CN216967207U - Metal pipe sanding device - Google Patents

Abstract

The utility model relates to the technical field of pipeline processing equipment, in particular to a metal tube sanding device which comprises a box body, a workbench, an end face sanding mechanism, an internal sanding mechanism and a metal tube, wherein the workbench is fixedly connected to the top end of the box body; according to the utility model, the metal pipe can be fixed by arranging the clamping mechanism, so that the metal pipe is prevented from shaking in the polishing process to influence the polishing precision; meanwhile, the metal pipe can be debugged in the middle, and the end parts of the metal pipe can be simultaneously polished by the two end surface polishing mechanisms; and then the inside of the metal pipe is polished by the internal polishing mechanism, so that the labor intensity can be reduced, and the polishing efficiency can be improved.

Description

Metal pipe sanding device

Technical Field

The utility model relates to the technical field of pipeline processing equipment, in particular to a metal pipe sanding device.

Background

A metal pipe is a pipeline for conveying media, and is common in daily life; during the processing, transportation and storage processes of the metal pipe, the surface of the metal pipe is often provided with oxide skin, rust, welding slag, dust, oil stain and other pollutants; in order to make the coating more firmly attached to the surface of the metal pipe, the surface treatment is needed, otherwise, not only the adhesion and corrosion resistance of the coating and the metal are affected, but also the metal is continuously corroded even if the coating is protected, so that the coating is peeled off, and the service life of the metal pipe is affected; therefore, the surface treatment before the coating of the metal pipe is an effective guarantee measure for obtaining a high-quality protective coating; the common pretreatment mainly comprises the following steps: manual, chemical and mechanical treatment; wherein the chemical treatment can generate a large amount of waste water and waste acid, and the surface has no roughness; the mechanical treatment mode comprises shot blasting and sand blasting, but the use cost is high, in order to avoid the abrasive material from causing large pressure stress on the surface of the workpiece and avoid the workpiece from deforming, the sand blasting distance is generally controlled within the range of 100-300 mm, and certain use limitation is realized; the existing manual treatment means that a grinding wheel and a steel wire brush are manually used for removing rusts and oxide scales on the surface of the metal pipe, although the use cost is low and secondary pollution is not easily caused, the labor intensity is high, the efficiency is low, and when the length of the metal pipe is too long, the interior of the metal pipe is difficult to polish manually, so that the use requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a metal tube sanding device, which mainly solves the technical problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the metal tube sanding device comprises a box body, a workbench, an end face polishing mechanism and an internal polishing mechanism, wherein the workbench is fixedly connected to the top end of the box body, an arc-shaped groove is formed in the top end of the workbench, a metal tube is placed in the arc-shaped groove, two groups of rectangular holes are symmetrically formed in the top end of the box body and positioned on two sides of the metal tube, the end face polishing mechanism is respectively arranged in each of the two groups of rectangular holes, and the internal polishing mechanism is arranged on the outer surface of the box body and positioned on one side of the metal tube;

the end face polishing mechanism comprises a fixed block, an electric cylinder, a primary rack and a primary motor, wherein the fixed block is connected to the inner wall of the rectangular hole in a sliding manner, the electric cylinder is fixedly connected to the inner wall of the fixed block, the primary rack is fixedly connected to one end of an output shaft of the electric cylinder, the primary motor is fixedly connected to one end of the primary rack and the side far away from the metal pipe, a polishing assembly is fixedly connected to one end of the output shaft of the primary motor, a primary bidirectional screw is arranged in the box body, the outer surface of the primary bidirectional screw is positioned on two sides and is in threaded connection with the inner walls of the two groups of fixed blocks respectively, one end of the primary bidirectional screw is rotatably connected with the inner wall of the box body, the other end of the primary bidirectional screw penetrates through the inner wall of the box body and is fixedly connected with a rotating shaft, and a handle is fixedly connected to the outer surface of the rotating shaft;

the internal polishing mechanism comprises a base, a supporting plate, a sliding rail, a bearing seat, a fixed seat, a three-level motor, a screw rod and a guide block, wherein the base is fixedly connected to the outer surface of the box body and positioned on one side of the metal pipe, the supporting plate is fixedly connected to the bottom end of the base and positioned on one side far away from the box body, the guide block is fixedly connected to the top end of the base and positioned on one side close to the box body, the sliding rail is fixedly connected to the top end of the base and positioned on one side far away from the box body, the fixed seat is slidably connected to the outer surface of the sliding rail, the three-level motor is fixedly connected to the top end of the fixed seat, the screw rod is fixedly connected to one end of an output shaft of the three-level motor, the other end of the screw rod penetrates through the outer surface of the guide block and is fixedly connected with a polishing component, the outer surface of the screw rod is in threaded connection with the inner wall of the guide block, and one side, close to the three-level motor, is rotatably connected with the bearing seat through a bearing, the bottom of bearing frame and the surface sliding connection of slide rail.

Preferably, the top end of the workbench is provided with a clamping mechanism, the clamping mechanism comprises a fixing frame, a second-stage bidirectional screw rod, guide rods, a second-stage rack, a second-stage motor, a connecting plate and a clamping block, the top end of the workbench is fixedly connected with the fixing frame at the central position of the two groups of internal polishing mechanisms, the inner wall of the fixing frame is rotatably connected with the second-stage bidirectional screw rod, the outer surface of the second-stage bidirectional screw rod is respectively and fixedly connected with the connecting plate at the two sides of the fixing frame, one end of the second-stage bidirectional screw rod is fixedly connected with the second-stage motor, the second-stage motor is fixedly connected with the outer surface of the workbench through the second-stage rack, the outer surface of the fixing frame is respectively and fixedly connected with the two groups of guide rods at the two sides, the two groups of guide rods are positioned above the second-stage bidirectional screw rod, and the outer surface of the guide rods is slidably connected with the inner wall of the connecting plate, the top ends of the two groups of connecting plates are respectively and fixedly connected with clamping blocks on the back sides, and the clamping blocks are matched with the metal pipe.

Preferably, the surface of pivot is provided with stop gear, stop gear includes ratchet, stopper, slide bar, spring and stay cord, the surface of box and the outside fixedly connected with ratchet that is located the pivot, two sets of spouts have been seted up to the surface symmetry of pivot, and are two sets of the inner wall difference fixedly connected with slide bar of spout, the surface cover of slide bar is equipped with the spring, the one end of spring and the inner wall of spout and be close to one side fixed connection of box, the other end fixedly connected with stopper of spring, the inner wall of stopper and the surface sliding connection of slide bar, stopper and ratchet looks adaptation, the surface of stopper and the one side fixedly connected with stay cord of keeping away from the box.

Preferably, the grinding assembly comprises a turntable, an electric push rod, a control box, a mounting seat, a telescopic rod and a grinding wheel sheet, one end of the output shaft of the first-stage motor and one end of the output shaft of the third-stage motor are respectively and fixedly connected with a turntable, the outer surface of the turntable is annularly and fixedly connected with a plurality of groups of electric push rods, one end of the output shaft of each group of electric push rods is respectively and fixedly connected with a grinding wheel, the grinding wheel is contracted together to form a circular ring, the outer surface of the rotary table and the position between two adjacent groups of electric push rods are fixedly connected with a mounting seat, the other end of the mounting seat is fixedly connected with two groups of telescopic rods, the other ends of the two groups of telescopic rods are respectively and fixedly connected with the inner walls of two adjacent groups of grinding wheels, one end fixedly connected with control box of carousel, be provided with battery and controller in the control box, the multiunit electric putter links to each other with battery and controller electrical property respectively.

Preferably, the inner wall of the box body is fixedly connected with a material box below the first-stage bidirectional screw rod.

Preferably, the outer surface of the fixing block is fixedly connected with a protection plate between the rectangular hole and the first-stage bidirectional screw rod.

Preferably, the central axis of the electric push rod is parallel to the central axis of the telescopic rod on both sides of the electric push rod.

Compared with the prior art, the utility model has the beneficial effects that:

according to the metal pipe polishing device, the clamping mechanism is arranged, so that the metal pipe can be fixed, and the metal pipe is prevented from shaking in the polishing process to influence the polishing precision; meanwhile, the metal pipe can be debugged in the middle, and the end parts of the metal pipe can be simultaneously polished by the two groups of end surface polishing mechanisms; the interior of the metal tube is polished by the internal polishing mechanism, so that the labor intensity can be reduced, and the polishing efficiency can be improved; and, the subassembly of polishing can be adjusted, can change the scope of the processing of polishing for the subassembly of polishing can effectively polish to the inside of tubular metal resonator.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of a metal pipe sanding device according to the present invention;

FIG. 2 is a schematic view showing the structure of FIG. 1 with a metal pipe installed therein according to the present invention;

FIG. 3 is a schematic view of the internal structure of the case of FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the structure at A of FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of the portion B of FIG. 3 according to the present invention;

FIG. 6 is a schematic illustration of the sanding assembly of FIG. 1 according to the present invention;

fig. 7 is a schematic structural view of the guard plate of fig. 3 according to the present invention.

In the figure: the grinding wheel grinding machine comprises a box body 1, a rectangular hole 101, a workbench 2, an arc-shaped groove 201, an end face grinding mechanism 3, a fixing block 31, an electric cylinder 32, a primary rack 33, a primary motor 34, a clamping mechanism 4, a fixing frame 41, a secondary bidirectional screw 42, a guide rod 43, a secondary rack 44, a secondary motor 45, a connecting plate 46, a clamping block 47, an internal grinding mechanism 5, a base 51, a supporting plate 52, a sliding rail 53, a bearing seat 54, a fixing seat 55, a tertiary motor 56, a screw 57, a guide block 58, a grinding assembly 6, a rotary disc 61, an electric push rod 62, a control box 63, a mounting seat 64, an expansion rod 65, a grinding wheel 66, a limiting mechanism 7, a ratchet wheel 71, a limiting block 72, a sliding rod 73, a spring 74, a pull rope 75, a material box 8, a protective plate 9, a metal pipe 10, a primary bidirectional screw 11, a rotating shaft 12, a sliding groove 121 and a handle 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a technical solution:

the metal tube 10 sanding device comprises a box body 1, a workbench 2, an end face polishing mechanism 3 and an internal polishing mechanism 5, wherein the top end of the box body 1 is fixedly connected with the workbench 2, the top end of the workbench 2 is provided with an arc-shaped groove 201, the metal tube 10 is placed in the arc-shaped groove 201, two groups of rectangular holes 101 are symmetrically formed in the top end of the box body 1 and positioned on two sides of the metal tube 10, the end face polishing mechanism 3 is respectively arranged in the two groups of rectangular holes 101, and the internal polishing mechanism 5 is arranged on the outer surface of the box body 1 and positioned on one side of the metal tube 10;

the end face polishing mechanism 3 comprises a fixed block 31, an electric cylinder 32, a primary rack 33 and a primary motor 34, the inner wall of the rectangular hole 101 is connected with the fixed block 31 in a sliding manner, the inner wall of the fixed block 31 is fixedly connected with the electric cylinder 32, one end of an output shaft of the electric cylinder 32 is fixedly connected with the primary rack 33, one end of the primary rack 33 and one side far away from the metal pipe 10 are fixedly connected with the primary motor 34, one end of an output shaft of the primary motor 34 is fixedly connected with a polishing assembly 6, a primary bidirectional screw 11 is arranged in the box body 1, the outer surface of the primary bidirectional screw 11 is positioned at two sides and is respectively in threaded connection with the inner walls of the two groups of fixed blocks 31, one end of the primary bidirectional screw 11 is rotatably connected with the inner wall of the box body 1, the other end of the primary bidirectional screw 11 penetrates through the inner wall of the box body 1 and is fixedly connected with a rotating shaft 12, and the outer surface of the rotating shaft 12 is fixedly connected with a handle 13;

the internal polishing mechanism 5 comprises a base 51, a supporting plate 52, a sliding rail 53, a bearing seat 54, a fixed seat 55, a three-level motor 56, a screw rod 57 and a guide block 58, wherein the base 51 is fixedly connected to the outer surface of the box body 1 and positioned on one side of the metal tube 10, the supporting plate 52 is fixedly connected to the bottom end of the base 51 and positioned on one side far away from the box body 1, the guide block 58 is fixedly connected to the top end of the base 51 and positioned on one side close to the box body 1, the sliding rail 53 is fixedly connected to the top end of the base 51 and positioned on one side far away from the box body 1, the fixed seat 55 is slidably connected to the outer surface of the sliding rail 53, the three-level motor 56 is fixedly connected to the top end of the fixed shaft of the three-level motor 56, the screw rod 57 is fixedly connected to one end of the output shaft of the three-level motor 56, the other end of the screw rod 57 penetrates through the outer surface of the guide block 58 and is fixedly connected with the polishing assembly 6, the outer surface of the screw rod 57 is connected with the inner wall of the guide block 58 through a bearing seat 54, the bottom end of the bearing block 54 is slidably connected to the outer surface of the slide rail 53.

When a user needs to sand the metal tube 10, firstly, the metal tube 10 is placed into the arc-shaped groove 201 at the upper end of the workbench 2, then the three-stage motor 56 is started, so that the three-stage motor 56 drives the screw rod 57 to rotate around the inner wall of the guide block 58, then the screw rod 57 drives the fixing seat 55 to slide towards one side close to the metal tube 10 along the outer surface of the sliding rail 53 through the motor, and the screw rod 57 drives the grinding assembly 6 to extend into the metal tube 10 for grinding; meanwhile, the screw 57 drives the bearing seat 54 to slide along the outer surface of the slide rail 53, so that a certain supporting effect can be achieved on the screw 57; after the polishing of the interior of the metal tube 10 is completed, the three-stage motor 56 is controlled to rotate reversely, so that the screw rod 57 drives the polishing assembly 6 to reset, then the electric cylinder 32 is started, the electric cylinder 32 extends out to drive the primary frame 33 to move upwards, so that the central axis of the output shaft of the primary motor 34 coincides with the central axis of the metal pipe 10, then the handle 13 is rotated, so that the handle 13 drives the first-stage bidirectional screw rod 11 to rotate through the rotating shaft 12, then the first-stage bidirectional screw rod 11 drives the two groups of fixing blocks 31 to move towards one side close to the metal pipe 10, when the polishing assembly 6 is close to the end part of the metal pipe 10, the primary motor 34 is started, so that the primary motor 34 drives the grinding component 6 to rotate, then, the grinding assembly 6 is controlled to grind the end part of the metal pipe 10 by rotating the handle 13, so that the labor intensity can be reduced, and the grinding efficiency can be improved; and, the inside of the metal pipe 10 can be effectively polished.

As an embodiment of the utility model, the top end of the workbench 2 is provided with a clamping mechanism 4, the clamping mechanism 4 comprises a fixed frame 41, a secondary bidirectional screw 42, guide rods 43, a secondary frame 44, a secondary motor 45, a connecting plate 46 and a clamping block 47, the fixed frame 41 is fixedly connected with the top end of the workbench 2 at the central position of two groups of internal grinding mechanisms 5, the secondary bidirectional screw 42 is rotatably connected with the inner wall of the fixed frame 41, the connecting plate 46 is respectively connected with the outer surface of the secondary bidirectional screw 42 at two sides of the fixed frame 41 by screw threads, one end of the secondary bidirectional screw 42 is fixedly connected with the secondary motor 45, the secondary motor 45 is fixedly connected with the outer surface of the workbench 2 through the secondary frame 44, two groups of guide rods 43 are respectively fixedly connected with the outer surface of the fixed frame 41 at two sides, and the two groups of guide rods 43 are positioned above the secondary bidirectional screw 42, the outer surface of the guide rod 43 is connected with the inner wall of the connecting plates 46 in a sliding manner, the top ends and the back surfaces of the two groups of connecting plates 46 are respectively and fixedly connected with clamping blocks 47, and the clamping blocks 47 are matched with the metal pipe 10.

When the metal pipe 10 is placed into the arc-shaped groove 201, the second-stage motor 45 is started, then the second-stage motor 45 drives the second-stage bidirectional screw 42 to rotate, so that the second-stage bidirectional screw 42 drives the two groups of connecting plates 46 to move towards the sides far away from each other along the outer surface of the guide rod 43, then the connecting plates 46 drive the clamping blocks 47 to move towards the sides close to the end parts of the metal pipe 10 until the two groups of clamping blocks 47 clamp the end parts of the metal pipe 10 at the same time, and therefore the metal pipe 10 can be fixed, and the metal pipe 10 is prevented from shaking in the grinding process to influence the grinding precision; moreover, the metal pipe 10 can be debugged in the middle through the two groups of clamping blocks 47, and the two groups of end face polishing mechanisms 3 can simultaneously polish the end part of the metal pipe 10.

As an embodiment of the utility model, the outer surface of the rotating shaft 12 is provided with a limiting mechanism 7, the limiting mechanism 7 comprises a ratchet 71, a limiting block 72, a sliding rod 73, a spring 74 and a pull rope 75, the ratchet 71 is fixedly connected to the outer surface of the box body 1 and is positioned on the outer side of the rotating shaft 12, two sets of sliding grooves 121 are symmetrically formed in the outer surface of the rotating shaft 12, the sliding rods 73 are fixedly connected to the inner walls of the two sets of sliding grooves 121 respectively, the spring 74 is sleeved on the outer surface of the sliding rod 73, one end of the spring 74 is fixedly connected to the inner wall of the sliding groove 121 and is close to one side of the box body 1, the other end of the spring 74 is fixedly connected to the limiting block 72, the inner wall of the limiting block 72 is slidably connected to the outer surface of the sliding rod 73, the limiting block 72 is matched with the ratchet 71, and the pull rope 75 is fixedly connected to the outer surface of the limiting block 72 and is positioned on one side far away from the box body 1.

When the end of the metal tube 10 needs to be polished, the pull rope 75 can be pulled, and then the pull rope 75 drives the two sets of limiting blocks 72 to slide along the outer surface of the slide rod 73, so that the limiting blocks 72 are disengaged from the ratchet 71, and the rotating shaft 12 can be rotated; meanwhile, the limiting block 72 pulls the spring 74 to store force, so that the limiting block 72 can reset after losing the pulling force, and then the pull rope 75 is sleeved at one end of the rotating shaft 12 without pulling the pull rope 75 all the time when the rotating shaft 12 is rotated, and the labor intensity can be reduced.

As an embodiment of the utility model, the polishing assembly 6 comprises a turntable 61, electric push rods 62, a control box 63, a mounting seat 64, telescopic rods 65 and grinding wheel sheets 66, one end of the output shaft of the first-stage motor 34 and one end of the output shaft of the third-stage motor 56 are respectively and fixedly connected with the turntable 61, a plurality of groups of electric push rods 62 are uniformly and fixedly connected with the outer surface of the turntable 61 in a ring shape, one end of the output shaft of each group of electric push rods 62 is respectively and fixedly connected with the grinding wheel sheets 66, the plurality of groups of grinding wheel sheets 66 are contracted together to form a ring, the mounting seat 64 is fixedly connected with the outer surface of the turntable 61 and positioned between two adjacent groups of electric push rods 62, the other end of the mounting seat 64 is fixedly connected with two groups of telescopic rods 65, the other ends of the two groups of telescopic rods 65 are respectively and fixedly connected with the inner walls of the two adjacent groups of grinding wheel sheets 66, one end of the turntable 61 is fixedly connected with the control box 63, a storage battery and a controller are arranged in the control box 63, the multiple groups of electric push rods 62 are electrically connected with the storage battery and the controller respectively.

When the polishing range of the polishing assembly 6 needs to be enlarged, the electric push rod 62 is controlled to extend through the controller, and then the electric push rod 62 drives the grinding wheel 66 to move to the side away from the turntable 61; meanwhile, the grinding wheel 66 stretches the telescopic rod 65, and can play a certain auxiliary supporting role for the electric push rod 62, so that a plurality of groups of grinding wheel 66 are dispersed, a circular ring with a diameter larger than the original diameter can be formed in the rotating process, and the grinding range is expanded.

As an embodiment of the present invention, a material box 8 is fixedly connected to the inner wall of the box body 1 and below the primary bidirectional screw 57; is convenient for storage and regularly removes waste materials.

As an embodiment of the utility model, a protection plate 9 is fixedly connected between the rectangular hole 101 and the first-stage bidirectional screw rod 11 on the outer surface of the fixing block 31; can prevent that the produced waste material of back of polishing from falling into the thread groove of the two-way lead screw 11 of one-level, can reduce the degree of wear of the two-way lead screw 11 of one-level, improve life.

As an embodiment of the present invention, the central axis of the electric push rod 62 and the central axis of the telescopic rod 65 located at both sides thereof are parallel to each other; the electric push rod 62 is prevented from being stuck in the process of extending.

The working principle is as follows: when a user needs to sand the metal pipe 10, firstly, the metal pipe 10 is placed into the arc-shaped groove 201 at the upper end of the workbench 2, then the secondary motor 45 is started, and then the secondary motor 45 drives the secondary bidirectional screw 42 to rotate, so that the secondary bidirectional screw 42 drives the two groups of connecting plates 46 to move towards one sides far away from each other along the outer surface of the guide rod 43, then the connecting plates 46 drive the clamping blocks 47 to move towards one sides close to the end parts of the metal pipe 10 until the two groups of clamping blocks 47 clamp the end parts of the metal pipe 10 at the same time, and therefore the metal pipe 10 can be fixed, and the metal pipe 10 is prevented from shaking in the grinding process to influence the grinding precision; moreover, the metal pipe 10 can be centrally debugged through the two groups of clamping blocks 47, so that the two groups of end surface polishing mechanisms 3 can simultaneously polish the end parts of the metal pipe 10;

after the metal pipe 10 is fixed, starting the three-stage motor 56, enabling the three-stage motor 56 to drive the screw rod 57 to rotate around the inner wall of the guide block 58, then enabling the screw rod 57 to drive the fixing seat 55 to slide towards one side close to the metal pipe 10 along the outer surface of the sliding rail 53 through the motor, and enabling the screw rod 57 to drive the polishing assembly 6 to extend into the metal pipe 10 for polishing; meanwhile, the screw 57 drives the bearing seat 54 to slide along the outer surface of the slide rail 53, so that a certain supporting effect can be achieved on the screw 57, and after the inside of the metal tube 10 is polished, the three-stage motor 56 is controlled to rotate reversely, so that the screw 57 drives the polishing assembly 6 to reset;

when the end of the metal tube 10 needs to be polished, the pull rope 75 is pulled first, and then the pull rope 75 drives the two sets of limiting blocks 72 to slide along the outer surface of the sliding rod 73, so that the limiting blocks 72 are disengaged from the ratchet 71, and the rotating shaft 12 can rotate; meanwhile, the limiting block 72 pulls the spring 74 to store force, so that the limiting block 72 can be reset after losing the pulling force, and then the pull rope 75 is sleeved at one end of the rotating shaft 12 without pulling the pull rope 75 all the time when the rotating shaft 12 is rotated, so that the labor intensity can be reduced; then the electric cylinder 32 is started, the first-stage rack 33 can be driven to move upwards by the extension of the electric cylinder 32, the central axis of the output shaft of the first-stage motor 34 is overlapped with the central axis of the metal pipe 10, then the handle 13 is rotated, the handle 13 drives the first-stage bidirectional screw rod 11 to rotate through the rotating shaft 12, then the first-stage bidirectional screw rod 11 drives the two groups of fixing blocks 31 to move towards one side close to the metal pipe 10, when the polishing component 6 is close to the end part of the metal pipe 10, the first-stage motor 34 is started, the first-stage motor 34 drives the polishing component 6 to rotate, then the polishing component 6 is controlled to polish the end part of the metal pipe 10 by rotating the handle 13, after polishing is finished, the electric cylinder 32 is controlled to reset, then the pull rope 75 is taken down from the rotating shaft 12, the limiting block 72 is clamped into the ratchet 71 to fix the rotating shaft 12, and finally the second-stage motor 45 is controlled to rotate reversely to loosen the metal pipe 10, then, the next group of workpieces is processed, so that the labor intensity can be reduced, and the polishing efficiency is improved; and, the inside of the metal pipe 10 can be effectively polished.

When the polishing range of the polishing assembly 6 needs to be enlarged, the electric push rod 62 is controlled to extend out through the controller, then the electric push rod 62 drives the grinding wheel 66 to move to one side away from the turntable 61, meanwhile, the telescopic rod 65 is stretched by the grinding wheel 66, and the electric push rod 62 can be supported in a certain auxiliary mode, so that multiple groups of grinding wheel 66 are dispersed, a circular ring larger than the original diameter can be formed in the rotating process, and the polishing range is enlarged.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. Metal tube sanding device, including box (1), workstation (2), terminal surface grinding machanism (3) and inside grinding machanism (5), its characterized in that: the polishing device comprises a box body (1), a workbench (2) is fixedly connected to the top end of the box body (1), an arc-shaped groove (201) is formed in the top end of the workbench (2), a metal pipe (10) is placed in the arc-shaped groove (201), two groups of rectangular holes (101) are symmetrically formed in the top end of the box body (1) and located on two sides of the metal pipe (10), end face polishing mechanisms (3) are arranged in the two groups of rectangular holes (101) respectively, and an internal polishing mechanism (5) is arranged on the outer surface of the box body (1) and located on one side of the metal pipe (10);

the end face polishing mechanism (3) comprises a fixing block (31), an electric cylinder (32), a first-level rack (33) and a first-level motor (34), the inner wall of the rectangular hole (101) is connected with the fixing block (31) in a sliding mode, the inner wall of the fixing block (31) is fixedly connected with the electric cylinder (32), one end of an output shaft of the electric cylinder (32) is fixedly connected with the first-level rack (33), one end of the first-level rack (33) is fixedly connected with the first-level motor (34) on one side far away from the metal pipe (10), one end of the output shaft of the first-level motor (34) is fixedly connected with a polishing component (6), a first-level bidirectional lead screw (11) is arranged in the box body (1), the outer surface of the first-level bidirectional lead screw (11) is located on two sides and is connected with the inner wall threads of the two groups of fixing blocks (31) respectively, one end of the first-level bidirectional lead screw (11) is connected with the inner wall of the box body (1) in a rotating mode, the other end of the primary bidirectional screw rod (11) penetrates through the inner wall of the box body (1) and is fixedly connected with a rotating shaft (12), and a handle (13) is fixedly connected to the outer surface of the rotating shaft (12);

the internal polishing mechanism (5) comprises a base (51), a supporting plate (52), a sliding rail (53), a bearing seat (54), a fixing seat (55), a three-level motor (56), a screw rod (57) and a guide block (58), wherein the base (51) is fixedly connected to one side of the metal pipe (10) and the outer surface of the box body (1), the supporting plate (52) is fixedly connected to one side of the base (51) far away from the box body (1), the guide block (58) is fixedly connected to one side of the top end of the base (51) close to the box body (1), the sliding rail (53) is fixedly connected to one side of the top end of the base (51) far away from the box body (1), the fixing seat (55) is slidably connected to the outer surface of the sliding rail (53), the three-level motor (56) is fixedly connected to the top end of the fixing seat (55), and the screw rod (57) is fixedly connected to one end of an output shaft of the three-level motor (56), the other end of lead screw (57) runs through the surface and the fixedly connected with subassembly (6) of polishing of guide block (58), the surface of lead screw (57) and the inner wall threaded connection of guide block (58), the surface of lead screw (57) just is close to one side of tertiary motor (56) and is connected with bearing frame (54) through the bearing rotation, the bottom of bearing frame (54) and the surface sliding connection of slide rail (53).

2. The metal tube sanding device according to claim 1, wherein: the top end of the workbench (2) is provided with a clamping mechanism (4), the clamping mechanism (4) comprises a fixing frame (41), a second-stage bidirectional screw rod (42), a guide rod (43), a second-stage rack (44), a second-stage motor (45), a connecting plate (46) and a clamping block (47), the fixing frame (41) is fixedly connected to the top end of the workbench (2) and is positioned at the center position of two groups of internal grinding mechanisms (5), the second-stage bidirectional screw rod (42) is rotatably connected to the inner wall of the fixing frame (41), the connecting plate (46) is respectively in threaded connection with the outer surface of the second-stage bidirectional screw rod (42) and is positioned at two sides of the fixing frame (41), one end of the second-stage bidirectional screw rod (42) is fixedly connected with the second-stage motor (45), and the second-stage motor (45) is fixedly connected with the outer surface of the workbench (2) through the second-stage rack (44), the utility model discloses a two-stage bidirectional lead screw, including mount (41), guide rod (43), connecting plate (46), the surface of mount (41) just is located both sides two sets of guide rod (43) of fixedly connected with respectively, and two sets of guide rod (43) are located the top position of two-stage bidirectional lead screw (42), the surface of guide rod (43) and the inner wall sliding connection of connecting plate (46), and are two sets of the top of connecting plate (46) just is located the back and presss from both sides tight piece (47) of fixedly connected with respectively, press from both sides tight piece (47) and tubular metal resonator (10) looks adaptation.

3. The metal tube sanding device according to claim 1, wherein: the outer surface of the rotating shaft (12) is provided with a limiting mechanism (7), the limiting mechanism (7) comprises a ratchet wheel (71), a limiting block (72), a sliding rod (73), a spring (74) and a pull rope (75), the outer surface of the box body (1) is fixedly connected with the ratchet wheel (71) on the outer side of the rotating shaft (12), two groups of sliding grooves (121) are symmetrically formed in the outer surface of the rotating shaft (12), the inner walls of the two groups of sliding grooves (121) are fixedly connected with the sliding rod (73) respectively, the spring (74) is sleeved on the outer surface of the sliding rod (73), one end of the spring (74) is fixedly connected with the inner wall of the sliding groove (121) and close to one side of the box body (1), the other end of the spring (74) is fixedly connected with the limiting block (72), the inner wall of the limiting block (72) is slidably connected with the outer surface of the sliding rod (73), and the limiting block (72) is matched with the ratchet wheel (71), and a pull rope (75) is fixedly connected to the outer surface of the limiting block (72) and one side far away from the box body (1).

4. The metal tube sanding device according to claim 1, wherein: the polishing assembly (6) comprises a turntable (61), electric push rods (62), a control box (63), a mounting seat (64), telescopic rods (65) and grinding wheel pieces (66), one ends of output shafts of a first-level motor (34) and a third-level motor (56) are fixedly connected with the turntable (61) respectively, a plurality of groups of electric push rods (62) are uniformly and fixedly connected to the outer surface of the turntable (61) in an annular mode, one ends of output shafts of the plurality of groups of electric push rods (62) are fixedly connected with the grinding wheel pieces (66) respectively, the plurality of groups of grinding wheel pieces (66) are contracted together to form a circular ring, the mounting seat (64) is fixedly connected to the outer surface of the turntable (61) and is positioned between two adjacent groups of electric push rods (62), two groups of telescopic rods (65) are fixedly connected to the other end of the mounting seat (64), and the other ends of the two groups of telescopic rods (65) are fixedly connected with the inner walls of the two adjacent groups of grinding wheel pieces (66) respectively, one end fixedly connected with control box (63) of carousel (61), be provided with battery and controller in control box (63), the multiunit electric putter (62) link to each other with battery and controller electrical property respectively.

5. The metal tube sanding device according to claim 1, wherein: the inner wall of the box body (1) is fixedly connected with a material box (8) below the first-stage bidirectional screw rod (57).

6. The metal tube sanding device according to claim 1, wherein: the outer surface of the fixing block (31) is fixedly connected with a protection plate (9) between the rectangular hole (101) and the first-stage bidirectional screw rod (11).

7. The metal tube sanding device according to claim 4, wherein: the central axis of the electric push rod (62) is parallel to the central axis of the telescopic rod (65) positioned at the two sides of the electric push rod.

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