Grinding device for inner wall of variable-diameter pipeline

Abstract

The grinding device for the inner wall of the variable-diameter pipeline comprises a machine frame, a working table, a lifting mechanism, a rotating mechanism, a driving shaft, a transverse rod, a grinding rod and a first pneumatic cylinder, the working table is fixedly arranged on the machine frame, a fixing hole is formed in the working table, the lifting mechanism is installed at the upper end of the machine frame, and the rotating mechanism is connected with the lifting end of the lifting mechanism; the small head end of the variable-diameter pipeline is inserted into a fixing hole in the working table, after the driving shaft enters the variable-diameter pipeline through the lifting mechanism, the inclination state of the polishing rod is adjusted through the first pneumatic cylinder, the side, provided with the abrasive paper, of the polishing rod is attached to the inner wall of the variable-diameter pipeline, and then the driving shaft is driven to rotate through the rotating mechanism; according to the variable-diameter pipeline inner wall polishing device, the inclination state of the polishing rod can be adjusted through the first pneumatic cylinder, so that the variable-diameter pipeline inner wall polishing device is suitable for polishing the inner walls of different variable-diameter pipelines, the practicability is high, the polishing efficiency is high, and the variable-diameter pipeline inner wall polishing device is suitable for large-scale popularization.

Description

Technical Field

[0001] The utility model relates to the field of grinding the inner wall of a variable diameter pipeline, in particular to a device for grinding the inner wall of a variable diameter pipeline. Background Art

[0002] Variable diameter pipe refers to a pipe that connects pipe sections of different diameters in series in sequence. For the inner wall grinding of pipe parts, manual grinding is usually adopted. Workers hold homemade grinding devices or grinders to grind inside the pipe. Because the inner wall space of pipe parts is usually small, grinding is very labor-intensive and labor-intensive, and the efficiency is very low. Moreover, because workers grind manually, the consistency of pipe parts is poor. Moreover, if it is a variable diameter pipe part, the inner wall diameter varies, and the grinding requirements for workers will be greatly increased. It will be difficult to guarantee the inner wall size, roughness, straightness and roundness.

[0003] The Chinese utility model patent with announcement number CN216228373U, announced on April 8, 2022, discloses a variable diameter grinding device for reducers. The invention controls the distance between the grinding head and the reducer-like parts by the size of the spring elastic coefficient and the speed of rotation of the support shaft driven by the variable speed motor to play the role of grinding the inner wall of the reducer-like parts, and the degree of grinding the inner wall of the pipe can be determined by controlling the speed of the variable speed motor. However, in this invention, since the grinding head has a cylindrical structure, it cannot be used for grinding the inner wall of a tapered reducer. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above problems in the prior art, the utility model provides a device for grinding the inner wall of a variable diameter pipe.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] A device for grinding the inner wall of a variable diameter pipe, comprising a frame, a workbench, a lifting mechanism, a rotating mechanism, a driving shaft, a crossbar, a grinding rod and a first pneumatic cylinder;

[0009] The workbench is fixedly arranged on the frame, and a fixing hole is provided on the workbench;

[0010] The lifting mechanism is installed on the upper end of the frame;

[0011] The rotating mechanism is connected to the lifting end of the lifting mechanism;

[0012] The driving shaft is connected to the rotating end of the rotating mechanism;

[0013] The cross bar is arranged at the bottom of the driving shaft and is perpendicular to the driving shaft;

[0014] The middle part of the grinding rod is rotatably connected to an end of the cross bar away from the driving shaft, and the grinding rod away from the driving shaft is sequentially installed with sandpaper;

[0015] One end of the first pneumatic cylinder is rotatably connected to the driving shaft, and the other end of the first pneumatic cylinder is rotatably connected to the polishing rod.

[0016] Preferably, a through hole matching the cross bar is formed at the bottom of the driving shaft, and the cross bar is fixedly installed in the through hole by bolts.

[0017] Preferably, it further comprises a clamp, wherein the clamp is provided in two groups and is symmetrically arranged on the workbench, and the clamp comprises a clamping plate, a threaded rod, a hand wheel, a fixing plate and a guide rod;

[0018] The fixing plate is vertically arranged on the surface of the workbench;

[0019] The threaded rod is threadedly connected to the fixing plate;

[0020] The clamping plate is rotatably mounted on one end of the threaded rod that is close to each other, and the clamping plate is provided with a clamping groove that is adapted to the reduced diameter pipe;

[0021] The hand wheel is fixedly mounted on one end of the threaded rod away from the clamping plate;

[0022] The guide rod is fixed on the clamping plate, and the fixing plate is provided with a guide hole corresponding to the guide rod.

[0023] Preferably, the lifting mechanism comprises a slide rail, a slider and a second pneumatic cylinder;

[0024] The slide rail is fixed to the upper end of the frame;

[0025] The slider is slidably mounted on the slide rail;

[0026] The piston rod of the second pneumatic cylinder is connected to the slider;

[0027] The rotating mechanism is fixed on the sliding block.

[0028] Preferably, the rotating mechanism includes a motor, a driving wheel, a driven wheel and a rotating shaft, the motor is connected to the driving wheel, the driving wheel is connected to the driven wheel via a belt, the driven wheel is connected to the rotating shaft, and the rotating shaft is connected to the drive shaft.

[0029] Preferably, the bottom of the fixed hole on the workbench is connected to a negative pressure suction pipe.

[0030] (III) Beneficial effects

[0031] The beneficial effect of the utility model is that: by adopting the above-mentioned technical scheme, the small head end of the variable diameter pipe is inserted into the fixed hole on the workbench, and after the driving shaft enters the interior of the variable diameter pipe through the lifting mechanism, the inclination state of the grinding rod is adjusted by the first pneumatic cylinder, so that the side of the grinding rod equipped with sandpaper is fitted with the inner wall of the variable diameter pipe, and then the driving shaft is driven to rotate by the rotating mechanism, which is conducive to the grinding rod to realize rapid grinding of the interior of the variable diameter pipe. The present application can adjust the inclination state of the grinding rod through the first pneumatic cylinder, so as to adapt to the inner wall grinding of different variable diameter pipes, has strong practicality and high grinding efficiency, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of a structure for grinding the inner wall of a variable diameter pipe Figure 1 ;

[0033] Figure 2 A schematic diagram of a structure for grinding the inner wall of a variable diameter pipe Figure 2 ;

[0034] Figure 3 It is a schematic diagram of the main structure of a device for grinding the inner wall of a variable diameter pipe;

[0035] Figure 4 It is a side view structural schematic diagram of a device for grinding the inner wall of a variable diameter pipe;

[0036] Figure 5 Schematic diagram of the connection structure between the drive shaft and the cross bar.

[0037] [Description of Reference Numerals]

[0038] 1. Frame;

[0039] 2. Workbench;

[0040] 3. Lifting mechanism;

[0041] 31. Slide rail; 32. Sliding block; 33. Second pneumatic cylinder;

[0042] 4. Rotating mechanism;

[0043] 41. Motor; 42. Driving wheel; 43. Driven wheel; 44. Rotating shaft;

[0044] 5. Drive shaft;

[0045] 6. Horizontal bar;

[0046] 7. The first pneumatic cylinder;

[0047] 8. Polish the rod;

[0048] 9. Clamp;

[0049] 91. fixed plate; 92. hand wheel; 93. threaded rod; 94. clamping plate; 95. guide rod;

[0050] 10. Negative pressure suction tube;

[0051] 11. Bolts. DETAILED DESCRIPTION

[0052] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0053] Please refer to Figures 1 to 4 The utility model provides a device for grinding the inner wall of a variable diameter pipe, comprising a frame 1, a workbench 2, a lifting mechanism 3, a rotating mechanism 4, a driving shaft 5, a crossbar 6, a grinding rod 8 and a first pneumatic cylinder 7;

[0054] The workbench 2 is fixedly arranged on the frame 1, and a fixing hole is opened on the workbench 2;

[0055] The lifting mechanism 3 is installed at the upper end of the frame 1;

[0056] The rotating mechanism 4 is connected to the lifting end of the lifting mechanism 3;

[0057] The driving shaft 5 is connected to the rotating end of the rotating mechanism 4;

[0058] The cross bar 6 is arranged at the bottom of the driving shaft 5 and is perpendicular to the driving shaft 5;

[0059] The middle part of the grinding rod 8 is rotatably connected to the end of the cross bar 6 away from the driving shaft 5, and the grinding rod 8 away from the driving shaft 5 is sequentially installed with sandpaper;

[0060] One end of the first pneumatic cylinder 7 is rotatably connected to the driving shaft 5, and the other end of the first pneumatic cylinder 7 is rotatably connected to the grinding rod 8;

[0061] When in use, the small head end of the reducer pipe is inserted into the fixed hole on the workbench 2. After the driving shaft 5 enters the interior of the reducer pipe through the lifting mechanism 3, the inclination of the grinding rod 8 is adjusted by the first pneumatic cylinder 7 so that the side of the grinding rod 8 with the sandpaper installed is in contact with the inner wall of the reducer pipe, and then the driving shaft 5 is driven to rotate by the rotating mechanism 4, which is conducive to the grinding rod 8 to realize rapid grinding of the interior of the reducer pipe. The present application can adjust the inclination of the grinding rod 8 through the first pneumatic cylinder 7 to adapt to the inner wall grinding of different reducer pipes. It has strong practicality and high grinding efficiency and is suitable for large-scale promotion.

[0062] refer to Figure 5In this embodiment, a through hole matching the cross bar 6 is provided at the bottom of the driving shaft 5, and the cross bar 6 is fixedly installed in the through hole by bolts 11;

[0063] Loosen the bolt 11 and adjust the extension length of the cross bar 6 to meet the requirements of grinding the inner wall of variable diameter pipes with different inner diameters.

[0064] In this embodiment, a clamp 9 is further included. The clamp 9 is provided in two groups and is symmetrically arranged on the workbench 2. The clamp 9 includes a clamp plate 94, a threaded rod 93, a hand wheel 92, a fixing plate 91 and a guide rod 95.

[0065] The fixing plate 91 is vertically arranged on the surface of the workbench 2;

[0066] The threaded rod 93 is threadedly connected to the fixing plate 91;

[0067] The clamping plate 94 is rotatably mounted on one end of the threaded rod 93 that is close to each other, and a clamping groove adapted to the reduced diameter pipe is provided on the clamping plate 94;

[0068] The hand wheel 92 is fixedly mounted on the end of the threaded rod 93 away from the clamping plate 94;

[0069] The guide rod 95 is fixed on the clamping plate 94, and a guide hole corresponding to the guide rod 95 is opened on the fixing plate 91;

[0070] When in use, the hand wheel 92 drives the threaded rod 93 to rotate, driving one end of the clamping plate 94, and the clamping groove on the clamping plate 94 is used to fix the variable diameter pipe in the fixing hole. A rubber pad is installed in the clamping groove to meet the fixation of different variable diameter pipes.

[0071] In this embodiment, the lifting mechanism 3 includes a slide rail 31, a slider 32 and a second pneumatic cylinder 33;

[0072] The slide rail 31 is fixed to the upper end of the frame 1;

[0073] The slider 32 is slidably mounted on the slide rail 31;

[0074] The piston rod of the second pneumatic cylinder 33 is connected to the slider 32;

[0075] The rotating mechanism 4 is fixed on the slider 32;

[0076] When in use, the second pneumatic cylinder 33 drives the slider 32 to move on the slide rail 31, thereby achieving lifting control.

[0077] In this embodiment, the rotating mechanism 4 includes a motor 41, a driving wheel 42, a driven wheel 43 and a rotating shaft 44. The motor 41 is connected to the driving wheel 42, the driving wheel 42 is connected to the driven wheel 43 through a belt, the driven wheel 43 is connected to the rotating shaft 44, and the rotating shaft 44 is connected to the driving shaft 5. When in use, the motor 41 drives the driving wheel 42, the driven wheel 43 and the rotating shaft 44 to rotate in turn, thereby driving the driving shaft 5 to rotate.

[0078] In this embodiment, the bottom of the fixing hole on the workbench 2 is connected to the negative pressure suction pipe 10, and the dust generated during the grinding process is discharged through the negative pressure suction pipe 10, thereby achieving the purpose of clean operation.

[0079] The working principle of the utility model is as follows:

[0080] Insert the small end of the reducer pipe into the fixed hole on the workbench 2, and after the driving shaft 5 enters the reducer pipe through the lifting mechanism 3, the inclination of the grinding rod 8 is adjusted by the first pneumatic cylinder 7, so that the side of the grinding rod 8 with the sandpaper installed is in contact with the inner wall of the reducer pipe, and then the driving shaft 5 is driven to rotate by the rotating mechanism 4, which is conducive to the grinding rod 8 to realize rapid grinding of the inside of the reducer pipe. The present application can adjust the inclination of the grinding rod 8 through the first pneumatic cylinder 7, so as to adapt to the inner wall grinding of different reducer pipes, has strong practicality and high grinding efficiency, and is suitable for large-scale promotion.

[0081] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0082] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0083] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for grinding the inner wall of a variable diameter pipe, characterized in that: It includes a frame, a workbench, a lifting mechanism, a rotating mechanism, a driving shaft, a crossbar, a grinding rod and a first pneumatic cylinder; The workbench is fixedly arranged on the frame, and a fixing hole is provided on the workbench; The lifting mechanism is installed on the upper end of the frame; The rotating mechanism is connected to the lifting end of the lifting mechanism; The driving shaft is connected to the rotating end of the rotating mechanism; The cross bar is arranged at the bottom of the driving shaft and is perpendicular to the driving shaft; The middle part of the grinding rod is rotatably connected to an end of the cross bar away from the driving shaft, and the grinding rod away from the driving shaft is sequentially installed with sandpaper; One end of the first pneumatic cylinder is rotatably connected to the driving shaft, and the other end of the first pneumatic cylinder is rotatably connected to the polishing rod.

2. The device for grinding the inner wall of a variable diameter pipe according to claim 1, characterized in that: A through hole matching the cross bar is formed at the bottom of the driving shaft, and the cross bar is fixedly installed in the through hole by means of bolts.

3. The device for grinding the inner wall of a variable diameter pipe according to claim 1, characterized in that: It also includes a clamp, which is provided with two groups and is symmetrically arranged on the workbench, and the clamp includes a clamping plate, a threaded rod, a hand wheel, a fixing plate and a guide rod; The fixing plate is vertically arranged on the surface of the workbench; The threaded rod is threadedly connected to the fixing plate; The clamping plate is rotatably mounted on one end of the threaded rod that is close to each other, and the clamping plate is provided with a clamping groove that is adapted to the reduced diameter pipe; The hand wheel is fixedly mounted on an end of the threaded rod away from the clamping plate; The guide rod is fixed on the clamping plate, and the fixing plate is provided with a guide hole corresponding to the guide rod.

4. The device for grinding the inner wall of a variable diameter pipe according to claim 1, characterized in that: The lifting mechanism includes a slide rail, a slider and a second pneumatic cylinder; The slide rail is fixed to the upper end of the frame; The slider is slidably mounted on the slide rail; The piston rod of the second pneumatic cylinder is connected to the slider; The rotating mechanism is fixed on the sliding block.

5. The device for grinding the inner wall of a variable diameter pipe according to claim 1, characterized in that: The rotating mechanism comprises a motor, a driving wheel, a driven wheel and a rotating shaft, the motor is connected to the driving wheel, the driving wheel is connected to the driven wheel via a belt, the driven wheel is connected to the rotating shaft, and the rotating shaft is connected to the driving shaft.

6. The device for grinding the inner wall of a variable diameter pipe according to claim 1, characterized in that: The bottom of the fixing hole on the workbench is connected to a negative pressure suction pipe.

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