Steel bar equal-length cutting equipment for machinery

Abstract

The invention discloses equal-length cutting equipment for mechanical reinforcing steel bars and relates to the technical field of reinforcing steel bar machining, an equal-length cutting equipment body comprises a reciprocating pushing assembly, a rail clamping assembly and a cutting table, and the equal-length cutting equipment has the advantages that due to the fact that the left side face of a protruding block is inclined, a sliding rail rod can be extruded to move downwards, and a spring is compressed; when a sliding rail rod moves downwards, clamping arms can be driven to move downwards, the two clamping arms get close to each other until a steel bar is clamped to move rightwards till the sliding rail rod moves to the rightmost side of a compression groove, a spring in a compression state can push a sliding rod to move upwards, and at the moment, a rotating disc can drive a right sliding rod to move leftwards; and if yes, the sliding rod is driven to stretch along the inclined surface of the right side of the protruding block till entering the stretching groove, at the moment, the two clamping arms can stop clamping the reinforcing steel bar, the reinforcing steel bar can be driven to move and clamp at equal intervals by starting one driving motor, and the defects of two driving structures for clamping and moving at equal intervals of an existing device are overcome.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel bar processing, in particular to a steel bar equal-length cutting equipment for machinery. BACKGROUND

[0002] In the fields of building construction and mechanical manufacturing, steel bars are the core load-bearing and structural components, and their processing precision directly affects the engineering quality and equipment stability. Steel bar equal-length cutting is a key link in the steel bar processing process, so efficient and accurate steel bar equal-length cutting equipment is in great demand in the industry. However, the current mainstream steel bar equal-length cutting equipment for machinery still has many technical defects in driving structure design, cutting length adaptability, and operation convenience, which cannot meet the needs of modern production for efficient and flexible processing.

[0003] The existing steel bar cutting equipment needs two independent driving structures to control the steel bar clamping and equal-distance movement, which is high in cost and prone to action synchronization deviation, and has low automation. In addition, the existing steel bar equal-length cutting equipment needs to disassemble and modify multiple components to adjust the cutting length, which is cumbersome to operate and cannot quickly adapt to different needs. Therefore, we propose a steel bar equal-length cutting equipment for machinery. SUMMARY

[0004] The purpose of the present application is to provide a steel bar equal-length cutting equipment for machinery.

[0005] To achieve the above purpose, the present application provides the following technical solution: a steel bar equal-length cutting equipment for machinery, comprising an equal-length cutting equipment body, a steel bar, and a cutting machine for cutting the steel bar. The cutting machine is located on the right side of the equal-length cutting equipment body. The equal-length cutting equipment body comprises a reciprocating pushing assembly and a cutting table. The track clamping assembly is located on the right side of the reciprocating pushing assembly. The reciprocating pushing assembly comprises a rotating disc, a driving motor, an L-shaped support plate A, a variable track plate, and a driving circular shaft. The bottom surface of the L-shaped support plate A is connected with the top surface of the cutting table. The back surface of the L-shaped support plate A is connected with the surface of the driving motor. The output shaft of the front surface of the driving motor penetrates through the L-shaped support plate A and is connected with the back surface of the rotating disc. A plurality of adjustment grooves are arranged on the surface of the rotating disc. The inner wall of the adjustment groove is connected with the rear end surface of the driving circular shaft. The front surface of the variable track plate is provided with a variable track sliding groove. The inner wall of the variable track sliding groove is connected with the front end surface of the driving circular shaft in a sliding manner. The left side surface and the right side surface of the variable track plate are respectively connected with a left sliding rod and a right sliding rod.

[0006] As a further scheme of the present application: the equal-length cutting device body further comprises a track clamping assembly located on the right side of the reciprocating pushing assembly, the track clamping assembly comprises an L-shaped support plate B, a track plate, a sliding rail rod, a clamping arm and a dynamic sliding lock sleeve, the bottom surface of the L-shaped support plate B is connected with the top surface of the cutting table on the right side, the front surface of the L-shaped support plate B is connected with the back surface of the track plate, the front surface of the track plate is provided with a track groove, the inner wall of the track groove is in sliding connection with the surface of the sliding rail rod, the front surface of the sliding rail rod is connected with the back surface of the clamping arm, and the inner wall of the dynamic sliding lock sleeve is in sliding connection with the surface of the right sliding rod.

[0007] As a further scheme of the present application: a plurality of distance adjusting insertion holes are equidistantly formed on the surface of the right sliding rod, adjusting holes matched with the distance adjusting insertion holes are formed on the surface of the dynamic sliding lock sleeve, and the right sliding rod and the dynamic sliding lock sleeve are connected through the distance adjusting insertion holes and the adjusting holes matched with the distance adjusting insertion holes.

[0008] As a further scheme of the present application: an L-shaped auxiliary rod is connected to the top surface of the dynamic sliding lock sleeve on the left side, a sliding rod is connected to the top surface of the dynamic sliding lock sleeve on the right side, the sliding rod penetrates through the clamping arm and the L-shaped auxiliary rod, springs are connected between the surface of the dynamic sliding lock sleeve and the surface of the clamping arm, and the springs are located outside the sliding rod.

[0009] As a further scheme of the present application: the track groove comprises a compression groove, a stretching groove and a protrusion, the compression groove is located at the bottom of the stretching groove, and the protrusion is located between the compression groove and the stretching groove.

[0010] As a further scheme of the present application: a clamping block is connected to the front end of the clamping arm, and an anti-skid cloth is connected to the surface of the clamping block.

[0011] As a further scheme of the present application: the number of the track plate, the sliding rail rod and the clamping arm is two, and they are in geometrically symmetrical arrangement.

[0012] As a further scheme of the present application: two sliding rod connecting blocks and a steel bar limiting sleeve are arranged on the top surface of the cutting table, the inner walls of the two sliding rod connecting blocks are in sliding connection with the surfaces of the left sliding rod and the right sliding rod respectively, and the inner wall of the steel bar limiting sleeve is in sliding connection with the surface of the steel bar.

[0013] By using the above technical scheme, compared with the prior art, the present application has the following beneficial effects:

[0014] 1. The equal length cutting device for steel bars, which is characterized by the following: the reciprocating pushing assembly and the track clamping assembly are arranged, when equal length cutting of the steel bars is needed, the steel bar is first inserted through the steel bar limiting sleeve, until the right end port of the steel bar is located between the two clamping arms, then the driving motor is started, the driving motor rotates to drive the rotating disc to rotate, the rotating disc rotates to drive the driving circular shaft connected therewith to rotate, the driving circular shaft rotates around the center of the surface of the rotating disc, and rotates while sliding along the inner wall of the variable track sliding groove of the variable track plate, thereby driving the variable track plate to move left and right, at this time, the left slide rod and the right slide rod also move periodically in the horizontal direction, the right slide rod moves rightward to drive the dynamic sliding lock sleeve and the slide rail rod to move rightward, when the slide rail rod moves rightward, the left side of the protrusion is pressed, since the left side of the protrusion is inclined, the slide rail rod is pressed to move downward and compress the spring, the slide rail rod moves downward to drive the clamping arm to move downward, the two clamping arms move close to each other until the clamped steel bar moves rightward, until the slide rail rod moves to the rightmost side of the compression groove, the spring in the compression state pushes the slide rod to move upward, at this time, the rotating disc drives the right slide rod to move leftward, thereby driving the slide rod to stretch along the right side of the protrusion until entering the stretching groove, and moving leftward along the stretching groove, at this time, the two clamping arms stop clamping the steel bar, at this time, the cutting machine is started to cut the steel bar, at this time, the slide rod continues to move leftward until it slides to the leftmost side of the stretching groove, by the same principle, the spring in the stretching state drives the slide rod to move downward and press the left side of the protrusion, thereby driving the clamping arm to clamp the steel bar again, by starting one driving motor, the steel bar can be driven to move and clamp at equal intervals, the degree of automation is high, the defects of the two driving structures of the existing device for clamping and equal interval movement are avoided, and the economy of the device is greatly improved.

[0015] 2. The equal length cutting device for steel bars, which is characterized by the following: a plurality of adjusting grooves are arranged on the surface of the rotating disc at equal intervals, when different cutting lengths are needed, the driving circular shaft is connected in different adjusting grooves, then the track plate suitable for the target cutting length is replaced, so that the cutting length can be quickly replaced, after the adjusting groove is replaced, the rotation of the driving circular shaft changes the amplitude of the left and right periodic movement of the left slide rod and the right slide rod connected to the variable track plate, thereby the amplitude of the steel bar driven to move can be controlled, by simply adjusting the equal length cutting device body and the track plate, the length of the steel bar to be cut can be quickly adjusted, and the adaptability and use experience of the device are greatly improved.

[0016] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following specification, in some degree, will be obvious to those skilled in the art from the following description, or can be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1It is a three-dimensional schematic view of the medium-length cutting device and the steel bar body in the embodiment of the present application.

[0018] Figure 2 It is a three-dimensional schematic view of the medium-length cutting device body in the embodiment of the present application.

[0019] Figure 3 It is a three-dimensional schematic view of the rear side of the reciprocating pushing assembly in the embodiment of the present application.

[0020] Figure 4 It is a three-dimensional schematic view of the track clamping assembly in the embodiment of the present application.

[0021] Figure 5 It is Figure 4 It is a three-dimensional schematic view of the reciprocating pushing assembly in the embodiment of the present application.

[0022] Figure 6 It is a three-dimensional schematic view of the reciprocating pushing assembly in the embodiment of the present application.

[0023] Figure 7 It is a three-dimensional schematic view of the reciprocating pushing assembly in the embodiment of the present application.

[0024] Figure 8 It is a three-dimensional schematic view of the reciprocating pushing assembly in the embodiment of the present application.

[0025] In the figure: 1, medium-length cutting device body; 2, cutting machine; 3, reciprocating pushing assembly; 31, rotating disc; 311, adjusting groove; 32, driving motor; 33, L-shaped support plate A; 34, track changing plate; 341, track changing sliding groove; 35, driving circular shaft; 342, left sliding rod; 343, right sliding rod; 3431, distance adjusting jack; 3432, L-shaped auxiliary rod; 3433, sliding rod; 4, track clamping assembly; 41, L-shaped support plate B; 42, track plate; 421, track groove; 4211, compression groove; 4212, stretching groove; 4213, protruding block; 43, sliding rail rod; 44, clamping arm; 441, clamping block; 45, dynamic sliding lock sleeve; 451, adjusting hole; 46, spring; 5, sliding rod connecting block; 6, steel bar limiting sleeve; 7, steel bar. DETAILED DESCRIPTION

[0026] The specific embodiments of the present application will be further described in conjunction with the accompanying drawings, and it is to be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application.

[0027] In addition, the technical features involved in each of the embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0028] Please refer to the accompanying Figure 1 - the accompanying Figure 8The application discloses a mechanical reinforcing steel bar equal-length cutting equipment which comprises an equal-length cutting equipment body 1, a reinforcing steel bar 7 and a cutting machine 2 used for cutting the reinforcing steel bar 7, the cutting machine 2 is located at the right side of the equal-length cutting equipment body 1, the equal-length cutting equipment body 1 comprises a reciprocating pushing assembly 3 and a cutting table, a track clamping assembly 4 is located at the right side of the reciprocating pushing assembly 3, the reciprocating pushing assembly 3 comprises a rotating disc 31, a driving motor 32, an L-shaped support plate A 33, a variable track plate 34 and a driving circular shaft 35, the bottom surface of the L-shaped support plate A 33 is connected with the top surface of the cutting table, the back surface of the L-shaped support plate A 33 is connected with the surface of the driving motor 32, the output shaft in the front of the driving motor 32 penetrates through the L-shaped support plate A 33 and is connected with the back surface of the rotating disc 31, a plurality of adjusting grooves 311 which are arranged at equal intervals are formed in the surface of the rotating disc 31, the inner wall of the adjusting groove 311 is connected with the rear end surface of the driving circular shaft 35, a variable track sliding groove 341 is formed in the front of the variable track plate 34, the inner wall of the variable track sliding groove 341 is connected with the front end surface of the driving circular shaft 35 in a sliding mode, and the left side surface and the right side surface of the variable track plate 34 are respectively connected with a left sliding rod 342 and a right sliding rod 343.

[0029] In the first embodiment, the equal-length cutting equipment body 1 further comprises the track clamping assembly 4, the track clamping assembly 4 is located at the right side of the reciprocating pushing assembly 3, the track clamping assembly 4 comprises an L-shaped support plate B 41, a track plate 42, a sliding rail rod 43, a clamping arm 44 and a dynamic sliding lock sleeve 45, the bottom surface of the L-shaped support plate B 41 is connected with the right side of the top surface of the cutting table, the front surface of the L-shaped support plate B 41 is connected with the back surface of the track plate 42, a track groove 421 is formed in the front surface of the track plate 42, the inner wall of the track groove 421 is connected with the surface of the sliding rail rod 43 in a sliding mode, the front surface of the sliding rail rod 43 is connected with the back surface of the clamping arm 44, the inner wall of the dynamic sliding lock sleeve 45 is connected with the surface of the right sliding rod 343 in a sliding mode, a plurality of distance adjusting insertion holes 3431 are formed in the surface of the right sliding rod 343 at equal intervals, an adjusting hole 451 which is matched with the distance adjusting insertion hole 3431 is formed in the surface of the dynamic sliding lock sleeve 45, the right sliding rod 343 and the dynamic sliding lock sleeve 45 are connected through the distance adjusting insertion hole 3431 and the adjusting hole 451 in a screwing mode, an L-shaped auxiliary rod 3432 is connected with the top surface of the right sliding rod 343 at the left side, a sliding rod 3433 is connected with the top surface of the right sliding rod 343 at the right side, the sliding rod 3433 penetrates through the clamping arm 44 and the L-shaped auxiliary rod 3432, a spring 46 is connected between the surface of the right sliding rod 343 and the surface of the clamping arm 44, and the spring 46 is located outside the sliding rod 3433.

[0030] Specifically, in the actual production process, first, the worker needs manpower or through mechanical device cooperation to pass the reinforcing steel bar 7 through the reinforcing steel bar limiting sleeve 6 and continue to push to the right until the right surface of the reinforcing steel bar 7 is flush with the right surface of the clamping arm 44, and then start the driving motor 32 to drive the reinforcing steel bar 7 to move. In the actual production process, since the reinforcing steel bar 7 is not clamped after moving a cycle, multiple reinforcing steel bar limiting sleeves 6 or manual fixing at the tail of the reinforcing steel bar 7 can be selected to avoid the reinforcing steel bar 7 shaking when the cutting machine 2 cuts the reinforcing steel bar 7, which affects the cutting precision. Under the condition of allowing, the cutting machine 2 can be replaced by a hydraulic cutting device, which can shorten the cutting time and reduce the shaking amplitude during cutting, thereby improving the cutting efficiency.

[0031] In embodiment two, the track groove 421 includes a compression groove 4211, a stretching groove 4212, and a protrusion 4213. The compression groove 4211 is located at the bottom of the stretching groove 4212, and the protrusion 4213 is located between the compression groove 4211 and the stretching groove 4212. The clamping arm 44 is connected with a clamping block 441 at the front end, and the surface of the clamping block 441 is connected with a non-slip cloth. The number of the track plate 42, the slide rail rod 43, and the clamping arm 44 is two, and they are arranged in geometric symmetry. Two slide rod connecting blocks 5 and reinforcing steel bar limiting sleeves 6 are arranged on the top surface of the cutting table. The inner walls of the two slide rod connecting blocks 5 are respectively connected with the surfaces of the left slide rod 342 and the right slide rod 343 in a sliding manner. The inner wall of the reinforcing steel bar limiting sleeve 6 is connected with the surface of the reinforcing steel bar 7 in a sliding manner.

[0032] Specifically, in the actual production process, high-quality springs 46 are required for the springs 46. Since the springs 46 are consumable parts, they need to be checked regularly for use, and the springs 46 need to be replaced according to the working intensity and duration. In actual use, the lengths of the compression groove 4211 and the stretching groove 4212 are twice the horizontal displacement amplitude of the driving circular shaft 35, i.e., twice the distance from the driving circular shaft 35 to the center of the surface of the rotating disc 31. When different cutting lengths need to be adjusted, the track plate 42 needs to be replaced. When the cutting length needs to be lengthened, the driving circular shaft 35 is connected in the adjusting groove 311 far from the center of the surface of the rotating disc 31. When the cutting length needs to be shortened, the driving circular shaft 35 needs to be adjusted to the adjusting groove 311 close to the center of the surface of the rotating disc 31. The adjusting hole 451 on the dynamic sliding lock sleeve 45 can quickly adjust the position of the slide rail rod 43 when different track plates 42 are replaced, so that the device can quickly enter the normal working state after adjusting the cutting length.

[0033] Working principle:

[0034] First, the worker needs manpower or by mechanical device cooperation to pass the reinforcing steel bars 7 through the reinforcing steel bars limiting sleeve 6 and continue to push to the right until the right surface of the reinforcing steel bars 7 is flush with the right surface of the clamping arm 44, then start the drive motor 32, the drive motor 32 rotates to drive the rotating disc 31 to rotate, the rotating disc 31 rotates to drive the driving circular shaft 35 connected thereto to rotate, the driving circular shaft 35 will rotate around the surface center of the rotating disc 31, and will slide along the inner wall of the variable rail sliding groove 341 opened in the variable rail plate 34 while rotating, thereby driving the variable rail plate 34 to move left and right, at this time the left slide rod 342 and the right slide rod 343 also move periodically in the horizontal direction, the right slide rod 343 moves to the right while driving the dynamic sliding lock sleeve 45 and the slide rail rod 43 to move to the right, the slide rail rod 43 moves to the right, its surface will extrude the left side of the protrusion 4213, because the left side of the protrusion 4213 is inclined, thereby extruding the slide rail rod 43 to move downward and compress the spring 46, the slide rail rod 43 moves downward will drive the clamping arm 44 to move downward, the two clamping arms 44 move close to each other until the reinforcing steel bars 7 move to the right, until the slide rail rod 43 moves to the rightmost side of the compression groove 4211, the spring 46 in the compression state will push the sliding rod 3433 to move upward, at this time the rotating disc 31 will drive the right slide rod 343 to move to the left, then drive the sliding rod 3433 to stretch along the inclined surface of the protrusion 4213 until it enters the stretching groove 4212 and moves left along the stretching groove 4212, at this time the two clamping arms 44 will end the clamping of the reinforcing steel bars 7, at this time the cutting machine 2 is started to cut the reinforcing steel bars 7, at this time the sliding rod 3433 continues to move to the left until it slides to the leftmost side of the stretching groove 4212, by the same principle, the spring 46 in the stretching state will drive the sliding rod 3433 to move downward and extrude the left side of the protrusion 4213, thereby driving the clamping arm 44 to clamp the reinforcing steel bars 7 again, when different cutting lengths need to be adjusted, only need to connect the driving circular shaft 35 in different adjustment grooves 311, then replace the track plate 42 that matches the target cutting length, so that the purpose of quickly replacing the cutting length can be achieved, after replacing the adjustment groove 311, the rotation of the driving circular shaft 35 changes the amplitude of the left and right periodic movement of the left slide rod 342 and the right slide rod 343 connected on the variable rail plate 34, thereby being able to control the amplitude of driving the reinforcing steel bars 7 to move, by simply adjusting the equal length cutting equipment body 1 and the track plate 42, the length of the reinforcing steel bars 7 that needs to be cut can be quickly adjusted, thus the whole working process is completed.

[0035] The above front, back, left, right, up and down are based on the Figure 1 of the drawings.

[0036] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the scope of protection of the application.

[0037] The embodiments of the application described above in conjunction with the drawings are detailed, but the application is not limited to the described embodiments.

[0038] For those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the application, and still fall within the scope of protection of the application.

Claims

1. A mechanical reinforcement equal length cutting apparatus comprising an equal length cutting apparatus body (1), a reinforcement (7) and a cutting machine (2) for cutting the reinforcement (7), said cutting machine (2) being located on the right side of the equal length cutting apparatus body (1), characterized by: The equal-length cutting device body (1) comprises a reciprocating pushing assembly (3) and a cutting table, the reciprocating pushing assembly (3) comprises a rotating disc (31), a driving motor (32), an L-shaped support plate A (33), a variable rail plate (34) and a driving circular shaft (35), the bottom surface of the L-shaped support plate A (33) is connected with the top surface of the cutting table, the back surface of the L-shaped support plate A (33) is connected with the surface of the driving motor (32), the output shaft of the front surface of the driving motor (32) penetrates through the L-shaped support plate A (33) and is connected with the back surface of the rotating disc (31), a plurality of adjusting grooves (311) are arranged on the surface of the rotating disc (31) at equal intervals, the inner wall of the adjusting groove (311) is connected with the rear end surface of the driving circular shaft (35), the front surface of the variable rail plate (34) is provided with a variable rail sliding groove (341), the inner wall of the variable rail sliding groove (341) is connected with the front end surface of the driving circular shaft (35) in a sliding manner, and the left side surface and the right side surface of the variable rail plate (34) are respectively connected with a left sliding rod (342) and a right sliding rod (343).

2. A mechanical reinforcing bar equal length cutting apparatus as claimed in claim 1, wherein: The equal-length cutting device body (1) further comprises a track clamping assembly (4), the track clamping assembly (4) is located on the right side of the reciprocating pushing assembly (3), and the track clamping assembly (4) comprises an L-shaped support plate B (41), a track plate (42), a sliding rail rod (43), a clamping arm (44) and a dynamic sliding lock sleeve (45).

3. A mechanical reinforcing bar equal length cutting apparatus as claimed in claim 2, wherein: The bottom surface of the L-shaped support plate B (41) is connected with the right side of the top surface of the cutting table, the front surface of the L-shaped support plate B (41) is connected with the back surface of the track plate (42), the front surface of the track plate (42) is provided with a track groove (421), the inner wall of the track groove (421) is connected with the surface of the sliding rail rod (43) in a sliding manner, the front surface of the sliding rail rod (43) is connected with the back surface of the clamping arm (44), and the inner wall of the dynamic sliding lock sleeve (45) is connected with the surface of the right sliding rod (343) in a sliding manner.

4. A mechanical reinforcing bar equal length cutting apparatus as claimed in claim 2, wherein: A plurality of distance adjusting insertion holes (3431) are arranged on the surface of the right sliding rod (343) at equal intervals, the surface of the dynamic sliding lock sleeve (45) is provided with distance adjusting holes (451) matched with the distance adjusting insertion holes (3431), and the right sliding rod (343) and the dynamic sliding lock sleeve (45) are connected through the distance adjusting insertion holes (3431) and the distance adjusting holes (451) by means of bolts.

5. A mechanical reinforcing bar equal length cutting apparatus as claimed in claim 2, wherein: An L-shaped auxiliary rod (3432) is connected to the left side of the top surface of the dynamic sliding lock sleeve (45), a sliding rod (3433) is connected to the right side of the top surface of the dynamic sliding lock sleeve (45), the sliding rod (3433) penetrates through the clamping arm (44) and the L-shaped auxiliary rod (3432), springs (46) are arranged between the surface of the dynamic sliding lock sleeve (45) and the surface of the clamping arm (44), and the springs (46) are located outside the sliding rod (3433). The track groove (421) comprises a compression groove (4211), a stretching groove (4212) and a protrusion (4213), the compression groove (4211) is located at the bottom of the stretching groove (4212), and the protrusion (4213) is located between the compression groove (4211) and the stretching groove (4212).

6. A mechanical reinforcing bar equal length cutting apparatus as claimed in claim 2, wherein: The front end of the clamping arm (44) is connected with a clamping block (441), and the surface of the clamping block (441) is connected with an anti-skid cloth.

7. A mechanical reinforcing bar equal length cutting apparatus as claimed in claim 2, wherein: The number of the track plates (42), the slide rail rods (43) and the clamping arms (44) is two, and they are arranged in geometric symmetry.

8. A mechanical reinforcing bar equal length cutting apparatus as claimed in claim 1, wherein: Two slide rod connecting blocks (5) and a steel bar limiting sleeve (6) are arranged on the top surface of the cutting table, the inner walls of the two slide rod connecting blocks (5) are respectively connected with the surfaces of the left slide rod (342) and the right slide rod (343) in a sliding mode, and the inner wall of the steel bar limiting sleeve (6) is connected with the surface of the steel bar (7) in a sliding mode.

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