A pipe skin grinding device

Abstract

This invention relates to the field of pipe processing technology and discloses a pipe fitting outer skin grinding device, including a frame, a grinding head mounted on the frame, and a drive motor for driving the grinding head to rotate. The frame is equipped with a clamping assembly, a conveying assembly, a steering assembly, and a support assembly. The clamping assembly is used to clamp the end of the pipe fitting. The conveying assembly is used to drive the clamped pipe fitting to move linearly along the frame and be ground under the grinding head. The steering assembly is used to drive the clamped pipe fitting to rotate relative to the frame. The support assembly is used to support the pipe fitting and assist in its rotation. This invention has the following advantages and effects: it enables the linear conveying and rotation of the pipe fitting to be synchronized, thereby achieving comprehensive grinding of the pipe fitting's outer skin.

Description

Technical Field

[0001] This invention relates to the field of pipe processing technology, and in particular to a device for grinding the outer skin of pipe fittings. Background Technology

[0002] Before production, processing, or use, pipe fittings often require surface treatment, such as removing oxide layers, peeling off old paint or plastic coatings, cleaning welding slag, and surface polishing, to meet the process requirements for corrosion protection, welding, painting, or direct use. Some semi-automatic or simple pipe fitting grinding and peeling equipment has also appeared on the market. However, these devices usually have limited functionality or design limitations. Some equipment can only achieve linear conveying of pipe fittings or can only achieve rotation, resulting in a limited grinding area. For example, some peeling equipment that uses rotating pipe fittings and rotating grinding tools lacks clamping devices, making the pipe fittings prone to radial runout, vibration, or even being thrown out under high-speed rotation and cutting force. This not only damages the uniformity and precision of the surface treatment but also poses significant operational safety hazards. On the other hand, some peeling equipment that uses linear transport of pipe fittings and grinding mechanisms (such as grinding heads and grinding tools) that rotate around the circumference of the pipe fitting often relies on manual disassembly or rough adjustment for the grinding mechanism. This adjustment process is not only cumbersome and time-consuming but also makes it difficult to guarantee the processing accuracy after adjustment. Consequently, the equipment lacks versatility and rapid changeover capability when facing the production needs of multiple specifications of pipe fittings. Summary of the Invention

[0003] The purpose of this invention is to provide a pipe fitting outer skin grinding device that enables the linear conveying and rotation of the pipe fitting to be synchronized, thereby achieving the effect of comprehensive grinding of the pipe fitting.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a pipe fitting outer skin grinding device, comprising a frame, a grinding head mounted on the frame, and a drive motor for driving the grinding head to rotate. The frame is provided with a clamping assembly, a conveying assembly, a steering assembly, and a support assembly. The clamping assembly is used to clamp the end of the pipe fitting. The conveying assembly is used to drive the clamped pipe fitting to move linearly along the frame and be ground below the grinding head. The steering assembly is used to drive the clamped pipe fitting to rotate relative to the frame. The support assembly is used to support the pipe fitting and assist the pipe fitting in rotating.

[0005] By adopting the above technical solution, the pipe is placed on the support assembly, the clamping assembly holds the pipe and drives the pipe to move linearly on the support assembly, so that the pipe is ground under the grinding head. At the same time, the steering assembly drives the pipe to rotate and pass through the grinding head, so as to efficiently and evenly peel off the specific material on the outer layer of the pipe to meet the process requirements of subsequent processing or direct use. Both the support assembly and the clamping assembly can adapt to pipes of different diameters to meet the processing needs of various pipes.

[0006] A further configuration of the present invention is as follows: the clamping assembly includes a drive box and a first rotating shaft installed inside the drive box; the steering assembly drives the first rotating shaft to rotate; a sleeve is slidably fitted onto the first rotating shaft; a plurality of annular teeth are uniformly fixed along the axial direction on the sleeve; a second rotating shaft and a worm gear are rotatably connected inside the drive box; a worm wheel meshing with the worm gear and a first gear meshing with the annular teeth are fixed on the second rotating shaft; a clamping motor that drives the worm gear to rotate is installed inside the drive box; a movable box is fixed to the end of the first rotating shaft; a first screw is rotatably connected inside the movable box; a second gear meshing with the annular teeth is fixed to the middle of the first screw; both ends of the first screw are provided with reverse threads and are threadedly connected to a clamping rod that slides in the movable box; a clamping plate is fixed to the end of the clamping rod.

[0007] By adopting the above technical solution, during operation, the conveying component drives the clamping component to move, so that the clamping plate extends from the pipe opening into the inside of the pipe fitting. Then, the clamping motor is started to drive the worm gear to rotate, thereby rotating the second rotating shaft and the first gear. Through the ring gear, the sleeve is pushed to slide outside the first rotating shaft, so that the sleeve drives the second gear to rotate again through the ring gear, thereby rotating the first screw. This causes the clamping rods on both sides to move away from each other until the clamping plates on both sides are in contact with the inner wall surface of the pipe fitting, realizing the internal support, clamping and feeding of the pipe fitting. This can effectively suppress the vibration and jumping of the pipe fitting during rotation and feeding, improve processing stability, and also eliminate processing dead zones, so that the material on the entire outer circumference surface of the entire pipe fitting from end to end can be peeled off.

[0008] A further configuration of the present invention is as follows: the steering assembly includes a third shaft and a fourth shaft rotatably connected to the drive box; a third gear is fixed to the first shaft; a fourth gear meshing with the third gear is fixed to one end of the third shaft; a first bevel tooth is fixed to the other end of the third shaft; a first rack is fixed to the frame; a second bevel tooth meshing with the first bevel tooth is fixed to one end of the fourth shaft; and a fifth gear meshing with the first rack is fixed to the other end of the fourth shaft.

[0009] By adopting the above technical solution, when the conveying component drives the clamping component and the clamped pipe to move linearly along the frame and pass under the grinding head, the fifth gear meshes with the first rack and rotates, thereby rotating the fourth shaft and the second bevel gear, which in turn drives the first bevel gear, the third shaft and the fourth gear to rotate, thereby rotating the third gear and the first shaft, which in turn drives the movable box, the clamping rod and the clamped pipe to rotate, thus realizing the all-round grinding and peeling work on the outer surface of the pipe.

[0010] A further configuration of the present invention is as follows: the conveying assembly includes a second screw rotatably connected to the frame, a second guide rod fixed to the frame and arranged parallel to the second screw, and a conveying motor installed on the frame to drive the second screw to rotate. A connecting frame is slidably mounted on the second guide rod, and the clamping assembly is mounted on the connecting frame. The end of the connecting frame away from the second guide rod is threadedly connected to the second screw.

[0011] By adopting the above technical solution, the pipe is placed on the support assembly with one end of the pipe located below or to the side of the grinding head. The conveyor motor is started to drive the second screw to rotate, and the second screw drives the connecting frame and clamping assembly to move until the clamping plate extends into the inside of the pipe from the pipe opening, so that the clamping assembly clamps the pipe. The conveyor motor is started again to drive the second screw to rotate in the opposite direction, so that the clamping assembly drives the pipe to be ground and peeled from the end through the grinding head.

[0012] A further provision of the present invention is that: two sets of the support components are mirror images of each other, each support component includes a support frame and a plurality of support rollers rotatably connected to the support frame, and an adjustment component is provided on the frame to drive the two sets of the support components to slide mirror images on the frame.

[0013] By adopting the above technical solution, the support frame and support rollers are used to support the pipe fittings, improve the stability of the peeling operation, and at the same time, the support rollers can reduce rotational friction, so that the clamping assembly and steering assembly can drive the pipe fittings to rotate stably; the adjustment assembly can adjust the distance between the support rollers on both sides according to the pipe fitting diameter to better support the pipe fittings.

[0014] A further configuration of the present invention is as follows: the adjustment assembly includes a third screw that rotates on both sides of the frame and is perpendicular to the second screw, and an adjustment motor installed on the frame to drive the third screw to rotate. The support frame is connected between the two third screws. The two ends of the third screw are provided with reverse threads, and the two support frames are respectively threaded to the two ends of the third screw. Sprockets are fixed at the ends of the two third screws, and a chain belt is sleeved between the two sprockets.

[0015] By adopting the above technical solution, the third screw is driven to rotate by starting the adjustment motor. The third screws on both sides rotate synchronously through the sprocket and chain belt, which drives the support frames on both sides to move in a mirror image to adjust the position of the support frames and support rollers.

[0016] A further configuration of the present invention is as follows: one side of the frame is the feeding end and the other side is the discharging end, and it also includes a discharge frame located below the support roller at the discharging end, wherein a discharge conveyor belt is provided on the discharge frame.

[0017] By adopting the above technical solution, the pipe is placed on the support roller at the feeding end. The clamping assembly drives the pipe to move from the feeding end to the discharging end. After the pipe is completely peeled, it is located at the discharging end and above the unloading frame and the unloading conveyor belt. The clamping assembly releases the pipe, and the adjusting motor is started to drive the third screw to rotate so that the two support frames move away from each other and no longer support the pipe, so that the pipe moves into the unloading conveyor belt, realizing the automatic unloading of the pipe.

[0018] A further feature of the present invention is that it also includes a support frame, on which support cylinders located on both sides of the unloading conveyor belt are fixed. A rotating cylinder is rotatably connected to the support cylinder. Pulleys are fixed to both sides of the rotating cylinder. A belt is sleeved between the two pulleys. The rotating cylinder is provided with an internal thread and is threadedly connected to a fourth screw. A support plate is fixed to the upper end of the fourth screw. A support groove is provided on the support plate. The bottom end slides and rises and falls within the support cylinder.

[0019] By adopting the above technical solution, during unloading, the support plate is located near the bottom of the support roller. When the two support rollers move away from each other, the support roller no longer supports the pipe and acts as a guide to move the pipe between the two support plates. This avoids the impact and wear caused by the height difference between the support roller and the unloading conveyor belt, where the pipe falls directly onto the unloading conveyor belt. After the two support plates catch the pipe, the two rotating drums rotate synchronously through pulleys and belts, driving the fourth screw, which is threaded to them, to slide down relative to the support drum, placing the supported pipe onto the unloading conveyor belt, thus achieving stable and automatic unloading of the pipe. The support groove is used to stably support the pipe and prevent it from slipping off.

[0020] A further provision of the present invention is that a sixth gear is fixed to one of the rotating drums, and a second rack is fixed to the bottom of the connecting frame, which meshes with the sixth gear and drives the sixth gear to rotate.

[0021] By adopting the above technical solution, when the clamping assembly moves away from the grinding head at the discharge end, the second rack on the connecting frame drives the sixth gear to rotate, thereby rotating one drum. The two drums rotate synchronously through pulleys and belts, driving the fourth screw and support plate to rise until the support plate is close to the bottom of the support roller. At this time, the clamping assembly completes the processing of the clamped pipe, and the two support rollers move away and no longer support the pipe. The two support plates support the pipe falling from the support rollers. When the conveying assembly drives the clamping assembly to move closer to the grinding head again to prepare to clamp the next pipe, the second rack drives the sixth gear to rotate in the opposite direction again, thereby the four screws and support plates on both sides support the pipe and lower it, moving the pipe onto the unloading conveyor belt to achieve automatic unloading. After the pipe leaves the support roller, the adjusting assembly can drive the two support rollers to move closer to support the next pipe.

[0022] A further configuration of the present invention is as follows: a fixed frame is fixed on the frame, a cylinder is mounted on the fixed frame, a processing frame is fixed to the output end of the cylinder, and the grinding head and the drive motor are mounted on the processing frame.

[0023] By adopting the above technical solution, the grinding head is driven to rotate by a drive motor, and the height of the processing frame and the grinding head is adjusted by a cylinder.

[0024] The beneficial effects of this invention are:

[0025] 1. By placing the pipe fitting on the support assembly, the clamping assembly holds the pipe fitting and drives the pipe fitting to move linearly on the support assembly, so that the pipe fitting is ground under the grinding head. At the same time, the steering assembly drives the pipe fitting to rotate and pass through the grinding head, so as to efficiently and evenly peel off the specific material on the outer layer of the pipe fitting to meet the process requirements of subsequent processing or direct use.

[0026] 2. The clamping assembly enables the internal support and clamping of pipes of different diameters, which can effectively suppress the vibration and jumping of the pipes during rotation and feeding, improve processing stability, eliminate processing dead zones, and allow the material on the entire outer surface of the pipe from end to end to be peeled off.

[0027] 3. The support frame and support rollers are used to support the pipe fittings and improve the stability of the peeling operation. At the same time, the support rollers can reduce rotational friction, enabling the clamping assembly and steering assembly to drive the pipe fittings to rotate stably. The adjustment assembly can adjust the distance between the support rollers on both sides according to the pipe fitting diameter to better support the pipe fittings.

[0028] 4. The clamping assembly releases the pipe fitting, and the adjusting motor drives the third screw to rotate, causing the two side support frames to move away from each other and no longer support the pipe fitting, so that the pipe fitting moves into the unloading conveyor belt, realizing the automatic unloading of the pipe fitting;

[0029] 5. During unloading, the support plate is located near the bottom of the support roller. When the two support rollers move away from each other, the support roller no longer supports the pipe and acts as a guide to move the pipe between the two support plates. This can avoid the impact and wear caused by the height difference between the support roller and the unloading conveyor belt, and the pipe falling directly onto the unloading conveyor belt. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0031] Figure 1 This is a schematic diagram of the structure of the present invention.

[0032] Figure 2 This is a schematic diagram of the connection relationship between the connecting frame and the clamping assembly in this invention.

[0033] Figure 3 This is a schematic diagram of the internal structure of the drive box and the moving box in this invention.

[0034] Figure 4 This is a schematic diagram showing the connection relationship between the support plate, the fourth screw, and the connecting frame in this invention.

[0035] In the diagram, 1. Frame; 2. Grinding head; 3. Drive motor; 4. Clamping assembly; 401. Drive box; 402. First rotating shaft; 403. Sleeve; 404. Ring gear; 405. Second rotating shaft; 406. Worm gear; 407. Worm wheel; 408. First gear; 409. Clamping motor; 410. Movable box; 411. First screw; 412. Second gear; 413. Clamping rod; 414. Clamping plate; 5. Conveying assembly; 501. Second screw; 502. Second guide rod; 503. Conveying motor; 504. Connecting frame; 6. Steering assembly; 601. Third rotating shaft; 602. Fourth rotating shaft; 603. Third gear; 604, Fourth gear; 605, First bevel gear; 606, First rack; 607, Second bevel gear; 608, Fifth gear; 7, Support assembly; 701, Support frame; 702, Support roller; 8, Adjustment assembly; 801, Third screw; 802, Chain belt; 9, Feed end; 10, Discharge end; 11, Unloading frame; 12, Unloading conveyor belt; 13, Support frame; 14, Support cylinder; 15, Rotary drum; 16, Belt; 17, Fourth screw; 18, Support plate; 19, Support groove; 20, Sixth gear; 21, Second rack; 22, Fixed frame; 23, Cylinder; 24, Processing frame; 25, Pulley. Detailed Implementation

[0036] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] Example 1: A device for grinding the outer skin of pipe fittings, such as... Figure 1-2As shown, the assembly includes a frame 1, a grinding head 2 mounted on the frame 1, and a drive motor 3 that drives the grinding head 2 to rotate. The frame 1 is equipped with a clamping assembly 4, a conveying assembly 5, a steering assembly 6, and a support assembly 7. The clamping assembly 4 clamps the end of the pipe fitting. The conveying assembly 5 drives the clamped pipe fitting to move linearly along the frame 1 and be ground under the grinding head 2. The steering assembly 6 drives the clamped pipe fitting to rotate relative to the frame 1. The support assembly 7 supports the pipe fitting and assists in its rotation. By placing the pipe fitting on the support assembly 7, the clamping assembly 4 clamps the pipe fitting and drives it to move linearly along the support assembly, allowing the pipe fitting to be ground under the grinding head 2. Simultaneously, the steering assembly 6 drives the pipe fitting to rotate past the grinding head 2, ultimately efficiently and uniformly peeling off the specific material from the outer layer of the pipe fitting to meet the process requirements of subsequent processing or direct use.

[0038] like Figure 2-3 As shown, the clamping assembly 4 includes a drive housing 401 and a first rotating shaft 402 installed inside the drive housing 401. The steering assembly 6 drives the first rotating shaft 402 to rotate. A sleeve 403 is slidably fitted onto the first rotating shaft 402. Multiple annular teeth 404 are evenly fixed along the axial direction on the sleeve 403. A second rotating shaft 405 and a worm gear 406 are rotatably connected inside the drive housing 401. A worm wheel 407 that meshes with the worm gear 406 and a first tooth that meshes with the annular teeth 404 are fixed on the second rotating shaft 405. The wheel 408 and the drive box 401 are equipped with a clamping motor 409 that drives the worm gear 406 to rotate. The end of the first rotating shaft 402 is fixed with a movable box 410. The movable box 410 is rotatably connected with a first screw 411. The middle of the first screw 411 is fixed with a second gear 412 that meshes with the ring gear 404. The two ends of the first screw 411 are provided with reverse threads and are threadedly connected to a clamping rod 413 that slides in the movable box 410. The end of the clamping rod 413 is fixed with a clamping plate 414. During operation, the conveying component 5 drives the clamping component 4 to move, causing the clamping plate 414 to extend from the pipe opening into the pipe fitting. Then, the clamping motor 409 is started, driving the worm gear 406 and worm wheel 407 to rotate. This causes the second rotating shaft 405 and the first gear 408 to rotate, pushing the sleeve 403 to slide outside the first rotating shaft 402 through the ring gear 404. The sleeve 403 then drives the second gear 412 to rotate again through the ring gear 404, causing the first screw 411 to rotate. This causes the clamping rods 413 on both sides to move away from each other until the clamping plates 414 on both sides are in contact with the inner wall of the pipe fitting. This achieves internal support, clamping, and feeding of the pipe fitting, effectively suppressing vibration and jumping of the pipe fitting during rotation and feeding, and improving processing stability.

[0039] The invention is further configured such that the movable box 410 is provided with a sliding hole, and the clamping rod 413 passes through the sliding hole and is fixedly connected to the clamping plate 414.

[0040] The invention is further configured such that the clamping plate 414 is an arc-shaped plate, used to increase the contact area with the inner wall of the pipe and improve clamping stability. A shim can also be added to the outer surface of the clamping plate 414 to increase the friction between the clamping plate 414 and the pipe.

[0041] like Figure 2-3 As shown, the steering assembly 6 includes a third shaft 601 and a fourth shaft 602 rotatably connected within the drive housing 401. A third gear 603 is fixed to the first shaft 402. A fourth gear 604 meshing with the third gear 603 is fixed to one end of the third shaft 601, and a first bevel tooth 605 is fixed to the other end. A first rack 606 is fixed to the frame 1. A second bevel tooth 607 meshing with the first bevel tooth 605 is fixed to one end of the fourth shaft 602, and a fifth gear 608 meshing with the first rack 606 is fixed to the other end. When the conveying component 5 drives the clamping component 4 and the clamped pipe to move linearly along the frame 1 and pass under the grinding head 2, the fifth gear 608 meshes with the first rack 606 and rotates, thereby rotating the fourth shaft 602 and the second bevel gear 607, driving the first bevel gear 605, the third shaft 601 and the fourth gear 604 to rotate, thereby rotating the third gear 603 and the first shaft 402, driving the movable box 410, the clamping rod 413 and the clamped pipe to rotate, realizing the all-round grinding and peeling work on the outer surface of the pipe.

[0042] like Figure 1 As shown, the conveying assembly 5 includes a second screw 501 rotatably connected to the frame 1, a second guide rod 502 fixed to the frame 1 and arranged parallel to the second screw 501, and a conveying motor 503 mounted on the frame 1 to drive the second screw 501 to rotate. A connecting frame 504 slides on the second guide rod 502, and a clamping assembly 4 is mounted on the connecting frame 504. The end of the connecting frame 504 away from the second guide rod 502 is threadedly connected to the second screw 501. When the pipe is placed on the support assembly 7 with one end of the pipe located below or to the side of the grinding head 2, the conveying motor 503 is started to drive the second screw 501 to rotate. The second screw 501 then drives the connecting frame 504 and the clamping assembly 4 to move until the clamping plate 414 extends into the pipe from the pipe opening, so that the clamping assembly 4 clamps the pipe. The conveying motor 503 is started again to drive the second screw 501 to rotate in the opposite direction, so that the clamping assembly 4 drives the pipe to be ground and peeled from the end through the grinding head 2.

[0043] like Figure 1As shown, two sets of support components 7 are mirror-arranged. Each support component 7 includes a support frame 13701 and multiple support rollers 702 rotatably connected to the support frame 13701. An adjustment component 8 is provided on the frame 1 to drive the two sets of support components 7 to slide mirror-on-mirror on the frame 1. The support frame 13701 and support rollers 702 are used to support the pipe fittings and improve the stability of the peeling operation. At the same time, the support rollers 702 can reduce rotational friction, enabling the clamping component 4 and the steering component 6 to drive the pipe fittings to rotate stably. The adjustment component 8 can adjust the distance between the two support rollers 702 according to the diameter of the pipe fitting to better support the pipe fittings.

[0044] like Figure 1 As shown, the adjustment assembly 8 includes a third screw 801 that rotates on both sides of the frame 1 and is perpendicular to the second screw 501, and an adjustment motor mounted on the frame 1 to drive the third screw 801 to rotate. A support frame 13701 is connected between the two third screws 801. The two ends of the third screw 801 are provided with reverse threads, and the two support frames 13701 are respectively threaded to the two ends of the third screw 801. Sprockets are fixed to the ends of the two third screws 801, and a chain belt 802 is sleeved between the two sprockets. By starting the adjustment motor, the third screw 801 is driven to rotate. The two third screws 801 rotate synchronously through the sprockets and chain belt 802, causing the two support frames 13701 to move mirror-image, adjusting the positions of the support frames 13701 and the support roller 702.

[0045] like Figure 1 As shown, the frame 1 has a feed end 9 on one side and a discharge end 10 on the other side. It also includes a discharge rack 11 located below the support roller 702 at the discharge end 10, and a discharge conveyor belt 12 is installed on the discharge rack 11. The pipe is placed on the support roller 702 at the feed end 9, and the clamping assembly 4 moves the pipe from the feed end 9 to the discharge end 10. After the pipe is fully peeled, it is located at the discharge end 10 and above the discharge rack 11 and the discharge conveyor belt 12. The clamping assembly 4 releases the pipe, and the adjusting motor is started to drive the third screw 801 to rotate, so that the two support racks 13701 move away from each other and no longer support the pipe, allowing the pipe to move into the discharge conveyor belt 12, thus realizing the automatic unloading of the pipe.

[0046] like Figure 1 , 4As shown, it also includes a support frame 13701, on which support cylinders 14 located on both sides of the unloading conveyor belt 12 are fixed. The support cylinders 14 are rotatably connected to rotating cylinders 15. Pulleys 25 are fixed on both sides of the rotating cylinders 15. A belt 16 is sleeved between the two side pulleys 25. The rotating cylinders 15 are provided with internal threads and are threadedly connected to a fourth screw 17. A support plate 18 is fixed to the upper end of the fourth screw 17. A support groove 19 is provided on the support plate 18. The bottom end slides and rises within the support cylinder 14. During unloading, the support plate 18 is located near the bottom of the support roller 702. When the two support rollers 702 move away from each other, the support rollers 702 no longer support the pipe and act as a guide to move the pipe between the two support plates 18. This avoids the impact and wear caused by the height difference between the support rollers 702 and the unloading conveyor belt 12, which would otherwise cause the pipe to fall directly onto the unloading conveyor belt 12. After the two support plates 18 catch the pipe, the two rotating drums 15 rotate synchronously through the pulleys 25 and the belt 16, driving the fourth screw 17, which is threaded to it, to slide down relative to the support cylinder 14, placing the supported pipe onto the unloading conveyor belt 12, thus achieving stable and automatic unloading of the pipe. The support groove 19 is used to stably support the pipe and prevent it from slipping off.

[0047] The present invention is further configured such that a limiting groove is provided inside the support cylinder 14, and a limiting rod that slides in the limiting groove is fixed at the bottom end of the fourth screw 17, so that the fourth screw 17 can only slide and rise relative to the support cylinder 14.

[0048] like Figure 4 As shown, a rotating drum 15 is fixed with a sixth gear 20, and a second rack 21 that meshes with the sixth gear 20 and drives the sixth gear 20 to rotate is fixed at the bottom of the connecting frame 504. When the clamping assembly 4 moves away from the grinding head 2 at the discharge end 10, the second rack 21 on the connecting frame 504 drives the sixth gear 20 to rotate, thereby rotating one drum 15. The two drums 15 rotate synchronously through the pulley 25 and belt 16, driving the fourth screw 17 and support plate 18 to rise until the support plate 18 is close to the bottom of the support roller 702. At this time, the clamping assembly 4 has finished processing the clamped pipe, and the two support rollers 702 move away and no longer support the pipe. The two support plates 18 support the pipe falling from the support rollers 702. When the conveying assembly 5 drives the clamping assembly 4 to move closer to the grinding head 2 again to prepare to clamp the next pipe, the second rack 21 drives the sixth gear 20 to rotate in the opposite direction again, thereby the four screws 17 and support plates 18 support the pipe and lower it, moving the pipe onto the unloading conveyor belt 12 to achieve automatic unloading. After the pipe leaves the support roller 702, the adjusting assembly 8 can drive the two support rollers 702 to move closer to support the next pipe.

[0049] like Figure 4As shown, a fixed frame 22 is fixed on the frame 1, and a cylinder 23 is mounted on the fixed frame 22. A processing frame 24 is fixed to the output end of the cylinder 23. The grinding head 2 and the drive motor 3 are mounted on the processing frame 24. The grinding head 2 is driven to rotate by the drive motor 3, and the height of the processing frame 24 and the grinding head 2 is adjusted by the cylinder 23 to achieve precise grinding of the pipe.

Claims

1. A pipe fitting outer skin grinding device, comprising a frame (1), a grinding head (2) mounted on the frame (1), and a drive motor (3) for driving the grinding head (2) to rotate, characterized in that: The frame (1) is provided with a clamping assembly (4), a conveying assembly (5), a steering assembly (6) and a supporting assembly (7). The clamping assembly (4) is used to clamp the end of the pipe. The conveying assembly (5) is used to drive the clamped pipe to move linearly along the frame (1) and be ground under the grinding head (2). The steering assembly (6) is used to drive the clamped pipe to rotate relative to the frame (1). The supporting assembly (7) is used to support the pipe and assist the pipe to rotate.

2. The pipe fitting outer skin grinding device according to claim 1, characterized in that: The clamping assembly (4) includes a drive housing (401) and a first rotating shaft (402) installed inside the drive housing (401). The steering assembly (6) drives the first rotating shaft (402) to rotate. A sleeve (403) is slidably fitted around the first rotating shaft (402). The sleeve (403) has a plurality of annular teeth (404) evenly fixed along the axial direction. A second rotating shaft (405) and a worm gear (406) are rotatably connected inside the drive housing (401). A worm wheel (407) meshing with the worm gear (406) and a first rotating shaft (404) meshing with the annular teeth (404) are fixed on the second rotating shaft (405). Gear (408), a clamping motor (409) for driving the worm (406) to rotate is installed in the drive box (401), a movable box (410) is fixed at the end of the first rotating shaft (402), a first screw (411) is rotatably connected in the movable box (410), a second gear (412) that meshes with the ring gear (404) is fixed in the middle of the first screw (411), the two ends of the first screw (411) are provided with reverse threads and are threadedly connected to a clamping rod (413) that slides in the movable box (410), and a clamping plate (414) is fixed at the end of the clamping rod (413).

3. The pipe fitting outer skin grinding device according to claim 2, characterized in that: The steering assembly (6) includes a third shaft (601) and a fourth shaft (602) rotatably connected to the drive box (401). The first shaft (402) is fixed with a third gear (603). One end of the third shaft (601) is fixed with a fourth gear (604) meshing with the third gear (603), and the other end is fixed with a first bevel tooth (605). A first rack (606) is fixed on the frame (1). One end of the fourth shaft (602) is fixed with a second bevel tooth (607) meshing with the first bevel tooth (605), and the other end is fixed with a fifth gear (608) meshing with the first rack (606).

4. The pipe fitting outer skin grinding device according to claim 1, characterized in that: The conveying assembly (5) includes a second screw (501) rotatably connected to the frame (1), a second guide rod (502) fixed to the frame (1) and arranged parallel to the second screw (501), and a conveying motor (503) installed on the frame (1) to drive the second screw (501) to rotate. A connecting frame (504) slides on the second guide rod (502). The clamping assembly (4) is installed on the connecting frame (504), and the end of the connecting frame (504) away from the second guide rod (502) is threaded to the second screw (501).

5. The pipe fitting outer skin grinding device according to claim 4, characterized in that: The support assembly (7) is provided in two sets. The support assembly (7) includes a support frame (13) (701) and a plurality of support rollers (702) rotatably connected to the support frame (13) (701). The frame (1) is provided with an adjustment assembly (8) that drives the two sets of support assemblies (7) to slide mirror-on the frame (1).

6. The pipe fitting outer skin grinding device according to claim 5, characterized in that: The adjustment assembly (8) includes a third screw (801) that rotates on both sides of the frame (1) and is perpendicular to the second screw (501), and an adjustment motor that drives the third screw (801) to rotate, which is mounted on the frame (1). The support frame (13) (701) is connected between the two third screws (801). The two ends of the third screw (801) are provided with reverse threads, and the two support frames (13) (701) are respectively threaded to the two ends of the third screw (801). The ends of the two third screws (801) are fixed with sprockets, and a chain belt (802) is sleeved between the two sprockets.

7. The pipe fitting outer skin grinding device according to claim 5, characterized in that: The frame (1) has a feeding end (9) on one side and a discharging end (10) on the other side. It also includes a discharge rack (11) located below the support roller (702) at the discharge end (10). The discharge rack (11) is equipped with a discharge conveyor belt (12).

8. The pipe fitting outer skin grinding device according to claim 7, characterized in that: It also includes a support frame (13) (701), on which support cylinders (14) located on both sides of the unloading conveyor belt (12) are fixed. The support cylinders (14) are rotatably connected to a rotating cylinder (15). The rotating cylinders (15) on both sides are fixed with pulleys (25). A belt (16) is sleeved between the pulleys (25) on both sides. The rotating cylinder (15) is provided with an internal thread and is threadedly connected to a fourth screw (17). The upper end of the fourth screw (17) is fixed with a support plate (18). The support plate (18) is provided with a support groove (19). The bottom end slides and rises and falls within the support cylinder (14).

9. A pipe fitting outer skin grinding device according to claim 8, characterized in that: A sixth gear (20) is fixed to one of the rotating drums (15), and a second rack (21) is fixed to the bottom of the connecting frame (504) to mesh with the sixth gear (20) and drive the sixth gear (20) to rotate.

10. A pipe fitting outer skin grinding device according to claim 1, characterized in that: A fixed frame (22) is fixed on the frame (1), a cylinder (23) is installed on the fixed frame (22), a processing frame (24) is fixed at the output end of the cylinder (23), and the grinding head (2) and the drive motor (3) are installed on the processing frame (24).

Images