A steel billet cutting device and usage method for steel pipe manufacturing

Abstract

The present invention relates to the field of billet cutting, and specifically to a billet cutting device and a using method for steel pipe manufacturing, including a base. On the left side of the top of the base, there is a fixedly connected billet conveying support. In the middle position of the top of the base, there is a slidably connected annular support. On the right side of the top of the base, there is a slidably connected positioning support. On the surface of the annular support, there is a movably connected cutting mechanism. Between the surface of the positioning support and the annular support, there is an adjusting mechanism that cooperates with the cutting mechanism. This billet cutting device for steel pipe manufacturing consists of a cutting mechanism and an adjusting mechanism. When the steel pipe blank on the billet conveying support passes through the annular support and is restricted at the side wall position of the positioning support, under the action of the cutting mechanism, the saw blade rotates along the annular support and slowly moves towards the center position of the steel pipe blank for cutting processing, reducing the contact area during the cutting process between the saw blade and the steel pipe blank, avoiding the generation of high temperature on the surface of the saw blade, and reducing the wear of the saw blade.

Description

Technical Field

[0001] The present invention relates to the field of billet cutting, and specifically to a billet cutting device and a using method for steel pipe manufacturing. Background Technique

[0002] For steel pipe production, a whole billet needs to be cut into required lengths by a billet cutting device, and then subsequent production and processing are carried out;

[0003] The existing patent (publication number: CN114734094A) discloses a seamless steel pipe production technology field, specifically a billet cutting device for seamless steel pipe manufacturing, including: a billet cutting machine frame, a moving circumferential cutting mechanism, a feedback feeding section mechanism, and a displacement measuring component fixedly installed at one end of the billet cutting machine frame. In the process of implementing this solution, the following problems in the prior art are found to have not been well solved: 1. When using this steel pipe cutting device, after the cutting saw cuts into the billet, the cutting saw rotates along the track of the guide rail frame for cutting. At this time, the contact area between the cutting saw and the billet during the cutting process is large, and the heat generation during the cutting process is serious, affecting the service life of the cutting saw; 2. During the cutting process of the cutting saw on the billet, burrs will be generated at the cutting end face position of the billet, and it is difficult for this device to clean the burrs on the billet end face after cutting, affecting the subsequent processing quality of the steel pipe. Summary of the Invention

[0004] The purpose of the present invention is to provide a billet cutting device and a using method for steel pipe manufacturing to solve the problems raised in the above background technique: 1. Some existing billet cutting devices generate serious heat during use, affecting the service life; 2. After some existing billet cutting devices cut the billet, it is difficult to clean the burrs at the billet end face position. To achieve the above purpose, the present invention provides the following technical solution: A billet cutting device for steel pipe manufacturing, including a base, a billet conveying support is fixedly connected to the left side of the top of the base, a circular support is slidably connected to the middle position of the top of the base, and a positioning support is slidably connected to the right side of the top of the base;

[0005] A cutting mechanism is movably connected to the surface of the circular support, an adjusting mechanism that cooperates with the cutting mechanism is movably connected between the surface of the positioning support and the circular support, and the bottom of the adjusting mechanism is fixedly connected to the top of the base.

[0006] Preferably, the cutting mechanism includes a circular guide groove, the circular guide groove is opened on the left side of the circular support, an L-shaped support is slidably connected to the inside of the circular guide groove, a transmission motor is fixedly connected to the right side of the L-shaped support, a gear rod is fixedly connected to the rotating end of the transmission motor, and an adjusting sleeve is movably connected to one end of the gear rod;

[0007] The inner ring of the annular bracket is fixedly connected with a toothed ring, the inner ring of the toothed ring meshes with the surface of the gear rod, the right side of the annular bracket is fixedly connected with a spiral guide groove, and a guide rod is slidably connected inside the spiral guide groove. One end of the guide rod is fixedly connected to the side wall of the adjusting sleeve;

[0008] An installation groove is provided on the inner wall of the adjusting sleeve. A groove is provided on the left side of the inner wall of the installation groove. A cutting motor is fixedly connected inside the groove. The rotating end of the cutting motor is fixedly connected with a rotating rod. A saw disc is fixedly sleeved in the middle of the rotating rod. The right end of the rotating rod is rotatably connected to the right side of the inner wall of the installation groove;

[0009] Both sides of the rotating rod are movably sleeved with grinding plates. Both sides of the saw disc are fixedly connected with pressing springs that cooperate with the grinding plates. The two pressing springs correspond to the two grinding plates one by one;

[0010] The top of the adjusting sleeve is vertically movably inserted with a U-shaped connecting rod. The bottom of the U-shaped connecting rod is symmetrically fixedly connected with U-shaped pressing plates. The two U-shaped pressing plates correspond to the two grinding plates one by one. The top of the U-shaped connecting rod is fixedly connected with an arc-shaped block that cooperates with the adjusting mechanism. A return spring is movably sleeved on the upper part of the U-shaped connecting rod;

[0011] The inner wall of the installation groove is symmetrically fixedly connected with triangular adjusting blocks. The two triangular adjusting blocks correspond to the two grinding plates one by one.

[0012] Preferably, a sliding groove is provided at one end of the adjusting sleeve close to the gear rod. One end of the gear rod is fixedly connected with a sliding block. The gear rod is slidably connected inside the sliding groove through the sliding block. The cross section of the sliding groove is set as a T shape.

[0013] Preferably, both sides of the middle of the saw disc are fixedly connected with spring sleeves. The pressing spring is fixedly connected inside the spring sleeve. One end of the pressing spring far away from the spring sleeve is fixedly connected with a pressing ring. The side wall of the pressing ring abuts against the side wall of the adjacent grinding plate;

[0014] Anti-slip pads are provided on the sides of the grinding plates opposite to the adjacent pressing rings.

[0015] Preferably, the side of the U-shaped pressing plate close to the grinding plate is set as an inclined surface. The U-shaped pressing plate and the center of the rotating rod are arranged on the same straight line.

[0016] Preferably, the adjusting mechanism includes electric telescopic rods. There are two electric telescopic rods. The two electric telescopic rods are symmetrically fixedly connected to the right side of the top of the base. The movable ends of the two electric telescopic rods are respectively fixedly connected to both sides of the positioning bracket;

[0017] Both sides of the lower part of the annular support are provided with round holes. The left ends of the two electric telescopic rods are respectively movably inserted into the two round holes. The left end of the electric telescopic rod penetrates through the annular support and is fixedly connected with a retaining ring. The left side of the electric telescopic rod is fixedly sleeved with a limit ring, and the side wall of the limit ring is lapped with the side wall of the annular support;

[0018] A conical ring adjusting support matched with the cutting mechanism is arranged between the annular support and the positioning support, and the bottom of the conical ring adjusting support is fixedly connected to the top of the base.

[0019] Preferably, electric push rods are symmetrically and fixedly connected to the right side of the positioning support, and the movable ends of the electric push rods are fixedly connected with arc-shaped clamping blocks;

[0020] A discharge hole is arranged in the middle of the positioning support. A discharge guide plate is arranged inside the discharge hole. The bottom of the discharge guide plate is fixedly connected with a support leg, and the bottom of the support leg is fixedly connected to the top of the base.

[0021] A method for using a steel billet cutting device for steel pipe manufacturing includes the following steps:

[0022] S1. During use, start the steel billet conveying support to convey the steel pipe billet towards the positioning annular support and the positioning support. When the steel pipe billet moves to the position of the positioning support, start the electric push rod to drive the arc-shaped clamping block to clamp the steel pipe billet, then start the cutting motor to drive the saw blade to rotate, and at the same time start the transmission motor to drive the gear rod to rotate, so that the gear rod meshes with the toothed ring on the annular support for transmission;

[0023] S2. As the gear rod rotates, the L-shaped support slides along the circular guide groove track on the side wall of the annular support, and the rotating gear rod moving along the circumference of the circular guide groove drives the adjusting sleeve to move synchronously. During this process, the guide rod on the adjusting sleeve slides along the track of the spiral guide groove, so that the adjusting sleeve moves gradually towards the center of the annular support while moving along the circumference of the annular support, and the rotating saw blade cuts the steel pipe billet during the synchronous movement with the adjusting sleeve;

[0024] S3. After the steel pipe blank is cut, the drive motor is turned off. At this time, the electric telescopic rod is started to drive the positioning bracket to move to the right, so that the steel pipe blank clamped on the positioning bracket moves to the right. At the same time, the electric telescopic rod pulls the annular bracket to move horizontally to the right through the retaining ring. Since the adjusting sleeve moves to the limit position in the direction of the center of the annular bracket at this time, and the arc-shaped block at the end of the adjusting sleeve moving horizontally to the right contacts the inner ring of the conical ring adjusting bracket at the top of the base, the arc-shaped block is pressed and drives the U-shaped connecting rod to move into the interior of the adjusting sleeve. At this time, the U-shaped pressing plate on the U-shaped connecting rod presses against the side wall position of the corresponding grinding plate, so that the grinding plate moves horizontally on the rotating rod and fits against the side wall of the saw blade. The rotating saw blade drives the grinding plate to rotate synchronously, so that the grinding plates on both sides of the saw blade respectively grind the ends of the steel pipe blank between the steel billet conveying bracket and the positioning bracket;

[0025] S4. After the grinding of the steel pipe blank is completed, the electric telescopic rod resets. At this time, the return spring drives the U-shaped connecting rod to reset, and the drive motor drives the gear rod to reverse, so that the adjusting sleeve resets to prepare for the next cutting of the steel pipe blank.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] In the present invention, through the coordinated use of components such as the steel billet conveying bracket, the annular bracket and the cutting mechanism, after the steel pipe blank on the steel billet conveying bracket passes through the annular bracket and is restricted at the side wall position of the positioning bracket, under the action of the cutting mechanism, the saw blade rotates along the annular bracket and slowly moves towards the center position of the steel pipe blank for cutting processing, reducing the contact area during the cutting process between the saw blade and the steel pipe blank, avoiding the generation of high temperature on the surface of the saw blade, reducing the wear of the saw blade, improving the service life of the saw blade, and improving the cutting quality.

[0028] In the present invention, through the coordinated use of components such as the positioning bracket, the cutting mechanism and the adjusting mechanism, after the steel pipe blank is cut, under the coordination of the adjusting mechanism and the cutting mechanism, the grinding plate inside the adjusting sleeve rotates with the saw blade. At this time, during the rotation of the saw blade, the two grinding plates grind the ends of the steel pipe blank on the steel billet conveying bracket and the positioning bracket to clean the burrs, further improving the regularity of the end face of the steel pipe blank after cutting and improving the quality of the subsequent processing of the steel pipe.

[0029] In the present invention, through the coordinated use of components such as the positioning bracket and the adjusting mechanism, the steel pipe blank is clamped and then cut, reducing the vibration generated during the processing, improving the cutting quality, and at the same time, the clamped steel pipe blank can ensure the stability during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a side view of the positions of the annular bracket and the positioning bracket of the present invention;

[0031] Figure 2 For the present invention Figure 1 An enlarged view of the structure at position A in the present invention;

[0032] Figure 3 A side view of the partial position of the annular bracket and the conical ring adjusting bracket of the present invention;

[0033] Figure 4 A side view of the partial position of the annular bracket and the annular guide groove of the present invention;

[0034] Figure 5 For the present invention Figure 4 An enlarged view of the structure at position B in the present invention;

[0035] Figure 6 A side sectional view of the partial position of the annular bracket and the adjusting sleeve of the present invention;

[0036] Figure 7 A sectional view of the partial position of the adjusting sleeve and the mounting groove of the present invention;

[0037] Figure 8 A front sectional view of the partial position of the adjusting sleeve and the saw blade of the present invention;

[0038] Figure 9 For the present invention Figure 8 An enlarged view of the structure at position C in the present invention;

[0039] Figure 10 A side view of the partial position of the saw blade and the grinding plate of the present invention;

[0040] Figure 11 A side view of the partial position of the grinding plate and the compression spring of the present invention;

[0041] Figure 12 A side view of the position of the adjusting sleeve and the guide rod of the present invention;

[0042] Figure 13 A side view of the partial position of the triangular adjusting block and the grinding plate of the present invention;

[0043] Figure 14 A side view of the conical ring adjusting bracket of the present invention.

[0044] In the figure: 1. Base; 2. Billet conveying support; 3. Ring-shaped support; 4. Positioning support; 5. Cutting mechanism; 501. Ring-shaped guide groove; 502. L-shaped support; 503. Driving motor; 504. Gear rod; 505. Adjusting sleeve; 506. Tooth ring; 507. Spiral guide groove; 508. Guide rod; 509. Installation groove; 510. Groove; 511. Cutting motor; 512. Rotating rod; 513. Saw disc; 514. Grinding plate; 515. Extrusion spring; 516. U-shaped connecting rod; 517. U-shaped extrusion plate; 518. Arc-shaped block; 519. Return spring; 520. Triangular adjusting block; 6. Adjusting mechanism; 601. Electric telescopic rod; 602. Round hole; 603. Retaining ring; 604. Limit ring; 605. Cone ring adjusting bracket. Specific embodiments

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] Please refer to Figures 1 to 14 , the present invention provides a technical solution: a billet cutting device for steel pipe manufacturing, including a base 1. A billet conveying support 2 is fixedly connected to the left side of the top of the base 1. A ring-shaped support 3 is slidably connected to the middle position of the top of the base 1. A positioning support 4 is slidably connected to the right side of the top of the base 1. It should be noted that: the billet conveying support 2 can convey steel pipes, and the billet conveying support 2 uses a conveying support in the prior art.

[0047] The surface of the ring-shaped support 3 is movably connected with a cutting mechanism 5. Between the surface of the positioning support 4 and the ring-shaped support 3, there is an adjusting mechanism 6 that cooperates with the cutting mechanism 5. The bottom of the adjusting mechanism 6 is fixedly connected to the top of the base 1.

[0048] In this embodiment, as Figure 1 and Figure 2 shown, the cutting mechanism 5 includes a ring-shaped guide groove 501. The ring-shaped guide groove 501 is opened on the left side of the ring-shaped support 3. An L-shaped support 502 is slidably connected inside the ring-shaped guide groove 501. A driving motor 503 is fixedly connected to the right side of the L-shaped support 502. A gear rod 504 is fixedly connected to the rotating end of the driving motor 503. One end of the gear rod 504 is movably connected with an adjusting sleeve 505. It should be noted that: the cross-section of the ring-shaped guide groove 501 is set as a T shape. A ball is provided on the surface of the L-shaped support 502 close to one end of the ring-shaped guide groove 501. Through the provision of the ball, the frictional resistance during the sliding of the L-shaped support 502 inside the ring-shaped guide groove 501 is reduced.

[0049] A toothed ring 506 is fixedly connected to the inner ring of the annular bracket 3. The inner ring of the toothed ring 506 meshes with the surface of the gear rod 504. A spiral guide groove 507 is fixedly connected to the right side of the annular bracket 3. A guide rod 508 is slidably connected inside the spiral guide groove 507. One end of the guide rod 508 is fixedly connected to the side wall of the adjusting sleeve 505. It should be noted that: the sliding groove in the middle of the spiral guide groove 507 can be set to a T-shaped cross-section similar to the annular guide groove 501, which can ensure the stability of the sliding of the guide rod 508 while enabling the guide rod 508 to slide inside the spiral guide groove 507.

[0050] An installation groove 509 is formed in the inner wall of the adjusting sleeve 505. A groove 510 is formed in the left side of the inner wall of the installation groove 509. A cutting motor 511 is fixedly connected inside the groove 510. A rotating rod 512 is fixedly connected to the rotating end of the cutting motor 511. A saw disk 513 is fixedly sleeved in the middle of the rotating rod 512. The right end of the rotating rod 512 is rotatably connected to the right side of the inner wall of the installation groove 509.

[0051] Polishing plates 514 are movably sleeved on both sides of the rotating rod 512. Pressing springs 515 that cooperate with the polishing plates 514 are fixedly connected to both sides of the saw disk 513. The two pressing springs 515 correspond to the two polishing plates 514 one by one. It should be noted that: the pressing spring 515 presses the polishing plate 514 to separate from the saw disk 513 to prevent the saw disk 513 from driving the polishing plate 514 to rotate; when the polishing plate 514 fits against the side wall of the saw disk 513, the saw disk 513 can drive the polishing plate 514 to rotate synchronously.

[0052] A U-shaped connecting rod 516 is vertically movably inserted into the top of the adjusting sleeve 505. U-shaped pressing plates 517 are symmetrically fixedly connected to the bottom of the U-shaped connecting rod 516. The two U-shaped pressing plates 517 correspond to the two polishing plates 514 one by one. An arc-shaped block 518 that cooperates with the adjusting mechanism 6 is fixedly connected to the top of the U-shaped connecting rod 516. A return spring 519 is movably sleeved on the upper part of the U-shaped connecting rod 516. It should be noted that: the return spring 519 is arranged between the bottom of the arc-shaped block 518 and the top of the adjusting sleeve 505; when the arc-shaped block 518 is pressed by the adjusting mechanism 6, the arc-shaped block 518 drives the U-shaped connecting rod 516 and the U-shaped pressing plate 517 to move, so that the U-shaped pressing plate 517 presses the polishing plate 514 to move towards the side wall of the saw disk 513.

[0053] The inner walls of the installation grooves 509 are symmetrically and fixedly connected with triangular adjusting blocks 520, and the two triangular adjusting blocks 520 correspond to the two grinding plates 514 one by one. It should be noted that: on the side of the grinding plate 514 close to the triangular adjusting block 520, a triangular magnetic block is fixedly connected, and the triangular adjusting block 520 is also set as a magnetic block. The magnetic poles of the triangular magnetic block and the triangular adjusting block 520 are opposite. When the grinding plate 514 approaches the position of the triangular adjusting block 520, it will deflect; when the U-shaped pressing plate 517 releases the pressing on the grinding plate 514, the compression spring 515 elastically resumes to press the grinding plate 514 to move towards the corresponding triangular adjusting block 520. At this time, the side wall of the grinding plate 514 contacts the inclined surface of the triangular adjusting block 520, causing the grinding plate 514 to rotate on the surface of the rotating rod 512 and lap on the top surface of the triangular adjusting block 520, preventing the reset triangular adjusting block 520 from protruding from the bottom of the installation groove 509; when the grinding plate 514 fits with the saw blade 513, the triangular adjusting block 520 releases the restriction on the grinding plate 514 to avoid interference.

[0054] In this embodiment, as Figures 1 to 14 shown, a chute is opened at one end of the adjusting sleeve 505 close to the gear rod 504. One end of the gear rod 504 is fixedly connected with a slider. The gear rod 504 is slidably connected inside the chute through the slider, and the cross-section of the chute is set as a T shape. It should be noted that: the slider is circular. The end of the gear rod 504 is slidably connected inside the T-shaped cross-section chute through the circular slider, ensuring the stable sliding of the gear rod 504 inside the chute while ensuring the stability of the cooperation and sliding process between the adjusting sleeve 505 and the gear rod 504, and preventing the adjusting sleeve 505 from separating from the gear rod 504; when the gear rod 504 rotates, the rotating gear rod 504 and the L-shaped bracket 502 move along the track of the annular guide groove 501 on the side wall of the annular bracket 3, causing the adjusting sleeve 505 to drive the guide rod 508 to rotate along the circumference of the annular bracket 3. During the movement of the guide rod 508 along the track of the spiral guide groove 507, the chute on the side wall of the adjusting sleeve 505 cooperates with the slider at one end of the toothed rod to slide, causing the adjusting sleeve 505 to drive the saw blade 513 to gradually move towards the center of the annular bracket 3.

[0055] In this embodiment, as Figures 1 to 14 shown, spring sleeves are fixedly connected to both sides of the middle of the saw blade 513. The compression spring 515 is fixedly connected inside the spring sleeve. One end of the compression spring 515 away from the spring sleeve is fixedly connected with a compression ring, and the side wall of the compression ring is lapped with the side wall of the adjacent grinding plate 514. It should be noted that: the compression ring is movably sleeved on the surface of the rotating rod 512. Through the setting of the compression ring, it is prevented that the saw blade 513 drives the grinding plate 514 to rotate through the compression spring 515 during the rotation of the saw blade 513.

[0056] Anti-slip pads are provided on both sides of the grinding plate 514 facing the adjacent spring sleeves. It should be noted that: to increase the frictional resistance between the grinding plate 514 and the extrusion ring, when the grinding plate 514 fits against the spring sleeve on the side wall of the saw blade 513, the saw blade 513 drives the grinding plate 514 to rotate synchronously; and the anti-slip pads can be set to be matched and inserted in the way of tooth grooves and tooth blocks to achieve the synchronous rotation of the grinding plate 514 and the saw blade 513.

[0057] In this embodiment, as Figures 1 to 14 shown, the side of the U-shaped extrusion plate 517 close to the grinding plate 514 is set as an inclined surface, and the center of the U-shaped extrusion plate 517 and the rotating rod 512 are arranged on the same straight line. It should be noted that: when the U-shaped extrusion plate 517 moves downward, it will press against the grinding plate 514 and move it towards the spring sleeve, and the U-shaped extrusion plate 517 will not interfere with the rotating rod 512.

[0058] In this embodiment, as Figures 1 to 14 shown, the adjusting mechanism 6 includes electric telescopic rods 601. There are two electric telescopic rods 601, and the two electric telescopic rods 601 are symmetrically and fixedly connected to the right side of the top of the base 1. The movable ends of the two electric telescopic rods 601 are respectively fixedly connected to both sides of the positioning bracket 4;

[0059] Round holes 602 are opened on both sides of the lower part of the annular bracket 3. The left ends of the two electric telescopic rods 601 are respectively movably inserted into the two round holes 602. The left end of the electric telescopic rod 601 penetrates through the annular bracket 3 and is fixedly connected with a retaining ring 603. A limit ring 604 is fixedly sleeved on the left side of the electric telescopic rod 601, and the side wall of the limit ring 604 is lapped with the side wall of the annular bracket 3. It should be noted that: when the electric telescopic rod 601 extends to the extreme position to the left, under the restriction of the limit ring 604, the annular bracket 3 is restricted in the current position, and the left side of the annular bracket 3 is lapped with the limit block on the base 1.

[0060] A conical ring adjusting bracket 605 that cooperates with the cutting mechanism 5 is arranged between the annular bracket 3 and the positioning bracket 4. The bottom of the conical ring adjusting bracket 605 is fixedly connected to the top of the base 1. It should be noted that: the inner ring of the conical ring adjusting bracket 605 is set as a conical surface. When the electric telescopic rod 601 contracts, the annular bracket 3 is pulled to move to the right through the retaining ring 603. At this time, the arc-shaped block 518 on the annular bracket 3 contacts and is pressed against the inner ring of the conical ring adjusting bracket 605 and drives the U-shaped connecting rod 516 to move into the adjusting sleeve 505.

[0061] In this embodiment, as Figures 1 to 14 shown, electric push rods are symmetrically and fixedly connected to the right side of the positioning bracket 4. The movable ends of the electric push rods are fixedly connected with arc-shaped clamping blocks. It should be noted that: the electric push rods drive the arc-shaped clamping blocks to clamp the steel pipe blank during the cutting process, reducing the vibration generated during the cutting of the steel pipe blank.

[0062] A discharge hole is provided in the middle of the positioning bracket 4. A discharge guide plate is arranged inside the discharge hole. The bottom of the discharge guide plate is fixedly connected with support legs, and the bottom of the support legs is fixedly connected to the top of the base 1. It should be noted that after the steel pipe blank is cut and polished, the arc-shaped clamping block releases the clamping of the steel pipe blank, so that the cut steel pipe blank is discharged from the position of the discharge guide plate.

[0063] In this embodiment, as Figures 1 to 14 shown, a method for using a steel billet cutting device for steel pipe manufacturing includes the following steps:

[0064] S1. During use, start the steel billet conveying bracket 2 to convey the steel pipe blank towards the positioning ring bracket 3 and the positioning bracket 4. When the steel pipe blank moves to the position of the positioning bracket 4, start the electric push rod to clamp the steel pipe blank with the arc-shaped clamping block, then start the cutting motor 511 to drive the saw blade 513 to rotate, and at the same time start the transmission motor 503 to drive the gear rod 504 to rotate, so that the gear rod 504 meshes with the toothed ring 506 on the ring bracket 3 for transmission;

[0065] S2. As the gear rod 504 rotates, the L-shaped bracket 502 slides along the track of the annular guide groove 501 on the side wall of the annular bracket 3, and the rotating gear rod 504 moving along the circumference of the annular guide groove 501 drives the adjusting sleeve 505 to move synchronously. During this process, the guide rod 508 on the adjusting sleeve 505 slides along the track of the spiral guide groove 507, so that the adjusting sleeve 505 gradually moves towards the center of the annular bracket 3 while moving along the circumference of the annular bracket 3. The rotating saw blade 513 cuts the steel pipe blank during the synchronous movement with the adjusting sleeve 505;

[0066] S3. When the steel pipe blank is cut, turn off the transmission motor 503. At this time, start the electric telescopic rod 601 to move the positioning bracket 4 to the right, so that the steel pipe blank clamped on the positioning bracket 4 moves to the right. At the same time, the electric telescopic rod 601 pulls the annular bracket 3 to move to the right through the retaining ring 603. Since the adjusting sleeve 505 has moved to the limit position towards the center of the annular bracket 3 at this time, the arc-shaped block 518 at the end of the adjusting sleeve 505 moving to the right contacts the inner ring of the conical ring adjusting bracket 605 at the top of the base 1, so that the arc-shaped block 518 is pressed and drives the U-shaped connecting rod 516 to move into the interior of the adjusting sleeve 505. At this time, the U-shaped pressing plate 517 on the U-shaped connecting rod 516 presses against the side wall position of the corresponding grinding plate 514, so that the grinding plate 514 translates on the rotating rod 512 and fits against the side wall of the saw blade 513. The rotating saw blade 513 drives the grinding plate 514 to rotate synchronously, so that the grinding plates 514 on both sides of the saw blade 513 respectively grind the ends of the steel pipe blank between the steel billet conveying bracket 2 and the positioning bracket 4;

[0067] After the grinding of the steel pipe blank is completed, the electric telescopic rod 601 resets. At this time, the reset spring 519 drives the U-shaped connecting rod 516 to move for reset, while the drive motor 503 drives the gear rod 504 to reverse, causing the adjusting sleeve 505 to move for reset to prepare for the next cutting of the steel pipe blank.

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A steel billet cutting device for steel pipe manufacturing, comprising a base (1), characterized in that: On the left side of the top of the base (1), a billet conveying bracket (2) is fixedly connected. In the middle position of the top of the base (1), an annular bracket (3) is slidably connected. On the right side of the top of the base (1), a positioning bracket (4) is slidably connected; On the surface of the annular bracket (3), a cutting mechanism (5) is movably connected. Between the surface of the positioning bracket (4) and the annular bracket (3), an adjusting mechanism (6) that cooperates with the cutting mechanism (5) is movably connected. The bottom of the adjusting mechanism (6) is fixedly connected to the top of the base (1); The cutting mechanism (5) includes an annular guide groove (501). The annular guide groove (501) is opened on the left side of the annular bracket (3). Inside the annular guide groove (501), an L-shaped bracket (502) is slidably connected. On the right side of the L-shaped bracket (502), a driving motor (503) is fixedly connected. At the rotating end of the driving motor (503), a gear rod (504) is fixedly connected. One end of the gear rod (504) is movably connected to an adjusting sleeve (505); Inside the inner ring of the annular bracket (3), a toothed ring (506) is fixedly connected. The inner ring of the toothed ring (506) meshes with the surface of the gear rod (504). On the right side of the annular bracket (3), a spiral guide groove (507) is fixedly connected. Inside the spiral guide groove (507), a guide rod (508) is slidably connected. One end of the guide rod (508) is fixedly connected to the side wall of the adjusting sleeve (505); Inside the inner wall of the adjusting sleeve (505), an installation groove (509) is opened. On the left side of the inner wall of the installation groove (509), a groove (510) is opened. Inside the groove (510), a cutting motor (511) is fixedly connected. At the rotating end of the cutting motor (511), a rotating rod (512) is fixedly connected. In the middle of the rotating rod (512), a saw disc (513) is fixedly sleeved. The right end of the rotating rod (512) is rotatably connected to the right side of the inner wall of the installation groove (509); On both sides of the rotating rod (512), grinding plates (514) are movably sleeved. On both sides of the saw disc (513), pressing springs (515) that cooperate with the grinding plates (514) are fixedly connected. The two pressing springs (515) correspond to the two grinding plates (514) one by one; Vertically movably inserted into the top of the adjusting sleeve (505) is a U-shaped connecting rod (516). At the bottom of the U-shaped connecting rod (516), U-shaped pressing plates (517) are symmetrically fixedly connected. The two U-shaped pressing plates (517) correspond to the two grinding plates (514) one by one. At the top of the U-shaped connecting rod (516), an arc-shaped block (518) that cooperates with the adjusting mechanism (6) is fixedly connected. On the upper part of the U-shaped connecting rod (516), a reset spring (519) is movably sleeved; Symmetrically fixedly connected to the inner wall of the installation groove (509) are triangular adjusting blocks (520). The two triangular adjusting blocks (520) correspond to the two grinding plates (514) one by one.

2. The steel billet cutting device for steel pipe manufacturing according to claim 1, characterized in that: One end of the adjusting sleeve (505) close to the gear rod (504) is provided with a sliding groove. One end of the gear rod (504) is fixedly connected with a slider. The gear rod (504) is slidably connected to the inside of the sliding groove through the slider, and the cross section of the sliding groove is T-shaped.

3. A billet cutting device for steel pipe manufacturing according to claim 2, characterized in that: Both sides of the middle part of the saw blade (513) are fixedly connected with spring sleeves. The extrusion spring (515) is fixedly connected to the inside of the spring sleeve. One end of the extrusion spring (515) far from the spring sleeve is fixedly connected with an extrusion ring, and the side wall of the extrusion ring is lapped with the side wall of the adjacent grinding plate (514); Anti-slip pads are arranged on one side of the grinding plate (514) opposite to the adjacent spring sleeve.

4. A billet cutting device for steel pipe manufacturing according to claim 3, characterized in that: One side of the U-shaped extrusion plate (517) close to the grinding plate (514) is an inclined surface, and the centers of the U-shaped extrusion plate (517) and the rotating rod (512) are arranged on the same straight line.

5. A billet cutting device for steel pipe manufacturing according to claim 4, characterized in that: The adjusting mechanism (6) includes electric telescopic rods (601). There are two electric telescopic rods (601). The two electric telescopic rods (601) are symmetrically and fixedly connected to the right side of the top of the base (1). The movable ends of the two electric telescopic rods (601) are respectively fixedly connected to both sides of the positioning bracket (4); Round holes (602) are opened on both sides of the lower part of the annular bracket (3). The left ends of the two electric telescopic rods (601) are respectively movably inserted into the two round holes (602). The left end of the electric telescopic rod (601) penetrates through the annular bracket (3) and is fixedly connected with a stop ring (603). A limit ring (604) is fixedly sleeved on the left side of the electric telescopic rod (601), and the side wall of the limit ring (604) is lapped with the side wall of the annular bracket (3); A conical ring adjusting bracket (605) matched with the cutting mechanism (5) is arranged between the annular bracket (3) and the positioning bracket (4). The bottom of the conical ring adjusting bracket (605) is fixedly connected to the top of the base (1).

6. The steel billet cutting device for steel pipe manufacturing according to claim 5, characterized in that: Electric push rods are symmetrically and fixedly connected to the right side of the positioning bracket (4). The movable ends of the electric push rods are fixedly connected with arc-shaped clamping blocks; A discharge hole is opened in the middle of the positioning bracket (4). A discharge guide plate is arranged inside the discharge hole. The bottom of the discharge guide plate is fixedly connected with a support leg, and the bottom of the support leg is fixedly connected to the top of the base (1).

7. The usage method of a steel billet cutting device for steel pipe manufacturing according to claim 6 includes the following steps: S1. During use, start the steel billet conveying bracket (2) to convey the steel pipe billet towards the positioning annular bracket (3) and the positioning bracket (4). When the steel pipe billet moves to the position of the positioning bracket (4), start the electric push rod to drive the arc-shaped clamping block to clamp the steel pipe billet. Then start the cutting motor (511) to drive the saw blade (513) to rotate, and at the same time start the transmission motor (503) to drive the gear rod (504) to rotate, so that the gear rod (504) meshes and drives with the toothed ring (506) on the annular bracket (3); S2. As the gear rod (504) rotates, the L-shaped bracket (502) slides along the track of the annular guide groove (501) on the side wall of the annular bracket (3). The gear rod (504) that rotates and moves circumferentially along the annular guide groove (501) drives the adjusting sleeve (505) to move synchronously. During this process, the guide rod (508) on the adjusting sleeve (505) slides along the track of the spiral guide groove (507), causing the adjusting sleeve (505) to gradually move towards the center of the annular bracket (3) while moving circumferentially along the annular bracket (3). The rotating saw blade (513) cuts the steel pipe blank during the synchronous movement with the adjusting sleeve (505). S3. After the steel pipe blank is cut, the drive motor (503) is turned off. At this time, the electric telescopic rod (601) is activated to drive the positioning bracket (4) to move to the right, moving the steel pipe blank clamped on the positioning bracket (4) to the right. At the same time, the electric telescopic rod (601) pulls the annular bracket (3) to move horizontally to the right through the retaining ring (603). Since the adjusting sleeve (505) has moved to the extreme position towards the center of the annular bracket (3) at this time, the arc-shaped block (518) at the end of the adjusting sleeve (505) that moves horizontally to the right contacts the inner ring of the conical ring adjusting bracket (605) at the top of the base (1), causing the arc-shaped block (518) to be pressed and drive the U-shaped connecting rod (516) to move towards the inside of the adjusting sleeve (505). At this time, the U-shaped pressing plate (517) on the U-shaped connecting rod (516) presses against the side wall position of the corresponding grinding plate (514), causing the grinding plate (514) to translate on the rotating rod (512) and fit against the side wall of the saw blade (513). The rotating saw blade (513) drives the grinding plate (514) to rotate synchronously, so that the grinding plates (514) on both sides of the saw blade (513) respectively polish the ends of the steel pipe blank between the steel billet conveying bracket (2) and the positioning bracket (4). S4. After the polishing of the steel pipe blank is completed, the electric telescopic rod (601) resets. At this time, the return spring (519) drives the U-shaped connecting rod (516) to reset, and the drive motor (503) drives the gear rod (504) to reverse, causing the adjusting sleeve (505) to reset and prepare for the next cutting of the steel pipe blank.

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