Steel bar shearing and bending device

Abstract

The steel bar shearing and bending device comprises a bottom plate, four supporting legs are fixedly mounted at the bottom of the bottom plate, two driving rollers are rotatably mounted at the top of the bottom plate, a cutter groove is formed in the top of the bottom plate, a mounting frame and two limiting plates are fixedly mounted at the top of the bottom plate, and a cutter is slidably mounted in an inner cavity of the mounting frame; an arc-shaped groove is formed in the top of the bottom plate, a first bending roller is slidably mounted on the inner surface of the arc-shaped groove, and a second bending roller is fixedly mounted on the top of the bottom plate; the fixing mechanism is used for fixing the reinforcing steel bars when the reinforcing steel bars are sheared; the fixing mechanism comprises a mounting frame; an output shaft of a third motor drives a threaded rod to rotate to be matched with limiting of two limiting rods so that a top plate can move up and down, the top plate needs to drive a fixing plate to move downwards and press the top of the steel bar before the steel bar is sheared off, and the situation that the steel bar jumps up due to uneven stress during steel bar shearing, and workers are accidentally injured is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar shearing and bending, in particular to a steel bar shearing and bending device. Background Art

[0002] The steel bar shearing and bending device belongs to the field of steel bar processing technology. It usually includes a support frame, a main machine mechanism, a discharge mechanism, and an angle adjustment mechanism. The main machine mechanism includes a main frame and a working component, and the working component can shear and bend the steel bar. Through this device, the steel bar can be automatically or manually sheared and bent to meet the requirements of different construction projects for the shape and size of the steel bar.

[0003] After searching, the patent document with publication number CN210907826U discloses a steel bar shearing and bending device, which includes a steel bar bending device, a workbench is fixedly connected to the top of the right side of the steel bar bending device, a cutting table and a second connecting plate are fixedly connected to the front and rear sides of the left side of the top of the workbench respectively, the top of the second connecting plate is fixedly connected to an outer shell, the bottom of the outer shell is fixedly connected to a hydraulic telescopic rod, and the bottom of the hydraulic telescopic rod is fixedly connected to a cutter.

[0004] The steel bar shearing and bending device solves the problem that the steel bars need to be cut by manpower after being bent by the existing bending machine, which reduces work efficiency and increases work intensity. In actual use, the cutter will enter the knife groove to cut the steel bars, but this will cause the ends of the steel bars to bend and warp, making it inconvenient for the staff to collect the sheared steel bars later.

[0005] Therefore, a steel bar shearing and bending device is proposed to solve the above problems. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art and solve the problem of steel bar bending and warping when shearing the steel bar, the present invention proposes a steel bar shearing and bending device.

[0007] A steel bar shearing and bending device comprises a bottom plate, four supporting legs are fixedly installed at the bottom of the bottom plate, two driving rollers are rotatably installed at the top of the bottom plate, a knife groove is opened at the top of the bottom plate, a mounting frame and two limit plates are fixedly installed at the top of the bottom plate, a cutting knife is slidably installed in the inner cavity of the mounting frame, an arc groove is opened at the top of the bottom plate, a first bending roller is slidably installed on the inner surface of the arc groove, and a second bending roller is fixedly installed at the top of the bottom plate; Also included is a fixing mechanism for fixing the steel bar when shearing the steel bar; The fixing mechanism includes a mounting frame, which is fixedly mounted on the top of the base plate. Two seventh grooves are provided on the top of the mounting frame. Limit rods are slidably mounted on the inner surfaces of the two seventh grooves. A top plate is slidably mounted on the bottoms of the two limit rods. A third motor is fixedly mounted on the top of the mounting frame. A threaded rod is fixedly connected to the output shaft of the third motor. The top plate is threadedly connected to the threaded rod, and three fixing plates are fixedly mounted on the bottom of the top plate.

[0008] Preferably, a third groove and two first grooves are provided at the bottom of the base plate, a connecting shaft is slidably installed on the inner surface of the first groove, one end of the connecting shaft is fixedly connected to the second pulley, a first slider is slidably installed on the inner surface of the third groove, the bottom of the first slider is rotatably connected to the first pulley, the third pulley is rotatably installed on the bottom, the two second pulleys and the first pulley and the third pulley are jointly driven by belts, the bottom of the first pulley is fixedly connected to the first motor, the bottom of the first motor is fixedly connected to an L-shaped card plate, one side of the L-shaped card plate is fixedly connected to the first electric telescopic plate, and the first electric telescopic plate is fixedly installed on the bottom of the base plate.

[0009] Preferably, a fifth groove is provided on the top of the connecting shaft, a first connecting block is movably installed on the inner surface of the fifth groove, a driving roller is fixedly connected to the top of the first connecting block, a second groove is provided on the inner surface of the first groove, a sixth groove is provided on the outer surface of the connecting shaft, a second electric telescopic rod is fixedly installed in the inner cavity of the second groove, and two output ends of the second electric telescopic rod are rotatably installed on the inner surfaces of the two sixth grooves respectively.

[0010] Preferably, a rotating block is rotatably installed at the bottom of the base plate, a cylinder is fixedly connected to one side of the rotating block, a second connecting block is fixedly connected to the output end of the cylinder, and the first bending roller is fixedly installed on one side of the second connecting block.

[0011] Preferably, two third electric telescopic rods are fixedly installed on the bottom of the installation frame, and the bottoms of the two third electric telescopic rods are commonly fixedly connected with a connecting plate, the cutter is fixedly installed on the bottom of the connecting plate, the cutter is located at the top of the knife groove, and two connecting columns are fixedly installed on one side of the installation frame.

[0012] Preferably, two pull plates are fixedly installed on the bottom of the top plate, two air bags are fixedly installed on the bottom of the mounting frame, the pull plates are fixedly installed on the bottom of the air bags, the bottom of the air bags is fixedly connected to an air pipe, and the connecting column is fixedly installed on the outer surface of the air pipe.

[0013] Preferably, a fourth groove is opened on one side of the base plate, an eighth groove is opened on the inner surface of the fourth groove, a transmission shaft is rotatably installed on the inner surface of the eighth groove, one end of the transmission shaft is fixedly connected to a fourth motor, and the fourth motor is fixedly installed on one side of the base plate.

[0014] Preferably, a third connecting block is rotatably installed on the inner surface of the fourth groove, the third connecting block is fixedly installed on the outer surface of the transmission shaft, one side of the third connecting block is fixedly connected to a fourth electric telescopic rod, the output end of the fourth electric telescopic rod is fixedly connected to a connecting frame, and one end of the connecting frame is fixedly connected to a baffle.

[0015] The present invention is beneficial in that: 1. The present invention enables the top plate to move up and down by rotating the threaded rod with the output shaft of the third motor in cooperation with the limiting of the two limiting rods. Before cutting the steel bars, the top plate needs to move downward with the fixed plate and press on the top of the steel bars to avoid the steel bars jumping up due to uneven force when shearing the steel bars, thereby accidentally injuring the workers.

[0016] 2. The present invention places the steel bar between the two limit plates first, and then adjusts the distance between the two connecting shafts according to the diameter of the steel bar by lengthening and shortening the second electric telescopic rod, so that the outer surfaces of the two driving rollers are in close contact with the steel bar. During the adjustment process, the first electric telescopic plate is first extended to stretch the belt. After the distance between the two driving rollers is adjusted, the first electric telescopic plate is contracted to tighten the belt. The two second pulleys can rotate in opposite directions in conjunction with the third pulley. The second connecting block can slide along the arc groove by extending the output end of the cylinder. The second connecting block slides on the inner surface of the arc groove with the first bending roller. At the same time, the first bending roller moves in a circle around the second bending roller. The steel bar is between the first bending roller and the second bending roller. This can achieve the bending of the steel bar.

[0017] 3. The present invention can adjust the position of the cutter by extending and shortening the two third electric telescopic rods, and control the cutter to move downward to the inner cavity of the knife groove, so as to achieve the effect of shearing the steel bars. The pull plate moves up and down with the top plate, so that the airbag cavity can be inlet and outlet, and the air pipe can be used to blow air into the inner cavity of the knife groove, thereby achieving the purpose of cleaning the debris in the inner cavity of the knife groove. The transmission shaft is rotated by the output shaft of the fourth motor, and the position of the baffle can be adjusted by extending and shortening the fourth electric telescopic rod. By adjusting the baffle, the staff can control the length of the cut steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 A schematic diagram of a bottom connection structure of a bottom plate according to an embodiment of the present invention; Figure 3 A schematic diagram of a bottom plate top connection structure according to an embodiment of the present invention; Figure 4 A cross-sectional view of a first groove according to an embodiment of the present invention; Figure 5 A schematic diagram of a mounting frame connection structure according to an embodiment of the present invention; Figure 6 A schematic diagram of the fixing mechanism structure of an embodiment of the present invention; Figure 7 The figure is a schematic diagram of a baffle driving structure according to an embodiment of the present invention.

[0020] In the figure: 1, bottom plate; 101, supporting leg; 11, first groove; 111, second groove; 12, third groove; 13, arc groove; 14, fourth groove; 15, knife groove; 16, limit plate; 2, first electric telescopic plate; 21, L-shaped card plate; 22, first motor; 23, first pulley; 231, second pulley; 232, belt; 233, third pulley; 24, first slider; 25, connecting shaft; 251, fifth groove; 252, sixth groove; 253, second electric telescopic rod; 26, first connecting block; 27, driving roller; 3, rotating Block; 31, cylinder; 32, second connecting block; 33, first bending roller; 34, second bending roller; 4, mounting frame; 41, third electric telescopic rod; 42, connecting plate; 43, cutter; 44, connecting column; 5, mounting frame; 51, seventh groove; 52, limit rod; 53, top plate; 54, third motor; 55, threaded rod; 56, fixing plate; 57, pull plate; 58, airbag; 59, air pipe; 61, eighth groove; 62, transmission shaft; 63, fourth motor; 64, third connecting block; 65, fourth electric telescopic rod; 66, connecting frame; 67, baffle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 7As shown, a steel bar shearing and bending device comprises a bottom plate 1, four supporting legs 101 are fixedly installed at the bottom of the bottom plate 1, two driving rollers 27 are rotatably installed at the top of the bottom plate 1, a knife groove 15 is opened at the top of the bottom plate 1, a mounting frame 4 and two limit plates 16 are fixedly installed at the top of the bottom plate 1, a cutting knife 43 is slidably installed in the inner cavity of the mounting frame 4, an arc groove 13 is opened at the top of the bottom plate 1, a first bending roller 33 is slidably installed on the inner surface of the arc groove 13, and a second bending roller 34 is fixedly installed on the top of the bottom plate 1; and a fixing mechanism is also included for The steel bars are fixed when being cut; the fixing mechanism comprises a mounting frame 5, the mounting frame 5 is fixedly mounted on the top of the base plate 1, two seventh grooves 51 are provided on the top of the mounting frame 5, limiting rods 52 are slidably mounted on the inner surfaces of the two seventh grooves 51, a top plate 53 is slidably mounted on the bottoms of the two limiting rods 52, a third motor 54 is fixedly mounted on the top of the mounting frame 5, a threaded rod 55 is fixedly connected to the output shaft of the third motor 54, the top plate 53 is threadedly connected to the threaded rod 55, and three fixing plates 56 are fixedly mounted on the bottom of the top plate 53.

[0023] In the process of shearing steel bars, the long length of the steel bars and uneven force will cause the steel bars to warp, and the cut steel bars are easy to fall off, which makes it inconvenient for the staff to collect the cut steel bars later.

[0024] When the present invention is in use, the steel bar is first placed between the two limit plates 16, and then the two driving rollers 27 rotate in opposite directions to rub against the outer surface of the steel bar, so as to drive the steel bar to move between the two limit plates 16. After the steel bar is placed, the first bending roller 33 is made to slide along the arc groove 13, and the sliding of the first bending roller 33 also performs a circular motion with the second bending roller 34 as the center. At this time, the steel bar is between the first bending roller 33 and the second bending roller 34. As the first bending roller 33 moves, one side of the steel bar is close to the second bending roller 34 and is bent. After the steel bar is bent, the output shaft of the third motor 54 is rotated with the threaded rod 55, and the two limit rods 52 slide on the inner surface of the seventh groove 51 to enable the top plate 53 to move downward. At the same time, the top plate 53 moves downward with the three fixing plates 56 and is close to the steel bar, so as to achieve the purpose of fixing the steel bar in multiple places, and then the steel bar is squeezed downward by the cutting knife 43 to achieve shearing of the steel bar.

[0025] Further, such as Figure 2As shown, a third groove 12 and two first grooves 11 are provided at the bottom of the base plate 1, a connecting shaft 25 is slidably installed on the inner surface of the first groove 11, one end of the connecting shaft 25 is fixedly connected to a second pulley 231, a first slider 24 is slidably installed on the inner surface of the third groove 12, the first slider 24 is rotatably connected to the bottom of the first pulley 23, a third pulley 233 is rotatably installed at the bottom of the 1, the two second pulleys 231 and the first pulley 23 and the third pulley 233 are driven together by a belt 232, a first motor 22 is fixedly connected to the bottom of the first motor 22, an L-shaped card plate 21 is fixedly connected to the bottom of the first motor 22, a first electric telescopic plate 2 is fixedly connected to one side of the L-shaped card plate 21, and the first electric telescopic plate 2 is fixedly installed at the bottom of the base plate 1.

[0026] When the present invention is in use, the first motor 22 output shaft drives the first pulley 23 to rotate, which is then transmitted through the belt 232, and then cooperates with the third pulley 233 to make the two second pulleys 231 rotate in opposite directions. The distance between the two second pulleys 231 can be adjusted. When it is necessary to adjust the distance between the two second pulleys 231, the first electric telescopic plate 2 is first extended to make the belt 232 in a relaxed state, and then the two second pulleys 231 are moved, and then the first electric telescopic plate 2 is used to tighten the belt 232.

[0027] Further, such as Figure 3 and Figure 4 As shown, a fifth groove 251 is provided on the top of the connecting shaft 25, a first connecting block 26 is movably installed on the inner surface of the fifth groove 251, a driving roller 27 is fixedly connected to the top of the first connecting block 26, a second groove 111 is provided on the inner surface of the first groove 11, a sixth groove 252 is provided on the outer surface of the connecting shaft 25, a second electric telescopic rod 253 is fixedly installed in the inner cavity of the second groove 111, and two output ends of the second electric telescopic rod 253 are rotatably installed on the inner surfaces of the two sixth grooves 252 respectively.

[0028] When the present invention is in use, the distance between the two connecting shafts 25 can be adjusted by extending and shortening the two ends of the second electric telescopic rod 253, and the two second pulleys 231 move with the connecting shaft 25. When the second pulleys 231 rotate, the driving roller 27 can rotate with the connecting shaft 25 by connecting the connecting shaft 25 with the first connecting block 26.

[0029] Further, such as Figure 2 and Figure 3 As shown, a rotating block 3 is rotatably installed at the bottom of the base plate 1, a cylinder 31 is fixedly connected to one side of the rotating block 3, a second connecting block 32 is fixedly connected to the output end of the cylinder 31, and the first bending roller 33 is fixedly installed on one side of the second connecting block 32.

[0030] When the present invention is in use, the position of the second connecting block 32 can be adjusted by extending or shortening the output shaft of the cylinder 31, and the second connecting block 32 can slide along the arc groove 13 in cooperation with the first bending roller 33, thereby achieving the purpose of making the first bending roller 33 perform a circular motion with the second bending roller 34 as the center.

[0031] Further, such as Figure 5 As shown, two third electric telescopic rods 41 are fixedly installed at the bottom of the installation frame 4, and a connecting plate 42 is fixedly connected to the bottom of the two third electric telescopic rods 41. The cutter 43 is fixedly installed at the bottom of the connecting plate 42, and the cutter 43 is located at the top of the knife groove 15. Two connecting columns 44 are fixedly installed on one side of the installation frame 4.

[0032] When the present invention is in use, the two third electric telescopic rods 41 are extended to allow the connecting plate 42 to slide with the cutter 43. When the steel bar is sheared, the cutter 43 is inserted into the knife groove 15 to cut the steel bar.

[0033] Further, such as Figure 6 As shown, two pull plates 57 are fixedly installed on the bottom of the top plate 53, two air bags 58 are fixedly installed on the bottom of the mounting frame 5, the pull plates 57 are fixedly installed on the bottom of the air bags 58, an air pipe 59 is fixedly connected to the bottom of the air bags 58, and the connecting column 44 is fixedly installed on the outer surface of the air pipe 59.

[0034] When the present invention is in use, since debris is generated during the steel bar cutting process, in order to prevent the debris from filling the knife groove 15, the debris in the knife groove 15 needs to be cleaned. When in use, the pull plate 57 moves up and down with the top plate 53. When the pull plate 57 moves downward, it will stretch the airbag 58. At this time, the airbag 58 inhales air through the air pipe 59. After the steel bar is cut, the top plate 53 will move upward. At this time, the pull plate 57 squeezes the bottom of the airbag 58. The air in the inner cavity of the airbag 58 is discharged through the air pipe 59 and blown into the knife groove 15, blowing out the iron filings in the knife groove 15, so that the inner cavity of the knife groove 15 remains clean. The air pipe 59 can be fixed by two connecting columns 44 so that the air outlet direction of the air pipe 59 is always facing the knife groove 15.

[0035] Further, such as Figure 7 As shown, a fourth groove 14 is provided on one side of the bottom plate 1, an eighth groove 61 is provided on the inner surface of the fourth groove 14, a transmission shaft 62 is rotatably mounted on the inner surface of the eighth groove 61, one end of the transmission shaft 62 is fixedly connected to a fourth motor 63, and the fourth motor 63 is fixedly mounted on one side of the bottom plate 1; A third connecting block 64 is rotatably mounted on the inner surface of the fourth groove 14, and the third connecting block 64 is fixedly mounted on the outer surface of the transmission shaft 62. A fourth electric telescopic rod 65 is fixedly connected to one side of the third connecting block 64, and a connecting frame 66 is fixedly connected to the output end of the fourth electric telescopic rod 65, and a baffle 67 is fixedly connected to one end of the connecting frame 66.

[0036] When the present invention is in use, the output shaft of the fourth motor 63 drives the transmission shaft 62 to rotate, and the transmission shaft 62 drives the third connecting block 64 to rotate on the inner surface of the fourth groove 14, so that the baffle 67 can be moved away from the bottom plate 1. When placing steel bars, the length of the steel bars can be controlled by the extension and contraction of the fourth electric telescopic rod 65.

[0037] Working principle: first, place the steel bar between the two limit plates 16, and then adjust the distance between the two connecting shafts 25 according to the diameter of the steel bar by extending and shortening the second electric telescopic rod 253, so that the outer surfaces of the two driving rollers 27 are in close contact with the steel bar. During the adjustment process, the first electric telescopic plate 2 is first extended to make the belt 232 in a stretched state. After the distance between the two driving rollers 27 is adjusted, the first electric telescopic plate 2 is contracted to make the belt 232 in a taut state. The two second pulleys 231 can rotate in the opposite direction by cooperating with the third pulley 233. The second connecting block 32 can slide along the arc groove 13 by extending the output end of the cylinder 31. The second connecting block 32 slides on the inner surface of the arc groove 13 with the first bending roller 33. At the same time, the first bending roller 33 moves in a circle around the second bending roller 34. The steel bar is between the first bending roller 33 and the second bending roller 34. This can achieve the bending of the steel bar.

[0038] When in use, the position of the cutter 43 can be adjusted by extending and shortening the two third electric telescopic rods 41, and the cutter 43 is controlled to move downward to the inner cavity of the knife groove 15, so as to achieve the effect of shearing the steel bars. The output shaft of the third motor 54 drives the threaded rod 55 to rotate and cooperate with the two limit rods 52 to limit the top plate 53. Before cutting the steel bars, the top plate 53 needs to move downward with the fixing plate 56 and press it on the top of the steel bars to avoid the steel bars jumping up due to uneven force when shearing the steel bars, thereby accidentally injuring the staff. The pull plate 57 moves up and down with the top plate 53, so that the inner cavity of the airbag 58 can be inlet and outlet, and the inner cavity of the knife groove 15 can be blown in cooperation with the air pipe 59, thereby achieving the purpose of cleaning the debris in the inner cavity of the knife groove 15. The output shaft of the fourth motor 63 drives the transmission shaft 62 to rotate, and the position of the baffle 67 can be adjusted in cooperation with the extension and shortening of the fourth electric telescopic rod 65. The adjustment of the baffle 67 can facilitate the staff to control the length of the cut steel bars.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A steel bar shearing and bending device, comprising a base plate (1), four supporting legs (101) being fixedly mounted on the bottom of the base plate (1), two driving rollers (27) being rotatably mounted on the top of the base plate (1), a knife groove (15) being provided on the top of the base plate (1), a mounting frame (4) and two limit plates (16) being fixedly mounted on the top of the base plate (1), a cutting knife (43) being slidably mounted in the inner cavity of the mounting frame (4), an arc-shaped groove (13) being provided on the top of the base plate (1), a first bending roller (33) being slidably mounted on the inner surface of the arc-shaped groove (13), and a second bending roller (34) being fixedly mounted on the top of the base plate (1); Also included is a fixing mechanism for fixing the steel bar when shearing the steel bar; Features: The fixing mechanism comprises a mounting frame (5), the mounting frame (5) being fixedly mounted on the top of the bottom plate (1), the mounting frame (5) being provided with two seventh grooves (51) on the top, the inner surfaces of the two seventh grooves (51) being slidably mounted with limit rods (52), the bottoms of the two limit rods (52) being slidably mounted with a top plate (53), the top of the mounting frame (5) being fixedly mounted with a third motor (54), the output shaft of the third motor (54) being fixedly connected with a threaded rod (55), the top plate (53) being threadedly connected with the threaded rod (55), and the bottom of the top plate (53) being fixedly mounted with three fixing plates (56).

2. A steel bar shearing and bending device according to claim 1, characterized in that: The bottom of the base plate (1) is provided with a third groove (12) and two first grooves (11); a connecting shaft (25) is slidably mounted on the inner surface of the first groove (11); one end of the connecting shaft (25) is fixedly connected to a second belt pulley (231); a first slider (24) is slidably mounted on the inner surface of the third groove (12); the bottom of the first slider (24) is rotatably connected to a first belt pulley (23); a third belt pulley (233) is rotatably mounted on the bottom of the base plate (1); the two second belt pulleys (231) and the first belt pulley (23) and the third belt pulley (233) are driven together via a belt (232); a first motor (22) is fixedly connected to the bottom of the first motor (22); an L-shaped card plate (21) is fixedly connected to the bottom of the first motor (22); a first electric telescopic plate (2) is fixedly connected to one side of the L-shaped card plate (21); and the first electric telescopic plate (2) is fixedly mounted on the bottom of the base plate (1).

3. A steel bar shearing and bending device according to claim 2, characterized in that: A fifth groove (251) is provided on the top of the connecting shaft (25), a first connecting block (26) is movably mounted on the inner surface of the fifth groove (251), a driving roller (27) is fixedly connected to the top of the first connecting block (26), a second groove (111) is provided on the inner surface of the first groove (11), a sixth groove (252) is provided on the outer surface of the connecting shaft (25), a second electric telescopic rod (253) is fixedly mounted in the inner cavity of the second groove (111), and two output ends of the second electric telescopic rod (253) are rotatably mounted on the inner surfaces of the two sixth grooves (252), respectively.

4. A steel bar shearing and bending device according to claim 3, characterized in that: A rotating block (3) is rotatably mounted at the bottom of the base plate (1); a cylinder (31) is fixedly connected to one side of the rotating block (3); a second connecting block (32) is fixedly connected to the output end of the cylinder (31); and the first bending roller (33) is fixedly mounted on one side of the second connecting block (32).

5. A steel bar shearing and bending device according to claim 4, characterized in that: Two third electric telescopic rods (41) are fixedly mounted on the bottom of the installation frame (4); a connecting plate (42) is fixedly connected to the bottoms of the two third electric telescopic rods (41); the cutter (43) is fixedly mounted on the bottom of the connecting plate (42); the cutter (43) is located at the top of the cutter groove (15); and two connecting columns (44) are fixedly mounted on one side of the installation frame (4).

6. A steel bar shearing and bending device according to claim 5, characterized in that: Two pull plates (57) are fixedly mounted on the bottom of the top plate (53), two air bags (58) are fixedly mounted on the bottom of the mounting frame (5), the pull plates (57) are fixedly mounted on the bottom of the air bags (58), an air pipe (59) is fixedly connected to the bottom of the air bags (58), and the connecting column (44) is fixedly mounted on the outer surface of the air pipe (59).

7. A steel bar shearing and bending device according to claim 6, characterized in that: A fourth groove (14) is provided on one side of the bottom plate (1), an eighth groove (61) is provided on the inner surface of the fourth groove (14), a transmission shaft (62) is rotatably mounted on the inner surface of the eighth groove (61), one end of the transmission shaft (62) is fixedly connected to a fourth motor (63), and the fourth motor (63) is fixedly mounted on one side of the bottom plate (1).

8. A steel bar shearing and bending device according to claim 7, characterized in that: A third connecting block (64) is rotatably mounted on the inner surface of the fourth groove (14); the third connecting block (64) is fixedly mounted on the outer surface of the transmission shaft (62); a fourth electric telescopic rod (65) is fixedly connected to one side of the third connecting block (64); a connecting frame (66) is fixedly connected to the output end of the fourth electric telescopic rod (65); and a baffle (67) is fixedly connected to one end of the connecting frame (66).

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