arranged on the upper surface of the horizontal frame at the rear side and opposite to the corresponding left bottom plate or right bottom plate, so that the billet is lifted and kept flat through the roller when feeding.

9. A novel horizontal type break and shear device as claimed in claim 8, wherein: The outer circumferential surface of the roller is 5-10 mm above the lower end surface of the left blade, thereby ensuring that the billet is not cut due to falling during cutting.

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