Double-station inner polishing equipment and pipe machined by same

Abstract

The utility model discloses a double-station internal polishing device and a pipe processed by the same, the double-station internal polishing device comprises a bearing module, a plurality of supporting frames, a plurality of polishing modules, a plurality of polishing modules and a plurality of polishing modules, the bearing module is provided with a plurality of supporting frames, each supporting frame is provided with a transverse moving conveying belt, and all the transverse moving conveying belts are jointly provided with a plurality of supporting parts; the driving frame is provided with a plurality of power wheels which can be lifted up and down and are provided with power; the number of the polishing modules is two, each polishing module comprises a base, a moving trolley and a straight rod, the two bases are located on the front side and the rear side of the bearing module correspondingly, the moving trolleys are slidably connected to the corresponding bases, the moving trolleys are connected with the straight rods, and the straight rods are coaxial with different pipes; an airflow channel is formed in the straight rod, the straight rod is connected with a pressurizing air pipe communicated with the airflow channel, and a polishing piece and a nozzle communicated with the airflow channel are arranged at the tail end of the straight rod. According to the pipe inner polishing device, liquid left in an inner hole of a pipe can be blown away while the pipe is internally polished, the drying procedure is omitted, and the production cycle of the pipe is greatly shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metal processing, especially to double -station inner polishing equipment and pipe of processing thereof. BACKGROUND

[0002] In the related art, such as the public number CN218613181U 《A double -end polisher》, it discloses the technical scheme that adopts two sides polishing head to polish steel pipe hole respectively, can effectively promote the inner polishing efficiency of steel pipe.

[0003] Because steel pipe is generally cut from long pipe, in the process of cutting, it is necessary to use emulsion to reduce the temperature of the cut continuously, avoid the oxidation of steel pipe due to high temperature, therefore, the inner and outer walls of each steel pipe are left with emulsion, especially for the inner wall of steel pipe, the residual emulsion is difficult to be discharged completely. When the steel pipe is polished, it is necessary to ensure that the inner wall of the steel pipe is free of liquid residue, otherwise, when the polishing head is used for inner polishing, the liquid may react with the metal of the inner wall of the steel pipe under the action of friction heat, which not only causes corrosion and damage to the inner wall of the steel pipe, but also may produce flammable and explosive gas such as hydrogen, increasing the safety risk. In addition, the residue of the liquid will cover the surface of the inner wall of the steel pipe, hinder the direct contact between the polishing head and the metal surface, and thus affect the polishing quality and efficiency.

[0004] Therefore, in the prior art, the steel pipe must be dried before inner polishing, which prolongs the production cycle of the steel pipe. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a double -station inner polishing equipment, which can be polished without waiting for the drying of the steel pipe.

[0006] The double -station inner polishing equipment according to the first aspect embodiment of the utility model comprises:

[0007] The supporting module is provided with a plurality of supporting frames, all the supporting frames are arranged at intervals along the front -back direction, each supporting frame is provided with a transverse conveying belt, the transverse conveying belt has a transverse path that rotates along the left -right direction, all the transverse conveying belts are provided with a plurality of supporting parts, all the supporting parts are arranged at intervals along the transverse path, one of the supporting parts has a first supporting space arranged along the front -back direction, another supporting part has a second supporting space arranged along the front -back direction, and the first supporting space and the second supporting space are used for supporting the pipe.

[0008] A driving frame is provided with a plurality of power wheels which can be lifted up and down, the power wheels are located above the supporting module, at least two power wheels are driven by a power device, the power wheels have rotating axes arranged in the front-back direction, each pipe is rotated by at least one power wheel;

[0009] Two polishing modules are provided, each polishing module includes a base, a moving trolley and a straight rod, two bases are respectively located at the front side and the rear side of the supporting module, the moving trolley is slidingly connected to the corresponding base in the front-back direction, the moving trolley is connected with the straight rod, the straight rods of the two polishing modules are respectively connected to the first supporting space and the second supporting space, the straight rod is coaxial with the corresponding pipe; the straight rod is provided with an airflow channel, the straight rod is connected with a booster air pipe which is communicated with the airflow channel, the end of the straight rod is provided with a polishing piece and a nozzle which is communicated with the airflow channel, the nozzle is closer to the supporting module than the polishing piece.

[0010] The double-station inner polishing equipment has the following beneficial effects: in the first processing, a pipe is first placed in the first supporting space of the supporting module, then the power wheel is controlled to press the pipe and start the moving trolley of a supporting module, the power wheel drives the pipe to rotate under the driving of the power device, at the same time, the moving trolley drives the straight rod to enter the inner hole of the pipe, in this process, the booster air pipe sprays high-pressure gas into the inner hole of the pipe through the nozzle, so that the residual liquid in the pipe can flow to the moving direction of the straight rod under the blowing of the high-pressure gas, thereby ensuring that the polishing piece and the inner hole of the pipe are dry friction, and finally the residual liquid in the pipe flows to the other side of the pipe under the blowing of the high-pressure gas as the straight rod gradually penetrates; after the polishing piece completes the one-side inner polishing of the inner hole of the pipe, the power wheel rises to avoid the space, the transverse conveying belt is started, the pipe that has been subjected to the one-side inner polishing is moved to the next station, at this time, the first supporting space for supporting the pipe becomes the second supporting space by nature, the original first supporting space is supplemented by the supporting part and holds the new pipe, then the power wheel is lowered again to press and the moving trolley is driven again, for the pipe that has been subjected to the one-side inner polishing, the straight rod that is connected to the second supporting space enters from the other side of the pipe, the nozzle of the straight rod blows the residual liquid in the pipe, thereby ensuring that the polishing piece and the inner hole of the pipe are dry friction, and finally the overall inner polishing of the pipe is realized, at the same time, the straight rod connected to the first supporting space performs one-side inner polishing on the new pipe, after that, the power wheel rises to avoid the space, the transverse conveying belt is started again, the pipe that has been subjected to the inner polishing is moved to the discharging station, the pipe that has been subjected to the one-side inner polishing is moved to the next station, and the original first supporting space is supplemented by the supporting part; compared with the prior art, the utility model is suitable for processing relatively long pipes, the utility model can blow the liquid remaining in the inner hole of the pipe while performing the inner polishing of the pipe, although the inner polishing of the pipe needs to be performed in two steps, but the dry friction between the polishing piece and the inner hole of the pipe can be maintained in each step of the inner polishing process, the drying process is saved, and the production cycle of the pipe is greatly shortened.

[0011] According to some embodiments of the utility model, one supporting part has a third supporting space arranged along the front-rear direction, and the transverse moving path of the transverse conveying belt sequentially passes through the third supporting space, the first supporting space and the second supporting space. The third supporting space is used for material preparation, and the pipe in the third supporting space does not participate in the inner polishing process. When the pipe in the first supporting space is moved to the next station, the pipe in the third supporting space is moved to the next station and naturally becomes the first supporting space.

[0012] According to some embodiments of the utility model, specifically, each of the supporting parts comprises a plurality of supporting assemblies, the plurality of supporting assemblies are arranged at intervals along the front-rear direction, each of the supporting assemblies is provided with two rotating rollers, the two rotating rollers are arranged at intervals along the left-right direction, the distance between the two rotating rollers is smaller than the diameter of the pipe, and the first supporting space, the second supporting space and the third supporting space are formed by the plurality of rotating rollers.

[0013] According to some embodiments of the utility model, in order to realize the simultaneous processing of a plurality of pipes, at least two adjacent supporting parts are provided with the first supporting space, at least two adjacent supporting parts are provided with the second supporting space, at least two adjacent supporting parts are provided with the third supporting space, and the number of straight rods is consistent with the sum of the number of the first supporting space and the second supporting space.

[0014] According to some embodiments of the utility model, the supporting assemblies forming the first supporting space and the second supporting space are defined as processing supporting assemblies, the number of power wheels is consistent with the number of processing supporting assemblies, the moving paths of the power wheels intersect the corresponding pipes, at this time, the pipes in the first supporting space and the second supporting space are driven to rotate by a plurality of power wheels, so as to avoid that the pipes cannot rotate uniformly due to insufficient driving force.

[0015] According to some embodiments of the utility model, all the power wheels form a plurality of driving assemblies, each of the driving assemblies is provided with a plurality of power wheels arranged at intervals along the left-right direction, and all the power wheels of each of the driving assemblies are connected with a transmission pair. If the driving assembly is connected with a power device, the transmission pair of the driving assembly is driven by one power device, so as to save manufacturing cost.

[0016] According to some embodiments of the utility model, the driving frame is connected with a plurality of lifting devices, and each of the lifting devices is connected with the driving assembly. Each driving assembly is driven by one lifting device, so as to save manufacturing cost.

[0017] According to some embodiments of the utility model, since the polishing piece is a consumable, in order to facilitate replacement of the polishing piece, the polishing piece is detachably connected to the straight rod.

[0018] According to some embodiments of the utility model, each polishing module further comprises a free trolley, the free trolley is located between the moving trolley and the supporting module, the free trolley is slidably connected to the corresponding base in the front-back direction, the free trolley is provided with a middle bracket for supporting the straight rod, and the free trolley is connected with the corresponding moving trolley through a flexible traction strip. Since the length of the straight rod is relatively long, the free trolley is needed to support the straight rod, and along with the movement of the moving trolley, the moving trolley drives the free trolley to move together after contacting the free trolley, and the moving trolley resets the free trolley together through the flexible traction strip to ensure effective support of the straight rod.

[0019] According to the second aspect of the utility model, the pipe is processed by the double-station internal polishing equipment.

[0020] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0022] Figure 1 is a perspective view of the double-station internal polishing equipment provided by the embodiments of the utility model;

[0023] Figure 2 is Figure 1 is a front view of the double-station internal polishing equipment shown in the figure;

[0024] Figure 3 is Figure 1 is a top view of the double-station internal polishing equipment shown in the figure;

[0025] Figure 4 is a perspective view of the polishing module provided by the embodiments of the utility model;

[0026] Figure 5 is a side view of the double-station internal polishing equipment provided by the embodiments of the utility model after hiding part structure.

[0027] In the drawings: 100 - support module, 200 - driving frame, 300 - polishing module, 400 - pipe, 110 - support frame, 111 - transverse conveying belt, 120 - support assembly, 121 - rotating roller, 130 - first support part, 140 - second support part, 210 - lifting device, 220 - driving assembly, 221 - power wheel, 230 - power device, 310 - base, 320 - moving trolley, 330 - free trolley, 340 - fixed bracket, 350 - straight rod, 321 - power source, 331 - intermediate bracket, 332 - flexible traction strip, 351 - polishing piece, 352 - pressurized air pipe, 353 - nozzle, 150 - third support part, 240 - transmission pair, 250 - mounting frame. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and should not be understood as a limitation of the present application.

[0029] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as a limitation of the present application.

[0030] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, third, it is only for the purpose of distinguishing technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0031] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0032] As Figures 1 to 3As shown, the double-station inner polishing equipment according to the first aspect embodiment of the utility model, it includes support module 100, drive frame 200 and two polishing module 300, wherein support module 100 is used to support the pipe 400 to be polished, in order to realize the positioning of pipe 400, support module 100 is equipped with multiple support frame 110, all support frame 110 is spaced apart along the front and back direction, since the utility model is mainly used for processing the pipe 400 of 6 meters in length, therefore the number of support frame 110 can be selected as four, four support frame 110 is commonly used for supporting pipe 400, avoid pipe 400 when supporting due to the excessive deflection and appear bending.

[0033] Next, each support frame 110 is equipped with horizontal transfer conveyor belt 111, horizontal transfer conveyor belt 111 mainly includes mounting frame, horizontal transfer motor, driving wheel, driven wheel and conveying belt, horizontal transfer motor, driving wheel and driven wheel are all connected on mounting frame, horizontal transfer motor drives driving wheel to rotate, and driving wheel and driven wheel are remotely driven through conveying belt. The projection of conveying belt on the ground is set along the left and right direction, so horizontal transfer conveyor belt 111 has horizontal transfer path that rotates along the left and right direction. The surface of conveying belt is spaced apart along its length direction and is equipped with multiple support assemblies 120, each support assembly 120 is equipped with two rotating rollers 121, two rotating rollers 121 are spaced apart along the left and right direction, and the distance between two rotating rollers 121 is less than the diameter of pipe 400. The support assemblies 120 of all horizontal transfer conveyor belts 111 are one-to-one and directly opposite in the front and back direction, so all support assemblies 120 located in the same front and back straight line direction can jointly constitute a support part, and all support parts are spaced apart along the horizontal transfer path.

[0034] When horizontal transfer motor starts, conveying belt rotates along horizontal transfer path, at this time, all support parts also rotate. Specifically, the utility model defines the support part located on the first position as first support part 130, and also defines the support part located on the second position as second support part 140. The first position and the second position are both located on the upper surface of conveying belt, and the first position is adjacent to the second position. Since all support parts can rotate with conveying belt, the first support part 130 and the second support part 140 can be any support part, when a support part is moved to the first position, at this time, the support part is the first support part 130; when a support part is moved to the second position, at this time, the support part is the second support part 140.

[0035] The first supporting part 130 has a first supporting space arranged along the front-rear direction, which is formed by all the rotating rollers 121 of the first supporting part 130; the second supporting part 140 has a second supporting space arranged along the front-rear direction, which is formed by all the rotating rollers 121 of the second supporting part 140, and the first supporting space and the second supporting space are respectively used for supporting different pipes 400. When the pipe 400 is supported in any one of the supporting spaces, the pipe 400 is positioned and supported by the rotating rollers 121 on the left and right sides, and since the rotating rollers 121 can freely rotate, the pipe 400 still has a rotational degree of freedom when being supported, at which time the pipe 400 extends along the front-rear direction.

[0036] On the other hand, the driving frame 200 extends upward to the upper side of the supporting module 100, and the driving frame 200 is provided with a lifting device 210 at the position corresponding to the supporting assembly 120 of the first supporting part 130 and the second supporting part 140, each lifting device 210 is connected with a driving assembly 220, each driving assembly 220 is provided with a power wheel 221, the power wheel 221 can be driven by a power device 230, the moving path of the power wheel 221 intersects the corresponding pipe 400, and the power wheel 221 has a rotational axis arranged along the front-rear direction. In this embodiment, the lifting device 210 can be selected as a pneumatic cylinder, the power device 230 can be selected as an electric motor, and the power wheel 221 can be selected as a non-metallic wear-resistant material component, and the power wheel 221 is located directly above the corresponding supporting space. When the pipe 400 is positioned and supported in the first supporting part 130 and the second supporting part 140, the lifting device 210 is started to drive the power wheel 221 to press downward to the pipe 400, at which time the pipe 400 has a rotational degree of freedom in addition to all other degrees of freedom being limited, and when the power device 230 drives the power wheel 221 to rotate, the pipe 400 rotates with the power wheel 221 under the action of friction, thereby realizing high-speed rotation of the pipe 400. Since the driving assembly 220 and the supporting assembly 120 are respectively located on the upper and lower sides of the pipe 400, the forces in the two directions will counteract each other, thereby avoiding the generation of shear stress that can cause bending of the pipe 400.

[0037] On the other hand, as Figure 4As shown, the two polishing modules 300 each include a base 310, a moving trolley 320, a free trolley 330, a fixed bracket 340 and a straight rod 350, one base 310 is located at the front side of the supporting module 100, and the other base 310 is located at the rear side of the supporting module 100. The moving trolley 320 and the free trolley 330 are slidingly connected to the corresponding base 310 in the front-rear direction, and the fixed bracket 340 is fixedly connected to the corresponding base 310, wherein the moving trolley 320 is driven by a power source 321, the free trolley 330 is not powered, and the moving trolley 320, the free trolley 330, the fixed bracket 340 and the supporting module 100 are sequentially arranged in the front-rear direction, that is, the free trolley 330 is located between the moving trolley 320 and the fixed bracket 340, and the fixed bracket 340 is closer to the supporting module 100 than the free trolley 330. The moving trolley 320 is connected to the straight rod 350, the straight rods 350 of the two polishing modules 300 are respectively connected to the first supporting space and the second supporting space, and the straight rod 350 is coaxial with the corresponding pipe 400. Since the length of the pipe 400 is 6 meters, it has a relatively long length, and the straight rod 350 lacks good support when it extends into the inner hole of the pipe 400, therefore, in order to prolong the service life of the straight rod 350, the length of the straight rod 350 should be shorter than the length of the pipe 400, generally about 3.5 meters. When the moving trolley 320 travels in the front-rear direction by the power source 321, in order to avoid the straight rod 350 from being bent due to excessive deflection, and then unable to accurately enter the inner hole of the corresponding pipe 400, the free trolley 330 is provided with an intermediate bracket 331 for supporting the straight rod 350, and the fixed bracket 340 is used to support the end of the straight rod 350, so as to maintain the straightness of the straight rod 350.

[0038] Since the free trolley 330 is not powered, in order to control the position of the free trolley 330, a flexible traction strip 332 is connected between the free trolley 330 and the moving trolley 320, which can be selected as a chain, a cloth belt or other flexible materials. In use, as the moving trolley 320 travels, the moving trolley 320 gradually approaches the free trolley 330, and after contacting the free trolley 330, the moving trolley 320 drives the free trolley 330 to travel together until the free trolley 330 abuts against the fixed bracket 340. The free trolley 330 is provided with a travel switch (not shown in the figure) on the side facing the fixed bracket 340, once the travel switch is blocked by the fixed bracket 340, the moving trolley 320 stops traveling immediately, thereby limiting the maximum extension distance of the straight rod 350. During the resetting process of the moving trolley 320, when the moving trolley 320 is reset to a certain position, it pulls the free trolley 330 to reset together through the flexible traction strip 332, so as to ensure the effective support of the straight rod 350.

[0039] In order to realize the inner polishing of the inner hole of the pipe 400, the end of the straight rod 350 is detachably connected with a polishing piece 351, which can be a grinding head. The grinding head can be of existing materials, has multiple flexible abrasive sheets, and is connected with the straight rod 350 in a sleeving manner. The grinding head is sleeved in the recess at the end of the straight rod 350, and the connection between the two has a key connection structure to limit the rotational freedom of the grinding head. Since the grinding head is a consumable, in order to facilitate the assembly and disassembly of the grinding head, the grinding head and the straight rod 350 can be positioned and connected by a snap spring. When it is necessary to disassemble the grinding head, only the snap springs on the front and rear sides of the grinding head need to be removed. At this time, the front and rear positions of the grinding head are no longer limited by the snap springs, so that the grinding head can be smoothly taken out of the straight rod 350.

[0040] In other embodiments, the grinding head and the straight rod 350 can also have different detachable connection structures, which are not limited to the above embodiments.

[0041] In order to be able to polish the inner hole of the pipe 400 without drying the pipe 400, the straight rod 350 is provided with an airflow channel. The first end of the straight rod 350 is connected with a booster air pipe 352 which is communicated with the airflow channel. The end of the straight rod 350 is provided with a nozzle 353 which is communicated with the airflow channel, and the nozzle 353 is closer to the supporting module 100 than the polishing piece 351.

[0042] With the above structure, during the first processing, a pipe 400 is first supported in the first supporting space of the supporting module 100, and then the lifting device 210 is controlled to press the pipe 400 downward by the power wheel 221 and start the movement of a supporting module 100. The power wheel 221 drives the pipe 400 to rotate under the drive of the power device 230, and at the same time, the movement trolley 320 drives the straight rod 350 to enter the inner hole of the pipe 400. In this process, the booster air pipe 352 sprays high-pressure gas into the inner hole of the pipe 400 through the nozzle 353, so that the residual liquid in the pipe can flow in the direction of movement of the straight rod 350 under the blowing of the high-pressure gas, thereby ensuring that the polishing piece 351 and the inner hole of the pipe 400 are dry friction. With the gradual deepening of the straight rod 350, the residual liquid in the pipe finally flows to the other side of the pipe 400 under the blowing of the high-pressure gas, and then the movement trolley 320 drives the straight rod 350 to reset, so as to complete the single-side inner polishing of the inner hole of the pipe 400.

[0043] After that, the lifting device 210 is controlled to make the power wheel 221 rise and avoid the pipe 400, the horizontal conveying belt 111 is started to move the pipe 400 which has been subjected to the single-side inner polishing to the next position, at this time, the pipe 400 is moved from the first position to the second position, and the original first position is supplemented by the supporting part and holds the new pipe 400. After that, the lifting device 210 is controlled to make the power wheel 221 press the pipe 400 downwards and start the moving trolley 320 of the two supporting modules 100, and the power wheel 221 drives the pipe 400 to rotate under the driving of the power device 230. For the pipe 400 which has been subjected to the single-side inner polishing, the straight rod 350 which is connected to the second supporting space enters from the other side of the pipe 400, the nozzle 353 of the straight rod 350 blows the liquid remaining in the pipe to ensure that the polishing piece 351 rubs with the inner hole of the pipe 400 dryly, and finally realizes the overall inner polishing of the pipe 400. At the same time, the straight rod 350 which is connected to the first supporting space enters from one side of the new pipe 400, the nozzle 353 of the straight rod 350 blows the liquid remaining in the pipe to ensure that the polishing piece 351 rubs with the inner hole of the pipe 400 dryly, and finally realizes the single-side inner polishing of the pipe 400.

[0044] Then, the lifting device 210 is controlled to make the power wheel 221 rise and avoid the pipe 400, the horizontal conveying belt 111 is started again to move the pipe 400 which has been subjected to the inner polishing to the discharging position, the pipe 400 which has been subjected to the single-side inner polishing is moved to the next position, at this time, the pipe 400 is moved from the first position to the second position, and the original first position is supplemented by other supporting parts. Compared with the prior art, the utility model is suitable for processing relatively long pipes 400, the utility model can blow the liquid remaining in the inner hole of the pipe 400 while polishing the inner hole of the pipe 400, although the inner polishing of the pipe 400 needs to be executed in two steps, but the inner polishing process of each step can keep the dry rubbing between the polishing piece 351 and the inner hole of the pipe 400, the drying process is saved, and the production cycle of the pipe 400 is greatly shortened.

[0045] As shown in Figure 5 In some embodiments of the utility model, the upper surface of the conveying belt also has a third position, the third position is adjacent to the first position, the utility model defines the supporting part located on the third position as a third supporting part 150, the third supporting part 150 has a third supporting space arranged along the front-back direction, the third supporting space is formed by all the rotating rollers 121 of the third supporting part 150, and the horizontal movement path of the horizontal conveying belt 111 sequentially passes through the third position, the first position and the second position. Since all the supporting parts can rotate with the conveying belt, the third supporting part 150 can be any supporting part, when a supporting part is moved to the third position, at this time, the supporting part is the third supporting part 150.

[0046] The third supporting part 150 is used for standby, which does not participate in the inner polishing process, so the power wheel 221 is not arranged at the corresponding position of the third supporting part 150. When the pipe 400 of the first supporting part 130 is single-sidedly polished, the transverse conveying belt 111 drives the pipe 400 to move to the second position, at this time, the pipe 400 originally located at the third position is moved to the first position, so as to realize the replenishment of the first position. The advantage of such arrangement is that the pipe 400 is polished in the first position and the second position, and the staff can place the pipe 400 in the third position in advance, and after the pipe 400 is processed, the new pipe 400 can be immediately replenished to the first position, so as to improve the operation efficiency of the equipment.

[0047] In some embodiments of the utility model, in order to improve work efficiency, the number of the first supporting part 130, the second supporting part 140 and the third supporting part 150 is multiple, all the first supporting parts 130 are arranged side by side, all the second supporting parts 140 are arranged side by side, all the third supporting parts 150 are arranged side by side, and the number of the three is consistent. That is to say, the space of the first position, the space of the second position and the space of the third position are enough to accommodate the same number of supporting parts. In order to facilitate the description, the utility model defines the supporting assembly 120 located at the first position and the second position as a processing supporting assembly. Correspondingly, the number of the power wheel 221 is consistent with the number of the processing supporting assembly, and the number of the straight rod 350 is consistent with the sum of the number of the first supporting part 130 and the second supporting part 140, so as to satisfy the simultaneous processing of multiple pipes 400.

[0048] Suppose that the number of the first supporting part 130, the second supporting part 140 and the third supporting part 150 is three, then nine pipes 400 can be placed on the supporting module 100 at the same time, three pipes 400 located at the first position and three pipes 400 located at the second position are driven by the corresponding power wheel 221; the rear section of the inner hole of the three pipes 400 located at the first position is polished by the three straight rods 350 of one polishing module 300, and the front section of the inner hole of the three pipes 400 located at the second position is polished by the three straight rods 350 of another polishing module 300.

[0049] If one pipe 400 is supported by four supporting assemblies 120, then one pipe 400 is pressed downward by four power wheels 221. In order to save cost, although one pipe 400 is pressed downward by four power wheels 221, only two power wheels 221 or three power wheels 221 are connected with the power device 230, and the remaining power wheels 221 are not powered. Of course, four power wheels 221 can also be connected with the power device 230, and it is not limited to the above embodiment.

[0050] In other embodiments, the power wheels 221 can also be located directly above the two pipes 400, and one power wheel 221 abuts against the two pipes 400 at the same time to drive the two pipes 400 to rotate synchronously.

[0051] Further, in order to save manufacturing cost, each driving assembly 220 is provided with a plurality of power wheels 221 which are arranged at intervals in the left-right direction. If the number of the first supporting portions 130 and the second supporting portions 140 is one, then each driving assembly 220 is provided with two power wheels 221 which are arranged at intervals in the left-right direction. If the number of the first supporting portions 130 and the second supporting portions 140 is three, then each driving assembly 220 is provided with six power wheels 221 which are arranged at intervals in the left-right direction. All the power wheels 221 of each driving assembly 220 are connected synchronously through the transmission pair 240. If the driving assembly 220 is connected with the power device 230, then the transmission pair 240 of the driving assembly 220 is driven by one power device 230, so that all the power wheels 221 of the driving assembly 220 have a synchronous rotating connection relationship. When one power device 230 is started, all the power wheels 221 which have a transmission relationship with the power device 230 also rotate synchronously, and then drive all the pipes 400 located at the first position and the second position to rotate at the same speed. If each pipe 400 is supported by four supporting assemblies 120, then the number of the driving assemblies 220 is four.

[0052] Further, in order to save manufacturing cost, all the power wheels 221 of each driving assembly 220 are connected through one mounting frame 250, and each mounting frame 250 is connected with one lifting device 210, that is, a plurality of power wheels 221 share one lifting device 210, so as to effectively reduce the number of the lifting devices 210. When the lifting device 210 extends downward, the whole driving assembly 220 moves downward; when the lifting device 210 retracts upward, the whole driving assembly 220 moves upward.

[0053] The pipe 400 according to the second aspect embodiment of the present application is processed by the double-station internal polishing equipment according to the first aspect embodiment of the present application.

[0054] Since the pipe 400 adopts all the technical solutions of the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0055] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the present application.

Claims

1. A double-station internal polishing apparatus, characterized by, The utility model relates to a pipe polishing device, including: A supporting module (100) is provided with a plurality of supporting frames (110), all supporting frames (110) are spaced apart along the front and back direction, and each supporting frame (110) is provided with a transverse conveying belt (111), the transverse conveying belt (111) has a transverse path that rotates along the left and right directions, all transverse conveying belts (111) are commonly provided with a plurality of supporting parts, all supporting parts are spaced apart along the transverse path, one of the supporting parts has a first supporting space arranged along the front and back direction, and another supporting part has a second supporting space arranged along the front and back direction, and the first supporting space and the second supporting space are used for supporting the pipe (400); A driving frame (200) is provided with a plurality of power wheels (221) that can be lifted up and down, the power wheels (221) are located above the supporting module (100), at least two power wheels (221) are driven by a power device (230), the power wheels (221) have a rotation axis arranged along the front and back direction, and each pipe (400) is rotated by at least one power wheel (221). A polishing module (300) is provided with two, each polishing module (300) includes a base (310), a moving trolley (320) and a straight rod (350), two bases (310) are located at the front side and the rear side of the supporting module (100) respectively, the moving trolley (320) is slidably connected to the corresponding base (310) along the front and back direction, the moving trolley (320) is connected with the straight rod (350), the straight rods (350) of the two polishing modules (300) are respectively connected to the first supporting space and the second supporting space, and the straight rod (350) is coaxial with the corresponding pipe (400); the straight rod (350) is provided with an airflow channel, the straight rod (350) is connected with a booster air pipe (352) communicated with the airflow channel, and the end of the straight rod (350) is provided with a polishing part (351) and a nozzle (353) communicated with the airflow channel, and the nozzle (353) is closer to the supporting module (100) than the polishing part (351).

2. The dual station inside polishing apparatus of claim 1, wherein: One of the supporting parts has a third supporting space arranged along the front and back direction, and the transverse path of the transverse conveying belt (111) sequentially passes through the third supporting space, the first supporting space and the second supporting space.

3. The dual station inside polishing apparatus of claim 2, wherein: Each supporting part includes a plurality of supporting assemblies (120), and the plurality of supporting assemblies (120) are spaced apart along the front and back direction, each supporting assembly (120) is provided with two rotating rollers (121), the two rotating rollers (121) are spaced apart along the left and right directions, the distance between the two rotating rollers (121) is less than the diameter of the pipe (400), and the first supporting space, the second supporting space and the third supporting space are formed by the plurality of rotating rollers (121).

4. The dual station inside polishing apparatus of claim 3, wherein: At least two adjacent supporting parts have the first supporting space, at least two adjacent supporting parts have the second supporting space, at least two adjacent supporting parts have the third supporting space, and the number of the straight rods (350) is consistent with the sum of the number of the first supporting space and the second supporting space.

5. The dual station inside polishing apparatus of claim 4, wherein: The supporting assembly (120) forming the first supporting space and the second supporting space is defined as a machining supporting assembly, the number of the power wheels (221) is consistent with the number of the machining supporting assembly, and the moving paths of the power wheels (221) intersect with the corresponding pipe (400).

6. The dual station inside polishing apparatus of claim 5, wherein: All the power wheels (221) form a plurality of driving assemblies (220), each of the driving assemblies (220) is provided with a plurality of power wheels (221) arranged at intervals in the left-right direction, and all the power wheels (221) of each of the driving assemblies (220) are commonly connected with a transmission pair (240).

7. The dual station inside polishing apparatus of claim 6, wherein: The driving frame (200) is connected with a plurality of lifting devices (210), and each of the lifting devices (210) is connected with the driving assembly (220).

8. The dual station inside polishing apparatus of claim 1, wherein: The polishing piece (351) is detachably connected to the straight rod (350).

9. The dual station inside polishing apparatus of claim 1, wherein: Each of the polishing modules (300) further comprises a free trolley (330) located between the moving trolley (320) and the supporting module (100), the free trolley (330) is slidingly connected to the corresponding base (310) in the front-rear direction, the free trolley (330) is provided with an intermediate bracket (331) for supporting the straight rod (350), and the free trolley (330) and the corresponding moving trolley (320) are connected with a flexible traction strip (332).

10. A pipe material characterized by: The pipe (400) is machined by the double-station inner polishing equipment according to any one of claims 1 to 9.

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