Steel bar cutting machine

Abstract

The utility model belongs to the technical field of steel bar cutting machines, and discloses a steel bar cutting machine which comprises a base, a cutting assembly is arranged on the base, a lower mounting box is fixed to the base, a plurality of lower mounting grooves are formed in the lower mounting box, lower rolling wheels are arranged in the lower mounting grooves, and an upper mounting box is arranged above the lower mounting box. A plurality of upper mounting grooves are formed in the upper mounting box, upper rolling wheels are arranged in the upper mounting grooves, the number of the upper rolling wheels is equal to that of the lower rolling wheels, the positions of the upper rolling wheels and the positions of the lower rolling wheels are in one-to-one correspondence, the lower rolling wheels are matched with the upper rolling wheels and used for abutting against to-be-cut reinforcing steel bars, a driving assembly is arranged on the lower mounting box, and a pushing assembly and a limiting assembly are arranged on the base. According to the reinforcing steel bar cutting device, the pushing assembly pushes the upper mounting box to move downwards until the upper rolling wheels and the lower rolling wheels abut against reinforcing steel bars, the driving assembly drives the multiple lower rolling wheels to rotate so as to control the multiple reinforcing steel bars to advance, when the reinforcing steel bars are pushed to the limiting assembly, the cutting assembly cuts the reinforcing steel bars, and the reinforcing steel bar cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar cutting machines, in particular to a steel bar cutting machine. Background Art

[0002] The rebar cutting machine is a mechanical tool used to shear rebar. It is one of the indispensable equipment for rebar processing. It is mainly used for cutting rebar to a fixed length in house construction, bridges, tunnels, power stations, large-scale water conservancy projects, etc. Compared with other cutting equipment, the rebar cutting machine has the characteristics of light weight, low energy consumption, reliable operation and high efficiency. Therefore, it has been gradually widely adopted by mechanical processing and small steel rolling mills in recent years, and has played an important role in various fields of national economic construction.

[0003] A steel bar cutting machine is disclosed in a Chinese utility model patent with publication number CN214078995U. The steel bar cutting machine is used for cutting steel bars. The steel bar cutting machine includes a cutting machine body, and the cutting machine body is provided with a saw blade. The steel bar cutting machine includes: a base, a first fixed frame, a first limiting shaft, a second fixed frame, a second limiting shaft, a first pulley, a motor, a second pulley, a belt, a support plate, a threaded rod, a clamping plate and a baffle; the cutting machine body is fixed on the base; the first fixed frame is fixed on the base, and the first fixed frame is located on one side of the cutting machine body; the first limiting shaft is vertically fixed on the base, one end of the first limiting shaft is rotatably connected to the base, and the other end of the first limiting shaft is rotatably connected to the first fixed frame; the second fixed frame is fixed on the base; the second limiting shaft is vertically fixed on the base, one end of the second limiting shaft is rotatably connected to the base, and the other end of the second limiting shaft is rotatably connected to the second fixed frame, and the second limiting shaft is rotatably connected to the first limiting shaft. The gear train is a gear that is coupled to the first end of the driving mechanism, and the gear train is a gear that is coupled to the first end of the driving mechanism, and the gear train is a gear that is coupled to the first end of the driving mechanism, and the gear train is a gear that is coupled to the first end of the driving mechanism.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: when the staff use the above-mentioned steel bar cutting machine, the staff place the steel bar between the first limit axis and the second limit axis to cut the steel bar. Since the above-mentioned steel bar cutting machine can only cut a single steel bar, when the staff needs to cut multiple batches of steel bars, they can only place the steel bars one by one between the first limit axis and the second limit axis to cut them. This operation is relatively cumbersome, increases the labor intensity of the staff, and reduces the efficiency of cutting the steel bars. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a steel bar cutting machine.

[0006] The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: a steel bar cutting machine comprises a base, a cutting assembly for cutting steel bars is arranged on the base, a lower mounting box is fixed on the base, a plurality of equidistantly distributed lower mounting grooves are arranged on the lower mounting box, lower rollers are arranged in the plurality of lower mounting grooves, an upper mounting box is arranged above the lower mounting box, a plurality of equidistantly distributed upper mounting grooves are arranged in the upper mounting box, upper rollers are arranged in the plurality of upper mounting grooves, the number of the upper rollers is equal to that of the lower rollers and the positions correspond one to one, the lower rollers cooperate with the upper rollers and are used to press against the steel bars to be cut, a driving assembly for controlling the rotation of the lower roller and thus controlling the steel bars to move forward or backward is arranged on the lower mounting box, a pushing assembly for pushing the upper mounting box to move downward and a limiting assembly for limiting the position of the steel bars are arranged on the base.

[0007] By adopting the above technical scheme, when the staff uses the steel bar cutting machine to cut the steel bars, the staff first pushes the multiple steel bars to be cut between the multiple upper rollers and the lower rollers, the staff starts the pushing component, and the pushing component pushes the upper mounting box to move downward until the upper rollers, the lower rollers and the steel bars are tightly against the steel bars, the staff starts the driving component, and the driving component drives the multiple lower rollers to rotate so as to control the advancement of the multiple steel bars. During the pushing process of the steel bars, the upper rollers that are tightly against the multiple steel bars will also rotate under the pushing action of the steel bars. When the steel bars are pushed to the limiting component that limits the steel bars, the staff starts the cutting component, and the cutting component performs a cutting operation on the steel bars, so that the staff can cut multiple steel bars, which reduces the labor intensity of the staff and improves the efficiency of cutting the steel bars.

[0008] Furthermore, the lower roller and the upper roller are both dumbbell-shaped structures with thick ends and thin middle, so as to press against the steel bars to be cut.

[0009] By adopting the above technical solution, the lower roller and the upper roller are dumbbell-shaped structures, which makes the steel bars more stable after being abutted by the lower roller and the upper roller, thereby reducing the probability of the steel bars being subjected to force and thus warping when cutting the steel bars.

[0010] Furthermore, the lower roller outer wall fixing sleeve is provided with a lower rubber ring, and the upper roller outer wall fixing sleeve is provided with an upper rubber ring.

[0011] By adopting the above technical solution, the lower rubber ring and the upper rubber ring have a larger friction coefficient, which increases the friction between the lower roller, the upper roller and the steel bar, and reduces the probability that the steel bar slips between the lower roller and the upper roller, thereby affecting the bending result.

[0012] Furthermore, a scale bar is provided on the top of the base at a position away from the lower mounting box.

[0013] By adopting the above technical solution, the setting of the scale bar makes it easy for the staff to observe the length of the steel bar, so as to cut the steel bar to the length that needs to be cut.

[0014] Furthermore, the driving assembly includes a first motor fixed on the side wall of one side of the lower mounting box and an active rod fixed to the output end of the first motor through a coupling, the active rod passes through the lower mounting box and cooperates with the lower mounting box, the active rod passes through the centers of multiple lower rollers and is fixed to the lower rollers, and a driven rod is provided in the upper mounting box, which passes through the upper mounting box and cooperates with the upper mounting box, and the driven rod passes through the centers of multiple upper rollers and is fixed to the upper rollers.

[0015] By adopting the above technical solution, after the staff pushes multiple steel bars to be cut between the multiple upper rollers and the lower rollers, the staff starts the first motor, and the first motor drives the multiple lower rollers fixed on the outer wall of the active rod to rotate, thereby pushing the steel bars. During the pushing process of the steel bars, the upper rollers pressed against the multiple steel bars will also rotate under the pushing action of the steel bars.

[0016] Furthermore, a lower retaining spring is clamped on the side of the active rod away from the first motor, and a side of the lower retaining spring close to the lower mounting box abuts against a side wall of the lower mounting box, and an outer diameter of the lower retaining spring is larger than a diameter of the active rod. Upper retaining springs are clamped on both sides of the driven rod, and an outer diameter of the upper retaining spring is larger than a diameter of the driven rod. The sides of the two upper retaining springs close to each other abut against the side walls of both sides of the upper mounting box.

[0017] By adopting the above technical solution, when the upper roller and the lower roller need to be replaced after being used for a long time, the staff can use the circlip pliers to remove the lower circlip on the active rod and the upper circlip on the driven rod to replace the upper roller and the lower roller, which is convenient for the staff to replace the upper roller and the lower roller, thereby increasing the practicality of the steel bar cutting machine.

[0018] Furthermore, the pushing assembly includes a mounting frame fixed on the base and an upper hydraulic cylinder fixed to the top of the mounting frame, the piston rod end of the upper hydraulic cylinder is fixed to the top of the upper mounting box, and the side walls of the upper mounting box are slidably matched with the frame bodies on both sides of the mounting frame.

[0019] By adopting the above technical solution, after the staff pushes multiple steel bars to be cut between multiple upper rollers and lower rollers, the staff starts the upper hydraulic cylinder. After the upper hydraulic cylinder works, the output rod of the upper hydraulic cylinder extends and pushes the upper mounting box to move downward until the upper rollers and the lower rollers cooperate and press against the steel bars, thereby enhancing the stability of the first motor in the process of driving the steel bars to push, and reducing the probability of the steel bar shaking during the pushing process affecting the cutting operation.

[0020] Furthermore, the cutting assembly includes a support frame fixed on the base, a support rod fixed on the support frame, a driving hydraulic cylinder fixed on the side wall of one side of the support frame, a moving block fixed to the end of the piston rod of the driving hydraulic cylinder, a second motor fixed to the side of the moving block close to the upper mounting box, and a saw blade fixedly mounted on the end of the output shaft of the second motor, the moving block is located between the frame body at the top of the support frame and the top of the support rod, the output shaft end of the second motor passes through the moving block and cooperates with the moving block, and the saw blade is located on the side of the support frame away from the mounting frame.

[0021] By adopting the above technical solution, when the first motor pushes the steel bar to the limiting assembly for limiting the steel bar, the staff starts the second motor, and the rotation of the second motor drives the saw blade fixed at the end of the output shaft to rotate. Subsequently, the staff starts the driving hydraulic cylinder, drives the hydraulic cylinder to work and makes the output rod of the driving hydraulic cylinder push the moving block to move, thereby driving the second motor and the saw blade to move to cut multiple steel bars.

[0022] Furthermore, the limit assembly includes a limit block fixed to the side of the base away from the mounting frame, a lower hydraulic cylinder fixed to the side of the limit block away from the mounting frame, and a limit plate fixed to the end of the piston rod of the lower hydraulic cylinder, and the bottom surface of the limit plate abuts against the top of the base.

[0023] By adopting the above technical solution, the staff starts the lower hydraulic cylinder, the lower hydraulic cylinder works and makes the output rod of the lower hydraulic cylinder push the limit plate to move, the limit plate cooperates with the scale bar on the base, and after moving to the length required to be cut, the first motor is started to push the steel bar to the side of the limit plate close to the mounting frame, so that the staff can easily control the length of the steel bar cutting, thereby effectively controlling the accuracy of the steel bar cutting.

[0024] In summary, the utility model has the following beneficial effects:

[0025] 1. In the present application, when the staff uses the steel bar cutting machine to cut the steel bars, the staff first pushes the multiple steel bars to be cut between the multiple upper rollers and the lower rollers, and the staff starts the pushing component, which pushes the upper installation box downward until the upper rollers, the lower rollers and the steel bars are tightly pressed against each other, and the staff starts the driving component, which drives the multiple lower rollers to rotate so as to control the multiple steel bars to move forward. During the pushing process of the steel bars, the upper rollers pressed against the multiple steel bars will also rotate under the pushing action of the steel bars, and when the steel bars are pushed to the limiting component for limiting the position of the steel bars, the staff starts the cutting component, and the cutting component performs a cutting operation on the steel bars, so that the staff can cut the multiple steel bars, which reduces the labor intensity of the staff and improves the efficiency of cutting the steel bars.

[0026] 2. In the present application, when the upper roller and the lower roller need to be replaced after being used for a long time, the staff can use the circlip pliers to remove the lower circlip on the active rod and the upper circlip on the driven rod to replace the upper roller and the lower roller, which is convenient for the staff to replace the upper roller and the lower roller, thereby increasing the practicality of the steel bar cutting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the utility model for highlighting the driving component;

[0029] Figure 3 It is a schematic diagram of the structure of the utility model for highlighting the cutting assembly;

[0030] Figure 4 yes Figure 3 A magnified schematic diagram of center A.

[0031] In the figure: 1. base; 11. scale bar; 2. lower mounting box; 21. lower mounting groove; 22. lower roller; 221. lower rubber ring; 3. upper mounting box; 31. upper mounting groove; 32. upper roller; 321. upper rubber ring; 33. driven rod; 331. upper retaining spring; 4. driving assembly; 41. first motor; 42. active rod; 421. lower retaining spring; 5. pushing assembly; 51. mounting frame; 52. upper hydraulic cylinder; 6. cutting assembly; 61. supporting frame; 62. supporting rod; 63. driving hydraulic cylinder; 64. moving block; 65. second motor; 66. saw blade; 7. limiting assembly; 71. limiting block; 72. lower hydraulic cylinder; 73. limiting plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0033] Example 1

[0034] like Figure 1-4 As shown, the embodiment of the present application discloses a steel bar cutting machine, including a base 1, a lower mounting box 2, an upper mounting box 3, a driving assembly 4, a pushing assembly 5, a cutting assembly 6 and a limiting assembly 7. The lower mounting box 2 is fixed to the top of the base 1, and a plurality of equally distributed lower mounting grooves 21 are provided on the lower mounting box 2, and a plurality of lower mounting grooves 21 are provided with lower rollers 22. The upper mounting box 3 is arranged above the lower mounting box 2, and a plurality of equally distributed upper mounting grooves 31 are provided in the upper mounting box 3, and a plurality of upper mounting grooves 31 are provided with upper rollers 32, and the number of upper rollers 32 and the position of the lower rollers 22 are equal and correspond to each other, and the lower rollers 22 cooperate with the upper rollers 32 and are used to press against the steel bars to be cut. A driven rod 33 is provided in the upper mounting box 3, which passes through the upper mounting box 3 and cooperates with the upper mounting box 3, and the driven rod 33 passes through the centers of the plurality of upper rollers 32 and is fixed to the upper rollers 32.

[0035] The driving assembly 4 is arranged on the lower mounting box 2, and is used to control the rotation of the lower roller 22 so as to control the steel bar to move forward or backward. The driving assembly 4 includes a first motor 41 and an active rod 42. The first motor 41 is fixed to the side wall of one side of the lower mounting box 2, and the active rod 42 is fixed to the output end of the first motor 41 through a coupling, and the axis of the output end of the first motor 41 coincides with the axis of the active rod 42. The active rod 42 passes through the lower mounting box 2 and cooperates with the lower mounting box 2, and the active rod 42 passes through the center of multiple lower rollers 22 and is fixed to the lower rollers 22.

[0036] The pushing assembly 5 is arranged on the base 1, and is used to push the upper mounting box 3 to move downward. The pushing assembly 5 includes a mounting frame 51 and an upper hydraulic cylinder 52. The mounting frame 51 is fixed on the base 1, and the upper hydraulic cylinder 52 is fixed on the top of the mounting frame 51. The piston rod end of the upper hydraulic cylinder 52 is fixed to the top of the upper mounting box 3, and the side wall of the upper mounting box 3 is slidably matched with the frame body on both sides of the mounting frame 51.

[0037] The cutting assembly 6 is arranged on the base 1 and is used for cutting the steel bars. The cutting assembly 6 includes a support frame 61, a support rod 62, a driving hydraulic cylinder 63, a moving block 64, a second motor 65 and a saw blade 66. The support frame 61 is fixed on the base 1, and the support rod 62 is fixed on the support frame 61. The driving hydraulic cylinder 63 is fixed on the side wall of one side of the support frame 61, and the moving block 64 is fixed to the end of the piston rod of the driving hydraulic cylinder 63 and is located between the frame body at the top of the support frame 61 and the top of the support rod 62. The second motor 65 is fixed to the side of the moving block 64 close to the upper mounting box 3, and the end of the output shaft of the second motor 65 passes through the moving block 64 and cooperates with the moving block 64. The saw blade 66 is fixedly sleeved on the end of the output shaft of the second motor 65 and the saw blade 66 is located on the side of the support frame 61 away from the mounting frame 51.

[0038] The limiting assembly 7 is arranged on the base 1 and is used to limit the steel bar. The limiting assembly 7 includes a limiting block 71, a lower hydraulic cylinder 72 and a limiting plate 73. The limiting block 71 is fixed to the side of the base 1 away from the mounting frame 51, and the lower hydraulic cylinder 72 is fixed to the side of the limiting block 71 away from the mounting frame 51. The limiting plate 73 is fixed to the end of the piston rod of the lower hydraulic cylinder 72, and the bottom surface of the limiting plate 73 abuts against the top of the base 1.

[0039] The use principle of a steel bar cutting machine in the present embodiment is as follows: when the staff uses the steel bar cutting machine to cut the steel bars, the staff first pushes the multiple steel bars to be cut between the multiple upper rollers 32 and the lower rollers 22, and the staff starts the first motor 41. The first motor 41 drives the multiple lower rollers 22 fixed to the outer wall of the active rod 42 to rotate, thereby pushing the steel bars. During the pushing process of the steel bars, the upper roller 32 pressed against the multiple steel bars will also rotate under the pushing action of the steel bars. The staff starts the upper hydraulic cylinder 52. After the upper hydraulic cylinder 52 works, the output rod of the upper hydraulic cylinder 52 is extended and pushes the upper mounting box 3 downward until the upper roller 32 and the lower roller 22 cooperate and press against the steel bars, thereby enhancing the stability of the first motor 41 in the process of driving the steel bars to be pushed. The staff starts the second motor 65, and the rotation of the second motor 65 drives the saw blade 66 fixed at the end of the output shaft to rotate. Then, the staff starts the driving hydraulic cylinder 63, and the driving hydraulic cylinder 63 works and makes the output rod of the driving hydraulic cylinder 63 push the moving block 64 to move, thereby driving the second motor 65 and the saw blade 66 to move to cut multiple steel bars, so that the staff can cut multiple steel bars, which reduces the labor intensity of the staff and improves the efficiency of cutting steel bars.

[0040] In order to improve the stability of the steel bar during the cutting process, the lower roller 22 and the upper roller 32 are dumbbell-shaped structures with thick ends and thin middle to press against the steel bar to be cut. The dumbbell-shaped structures of the lower roller 22 and the upper roller 32 make the steel bar more stable after being pressed against by the lower roller 22 and the upper roller 32, reducing the probability of the steel bar being subjected to force and thus warping when cutting the steel bar.

[0041] In this embodiment, a lower rubber ring 221 is fixedly mounted on the outer wall of the lower roller 22, and an upper rubber ring 321 is fixedly mounted on the outer wall of the upper roller 32. The lower rubber ring 221 and the upper rubber ring 321 have a large friction coefficient, which increases the friction between the lower roller 22, the upper roller 32 and the steel bar, and reduces the probability that the steel bar slips between the lower roller 22 and the upper roller 32, thereby affecting the bending result.

[0042] In this embodiment, a scale bar 11 is provided at a position on the top of the base 1 away from the lower mounting box 2. The scale bar 11 is provided to facilitate the staff to observe the length of the steel bar, so as to cut the steel bar to the length that needs to be cut.

[0043] In order to facilitate the staff to replace the upper roller 32 and the lower roller 22, a lower retaining spring 421 is clamped on the side of the active rod 42 away from the first motor 41, and the side of the lower retaining spring 421 close to the lower mounting box 2 abuts against the side wall of the lower mounting box 2, and the outer diameter of the lower retaining spring 421 is larger than the diameter of the active rod 42. Upper retaining springs 331 are clamped on both sides of the driven rod 33, and the outer diameter of the upper retaining spring 331 is larger than the diameter of the driven rod 33, and the sides of the two upper retaining springs 331 close to each other abut against the side walls of the upper mounting box 3. When the upper roller 32 and the lower roller 22 need to be replaced after long-term use, the staff can use retaining spring pliers to remove the lower retaining spring 421 on the active rod 42 and the upper retaining spring 331 on the driven rod 33 to replace the upper roller 32 and the lower roller 22, thereby increasing the practicality of the steel bar cutting machine.

[0044] Example 2

[0045] like Figure 1 As shown, the difference between this embodiment and embodiment 1 is that: the lower mounting box 2, the upper mounting box 3, the upper roller 32, the lower roller 22, the driving assembly 4, and the pushing assembly 5 are provided in two groups and are located on the base 1, so as to further improve the stability of the steel bar during the cutting process. In addition, in order to facilitate the steel bar cutting machine to cut steel bars of different diameters, the diameters of the recessed parts of the upper roller 32 and the lower roller 22 can also be set to different diameters to expand the application range of the cutting machine.

[0046] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A steel bar cutting machine, comprising a base (1), on which a cutting assembly (6) for cutting steel bars is arranged, wherein: A lower mounting box (2) is fixed on the base (1), and a plurality of lower mounting grooves (21) are arranged on the lower mounting box (2), and lower rollers (22) are arranged in the plurality of lower mounting grooves (21). An upper mounting box (3) is arranged above the lower mounting box (2), and a plurality of upper mounting grooves (31) are arranged in the upper mounting box (3), and upper rollers (32) are arranged in the plurality of upper mounting grooves (31). The number of the upper rollers (32) is equal to that of the lower rollers (22), and the positions thereof correspond one to one. The lower rollers (22) cooperate with the upper rollers (32) and are used to press against the steel bars to be cut. A driving component (4) for controlling the rotation of the lower rollers (22) and thus controlling the steel bars to move forward or backward is arranged on the lower mounting box (2), and a pushing component (5) for pushing the upper mounting box (3) to move downward and a limiting component (7) for limiting the position of the steel bars are arranged on the base (1).

2. A steel bar cutting machine according to claim 1, characterized in that: The lower roller (22) and the upper roller (32) are both dumbbell-shaped structures with thick ends and thin middle, so as to press against the steel bars to be cut.

3. A steel bar cutting machine according to claim 1, characterized in that: The outer wall fixing sleeve of the lower roller (22) is provided with a lower rubber ring (221), and the outer wall fixing sleeve of the upper roller (32) is provided with an upper rubber ring (321).

4. A steel bar cutting machine according to claim 1, characterized in that: A scale bar (11) is provided at a position on the top of the base (1) away from the lower installation box (2).

5. A steel bar cutting machine according to claim 1, characterized in that: The driving assembly (4) comprises a first motor (41) fixed on a side wall of one side of the lower mounting box (2) and an active rod (42) fixed to the output end of the first motor (41) via a coupling, the active rod (42) passing through the lower mounting box (2) and cooperating with the lower mounting box (2), the active rod (42) passing through the centers of a plurality of lower rollers (22) and being fixed to the lower rollers (22), and a driven rod (33) passing through the upper mounting box (3) and cooperating with the upper mounting box (3) is arranged in the upper mounting box (3), the driven rod (33) passing through the centers of a plurality of upper rollers (32) and being fixed to the upper rollers (32).

6. A steel bar cutting machine according to claim 5, characterized in that: A lower retaining spring (421) is clamped on the side of the active rod (42) away from the first motor (41), and a side of the lower retaining spring (421) close to the lower mounting box (2) abuts against the side wall of the lower mounting box (2), and an outer diameter of the lower retaining spring (421) is greater than a diameter of the active rod (42). Upper retaining springs (331) are clamped on both sides of the driven rod (33), and an outer diameter of the upper retaining spring (331) is greater than a diameter of the driven rod (33), and a side of the two upper retaining springs (331) close to each other abuts against the side walls of both sides of the upper mounting box (3).

7. A steel bar cutting machine according to claim 1, characterized in that: The pushing assembly (5) comprises a mounting frame (51) fixed on the base (1) and an upper hydraulic cylinder (52) fixed on the top of the mounting frame (51); the piston rod end of the upper hydraulic cylinder (52) is fixed to the top of the upper mounting box (3); the side wall of the upper mounting box (3) is slidably matched with the frame body on both sides of the mounting frame (51).

8. A steel bar cutting machine according to claim 7, characterized in that: The cutting assembly (6) comprises a support frame (61) fixed on the base (1), a support rod (62) fixed on the support frame (61), a driving hydraulic cylinder (63) fixed on a side wall of one side of the support frame (61), a moving block (64) fixed to the end of the piston rod of the driving hydraulic cylinder (63), a second motor (65) fixed to the side of the moving block (64) close to the upper mounting box (3), and a saw blade (66) fixedly sleeved on the end of the output shaft of the second motor (65), wherein the moving block (64) is located between the frame body at the top of the support frame (61) and the top of the support rod (62), the end of the output shaft of the second motor (65) passes through the moving block (64) and cooperates with the moving block (64), and the saw blade (66) is located on the side of the support frame (61) away from the mounting frame (51).

9. A steel bar cutting machine according to claim 7, characterized in that: The limiting assembly (7) comprises a limiting block (71) fixed to a side of the base (1) away from the mounting frame (51), a lower hydraulic cylinder (72) fixed to a side of the limiting block (71) away from the mounting frame (51), and a limiting plate (73) fixed to the end of the piston rod of the lower hydraulic cylinder (72), wherein the bottom surface of the limiting plate (73) abuts against the top of the base (1).

Images