Bar cutting positioning mechanism

Abstract

The utility model discloses a bar cutting positioning mechanism and aims to overcome the defect that accuracy of cutting length is affected due to the fact that the position of a bar is prone to deviation in the cutting process. The bar positioning device comprises a positioning baffle and a pressing block, the positioning baffle is connected with a transverse moving seat arranged in a transverse moving mode, the pressing block is arranged in a lifting moving mode, the transverse moving seat moves to drive the positioning baffle to move transversely, the end of a bar abuts against the positioning baffle, and the pressing block is pressed on the outer wall of the bar to position the bar. According to the bar cutting and positioning mechanism, the cutting length can be determined and the bar can be positioned before the bar is cut, the bar is not prone to deviation in the bar cutting process, and the accuracy of the cutting length of the bar is guaranteed.

Description

Technical Field

[0001] The utility model relates to a sawing machine, more specifically, to a bar cutting and positioning mechanism. Background Art

[0002] Before a saw can cut a bar, the required length must be determined, the bar is positioned, and finally the saw blade is operated to cut. To facilitate determining the bar cutting length on the saw, many saws are equipped with a measuring device to measure the extended length of the bar to ensure the accuracy of the bar cutting length. However, after the bar cutting length is measured, the position of the bar is easily shifted during the subsequent cutting process, affecting the accuracy of the bar cutting length. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings, the utility model provides a bar cutting and positioning mechanism, which can determine the cutting length and position the bar before cutting. The bar is not easily offset during the bar cutting process, thereby ensuring the accuracy of the bar cutting length.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a rod cutting positioning mechanism, including a positioning baffle and a clamping block, the positioning baffle is connected to a transverse moving seat arranged for transverse movement, the clamping block is arranged for lifting and moving, the movement of the transverse moving seat drives the positioning baffle to move transversely, the end of the rod is pressed against the positioning baffle, and the clamping block is pressed against the outer wall of the rod to position the rod.

[0005] Before cutting the bar, the positioning plate is moved to the appropriate position. The front end of the bar is then pressed against the plate, which holds the bar in place. The plate is then moved to the desired length, ensuring precise positioning of the bar. The clamping block then moves downward and presses against the outer wall of the bar, securing it securely in place and preventing it from shifting.

[0006] The bar cutting and positioning mechanism of this patent application can determine the cutting length and position the bar before the bar is cut. The bar is not easily offset during the bar cutting process, thereby ensuring the accuracy of the bar cutting length.

[0007] Preferably, a slide is provided corresponding to the transverse seat, a linear slide rail is installed on the slide, a linear slider is provided on the transverse seat and the linear slide rail, and the linear slider is adaptively connected to the linear slide rail.

[0008] The traverse seat slides in coordination with the linear slide rails mounted on the carriage via the linear sliders arranged thereon, so that the movement of the traverse seat is accurate and reliable.

[0009] Preferably, a transverse motor is provided corresponding to the transverse seat, the output shaft of the transverse motor is connected to the transverse screw, a transverse screw sleeve is provided on the transverse seat, and the transverse screw and the transverse screw sleeve are adaptively connected.

[0010] The lateral movement motor drives the lateral movement screw to rotate, and the lateral movement of the lateral movement seat is achieved through the adaptation of the lateral movement screw and the lateral movement sleeve. The lateral movement drive of the lateral movement seat is accurate and reliable.

[0011] Preferably, the positioning baffle is connected to the rotating arm, and the rotating arm is rotatably mounted on the transverse seat.

[0012] The rotating arm is rotatably mounted on the transverse seat, and the positioning baffle is rotatable. When the bar needs to be limited, the positioning baffle is rotated downward to align with the end of the bar. When the bar is cut and needs to be unloaded, the positioning baffle is rotated upward to separate the positioning baffle from the bar. The bar will not hit the positioning baffle during unloading, preventing interference.

[0013] Preferably, a rotating piston cylinder is hinged between the rotating arm and the transverse seat.

[0014] The piston cylinder telescopic rod is rotated to telescope and move, driving the transfer arm to rotate.

[0015] In another solution, a rotating shaft is provided on the rotating arm, a rotating motor is installed on the transverse shift seat, and an output shaft of the rotating motor is connected to the rotating shaft.

[0016] The rotating motor drives the rotating shaft to rotate, thereby realizing the rotation of the transfer arm.

[0017] Preferably, a plurality of support rollers arranged at intervals are provided below the pressing block, and the rods are loaded on the support rollers.

[0018] The supporting roller supports the bar, and the supporting roller rotates to drive the bar to move and transport.

[0019] Preferably, an inverted V-shaped pressing surface is provided on the lower surface of the pressing block.

[0020] The inverted V-shaped pressing surface contacts and positions the outer wall of the bar reliably, thereby ensuring the pressing and positioning effect of the pressing block on the bar.

[0021] Preferably, two opposite mounting holes are provided on the pressing surface, a buffer block is installed in the mounting hole, a correction wheel and a correction motor are installed on the buffer block, the correction motor drives the correction wheel to rotate, and the correction wheel is exposed from the pressing surface.

[0022] Before the pressing surface contacts the bar's outer wall, the correcting wheel first contacts the bar's outer wall. If the bar's position deviates during this period, the correcting motor drives the correcting wheel to rotate, fine-tuning the bar's position. Once the bar is properly corrected, the pressing block continues to move downward, bringing the pressing surface into contact with the bar's outer wall. This pushes the buffer block, causing the correcting wheel to retract. Furthermore, the correcting motor also drives the correcting wheel to move the bar laterally.

[0023] Preferably, a limiting flange is provided at the opening of the mounting hole on the pressing surface, the buffer block is pressed against the limiting flange, a buffer spring and a spring seat are installed in the mounting hole, and the buffer spring is pressed between the spring seat and the buffer block.

[0024] The limiting flange has a limiting effect on the buffer block, and the buffer spring enables the buffer block to have a buffering effect.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The bar cutting and positioning mechanism of the present patent application can determine the cutting length and position the bar before the bar is cut. The bar is not easily offset during the bar cutting process, thereby ensuring the accuracy of the bar cutting length; (2) The rotating arm is rotatably mounted on the transverse seat, and the positioning baffle can be rotated. When it is necessary to limit the position of the bar, the positioning baffle is rotated downward to align with the end of the bar. When the bar is cut and needs to be unloaded, the positioning baffle is rotated upward to separate the positioning baffle from the bar, so that the bar will not touch the positioning baffle during the unloading process, thereby preventing interference; (3) Before the bar is positioned, deviation correction can be achieved to ensure the accuracy of positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of the present utility model.

[0027] Figure 2 It is a schematic diagram of the connection of the positioning baffle of the utility model.

[0028] Figure 3 This is a schematic diagram of the connection of the compression block of the present utility model.

[0029] Figure 4 It is a cross-sectional view of the compression block of Example 2 of the present utility model.

[0030] Figure 5 This is a schematic diagram of the connection of the rotating arm of Example 3 of the present utility model.

[0031] In the figure: 1. Positioning baffle, 2. Pressing block, 3. Transverse shift seat, 4. Support roller, 5. Saw seat, 6. Support, 7. Accommodating groove, 8. Lifting piston cylinder, 9. Pressing surface, 10. Slide, 11. Linear slide rail, 12. Linear slider, 13. Trapezoidal groove, 14. Transverse shift motor, 15. Transverse shift screw, 16. Transverse shift sleeve, 17. Rotating arm, 18. Rotating shaft, 19. Rotating seat, 20. Rotating piston cylinder, 21. Adapter, 22. Adapter seat, 23. Articulated ear, 24. Mounting hole, 25. Buffer block, 26. Correcting wheel, 27. Correcting motor, 28. Limiting flange, 29. Buffer spring, 30. Spring seat, 31. Mounting groove, 32. Connecting shaft, 33. Rotating motor. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0033] Example 1: A bar cutting and positioning mechanism (see attached Figure 1 To the attached Figure 3 ), including a positioning baffle 1 and a pressing block 2, the positioning baffle 1 is connected to a transverse seat 3 that is arranged for transverse movement. A number of support rollers 4 are arranged at intervals below the pressing block 2, and the rods are loaded on the support rollers 4. The rotation of the support rollers 4 drives the rods to move transversely. The pressing block 2 is arranged to move up and down, and the pressing block 2 is installed on the sawing machine seat 5. The sawing machine seat 5 is a rectangular frame structure, and the pressing block 2 is installed on the upper part of the sawing machine seat 5. A support 6 is installed on the sawing machine seat 5 corresponding to the pressing block 2, and a receiving groove 7 adapted to the pressing block 2 is provided on the lower end surface of the support 6, and the pressing block 2 is placed in the receiving groove 7. The pressing block 2 is connected to the telescopic rod of the lifting piston cylinder 8, and the lifting piston cylinder 8 is installed on the support 6. An inverted V-shaped pressing surface 9 is provided on the lower surface of the pressing block 2. The movement of the transverse seat 3 drives the positioning baffle 1 to move transversely, and the end of the rod is pressed against the positioning baffle 1, and the pressing block 2 is pressed on the outer wall of the rod to position the rod.

[0034] A carriage 10 is provided corresponding to the transverse seat 3. The carriage 10 is provided near the support roller 4. A linear slide 11 is installed on the slide 10. Two linear slides 11 are provided in parallel. Linear sliders 12 are provided on the transverse seat 3 in correspondence with the linear slides 11. The linear sliders 12 are adapted to be connected to the linear slides 11. Two linear sliders 12 are provided corresponding to each linear slide 11. Trapezoidal grooves 13 are provided on both sides of the linear slide 11. Raised strips are provided on the linear sliders 12 in correspondence with the trapezoidal grooves 13. The raised strips are adapted to the trapezoidal grooves 13, thereby achieving smooth sliding between the linear sliders 12 and the linear slides 11. The transverse seat 3 slides in accordance with the linear slides 11 installed on the carriage 10 through the linear sliders 12 provided thereon, so that the movement of the transverse seat 3 is accurate and reliable.

[0035] A traverse motor 14 is provided corresponding to the traverse seat 3. The traverse motor 14 is mounted at one end of the carriage 10. The output shaft of the traverse motor 14 is connected to a traverse screw 15. The traverse screw 15 is rotatably mounted on the carriage 10. A traverse screw sleeve 16 is provided on the traverse seat 3. The traverse screw 15 is adapted to be connected to the traverse screw sleeve 16. The traverse motor 14 drives the traverse screw 15 to rotate. Through the adaptation of the traverse screw 15 and the traverse screw sleeve 16, the traverse seat 3 is traversed. The traverse drive of the traverse seat 3 is accurate and reliable.

[0036] The positioning baffle 1 is connected to a rotating arm 17, which is rotatably mounted on the transverse shift seat 3. The rotating arm 17 is L-shaped, with one end of the rotating arm 17 connected to the positioning baffle 1 and the other end of the rotating arm 17 provided with a rotating shaft 18. Two rotating seats 19 are provided on the transverse shift seat 3, and both ends of the rotating shaft 18 are rotatably mounted on the two rotating seats 19.

[0037] A rotating piston cylinder 20 is hingedly connected between the rotating arm 17 and the traversing seat 3. The cylinder body of the rotating piston cylinder 20 is pivotally mounted on the rotating arm 17, while the telescopic rod of the rotating piston cylinder 20 is pivotally mounted on the traversing seat 3. The end of the telescopic rod of the rotating piston cylinder 20 is connected to an adapter 21, which is pivotally connected to an adapter seat 22 provided on the traversing seat 3. The rotating arm 17 is provided with two hinged ears 23, between which the rotating piston cylinder 20 is pivotally mounted. The telescopic rod of the rotating piston cylinder 20 is positioned above the rotating shaft 18.

[0038] Before cutting the rod, move the positioning baffle 1 to the appropriate position, and then push the front end of the rod onto the positioning baffle 1, and the positioning baffle 1 limits the rod. According to the length of the rod that needs to be cut, move the positioning baffle 1 to the matching position, thereby achieving accurate positioning of the cutting length of the rod. Then the clamping block 2 moves downward and presses on the outer wall of the rod to position the rod. At this time, the rod is reliably positioned to prevent the rod from being offset. The rotating arm 17 is rotatably mounted on the transverse seat 3, and the positioning baffle 1 can rotate. When it is necessary to limit the rod, the positioning baffle 1 is rotated downward to align with the end of the rod. When the rod is cut and needs to be unloaded, the positioning baffle 1 is rotated upward to separate the positioning baffle 1 from the rod, so that the rod will not touch the positioning baffle 1 during unloading, thereby preventing interference.

[0039] Example 2: A rod cutting and positioning mechanism (see attached Figure 1 To the attached Figure 4), including a positioning baffle 1 and a pressing block 2, the positioning baffle 1 is connected to a transverse seat 3 that is arranged for transverse movement. A number of support rollers 4 are arranged at intervals below the pressing block 2, and the rods are loaded on the support rollers 4. The rotation of the support rollers 4 drives the rods to move transversely. The pressing block 2 is arranged to move up and down, and the pressing block 2 is installed on the sawing machine seat 5. The sawing machine seat 5 is a rectangular frame structure, and the pressing block 2 is installed on the upper part of the sawing machine seat 5. A support 6 is installed on the sawing machine seat 5 corresponding to the pressing block 2, and a receiving groove 7 adapted to the pressing block 2 is provided on the lower end surface of the support 6, and the pressing block 2 is placed in the receiving groove 7. The pressing block 2 is connected to the telescopic rod of the lifting piston cylinder 8, and the lifting piston cylinder 8 is installed on the support 6. An inverted V-shaped pressing surface 9 is provided on the lower surface of the pressing block 2. The movement of the transverse seat 3 drives the positioning baffle 1 to move transversely, and the end of the rod is pressed against the positioning baffle 1, and the pressing block 2 is pressed on the outer wall of the rod to position the rod.

[0040] A carriage 10 is provided corresponding to the transverse seat 3. The carriage 10 is provided near the support roller 4. A linear slide 11 is installed on the slide 10. Two linear slides 11 are provided in parallel. Linear sliders 12 are provided on the transverse seat 3 in correspondence with the linear slides 11. The linear sliders 12 are adapted to be connected to the linear slides 11. Two linear sliders 12 are provided corresponding to each linear slide 11. Trapezoidal grooves 13 are provided on both sides of the linear slide 11. Raised strips are provided on the linear sliders 12 in correspondence with the trapezoidal grooves 13. The raised strips are adapted to the trapezoidal grooves 13, thereby achieving smooth sliding between the linear sliders 12 and the linear slides 11. The transverse seat 3 slides in accordance with the linear slides 11 installed on the carriage 10 through the linear sliders 12 provided thereon, so that the movement of the transverse seat 3 is accurate and reliable.

[0041] A traverse motor 14 is provided corresponding to the traverse seat 3. The traverse motor 14 is mounted at one end of the carriage 10. The output shaft of the traverse motor 14 is connected to a traverse screw 15. The traverse screw 15 is rotatably mounted on the carriage 10. A traverse screw sleeve 16 is provided on the traverse seat 3. The traverse screw 15 is adapted to be connected to the traverse screw sleeve 16. The traverse motor 14 drives the traverse screw 15 to rotate. Through the adaptation of the traverse screw 15 and the traverse screw sleeve 16, the traverse seat 3 is traversed. The traverse drive of the traverse seat 3 is accurate and reliable.

[0042] The positioning baffle 1 is connected to a rotating arm 17, which is rotatably mounted on the transverse shift seat 3. The rotating arm 17 is L-shaped, with one end of the rotating arm 17 connected to the positioning baffle 1 and the other end of the rotating arm 17 provided with a rotating shaft 18. Two rotating seats 19 are provided on the transverse shift seat 3, and both ends of the rotating shaft 18 are rotatably mounted on the two rotating seats 19.

[0043] A rotating piston cylinder 20 is hingedly connected between the rotating arm 17 and the traversing seat 3. The cylinder body of the rotating piston cylinder 20 is pivotally mounted on the rotating arm 17, while the telescopic rod of the rotating piston cylinder 20 is pivotally mounted on the traversing seat 3. The end of the telescopic rod of the rotating piston cylinder 20 is connected to an adapter 21, which is pivotally connected to an adapter seat 22 provided on the traversing seat 3. The rotating arm 17 is provided with two hinged ears 23, between which the rotating piston cylinder 20 is pivotally mounted. The telescopic rod of the rotating piston cylinder 20 is positioned above the rotating shaft 18.

[0044] Two opposing mounting holes 24 are provided on the pressing surface 9 of the pressing block 2. The two mounting holes 24 are respectively provided on the two inclined surfaces of the inverted V-shaped pressing surface 9. A buffer block 25 is installed in the mounting hole 24. A correction wheel 26 and a correction motor 27 are installed on the buffer block 25. The axes of the two correction wheels 26 are respectively parallel to the two inclined surfaces of the pressing surface 9. The correction motor 27 drives the correction wheel 26 to rotate, and the correction wheel 26 is exposed from the pressing surface 9. A limiting flange 28 is provided at the opening of the mounting hole 24 on the pressing surface 9. The buffer block 25 is pressed against the limiting flange 28. A buffer spring 29 and a spring seat 30 are installed in the mounting hole 24. The buffer spring 29 is pressed between the spring seat 30 and the buffer block 25. The spring seat 30 is threadedly connected to the mounting hole 24. The buffer block 25 is installed in the mounting hole 24 and can move axially. A mounting groove 31 is provided on the buffer block 25, a connecting shaft 32 is provided on the correcting wheel 26, two ends of the connecting shaft 32 are rotatably mounted on two opposite side walls of the mounting groove 31, a driven gear is provided on the connecting shaft 32, the correcting motor 27 is installed in the mounting groove 31, a driving gear is installed on the output shaft of the correcting motor 27, and the driving gear and the driven gear are engaged for transmission.

[0045] Before the pressing surface 9 contacts the outer wall of the bar, the correcting wheel 26 first contacts the outer wall of the bar. If the bar's position deviates during this period, the correcting motor 27 drives the correcting wheel 26 to rotate, achieving fine-tuning and correcting the bar's position. After the bar's deviation is corrected, the pressing block 2 continues to move downward, bringing the pressing surface 9 into contact with the outer wall of the bar. This pushes the buffer block 25, causing the correcting wheel 26 to retract. Furthermore, the rotation of the correcting wheel 26 driven by the correcting motor 27 also propels the bar's lateral movement.

[0046] Before cutting the rod, move the positioning baffle 1 to the appropriate position, and then push the front end of the rod onto the positioning baffle 1, and the positioning baffle 1 limits the rod. According to the length of the rod that needs to be cut, move the positioning baffle 1 to the matching position, thereby achieving accurate positioning of the cutting length of the rod. Then the clamping block 2 moves downward and presses on the outer wall of the rod to position the rod. At this time, the rod is reliably positioned to prevent the rod from being offset. The rotating arm 17 is rotatably mounted on the transverse seat 3, and the positioning baffle 1 can rotate. When it is necessary to limit the rod, the positioning baffle 1 is rotated downward to align with the end of the rod. When the rod is cut and needs to be unloaded, the positioning baffle 1 is rotated upward to separate the positioning baffle 1 from the rod, so that the rod will not touch the positioning baffle 1 during unloading, thereby preventing interference.

[0047] Example 3: A rod cutting and positioning mechanism (see attached Figure 5 ), including a positioning baffle 1 and a pressing block 2, the positioning baffle 1 is connected to a transverse seat 3 that is arranged for transverse movement. A number of support rollers 4 are arranged at intervals below the pressing block 2, and the rods are loaded on the support rollers 4. The rotation of the support rollers 4 drives the rods to move transversely. The pressing block 2 is arranged to move up and down, and the pressing block 2 is installed on the sawing machine seat 5. The sawing machine seat 5 is a rectangular frame structure, and the pressing block 2 is installed on the upper part of the sawing machine seat 5. A support 6 is installed on the sawing machine seat 5 corresponding to the pressing block 2, and a receiving groove 7 adapted to the pressing block 2 is provided on the lower end surface of the support 6, and the pressing block 2 is placed in the receiving groove 7. The pressing block 2 is connected to the telescopic rod of the lifting piston cylinder 8, and the lifting piston cylinder 8 is installed on the support 6. An inverted V-shaped pressing surface 9 is provided on the lower surface of the pressing block 2. The movement of the transverse seat 3 drives the positioning baffle 1 to move transversely, and the end of the rod is pressed against the positioning baffle 1, and the pressing block 2 is pressed on the outer wall of the rod to position the rod.

[0048] A carriage 10 is provided corresponding to the transverse seat 3. The carriage 10 is provided near the support roller 4. A linear slide 11 is installed on the slide 10. Two linear slides 11 are provided in parallel. Linear sliders 12 are provided on the transverse seat 3 in correspondence with the linear slides 11. The linear sliders 12 are adapted to be connected to the linear slides 11. Two linear sliders 12 are provided corresponding to each linear slide 11. Trapezoidal grooves 13 are provided on both sides of the linear slide 11. Raised strips are provided on the linear sliders 12 in correspondence with the trapezoidal grooves 13. The raised strips are adapted to the trapezoidal grooves 13, thereby achieving smooth sliding between the linear sliders 12 and the linear slides 11. The transverse seat 3 slides in accordance with the linear slides 11 installed on the carriage 10 through the linear sliders 12 provided thereon, so that the movement of the transverse seat 3 is accurate and reliable.

[0049] A traverse motor 14 is provided corresponding to the traverse seat 3. The traverse motor 14 is mounted at one end of the carriage 10. The output shaft of the traverse motor 14 is connected to a traverse screw 15. The traverse screw 15 is rotatably mounted on the carriage 10. A traverse screw sleeve 16 is provided on the traverse seat 3. The traverse screw 15 is adapted to be connected to the traverse screw sleeve 16. The traverse motor 14 drives the traverse screw 15 to rotate. Through the adaptation of the traverse screw 15 and the traverse screw sleeve 16, the traverse seat 3 is traversed. The traverse drive of the traverse seat 3 is accurate and reliable.

[0050] The positioning baffle 1 is connected to a pivoting arm 17, which is rotatably mounted on the traversing base 3. The pivoting arm 17 is L-shaped, with one end connected to the positioning baffle 1 and the other end provided with a rotating shaft 18. The traversing base 3 is provided with two rotating bases 19, with both ends of the rotating shaft 18 rotatably mounted on these two rotating bases 19. A rotating motor 33 is mounted on the traversing base 3, mounted on one of the rotating bases 19. The output shaft of the rotating motor 33 is connected to the rotating shaft 18. The rotating motor 33 drives the rotating shaft 18 to rotate, thereby achieving rotation of the transfer arm.

[0051] Before cutting the rod, move the positioning baffle 1 to the appropriate position, and then push the front end of the rod onto the positioning baffle 1, and the positioning baffle 1 limits the rod. According to the length of the rod that needs to be cut, move the positioning baffle 1 to the matching position, thereby achieving accurate positioning of the cutting length of the rod. Then the clamping block 2 moves downward and presses on the outer wall of the rod to position the rod. At this time, the rod is reliably positioned to prevent the rod from being offset. The rotating arm 17 is rotatably mounted on the transverse seat 3, and the positioning baffle 1 can rotate. When it is necessary to limit the rod, the positioning baffle 1 is rotated downward to align with the end of the rod. When the rod is cut and needs to be unloaded, the positioning baffle 1 is rotated upward to separate the positioning baffle 1 from the rod, so that the rod will not touch the positioning baffle 1 during unloading, thereby preventing interference.

[0052] The above-described embodiments are only preferred solutions of the present invention and do not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A bar cutting and positioning mechanism, characterized in that: It includes a positioning baffle and a pressing block. The positioning baffle is connected to a transverse moving seat that is set for transverse movement. The pressing block is set for lifting and movement. The movement of the transverse moving seat drives the positioning baffle to move transversely. The end of the rod is pressed against the positioning baffle, and the pressing block is pressed against the outer wall of the rod to position the rod.

2. A bar cutting and positioning mechanism according to claim 1, characterized in that: A slide is provided corresponding to the transverse seat, a linear slide rail is installed on the slide, a linear slider is provided on the transverse seat and the linear slide rail, and the linear slider is adapted to be connected with the linear slide rail.

3. A bar cutting and positioning mechanism according to claim 1, characterized in that: A transverse motor is correspondingly provided on the transverse seat, an output shaft of the transverse motor is connected to a transverse screw, a transverse screw sleeve is provided on the transverse seat, and the transverse screw and the transverse screw sleeve are adaptively connected.

4. A bar cutting and positioning mechanism according to claim 1, characterized in that: The positioning baffle is connected to the rotating arm, and the rotating arm is rotatably installed on the transverse seat.

5. A bar cutting and positioning mechanism according to claim 4, characterized in that: A rotating piston cylinder is hinged between the rotating arm and the transverse shift seat.

6. A bar cutting and positioning mechanism according to claim 4, characterized in that: A rotating shaft is arranged on the rotating arm, a rotating motor is installed on the transverse shift seat, and an output shaft of the rotating motor is connected with the rotating shaft.

7. The bar cutting and positioning mechanism according to claim 1, characterized in that: A plurality of support rollers arranged at intervals are arranged below the pressing block, and the rods are loaded on the support rollers.

8. A bar cutting and positioning mechanism according to any one of claims 1 to 7, characterized in that: An inverted V-shaped pressing surface is provided on the lower surface of the pressing block.

9. The bar cutting and positioning mechanism according to claim 8, characterized in that: Two opposite mounting holes are provided on the pressing surface, a buffer block is installed in the mounting hole, a correction wheel and a correction motor are installed on the buffer block, the correction motor drives the correction wheel to rotate, and the correction wheel is exposed from the pressing surface.

10. The bar cutting and positioning mechanism according to claim 9, characterized in that: A limiting flange is provided at the opening of the mounting hole on the pressing surface, the buffer block is pressed against the limiting flange, a buffer spring and a spring seat are installed in the mounting hole, and the buffer spring is pressed between the spring seat and the buffer block.

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