A beveling machine for metal pipes

Abstract

The application provides a beveling machine for metal pipe machining, and relates to the technical field of beveling machines.The beveling machine comprises a rack and beveling cutting knives, a plurality of beveling cutting knives are arranged, a cutter driving mechanism, an outer clamping mechanism, an inner expansion clamping mechanism, an auxiliary support seat, a supporting frame, a protective cover, a chip collecting groove and a positioning plate are further arranged, the cutter driving mechanism is used for adjusting the rotation radius of the beveling cutting knives and driving the beveling cutting knives to rotate, the outer clamping mechanism is used for supporting and clamping the outer wall of the pipe, the inner expansion clamping mechanism is used for uniformly expanding and clamping the inner wall of the pipe at multiple points, the supporting frame is arranged on the auxiliary support frame in a liftable manner, the protective cover is arranged on the driving seat in a detachable manner, the chip collecting groove is arranged below the end of the pipe, and the positioning plate is arranged on the rack in a movable manner.The beveling machine for metal pipe machining realizes accurate centering and stable clamping of the pipe and the beveling cutting knives by utilizing the outer clamping mechanism, the inner expansion clamping mechanism and the supporting frame.

Description

Technical Field

[0001] This invention belongs to the field of beveling machine technology, specifically, it relates to a beveling machine for processing metal pipes. Background Technology

[0002] A beveling machine is a mechanical device used to bevele the edges of metal pipes. Its main function is to process a beveled edge at a specific angle at the pipe end by cutting or milling, in preparation for subsequent welding.

[0003] Beveling machines typically employ internal expansion or external clamping structures for clamping. Existing beveling machines use a single method to abut against the inner or outer wall of the pipe. Due to the uneven force distribution along the side wall of the pipe caused by single or two-point clamping, especially when the pipe has ellipticity or wall thickness deviation, its axis is difficult to completely coincide with the pipe's axis. Furthermore, when processing long pipes, the pipe's own weight causes the beveling side to tilt upwards, resulting in poor beveling quality and affecting subsequent welding quality. In addition, a large amount of debris is generated during beveling. This debris has high temperature and impact force under cutting action, posing a potential hazard to the surrounding environment and operators. Summary of the Invention

[0004] The purpose of this invention is to provide a beveling machine for processing metal pipes, which solves the technical problems of insufficient clamping stability and the harm to the environment and operators caused by the splashing of cutting debris in related technologies.

[0005] At least one embodiment of the present invention provides a beveling machine for processing metal pipes, including a frame and beveling cutters, wherein multiple beveling cutters are provided, and further includes: A tool driving mechanism, used to adjust the rotation radius of the beveling cutter and drive the beveling cutter to rotate and approach the pipe, the tool driving mechanism comprising: A drive base, which is movably mounted on the frame; A rotating plate, which is rotatably mounted on the drive seat; A tool adjustment assembly, used to synchronously adjust the distance between the axes of multiple beveling cutters and the rotating plate to accommodate different pipe diameters, the tool adjustment assembly comprising: A central ring, which is fixedly mounted on the rotating plate; The system includes multiple adjustable tracks, each corresponding to a bevel cutting blade. The adjustable tracks are fixedly connected to the central ring, and adjustable blocks are slidably arranged inside the adjustable tracks, with the bevel cutting blade mounted on the adjustable blocks. A drive screw is rotatably disposed inside the adjusting track, and the adjusting block and the drive screw are threadedly connected; A driven gear is fixedly mounted at the end of the drive screw; A drive rack is slidably disposed on the central ring, and the drive rack meshes with the driven gear; A rotating ring, which is fixedly connected to a plurality of the drive racks; A drive block is movably disposed inside the drive seat, and an annular groove matching the drive block is provided on the rotating ring; An external clamping mechanism, mounted on the frame, is used to support and clamp the outer wall of the pipe, aligning the pipe's axis of rotation with the rotation axis of the beveling cutter. The external clamping mechanism includes: A support base, which is fixedly mounted on the frame; A limiting semi-ring is provided, and multiple limiting semi-rings are stacked sequentially and installed on the support base. The inner arc surface of the uppermost limiting semi-ring is in contact with the outer wall of the pipe. A clamping block, which can be raised and lowered on the support base, is used to press down on the outer wall of the pipe; An internal expansion clamping mechanism, mounted on the frame, is used to perform multi-point uniform expansion clamping on the inner wall of the pipe. The internal expansion clamping mechanism includes: A central shaft is movably mounted on the frame, passing through the tool drive mechanism and coaxially arranged with the tube. A fixing block is fixedly disposed at the end of the central shaft; A movable ring, which is capable of sliding along the central axis; An inner expansion block is rotatably connected to a rotating frame, and the rotating frame is rotatably connected to a fixed block. A drive frame, the two ends of which are rotatably connected to the moving ring and the rotating frame, respectively; An auxiliary support base, wherein rollers are provided at the bottom of the auxiliary support base; A support frame, which can be lifted and lowered on the auxiliary support frame, is used to support the support material; A protective cover is detachably mounted on the drive seat, the bevel cutting blade is located inside the protective cover, and a chip discharge port is provided at the bottom of the protective cover; A chip collection groove is fixedly mounted on the frame and is located below the end of the pipe. A positioning plate, which is movably mounted on the frame, is used to position the end of the pipe.

[0006] To remove debris from inside the pipe, a debris-blowing assembly is also included. This assembly is mounted on the internal expansion clamping mechanism and is used to blow debris from the bottom inner side of the pipe. The debris-blowing assembly includes: An air supply pipe is provided, and the fixing block has a hollow structure. The fixing block is connected to the air supply equipment through the air supply pipe. The purge pipe has a hollow inner expansion block at the bottom. The purge pipe is connected to the inner expansion block at the bottom. The air outlet of the purge pipe faces the end of the pipe. The inner expansion block at the bottom is connected to the fixing block.

[0007] To achieve the rotation of the rotating plate, the rotating plate is rotatably mounted on the drive seat via a hollow drive shaft. A driven gear ring is fixedly fitted on the outside of the drive shaft, and a drive gear is rotatably mounted inside the drive seat. The driven gear ring and the drive gear mesh with each other.

[0008] To enable the movement of the moving ring, the central shaft is a hollow structure, an electric cylinder is installed inside the central shaft, a drive plate is fixedly connected to the inner side of the moving ring, and a moving groove is provided on the central shaft for the drive plate to move.

[0009] To improve the stability between the limiting semi-rings, multiple inserts are fixedly connected to the bottom of the limiting semi-rings, and slots matching the inserts are provided on the top of the limiting semi-rings and the top of the support base.

[0010] 1. Compared with the prior art, the beveling machine for metal pipe processing provided in this embodiment of the invention, by setting an external clamping mechanism and an internal expansion clamping mechanism in combination, realizes the support and clamping of the outer wall of the pipe and the multi-point uniform expansion clamping of the inner wall, so that the force distribution of the pipe is uniform during processing, reducing the problem of axis deviation caused by the ellipticity or wall thickness deviation of the pipe, ensuring that the axis of the pipe coincides with the rotation axis of the beveling cutter, and improving the beveling processing accuracy and subsequent welding quality.

[0011] 2. Compared with the prior art, the beveling machine for metal pipe processing provided in this embodiment of the invention can effectively support long pipes by setting auxiliary support seats and support frames. Furthermore, the rotation of rollers can adapt to support pipes of different lengths, reducing the upward tilting of the processing side due to the weight of the pipe itself, and further ensuring the stability of beveling processing. At the same time, the support frame can be raised and lowered to adapt to different pipe diameters.

[0012] 3. Compared with the prior art, the beveling machine for metal pipe processing provided in this embodiment of the invention can simultaneously adjust multiple beveling cutting blades through a tool adjustment component, thereby changing the rotation radius of multiple beveling cutting blades. The adjustment efficiency is high and the consistency is good, which can quickly adapt to the processing requirements of different pipe diameters. In addition, multiple beveling cutting blades can limit the end of the pipe and cut evenly, further improving the processing accuracy and surface quality.

[0013] 4. Compared with the prior art, the beveling machine for metal pipe processing provided in this embodiment of the invention shields the beveling processing area with a protective cover, reducing the splashing of high-temperature chips and protecting the safety of operators. The chip discharge port allows the chips to fall into the chip collection trough for collection, improving the working environment. At the same time, the air supply device sends air to the blow pipe, which is located in the lower part of the pipe, to blow out the chips that fall into the pipe during processing in a timely manner, reducing the impact of chip residue on subsequent processes. The airflow can also help cool the internal expansion clamping mechanism, the pipe and the beveling cutter, which helps to extend the service life of the equipment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a first-view structural schematic diagram of a beveling machine for processing metal pipes provided in an embodiment of the present invention. Figure 2 This is an embodiment of the present invention. Figure 1 A schematic diagram of the overall structure from a second perspective; Figure 3 This is an embodiment of the present invention. Figure 1 A schematic diagram of the auxiliary support base, support frame, and lead screw feed mechanism; Figure 4 This is an embodiment of the present invention. Figure 1 A schematic diagram of the structure of the middle frame, chip collection groove, tool drive mechanism and internal expansion clamping mechanism; Figure 5 This is an embodiment of the present invention. Figure 1 Schematic diagram of the medium-sized cutting tool drive mechanism; Figure 6 This is an embodiment of the present invention. Figure 1 A first-view structural schematic diagram of the bevel cutting tool and tool adjustment assembly; Figure 7 This is an embodiment of the present invention. Figure 1A second-view structural schematic diagram of the bevel cutting tool and tool adjustment assembly; Figure 8 This is an embodiment of the present invention. Figure 1 Schematic diagram of the Chinese and foreign clamping mechanism; Figure 9 This is an embodiment of the present invention. Figure 1 Schematic diagram of the middle limiting semi-ring and the insert block; Figure 10 This is an embodiment of the present invention. Figure 1 A schematic diagram of the internal clamping mechanism and the chip blowing assembly; Figure 11 This is an embodiment of the present invention. Figure 1 Schematic diagram of the central purging pipe, transfer pipe and internal expansion clamping mechanism; Figure 12 This is an embodiment of the present invention. Figure 7 A magnified schematic diagram of the structure at point A in the middle.

[0016] In the picture: 1. Frame; 2. Bevel cutting blade; 3. Auxiliary support base; 4. Support frame; 5. Lead screw feed mechanism; 6. Protective cover; 7. Chip collection trough; 8. Positioning plate; 9. Electric cylinder five; 101. Drive base; 102. Rotating plate; 103. Electric cylinder two; 104. Drive shaft; 105. Driven gear ring; 106. Drive gear; 107. Motor one; 201. Central ring; 202. Adjusting track; 203. Drive screw; 204. Driven gear; 205. Drive rack; 206. Rotating ring; 207. Drive block; 208. Adjusting block; 209. Electric cylinder three; 301. Support base; 302. Limiting semi-ring; 303. Clamping block; 304. Insert block; 305. Hydraulic cylinder; 401. Central shaft; 402. Fixed block; 403. Moving ring; 404. Inner expansion block; 405. Drive frame; 406. Electric cylinder four; 407. Electric cylinder one; 408. Drive plate; 409. Rotating frame; 501. Air supply pipe; 502. Purge pipe; 503. Transfer pipe. Detailed Implementation The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this disclosure will be explained and described below.

[0017] It should be understood that the described embodiments are merely some, not all, of the embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0018] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0019] It should be understood that the term "and / or" used in this article is merely a way of describing the logical relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0020] Depending on the context, the word "if" as used here can be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination" or "in response to determination" or "when detection (of the stated condition or event)" or "in response to detection (of the stated condition or event)."

[0021] It should be understood that the terms "first," "second," etc., used in this disclosure are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0022] In the description of this disclosure, the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of this disclosure.

[0023] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0024] like Figures 1 to 2 As shown, a beveling machine for processing metal pipes according to an embodiment of the present invention is illustrated, including a frame 1 and beveling cutters 2, wherein multiple beveling cutters 2 are provided, and further including a cutter driving mechanism, an outer clamping mechanism, an inner clamping mechanism, an auxiliary support base 3, a support frame 4, a protective cover 6, a chip collection groove 7 and a positioning plate 8.

[0025] The tool drive mechanism is used to adjust the rotation radius of the beveling cutter 2 and to drive the beveling cutter 2 to rotate and approach the pipe, such as... Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the tool driving mechanism includes a drive base 101, a rotating plate 102, and a tool adjustment assembly. The drive base 101 is movably mounted on the frame 1, and an electric cylinder 103 is mounted on the frame 1. The drive base 101 is fixedly mounted on the output end of the electric cylinder 103. The rotating plate 102 is rotatably mounted on the drive base 101. The rotating plate 102 is rotatably mounted on the drive base 101 via a hollow drive shaft 104. A driven gear ring 105 is fixedly fitted on the outside of the drive shaft 104. A drive gear 106 is rotatably mounted inside the drive base 101. A motor 107 is mounted inside the drive base 101. The drive gear 106 is fixedly mounted on the output end of the motor 107. The driven gear ring 105 and the drive gear 106 mesh. The motor 107 can drive the rotating plate 102 and the beveling cutter 2 to rotate. The electric cylinder 103 can drive the drive base 101 and the beveling cutter 2 to approach the pipe, thereby performing beveling processing on the pipe end.

[0026] The tool adjustment assembly is used to synchronously adjust the distance between the axes of multiple beveling cutters 2 and the rotating plate 102 to accommodate different pipe diameters, such as... Figure 6 , Figure 7 and Figure 12As shown, the tool adjustment assembly includes a central ring 201, an adjustment track 202, a drive screw 203, a driven gear 204, a drive rack 205, a rotating ring 206, and a drive block 207. The central ring 201 is fixedly mounted on the rotating plate 102. Multiple adjustment tracks 202 are provided, each corresponding to a bevel cutting blade 2. The adjustment tracks 202 are fixedly connected to the central ring 201. An adjustment block 208 is slidably mounted inside the adjustment track 202, and the bevel cutting blade 2 is mounted on the adjustment block 208. Rod 203 is rotatably mounted inside adjusting rail 202. Adjusting block 208 and drive screw 203 are threadedly connected. Driven gear 204 is fixedly mounted at the end of drive screw 203. Drive rack 205 is slidably mounted on central ring 201 and meshes with driven gear 204. Rotating ring 206 is fixedly connected to multiple drive racks 205. Drive block 207 is movably mounted inside drive base 101. Electric cylinder 209 is mounted on drive base 101. Drive block 207 is fixedly mounted on electric cylinder 209. At the output end of 09, the rotating ring 206 has an annular groove that matches the drive block 207. The electric cylinder 209 can drive the drive block 207 to move axially along the central ring 201, thereby causing the rotating ring 206 and multiple drive racks 205 to move synchronously, driving the driven gear 204 and drive screw 203 to rotate synchronously, and causing the adjusting block 208 to move along the adjusting track 202 to change the cutting radius of the bevel cutting blade 2. A slider is fixedly connected to the drive rack 205, and a groove matching the slider is provided on the central ring 201. The rotating plate 102 can drive the central ring 201, the adjusting track 202, and the bevel cutting blade 2 to rotate around the axis of the pipe. The central ring 201 can drive the drive rack 205 and the rotating ring 206 to rotate, so that the drive rack 205 maintains stable meshing with the driven gear 204. Through the matching sliding of the annular groove of the drive block 207 and the rotating ring 206, it can cooperate with the rotation of the central ring 201 and the rotating ring 206, and at the same time drive the rotating ring 206 to move along the axial direction of the central ring 201 to drive the drive rack 205.

[0027] The external clamping mechanism is mounted on the frame 1 and is used to support and clamp the outer wall of the pipe, aligning the pipe's axis of rotation with the rotation axis of the beveling cutter 2. Figure 1 , Figure 2 , Figure 8 and Figure 9As shown, the external clamping mechanism includes a support base 301, a limiting semi-ring 302, and a clamping block 303. The support base 301 is fixedly mounted on the frame 1. Multiple limiting semi-rings 302 are provided, stacked sequentially and mounted on the support base 301. The multiple limiting semi-rings 302 are coaxially arranged. To improve the stability between the limiting semi-rings 302, multiple inserts 304 are fixedly connected to the bottom of the limiting semi-rings 302. The top of the limiting semi-rings 302 and the top of the support base 301 are both provided with slots that match the inserts 304. Through the cooperation of the inserts 304 and the slots, the multiple limiting semi-rings 302 can be stably stacked sequentially to form a ring structure. A lifting seat is fixedly connected to the limiting semi-rings 302, which can be disassembled and installed on the support base with the assistance of lifting equipment. On the base 301, the inner arc surface of the uppermost limiting semi-ring 302 is in contact with the outer wall of the pipe. The clamping block 303 is elliptical and mounted on the support base 301 to press down the outer wall of the pipe. A mounting frame is fixedly mounted on the top of the support base 301, and a hydraulic cylinder 305 is mounted on the mounting frame. The clamping block 303 is fixedly mounted on the output end of the hydraulic cylinder 305. The limiting semi-ring 302 is in contact with the outer wall of the pipe. By adjusting the number of limiting semi-rings 302 to match the outer diameter of the pipe to be processed, the pipe can be stably supported and initially positioned. The clamping block 303 can be lowered by the hydraulic cylinder 305 to stably clamp the pipe between the limiting semi-ring 302 and the clamping block 303. The axis of the limiting semi-ring 302 coincides with the axis of the rotating plate 102, which can realize the concentric processing of the pipe and the beveling cutter 2.

[0028] The internal expansion clamping mechanism is mounted on frame 1 and is used to perform multi-point uniform expansion clamping on the inner wall of the pipe, such as... Figure 4 , Figure 10 and Figure 11As shown, the internal expansion clamping mechanism includes a central shaft 401, a fixed block 402, a moving ring 403, an internal expansion block 404, and a drive frame 405. The central shaft 401 is movably mounted on the frame 1. An electric cylinder 406 is mounted on the frame 1. The central shaft 401 is fixedly mounted at the output end of the electric cylinder 406. The central shaft 401 passes through the tool drive mechanism and is coaxially arranged with the tube. The central shaft 401 passes through the central ring 201 and there is a gap between the central shaft 401 and the drive seat 101. The central shaft 401 and the drive seat 101 are in sliding engagement. The fixed block 402 is fixedly mounted at the end of the central shaft 401. The moving ring 403 can slide along the axial direction of the central shaft 401. The central shaft 401 has a hollow structure. An electric cylinder 407 is installed inside the central shaft 401. A drive plate 408 is fixedly connected to the inner side of the moving ring 403. A moving groove for the drive plate 408 to move is opened on the central shaft 401. The internal expansion block 404 is rotatably connected to a rotating frame 405. 09. The rotating frame 409 and the fixed block 402 are rotatably connected. The two ends of the drive frame 405 are rotatably connected to the moving ring 403 and the rotating frame 409, respectively. The electric cylinder 407 can drive the drive plate 408 and the moving ring 403 to slide along the central axis 401, thereby driving the drive frame 405 to rotate and pushing the rotating frame 409 and the inner expansion block 404 to expand or contract radially. The electric cylinder 406 can push the inner expansion clamping mechanism into the pipe. When entering the pipe, the inner expansion block 404 is in a contracted state. After entering the pipe, the electric cylinder 407 pushes the moving ring 403 close to the fixed block 402 to lift the inner expansion block 404. Multiple inner expansion blocks 404 move synchronously and stick to the inner wall of the pipe to provide auxiliary support and positioning for the inside of the pipe. This further makes the axis of the pipe correspond to the axis of the rotating plate 102, that is, coincide with the rotation axis of the bevel cutting blade 2, thus improving the processing accuracy.

[0029] like Figure 3 As shown, the bottom of the auxiliary support base 3 is equipped with rollers, and the support frame 4 is raised and lowered on the auxiliary support frame to support the pipe. The auxiliary support frame is equipped with a screw feed mechanism 5, and the support frame 4 is installed on the screw nut of the screw feed mechanism 5. The position of the auxiliary support base 3 can be adjusted by the rollers so that the support frame 4 is on the side of the pipe away from the bevel cutting blade 2 and supports its bottom. The height of the support frame 4 can be adjusted by the screw feed mechanism 5 to keep the pipe horizontal and stable, and to avoid the pipe from tilting up under the action of gravity, which would cause processing errors.

[0030] like Figures 1 to 2As shown, the protective cover 6 is detachably mounted on the drive base 101 by bolts. The beveling cutter 2 is located inside the protective cover 6. A chip discharge port is provided at the bottom of the protective cover 6. The chip collection groove 7 is fixedly mounted on the frame 1 and is located below the end of the pipe. The positioning plate 8 is movably mounted on the frame 1 for positioning the end of the pipe. An electric cylinder 9 is mounted on the frame 1. The positioning plate 8 is fixedly mounted on the output end of the electric cylinder 9. The electric cylinder 9 can move the positioning plate 8 closer to or further away from the pipe to position the processed end of the pipe, thereby facilitating... After adjusting the distance between the beveling cutter 2 and the pipe end, the positioning plate 8 is moved away from the pipe after positioning to avoid obstructing the beveling process. The positioning plate 8 is positioned above the chip collection groove 7, so that the beveling position is above the chip collection groove 7. The protective cover 6 protects the area around the beveling position. The chips generated by the beveling cut splash along the tangential direction to the inner wall of the protective cover 6 and slide into the inside of the chip collection groove 7 for collection, reducing the impact on the operator, improving the safety of the operation, and facilitating the collection of chips, thus reducing the cleaning work.

[0031] To remove debris from inside the pipe, a debris blowing assembly is also included. This assembly is mounted on the inner expansion clamping mechanism and is used to blow debris from the bottom inner side of the pipe. The debris blowing assembly includes an air supply pipe 501 and a purge pipe 502. The fixing block 402 is a hollow structure and is connected to an air supply device via the air supply pipe 501. The lower inner expansion block 404 is also hollow, and the purge pipe 502 is connected to it. A transfer pipe 503 is fixedly mounted on the lower rotating frame 409. Both ends of the transfer pipe 503 are connected to a telescopic hose and the fixing block 402, respectively, and to the lower inner expansion block 404. The inner expansion block 404 is connected, and the air outlet of the purge pipe 502 faces the end of the pipe. The inner expansion block 404 and the fixed block 402 located at the bottom are connected. The air supply pipe 501 is located inside the central shaft 401. The external air supply equipment sends gas into the fixed block 402 through the air supply pipe 501, and then into the inner expansion block 404 located at the bottom through the telescopic hose and the transfer pipe 503. The gas is then blown out along the purge pipe 502. The purge pipe 502 moves with the inner expansion block 404 to a lower position close to the inner side of the pipe, so that the debris inside the pipe can be blown out. Under the blocking action of the rotating plate 102 and the protective cover 6, the debris falls into the inside of the chip collection trough 7.

[0032] The working principle or usage process of the beveling machine for metal pipe processing is as follows: The operator first selects an appropriate number and thickness of limiting half rings 302 according to the outer diameter of the pipe to be processed. The limiting half rings 302 are then stacked on the support base 301 in sequence using a hoisting device, so that the inner arc surface of the uppermost limiting half ring 302 can fit against the outer wall of the pipe. At the same time, according to the length of the pipe, the auxiliary support 3 is moved to a suitable position, and the lifting height of the support frame 4 is adjusted so that it can support the bottom of the pipe for subsequent placement of the pipe. The metal pipe to be processed is hoisted above the support frame 4 and the limiting half ring 302. The positioning plate 8 is moved between the pipe and the bevel cutting blade 2 in advance. The pipe is pushed towards the bevel cutting blade 2 so that its end abuts against the positioning plate 8. The axial position of the pipe is initially positioned. After positioning is completed, the positioning plate 8 is moved away from the pipe to avoid affecting subsequent processing. Then, the hydraulic cylinder 305 is activated to drive the clamping block 303 to move downward, fixing the pipe between the limiting half ring 302 and the clamping block 303. The pipe is initially constrained radially. Then, the electric cylinder 406 is activated to drive the central shaft 401 to move axially into the pipe, so that the internal expansion clamping mechanism moves into the pipe. After the central shaft 401 moves into place, the electric cylinder 407 is activated, and the driving plate 408 drives the moving ring 403 to slide axially along the central shaft 401. The driving frame 405 pushes the rotating frame 409, so that the rotating frame 409 opens outward around its rotating connection with the fixed block 402, driving multiple internal expansion blocks 404 to move radially outward synchronously, and perform multi-point uniform expansion clamping from the inner wall of the pipe, so that the axis of the pipe coincides with the rotation axis of the central shaft 401 and the bevel cutting blade 2. According to the diameter of the pipe and the required beveling depth, a suitable adjustable beveling cutter 2 is selected and installed on the adjusting block 208. The electric cylinder 209 drives the drive block 207 to move along the axial direction of the central ring 201. When the drive block 207 moves, it drives the rotating ring 206 and multiple drive racks 205 to move along the axial direction of the central ring 201, thereby driving the driven gear 204 and the drive screw 203 to rotate synchronously, so that the adjusting block 208 moves along the adjusting track 202 to adjust the distance between the beveling cutter 2 and the axis of the rotating plate 102. After adjustment, motor 107 drives drive shaft 104 to rotate, thereby driving rotating plate 102 and the central ring 201 and adjusting track 202 fixed on it to rotate together. Bevel cutting blade 2 rotates accordingly. Electric cylinder 103 drives drive seat 101 to move towards the pipe. While rotating, bevel cutting blade 2 approaches the end of the pipe and performs bevel cutting on the end of the pipe. At the same time, multiple bevel cutting blades 2 limit the end of the pipe. The high-temperature chips generated during cutting are blocked by the protective cover 6 and fall into the chip collection groove 7 under the action of gravity for collection. During the processing, the air supply equipment enters the fixed block 402 through the air supply pipe 501 and enters the inner expansion block 404 located at the bottom through the telescopic hose. The gas is sprayed out from the blow pipe 502, blowing the chips from the bottom of the inner side of the pipe to the end of the pipe. The blown chips fall into the chip collection groove 7. At the same time, the gas cools down the equipment and extends the tool life. After the beveling is completed, stop the rotation of the rotating plate 102, the drive seat 101 returns to its original position, and the electric cylinder 407 reverses its action to cause the inner expansion block 404 to retract inward and close to the central shaft 401, releasing the tension on the inner wall of the pipe. The hydraulic cylinder 305 drives the clamping block 303 to rise, releasing the tension on the outer wall of the pipe. Remove the processed pipe from the support frame 4 and the limiting half ring 302. Clean the debris in the chip collection groove 7 regularly. If the next pipe needs to be processed, repeat the above steps.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A beveling machine for processing metal pipes, comprising a frame (1) and a beveling cutter (2), characterized in that, The beveling cutter (2) is provided in multiple parts, and also includes: A tool driving mechanism is used to adjust the rotation radius of the beveling cutter (2) and drive the beveling cutter (2) to rotate and approach the pipe; An external clamping mechanism is provided on the frame (1) for supporting and clamping the outer wall of the pipe and making the axis of the pipe coincide with the rotation axis of the bevel cutting blade (2); An internal expansion clamping mechanism is provided on the frame (1) and is used to perform multi-point uniform expansion clamping on the inner wall of the pipe. Auxiliary support base (3), the bottom of which is provided with rollers; Support frame (4), which can be raised and lowered on the auxiliary support frame, is used to support the support material; A protective cover (6) is detachably mounted on the tool driving mechanism. The bevel cutting tool (2) is located inside the protective cover (6). A chip discharge port is provided at the bottom of the protective cover (6). Chip collection groove (7), the chip collection groove (7) is fixedly installed on the frame (1), and the chip collection groove (7) is located below the end of the pipe; Positioning plate (8), which is movably mounted on the frame (1), is used to position the end of the pipe.

2. The beveling machine for metal pipe processing according to claim 1, characterized in that, The tool driving mechanism includes: A drive base (101) is movably mounted on the frame (1); A rotating plate (102) is rotatably mounted on the drive seat (101); A tool adjustment assembly is used to synchronously adjust the distance between the axes of the multiple beveling cutters (2) and the rotating plate (102) to accommodate different pipe diameters.

3. A beveling machine for processing metal pipes according to claim 2, characterized in that, The tool adjustment assembly includes: A central ring (201) is fixedly mounted on the rotating plate (102); Adjustment rail (202), multiple adjustment rails (202) are provided, each adjustment rail (202) corresponds to the bevel cutting blade (2), the adjustment rail (202) is fixedly connected to the central ring (201), and an adjustment block (208) is slidably provided inside the adjustment rail (202), and the bevel cutting blade (2) is installed on the adjustment block (208); A drive screw (203) is rotatably disposed inside the adjusting rail (202), and the adjusting block (208) and the drive screw (203) are threadedly connected. Driven gear (204), the driven gear (204) is fixedly disposed at the end of the drive screw (203); A drive rack (205) is slidably disposed on the central ring (201), and the drive rack (205) meshes with the driven gear (204); A rotating ring (206) is fixedly connected to a plurality of the drive racks (205); The drive block (207) is movably disposed inside the drive seat (101), and the rotating ring (206) has an annular groove that matches the drive block (207).

4. A beveling machine for processing metal pipes according to claim 1, characterized in that, The external clamping mechanism includes: A support base (301) is fixedly mounted on the frame (1); A limiting half ring (302) is provided in multiple ways. Multiple limiting half rings (302) are stacked in sequence and installed on the support base (301). The inner arc surface of the uppermost limiting half ring (302) is in contact with the outer wall of the pipe. A clamping block (303) is elliptical and can be mounted on the support base (301) for pressing down the outer wall of the pipe.

5. A beveling machine for processing metal pipes according to claim 1, characterized in that, The internal expansion clamping mechanism includes: A central shaft (401) is movably mounted on the frame (1), the central shaft (401) passes through the tool drive mechanism and is coaxially mounted with the tube; A fixing block (402) is fixedly disposed at the end of the central shaft (401); A movable ring (403) is capable of sliding along the central axis (401) axially; An inner expansion block (404) is rotatably connected to a rotating frame (409), and the rotating frame (409) is rotatably connected to the fixed block (402); The drive frame (405) is rotatably connected at both ends to the moving ring (403) and the rotating frame (409), respectively.

6. A beveling machine for processing metal pipes according to claim 5, characterized in that, It also includes a chip blowing assembly, which is disposed on the inner expansion clamping mechanism and is used to blow out debris from the bottom inner side of the pipe.

7. A beveling machine for processing metal pipes according to claim 6, characterized in that, The chip blowing assembly includes: The gas supply pipe (501) and the fixing block (402) are hollow structures. The fixing block (402) is connected to the gas supply equipment through the gas supply pipe (501). The purge pipe (502) has a hollow inner expansion block (404) at the bottom. The purge pipe (502) and the inner expansion block (404) at the bottom are connected. The air outlet of the purge pipe (502) faces the end of the pipe. The inner expansion block (404) at the bottom is connected to the fixing block (402).

8. A beveling machine for processing metal pipes according to claim 2, characterized in that, The rotating plate (102) is rotatably mounted on the drive seat (101) via a hollow drive shaft (104). A driven gear ring (105) is fixedly mounted on the outside of the drive shaft (104), and a drive gear (106) is rotatably mounted inside the drive seat (101). The driven gear ring (105) and the drive gear (106) mesh with each other.

9. A beveling machine for processing metal pipes according to claim 5, characterized in that, The central shaft (401) is a hollow structure. An electric cylinder (407) is installed inside the central shaft (401). A drive plate (408) is fixedly connected to the inner side of the moving ring (403). A moving groove is provided on the central shaft (401) for the drive plate (408) to move.

10. A beveling machine for processing metal pipes according to claim 4, characterized in that, The bottom of the limiting half ring (302) is fixedly connected with a plurality of inserts (304), and the top of the limiting half ring (302) and the top of the support base (301) are provided with slots that match the inserts (304).

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