CN211888794U - Steel bar cutting machine - Google Patents

Abstract

The utility model discloses a steel bar cutting machine relates to reinforcing bar processing equipment technical field. The technical key points are as follows: the automatic steel bar shearing machine comprises a workbench, be provided with the base on the workstation, be provided with stationary knife on the base, be provided with movable cutter on the base, be equipped with the driving motor that drive movable cutter removed on the base, form the shearing mouth that is used for shearing the reinforcing bar between movable cutter and the stationary knife, the one end of base is the feed end, the other one end of base is the discharge end, be provided with a supporting bench on the workstation of discharge end one side, be provided with the support frame on the supporting bench, be provided with the baffle along vertical direction on the support frame, be provided with the tight clamping component of reinforcing bar clamp of butt on the baffle. The utility model has the advantages of the cutting precision is high.

Description

Steel bar cutting machine

Technical Field

The utility model belongs to the technical field of steel bar processing equipment technique and specifically relates to a steel bar cutting machine is related to.

Background

The steel bar cutting machine is a tool used for cutting steel bars, has the advantages of full-automatic steel bar cutting machine and semi-automatic steel bar cutting machine, is mainly used for cutting off the steel bars in the production process of the civil air defense door, is equipment essential in the steel bar processing link, and along with the improvement of the production level, the requirement on the main material of the building material of the steel bars is higher and higher, so that the characteristic of the material of the steel bars is improved, and the requirement on the processing of the steel bar processing equipment is higher and higher.

The utility model discloses a steel bar cutting machine in chinese utility model patent with publication number CN207756806, its technical essential is: including the base, set up actuating mechanism on the base, the movable cutter who is connected with actuating mechanism and set up the stationary cutter on the base, form the shearing mouth that is used for shearing the reinforcing bar between movable cutter and the stationary cutter, be provided with the control that is used for controlling the reinforcing bar length of shearing at every turn on the base, the control including rotate install on the base worm, set up on the base and with reinforcing bar length direction parallel first spout, with worm complex worm wheel and set up the baffle on the worm wheel, the worm is parallel with first spout, the worm wheel slides and sets up in first spout, the helical pitch angle of worm is less than the equivalent friction angle of the intertooth space of worm wheel.

The above prior art solution has the following drawbacks: when cutting off the reinforcing bar, because the reinforcing bar one end of wanting the dissection stretches out the cutter outside, the reinforcing bar that stretches out the cutter outside has certain gravity, and the reinforcing bar receives the action of gravity and probably makes the reinforcing bar cut to one side, and the length of cutting off of reinforcing bar also needs workman's eye estimation, and the precision of cutting off when cutting off the reinforcing bar is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a bar cutter, it has the advantage that the precision is high of cutting off.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a steel bar cutting machine, includes the workstation, be provided with the base on the workstation, be provided with stationary knife on the base, be provided with movable cutter on the base, be equipped with the driving motor that the movable cutter of drive removed on the base, form the kerf that is used for shearing the reinforcing bar between movable cutter and the stationary knife, the one end of base is the feed end, the other one end of base is the discharge end, be provided with a supporting bench on the workstation of discharge end one side, be provided with the support frame on the supporting bench, be provided with the baffle along vertical direction on the support frame, be provided with the tight clamping component of reinforcing bar clamp of butt on the baffle.

Through adopting above-mentioned technical scheme, when the cutter cuts off the reinforcing bar, the base feed end that sets up on the workstation sends the reinforcing bar to the movable cutter of cutter and the fixed cutter between form be used for shearing the shearing mouth of reinforcing bar, the reinforcing bar butt that needs to cut off is on the baffle that cutter discharge end one side set up, then the clamping component who sets up on by the baffle presss from both sides the reinforcing bar tightly, the movable cutter who is equipped with on the drive motor drive base cuts off the reinforcing bar, clamping component presss from both sides the reinforcing bar tightly, reinforcing bar skew or emergence are rocked when preventing to cut off, have the advantage that the precision is high of cutting off.

The present invention may be further configured in a preferred embodiment as: clamping component includes two-way lead screw, first motor, two clamp tight pieces, two nuts, fixed block fixed connection is on the baffle, two-way lead screw level sets up and its both ends are rotated with the fixed block and are connected, two nut and two-way lead screw threaded connection, the pivot of first motor is coaxial rather than fixed connection with two-way lead screw, the casing fixed connection of first motor is on the baffle, two clamp tight piece and be connected two nuts respectively, two clamp the relative one side of tight piece and be the arc setting.

Through adopting above-mentioned technical scheme, when pressing from both sides the reinforcing bar of butt joint on the baffle, at first drive first motor and rotate, drive rather than fixed connection's two-way lead screw and rotate, two-way lead screw rotates on the fixed block and drives rather than threaded connection's nut, the nut drives rather than the tight piece of clamp of being connected and is close to each other, presss from both sides the reinforcing bar tightly, cuts off the reinforcing bar by the cutter, after the reinforcing bar is cut off, drive first motor once more, will press from both sides tight piece and loosen, so circulate, cut off the reinforcing bar into a plurality of sections, improved the precision of cutting off.

The present invention may be further configured in a preferred embodiment as: the two clamping blocks are respectively connected with two supporting rods, the two supporting rods are horizontally arranged, one ends of the two supporting rods are fixedly connected with the clamping blocks, the other ends of the two supporting rods are fixedly connected with nuts, the baffle plate is provided with two through holes which are arranged in parallel along the movement direction of the clamping blocks, and the supporting rods are connected with the through holes in a sliding mode.

Through adopting above-mentioned technical scheme, it removes to drive the nut at two-way lead screw, the nut drives when pressing from both sides tight piece and being connected and being close to each other or keeping away from, the through-hole of seting up has made things convenient for the removal of pressing from both sides tight piece, pass the through-hole of seting up on the baffle in order to prevent the butt thinner reinforcing bar on the baffle, there is certain influence to the disconnected reinforcing bar, therefore, connecting branch on pressing from both sides tight piece, branch is connected with the nut, branch drives the tight piece removal of clamp rather than being connected, press from both sides the reinforcing bar tightly or loosen, make the through-hole setting of seting up at the both sides face of pressing from both sides tight piece.

The present invention may be further configured in a preferred embodiment as: two arc-shaped surfaces opposite to the two clamping blocks are provided with first rubber pads.

Through adopting above-mentioned technical scheme, because the cutter need cut off the reinforcing bar of different thicknesses, moreover after pressing from both sides tight piece and pressing from both sides tight reinforcing bar, the cutter avoids taking place relative slip between reinforcing bar and the tight piece of clamp to the in-process that the reinforcing bar cut off, and the first rubber pad that is equipped with can adapt to the reinforcing bar of different diameters on the one hand, and on the other hand has improved the stability of pressing from both sides tight piece when to the reinforcing bar centre gripping, has further improved the cutting precision of reinforcing bar cutter.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a support platform, including a support table, a base, a spout, a slider, a threaded rod, a fixing base, a supporting table, a supporting frame, a base, a fixing base, a supporting seat, a fixing base, a supporting seat, a threaded rod, a supporting table, a supporting seat, a supporting table, a supporting seat.

Through adopting above-mentioned technical scheme, owing to need cut off different length to the reinforcing bar, consequently, the hand wheel rotates the threaded rod, and the threaded rod rotates with fixing base and brace table to be connected, threaded rod and slider threaded connection, and then make the slider drive the support frame and remove, transfer the support frame to the length position of the reinforcing bar that needs cut off, then drive two-way lead screw by first motor and rotate, press from both sides the reinforcing bar that will cut off by pressing from both sides tight piece and press from both sides tightly, cut off it, simple structure has made things convenient for the reinforcing bar that cuts off different length.

The present invention may be further configured in a preferred embodiment as: the baffle below is provided with the hang plate of downward sloping, the both sides of hang plate length direction are provided with the anticreep board, the higher end of hang plate is located the below of incision, the discharge end and the below that the base was kept away from to the lower end of hang plate are provided with the case that gathers materials.

Through adopting above-mentioned technical scheme, after the cutter cuts off the reinforcing bar, loosen clamping component, the reinforcing bar after cutting off drops to the collection hopper through the hang plate that is equipped with in, has avoided the reinforcing bar to drop to the optional position after cutting off, not only picks up the reinforcing bar and need spend a large amount of time, and work efficiency reduces, causes certain influence to the indoor environment moreover.

The present invention may be further configured in a preferred embodiment as: the base is characterized in that a support frame is arranged on the workbench on one side of the feeding end of the base, two transmission wheels with circumferential grooves are arranged on the support frame in a rotating mode, the axes of the transmission wheels are perpendicular to the long edge direction of the support frame, a second rubber pad is arranged on the inner wall of each circumferential groove, and a rotating assembly for driving the transmission wheels to rotate is connected to the support frame.

Through adopting above-mentioned technical scheme, because the reinforcing bar is before getting into the cutter, need place the reinforcing bar through the manpower and form the shearing mouth that is used for shearing the reinforcing bar between activity cutter and fixed cutter, in operation, the angle of difficult control reinforcing bar, probably make the reinforcing bar take place the slope, when cutting off the reinforcing bar, it is low to cut off the precision, therefore, set up the carriage on the workstation, set up the drive wheel on the carriage, drive the drive wheel by rotating assembly and rotate, pay-off to the reinforcing bar, on the one hand the loss to manpower has been reduced, on the other hand, the precision that the reinforcing bar got into the cutter has been improved, the second rubber pad that is equipped with, when making pay-off to the reinforcing bar, relative slip can not take place between reinforcing bar and the drive wheel, the reinforcing bar has been made things convenient for the reinforcing.

The present invention may be further configured in a preferred embodiment as: the rotating assembly comprises a second motor, two chain wheels and a chain, the two chain wheels are respectively coaxial and fixedly connected with the driving wheel, the chain is meshed with the chain wheels, a rotating shaft of the second motor is coaxial and fixedly connected with one of the chain wheels, and a shell of the second motor is fixedly connected with the supporting frame.

Through adopting above-mentioned technical scheme, the drive second motor rotates, and the second motor drives rather than coaxial fixed connection's sprocket and rotates, and the sprocket drives rather than the drive wheel rotation of being connected, and the sprocket meshes with the chain, drives the reinforcing bar removal of placing on the drive wheel, has made things convenient for the pay-off to the reinforcing bar, has improved work efficiency.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the fixed block is arranged on the baffle plate, the first motor arranged on the baffle plate drives the bidirectional screw rod to rotate on the fixed block, the nut in threaded connection with the bidirectional screw rod is driven to move after the bidirectional screw rod rotates, the nut drives the clamping blocks connected with the nut to mutually approach or separate, the clamping blocks clamp the steel bars, and the steel bars are cut off by the cutting machine, so that the cutting precision of the cutting machine when the steel bars are cut off is improved;

2. by arranging the first rubber pad, when the clamping block clamps the steel bar, the stability of the clamping block in clamping the steel bar is improved, and further when the steel bar is cut off, the cutting precision of the steel bar cutting machine is improved;

3. the cutting machine is convenient to cut steel bars with different lengths which need to be cut off by abutting the steel bars with different lengths to be cut off;

4. through setting up second motor, sprocket, chain, drive wheel, rotate by the second motor and drive rather than the sprocket rotation of coaxial coupling, the sprocket drives the drive wheel and rotates, by sprocket and chain meshing, drives two drive wheels and carries out the pay-off to the reinforcing bar, has alleviateed the labour on the one hand, and on the other hand has improved the precision when reinforcing bar gets into the cutter, has further improved the cutting precision when cutter cuts off the reinforcing bar.

Drawings

FIG. 1 is a schematic view showing an overall structure of a reinforcing bar cutting machine;

FIG. 2 is a schematic view of a portion of a reinforcing bar cutting machine from a second perspective;

FIG. 3 is an enlarged schematic view of portion A of FIG. 1;

FIG. 4 is an enlarged schematic view of portion B of FIG. 2;

FIG. 5 is an enlarged schematic view of section C of FIG. 1;

FIG. 6 is a schematic view of the connection structure of the support frame, the driving wheel, the chain wheel and the chain.

Reference numerals: 1. a work table; 2. a base; 3. fixing a cutter; 4. a movable cutter; 5. a drive motor; 6. a feeding end; 7. a discharge end; 8. a support frame; 9. a support table; 10. a baffle plate; 11. a bidirectional lead screw; 12. a first motor; 13. a clamping block; 14. a nut; 15. a fixed block; 16. a strut; 17. a through hole; 18. a first rubber pad; 19. a chute; 20. a fixed seat; 21. a slider; 22. a threaded rod; 23. a hand wheel; 24. an inclined plate; 25. an anti-drop plate; 26. a material collecting box; 27. a support frame; 28. a driving wheel; 29. a second rubber pad; 30. a groove; 31. a second motor; 32. a sprocket; 33. and a chain.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a steel bar cutting machine, including workstation 1, the welding has base 2 on workstation 1, the welding has stationary knife 3 on base 2, be provided with movable cutter 4 on the base 2, be equipped with the driving motor 5 that drive movable cutter 4 removed on base 2, form the incision that is used for shearing the reinforcing bar between movable cutter 4 and the stationary knife 3, movable cutter 4 is prior art with the principle that the reinforcing bar cut off, no longer describe herein, the one end of base 2 is feed end 6, the other one end of base 2 is discharge end 7, the welding has brace table 9 on the workstation 1 of discharge end 7 one side, the welding has support frame 8 on brace table 9, there is baffle 10 along vertical direction welding on support frame 8, be provided with the tight clamping component of reinforcing bar clamp with the butt on baffle 10. 2 feed end 6 of base that set up on workstation 1 send the reinforcing bar to the movable cutter 4 of cutter and fixed cutter 3 between form be used for shearing the shearing mouth of reinforcing bar, the reinforcing bar butt that needs cut off is on the baffle 10 that cutter discharge end 7 one side set up, then the clamping component who sets up on by the baffle 10 presss from both sides the reinforcing bar tightly, movable cutter 4 who is equipped with on the drive base 2 by driving motor 5 cuts off the reinforcing bar, clamping component presss from both sides the reinforcing bar tightly, reinforcing bar skew or emergence are rocked when preventing to cut off, have the advantage that the precision is high of cutting off.

Referring to fig. 2, because when the cutter cuts off the reinforcing bar, loosen clamping assembly, the reinforcing bar can drop to the optional position, consequently, baffle 10 below welding has the hang plate 24 of downward sloping, hang plate 24 length direction's both sides welding has anticreep board 25, the higher end of hang plate 24 is located the below of incision, the discharge end 7 (see fig. 1) and the below of base 2 are kept away from to the lower end of hang plate 24 are provided with case 26 that gathers materials, the reinforcing bar after cutting off drops to case 26 that gathers materials through the hang plate 24 that is equipped with in, and not only improved work efficiency, and can not cause certain pollution to the environment.

Referring to fig. 3 and 4, in this embodiment, the clamping assembly includes a bidirectional screw 11, a first motor 12, two clamping blocks 13, two nuts 14, and a fixing block 15, the fixing block 15 is welded on the baffle 10, the two clamping blocks 13 are long-strip-shaped and are arranged along the vertical direction, so that the reinforcing steel bar can be conveniently cut off and then fall down, the bidirectional screw 11 is horizontally arranged, two ends of the bidirectional screw are rotatably connected with the fixing block 15, the two nuts 14 are in threaded connection with the bidirectional screw 11, a rotating shaft of the first motor 12 is coaxial with and welded to the bidirectional screw 11, a housing of the first motor 12 is welded on the baffle 10, the two clamping blocks 13 are respectively connected with the two nuts 14, one surfaces of the two clamping blocks 13, which are opposite, are arranged in an arc shape, and first rubber pads 18 are adhered to two arc-. When the reinforcing steel bar abutted to the baffle 10 is clamped, the first motor 12 is driven to rotate firstly, the bidirectional screw rod 11 fixedly connected with the bidirectional screw rod is driven to rotate, the bidirectional screw rod 11 rotates on the fixing block 15 to drive the nut 14 in threaded connection with the bidirectional screw rod, the nut 14 drives the clamping blocks 13 connected with the bidirectional screw rod to approach each other, the reinforcing steel bar is clamped, the reinforcing steel bar is cut off by the cutting machine, after the reinforcing steel bar is cut off, the first motor 12 is driven again, the clamping blocks 13 are loosened, the process is repeated, the reinforcing steel bar is cut into a plurality of sections, the first rubber pads 18 are arranged, so that the reinforcing steel bar clamping machine can adapt to reinforcing steel bars with different diameters on one hand, on the other hand, the stability of the clamping blocks 13 in the process of.

Because the thin steel bars which abut against the baffle plate 10 can penetrate through the through holes 17 formed in the baffle plate 10 and have certain influence on the cut steel bars, two support rods 16 are welded on the two clamping blocks 13 respectively, the two support rods 16 are horizontally arranged, one ends of the two support rods 16 are welded with the clamping blocks 13, the other ends of the two support rods 16 are welded with the nuts 14, the baffle plate 10 is provided with the two through holes 17 which are arranged in parallel along the moving direction of the clamping blocks 13, and the support rods 16 are connected with the through holes 17 in a sliding mode. Two-way lead screw 11 drives nut 14 and removes, nut 14 drives and presss from both sides tight piece 13 of clamp rather than being connected and is close to each other or when keeping away from, the through-hole 17 of seting up has made things convenient for the removal of pressing from both sides tight piece 13, connect branch 16 on pressing from both sides tight piece 13, branch 16 is connected with nut 14, branch 16 drives and presss from both sides tight piece 13 removal rather than being connected, press from both sides the reinforcing bar tightly or loosen, make the through-hole 17 setting of seting up press from both sides the both sides face of tight piece 13, it is more stable to press from both sides tight piece 13 to the.

Referring to fig. 5, because different lengths need to be cut off to the reinforcing bar, consequently, offer on brace table 9 and make support frame 8 keep away from base 2 (see fig. 1) or be close to base 2's spout 19, spout 19 keeps away from the one end welding of base 2 feed end 6 and has fixing base 20, be provided with slider 21 on brace table 9, slider 21 and spout 19 sliding connection, it has threaded rod 22 to run through slider 21 threaded connection, the one end of threaded rod 22 runs through fixing base 20 and rotates with fixing base 20 to be connected, the other one end of threaded rod 22 rotates with brace table 9 to be connected, threaded rod 22 is close to the one end fixed link of fixing base 20 and has hand. Threaded rod 22 rotates with fixing base 20 and brace table 9 to be connected, threaded rod 22 and 21 threaded connection of slider, and then make slider 21 drive support frame 8 and remove in spout 19, transfer support frame 8 to the length position of the reinforcing bar that needs to cut off, then drive two-way lead screw 11 by first motor 12 and rotate, press from both sides the reinforcing bar that the tight piece 13 will need to cut off by pressing from both sides and press from both sides tightly, cut off it, simple structure has made things convenient for the reinforcing bar that cuts off different length.

Referring to fig. 6, before the steel bar enters the cutting machine, the steel bar needs to be placed between the movable cutter 4 and the fixed cutter 3 to form a cutting opening for cutting the steel bar through manpower, when the cutting machine is operated, the angle of the steel bar is not easy to control, the steel bar can be inclined, and when the steel bar is cut off, the cutting precision is low, therefore, a support frame 27 is welded on the workbench 1 on one side of the feeding end 6 of the base 2, two driving wheels 28 with annular grooves 30 on the peripheral sides are rotatably arranged on the support frame 27, the axes of the two driving wheels 28 are perpendicular to the long side direction of the support frame 27, second rubber pads 29 are adhered to the inner walls of the two annular grooves 30, and a rotating assembly for driving the driving wheels 28 to rotate is. The driving wheel 28 is driven to rotate by the rotating assembly to feed the reinforcing steel bar, so that loss of manpower is reduced, accuracy of the reinforcing steel bar entering the cutting machine is improved, and the reinforcing steel bar feeding machine is provided with the second rubber pad 29, so that when the reinforcing steel bar is fed, relative sliding cannot occur between the reinforcing steel bar and the driving wheel 28, the reinforcing steel bar entering the cutting machine is facilitated, and when the cutting machine cuts the reinforcing steel bar, the cutting precision is higher.

In this embodiment, the rotating assembly includes second motor 31, two sprockets 32, chain 33, two sprockets 32 are coaxial and welded with drive wheel 28 respectively, chain 33 meshes with sprocket 32, the pivot of second motor 31 is coaxial and welded with one of them sprocket 32, the casing and the carriage 27 welding of second motor 31, drive second motor 31 rotates, second motor 31 drives rather than coaxial welded sprocket 32 and rotates, sprocket 32 drives rather than welded drive wheel 28 and rotates, sprocket 32 meshes with chain 33, the reinforcing bar that places on the drive wheel 28 is driven and is removed, the pay-off to the reinforcing bar has been made things convenient for, and work efficiency is improved.

The implementation principle of the embodiment is as follows: when the reinforcing steel bar is cut off, firstly, the second motor 31 is driven to rotate, the second motor 31 drives the chain wheel 32 welded with the second motor to rotate, the chain wheel 32 drives the driving wheel 28 welded with the second motor to rotate, the chain wheel 32 is meshed with the chain 33 to drive the reinforcing steel bar placed on the driving wheel 28 to be sent into the cutting machine, the reinforcing steel bar sent into the cutting machine is abutted to the baffle plate 10 welded on the supporting frame 8 to drive the first motor 12 to rotate and drive the bidirectional screw rod 11 welded with the bidirectional screw rod to rotate, the bidirectional screw rod 11 rotates on the fixed block 15 to drive the nut 14 in threaded connection with the bidirectional screw rod to rotate, the nut 14 drives the clamping block 13 welded with the bidirectional screw rod to approach each other to clamp the reinforcing steel bar, then the movable cutter 4 is driven to move by the driving motor 5 to cut off the reinforcing steel bar, after the reinforcing steel bar is cut off, the first motor 12 is driven to rotate and drive the bidirectional screw rod 11 welded with, nut 14 drives and keeps away from each other rather than welded tight piece 13 of clamp, loosen the reinforcing bar after cutting off, drop to in the case 26 that gathers materials, if need cut off the reinforcing bar of different length, rotate by threaded rod 22 and fixing base 20 and brace table 9 and be connected, threaded rod 22 and slider 21 threaded connection, and then make slider 21 drive support frame 8 remove in spout 19, transfer support frame 8 to the length position of the reinforcing bar that needs to cut off, then drive two-way lead screw 11 by first motor 12 and rotate, the reinforcing bar that will cut off by pressing from both sides tight piece 13 presss from both sides the clamp and cuts off, the cutting precision of reinforcing bar cutter has been improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A steel bar cutting machine, which comprises a workbench (1), wherein a base (2) is arranged on the workbench (1), a fixed cutter (3) is arranged on the base (2), a movable cutter (4) is arranged on the base (2), the base (2) is provided with a driving motor (5) for driving the movable cutter (4) to move, a shearing opening for shearing the reinforcing steel bars is formed between the movable cutter (4) and the fixed cutter (3), one end of the base (2) is a feeding end (6), the other end of the base (2) is a discharging end (7), it is characterized in that a supporting table (9) is arranged on the workbench (1) at one side of the discharge end (7), a supporting frame (8) is arranged on the supporting table (9), a baffle (10) is arranged on the supporting frame (8) along the vertical direction, the baffle (10) is provided with a clamping assembly for clamping the steel bars abutted against the baffle (10).

2. The steel bar cutting machine according to claim 1, wherein the clamping assembly comprises a bidirectional screw (11), a first motor (12), two clamping blocks (13), two nuts (14) and a fixing block (15), the fixing block (15) is fixedly connected to the baffle (10), the bidirectional screw (11) is horizontally arranged, two ends of the bidirectional screw are rotatably connected to the fixing block (15), the two nuts (14) are in threaded connection with the bidirectional screw (11), a rotating shaft of the first motor (12) is coaxial with and fixedly connected to the bidirectional screw (11), a shell of the first motor (12) is fixedly connected to the baffle (10), the two clamping blocks (13) are respectively connected to the two nuts (14), and one surface of each clamping block (13) opposite to each other is arc-shaped.

3. A steel bar cutting machine according to claim 2, characterized in that two support rods (16) are respectively connected to the two clamping blocks (13), the two support rods (16) are horizontally arranged, one end of each support rod (16) is fixedly connected with the clamping block (13), the other end of each support rod (16) is fixedly connected with a nut (14), two through holes (17) which are arranged in parallel are formed in the baffle plate (10) along the moving direction of the clamping block (13), and the support rods (16) are slidably connected with the through holes (17).

4. A steel bar cutting machine according to claim 3, characterized in that the two opposite arc-shaped surfaces of the two clamping blocks (13) are provided with first rubber pads (18).

5. A steel bar cutting-off machine according to claim 1, characterized in that a chute (19) is formed in the supporting table (9) and enables the supporting frame (8) to be far away from the base (2) or close to the base (2), a fixing seat (20) is arranged at one end, far away from the feeding end (6) of the base (2), of the chute (19), a sliding block (21) is arranged on the supporting table (9), the sliding block (21) is in sliding connection with the chute (19), a threaded rod (22) is in threaded connection with the sliding block (21), one end of the threaded rod (22) is in threaded connection with the fixing seat (20) and is in rotating connection with the fixing seat (20), the other end of the threaded rod (22) is in rotating connection with the supporting table (9), and a hand wheel (23) is fixedly connected with one end, close to the.

6. A steel bar cutting machine according to claim 5, characterized in that a downward inclined plate (24) is arranged below the baffle (10), two sides of the length direction of the inclined plate (24) are provided with anti-drop plates (25), the higher end of the inclined plate (24) is positioned below the shearing port, the lower end of the inclined plate (24) is far away from the discharge end (7) of the base (2) and a material collecting box (26) is arranged below the inclined plate.

7. A steel bar cutting machine according to claim 6, characterized in that a support frame (27) is arranged on the workbench (1) at one side of the feeding end (6) of the base (2), two driving wheels (28) with annular grooves (30) formed on the peripheral sides are rotatably arranged on the support frame (27), the axes of the two driving wheels (28) are perpendicular to the long side direction of the support frame (27), second rubber pads (29) are arranged on the inner walls of the two annular grooves (30), and a rotating assembly for driving the driving wheels (28) to rotate is connected to the support frame (27).

8. A steel bar cutting machine according to claim 7, characterized in that said rotating assembly comprises a second motor (31), two chain wheels (32), a chain (33), two said chain wheels (32) being respectively coaxial and fixedly connected with the driving wheel (28), said chain (33) being engaged with the chain wheels (32), the rotating shaft of said second motor (31) being coaxial and fixedly connected with one of the chain wheels (32), the housing of said second motor (31) being fixedly connected with the supporting frame (27).

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