Polishing equipment and method for polishing outer wall of bent pipe

Abstract

The invention discloses polishing equipment and method for polishing the outer wall of a bent pipe, and relates to the field of bent pipe outer wall grinding. The polishing equipment for polishing the outer wall of the bent pipe comprises a bottom plate, and an electric control machine box is fixedly installed on the bottom plate; the mounting assembly is arranged on the bottom plate, a pipe fixing assembly is rotationally arranged on the mounting assembly, and a bent pipe is fixed to the pipe fixing assembly during polishing; the lower polishing assembly is arranged on the bottom plate; through control of the host in the electric control case, high automation of the bent pipe polishing process is achieved, a user only needs to input parameters of the bent pipe, the equipment can automatically complete the polishing task, manual intervention is greatly reduced, the polishing strength, speed and path are dynamically adjusted, the uniformity and consistency of the polishing effect are ensured, and the polishing efficiency is improved. And through the clamping design of the upper grinding assembly and the lower grinding assembly and cooperative work of the lifting base and the rotating base, the bent pipe can be ground in multiple directions at the same time, and the polishing efficiency is remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of outer wall grinding of curved pipes, and in particular relates to a polishing device used for polishing the outer wall of curved pipes. Background Art

[0002] The elbow connector is a commonly used structural connector. In order to facilitate the subsequent processing of the outer surface of the elbow connector, the outer surface of the elbow connector needs to be ground and polished.

[0003] In the traditional polishing process, it is difficult to effectively polish the bend of the elbow connector. It mainly relies on manually holding the elbow and then adjusting the polishing position in real time to achieve the polishing of the elbow. However, the polishing effect of this polishing method mainly depends on the worker's operating proficiency. Therefore, the quality of the products produced is difficult to effectively guarantee. In addition, manual adjustment of the elbow position will also take up a lot of labor, which is not conducive to further improving production efficiency. For this reason, a polishing device for polishing the outer wall of the elbow is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a polishing device and method for polishing the outer wall of a bent pipe which can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A polishing device for polishing the outer wall of a bent pipe comprises a base plate, on which an electric control box is fixedly mounted, and further comprises: a mounting assembly arranged on the base plate, on which a pipe fixing assembly is rotatably mounted, on which the bent pipe is fixed during polishing; a lower grinding assembly arranged on the base plate; a lifting base arranged on the base plate, on which a rotating base is rotatably mounted, on which a rotating drive unit is mounted, and which drives the rotating base to rotate; an upper grinding assembly arranged on the rotating base; when the mounting assembly drives the bent pipe to move to the middle of the upper grinding assembly and the lower grinding assembly, the upper grinding assembly and the lower grinding assembly clamp the bent pipe for grinding, and while grinding, the mounting assembly and the pipe fixing assembly drive the bent pipe to move.

[0007] Preferably, the mounting assembly includes a first mounting frame fixedly connected to the base plate, the first mounting frame is fixedly connected to a first mounting seat, the first mounting plate is fixedly mounted on the first mounting seat, a rotating sleeve is rotatably connected to the first mounting plate, a spline shaft is slidably connected to the rotating sleeve, a connecting disk is fixedly mounted on the end of the spline shaft, a rotating disk is fixedly connected to the connecting disk, a first motor is fixedly connected to the first mounting frame, and an output shaft of the first motor is transmission connected to the rotating sleeve via a first pulley group.

[0008] Preferably, a driving pulley is rotatably connected to the first mounting seat, a first screw is threadedly connected to the driving pulley, the first screw passes through one end of the first mounting seat and is fixedly connected to the driving seat, a universal ball wheel is fixedly mounted on the driving seat, the ball of the universal ball wheel is in contact with the connecting disk, a connecting plate is fixedly connected to the driving seat, and the connecting plate is rotatably connected to the spline shaft; a second motor is fixedly mounted on the first mounting frame, and the second motor is transmission-connected to the driving pulley through a second pulley set.

[0009] Preferably, the pipe fixing assembly includes a fourth mounting frame fixedly mounted on the turntable, and the fourth mounting frame is inclined, a guide rail is fixedly mounted on the fourth mounting frame, a second mounting seat is slidably mounted on the guide rail, a pipe clamp is fixedly mounted on the second mounting seat, and the bent pipe is fixedly connected to the pipe clamp; a second screw rod is rotatably connected to the fourth mounting frame, the second screw rod is threadedly connected to the second mounting seat, a third motor is fixedly mounted on the fourth mounting frame, and the output shaft of the third motor is transmission connected to the second screw rod through a third pulley set.

[0010] Preferably, the lower grinding assembly includes a second mounting frame fixedly connected to the base plate, both ends of the second mounting frame are rotatably connected to the first rotating shaft, the first rotating shaft is fixedly connected to a first limiting driving wheel, the two first limiting driving wheels are rotatably connected to a first grinding belt, the second mounting frame is fixedly connected to a fourth motor, and the output shaft of the fourth motor is transmission-connected to the first rotating shaft via a fourth pulley group.

[0011] Preferably, the lifting base includes a third mounting frame fixedly mounted on the base plate, a third mounting seat is provided on the third mounting frame, a roller is rotatably connected to the third mounting seat, and the roller rolls on the third mounting frame; a first electric worm gear drive box is fixedly mounted on the top of the third mounting frame, a third screw rod is fixedly connected to the output end of the first electric worm gear drive box, and the third screw rod is threadedly connected to the third mounting seat.

[0012] Preferably, the rotating base comprises a mounting arm, a hinge seat is fixedly mounted on the third mounting seat, and the mounting arm is rotatably connected to the hinge seat.

[0013] Preferably, the rotary drive unit includes a second electric worm gear drive box fixedly connected to the third mounting seat, the output end of the second electric worm gear drive box is threadedly connected to a fourth screw rod, the top of the fourth screw rod is rotatably connected to a slider, a slide groove is provided on the mounting arm, and the slider is slidably connected in the slide groove.

[0014] Preferably, the upper grinding assembly includes a second mounting plate fixedly connected to the mounting arm, a sliding rod fixedly connected to the second mounting plate, a fifth screw rod rotatably connected to the second mounting plate, a fifth mounting bracket slidably connected to the sliding rod, the fifth mounting bracket is threadedly connected to the fifth screw rod, and the fifth mounting bracket is rotatably connected to the first upper limit driving wheel; a sixth mounting bracket is fixedly mounted on the mounting arm, the sixth mounting bracket is rotatably connected to the second rotating shaft, the second rotating shaft is fixedly connected to the second upper limit driving wheel, and the first upper limit driving wheel and the second upper limit driving wheel are rotatably connected to the second grinding belt; the mounting arm is fixedly connected to a fifth motor, and the output shaft of the fifth motor is transmission connected to the second rotating shaft through a fifth pulley group.

[0015] A method for polishing the outer wall of a curved pipe comprises the following steps:

[0016] Step 1: Input the pipe bending parameters in the electric control box, and control the installation assembly, pipe fixing assembly, lower grinding assembly, lifting base, rotating drive unit and upper grinding assembly to work through the host in the electric control box;

[0017] Step 2: Fix the bent pipe on the pipe fixing assembly;

[0018] Step 3: Drive the bent pipe to move above the lower grinding assembly through the installation assembly and the pipe fixing assembly so that the bottom wall of the bent pipe is in contact with the lower grinding assembly;

[0019] Step 4: Drive the upper grinding assembly to move above the bent pipe through the lifting base and the rotating drive unit so that the upper grinding assembly is in contact with the top wall of the bent pipe;

[0020] Step 5: The upper grinding assembly and the lower grinding assembly work to grind the bent pipe;

[0021] Step 6: The installation assembly and the pipe fixing assembly drive the bent pipe forward, backward, up and down, and rotate, so as to change the contact position of the bent pipe with the upper grinding assembly and the lower grinding assembly and keep the grinding center of gravity of the bent pipe consistent.

[0022] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention realizes a high degree of automation of the polishing process of bent pipes through the main engine control in the electronic control chassis. The user only needs to input the parameters of the bent pipe, and the equipment can automatically complete the polishing task, which greatly reduces manual intervention and dynamically adjusts the grinding force, speed and path to ensure the uniformity and consistency of the polishing effect. The clamping design of the upper and lower grinding components, and the coordinated work of the lifting base and the rotating base enable the bent pipe to be polished in multiple directions at the same time, which significantly improves the polishing efficiency. Among them, the precise movement ability of the mounting assembly and the pipe fixing assembly enables the bent pipe to be quickly positioned to the part that needs to be polished, reducing the invalid polishing time. Combining the two methods of rotational polishing and forward and backward moving polishing, the outer wall of the bent pipe can be polished in all directions at the same time, which improves the polishing efficiency and effect. The design of the lifting base and the rotating drive unit allows the upper grinding component to be fine-tuned in height and inclination angle, so that the equipment can adapt to the polishing needs of bent pipes of different shapes and sizes.

[0023] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the attached picture:

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a polishing device for polishing the outer wall of a curved pipe proposed by the present invention Figure 1 ;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a polishing device for polishing the outer wall of a curved pipe proposed by the present invention Figure 2 ;

[0027] Figure 3 A schematic diagram of the structure of a turntable of a polishing device for polishing the outer wall of a curved pipe proposed by the present invention;

[0028] Figure 4 A polishing device for polishing the outer wall of a bent pipe proposed by the present invention Figure 3 The structural diagram at A in the middle;

[0029] Figure 5 A schematic diagram of the structure of a pipe fixing assembly of a polishing device for polishing the outer wall of a bent pipe proposed by the present invention;

[0030] Figure 6 A polishing device for polishing the outer wall of a bent pipe proposed by the present invention Figure 5 The structural diagram at B in the middle;

[0031] Figure 7 A schematic structural diagram of a lower grinding assembly of a polishing device for polishing the outer wall of a curved pipe proposed by the present invention;

[0032] Figure 8 A schematic diagram of the structure of a lifting base of a polishing device for polishing the outer wall of a curved pipe proposed by the present invention;

[0033] Fig. 9 A polishing device for polishing the outer wall of a bent pipe proposed by the present invention Figure 8 Schematic diagram of the structure at C in the middle;

[0034] Fig.10 A schematic structural diagram of an upper grinding assembly of a polishing device for polishing the outer wall of a bent pipe proposed by the present invention;

[0035] Fig.11 A polishing device for polishing the outer wall of a bent pipe proposed by the present invention Fig.10 Schematic diagram of the structure at D in the middle;

[0036] Fig.12 The present invention is a schematic structural diagram of a rotary drive unit of a polishing device for polishing the outer wall of a curved pipe.

[0037] In the figure: 1, bottom plate; 11, first mounting frame; 12, second mounting frame; 13, third mounting frame; 2, electric control box; 3, mounting assembly; 31, first mounting seat; 32, first mounting plate; 33, rotating sleeve; 34, spline shaft; 35, connecting plate; 36, rotating plate; 37, first motor; 38, first pulley group; 39, second motor; 310, driving pulley; 311, first screw rod; 312, second pulley group; 313, driving seat; 314, universal ball wheel; 315, connecting plate; 4, pipe fixing assembly; 41, fourth mounting frame; 42, guide rail; 43, second mounting seat; 44, second screw rod; 45, third motor; 46, third pulley group; 47, pipe clamp; 5, lower grinding assembly; 51, first rotating shaft; 52. first limit drive wheel; 53. first grinding belt; 54. fourth pulley group; 55. fourth motor; 6. lifting base; 61. third mounting base; 62. roller; 63. first electric worm gear drive box; 64. third screw rod; 65. articulated seat; 7. rotating base; 71. mounting arm; 72. slide; 8. rotating drive unit; 81. second electric worm gear drive box; 82. fourth screw rod; 83. slider; 9. upper grinding assembly; 91. second mounting plate; 92. fifth screw rod; 93. slider; 94. fifth mounting frame; 95. first limit drive wheel; 96. second rotating shaft; 97. second limit drive wheel; 98. second grinding belt; 99. sixth mounting frame; 910. fifth motor; 911. fifth pulley group. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0039] Example: Refer to Figure 1-Figure 12 A polishing device for polishing the outer wall of a bent pipe comprises a base plate 1, on which an electric control box 2 is fixedly mounted, and also comprises: a mounting assembly 3, which is arranged on the base plate 1, and a pipe fixing assembly 4 is rotatably arranged on the mounting assembly 3, on which the bent pipe is fixed during polishing; a lower polishing assembly 5, which is arranged on the base plate 1; a lifting base 6, which is arranged on the base plate 1, and a rotating base 7 is rotatably arranged on the lifting base 6, and a rotating driving part 8 is arranged on the lifting base 6, and the rotating driving part 8 drives the rotating base 7 to rotate; an upper polishing assembly 9, which is arranged on the rotating base 7; when the mounting assembly 3 drives the bent pipe to move to the middle of the upper polishing assembly 9 and the lower polishing assembly 5, the upper polishing assembly 9 and the lower polishing assembly 5 clamp the bent pipe for polishing, and while polishing, the mounting assembly 3 and the pipe fixing assembly 4 drive the bent pipe to move.

[0040] In this embodiment, the parameters of the bent pipe are input into the electronic control box 2, and the main engine in the electronic control box 2 controls the installation component 3, the pipe fixing component 4, the lower grinding component 5, the lifting base 6, the rotating drive unit 8 and the upper grinding component 9 to work, and then the bent pipe is fixed on the pipe fixing component 4, and then the installation component 3 and the pipe fixing component 4 drive the bent pipe to move to the top of the lower grinding component 5 and make the bottom wall of the bent pipe close to the lower grinding component 5, and then the lifting base 6 and the rotating drive unit 8 drive the upper grinding component 9 to move to the top of the bent pipe and make the upper grinding component 9 close to the top wall of the bent pipe, and then the upper grinding component 9 and the lower grinding component 5 work to grind the bent pipe. During the grinding process, the installation component 3 and the pipe fixing component 4 drive the bent pipe to move forward, backward, lift and rotate, so as to change the contact position of the bent pipe with the upper grinding component 9 and the lower grinding component 5 and keep the grinding center of gravity of the bent pipe consistent.

[0041] In summary, the device realizes a high degree of automation of the pipe bending polishing process through the host control in the electronic control box 2. The user only needs to input the parameters of the pipe bending, and the equipment can automatically complete the polishing task, which greatly reduces human intervention. The intelligent control algorithm can dynamically adjust the grinding force, speed and path according to the shape of the pipe bending and the polishing requirements to ensure the uniformity and consistency of the polishing effect. The clamping and grinding design of the upper and lower groups of grinding components, as well as the coordinated work of the lifting base 6 and the rotating base 7, enable the pipe bending to be polished in multiple directions at the same time, which significantly improves the polishing efficiency. Among them, the precise movement ability of the mounting component 3 and the pipe fixing component 4 enables the pipe bending to be quickly positioned to the part that needs to be polished, reducing invalid polishing time.

[0042] Reference Figure 3-Figure 5 The mounting assembly 3 includes a first mounting frame 11 fixedly connected to the base plate 1, a first mounting seat 31 fixedly connected to the first mounting frame 11, a first mounting plate 32 fixedly mounted on the first mounting seat 31, a rotating sleeve 33 rotatably connected to the first mounting plate 32, a spline shaft 34 slidably connected to the rotating sleeve 33, a connecting plate 35 fixedly mounted on the end of the spline shaft 34, a rotating disk 36 fixedly connected to the connecting plate 35, a first motor 37 fixedly connected to the first mounting frame 11, an output shaft of the first motor 37 is transmission-connected to the rotating sleeve 33 through a first pulley set 38, and the first mounting seat 3 1 is rotatably connected with a driving pulley 310, and a first screw rod 311 is threadedly connected to the driving pulley 310. The first screw rod 311 passes through one end of the first mounting seat 31 and is fixedly connected to a driving seat 313. A universal ball wheel 314 is fixedly installed on the driving seat 313, and the balls of the universal ball wheel 314 are in contact with the connecting plate 35. A connecting plate 315 is fixedly connected to the driving seat 313, and the connecting plate 315 is rotatably connected to the spline shaft 34; a second motor 39 is fixedly installed on the first mounting frame 11, and the second motor 39 is transmission-connected to the driving pulley 310 through a second pulley set 312.

[0043] In this embodiment, the first motor 37 is started, and the first motor 37 drives the rotating sleeve 33 to rotate through the first pulley group 38, the rotating sleeve 33 drives the spline shaft 34 to rotate, the spline shaft 34 drives the connecting disk 35 to rotate, the connecting disk 35 drives the rotating disk 36 to rotate, and the rotating disk 36 drives the tube fixing assembly 4 to rotate. At the same time, the second motor 39 is started, and the second motor 39 rotates the driving pulley 310 through the second pulley group 312, the driving pulley 310 drives the driving seat 313 to move through the first screw rod 311, and the driving seat 313 drives the rotating disk 36 to move forward and backward. At the same time, the universal ball wheel 314 is used to reduce the friction generated when the rotating disk 36 rotates, and prevent the driving seat 313 from wearing.

[0044] Among them, the installation component 3 realizes the rotation and forward and backward movement of the bent pipe through the coordinated work of the first motor 37 and the second motor 39. The first motor 37 drives the rotation of the rotating sleeve 33 and the spline shaft 34 through the first pulley group 38, and then drives the rotation of the connecting disk 35 and the turntable 36, providing the necessary rotational movement for the polishing of the bent pipe. The second motor 39 drives the rotation of the driving pulley 310 and the first screw 311 through the second pulley group 312, and then drives the driving seat 313 and the turntable 36 to move forward and backward, which is convenient for the position adjustment of the bent pipe during the polishing process.

[0045] By adjusting the rotation of the first screw rod 311, the forward and backward movement distance of the first mounting bracket 11 and the turntable 36 can be accurately controlled, thereby achieving accurate adjustment of the position of the bent pipe.

[0046] The combination of the rotation and forward and backward movement of the turntable 36 allows the bent pipe to flexibly change its posture and position during the polishing process, thereby ensuring the uniformity and consistency of the polishing effect.

[0047] Therefore, through precise rotation and movement control, the mounting assembly 3 can ensure that the bent pipe always maintains close contact with the grinding assembly during the polishing process, thereby improving the polishing efficiency and effect. At the same time, since the position of the bent pipe can be flexibly adjusted, it can be optimized according to different polishing requirements to further improve the polishing quality.

[0048] Reference Figure 5 and Figure 6 The pipe fixing assembly 4 includes a fourth mounting frame 41 fixedly mounted on the turntable 36, and the fourth mounting frame 41 is inclined, a guide rail 42 is fixedly mounted on the fourth mounting frame 41, a second mounting seat 43 is slidably mounted on the guide rail 42, a pipe clamp 47 is fixedly mounted on the second mounting seat 43, and the bent pipe is fixedly connected to the pipe clamp 47; a second screw rod 44 is rotatably connected to the fourth mounting frame 41, and the second screw rod 44 is threadedly connected to the second mounting seat 43, a third motor 45 is fixedly mounted on the fourth mounting frame 41, and the output shaft of the third motor 45 is transmission connected to the second screw rod 44 through a third pulley set 46.

[0049] In this embodiment, the third motor 45 is started, the third motor 45 drives the second screw rod 44 to rotate, and the second screw rod 44 drives the second mounting seat 43 to move along the guide rail 42, thereby changing the position of the bent pipe on the turntable 36.

[0050] The bent pipe rotates 360° following the turntable 36, and the second mounting seat 43 moves along the guide rail 42, ensuring that the center of the grinding position remains unchanged during operation.

[0051] Reference Figure 7 The lower grinding assembly 5 includes a second mounting frame 12 fixedly connected to the base plate 1, both ends of the second mounting frame 12 are rotatably connected to the first rotating shaft 51, the first rotating shaft 51 is fixedly connected to the first limiting driving wheel 52, the two first limiting driving wheels 52 are rotatably connected to the first grinding belts 53, the second mounting frame 12 is fixedly connected to the fourth motor 55, and the output shaft of the fourth motor 55 is transmission-connected to the first rotating shaft 51 via a fourth pulley set 54.

[0052] In this embodiment, the fourth motor 55 is started, and the fourth motor 55 drives the first rotating shaft 51 to rotate through the fourth pulley group 54, the first rotating shaft 51 drives the first limiting driving wheel 52 to rotate, and the first limiting driving wheel 52 drives the first grinding belt 53 to rotate, thereby grinding and polishing the outer wall of the curved pipe in contact with the first grinding belt 53.

[0053] The design of the first limit driving wheel 52 not only drives the first grinding belt 53 to rotate, but also ensures the stability of the first grinding belt 53 during the grinding process, preventing the first grinding belt 53 from deflecting or jumping during the grinding process, thereby ensuring the uniformity and consistency of the grinding effect.

[0054] Reference Figure 8 , Figure 10-12 The lifting base 6 includes a third mounting frame 13 fixedly mounted on the base plate 1, a third mounting seat 61 is provided on the third mounting frame 13, a roller 62 is rotatably connected to the third mounting seat 61, and the roller 62 rolls on the third mounting frame 13; a first electric worm gear drive box 63 is fixedly mounted on the top of the third mounting frame 13, a third screw rod 64 is fixedly connected to the output end of the first electric worm gear drive box 63, and the third screw rod 64 is threadedly connected to the third mounting seat 61; the rotating base 7 includes a mounting arm 71, a hinged seat 65 is fixedly mounted on the third mounting seat 61, and the mounting arm 71 is rotatably connected to the hinged seat 65; the rotating driving part 8 includes a second electric worm gear drive box 81 fixedly connected to the third mounting seat 61, a fourth screw rod 82 is threadedly connected to the output end of the second electric worm gear drive box 81, a slider 83 is rotatably connected to the top of the fourth screw rod 82, a slide groove 72 is provided on the mounting arm 71, and the slider 83 is slidably connected in the slide groove 72.

[0055] In this embodiment, the first electric worm gear drive box 63 is started, the first electric worm gear drive box 63 drives the third screw rod 64 to rotate, the third screw rod 64 drives the third mounting seat 61 to rotate, and the third mounting seat 61 rises or falls along the third mounting frame 13, so as to adjust the height of the upper grinding assembly 9;

[0056] Start the second electric worm gear drive box 81, which drives the slider 83 to rise or fall through the fourth screw 82. The slider 83 slides in the slide groove 72 during the rising or falling process, thereby driving the mounting arm 71 to rotate on the hinge seat 65, thereby adjusting the inclination angle of the upper grinding assembly 9.

[0057] Reference Figure 8-Figure 10The upper grinding assembly 9 includes a second mounting plate 91 fixedly connected to the mounting arm 71, a sliding rod 93 fixedly connected to the second mounting plate 91, a fifth screw rod 92 rotatably connected to the second mounting plate 91, a fifth mounting frame 94 slidably connected to the sliding rod 93, the fifth mounting frame 94 is threadedly connected to the fifth screw rod 92, and the fifth mounting frame 94 is rotatably connected to the first upper limit driving wheel 95; a sixth mounting frame 99 is fixedly mounted on the mounting arm 71, the sixth mounting frame 99 is rotatably connected to the second rotating shaft 96, the second rotating shaft 96 is fixedly connected to the second upper limit driving wheel 97, and the first upper limit driving wheel 95 and the second upper limit driving wheel 97 are rotatably connected to the second grinding belt 98; a fifth motor 910 is fixedly connected to the mounting arm 71, and the output shaft of the fifth motor 910 is transmission-connected to the second rotating shaft 96 through the fifth pulley set 911.

[0058] In this embodiment, by rotating the fifth screw rod 92, the fifth mounting frame 94 can be driven to slide, thereby changing the distance between the fifth mounting frame 94 and the second rotating shaft 96, and then adjusting the distance between the two sets of upper limit driving wheels, so as to facilitate the adjustment of the tightness of the second grinding belt 98 and the replacement of the second grinding belt 98. The fifth motor 910 is started, and the fifth motor 910 drives the second rotating shaft 96 to rotate through the fifth pulley group 911. The second rotating shaft 96 drives the second upper limit driving wheel 97 to rotate, and then drives the second grinding belt 98 to rotate, and then the rotating second grinding belt 98 is used to grind and polish the outer wall of the bent pipe.

[0059] The design of the upper grinding assembly 9 makes the replacement and maintenance of the grinding belt easier and more convenient. By adjusting the fifth screw 92, the second grinding belt 98 can be easily removed from or installed on the upper limit drive wheel without complicated disassembly process.

[0060] Among them, the first grinding belt 53 and the second grinding belt 98 both adopt a double-layer structure design, including a connecting layer and a grinding layer. The connecting layer is a belt, which provides good flexibility and durability; the grinding layer is a sandpaper layer, which is pasted on the belt, providing efficient grinding effect and uniform polishing surface, improving the service life of the grinding belt, and ensuring the stability and consistency of the polishing effect.

[0061] A method for polishing the outer wall of a curved pipe comprises the following steps:

[0062] Step 1: Input the pipe bending parameters in the electric control box 2, and control the installation assembly 3, the pipe fixing assembly 4, the lower grinding assembly 5, the lifting base 6, the rotating drive unit 8 and the upper grinding assembly 9 to work through the host in the electric control box 2;

[0063] Step 2: Fix the bent pipe on the pipe fixing assembly 4;

[0064] Step 3: drive the bent pipe to move above the lower grinding assembly 5 through the installation assembly 3 and the pipe fixing assembly 4 so that the bottom wall of the bent pipe is in contact with the lower grinding assembly 5;

[0065] Step 4: Drive the upper grinding assembly 9 to move above the curved pipe through the lifting base 6 and the rotating driving part 8, and make the upper grinding assembly 9 stick to the top wall of the curved pipe;

[0066] Step 5: The upper grinding assembly 9 and the lower grinding assembly 5 work together to grind the bent pipe;

[0067] Step 6: The installation component 3 and the pipe fixing component 4 drive the bent pipe to move forward, backward, up and down, and rotate, so as to change the contact position of the bent pipe with the upper grinding component 9 and the lower grinding component 5 and keep the grinding center of gravity of the bent pipe consistent.

[0068] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the present invention can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A polishing device for polishing the outer wall of a curved pipe, comprising a base plate (1), on which an electric control box (2) is fixedly mounted, characterized in that: Also includes; A mounting assembly (3) is arranged on the bottom plate (1); a tube fixing assembly (4) is arranged for rotation of the mounting assembly (3); and the bent tube is fixed on the tube fixing assembly (4) during polishing; A lower grinding assembly (5) is arranged on the base plate (1); A lifting base (6) is arranged on the bottom plate (1); a rotating base (7) is rotatably arranged on the lifting base (6); a rotating driving unit (8) is arranged on the lifting base (6); and the rotating driving unit (8) drives the rotating base (7) to rotate; An upper grinding assembly (9) is arranged on the rotating base (7); When the installation component (3) drives the bent pipe to move to the middle of the upper grinding component (9) and the lower grinding component (5), the upper grinding component (9) and the lower grinding component (5) clamp the bent pipe for grinding. While grinding, the installation component (3) and the pipe fixing component (4) drive the bent pipe to move.

2. A polishing device for polishing the outer wall of a bent pipe according to claim 1, characterized in that: The mounting assembly (3) comprises a first mounting frame (11) fixedly connected to the base plate (1), a first mounting seat (31) fixedly connected to the first mounting frame (11), a first mounting plate (32) fixedly mounted on the first mounting seat (31), a rotating sleeve (33) rotatably connected to the first mounting plate (32), a spline shaft (34) slidably connected to the rotating sleeve (33), a connecting disk (35) fixedly mounted on the end of the spline shaft (34), a rotating disk (36) fixedly connected to the connecting disk (35), a first motor (37) fixedly connected to the first mounting frame (11), and an output shaft of the first motor (37) drivingly connected to the rotating sleeve (33) via a first pulley set (38).

3. A polishing device for polishing the outer wall of a bent pipe according to claim 2, characterized in that: The first mounting seat (31) is rotatably connected to a driving pulley (310), the driving pulley (310) is threadedly connected to a first screw rod (311), one end of the first screw rod (311) passes through the first mounting seat (31) and is fixedly connected to a driving seat (313), a universal ball wheel (314) is fixedly mounted on the driving seat (313), the ball of the universal ball wheel (314) is in contact with a connecting plate (35), the driving seat (313) is fixedly connected to a connecting plate (315), and the connecting plate (315) is rotatably connected to the spline shaft (34); A second motor (39) is fixedly mounted on the first mounting frame (11), and the second motor (39) is transmission-connected to the driving pulley (310) via a second pulley set (312).

4. The polishing device for polishing the outer wall of a bent pipe according to claim 3, characterized in that: The pipe fixing assembly (4) comprises a fourth mounting frame (41) fixedly mounted on the rotating disk (36), and the fourth mounting frame (41) is arranged tilted, a guide rail (42) is fixedly mounted on the fourth mounting frame (41), a second mounting seat (43) is slidably mounted on the guide rail (42), a pipe clamp (47) is fixedly mounted on the second mounting seat (43), and the bent pipe is fixedly connected to the pipe clamp (47); A second screw rod (44) is rotatably connected to the fourth mounting frame (41), and the second screw rod (44) is threadedly connected to the second mounting seat (43). A third motor (45) is fixedly mounted on the fourth mounting frame (41), and an output shaft of the third motor (45) is transmission-connected to the second screw rod (44) via a third pulley set (46).

5. The polishing device for polishing the outer wall of a bent pipe according to claim 1, characterized in that: The lower grinding assembly (5) comprises a second mounting frame (12) fixedly connected to the base plate (1), both ends of the second mounting frame (12) are rotatably connected to a first rotating shaft (51), a first position-limiting driving wheel (52) is fixedly connected to the first rotating shaft (51), two first position-limiting driving wheels (52) are rotatably connected to a first grinding belt (53), the second mounting frame (12) is fixedly connected to a fourth motor (55), and the output shaft of the fourth motor (55) is transmission-connected to the first rotating shaft (51) via a fourth pulley set (54).

6. The polishing device for polishing the outer wall of a bent pipe according to claim 1, characterized in that: The lifting base (6) comprises a third mounting frame (13) fixedly mounted on the base plate (1), a third mounting seat (61) being arranged on the third mounting frame (13), a roller (62) being rotatably connected to the third mounting seat (61), and the roller (62) rolling on the third mounting frame (13); A first electric worm gear drive box (63) is fixedly mounted on the top of the third mounting frame (13); a third screw rod (64) is fixedly connected to the output end of the first electric worm gear drive box (63); and the third screw rod (64) is threadedly connected to the third mounting seat (61).

7. The polishing device for polishing the outer wall of a bent pipe according to claim 6, characterized in that: The rotating base (7) comprises a mounting arm (71), a hinge seat (65) is fixedly mounted on the third mounting seat (61), and the mounting arm (71) is rotatably connected to the hinge seat (65).

8. The polishing device for polishing the outer wall of a bent pipe according to claim 7, characterized in that: The rotary drive unit (8) comprises a second electric worm gear drive box (81) fixedly connected to the third mounting seat (61); the output end of the second electric worm gear drive box (81) is threadedly connected to a fourth screw rod (82); the top of the fourth screw rod (82) is rotatably connected to a slider (83); a slide groove (72) is provided on the mounting arm (71); and the slider (83) is slidably connected in the slide groove (72).

9. The polishing device for polishing the outer wall of a bent pipe according to claim 7, characterized in that: The upper grinding assembly (9) comprises a second mounting plate (91) fixedly connected to the mounting arm (71), a sliding rod (93) fixedly connected to the second mounting plate (91), a fifth screw rod (92) rotatably connected to the second mounting plate (91), a fifth mounting frame (94) slidably connected to the sliding rod (93), the fifth mounting frame (94) being threadedly connected to the fifth screw rod (92), and a first upper limit driving wheel (95) rotatably connected to the fifth mounting frame (94); A sixth mounting frame (99) is fixedly mounted on the mounting arm (71), a second rotating shaft (96) is rotatably connected to the sixth mounting frame (99), a second upper limit driving wheel (97) is fixedly connected to the second rotating shaft (96), and a second grinding belt (98) is rotatably connected to the first upper limit driving wheel (95) and the second upper limit driving wheel (97); A fifth motor (910) is fixedly connected to the mounting arm (71), and an output shaft of the fifth motor (910) is transmission-connected to the second rotating shaft (96) via a fifth pulley set (911).

10. A method for polishing the outer wall of a curved pipe, using the polishing device for polishing the outer wall of a curved pipe according to claim 9, characterized in that: The following steps are involved: Step 1: Input the pipe bending parameters in the electric control box (2), and control the installation component (3), the pipe fixing component (4), the lower grinding component (5), the lifting base (6), the rotating drive unit (8) and the upper grinding component (9) to work through the host in the electric control box (2); Step 2: Fix the bent pipe on the pipe fixing assembly (4); Step 3: drive the bent pipe to move above the lower grinding assembly (5) through the installation assembly (3) and the pipe fixing assembly (4) and make the bottom wall of the bent pipe contact with the lower grinding assembly (5); Step 4: driving the upper grinding assembly (9) to move to the top of the curved pipe through the lifting base (6) and the rotating driving part (8) so that the upper grinding assembly (9) is in contact with the top wall of the curved pipe; Step 5: The upper grinding assembly (9) and the lower grinding assembly (5) work to grind the bent pipe; Step 6: The installation assembly (3) and the pipe fixing assembly (4) drive the bent pipe to move forward, backward, up and down, and rotate, thereby changing the contact position of the bent pipe with the upper grinding assembly (9) and the lower grinding assembly (5) and keeping the grinding center of gravity of the bent pipe consistent.

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