A metal pipe polishing device

Abstract

The application relates to the technical field of metal pipe polishing, and discloses a metal pipe polishing device, which comprises a base and a driving table, a shell for placing a metal pipe is arranged on the base, a polishing mechanism for polishing the inner wall of the metal pipe is slidably arranged on the driving table, a feeding port is arranged on the shell, a discharging port is arranged on the bottom surface of the shell, two buffer plates are rotatably arranged on the shell at the feeding port, and two rotating rollers are slidably arranged in the shell below the buffer plates. Compared with the prior art, the metal pipe polishing device has the advantages that the height of the abutting wheel can be automatically adjusted according to the diameter of the metal pipe, the spacing between the two rotating rollers is automatically adjusted, the inner wall of the metal pipe is matched with the surface of the polishing wheel, and the polishing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal pipe polishing, in particular to a metal pipe polishing device. BACKGROUND

[0002] After the production of metal pipes, the inner and outer surfaces of the metal pipes need to be polished. Through polishing, the surface roughness of the metal pipes can be improved, the surface of the metal pipes can be made more flat, and the adhesion of the coating can be increased. At the same time, polishing can fine-tune the inner diameter, outer diameter and wall thickness of the metal pipes, so that they can meet the design requirements more.

[0003] When polishing the metal pipe, the metal pipe is first placed on two rotating shafts with a certain distance, and then the polishing device adopts a rotating shaft with a certain length. The input end is driven by a slidable motor, and the output end is fixed with a polishing wheel. The polishing wheel on the rotating shaft is driven to rotate by the motor to polish the inner diameter of the metal pipe. The rotating shaft is driven to move by the motor sliding, so that the polishing wheel moves in the metal pipe to polish different positions. The rotating shaft is driven to rotate by the motor, so that the polishing wheel can uniformly polish the inner wall.

[0004] When polishing metal pipe fittings of different diameters, the distance between the two rotating shafts and the position of the polishing wheel need to be manually adjusted to change the position of the inner wall of the metal pipe and the polishing wheel. When the inner wall of the metal pipe and the polishing wheel are in contact, the adjustment is completed at this time. However, this adjustment method is slow, and when polishing metal pipes of different diameters, the adjustment needs to be made back and forth, which is inconvenient. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the above difficulties and provide a metal pipe polishing device.

[0006] To solve the above technical problems, the technical solution provided by the present application is as follows: a metal pipe polishing device, comprising a base, a driving table, a shell for placing a metal pipe is arranged on the base, a polishing mechanism for polishing the inner wall of the metal pipe is slidably arranged on the driving table, an inlet is arranged on the shell, an outlet is arranged on the bottom surface of the shell, two buffer plates are rotatably arranged on the shell at the inlet, two rotating rollers are slidably arranged in the shell below the buffer plates, a pressing assembly is slidably arranged in the shell above the rotating rollers, the pressing assembly extrudes the metal pipe to make it abut against the two rotating rollers, and an adjusting mechanism for measuring the diameter of the metal pipe through the buffer plate and adjusting the height of the pressing assembly to change the distance between the two rotating rollers is arranged on the buffer plate.

[0007] As an improvement, the compression assembly comprises a cylinder arranged outside the shell, the output end of the cylinder is provided with a square sleeve located in the shell, a plug rod is movably inserted into the square sleeve, one end of the plug rod is provided with an abutting wheel, a sliding hole one is arranged on the square sleeve, a sliding plate one is slidably arranged in the square sleeve, a positioning mechanism for limiting the sliding plate one is arranged on the square sleeve, and an extension rod matched with the adjusting mechanism is arranged on the sliding plate one.

[0008] As an improvement, the adjusting mechanism comprises two sliding plates two slidably arranged in the shell, springs one are arranged between the sliding plates two and the shell, a push column two is arranged at the end of the buffer plate and abuts against the sliding plate two, an inclined plate is arranged on the sliding plate two, the angle between the inclined plate and the sliding plate two is 45°, a sliding groove is arranged on the inclined plate, a U-shaped plate is slidably arranged in the sliding groove, a connecting plate is slidably arranged in the shell, one end of the U-shaped plate is connected with the connecting plate, and a frame body is arranged at the end of the connecting plate and is attached to the bottom surface of the extension rod.

[0009] As an improvement, the positioning mechanism comprises a sleeve arranged on the square sleeve, a cylinder is arranged on the sleeve, a sealing plug one is slidably arranged in the cylinder, a push column one is arranged on the sliding plate one, a sealing plug two is arranged at one end of the push column one and located in the sleeve, the sleeve and the cylinder are filled with filling liquid, and a control mechanism for controlling the closure between the sleeve and the cylinder is arranged on the sleeve.

[0010] As an improvement, an extension column is arranged on the sealing plug one, and springs two are arranged between the extension column and the sealing plug one.

[0011] As an improvement, the control mechanism comprises an extension block arranged on the sleeve, an insertion slot in communication with the inside of the sleeve is arranged on the extension block, a shielding plate is slidably arranged in the insertion slot, springs three are arranged between the shielding plate and the extension block, a lever is hingedly connected to the extension block and provided with a torsional spring between the extension block and the lever, one end of the lever is provided with an extension rod, the end of the extension rod is hingedly connected with the shielding plate, an L-shaped rod one matched with the lever is arranged in the shell, and a top block matched with the lever is arranged in the shell.

[0012] The L-shaped rod one controls the lever to be stationary when moving towards the metal pipe and to rotate when moving away from the metal pipe, and the top block controls the lever to rotate at the initial position.

[0013] As an improvement, a sliding hole two is arranged on the shell, a sliding block is slidably arranged in the sliding hole two, the rotating roller is rotatably arranged on the sliding block, springs four are arranged between the sliding block and the inner wall of the sliding hole two, and a limiting assembly for limiting the two sliding blocks is arranged in the shell.

[0014] As improvement, the limiting assembly comprises a fixed block arranged on the sliding block, a L-shaped rod two is movably inserted on the fixed block and a reset spring is arranged between the fixed block and the L-shaped rod two, a fixed plate is fixedly arranged in the shell, a tooth groove is arranged on the fixed plate, a tooth block matched with the tooth groove is arranged on the L-shaped rod two, an abutting plate abutting with the L-shaped rod two is slidably arranged in the shell, and the abutting plate is driven to move when the polishing mechanism moves.

[0015] As improvement, a strip rod is arranged in the shell, a limiting hole is arranged on the strip rod, and the push column two is slidably arranged in the limiting hole and can rotate.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. By arranging two buffer plates, when the metal pipe is placed from the feeding port to the shell, the buffer plates can have a certain buffering effect, so that the metal pipe can slowly fall between the two rotating shafts;

[0018] 2. When the metal pipe falls on the two buffer plates, by arranging the strip rod, the limiting hole and the push column, the rotating angles of the two buffer plates are kept consistent, when the diameter of the metal pipe abuts against the end portions of the two buffer plates, at this time, the metal pipe can fall, and the distance between the end portions of the two buffer plates is equal to the diameter of the metal pipe;

[0019] 3. By arranging the adjusting mechanism, the horizontal distance of the end portions of the buffer plates is converted into a vertical distance, then the up-down distance of the abutting wheel is changed, the cylinder drives the abutting wheel to move to the middle of the two rotating shafts, the abutting wheel extrudes the metal pipe, so that the inner wall of the metal pipe is attached to the surface of the polishing wheel, thereby automatically adjusting the distance between the rotating shafts, the adjusting speed is fast, and the polishing efficiency is improved;

[0020] 4. By arranging the limiting assembly, when feeding, the two rotating shafts are released, and when polishing, the two rotating shafts are fixed, thereby improving the stability during polishing. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a perspective view of the metal pipe polishing device.

[0022] Figure 2 is a cross-sectional view of the metal pipe polishing device Figure 1 .

[0023] Figure 3 is an internal schematic view of the metal pipe polishing device.

[0024] Figure 4 is a schematic view of the metal pipe polishing device compression assembly.

[0025] Figure 5 is a cross-sectional view of the metal pipe polishing device compression assembly.

[0026] Figure 6 is a kind of metal pipe fitting polishing device adjusting mechanism schematic view of the present application.

[0027] Figure 7 is a kind of metal pipe fitting polishing device control mechanism schematic view of the present application.

[0028] Figure 8 is a kind of metal pipe fitting polishing device profile Figure 2 .

[0029] Figure 9 is a kind of metal pipe fitting polishing device Figure 8 A enlarged view in the middle.

[0030] Figure 10 is a kind of metal pipe fitting polishing device limiting component schematic view of the present application.

[0031] Figure 11 is a kind of metal pipe fitting polishing device control mechanism working schematic Figure 1 .

[0032] Figure 12 is a kind of metal pipe fitting polishing device control mechanism working schematic Figure 2 .

[0033] As shown in the figure: 1, base; 11, metal pipe; 12, shell; 13, feeding port; 14, discharging port; 141, receiving plate; 142, push plate; 143, trapezoidal seat; 144, arc block; 15, adjusting door; 2, driving table; 3, polishing mechanism; 31, driving plate; 32, motor; 33, lead screw; 34, vertical plate; 35, fixed sleeve; 36, driving shaft; 37, polishing wheel; 38, vertical plate; 39, connecting rod; 310, limiting wheel; 311, push rod; 4, buffer plate; 5, rotating roller; 6, pressing assembly; 61, air cylinder; 62, square sleeve; 63, insertion rod; 631, screw rod; 632, U-shaped frame; 633, threaded sleeve; 64, abutting wheel; 65, sliding hole one; 66, sliding plate one; 67, positioning mechanism; 671, sleeve; 672, cylinder; 673, sealing plug one; 6731, telescopic column; 6732, spring two; 6733, trapezoidal block; 674, push column one; 675, sealing plug two; 68, extension rod; 7, adjusting mechanism; 71, sliding plate two; 72, push column two; 73, inclined plate; 74, sliding groove; 75, U-shaped plate; 751, cylinder; 752, moving groove; 76, connecting plate; 77, frame; 78, strip rod; 79, limiting hole; 8, control mechanism; 81, extension block; 82, shielding plate; 83, spring three; 84, push rod; 85, torsional spring; 86, L-shaped rod one; 87, telescopic rod; 88, top block; 9, sliding hole two; 91, sliding block; 92, spring four; 93, limiting assembly; 94, fixed block; 95, L-shaped rod two; 96, fixed plate; 97, tooth block; 98, abutting plate. DETAILED DESCRIPTION

[0034] The application will be further described in detail below with reference to the drawings.

[0035] The drawings show that the metal pipe polishing device comprises a base 1 and a driving table 2. Figure 1 The drawings show that the metal pipe polishing device comprises a base 1 and a driving table 2. Figure 2 The drawings show that the metal pipe polishing device comprises a base 1 and a driving table 2. Figure 3 The drawings show that the metal pipe polishing device comprises a base 1 and a driving table 2.

[0036] Two buffering plates 4 are rotationally arranged on the shell 12 at the feeding port 13 and are provided with reset torsion springs between the buffering plates 4 and the shell 12, two rotating rollers 5 are slidingly arranged in the shell 12 below the buffering plates 4, one of the rotating rollers 5 is driven by a motor, a pressing assembly 6 is slidingly arranged above the rotating rollers 5 in the shell 12, the pressing assembly 6 extrudes the metal pipe 11 to abut against the two rotating rollers 5, the buffering plates 4 are provided with an adjusting mechanism 7 for measuring the diameter of the metal pipe 11 through the buffering plates 4 and adjusting the height of the pressing assembly 6 to change the distance between the two rotating rollers 5;

[0037] The polishing mechanism 3 comprises a driving plate 31 slidingly arranged on the driving table 2, the driving plate 31 is provided with a motor 32, the driving table 2 is provided with a driving screw 33 for driving the driving plate 31 to move, the driving screw 33 is threadedly connected with the driving plate 31, the driving screw 33 is driven by the motor, the driving plate 31 is provided with a vertical plate 34, the vertical plate is provided with a fixed sleeve 35, the fixed sleeve 35 is rotationally arranged with a driving shaft 36 in the fixed sleeve 35, the driving shaft 36 is fixedly connected with the output end of the motor 32, one end of the driving shaft 36 is provided with a polishing wheel 37 located in the shell 12, the driving table 2 is provided with two vertical plates 38, the vertical plates are slidingly provided with two connecting rods 39, the connecting rods 39 are rotationally arranged with limiting wheels 310 abutting against the fixed sleeve 35, the end of the fixed sleeve 35 is provided with a push rod 311, the motor 32 drives the driving shaft 36 to rotate, the driving shaft 36 drives the polishing wheel 37 to rotate, the fixed sleeve 35 and the limiting wheels 310 can prevent the driving shaft 36 from shaking when rotating, and the driving screw 33 can drive the polishing wheel 37 to move, so that the metal pipe 11 can be polished at multiple positions.

[0038] The working principle of the present application is as follows: the metal pipe 11 is put into the shell 12 from the feeding port 13, the metal pipe 11 falls on the two buffering plates 4 under the guidance of the guide plate, and the metal pipe 11 drives the two buffering plates 4 to rotate under the action of gravity, when the center of the metal pipe 11 and the ends of the two buffering plates 4 are in the same plane, the distance between the ends of the two buffering plates 4 is the diameter of the metal pipe 11, the height of the pressing assembly 6 is changed through the adjusting mechanism 7, under the buffering of the buffering plates 4, the metal pipe 11 falls on the two rotating rollers 5, then the pressing assembly 6 is started, the pressing assembly 6 presses the metal pipe 11 and moves the two rotating rollers 5 to make the inner wall of the metal pipe 11 adhere to the surface of the polishing wheel 37, one rotating roller 5 is started to rotate by the motor, the rotating roller 5 drives the metal pipe 11 to rotate, the metal pipe 11 rotates at the same time to drive the other rotating roller 5 to rotate, then the polishing mechanism 3 is started, the polishing mechanism 3 polishes the inner wall of the metal pipe 11 back and forth, after polishing, the two rotating rollers 5 are actuated, the metal pipe 11 is discharged from the discharging port 14, and the polishing of the metal pipe 11 is completed.

[0039] The drawings are attached Figure 3 The drawings are attached Figure 4 The drawings are attached Figure 5As shown, the pressing assembly 6 comprises a cylinder 61 arranged outside the housing 12, the output end of the cylinder 61 is provided with a square sleeve 62 arranged inside the housing 12, a plug rod 63 is movably inserted into the square sleeve 62, one end of the plug rod 63 is provided with an abutting wheel 64, the square sleeve 62 is provided with a sliding hole 65, a sliding plate 66 is slidably arranged in the square sleeve 62, the square sleeve 62 is provided with a positioning mechanism 67 for limiting the sliding plate 66, and the sliding plate 66 is provided with an extension rod 68 matched with the adjusting mechanism 7.

[0040] One end of the plug rod 63 is provided with a screw rod 631, a U-shaped frame 632 is slidably arranged on the screw rod 631, the abutting wheel 64 is rotatably arranged on the U-shaped frame 632, and a threaded sleeve 633 threadedly connected with the screw rod 631 is rotatably arranged on the U-shaped frame 632.

[0041] The working principle of the pressing assembly 6 is as follows: in order to ensure that the rotating roller 5 can drive the metal pipe 11 to rotate, the pressing assembly 6 is arranged to make the rotating roller 5 closely contact with the metal pipe 11, so as to increase the friction force, the extension rod 68 on the sliding plate 66 is driven by the adjusting mechanism 7 to rise to a height matched with the diameter of the metal pipe 11, the positioning mechanism 67 positions the sliding plate 66, and the cylinder 61 drives the abutting wheel 64 to move above the metal pipe 11 to press the metal pipe 11.

[0042] In the initial use, in order to eliminate the error between the parts, after the pressing assembly 6 presses the metal pipe 11, the adjusting door 15 is opened, the metal pipe 11 is pushed to make the grinding wheel 37 extend into the metal pipe 11, then the threaded sleeve 633 is rotated to adjust the position between the U-shaped frame 632 and the plug rod 63, when the inner wall of the metal pipe 11 closely contacts with the surface of the grinding wheel 37, the error elimination is completed at this time, then the metal pipe 11 is reset, the adjusting door 15 is closed, and the grinding is performed, and the error adjustment is not required in the subsequent process.

[0043] Combined with the drawings Figure 3 , the drawings Figure 6 , the drawings Figure 7 , the drawings Figure 8 As shown, the adjusting mechanism 7 comprises two sliding plates 71 slidably arranged in the housing 12, springs 71 are arranged between the sliding plates 71 and the housing 12, the end of the buffer plate 4 is provided with a push column 72 abutting against the sliding plate 71, a strip rod 78 is arranged in the housing 12, the push column 72 is slidably arranged in a limiting hole 79 of the strip rod 78 and can rotate, an inclined plate 73 is arranged on the sliding plate 71, the angle between the inclined plate 73 and the sliding plate 71 is 45°, a sliding groove 74 is arranged on the inclined plate 73, a U-shaped plate 75 is slidably arranged in the sliding groove 74, a connecting plate 76 is slidably arranged in the housing 12, one end of the U-shaped plate 75 is connected with the connecting plate 76, and the end of the connecting plate 76 is provided with a frame 77 abutting against the bottom surface of the extension rod 68.

[0044] The U-shaped plate 75 is provided with a cylinder 751 at one end, and the connecting plate 76 is provided with a moving groove 752 matched with the cylinder 751.

[0045] The working principle of the adjusting mechanism 7 is as follows: the horizontal moving distance of the two buffer plates 4 after rotation is the diameter of the metal pipe 11, two sliding plates two 71 are arranged, and then push columns two 72 are arranged at the end of the buffer plate 4, so that the moving distance of the sliding plates two 71 pushed by the push columns two 72 is the diameter of the metal pipe 11, which is a horizontal distance at this time, and the abutting wheel 64 needs to compress the metal pipe 11 from the vertical direction, in order to change the horizontal distance into a vertical distance, two inclined plates 73 are arranged, and the angle between the inclined plate 73 and the horizontal plane is 45°, according to the principle that the diagonal of a square is equal, the moving distance between the two sliding plates two 71 is equal to the moving distance of the connecting plate 76 on the upper side.

[0046] Since the metal pipe 11 has a certain diameter, and the moving space in the shell 12 is limited, the cylinder 751 is arranged on the U-shaped plate 75, and the moving groove 752 is arranged on the connecting plate 76, so as to give a minimum value of the diameter of the metal pipe 11, so that within this minimum diameter, the connecting plate 76 does not move up, and the cylinder 751 slides in the moving groove 752.

[0047] The accompanying drawings show Figure 3 , the accompanying drawings show Figure 5 , the accompanying drawings show Figure 7 , the accompanying drawings show Figure 9 The positioning mechanism 67 includes a sleeve 671 arranged on the square sleeve 62, the sleeve 671 is provided with a cylinder 672, the cylinder 672 is slidably provided with a sealing plug one 673, the sliding plate one 66 is provided with a push column one 674, one end of the push column one 674 is provided with a sealing plug two 675 located in the sleeve 671, the sleeve 671 and the cylinder 672 are filled with filling liquid, and the sleeve 671 is provided with a control mechanism 8 for controlling the closure between the sleeve 671 and the cylinder 672.

[0048] The sealing plug one 673 is provided with an extension column 6731, and a spring two 6732 is arranged between the extension column 6731 and the sealing plug one 673, and the shell 12 is provided with a trapezoidal block 6733 for controlling the extension and retraction of the extension column 6731.

[0049] The working principle of positioning mechanism 67: When the metal tube 11 falls onto the rotating roller 5 by the buffer plate 4, the buffer plate 4 will reset, thus requiring the slide plate 66 to be fixed when it moves to a position corresponding to the diameter of the metal tube 11. When the metal tube 11 falls onto the two buffer plates 4, the metal tube 11 moves downward under the action of gravity, the buffer plate 4 rotates, the push column 72 pushes the slide plate 71, the slide plate 71 drives the connecting plate 76 to move upward through the inclined plate 73, the connecting plate 76 drives the frame 77 to move upward, and the frame 77 drives the extension The rod 68 moves upward, thereby causing the slide plate 66 to move upward. The slide plate 66 causes the push column 674 to move upward. The filling liquid enters the cylinder 672 through the sleeve 671. When the metal tube 11 falls on the rotating roller 5, the buffer plate 4 resets, thereby causing the frame 77 to move downward. Since the frame 77 is not connected to the extension rod 68, the position of the slide plate 66 remains unchanged, thus completing the positioning of the slide plate 66. When the cylinder 61 pushes the square sleeve 62 to move, the control mechanism 8 will control the sleeve 671 and the cylinder 672 to close.

[0050] Combined with appendix Figure 3 Appendix Figure 5 Appendix Figure 7 Appendix Figure 9 Appendix Figure 11 Appendix Figure 12 As shown, the control mechanism 8 includes an extension block 81 disposed on the sleeve 671. The extension block 81 is provided with a slot communicating with the inside of the sleeve 671. A baffle plate 82 is slidably disposed in the slot. A spring 83 is disposed between the baffle plate 82 and the extension block 81. A lever 84 is hinged to the extension block 81 and a torsion spring 85 is disposed between the lever 84 and the extension block 81. A telescopic rod 87 is provided at one end of the lever 84. The end of the telescopic rod 87 is hinged to the baffle plate 82. An L-shaped rod 86 that cooperates with the lever 84 is disposed inside the housing 12. A top block 88 that cooperates with the lever 84 is disposed inside the housing 12.

[0051] The L-shaped lever 86 controls the lever 84 to remain stationary when moving toward the metal tube 11, and to rotate when moving away from the metal tube 11. The top block 88 controls the lever 84 to rotate in the initial position.

[0052] Working principle: in the initial position, torsional spring 85 is twisted, top block 88 is attached to the lever 84, the shutter plate 82 does not shield the sleeve 671, when the cylinder 61 drives the square sleeve 62 to move, the top block 88 gradually separates from the lever 84, the torsional spring 85 drives the lever 84 to rotate, the lever 84 drives the shutter plate 82 to move towards the sleeve 671 and closes the sleeve 671, when passing through the L-shaped rod one 86, the L-shaped rod one 86 will drive the lever 84 to rotate, the shutter plate 82 moves slightly forward, when the end of the lever 84 is attached to the surface of the L-shaped rod one 86, the square sleeve 62 continues to move, drives the lever 84 to pass through the L-shaped rod one 86, in this process, the shutter plate 82 always shields the sleeve 671, when returning, the L-shaped rod one 86 will make the lever 84 rotate 180°, at this time, the shutter plate 82 no longer shields the sleeve 671, then in the process of moving the square sleeve 62, the trapezoidal block 6733 drives the telescopic column 6731 to move down, the spring two 6732 is compressed, because the sleeve 671 is communicated with the cylinder 672 at this time, the spring two 6732 drives the sealing plug one 673 to move down, the sealing plug one 673 drives the filling liquid to move down, the filling liquid drives the sealing plug two 675 to move down, so that the sliding plate one 66 resets.

[0053] Combining with the accompanying Figure 1 , the accompanying Figure 2 , the accompanying Figure 3 , the accompanying Figure 8 , the accompanying Figure 10 As shown in the drawings, the shell 12 is provided with a sliding hole two 9, a sliding block 91 is slidably arranged in the sliding hole two 9, the rotating roller 5 is rotatably arranged on the sliding block 91, a spring four 92 is arranged between the sliding block 91 and the inner wall of the sliding hole two 9, and a limiting assembly 93 for limiting the two sliding blocks 91 is arranged in the shell 12.

[0054] The limiting assembly 93 comprises a fixed block 94 arranged on the sliding block 91, an L-shaped rod two 95 movably inserted into the fixed block 94 and provided with a reset spring between the fixed block 94, a fixed plate 96 fixedly arranged in the shell 12 and provided with a tooth groove, a tooth block 97 provided on the L-shaped rod two 95 and matched with the tooth groove, and an abutting plate 98 slidably arranged in the shell 12 and abutting against the L-shaped rod two 95, wherein the abutting plate 98 is moved when the polishing mechanism 3 moves.

[0055] The working principle of the limiting assembly 93 is as follows: when the polishing mechanism 3 is in the initial position, the reset spring is compressed, the push rod 311 is attached to the abutting plate 98, and the tooth block 97 is separated from the tooth groove; when polishing, the push rod 311 moves, the push rod 311 is no longer attached to the abutting plate 98, the reset spring drives the L-shaped rod two 95 to move, the tooth block 97 on the L-shaped rod two 95 is attached to the tooth groove on the fixed plate 96, and the limiting of the sliding block 91 is completed at this time.

[0056] In the specific use, the first metal pipe 11 is placed, before polishing, the height of the abutting wheel 64 is adjusted by the screw rod 631 and the threaded sleeve 633 to eliminate the error generated by the linkage of the components, after the adjustment is completed, subsequent adjustment is not required, after the polishing is completed, the distance between the two rotating rollers 5 is increased by moving the two sliders 91, the metal pipe 11 falls from the middle, the metal pipe 11 falls onto the receiving plate 141, then moves downward under the action of gravity, the buffer spring is compressed, then the arc-shaped block 144 on the trapezoidal seat 143 pushes the push plate 142 to rotate, so that the push plate 142 has a certain inclination, so that the metal pipe 11 rolls and falls, and the discharging is completed.

[0057] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure and embodiments to the technical solution are not creative, and should belong to the protection scope of the present application.

Claims

1. A metal pipe grinding device, comprising a base (1) and a drive platform (2), wherein the base (1) is provided with a housing (12) for placing a metal pipe (11), and the drive platform (2) is slidably provided with a grinding mechanism (3) for grinding the inner wall of the metal pipe (11), the housing (12) is provided with a feed inlet (13), and the bottom surface of the housing (12) is provided with a discharge outlet (14), characterized in that: Two buffer plates (4) are rotatably provided on the housing (12) at the feed inlet (13). Two rotating rollers (5) are slidably provided inside the housing (12) below the buffer plates (4). A pressing assembly (6) is slidably provided inside the housing (12) above the rotating rollers (5). The pressing assembly (6) squeezes the metal tube (11) so that it abuts against the two rotating rollers (5). The buffer plate (4) is provided with an adjustment mechanism (7) that measures the diameter of the metal tube (11) through the buffer plate (4) and adjusts the height of the pressing assembly (6) to change the distance between the two rotating rollers (5). The clamping assembly (6) includes a cylinder (61) disposed on the outside of the housing (12). The output end of the cylinder (61) is provided with a square sleeve (62) located inside the housing (12). A rod (63) is movably inserted into the square sleeve (62). One end of the rod (63) is provided with a clamping wheel (64). A sliding hole (65) is provided on the square sleeve (62). A sliding plate (66) is slidably disposed inside the square sleeve (62). A positioning mechanism (67) is provided on the square sleeve (62) to limit the sliding plate (66). An extension rod (68) that cooperates with the adjustment mechanism (7) is provided on the sliding plate (66). The adjustment mechanism (7) includes two sliding plates (71) slidably disposed in the housing (12). A spring is provided between the sliding plate (71) and the housing (12). A push post (72) is provided at the end of the buffer plate (4) and abuts against the sliding plate (71). An inclined plate (73) is provided on the sliding plate (71). The angle between the inclined plate (73) and the sliding plate (71) is 45°. A groove (74) is provided on the inclined plate (73). A U-shaped plate (75) is slidably disposed in the groove (74). A connecting plate (76) is slidably disposed up and down in the housing (12). One end of the U-shaped plate (75) is connected to the connecting plate (76). A frame (77) is provided at the end of the connecting plate (76). The frame (77) is attached to the bottom surface of the extension rod (68).

2. The metal pipe grinding device according to claim 1, characterized in that: The positioning mechanism (67) includes a sleeve (671) disposed on a square sleeve (62), a cylinder (672) disposed on the sleeve (671), a sealing plug (673) slidably disposed inside the cylinder (672), a pusher (674) disposed on a sliding plate (66), a sealing plug (675) disposed at one end of the pusher (674) located inside the sleeve (671), the space between the sleeve (671) and the cylinder (672) is filled with filling liquid, and a control mechanism (8) is provided on the sleeve (671) to control the closing between the sleeve (671) and the cylinder (672).

3. The metal pipe grinding device according to claim 2, characterized in that: The sealing plug (673) is provided with a telescopic column (6731), and a spring (6732) is provided between the telescopic column (6731) and the sealing plug (673). The housing (12) is provided with a trapezoidal block (6733) for controlling the extension and retraction of the telescopic column (6731).

4. The metal pipe grinding device according to claim 2, characterized in that: The control mechanism (8) includes an extension block (81) disposed on a sleeve (671), the extension block (81) having a slot communicating with the inside of the sleeve (671), a baffle plate (82) slidably disposed in the slot, a spring three (83) disposed between the baffle plate (82) and the extension block (81), a lever (84) hinged on the extension block (81) and a torsion spring (85) disposed between the lever (81) and the extension block (81), a telescopic rod (87) disposed at one end of the lever (84), the end of the telescopic rod (87) being hinged to the baffle plate (82), an L-shaped rod one (86) cooperating with the lever (84) disposed inside the housing (12), and a top block (88) cooperating with the lever (84) disposed inside the housing (12). The L-shaped lever (86) controls the lever (84) to remain stationary when moving toward the metal tube (11) and to rotate when moving away from the metal tube (11). The top block (88) controls the lever (84) to rotate in the initial position.

5. The metal pipe grinding device according to claim 1, characterized in that: The housing (12) is provided with a sliding hole (9), and a slider (91) is slidably provided in the sliding hole (9). A rotating roller (5) is rotatably provided on the slider (91). A spring (92) is provided between the slider (91) and the inner wall of the sliding hole (9). A limiting component (93) is provided in the housing (12) to limit the two sliders (91).

6. The metal pipe grinding device according to claim 5, characterized in that: The limiting component (93) includes a fixing block (94) set on the slider (91), an L-shaped rod (95) is movably inserted on the fixing block (94) and a return spring is provided between the fixing block (94), a fixing plate (96) is fixedly provided inside the housing (12), the fixing plate (96) is provided with a toothed groove, the L-shaped rod (95) is provided with a toothed block (97) that cooperates with the toothed groove, and an abutment plate (98) that slides inside the housing (12) and abuts against the L-shaped rod (95). When the grinding mechanism (3) moves, it drives the abutment plate (98) to move.

7. The metal pipe grinding device according to claim 1, characterized in that: The housing (12) is provided with a bar (78), and a limiting hole (79) is provided on the bar (78). The pusher (72) is slidably disposed in the limiting hole (79) and the pusher (72) is rotatable.

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