Metal pipe surface polishing machine

Abstract

This application discloses a metal pipe surface polishing machine, including a polishing seat, a feeding seat, and a directional feeding mechanism. The feeding seat has a first end and a second end opposite to each other. The polishing seat is directly opposite the feeding seat at the second end. A polishing motor is fixedly mounted on the top of the polishing seat. The output shaft of the polishing motor is directly opposite the feeding seat and a polishing wheel is fixedly mounted thereon. The directional feeding mechanism includes a feeding motor, a rotary motor, and a guide structure. The feeding motor is fixedly mounted at the first end. A lead screw is coaxially connected to the shaft of the feeding motor and is directly opposite the polishing seat. A mounting plate is provided at the bottom of the rotary motor. A lead screw slider that is threadedly engaged with the lead screw is provided at the bottom of the mounting plate. The guide structure is located between the mounting plate and the feeding seat so that the mounting plate can be driven by the feeding motor to orient itself toward or away from the polishing seat. A three-jaw chuck is connected to the output end of the rotary motor. The center of the three-jaw chuck is directly opposite the polishing surface of the polishing wheel, thereby enabling rapid polishing of metal pipes with high polishing quality.

Description

Technical Field

[0001] This utility model relates to the field of polishing equipment technology, and in particular to a metal pipe surface polishing machine. Background Technology

[0002] Metal pipe fittings generally refer to hollow, long, round steel strips, primarily used in industrial pipelines for petroleum, chemical, light industry, and machinery, as well as mechanical structural components. After metal pipe fittings are cast, or for reused old metal pipe fittings, their surfaces often have casting residues or impurities, resulting in a rough surface quality. Before being put back into use, they generally need to undergo surface polishing to improve their appearance and enhance their corrosion resistance.

[0003] In current technology, many small and medium-sized enterprises or enterprises with a small production volume of metal pipe fittings basically use existing polishing machines for grinding and polishing. One method is to fix the metal pipe fittings and manually use the polishing machine to polish the surface of the metal pipe fittings; another method is to fix the polishing machine and manually move the metal pipe fittings to polish the surface. However, both of these methods have the problems of high labor intensity, low surface treatment efficiency, and difficulty in guaranteeing the surface polishing quality of the metal pipe fittings. Utility Model Content

[0004] This application provides a metal pipe surface polishing machine, which can effectively reduce labor intensity, improve the surface treatment efficiency of metal pipes, and ensure the surface polishing quality of metal pipes.

[0005] This application provides a metal pipe surface polishing machine, including a polishing seat, a feeding seat and a directional feeding mechanism. The feeding seat has a first end and a second end opposite to each other. The polishing seat is directly opposite the feeding seat at the second end. A polishing motor is fixedly mounted on the top of the polishing seat. The output shaft of the polishing motor is directly opposite the feeding seat and a polishing wheel is fixedly sleeved on it. The directional feeding mechanism includes a feeding motor, a rotary motor, and a guide structure. The feeding motor is fixed at the first end, and a lead screw is coaxially connected to the rotating shaft of the feeding motor. The lead screw faces the polishing seat. The bottom of the rotary motor is provided with a mounting plate, and the bottom of the mounting plate is provided with a lead screw slider that is threadedly engaged with the lead screw. The guide structure is located between the mounting plate and the feeding seat so that the mounting plate can be driven by the feeding motor to orient itself toward or away from the polishing seat. The output end of the rotary motor is connected to a three-jaw chuck for clamping and fixing metal pipes. The center of the three-jaw chuck faces the polishing surface of the polishing wheel.

[0006] In one possible implementation, the three-jaw chuck is a three-jaw self-centering chuck.

[0007] In one possible implementation, the polishing seat has a limiting channel between the polishing wheel and the feeding seat, and a limiting wheel assembly is provided in the limiting channel. The limiting wheel assembly includes three limiting wheels arranged in an equilateral triangle in the longitudinal direction. The three limiting wheels consist of a first limiting wheel located at the top and two second limiting wheels located at the bottom. The center of each limiting wheel has a limiting groove so that the metal pipe is limited by the cooperation between the limiting grooves on the first limiting wheel and the second limiting wheel during feeding.

[0008] In one possible implementation, the limiting groove is a V-shaped groove.

[0009] In one possible implementation, the guide structure includes guide rails horizontally and symmetrically distributed on both sides of the lead screw, and a slider that slides with the guide rails and is fixedly disposed at the bottom of the mounting plate.

[0010] In one possible implementation, the feed seat has a bearing housing near the second end, and the lead screw is rotatably mounted in the bearing housing.

[0011] In one possible implementation, the top of the polishing seat is provided with roller sets on both sides of the polishing wheel in the metal tube feeding direction, and the bottom of the roller sets is provided with support frames. The roller sets include two horizontally symmetrically distributed rotating members to rotatably support the metal tube.

[0012] In one possible implementation, the rotating element is a rotating roller.

[0013] In one possible implementation, the support frame includes two support plates symmetrically distributed in the vertical direction, the rotating member is rotatably disposed between the two support plates, and the top of the support plate is provided with a support groove at the middle position to cooperate with the metal pipe.

[0014] Beneficial effects: Compared with the prior art, the metal pipe surface polishing machine provided in this application can automatically feed the metal pipe while fixing the polishing motor through the feeding motor, and quickly rotate the metal pipe through the three-jaw chuck with the rotating motor. This can quickly complete the surface polishing of the metal pipe, which can not only improve the surface treatment efficiency of the metal pipe, but also ensure the surface polishing quality of the metal pipe.

[0015] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description

[0016] Figure 1 A schematic diagram of the metal pipe surface polishing machine of this application is shown.

[0017] Figure 2 A partial structural schematic diagram of the metal pipe surface polishing machine of this application is shown.

[0018] Figure 3 A side view of the structure in which the limiting channel and the metal pipe fit together is shown in this application.

[0019] Figure 4 A three-dimensional structural schematic diagram of the roller assembly in this application is shown. Detailed Implementation

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0021] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0022] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0023] refer to Figures 1 to 4 This application provides a metal pipe surface polishing machine, including a polishing seat 10, a feeding seat 20, and a directional feeding mechanism. The feeding seat 20 has a first end 21 and a second end 22 facing each other. The polishing seat 10 is positioned so that the second end 22 is directly opposite the feeding seat 20. A polishing motor 11 is fixedly mounted on the top of the polishing seat 10, and the output shaft of the polishing motor 11 is directly opposite the feeding seat 20. A polishing wheel 12 is fixedly mounted on the polishing motor 11, thereby driving the polishing wheel 12 to rotate rapidly and polish the surface of the metal pipe. The directional feeding mechanism includes a feeding motor 31, a rotary motor 32, and a guide structure. The feeding motor 31 is fixed at the first end, and a lead screw 33 is coaxially connected to the rotating shaft of the feeding motor 31. The lead screw 33 faces the polishing seat 10. The bottom of the rotary motor 32 is provided with a mounting plate 34, and the bottom of the mounting plate 34 is provided with a lead screw slider (not shown in the figure) that is threadedly engaged with the lead screw 33. The guide structure is located between the mounting plate 34 and the feeding seat 20, so that the mounting plate 34 can be driven by the feeding motor 31 to orient itself toward or away from the polishing seat 10. Thus, when the feeding motor 31 rotates, the threaded engagement between the lead screw 33 and the lead screw slider, as well as the guiding effect of the guide structure, will cause the mounting plate 34 to drive the rotary motor 32 to orient itself toward or away from the polishing seat 10, thereby completing the feeding of the metal pipe 40 or the resetting of the rotary motor 32. That is, the rotational motion of the lead screw 33 is converted into the directional linear motion of the mounting plate 34. The output end of the rotary motor 32 is connected to a three-jaw chuck 35 for clamping and fixing the metal pipe fitting 40, and the center of the three-jaw chuck 35 is directly opposite the polishing surface of the polishing wheel 12. Preferably, the three-jaw chuck 35 is a three-jaw self-centering chuck, which facilitates the clamping of the metal pipe fitting 40. A three-jaw chuck is a component that clamps the workpiece by the radial movement of three movable jaws evenly distributed on the chuck body. Generally, the three-jaw chuck is directly threaded to the motor shaft, or connected through a transition plate. Both of these connection methods are existing technologies.

[0024] In simple terms, during the polishing operation, the feed motor 31 is first started, driving the mounting plate 34 and the rotary motor 32 away from the polishing seat 10 via the lead screw 33. Then, the polishing motor 11 is started, causing the polishing wheel 12 to rotate rapidly. Next, the metal tube 40 to be polished is clamped in the three-jaw chuck 35, and the rotary motor 32 is controlled to rotate. Finally, the feed motor 31 is controlled to rotate in the opposite direction, gradually bringing the metal tube 40 closer to the polishing wheel 12. Under the rapid rotation of the polishing wheel 12 and the rotary motor 32, the polishing process on the surface of the metal tube 40 is gradually completed. Controlling the motor to rotate forward and backward is a mature existing technology; its working principle will not be elaborated upon here.

[0025] In order to increase the height of the rotary motor 32, one or more adapter plates can be added between the rotary motor 32 and the mounting plate 34. The adapter plates are fixed on the top of the mounting plate 34, and the rotary motor 32 is mounted on the top of the adapter plates.

[0026] One end of the metal tube 40 is clamped and fixed on the three-jaw chuck 40, while the other end is suspended in the air. This may affect the surface polishing quality of the metal tube 40 during polishing. Therefore, more preferably, the polishing seat 10 is provided with a limiting channel 51 between the polishing wheel 12 and the feed seat 20, and a limiting wheel group is provided in the limiting channel 51. The limiting wheel group includes three limiting wheels 52 arranged in an equilateral triangle in the longitudinal direction. The three limiting wheels 52 consist of a first limiting wheel 521 located at the top and two second limiting wheels 522 located at the bottom. The center of each limiting wheel 52 is provided with a limiting groove 501, so that when feeding, the metal tube 40 is limited by the cooperation between the limiting grooves 501 on the first limiting wheel 521 and the second limiting wheels 522, preventing the metal tube 40 from shifting near the polishing wheel 12, thereby ensuring the overall polishing quality of the metal tube 40.

[0027] In addition, in order to achieve more precise control of the feeding motor 31, positioning sensors can also be installed on the mounting plate 34 and the feeding seat 20. When the mounting plate 34 moves to the end away from the feeding motor 31, a positioning signal is triggered, which forces the feeding motor 31 to stop driving the mounting plate 34 to move. This can prevent the three-jaw chuck 35 and the polishing wheel 12 from contacting and being damaged.

[0028] In one embodiment, the limiting groove 501 is a V-shaped groove, which not only plays a good limiting role, but also, due to the design of the V-shaped groove, can minimize the contact area between the limiting groove 501 and the metal pipe 40, thereby reducing the movement resistance of the metal pipe 40.

[0029] In one embodiment, the guide structure includes guide rails 36 horizontally symmetrically distributed on both sides of the lead screw 33, and a slider 37 that slides with the guide rails 36 and is fixedly disposed at the bottom of the mounting plate 34.

[0030] In one embodiment, the feed seat 20 is equipped with a bearing seat 23 near the second end 22, and the lead screw 33 is installed in the bearing seat 23 in a rotatable manner. Thus, the bearing seat 23 can also limit the lead screw slider and prevent the lead screw slider and the mounting plate 34 from getting too close to the polishing wheel 12.

[0031] In one embodiment, the polishing seat 10 has roller assemblies 13 on both sides of the polishing wheel 12 in the feeding direction of the metal tube 40, and a support frame 14 is provided at the bottom of the roller assemblies 13. Each roller assembly 13 includes two horizontally symmetrically distributed rotating members 15 to rotatably support the metal tube 40 and ensure its movement stability. More preferably, the rotating members 15 are rotating rollers, which not only provide rotational support but also create a larger rotational support area in the feeding direction of the metal tube, resulting in better support stability.

[0032] In one embodiment, the support frame 14 includes two support plates 141 symmetrically distributed in the vertical direction. The rotating member 15 is rotatably disposed between the two support plates 141, and the top of the support plate 141 is provided with a support groove 101 at the middle position to cooperate with the metal pipe 40, thereby avoiding the metal pipe 40.

[0033] It should be noted that the terms "first" and "second" used in this application are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.

[0034] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A metal pipe surface polishing machine, characterized in that, It includes a polishing seat, a feeding seat, and a directional feeding mechanism. The feeding seat has a first end and a second end opposite to each other. The polishing seat is directly opposite the feeding seat at the second end. A polishing motor is fixedly mounted on the top of the polishing seat. The output shaft of the polishing motor is directly opposite the feeding seat and a polishing wheel is fixedly mounted on it. The directional feeding mechanism includes a feeding motor, a rotary motor, and a guide structure. The feeding motor is fixed at the first end, and a lead screw is coaxially connected to the rotating shaft of the feeding motor. The lead screw faces the polishing seat. The bottom of the rotary motor is provided with a mounting plate, and the bottom of the mounting plate is provided with a lead screw slider that is threadedly engaged with the lead screw. The guide structure is located between the mounting plate and the feeding seat so that the mounting plate can be driven by the feeding motor to orient itself toward or away from the polishing seat. The output end of the rotary motor is connected to a three-jaw chuck for clamping and fixing metal pipes. The center of the three-jaw chuck faces the polishing surface of the polishing wheel.

2. The metal pipe surface polishing machine as described in claim 1, characterized in that, The polishing seat has a limiting channel between the polishing wheel and the feeding seat. The limiting channel has a limiting wheel assembly. The limiting wheel assembly includes three limiting wheels arranged in an equilateral triangle in the longitudinal direction. The three limiting wheels consist of a first limiting wheel located at the top and two second limiting wheels located at the bottom. The center of each limiting wheel has a limiting groove so that the metal pipe can be limited during feeding by the cooperation between the limiting grooves on the first and second limiting wheels.

3. The metal pipe surface polishing machine as described in claim 2, characterized in that, The limiting groove is a V-shaped groove.

4. The metal pipe surface polishing machine as described in claim 1, characterized in that, The three-jaw chuck is a three-jaw self-centering chuck.

5. The metal pipe surface polishing machine as described in claim 1, characterized in that, The guide structure includes guide rails that are horizontally symmetrically distributed on both sides of the lead screw, and a slider that slides with the guide rails and is fixedly mounted on the bottom of the mounting plate.

6. The metal pipe surface polishing machine as described in claim 5, characterized in that, The feed seat has a bearing housing installed near the second end, and the lead screw is installed in the bearing housing in a rotatable manner.

7. The metal pipe surface polishing machine as described in claim 1, characterized in that, The polishing seat has roller sets on the top of the polishing wheel on both sides of the metal tube feeding direction. The bottom of the roller sets is provided with a support frame. The roller sets include two horizontally symmetrically distributed rotating parts to rotatably support the metal tube.

8. The metal pipe surface polishing machine as described in claim 7, characterized in that, The rotating component is a rotating roller.

9. The metal pipe surface polishing machine as described in claim 7 or 8, characterized in that, The support frame includes two support plates symmetrically distributed in the vertical direction. The rotating component is rotatably disposed between the two support plates, and the top of the support plate is provided with a support groove that cooperates with the metal pipe at the middle position.

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