Metal elbow end beveling machine

Abstract

The invention belongs to the technical field of bent pipe machining equipment, and particularly relates to a metal bent pipe end beveling machine which comprises a bottom plate, the bottom plate is a bearing carrier of the beveling machine, a base plate is fixedly arranged on the bottom plate, and an annular clamping groove is formed in the surface of the base plate; the number of the sliding blocks is two, the sliding blocks are symmetrically installed in the annular clamping groove of the base plate in a sliding mode through clamping blocks, and the sliding blocks can only slide in the annular clamping groove of the base plate; the U-shaped supporting blocks are rotationally installed on the sliding blocks respectively, and the U-shaped supporting blocks are used for limiting pipe openings in the two ends of the bent pipe material. The rotating frame and the beveling tool installed on the rotating frame are driven by the servo motor, pipe openings in the two ends of a bent pipe material are beveled at the same time, a user is allowed to accurately adjust the angle of the beveling tool according to needs through cooperation with the angle adjusting piece, the beveling distance of the beveling tool can be adjusted by screwing a second two-way lead screw, and the machining efficiency is improved. And different groove machining requirements are met.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipe bending processing equipment, and more specifically, relates to a metal pipe end beveling machine. Background Art

[0002] With the development of industrial technology, the quality requirements for pipe connections are getting higher and higher. Especially in the fields of petrochemical industry, natural gas transportation, shipbuilding, nuclear power plant construction, etc., high-quality welded joints are particularly important. Traditional manual grinding or cutting methods are not only inefficient but also difficult to ensure the consistency and accuracy of the bevel, which has promoted the emergence and development of special beveling machines.

[0003] After retrieval, a patent with the authorization announcement number CN104209596B discloses a pipe end beveling machine for bent pipes, which includes a machine base, a bent pipe conveying mechanism for transporting bent pipes, a cutting mechanism, a power mechanism, and a bent pipe fixing mechanism. The bent pipe fixing mechanism is slidably arranged on the slide rail I of the machine base through a support platform, and a clamping mechanism is provided on the support platform. The clamping mechanism includes multiple rows of bases I and a chain arranged on the support platform. The above beveling machine places the clamped bent pipe in the clamping mechanism through a clamp to realize the processing of the bevel of the bent pipe. However, there are still certain limitations during processing. Since only one end of the bent pipe can be beveled and cut, and the two ends of the bent pipe cannot be processed simultaneously. After the operator finishes processing one end, the position of the bent pipe must be readjusted, and then the other end is processed. This not only increases the operation time but also may lead to inconsistent processing accuracy. Moreover, the operator needs to manually adjust the position of the support plate and the angle of the bevel tool, and the operation is relatively cumbersome. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a metal pipe end beveling machine, which can facilitate the synchronous beveling processing of both ends of the metal pipe.

[0005] The technical implementation solution of the present invention is as follows: A metal elbow end beveling machine includes a bottom plate and a base plate. The bottom plate is the load-bearing carrier of this beveling machine, and the base plate is fixedly arranged on the bottom plate. An annular clamping groove is provided on the surface of the base plate. It further includes: Sliding blocks, there are two of them and they are symmetrically slidably installed in the annular clamping groove of the base plate through clamping blocks. The sliding blocks can only slide in the annular clamping groove of the base plate; U-shaped supporting blocks, rotatably installed on each sliding block, and the U-shaped supporting blocks are used to limit the two ends of the pipe material of the elbow; Multi-stage push rods, the number of which is the same as that of the sliding blocks and they are symmetrically hinged on the base plate. The push rods of the multi-stage push rods are respectively hinged to the corresponding sliding blocks on the same side; A clamping assembly, a clamping assembly for clamping the bent part of the pipe material is provided on the base plate; A mounting frame, fixedly connected to the sides of the two U-shaped supporting blocks away from each other. An electric slide rail is installed on the side of the mounting frame away from the U-shaped supporting block, and an assembly block is installed on the electric slide rail; A servo motor, fixedly installed on the top of the assembly block; A rotating frame, fixedly arranged on the output shaft of the servo motor. The rotating frame is a square frame and sliding grooves are provided on both side surfaces; Mounting blocks, there are two of them and they are symmetrically slidably installed on both sides of the rotating frame through sliding plates. The sliding plates are slidably matched with the sliding grooves of the rotating frame; A second bidirectional lead screw, symmetrically rotatably installed on both sides of the rotating frame. The bidirectional threads on the second bidirectional lead screw are respectively threadedly matched with the sliding plates of the corresponding mounting blocks; Beveling tools, beveling tools are installed on the sides of the mounting blocks close to the U-shaped supporting blocks through mounting plates.

[0006] Further, through grooves are symmetrically provided at both upper ends of the U-shaped supporting block. Sliding frames are penetrated and slidably installed in the through grooves at both ends of the U-shaped supporting block. A limiting plate is fixedly installed at the ends of the sliding frames close to each other. The limiting plate is an arc-shaped plate and is symmetrically distributed on both sides of the inner wall of the U-shaped supporting block. Electric push rods are symmetrically and fixedly installed on the outer walls on both sides of the U-shaped supporting block. The push rods of the electric push rods are connected to the sliding frames on the same side.

[0007] Further, the clamping assembly includes a fixing plate, a guide rod, a clamping seat, a rubber pad and a first bidirectional lead screw. Two fixing plates are symmetrically and fixedly connected to the top surface of the base plate. Not less than two guide rods are connected between the fixing plates. Clamping seats are symmetrically slidably installed on the guide rods. Rubber pads are arranged on the clamping surfaces of the clamping seats close to each other. The two clamping seats respectively fit and clamp the pipe wall of the bent part of the pipe material. A first bidirectional lead screw is rotatably installed between the fixing plates. The bidirectional threads of the first bidirectional lead screw are respectively threadedly matched with the corresponding clamping seats on the same side.

[0008] Further, the mounting plate is hinged to the mounting block, the cutting edge of the bevel cutter is welded to the rotation axis of the mounting plate, and the bevel cutter and the mounting block form a certain inclined bevel angle. An angle adjusting member is further provided on the mounting block, and the angle adjusting member is used to support and adjust the bevel angle of the bevel cutter, so that the beveling machine can perform beveling processing on the pipe orifice of the bent pipe material at different angles.

[0009] Further, the angle adjusting member includes a hydraulic cylinder, a connecting block and a connecting rod. The hydraulic cylinder is fixedly installed on the mounting block. A connecting block is fixedly installed on the piston rod of the hydraulic cylinder. A connecting groove is formed on the handle of the bevel cutter. A connecting rod is fixedly connected to the top of the connecting block. The connecting block is slidably connected to the bevel cutter. The connecting rod of the connecting block is located in the connecting groove of the bevel cutter. The piston rod of the hydraulic cylinder pushes and pulls the connecting block, so that the connecting block drives the bevel cutter to rotate on the mounting block around the rotation axis of the mounting plate, so that the bevel cutter can bevel the bent pipe material at different angles.

[0010] Further, a protractor is assembled on the side surface of the mounting block close to the mounting plate. The protractor is specifically a semi-circular protractor scale. The reference scale of the protractor is consistent with the top surface of the mounting block. The protractor uses the bottom edge line of the mounting plate as the angle indication reference line to assist the user to accurately adjust the rotation angles of the mounting plate and the bevel cutter.

[0011] Further, an elastic band I is provided on the clamping seat. The elastic band I is fixedly connected to the top of one of the clamping seats. A first buckle is provided on the top of the other clamping seat. The free end of the elastic band I is buckled on the first buckle. The elastic band I is used to assist the clamping seat to firmly bind the bent part of the bent pipe material. Elastic bands II are fixedly connected to one ends of the tops of the two U-shaped supporting blocks. A second buckle is provided on the other end of the top of the U-shaped supporting block. The free end of the elastic band II is buckled on the second buckle of the corresponding U-shaped supporting block. The elastic band II is used to assist the U-shaped supporting block to firmly bind the two ends of the pipe orifice of the bent pipe material. Both the elastic band I and the elastic band II are elastic, further improving the stability of the beveling processing of the bent pipe material on the beveling machine.

[0012] Further, a chip blowing member is provided on the mounting frame. The chip blowing member includes an air pump, an air delivery pipe and a nozzle. Air pumps are fixedly installed on both sides of the U-shaped supporting block. Nozzles are adjustably arranged on both sides of the mounting frame. The air jet holes of the nozzles face between the two bevel cutters on the same side. The air outlet of the air pump is connected to the corresponding nozzle through the air delivery pipe.

[0013] The beneficial effects of the present invention: 1. The present invention drives a rotating frame and a bevel tool mounted thereon through a servo motor to achieve simultaneous bevel processing of the two ends of a bent pipe material. The angle adjustment member allows the user to precisely adjust the angle of the bevel tool as needed. By turning the second bidirectional lead screw, the bevel spacing of the bevel tool can also be adjusted to meet different bevel processing requirements.

[0014] 2. The present invention can cooperate with mechanical structures such as multi-stage push rods and bidirectional lead screws. The device can flexibly adjust the position and angle of the sliding block and the U-shaped supporting block to adapt to bent pipe materials with different curvatures. With the electric push rod and the limiting plate provided on the U-shaped supporting block, bent pipe materials with different diameters can be effectively fixed, enabling the beveling machine to perform beveling operations on the two ends of various bent pipe materials.

[0015] 3. The present invention uses a first bidirectional lead screw for spacing adjustment and uses rubber pads to increase friction to ensure the stability of the bent pipe material during processing. At the same time, the design of the elastic band further enhances the firm binding of the bent pipe material.

[0016] 4. Through the setting of a protractor, the present invention helps the user to more accurately set the bevel angle, reduces the need for manual adjustment, improves production efficiency, and cooperates with the chip blowing member to be able to remove debris during the beveling process, keeping the processing area clean, thereby improving the quality of the bevel. Brief Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0018] Figure 2 It is a connection relationship diagram of components such as the bottom plate, substrate, sliding block, and U-shaped supporting block of the present invention.

[0019] Figure 3 It is a cross-sectional view of the substrate, sliding block, and U-shaped supporting block of the present invention.

[0020] Figure 4 It is a three-dimensional structural schematic diagram of specific components of the clamping assembly of the present invention.

[0021] Figure 5 It is a schematic diagram of the mounting frame, servo motor, rotating frame, and bevel tool of the present invention.

[0022] Figure 6 It is a connection relationship diagram of the bevel tool, hydraulic cylinder, connecting block, and connecting rod of the present invention.

[0023] Figure 7 It is a schematic diagram of the U-shaped supporting block, sliding frame, limiting plate, and electric push rod of the present invention.

[0024] Figure 8 It is a schematic diagram of the cooperation relationship of the mounting block, mounting plate, bevel tool, and protractor of the present invention.

[0025] Figure 9 This is a diagram showing the mating relationship among the clamping seat, the first elastic band, the U-shaped supporting block, and the second elastic band of the present invention.

[0026] Reference numerals in the attached drawings: 100 - bent pipe material, 1 - bottom plate, 2 - base plate, 21 - annular clamping groove, 3 - sliding block, 31 - clamping block, 4 - U-shaped supporting block, 41 - sliding frame, 42 - limiting plate, 43 - electric push rod, 5 - multi-stage push rod, 6 - clamping assembly, 61 - fixing plate, 62 - guide rod, 63 - clamping seat, 64 - rubber pad, 65 - first bidirectional lead screw, 7 - mounting frame, 71 - electric slide rail, 72 - assembly block, 8 - servo motor, 9 - rotating frame, 10 - mounting block, 101 - sliding plate, 11 - second bidirectional lead screw, 12 - mounting plate, 13 - groove cutter, 131 - connecting groove, 14 - angle adjusting member, 141 - hydraulic cylinder, 142 - connecting block, 143 - connecting rod, 15 - protractor, 16 - first elastic band, 161 - first buckle, 17 - second elastic band, 171 - second buckle, 18 - chip blowing member, 181 - air pump, 182 - air delivery pipe, 183 - nozzle. Detailed implementation manners

[0027] The present invention will be specifically described below with reference to the accompanying drawings. It should be noted first that in different described embodiments, the same components are provided with the same reference numerals or the same component names. Among them, the disclosed content included throughout the specification can be meaningfully applied to the same components with the same reference numerals or the same component names. The positional descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and illustrated drawings and are meaningfully applied to the new positions when the positions change.

[0028] Embodiment 1: A metal bent pipe end groove cutter, as Figure 1 , Figure 3 , Figure 5 and Figure 6As shown, it includes a bottom plate 1 and a base plate 2. The bottom plate 1 is the load-bearing carrier of this beveling machine, and the base plate 2 is fixedly arranged on the bottom plate 1. An annular clamping groove 21 is arranged on the surface of the base plate 2. It also includes: sliding blocks 3, there are two of them and they are symmetrically slidably installed in the annular clamping groove 21 of the base plate 2 through clamping blocks 31. The sliding blocks 3 can only slide in the annular clamping groove 21 of the base plate 2; U-shaped supporting blocks 4, which are rotatably installed on each sliding block 3. The U-shaped supporting blocks 4 are used to limit the two ends of the pipe bend 100 at the pipe orifices; multi-stage push rods 5, the number of which is the same as that of the sliding blocks 3 and they are symmetrically hinged on the base plate 2. The push rods of the multi-stage push rods 5 are respectively hinged to the corresponding sliding blocks 3 on the same side; a clamping assembly 6, a clamping assembly 6 for clamping the bending part of the pipe bend 100 is arranged on the base plate 2; a mounting frame 7, which is fixedly connected to the side where the two U-shaped supporting blocks 4 are away from each other. An electric slide rail 71 is installed on the side of the mounting frame 7 away from the U-shaped supporting blocks 4, and an assembly block 72 is installed on the electric slide rail 71; a servo motor 8, which is fixedly installed on the top of the assembly block 72; a rotating frame 9, which is fixedly arranged on the output shaft of the servo motor 8. The rotating frame 9 is a square frame and both side surfaces are provided with sliding grooves; mounting blocks 10, there are two of them and they are symmetrically slidably installed on both sides of the rotating frame 9 through sliding plates 101. The sliding plates 101 are slidably matched with the sliding grooves of the rotating frame 9; a second bidirectional lead screw 11, which is symmetrically rotatably installed on both sides of the rotating frame 9. The bidirectional threads on the second bidirectional lead screw 11 are respectively threadedly matched with the sliding plates 101 of the corresponding mounting blocks 10; beveling tools 13, beveling tools 13 are installed on the side of the mounting blocks 10 close to the U-shaped supporting blocks 4 through mounting plates 12. By driving the sliding blocks 3 and the U-shaped supporting blocks 4 on both sides to adjust the limiting angle and position on the base plate 2 through the multi-stage push rods 5, the pipe bend 100 placed on the base plate 2 can be preliminarily limited. Cooperating with the clamping assembly 6 to further clamp and fix at the bending part of the pipe bend 100. By driving the assembly block 72 and the servo motor 8 close to the pipe orifices on the same side of the pipe bend 100 through the electric slide rail 71 on the mounting frame 7, and using the servo motors 8 on both sides to synchronously drive the rotating frame 9 and the mounting blocks 10 to rotate, the beveling tools 13 on the mounting blocks 10 can synchronously bevel the two ends of the pipe bend 100. Then, by turning the second bidirectional lead screw 11 to adjust the distance between the two mounting blocks 10 and the beveling tools 13, the beveling tools 13 can process bevels at different positions and depths, improving the processing efficiency of the bevel of the pipe bend 100.

[0029] As Figure 1 , Figure 3 and Figure 7As shown in the figure, through grooves are symmetrically formed at both upper ends of the U-shaped supporting block 4. Sliding frames 41 penetrate and are slidably installed in the through grooves at both ends of the U-shaped supporting block 4. A limiting plate 42 is fixedly installed at one end of the sliding frames 41 close to each other. The limiting plate 42 is an arc-shaped plate and is symmetrically distributed on both sides of the inner wall of the U-shaped supporting block 4. Electric push rods 43 are symmetrically and fixedly installed on the outer walls on both sides of the U-shaped supporting block 4. The push rods of the electric push rods 43 are connected to the sliding frames 41 on the same side. When the electric push rods 43 at both ends of the U-shaped supporting block 4 are synchronously activated, the electric push rods 43 drive the sliding frames 41 and the limiting plate 42 to limit the bent pipe material 100 inside the U-shaped supporting block 4, so that the U-shaped supporting block 4 can limit the bent pipe materials 100 with different pipe diameters through the limiting plate 42, thereby meeting the bevel processing requirements of bent pipe materials 100 with different sizes.

[0030] As Figure 1 , Figure 2 and Figure 4 As shown in the figure, the clamping assembly 6 includes a fixing plate 61, a guide rod 62, a clamping seat 63, a rubber pad 64 and a first bidirectional lead screw 65. Two fixing plates 61 are symmetrically fixed on the top surface of the substrate 2. Two guide rods 62 are connected between the fixing plates 61. Clamping seats 63 are symmetrically and slidably installed on the guide rods 62. Rubber pads 64 are arranged on the clamping surfaces of the clamping seats 63 close to each other at the upper part. The two clamping seats 63 respectively fit and clamp the pipe walls of the bent pipe material 100. A first bidirectional lead screw 65 is rotatably installed between the fixing plates 61. The bidirectional threads of the first bidirectional lead screw 65 are respectively in threaded cooperation with the corresponding clamping seats 63 on the same side. By turning the first bidirectional lead screw 65, the clamping distance between the two clamping seats 63 is adjusted by means of the thread under the guidance of the guide rod 62. The clamping seats 63 elastically clamp the bent part of the bent pipe material 100 through the rubber pads 64, so that the beveling machine can stably clamp the bent pipe materials 100 with different sizes.

[0031] When using this beveling machine to bevel the port of the bent pipe material 100, the operator needs to place the bent pipe material 100 to be processed with a bevel on top of the base plate 2. During the placement process, the multi-stage push rods 5 at both places are synchronously activated. The push rods of the multi-stage push rods 5 drive the sliding blocks 3 and U-shaped supporting blocks 4 on both sides to slide and adjust along the annular clamping groove 21 of the base plate 2. Since the sliding block 3 can only move within the annular clamping groove 21, it is ensured that the clamping position of the bent pipe material 100 can be accurately adjusted. At the same time, the U-shaped supporting block 4 is rotated and adjusted on the sliding block 3 to a suitable limiting angle until the two pipe ends of the bent pipe material 100 can be smoothly placed inside the U-shaped supporting block 4 on the sliding block 3. Then, the multi-stage push rods 5 at both places are closed, so that the bent pipe material 100 can be initially limited within the U-shaped supporting block 4. In order to adapt to bent pipe materials 100 with different diameters, a limiting plate 42 is provided inside the U-shaped supporting block 4. The electric push rods 43 on both sides of the U-shaped supporting block 4 are activated, and the electric push rods 43 drive the sliding frame 41 to drive the limiting plate 42 to clamp inward within the through groove of the U-shaped supporting block 4, so that the bent pipe material 100 inside the U-shaped supporting block 4 is further limited and clamped by the limiting plate 42, thereby adapting to bent pipe materials 100 of different sizes. When the two pipe ends of the bent pipe material 100 are both stably limited by the limiting plate 42, finally, the first bidirectional lead screw 65 is turned. Under the guiding action of the guide rod 62, the distance between the two clamping seats 63 is adjusted by means of threading, so that the rubber pads 64 on the clamping surfaces of the clamping seats 63 can firmly clamp the bending part of the bent pipe material 100, thereby ensuring that the entire bent pipe material 100 will not shift during the processing, and preparing for the double-pipe-end beveling operation of the subsequent bent pipe material 100.

[0032] After the bent pipe material 100 is firmly fixed, it enters the beveling processing stage. First, according to the actual beveling requirements of the bent pipe material 100, the second bidirectional lead screws 11 on both sides of the rotating frame 9 are turned. The second bidirectional lead screws 11 drive the sliding plate 101 and the mounting block 10 to move synchronously through threading, so as to adjust the distance between the two mounting blocks 10 and the beveling tool 13 to meet the beveling depth requirements of different bent pipe materials 100. After adjusting the beveling spacing of the beveling tool 13, the electric slide rail 71 on the mounting frame 7 is activated. The electric slide rail 71 drives the assembly block 72 and the servo motor 8 thereon to approach the bent pipe material 100. At the same time, the servo motor 8 is activated. The output shaft of the servo motor 8 drives the two mounting blocks 10 and the beveling tool 13 on both sides to rotate at high speed through the rotating frame 9. As the high-speed rotating beveling tool 13 continuously approaches the bent pipe material 100, the two beveling tools 13 will synchronously bevel and polish the two ends of the pipe orifice in contact with the bent pipe material 100, and under the continuous drive of the electric slide rail 71, until the beveling tool 13 completes the beveling of the bent pipe material 100. After the beveling is completed, the electric slide rail 71 drives the assembly block 72 and the servo motor 8 to reset in the reverse direction. At the same time, the servo motor 8 is turned off. Finally, after loosening the clamping of the bent pipe material 100 by the clamping seat 63 and the limiting plate 42, the bent pipe material 100 with beveled ends at both ends can be taken out.

[0033] Example 2: On the basis of Example 1, as Figure 1 , Figure 5 and Figure 6 shown, the mounting plate 12 is hinged to the mounting block 10, the cutting edge of the bevel cutter 13 is welded to the rotating shaft of the mounting plate 12, and the bevel cutter 13 and the mounting block 10 form a certain inclined bevel angle. An angle adjusting member 14 is further provided on the mounting block 10. The angle adjusting member 14 is used to support and adjust the bevel angle of the bevel cutter 13, so that the beveling machine can perform beveling processing on the pipe orifice of the bent pipe material 100 at different angles; the angle adjusting member 14 includes a hydraulic cylinder 141, a connecting block 142 and a connecting rod 143. The hydraulic cylinder 141 is fixedly installed on the mounting block 10. A connecting block 142 is fixedly installed on the piston rod of the hydraulic cylinder 141. A connecting groove 131 is formed on the handle of the bevel cutter 13. A connecting rod 143 is fixedly connected to the top of the connecting block 142. The connecting block 142 is slidably connected to the bevel cutter 13. The connecting rod 143 of the connecting block 142 is located in the connecting groove 131 of the bevel cutter 13. The piston rod of the hydraulic cylinder 141 pushes and pulls the connecting block 142, so that the connecting block 142 drives the bevel cutter 13 to rotate on the mounting block 10 around the rotating shaft of the mounting plate 12, so that the bevel cutter 13 can bevel the bent pipe material 100 at different angles.

[0034] As Figure 6 and Figure 8 shown, a protractor 15 is assembled on the side surface of the mounting block 10 near the mounting plate 12. The protractor 15 is specifically a semi-circular protractor scale. The reference scale of the protractor 15 is consistent with the top surface of the mounting block 10. The protractor 15 uses the bottom edge line of the mounting plate 12 as the angle indication reference line to assist the user in accurately adjusting the rotation angles of the mounting plate 12 and the bevel cutter 13.

[0035] When it is necessary to change the bevel angle of the bent pipe material 100, by activating the hydraulic cylinder 141, the piston cylinder of the hydraulic cylinder 141 will push and pull the connecting block 142, so that the connecting rod 143 on the connecting block 142 presses on the connecting groove 131 of the bevel cutter 13, thereby driving the bevel cutter 13 and the mounting plate 12 to rotate on the mounting block 10 at a certain inclined angle. During the adjustment process, the user can refer to the protractor 15. By observing the angle change indicated by the mounting plate 12 on the protractor 15, it can assist the user in accurately adjusting the bevel angle.

[0036] As Figure 1 and Figure 9As shown, an elastic band 16 is provided on the clamping seat 63. The elastic band 16 is fixedly connected to the top of one of the clamping seats 63. A first buckle 161 is arranged on the top of the other clamping seat 63. The free end of the elastic band 16 is buckled on the first buckle 161. The elastic band 16 is used to assist the clamping seat 63 in firmly binding the bent part of the bent pipe material 100. At one end of the top of both U-shaped supporting blocks 4, an elastic band 17 is fixedly connected. A second buckle 171 is arranged at the other end of the top of the U-shaped supporting block 4. The free end of the elastic band 17 is buckled on the corresponding second buckle 171 of the U-shaped supporting block 4. The elastic band 17 is used to assist the U-shaped supporting block 4 in firmly binding the two ends of the bent pipe material 100. Both the elastic band 16 and the elastic band 17 are elastic, further improving the stability of the bent pipe material 100 during beveling processing on the beveling machine.

[0037] As Figure 1 and Figure 5 As shown, a chip blowing part 18 is arranged on the mounting frame 7. The chip blowing part 18 includes an air pump 181, an air delivery pipe 182 and a nozzle 183. Air pumps 181 are fixedly installed on both sides of the U-shaped supporting block 4. Nozzles 183 are adjustably arranged on both sides of the mounting frame 7. The air jet holes of the nozzles 183 face between the two beveling tools 13 on the same side. The air outlet of the air pump 181 is connected to the corresponding nozzle 183 through the air delivery pipe 182. When the beveling tool 13 performs beveling, the air pump 181 is enabled synchronously. The air pump 181 injects gas into the nozzle 183 through the air delivery pipe 182, so that the nozzle 183 can blow high-pressure air flow on the beveling part of the bent pipe material 100 to clean the beveling debris generated at the beveling part of the bent pipe material 100, thereby improving the quality of the bevel of the bent pipe material 100.

[0038] After the preliminary positioning and clamping of the bent pipe material 100 are completed, in order to further improve the stability of the bent pipe material 100 on the beveling machine, the operator can buckle the free end of the elastic band 16 on the first buckle 161 on the clamping seat 63, thus forming a closed-loop structure to assist the clamping seat 63 in binding the bent part of the bent pipe material 100 more firmly. At the same time, on the U-shaped supporting blocks 4 on both sides, buckle the free end of the elastic band 17 to the corresponding second buckle 171, so that the U-shaped supporting blocks 4 can more firmly fix the two ends of the bent pipe material 100, ensuring that the bent pipe material 100 remains stable and immovable during the entire beveling process, improving the working precision and safety. While the beveling tool 13 is performing beveling operations, the air pumps 181 on both sides can be enabled synchronously. The gas generated by the air pumps 181 is transmitted to the nozzles 183 through the air delivery pipes 182 and ejected in the form of high-pressure air flow. These high-pressure air flows directly act on the beveling part of the bent pipe material 100, effectively removing the debris generated during the beveling process, improving the quality of the bevel of the bent pipe material 100, reducing the workload of subsequent cleaning, and preventing the debris from wearing the beveling tool 13 and extending the service life of the tool.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A metal pipe bending end beveling machine, comprising a bottom plate (1) and a base plate (2), wherein the base plate (2) is fixedly mounted on the bottom plate (1), and an annular clamping groove (21) is provided on the surface of the base plate (2); Its characteristic is that include: Two sliding blocks (3) are provided and are symmetrically slidably mounted in the annular clamping groove (21) of the base plate (2) via a clamping block (31); A U-shaped support block (4) rotatably mounted on each sliding block (3); The multi-stage push rods (5) are equal in number to the sliding blocks (3) and are symmetrically hinged on the base plate (2), and the push rods of the multi-stage push rods (5) are respectively hinged to the corresponding sliding blocks (3) on the same side; A clamping assembly (6), wherein the base plate (2) is provided with a clamping assembly (6) for clamping the bent portion of the bent pipe material (100); A mounting frame (7) is fixedly connected to two sides of the U-shaped brackets (4) that are away from each other, an electric slide rail (71) is installed on the side of the mounting frame (7) that is away from the U-shaped brackets (4), and an assembly block (72) is installed on the electric slide rail (71); A servo motor (8) is fixedly mounted on the top of the assembly block (72); A rotating frame (9) is fixedly mounted on the output shaft of the servo motor (8); Two mounting blocks (10) are provided and are symmetrically slidably mounted on both sides of the rotating frame (9) via sliding plates (101); A second bidirectional screw rod (11) is symmetrically mounted on two sides of the rotating frame (9), wherein the bidirectional threads on the second bidirectional screw rod (11) respectively cooperate with threads of the sliding plates (101) of the corresponding mounting blocks (10); A beveling tool (13) is installed on one side of the mounting block (10) close to the U-shaped support block (4) via a mounting plate (12).

2. A metal pipe bending end beveling machine according to claim 1, characterized in that: Both ends of the upper part of the U-shaped support block (4) are symmetrically provided with through grooves, and sliding frames (41) are penetrated and slidably installed in the through grooves at both ends of the U-shaped support block (4), and a limit plate (42) is fixedly installed at one end of the sliding frame (41) close to each other, and the limit plate (42) is an arc-shaped plate and is symmetrically distributed on both sides of the inner wall of the U-shaped support block (4), and electric push rods (43) are symmetrically fixedly installed on the outer walls of both sides of the U-shaped support block (4), and the push rods of the electric push rods (43) are connected to the sliding frame (41) on the same side.

3. A metal pipe bending end beveling machine according to claim 2, characterized in that: The clamping assembly (6) comprises a fixing plate (61), a guide rod (62), a clamping seat (63), a rubber pad (64) and a first bidirectional screw rod (65). Two fixing plates (61) are symmetrically fixed on the top surface of the base plate (2). No less than two guide rods (62) are connected between the fixing plates (61). Clamping seats (63) are symmetrically slidably mounted on the guide rods (62). Rubber pads (64) are arranged on clamping surfaces close to each other on the upper part of the clamping seats (63). The two clamping seats (63) are respectively adapted to and clamp the bent pipe walls of the bent pipe material (100). A first bidirectional screw rod (65) is rotatably mounted between the fixing plates (61). The bidirectional threads of the first bidirectional screw rod (65) are respectively matched with the threads of the clamping seats (63) corresponding to the same side.

4. A metal pipe bending end beveling machine according to claim 3, characterized in that: The mounting plate (12) is hinged on the mounting block (10); the blade of the beveling tool (13) is welded to the rotating shaft of the mounting plate (12); the beveling tool (13) and the mounting block (10) are at a certain inclined beveling angle; an angle adjusting member (14) is also provided on the mounting block (10); the angle adjusting member (14) is used to support and adjust the beveling angle of the beveling tool (13).

5. A metal pipe bending end beveling machine according to claim 4, characterized in that: The angle adjustment member (14) comprises a hydraulic cylinder (141), a connecting block (142) and a connecting rod (143); the hydraulic cylinder (141) is fixedly mounted on the mounting block (10); the connecting block (142) is fixedly mounted on the piston rod of the hydraulic cylinder (141); a connecting groove (131) is provided on the handle of the beveling tool (13); a connecting rod (143) is fixedly connected to the top of the connecting block (142); the connecting block (142) and the beveling tool (13) are slidably connected; and the connecting rod (143) of the connecting block (142) is located in the connecting groove (131) of the beveling tool (13).

6. A metal pipe bending end beveling machine according to claim 5, characterized in that: A protractor (15) is mounted on the side surface of the mounting block (10) near the mounting plate (12); the protractor (15) is specifically a semicircular protractor; the reference scale of the protractor (15) is consistent with the top surface of the mounting block (10); the protractor (15) uses the bottom edge line of the mounting plate (12) as a reference line for angle indication.

7. A metal pipe bending end beveling machine according to claim 6, characterized in that: The clamping seat (63) is provided with an elastic band 1 (16), and the elastic band 1 (16) is fixedly connected to the top of one of the clamping seats (63). The top of the other clamping seat (63) is provided with a first buckle (161), and the free end of the elastic band 1 (16) is buckled on the first buckle (161). One end of the top of the two U-shaped support blocks (4) is fixedly connected with an elastic band 2 (17), and the other end of the top of the U-shaped support block (4) is provided with a second buckle (171), and the free end of the elastic band 2 (17) is buckled on the second buckle (171) of the corresponding U-shaped support block (4). The elastic band 1 (16) and the elastic band 2 (17) are both elastic.

8. A metal pipe bending end beveling machine according to claim 7, characterized in that: The mounting frame (7) is provided with a chip blowing member (18), the chip blowing member (18) comprising an air pump (181), an air delivery pipe (182) and a nozzle (183), the air pump (181) is fixedly mounted on both sides of the U-shaped support block (4), the nozzle (183) is adjustably mounted on both sides of the mounting frame (7), the air jet hole of the nozzle (183) faces between two groove cutting tools (13) on the same side, and the air outlet of the air pump (181) is connected to the corresponding nozzle (183) via the air delivery pipe (182).

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