A steel bar cutting machine for construction engineering construction

Abstract

The present invention relates to the technical field of steel bar blanking machines, and in particular to a steel bar blanking machine for construction engineering. Its technical solution includes a turntable, a base, a mounting frame, a pressure cylinder and a positioning plate. A material trough is provided inside the turntable, a travel groove is provided inside the turntable, a positioning plate is provided inside the travel groove, a hydraulic rod is provided on one side above the turntable, a cutting head is provided at the lower end of the hydraulic rod, a support column is provided at the lower end of the turntable, a ball bearing is installed at the lower end of the support column, a pressure cylinder is fixed at the center of the turntable, a mounting cylinder is connected to the outer wall of the pressure cylinder, a piston is slidably installed inside the mounting cylinder, and a plug rod is provided at one end of the piston. The present invention uses the silos and positioning plates distributed in a circular array inside the turntable to store, discharge and cut steel bars at the same time, thereby improving the processing efficiency of the steel bar blanking machine.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar cutting machines, and particularly to a steel bar cutting machine for construction engineering construction. Background Art

[0002] In construction engineering, steel bars are an important structural material, mainly used for the reinforcement and strengthening of concrete structures. Steel bars are mainly used in tensile members of concrete structures to bear tensile forces; at the same time, they can also improve the compressive performance of concrete. The structural design in construction engineering arranges steel bars according to load conditions and safety requirements to ensure the stability and durability of the structure.

[0003] A steel bar cutting machine is a device specifically used for shearing, cutting, and processing steel bars. It is usually widely used in construction sites to quickly and accurately process steel bars of required lengths and shapes. However, during the steel bar cutting process, manual feeding and discharging are required repeatedly, and the steel bar cutting machine cannot be used during the discharging process, reducing the processing efficiency of the steel bar cutting machine. Therefore, those skilled in the art have provided a steel bar cutting machine for construction engineering construction to solve the problems raised in the above background art. Summary of the Invention

[0004] The purpose of the present invention is to provide a steel bar cutting machine for construction engineering construction in view of the problems existing in the background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A steel bar cutting machine for construction engineering construction, including a turntable, a base, a mounting frame, a pressure cylinder, and a positioning plate. The turntable internally defines longitudinally distributed material grooves with different diameters, and the material grooves are annularly and arrayedly distributed inside the turntable. The turntable internally defines annularly and arrayedly distributed stroke grooves that penetrate the material grooves and the upper and lower ends of the turntable. A positioning plate penetrating the material grooves is arranged inside the stroke grooves. One side above the turntable is provided with a hydraulic cylinder I, and a cutting head is arranged at the lower end of the hydraulic cylinder I. The lower end of the turntable is provided with annularly and arrayedly distributed support columns, and balls are installed at the lower ends of the support columns. A pressure cylinder is fixedly arranged at the center of the turntable. The outer wall of the pressure cylinder is communicated and installed with annularly and arrayedly distributed mounting cylinders. A piston is slidably installed inside the mounting cylinders, and a plug rod connected to the positioning plate is arranged at one end of the piston.

[0006] Preferably, a one-way valve nozzle is arranged at the lower end of the pressure cylinder, and a pressure gauge is communicated and installed inside the upper end of the pressure cylinder. The one-way valve nozzle is used for the one-way flow of the pressure medium, and the pressure situation inside the pressure cylinder is detected through the pressure gauge.

[0007] Preferably, a pressure pump is provided at the upper end of the base. A hose is provided at the output end of the pressure pump. One end of the hose is connected and installed with a docking nozzle. A second hydraulic rod with a telescopic end connected to the lower end of the docking nozzle is provided at the upper end of the base. The extrusion pump conveys pressurized gas through the hose and inputs it into the pressurizing cylinder through the docking nozzle inserted into the inside of the one-way valve seat. The longitudinal movement of the second hydraulic rod drives the docking nozzle to dock with and release the docking relationship with the one-way valve nozzle.

[0008] Preferably, an annular reinforcement ring is provided between the support columns. An annular gear ring is provided on the inner wall of the support columns. A motor is provided at the upper end of the base. A gear meshing with the gear ring is provided at the output end of the motor. The reinforcement ring connects the support columns together. The driving force of the motor acts on the gear, driving the gear to push the gear ring, and then driving the integrally formed reinforcement ring to rotate synchronously.

[0009] Preferably, a pointer is provided at one end of the positioning plate. A scale plate distributed in an annular array and located on one side of the travel groove is provided on the upper end of the turntable. The pointer corresponds to the position of the scale plate, so as to understand the position of the positioning plate and determine the cutting length of the steel bar.

[0010] Preferably, a sliding sleeve is embedded and installed inside one end of the installation cylinder. One end of the plug rod is slidably inserted into the sliding sleeve. The plug rod slides inside the sliding sleeve, so that when the plug rod slides inside the installation cylinder, the sliding of the plug rod is guided, and at the same time, the piston prevents the pressure inside the plug rod from leaking.

[0011] Preferably, an annular guide rail is provided at the upper end of the base. The ball is rotatably installed inside the guide rail. The guide rail provides rolling support for the ball, so that the ball is guided when rolling, and the stability of the ball during use is improved.

[0012] Preferably, a ring of installation frames is sleeved outside the turntable. Symmetrically distributed travel plates are provided inside the installation frames. Springs are provided between the travel plates and the installation frames. Guide wheels are rotatably installed at the opposite ends of the travel plates. A guide frame located on one side of the guide wheel is provided on one side of the upper end of the installation frame. The travel plates are elastically supported inside the installation frames by the springs, so that the guide wheels are elastically supported. The guide wheels slide and guide the steel bars entering the material groove, and the guide frame supports the springs inserted into the guide wheels.

[0013] Preferably, symmetrically distributed through holes are provided inside the installation frames. Positioning rods located inside the springs and sliding through them are provided at the opposite ends of the travel plates. The positioning rods slide inside the springs, and the guide rods move with the travel plates and slide inside the through holes, preventing the springs from shifting outward and guiding the telescopic process of the springs.

[0014] Preferably, electric push rods are symmetrically arranged on both sides above the base and are connected to the support columns. The telescopic ends of the electric push rods are provided with a lifting ring fixedly placed at the lower end of the installation frame and sleeved outside the turntable. When the electric push rods are in use, they drive the lifting ring to move longitudinally, and then longitudinally move the installation frame to adjust the position of the material groove corresponding to the guide wheel.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] In the present invention, steel bars used in construction projects are inserted into the material grooves. The material grooves are adapted to the outer shape of the steel bars and are distributed in an annular array. Positioning plates for positioning the steel bars are arranged inside the material grooves. The positioning plates are movable to adjust the length of the steel bars at the openings of the material grooves, thereby determining the cutting length of the steel bars. During the process of cutting and processing the steel bars, the steel bars rotated to one side are taken and stored. The process of cutting and truncating the steel bars can synchronize the taking and feeding of the steel bars, improving the processing efficiency of the steel bar cutting machine in construction projects. Description of the Drawings

[0017] Figure 1 is the front view three-dimensional structure schematic diagram of the present invention;

[0018] Figure 2 is the bottom view three-dimensional structure schematic diagram of the present invention;

[0019] Figure 3 is the top view three-dimensional structure schematic diagram of the gear ring of the present invention;

[0020] Figure 4 is the top view three-dimensional structure schematic diagram of the pressure cylinder of the present invention;

[0021] Figure 5 is the partial front cross-sectional three-dimensional structure schematic diagram of the pressure cylinder of the present invention;

[0022] Figure 6 is the side view three-dimensional structure schematic diagram of the material groove of the present invention;

[0023] Figure 7 is the side view three-dimensional structure schematic diagram of the installation frame of the present invention.

[0024] Reference numerals: 1, the first hydraulic rod; 2, the cutting head; 3, the turntable; 4, the trough; 5, the support column; 6, the guide rail; 7, the base; 8, the mounting frame; 9, the travel groove; 10, the scale plate; 11, the electric push rod; 12, the gear ring; 13, the reinforcement ring; 14, the lifting ring; 15, the pressure cylinder; 16, the positioning plate; 17, the pointer; 18, the pressure gauge; 19, the mounting cylinder; 20, the plug rod; 21, the sliding sleeve; 22, the piston; 23, the ball; 24, the docking nozzle; 25, the second hydraulic rod; 26, the pressure pump; 27, the hose; 28, the one-way valve nozzle; 29, the through hole; 30, the guide wheel; 31, the spring; 32, the travel plate; 33, the positioning rod; 34, the guide frame; 35, the motor; 36, the gear. Detailed implementation manners

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1 to 7 , three embodiments provided by the present invention:

[0027] Embodiment 1:

[0028] A steel bar cutting machine for construction engineering construction includes a turntable 3, a base 7, a mounting frame 8, a pressure cylinder 15 and a positioning plate 16. The turntable 3 is internally provided with troughs 4 longitudinally distributed with different diameters. The troughs 4 are annularly arrayed inside the turntable 3. The turntable 3 is internally provided with travel grooves 9 annularly arrayed and penetrating through the troughs 4 and the upper and lower ends of the turntable 3. The travel grooves 9 are internally provided with a positioning plate 16 penetrating through the troughs 4. One side above the turntable 3 is provided with the first hydraulic rod 1, and the lower end of the first hydraulic rod 1 is provided with a cutting head 2. The lower end of the turntable 3 is provided with support columns 5 annularly arrayed, and the lower ends of the support columns 5 are installed with balls 23;

[0029] One end of the mounting cylinder 19 is internally embedded with a sliding sleeve 21, and one end of the plug rod 20 is slidably inserted into the sliding sleeve 21;

[0030] A circular reinforcement ring 13 is arranged between the support columns 5, a circular gear ring 12 is arranged on the inner wall of the support columns 5, a motor 35 is arranged on the upper end of the base 7, and a gear 36 meshing with the gear ring 12 is arranged at the output end of the motor 35;

[0031] In this embodiment, the material grooves 4 are 6 mm, 8 mm, 10 mm, and 12 mm from top to bottom. The 6-mm one is for small building structures or concrete reinforcement bars. The 8-mm one is mainly for medium and small steel bar structures such as slab columns and floor slabs. The 10-mm one is suitable for beams, columns, and other large concrete structures. The 12-mm one is for important structures such as long-span beams and columns. According to the uses of steel bars in construction projects, they are inserted into the corresponding material grooves 4. One end of the steel bar is limited by the positioning plate 16. When it is below the cutting head 2, the hydraulic rod 1 drives the cutting head 2 to descend to cut the steel bar. After cutting, the steel bar does not need to be taken out. The motor 35 drives the gear 36 to rotate. The gear 36 pushes the toothed ring 12, thereby driving the turntable 3 to rotate. When the turntable 3 rotates, it drives the material groove 4 to rotate by one position. The pre-stored steel bar is located below the cutting head 2 to prepare for cutting processing. During this process, the steel bar that rotates to one side after cutting is taken out, and then the steel bar is discharged. After discharging, the steel bar to be processed is pre-stored. The cutting processing and the storage and retrieval of materials are carried out simultaneously without interference, optimizing the problem that the storage and retrieval of materials cannot perform steel bar cutting processing, and improving the efficiency of the steel bar cutting machine for steel bar cutting processing.

[0032] Embodiment 2:

[0033] It includes a turntable 3, a base 7, an installation frame 8, a pressure cylinder 15, and a positioning plate 16. Inside the turntable 3, there are material grooves 4 longitudinally distributed with different diameters. The material grooves 4 are annularly and arrayedly distributed inside the turntable 3. Inside the turntable 3, there are stroke grooves 9 annularly and arrayedly distributed and penetrating through the material grooves 4 and the upper and lower ends of the turntable 3. Inside the stroke grooves 9, there is a positioning plate 16 penetrating through the material grooves 4. On one side above the turntable 3, there is a hydraulic rod 1. The lower end of the hydraulic rod 1 is provided with a cutting head 2. At the lower end of the turntable 3, there are support columns 5 annularly and arrayedly distributed. The lower ends of the support columns 5 are installed with balls 23;

[0034] One end of the installation cylinder 19 is internally embedded with a sliding sleeve 21. One end of the plug rod 20 is slidably inserted into the sliding sleeve 21;

[0035] Between the support columns 5, there is an annular reinforcement ring 13. The inner wall of the support column 5 is provided with an annular toothed ring 12. On the upper end of the base 7, there is a motor 35. The output end of the motor 35 is provided with a gear 36 meshing with the toothed ring 12;

[0036] The material trough 4 is 6mm, 8mm, 10mm, and 12mm from top to bottom. 6mm is used for small building structures or concrete reinforcement, 8mm is mainly used for small and medium-sized steel structures such as slabs, columns, and floor slabs, 10mm is suitable for beams, columns, and other large concrete structures, and 12mm is used for important structures such as large-span beams and columns. According to the purpose of the steel bars in the construction project, they are inserted into the corresponding material trough 4. One end of the steel bar is limited by the positioning plate 16. When it is located below the cutting head 2, the hydraulic rod 1 drives the cutting head 2 to descend to cut the steel bar. The cut steel bar does not need to be To take out, the motor 35 drives the gear 36 to rotate, and the gear 36 pushes the gear ring 12, thereby driving the turntable 3 to rotate. When the turntable 3 rotates, it drives the material trough 4 to rotate a material position. The pre-stored steel bars are located below the cutting head 2 and are ready for cutting. During this process, the steel bars that are rotated to one side after cutting are taken out, and then the steel bars are unloaded. After unloading, the steel bars to be processed are pre-stored. The cutting process and storage and retrieval are carried out simultaneously without interfering with each other, which optimizes the problem that the storage and retrieval cannot carry out the steel bar cutting process, and the efficiency of the steel bar unloading machine for steel bar cutting processing is improved.

[0037] A pressurizing cylinder 15 is fixed at the center of the turntable 3. The outer wall of the pressurizing cylinder 15 is connected to the mounting cylinders 19 distributed in a ring array. A piston 22 is slidably mounted inside the mounting cylinder 19. One end of the piston 22 is provided with a plug rod 20 connected to the positioning plate 16.

[0038] A one-way valve nozzle 28 is provided at the lower end of the pressurizing cylinder 15, and a pressure gauge 18 is installed in the upper end of the pressurizing cylinder 15;

[0039] A pressure pump 26 is provided at the upper end of the base 7, a hose 27 is provided at the output end of the pressure pump 26, one end of the hose 27 is connected to the docking nozzle 24, and a hydraulic rod 25 is provided at the upper end of the base 7, the telescopic end of which is connected to the lower end of the docking nozzle 24;

[0040] A pointer 17 is provided at one end of the positioning plate 16, and a scale plate 10 is provided at the upper end of the turntable 3 and is distributed in a ring array and is located on one side of the travel groove 9;

[0041] In this embodiment, hydraulic rod 25 drives docking nozzle 24 to be inserted into the inside of one-way valve nozzle 28, and pressure medium is transported to the inside of docking nozzle 24 through pressure pump 26, and then enters into pressurizing cylinder 15 through one-way valve nozzle 28. Pressure medium squeezes piston 22, and multiple pistons 22 move simultaneously. Pressure condition inside pressurizing cylinder 15 is known through pressure gauge 18. When piston 22 moves, it drives positioning plate 16 to move inside stroke groove 9. Position of positioning plate 16 is known through position of pointer 17 corresponding to scale plate 10, and then position of positioning plate 16 in stroke groove 9 is determined. After positioning plate 16 is positioned, length of cut steel bars is adjusted, and positioning plate 16 is adjusted simultaneously for multiple material troughs 4. In construction projects, cutting length of steel bars is adjustable, and it is convenient to use.

[0042] Example 3:

[0043] It includes a turntable 3, a base 7, a mounting frame 8, a pressure cylinder 15 and a positioning plate 16. Inside the turntable 3, there are longitudinally distributed material grooves 4 with different diameters. The material grooves 4 are arranged in a circular array inside the turntable 3. Inside the turntable 3, there are travel grooves 9 arranged in a circular array and penetrating through the material grooves 4 and the upper and lower ends of the turntable 3. Inside the travel grooves 9, there is a positioning plate 16 penetrating through the material grooves 4. On one side above the turntable 3, there is a hydraulic rod 1. At the lower end of the hydraulic rod 1, there is a cutting head 2. At the lower end of the turntable 3, there are support columns 5 arranged in a circular array. At the lower ends of the support columns 5, there are ball bearings 23 installed;

[0044] One end of the mounting cylinder 19 is internally embedded with a sliding sleeve 21. One end of the plug rod 20 is slidably inserted into the sliding sleeve 21;

[0045] There is a circular reinforcing ring 13 arranged between the support columns 5. On the inner wall of the support columns 5, there is a circular gear ring 12. At the upper end of the base 7, there is a motor 35. At the output end of the motor 35, there is a gear 36 meshing with the gear ring 12;

[0046] The material grooves 4 are 6mm, 8mm, 10mm, and 12mm from top to bottom. The 6mm one is for small building structures or concrete reinforcement bars. The 8mm one is mainly for medium and small steel bar structures such as slab columns and floor slabs. The 10mm one is suitable for beams, columns and other large concrete structures. The 12mm one is for important structures such as long-span beams and columns. According to the use of steel bars in construction projects, they are inserted into the corresponding material grooves 4. One end of the steel bar is limited by the positioning plate 16. When it is below the cutting head 2, the hydraulic rod 1 drives the cutting head 2 to descend to cut the steel bar. After cutting, the steel bar does not need to be taken out. The motor 35 drives the gear 36 to rotate. The gear 36 pushes the gear ring 12, thereby driving the turntable 3 to rotate. When the turntable 3 rotates, it drives the material grooves 4 to rotate by one position. The pre-stored steel bar is located below the cutting head 2 to prepare for cutting processing. During this process, the steel bar that rotates to one side after cutting is taken out, and then the steel bar is discharged. After discharging, the pre-storage of the steel bar to be processed is carried out. The cutting processing and the storage and retrieval of materials are carried out simultaneously without interference, optimizing the problem that the storage and retrieval of materials cannot carry out the cutting processing of steel bars, and improving the efficiency of the steel bar cutting machine for cutting steel bars.

[0047] At the center of the turntable 3, there is a fixed pressure cylinder 15. The outer wall of the pressure cylinder 15 is connected and installed with mounting cylinders 19 arranged in a circular array. Inside the mounting cylinders 19, there is a sliding piston 22. One end of the piston 22 is provided with a plug rod 20 connected to the positioning plate 16;

[0048] At the lower end of the pressure cylinder 15, there is a one-way valve nozzle 28. Inside the upper end of the pressure cylinder 15, there is a pressure gauge 18 connected and installed;

[0049] At the upper end of the base 7, a pressure pump 26 is provided. At the output end of the pressure pump 26, a hose 27 is provided. One end of the hose 27 is connected and installed with a docking nozzle 24. At the upper end of the base 7, a second hydraulic rod 25 with a telescopic end connected to the lower end of the docking nozzle 24 is provided.

[0050] One end of the positioning plate 16 is provided with a pointer 17. On the upper end of the turntable 3, a scale plate 10 distributed in an annular array and located on one side of the travel groove 9 is provided.

[0051] The second hydraulic rod 25 drives the docking nozzle 24 to be inserted into the internal of the one-way valve nozzle 28. The pressure medium is transported to the inside of the docking nozzle 24 through the pressure pump 26, and then enters the pressure cylinder 15 through the one-way valve nozzle 28. The pressure medium squeezes the piston 22, and multiple pistons 22 move simultaneously. The pressure situation inside the pressure cylinder 15 is understood through the pressure gauge 18. When the piston 22 moves, it drives the positioning plate 16 to move inside the travel groove 9. The position of the positioning plate 16 is understood by the position of the pointer 17 corresponding to the scale plate 10, and then the position of the positioning plate 16 in the travel groove 9 is determined. After the positioning plate 16 is positioned, the length of the cut reinforcing bar is adjusted. Multiple material grooves 4 are adjusted for the positioning plate 16 simultaneously. In construction projects, the cut length of the reinforcing bar is adjustable and it is convenient to use.

[0052] At the upper end of the base 7, an annular guide rail 6 is provided. The ball 23 is installed inside the guide rail 6 in a rolling manner.

[0053] The outer side of the turntable 3 is sleeved with installation frames 8 distributed in an annular array. Inside the installation frames 8, symmetrically distributed travel plates 32 are provided. Between the travel plates 32 and the installation frames 8, springs 31 are provided. On the opposite ends of the travel plates 32, guide wheels 30 are rotatably installed. On one side of the upper end of the installation frame 8, a guide frame 34 located on one side of the guide wheel 30 is provided.

[0054] Symmetrically distributed through holes 29 are opened inside the installation frames 8. On the opposite ends of the travel plates 32, positioning rods 33 located inside the springs 31 and sliding through them are provided.

[0055] On both sides above the base 7, symmetrically distributed electric push rods 11 connected to the support columns 5 are provided. At the telescopic ends of the electric push rods 11, a lifting ring 14 fixedly placed at the lower end of the installation frame 8 and sleeved on the outer side of the turntable 3 is provided.

[0056] In this embodiment, the reinforcing bar is inserted through the guide frame 34 and enters and is inserted into the material groove 4 through the guide wheel 30. When the reinforcing bar is inserted into the inside of the material groove 4, sliding guidance is obtained, which is convenient for the placement before the material groove 4 cuts. And the guide wheel 30 is elastically supported by the spring 31, so that after the reinforcing bar is inserted into the inside of the material groove 4, elastic clamping is obtained. At the same time, the electric push rod 11 drives the lifting ring 14 to move longitudinally. By adjusting the height of the guide wheel 30, the guide wheel 30 corresponds to the material grooves 4 with different apertures. Therefore, when cutting and processing reinforcing bars of different specifications, the positioning structure of the reinforcing bar is flexible in use and has strong adaptability.

[0057] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0058] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced by the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A steel bar cutting machine for construction engineering, comprising a turntable (3), a base (7), a mounting frame (8), a pressure cylinder (15) and a positioning plate (16), characterized in that: The turntable (3) is provided with material troughs (4) which are longitudinally distributed and have different calibers. The material troughs (4) are distributed in a circular array inside the turntable (3). The turntable (3) is provided with travel grooves (9) which are distributed in a circular array and penetrate the material troughs (4) and the upper and lower ends of the turntable (3). A positioning plate (16) which penetrates the material trough (4) is provided inside the travel groove (9). A hydraulic rod (1) is provided on one side above the turntable (3). A cutting head (2) is provided at the lower end of the hydraulic rod (1). Support columns (5) which are distributed in a circular array are provided at the lower end of the turntable (3). When the turntable (3) rotates, the material trough (4) is driven to rotate by one material position, thereby unloading the steel bars. After unloading, the steel bars to be processed are pre-stored. The cutting process and storage and retrieval are performed simultaneously. A ball (23) is installed at the lower end of the support column (5), a pressure cylinder (15) is fixed at the center of the turntable (3), and the outer wall of the pressure cylinder (15) is connected to the mounting cylinders (19) distributed in an annular array, and a piston (22) is slidably installed inside the mounting cylinder (19). One end of the piston (22) is provided with a plug rod (20) connected to the positioning plate (16). When the piston (22) moves, it drives the positioning plate (16) to move inside the stroke groove (9). An annular reinforcement ring (13) is provided between the support columns (5), and an annular gear ring (12) is provided on the inner wall of the support column (5). A motor (35) is provided at the upper end of the base (7), and a gear (36) meshing with the gear ring (12) is provided at the output end of the motor (35).

2. A construction engineering steel bar cutting machine according to claim 1, characterized in that: A one-way valve nozzle (28) is provided at the lower end of the pressurizing cylinder (15), and a pressure gauge (18) is installed in the upper end of the pressurizing cylinder (15) and is connected to the interior thereof.

3. A construction engineering steel bar cutting machine according to claim 1, characterized in that: A pressure pump (26) is provided at the upper end of the base (7), a hose (27) is provided at the output end of the pressure pump (26), one end of the hose (27) is connected to a docking nozzle (24) and installed thereon, and a hydraulic rod (25) having a telescopic end connected to a lower end of the docking nozzle (24) is provided at the upper end of the base (7).

4. A construction engineering steel bar cutting machine according to claim 1, characterized in that: A pointer (17) is provided at one end of the positioning plate (16), and a scale plate (10) distributed in a ring array and located on one side of the travel groove (9) is provided at the upper end of the turntable (3).

5. A construction engineering steel bar cutting machine according to claim 1, characterized in that: A sliding sleeve (21) is embedded and installed inside one end of the installation cylinder (19), and one end of the plug rod (20) is slidably inserted into the interior of the sliding sleeve (21).

6. A construction engineering steel bar cutting machine according to claim 1, characterized in that: An annular guide rail (6) is provided at the upper end of the base (7), and the ball (23) is rollingly mounted inside the guide rail (6).

7. A steel bar cutting machine for construction engineering according to claim 1, characterized in that: The outer side of the turntable (3) is sleeved with a mounting frame (8) distributed in a ring array, and the interior of the mounting frame (8) is provided with a symmetrically distributed stroke plate (32), a spring (31) is provided between the stroke plate (32) and the mounting frame (8), a guide wheel (30) is rotatably mounted on one opposite end of the stroke plate (32), and a guide frame (34) located on one side of the guide wheel (30) is provided on one side of the upper end of the mounting frame (8).

8. A construction engineering steel bar cutting machine according to claim 7, characterized in that: The installation frame (8) is provided with symmetrically distributed through holes (29), and the travel plate (32) is provided with a positioning rod (33) located inside the spring (31) and slidingly passing through the spring (31) at the opposite end.

9. A steel bar cutting machine for construction engineering according to claim 8, characterized in that: Electric push rods (11) are symmetrically distributed and connected to the support columns (5) on both sides above the base (7), and a lifting ring (14) is fixed to the lower end of the installation frame (8) and sleeved on the outer side of the turntable (3) at the telescopic end of the electric push rod (11).

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