A steel bar cutting machine

Abstract

The present invention discloses a steel bar cutting machine, which relates to the technical field of cutting machines and includes a handheld cutting machine body, a passive cutting head, a synchronous movement mechanism, and a cooperating anti-separation mechanism. The handheld cutting machine body has a supporting base mounted on one end, a movable cutting head disposed on the supporting base, and the movable cutting head is fixedly connected to the output end of the handheld cutting machine body, and a first movable groove and a second movable groove disposed on the supporting base. The passive cutting head is L-shaped as a whole, and two cutting surfaces corresponding to the movable cutting head are disposed on its inner side. A bayonet is disposed on the supporting base and located between the movable cutting head and the passive cutting head. The synchronous movement mechanism is connected to the movable cutting head and the passive cutting head via the first movable groove and the second movable groove, respectively. The steel bar cutting machine has a clamping and positioning function during cutting, saving time and effort and improving safety.

Description

Technical Field

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

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

[0003] At present, in existing building construction projects, cement piles need to be frequently crushed. For most cement piles, there is a steel cage on the outside. Therefore, after the existing cement piles are crushed with a crusher, the outer steel bars need to be cut one by one by a hand-held steel bar cutter until the steel cage at the cement pile is completely cut. When the existing hand-held steel bar cutter cuts the steel bars, since the steel cage is composed of multiple vertical steel bars and annular steel bars alternating, it is necessary to continuously adjust the position of the cutting head of the hand-held steel bar cutter to cut. In this process, not only the workload of the staff is increased, but also the cut steel bars are prone to ejection due to the force of their own deformation during cutting, resulting in a safety hazard when manually cutting. For this reason, we propose a steel bar cutter. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a steel bar cutting machine which has the function of clamping and positioning when cutting, saves time and labor, improves safety, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a steel bar cutting machine, comprising a handheld cutting machine body, a passive cutting head, a synchronous movement mechanism and a cooperative anti-separation mechanism;

[0006] Handheld cutting machine body: a bearing base is installed at one end, a movable cutting head is provided on the bearing base, and the movable cutting head is fixedly connected to the output end of the handheld cutting machine body, and a first movable groove and a second movable groove are provided on the bearing base;

[0007] Passive cutting head: The whole is L-shaped, and the inner side is provided with two cutting surfaces corresponding to the active cutting head. A bayonet is provided on the supporting base and located between the active cutting head and the passive cutting head;

[0008] Synchronous moving mechanism: connected to the active cutting head and the passive cutting head through the first moving groove and the second moving groove respectively;

[0009] Cooperate with the anti-separation mechanism: connected with the passive cutting head.

[0010] Furthermore, the synchronous movement mechanism includes an L-shaped connecting block that passes through the first moving groove, the connecting block is slidably connected to the first moving groove, and the top of the connecting block is fixedly connected to the movable cutting head; the synchronous movement mechanism is provided so that the movable cutting head and the passive cutting head move toward each other when cutting the steel bar;

[0011] The outer side of the connecting block is fixedly connected to a movable rack, and the outer side of the movable rack is connected to a reverse piece;

[0012] The reversing member is connected with a moving rod, the moving rod passes through the second moving groove, and the top of the moving rod is fixedly connected to the passive cutting head.

[0013] Furthermore, the reversing member includes a first rotating gear meshingly connected to the moving rack, and the first rotating gear is rotatably connected to the bottom of the supporting base via a rotating shaft;

[0014] The outer side of the first rotating gear is meshedly connected with the second rotating gear, and the axis of the second rotating gear is fixedly connected to the rotating shaft, and the bottom of the supporting base is fixedly installed with a support base for supporting the rotating shaft;

[0015] The top of the rotating shaft is fixedly connected to a positioning rod, one end of which is fixedly connected to the positioning shaft. The outer side of the positioning shaft is rotatably connected to a connecting rod, one end of which is rotatably connected to the moving rod. A reversing member is provided to achieve reverse adjustment of the passive cutting head.

[0016] Furthermore, the cooperation anti-separation mechanism includes a push plate fixedly connected to the outer side of the passive cutting head, one side of the push plate contacts the push frame, and a support member for supporting the push frame is installed on the bearing base; the transverse positioning mechanism and the lateral positioning mechanism position the cut steel bar after cutting, and the cooperation anti-separation mechanism is provided to prevent the cut steel bar from separating;

[0017] A transverse positioning mechanism is provided on the top of the pushing frame, and a lateral positioning mechanism is provided on one side of the pushing frame.

[0018] Furthermore, the support member includes a fixing seat fixedly mounted on one side of the bearing base, a fixing rod slidingly passing through the fixing seat, one end of the fixing rod is fixedly connected to the pushing frame, and a buffer spring is sleeved on the outer side of the fixing rod, and both ends of the buffer spring are fixedly connected to the pushing frame and the fixing seat respectively;

[0019] One end of the fixing rod away from the pushing frame is fixedly connected with a limit plate for preventing the fixing rod from being separated. A support member is provided to support the pushing frame.

[0020] Furthermore, a plurality of connecting ears are installed on the inner side of the pushing frame, one side of the connecting ear is fixedly connected to a support spring, one end of the support spring is fixedly connected to a fixing ear, and the fixing ear is fixedly installed on the passive cutting head.

[0021] Furthermore, the transverse positioning mechanism includes a transverse slot provided at the top transverse section of the push frame, a driving member provided at the transverse slot, and two movable blocks connected to the driving member. The two movable blocks slide through the transverse slot, and one end of the movable block located outside the transverse slot is fixedly connected to a clamping mechanism. The transverse positioning mechanism is provided to clamp and position the cut vertical rebar.

[0022] Furthermore, the driving member includes a bidirectional threaded screw that is rotatably connected to the interior of the transverse groove, and a micro motor for driving the bidirectional threaded screw is installed on the push frame, and the two moving blocks are respectively threadedly sleeved on the outside of the bidirectional threaded screw. The driving member is provided to achieve the function of driving the two moving blocks;

[0023] A partition block is fixedly connected inside the transverse slot, which divides the transverse slot into two slots. Electric push rods are respectively fixedly connected inside the transverse slots, and output ends of the electric push rods are respectively fixedly connected to the moving blocks.

[0024] Furthermore, the lateral positioning mechanism includes a side groove provided on one side of the pushing frame, and a pushing screw is rotatably connected to the side groove, and a pushing motor for driving the pushing screw is installed on the pushing frame;

[0025] The outer side of the pushing screw is meshed with a guide plate, which slides through the side groove and is connected to a clamping mechanism at one end. A lateral positioning mechanism is provided to achieve the function of lateral positioning of the steel bar.

[0026] Furthermore, the clamping mechanism includes a connecting shell fixedly mounted on one end of the guide plate, two sliders being slidably connected to the interior of the connecting shell, two sliding rods slidingly passing through the two sliders, the two ends of the two sliding rods being fixedly connected to the inner wall of the connecting shell respectively, a connecting spring being sleeved on the outer side of the sliding rod, and the connecting spring being located between the two sliders;

[0027] The side of the slider away from the connection shell is rotatably connected to a rotating support rod via a hinge support. One end of each of the two rotating support rods is rotatably connected to a mounting seat via a pin. A clamping block is fixedly connected between the two mounting seats, and a clamping pad is sleeved on the outside of the clamping block. A pressure sensor is installed between the clamping pad and the clamping block. By providing a clamping mechanism, the cut steel bars can be clamped and positioned.

[0028] Compared with the prior art, the beneficial effects of the present invention are: the steel bar cutting machine has the following advantages:

[0029] 1. The handheld cutter body is equipped with an active cutting head and a passive cutting head respectively on the supporting base. When cutting the steel cage at the broken cement pile in the building construction project, it only needs to insert one end of the supporting base between the staggered horizontal and vertical steel bars, so as to achieve stable cutting of the steel cage point by point.

[0030] 2. During cutting, the active cutting head and the passive cutting head can achieve the initial anti-bullet effect on the steel cage;

[0031] 3. The active cutting head and the passive cutting head cooperate with the anti-separation mechanism to clamp and position the cut horizontal or vertical steel bars, preventing the steel cage from tipping over after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the handheld cutting machine body of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of the bearing base of the present invention;

[0035] Figure 4 This is a schematic diagram of the structure of the movable cutting head of the present invention;

[0036] Figure 5 This is a schematic diagram of the passive cutting head structure of the present invention;

[0037] Figure 6 This is a schematic diagram of the bottom structure of the bearing base of the present invention;

[0038] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of area A in the middle;

[0039] Figure 8 This is a schematic diagram of the connecting block structure of the present invention;

[0040] Figure 9 This is a schematic diagram of the structure of the limiting plate of the present invention;

[0041] Figure 10 This is a schematic diagram of the structure of the push frame of the present invention;

[0042] Figure 11 This is a schematic diagram of the structure of the push screw of the present invention;

[0043] Figure 12 This is a schematic diagram of the connecting shell structure of the present invention;

[0044] Figure 13 This is a schematic diagram of the explosion structure of the connecting shell and the clamping block of the present invention;

[0045] Figure 14 This is a structural diagram of embodiment 2 of the present invention;

[0046] Figure 15 This is a structural diagram of Example 3 of the present invention.

[0047] In the figure: 1-handheld cutting machine body;

[0048] 2-carrying base; 21-movable cutting head; 22-first movable slot; 23-second movable slot;

[0049] 3-passive cutting head; 31-bayonet;

[0050] 4-synchronous moving mechanism; 41-connecting block; 42-moving rack; 43-reversing member; 431-first rotating gear; 432-second rotating gear; 433-rotating shaft; 434-supporting seat; 435-positioning support rod; 436-positioning shaft; 437-connecting support rod; 44-moving rod;

[0051] 5 - cooperating anti-separation mechanism; 51 - push plate; 52 - push frame; 521 - transverse groove; 522 - side groove; 523 - connecting ear; 524 - support spring; 525 - fixing ear; 53 - support member; 531 - fixing seat; 532 - fixing rod; 533 - buffer spring; 534 - limit plate;

[0052] 6-lateral positioning mechanism; 61-driving member; 611-bidirectional threaded screw; 612-micro motor; 62-moving block;

[0053] 7-lateral positioning mechanism; 71-pushing screw; 72-pushing motor; 73-guide plate;

[0054] 8-clamping mechanism; 81-connecting shell; 82-slider; 83-slide rod; 84-connecting spring; 85-rotating support rod; 86-mounting seat; 87-clamping block;

[0055] 9-electric push rod; 91-partition block. DETAILED DESCRIPTION

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0057] See also Figure 1-15 , the present invention provides the following technical solutions:

[0058] Example 1:

[0059] A steel bar cutting machine comprises a handheld cutting machine body 1, a passive cutting head 3, a synchronous movement mechanism 4 and a cooperation anti-separation mechanism 5;

[0060] The handheld cutting machine body 1 has a supporting base 2 mounted on one end, a movable cutting head 21 fixedly connected to the output end of the handheld cutting machine body 1, and a first movable groove 22 and a second movable groove 23 mounted on the supporting base 2;

[0061] The passive cutting head 3 is L-shaped as a whole, and has two cutting surfaces on its inner side corresponding to the active cutting head 21. A bayonet 31 is provided on the supporting base 2 and located between the active cutting head 21 and the passive cutting head 3;

[0062] Thus, when cutting, the bayonet 31 is set so that the bearing base 2 is sleeved on the outside of the cut vertical steel bar or horizontal steel bar;

[0063] Synchronous moving mechanism 4: connected to the active cutting head 21 and the passive cutting head 3 through the first moving groove 22 and the second moving groove 23 respectively;

[0064] The synchronous movement mechanism 4 includes an L-shaped connecting block 41 that passes through the first moving groove 22. The connecting block 41 is slidably connected to the first moving groove 22, and the top of the connecting block 41 is fixedly connected to the movable cutting head 21.

[0065] A movable rack 42 is fixedly connected to the outer side of the connecting block 41, and a reverse member 43 is connected to the outer side of the movable rack 42. The reverse member 43 includes a first rotating gear 431 meshing with the movable rack 42. The first rotating gear 431 is rotatably connected to the bottom of the supporting base 2 via a rotating shaft. In the present invention, the diameter of the first rotating gear 431 is larger than that of the second rotating gear 432, thereby ensuring that the first rotating gear 431 and the movable rack 42 are aligned.

[0066] The outer side of the first rotating gear 431 is meshedly connected to the second rotating gear 432, and the axis of the second rotating gear 432 is fixedly connected to the rotating shaft 433. The bottom of the supporting base 2 is fixedly installed with a support base 434 for supporting the rotating shaft 433.

[0067] A positioning rod 435 is fixedly connected to the top of the rotating shaft 433, and one end of the positioning rod 435 is fixedly connected to the positioning shaft 436. A connecting rod 437 is rotatably connected to the outer side of the positioning shaft 436, and one end of the connecting rod 437 is rotatably connected to the moving rod 44.

[0068] The reversing member 43 is connected to a moving rod 44 , which passes through the second moving groove 23 , and the top of the moving rod 44 is fixedly connected to the passive cutting head 3 ;

[0069] Specific implementation process: When cutting the steel cage outside the crushed cement pile, the worker uses the handheld steel bar cutting machine body to pass one end of the bearing base 2 through the opening formed by the vertical steel bars and the transverse steel bars. Then, the position of the handheld cutting machine body 1 is adjusted so that the bayonet 31 of the bearing base 2 moves to the outside of the vertical steel bar to be cut. At the same time, the transverse steel bars surrounding the outside of the vertical steel bar at this point are located above the bearing base 2.

[0070] When the position is adjusted, the horizontal steel bars and the vertical steel bars at that point are cut synchronously, and the output end of the handheld cutting machine is in operation. While it is running, the movable cutting head 21 is running along the steel bars. While it is moving, the connecting block 41 at the bottom is moving along the bottom of the supporting base 2, which drives the moving rack 42 to move at the same time. When the moving rack 42 moves, it drives the first rotating gear 431 to rotate. When the first rotating gear 431 rotates, it drives the second rotating gear 432 to rotate. When the second rotating gear 432 rotates, it drives the connecting rod 437 to move through the positioning rod 435. Further, due to the connection rod 437 to the When the movable rod 44 is limited, the movable rod 44 drives the passive cutting head 3 to move along the direction of the movable cutting head 21 until the movable cutting head 21 and the passive cutting head 3 approach each other and synchronously cut the horizontal steel bars and the vertical steel bars in an interlaced manner. In this process, on the one hand, the passive cutting head 3 and the movable cutting head 21 move toward each other for cutting, so that the steel bars are subjected to bidirectional force during cutting, thereby preventing the steel bars from being ejected after cutting. On the other hand, the handheld steel bar cutting machine body can synchronously cut the steel bars in two directions at one point of the steel cage, without the need for the staff to adjust the cutting position multiple times for one point. At the same time, the present application can also be used to cut steel bars in one direction.

[0071] Cooperate with the anti-separation mechanism 5, connect the anti-separation mechanism 5 with the passive cutting head 3, and prevent the steel bar from being instantly separated while the passive cutting head 3 cooperates with the active cutting head 21 to cut the steel bar;

[0072] The cooperation anti-separation mechanism 5 includes a pushing plate 51 fixedly connected to the outside of the passive cutting head 3, one side of the pushing plate 51 contacts the pushing frame 52, and a support member 53 for supporting the pushing frame 52 is installed on the bearing base 2, and the support member 53 includes a fixing seat 531 fixedly installed on one side of the bearing base 2, and a fixing rod 532 is slidably passed through the fixing seat 531, one end of the fixing rod 532 is fixedly connected to the pushing frame 52, and a buffer spring 533 is sleeved on the outside of the fixing rod 532, and the two ends of the buffer spring 533 are respectively fixedly connected to the pushing frame 52 and the fixing seat 531, and the end of the fixing rod 532 away from the pushing frame 52 is fixedly connected to a limit plate 534 that prevents the fixing rod 532 from separating;

[0073] A transverse positioning mechanism 6 is provided on the top of the pushing frame 52, and a lateral positioning mechanism 7 is provided on one side of the pushing frame 52. The transverse positioning mechanism 6 and the lateral positioning mechanism 7 position the cut steel bars after the steel bars are cut. The transverse positioning mechanism 6 includes a transverse groove 521 arranged at the top transverse section of the pushing frame 52, and a driving member 61 is provided at the transverse groove 521. Two moving blocks 62 are connected to the driving member 61. Preferably, in the present invention, the two moving blocks 62 are located at the other side of the pushing frame 52 and are respectively fixedly installed with shift blocks, so that when the supporting base 2 is inserted into the steel bars, the setting of the two shift blocks can play a role in shifting the steel bars, and the two moving blocks 62 slide through the transverse groove 521, and the end of the moving block 62 located on the outside of the transverse groove 521 is fixedly connected with a clamping mechanism 8.

[0074] The driving member 61 includes a bidirectional threaded screw 611 rotatably connected to the inside of the transverse groove 521 , and a micro motor 612 for driving the bidirectional threaded screw 611 is installed on the pushing frame 52 , and the two moving blocks 62 are respectively threadedly sleeved on the outside of the bidirectional threaded screw 611 .

[0075] The lateral positioning mechanism 7 includes a side groove 522 provided on one side of the pushing frame 52, and a pushing screw 71 is rotatably connected to the side groove 522. A pushing motor 72 for driving the pushing screw 71 is installed on the pushing frame 52.

[0076] The outer side of the push screw 71 is meshedly connected with a guide plate 73 , which slides through the side groove 522 , and one end of the guide plate 73 is connected to the clamping mechanism 8 .

[0077] The clamping mechanism 8 includes a connecting shell 81 fixedly mounted on one end of the guide plate 73. Two sliders 82 are slidably connected to the connecting shell 81. Two slide rods 83 are slidably passed through the two sliders 82. The two ends of the two slide rods 83 are respectively fixedly connected to the inner wall of the connecting shell 81. A connecting spring 84 is sleeved on the outer side of the slide rod 83, and the connecting spring is located between the two sliders 82.

[0078] The side of the slider 82 away from the connecting shell 81 is rotatably connected to a rotating support rod 85 through a hinge support. One end of the two rotating support rods 85 is rotatably connected to a mounting seat 86 through a pin shaft. A clamping block 87 is fixedly connected between the two mounting seats 86, and a clamping pad is provided on the outside of the clamping block 87. A pressure sensor is installed between the clamping pad and the clamping block 87. Through the setting of the pressure sensor, the clamping pad can achieve the effect of stably cutting the cut steel bars.

[0079] Specific implementation process: while the passive cutting head 3 moves along the bearing base 2, it moves by pushing the fixed rod 532, and while the fixed rod 532 moves relative to the fixed seat 531, it drives the pushing frame 52 to move synchronously, and the pushing frame 52 moves relative to the passive cutting head 3 until the passive cutting head 3 moves to the steel bar to be cut. At this time, the two clamping mechanisms 8 at the transverse positioning mechanism 6 move to the outside of the vertical steel bar to be cut, and at the same time, a clamping mechanism 8 at the carriage positioning mechanism moves to the outside of the transverse steel bar to be cut. While cutting, the driving member 61 operates, that is, the micro motor 612 drives the bidirectional threaded screw 611 to rotate relative to the transverse groove 521, and while the bidirectional threaded screw 611 rotates, it provides driving force in opposite directions to the two moving blocks 62. At this time, the connecting shell 81 drives the clamping block 87 thereon to move along the steel bar until the steel bar is cut, and the two clamping blocks 87 stably clamp the cut steel bar.

[0080] At the same time, the lateral positioning mechanism 7 is the same as the above-mentioned transverse positioning mechanism 6, but the difference is that while moving, the motor 72 is pushed to run, so that the push screw 71 rotates along the side groove 522, providing driving force for the guide plate 73, and the guide plate 73 drives the clamping block 87 to clamp the transverse steel bars to be cut through the connecting shell 81. At the same time, with the cooperation of the supporting base 2 and the clamping block 87, the cut transverse steel bars can be clamped and fixed.

[0081] Example 2:

[0082] Based on Example 1: A plurality of connecting ears 523 are installed on the inner side of the pushing frame 52, one side of the connecting ear 523 is fixedly connected to a support spring 524, one end of the support spring 524 is fixedly connected to a fixing ear 525, and the fixing ear 525 is fixedly installed on the passive cutting head 3, so that through the plurality of connecting ears 523 and the fixing ears 525, and the setting of the support spring 524 between the connecting ear 523 and the fixing ear 525, the connection between the pushing frame 52 and the supporting base 2 is more stable, which facilitates the movement of the pushing frame 52.

[0083] Example 3:

[0084] Based on Example 1: Different from Example 1, in order to make the two moving blocks 62 run asynchronously, a partition block 91 is fixedly connected to the inside of the transverse groove 521, and the partition block 91 divides the transverse groove 521 into two grooves. Electric push rods 9 are respectively fixedly connected to the inside of the transverse groove 521, and the output ends of the electric push rods 9 are respectively fixedly connected to the moving blocks 62. Therefore, through the setting of the two electric push rods 9, the two moving blocks 62 can maintain asynchronous operation, that is, when the steel bar to be cut is located between the two clamping mechanisms 8 and deviates from the center position, this setting can be used to achieve the effect of stably clamping the cut steel bar.

[0085] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A steel bar cutting machine, characterized in that: It comprises a handheld cutting machine body (1), a passive cutting head (3), a synchronous moving mechanism (4) and a matching anti-separation mechanism (5); A handheld cutting machine body (1) is provided with a supporting base (2) at one end, a movable cutting head (21) is provided on the supporting base (2), and the movable cutting head (21) is fixedly connected to the output end of the handheld cutting machine body (1), and a first movable groove (22) and a second movable groove (23) are provided on the supporting base (2); The passive cutting head (3) is L-shaped as a whole, and is provided with two cutting surfaces corresponding to the active cutting head (21) on its inner side. A bayonet (31) is provided on the supporting base (2) and located between the active cutting head (21) and the passive cutting head (3); Synchronous moving mechanism (4): connected to the movable cutting head (21) and the passive cutting head (3) via a first moving groove (22) and a second moving groove (23) respectively; Cooperating with the anti-separation mechanism (5): connected to the passive cutting head (3); The cooperation anti-separation mechanism (5) comprises a push plate (51) fixedly connected to the outside of the passive cutting head (3), one side of the push plate (51) contacts a push frame (52), and a support member (53) for supporting the push frame (52) is installed on the bearing base (2); The top of the pushing frame (52) is provided with a transverse positioning mechanism (6), and one side of the pushing frame (52) is provided with a lateral positioning mechanism (7); The support member (53) includes a fixed seat (531) fixedly mounted on one side of the bearing base (2); a fixed rod (532) is slidably passed through the fixed seat (531); one end of the fixed rod (532) is fixedly connected to the pushing frame (52); and a buffer spring (533) is sleeved on the outer side of the fixed rod (532); and both ends of the buffer spring (533) are fixedly connected to the pushing frame (52) and the fixed seat (531) respectively; One end of the fixing rod (532) away from the pushing frame (52) is fixedly connected to a limiting plate (534) for preventing the fixing rod (532) from being separated.

2. A steel bar cutting machine according to claim 1, characterized in that: The synchronous movement mechanism (4) comprises an L-shaped connecting block (41) penetrating the first moving groove (22), wherein the connecting block (41) is slidably connected to the first moving groove (22), and the top of the connecting block (41) is fixedly connected to the movable cutting head (21); The outer side of the connecting block (41) is fixedly connected to a movable rack (42), and the outer side of the movable rack (42) is connected to a reverse member (43); The reversing member (43) is connected to a moving rod (44), the moving rod (44) passes through the second moving groove (23), and the top of the moving rod (44) is fixedly connected to the passive cutting head (3).

3. A steel bar cutting machine according to claim 2, characterized in that: The reverse member (43) comprises a first rotating gear (431) meshingly connected with the movable rack (42), and the first rotating gear (431) is rotatably connected to the bottom of the supporting base (2) via a rotating shaft; The first rotating gear (431) is meshedly connected to the outside of the first rotating gear (432), and the axis of the second rotating gear (432) is fixedly connected to a rotating shaft (433), and a support seat (434) for supporting the rotating shaft (433) is fixedly installed at the bottom of the supporting base (2); The top of the rotating shaft (433) is fixedly connected to a positioning support rod (435), and one end of the positioning support rod (435) is fixedly connected to a positioning shaft (436). The outer side of the positioning shaft (436) is rotatably connected to a connecting support rod (437), and one end of the connecting support rod (437) is rotatably connected to the moving rod (44).

4. A steel bar cutting machine according to claim 1, characterized in that: A plurality of connecting ears (523) are installed on the inner side of the pushing frame (52), one side of the connecting ear (523) is fixedly connected to a support spring (524), one end of the support spring (524) is fixedly connected to a fixing ear (525), and the fixing ear (525) is fixedly installed on the passive cutting head (3).

5. The steel bar cutting machine according to claim 1, characterized in that: The transverse positioning mechanism (6) comprises a transverse groove (521) arranged at the top transverse section of the pushing frame (52), a driving member (61) is provided at the transverse groove (521), two moving blocks (62) are connected to the driving member (61), the two moving blocks (62) slide through the transverse groove (521), and one end of the moving block (62) located outside the transverse groove (521) is fixedly connected to a clamping mechanism (8).

6. A steel bar cutting machine according to claim 5, characterized in that: The driving member (61) includes a bidirectional threaded screw (611) rotatably connected to the interior of the transverse groove (521), and a micro motor (612) for driving the bidirectional threaded screw (611) is installed on the pushing frame (52), and the two moving blocks (62) are respectively threadedly sleeved on the outside of the bidirectional threaded screw (611); A partition block (91) is fixedly connected inside the transverse groove (521), and the partition block (91) divides the transverse groove (521) into two grooves. Electric push rods (9) are fixedly connected inside the transverse groove (521), and the output ends of the electric push rods (9) are fixedly connected to the moving blocks (62).

7. The steel bar cutting machine according to claim 1, characterized in that: The lateral positioning mechanism (7) includes a side groove (522) provided on one side of the pushing frame (52), and a pushing screw (71) is rotatably connected to the side groove (522), and a pushing motor (72) for driving the pushing screw (71) is installed on the pushing frame (52); The outer side of the pushing screw rod (71) is meshedly connected with a guide plate (73), the guide plate (73) slides through the side groove (522), and one end of the guide plate is connected to a clamping mechanism (8).

8. The steel bar cutting machine according to claim 7, characterized in that: The clamping mechanism (8) includes a connecting shell (81) fixedly mounted on one end of the guide plate (73), two sliders (82) are slidably connected inside the connecting shell (81), two slide bars (83) are slidably passed through the two sliders (82), and the two ends of the two slide bars (83) are respectively fixedly connected to the inner wall of the connecting shell (81), and a connecting spring (84) is sleeved on the outer side of the slide bar (83), and the connecting spring (84) is located between the two sliders (82); The side of the slider (82) away from the connecting shell (81) is rotatably connected to a rotating support rod (85) through a hinge support, and one end of the two rotating support rods (85) is rotatably connected to a mounting seat (86) through a pin shaft. A clamping block (87) is fixedly connected between the two mounting seats (86), and a clamping pad is provided on the outside of the clamping block (87). A pressure sensor is installed between the clamping pad and the clamping block (87).

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