Steel pipe outer circle surface polishing device

Abstract

The steel pipe outer circle surface polishing device comprises a machining table, a containing groove with an upward opening is formed in the machining table, a three-jaw chuck is installed on the left side of the containing groove, a sliding plate is further connected in the containing groove in a left-right sliding mode, and a mounting plate is arranged on the left side face of the sliding plate. A lower pressing shaft is rotationally connected to the left side surface of the mounting plate; a supporting plate is further arranged in the containing groove, the upper side face of the supporting plate is connected with two supporting shafts distributed front and back through a fixing plate, the left end of the steel pipe is fixed through a three-jaw chuck, the steel pipe is pressed on the bearing shaft through a downward pressing shaft, and the fixing method is easy to operate and high in reliability. A worker can perform quick clamping after adjusting the heights of the lower pressing shaft and the bearing shaft in advance; the polishing belt is used for polishing the steel pipe, compared with a polishing wheel, the polishing belt can have a larger contact area with the steel pipe, and the polishing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe grinding, in particular to a device for polishing the outer cylindrical surface of a steel pipe. Background Art

[0002] The surface of the steel pipe needs to be ground and polished to improve product quality.

[0003] The steel pipe needs to be clamped and fixed before polishing, such as a polishing device for stainless steel round pipes with insertion and clamping disclosed in application No. 201911074468.4. In this device, the left connecting column is inserted into the steel pipe, and then the steel pipe is abutted against the right limit column to fix the steel pipe, and then polishing is performed. However, in this clamping scheme, after the polishing is completed, the staff needs to remove the right limit column first, and then remove the steel pipe, which is more cumbersome. In addition, the clamping scheme requires the use of left and right limit columns that match the size of the steel pipe. If the size of the steel pipe changes, the left and right limit columns need to be replaced. The scope of application is relatively narrow, so it needs to be improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a steel pipe outer cylindrical surface polishing device to solve the problem that in the prior steel pipe polishing device, clamping the steel pipe is relatively cumbersome and it is difficult to clamp steel pipes of different diameters.

[0005] The utility model provides the following technical solution: a polishing device for the outer cylindrical surface of a steel pipe, comprising a processing table, a receiving groove with an upward opening is provided in the processing table, a clamping assembly is provided in the receiving groove, and a polishing plate capable of left-right and up-down movement is installed on the upper side of the processing table through a positioning assembly, and a polishing assembly for polishing the steel pipe located in the receiving groove and clamped by the clamping assembly is provided in the polishing plate;

[0006] The clamping assembly includes a three-jaw chuck mounted on the left side of the receiving groove, a rotating motor for driving the three-jaw chuck to rotate is installed on the left side of the processing table, a sliding plate is also slidably connected to the receiving groove, a mounting plate is provided on the left side of the sliding plate, and a lower pressure shaft is rotatably connected to the left side of the mounting plate;

[0007] A support plate is also provided in the accommodating groove, and the upper side of the support plate is connected to two support shafts distributed front and back through a fixed plate. A clamping device is provided in the processing table for controlling the left and right positions of the sliding plate so that the lower pressure shaft can press the steel pipe to be polished onto the support shaft.

[0008] Preferably, the lower pressing shaft is covered with a rubber roller, and the left end of the rubber roller is tapered.

[0009] Preferably, the support plate is slidably connected up and down in the receiving groove, and a No. 1 threaded shaft which is vertically arranged and threadedly connected to the support plate is installed in the receiving groove.

[0010] Preferably, two support plates are provided, distributed on the left and right.

[0011] Preferably, the clamping device includes a No. 2 threaded shaft rotatably connected to the right side surface of the accommodating groove, the No. 2 threaded shaft extends to the right side of the processing table, and a handle is provided at the right end of the No. 2 threaded shaft, and a No. 1 sleeve threadedly connected to the No. 2 threaded shaft is fixedly provided on the right side surface of the sliding plate.

[0012] Preferably, a slide groove is provided in the left side surface of the sliding plate, the mounting plate is slidably connected in the slide groove, and a No. 3 threaded shaft which is vertically arranged and threadedly connected to the mounting plate is rotatably connected in the sliding plate.

[0013] Preferably, the polishing assembly includes a polishing belt installed in the sliding plate, a clamping groove is provided in the lower side of the sliding plate, and two mounting shafts distributed front and back are rotatably connected in the clamping groove, the polishing belt is wound around the two mounting shafts, and a polishing motor for driving the mounting shafts to rotate is provided on the sliding plate.

[0014] Preferably, the positioning assembly includes a bracket slidably connected to the processing table, two No. 4 threaded shafts threadedly connected to the bracket are transversely mounted on the processing table, the two No. 4 threaded shafts are connected by a synchronous belt, and a translation motor for driving the No. 4 threaded shaft to rotate is provided on the processing table;

[0015] The polishing plate is slidably connected in the bracket up and down, and a lifting motor is installed on the bracket. A No. 2 sleeve is provided at the upper end of the polishing plate, and a No. 5 threaded shaft extending from the lifting motor is threadedly connected with the No. 2 sleeve.

[0016] The utility model provides a device for polishing the outer cylindrical surface of a steel pipe, which has the following beneficial effects:

[0017] The utility model is used for polishing the outer surface of the steel pipe, and the clamping scheme of the steel pipe of the utility model is: the left end of the steel pipe is fixed by a three-claw chuck, and the steel pipe is pressed on the bearing shaft by a lower pressing shaft. This fixing method is simple to operate and has high reliability. The staff can quickly clamp after pre-adjusting the height of the lower pressing shaft and the bearing shaft.

[0018] The utility model grinds the steel pipe by means of the polishing belt. Compared with the polishing wheel, the polishing belt can have a larger contact area with the steel pipe, thereby increasing the polishing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure in the utility model;

[0021] Figure 3 It is a top view schematic diagram of the utility model;

[0022] Figure 4 It is a schematic diagram of the appearance of the support plate in the utility model.

[0023] In the figure:

[0024] 11. Processing table; 12. Receiving groove; 13. Polishing plate; 14. Three-jaw chuck; 15. Sliding plate; 16. Mounting plate; 17. Pressing shaft; 18. Support plate; 19. Support shaft; 20. No. 2 threaded shaft; 21. No. 3 threaded shaft; 22. Polishing belt; 23. Clamping groove; 24. Polishing motor; 25. Bracket; 26. No. 4 threaded shaft; 27. Translation motor; 28. Lifting motor; 29. ​​No. 1 threaded shaft; 101. Clamping assembly; 102. Clamping device; 103. Positioning assembly. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Reference Figure 1-Figure 4 According to an embodiment of the utility model, a device for polishing the outer cylindrical surface of a steel pipe includes a processing table 11, wherein the processing table 11 is provided with a receiving groove 12 with an opening facing upward, wherein the receiving groove 12 is provided with a clamping assembly 101, wherein the clamping assembly 101 is used to clamp the steel pipe so as to polish its outer surface, and a polishing plate 13 capable of moving left and right is installed on the upper side of the processing table 11 through a translation assembly 103, wherein the polishing plate 13 is provided with a polishing assembly for polishing the steel pipe located in the receiving groove 12 and clamped by the clamping assembly 101.

[0030] In this embodiment, the clamping assembly 101 includes a three-jaw chuck 14 installed on the left side of the receiving groove 12, and a rotating motor for driving the chuck 14 to rotate is also installed on the left side of the processing table 11.

[0031] The left end of the steel pipe can be fixed outside the three-jaw chuck 14. In order to fix the right end of the steel pipe, a support plate 18 is also provided in the accommodating groove 12. The upper side of the support plate 18 is connected with two support shafts 19 distributed front and back through a fixing plate. The steel pipe whose left end is fixed outside the chuck 14 can be placed on the support shaft 19. The support shaft 19 can rotate to avoid excessive friction between the steel pipe and the support shaft 19 when the chuck 14 rotates. A sliding plate 15 is also slidably connected to the left and right in the accommodating groove 12. A mounting plate 16 is provided on the left side of the sliding plate 15, and a lower pressure shaft 17 is rotatably connected to the left side of the mounting plate 16. A clamping device 102 is provided in the processing table 11 for controlling the left and right positions of the sliding plate 15 so that the lower pressure shaft 17 can press the steel pipe to be polished onto the support shaft 19.

[0032] Specific clamping process of steel pipe:

[0033] First, the staff places the steel pipe on the support shaft 19 and pushes the steel pipe to the left. At this time, the steel pipe can be sleeved outside the clamping claws in the three-jaw chuck 14 and is fixed by the three-jaw chuck 14. Then the staff drives the sliding plate 15 to the left through the clamping device 102 until the lower pressure shaft 17 extends to the right end of the steel pipe. At this time, the lower pressure shaft 17 can be pressed on the steel pipe and press it on the load-bearing shaft 19, so that the steel pipe can be fixed and supported.

[0034] In order to allow the lower pressing shaft 17 to smoothly enter the steel pipe and contact the inner wall of the steel pipe when moving leftwards while avoiding scratches, the lower pressing shaft 17 is covered with a rubber roller, and the left end of the rubber roller is tapered.

[0035] The clamping device 102 includes a No. 2 threaded shaft 20 rotatably connected to the right side of the accommodating groove 12, the No. 2 threaded shaft 20 extends to the right side of the processing table 11, and a handle is provided at the right end of the No. 2 threaded shaft 20, and a No. 1 sleeve threadedly connected to the No. 2 threaded shaft 20 is fixedly provided on the right side of the sliding plate 15, and the staff can rotate the handle to control the sliding plate 15 to move left and right.

[0036] In the second embodiment of the machine, in order to be able to clamp and fix steel pipes of different diameters, the support plate 18 is slidably connected to the accommodating groove 12 up and down, and the up and down positions of the mounting plate 16 and the lower pressure shaft 17 can be adjusted: the accommodating groove 12 is equipped with a No. 1 threaded shaft 29 which is vertically arranged and threadedly connected to the support plate 18, a slide groove is provided in the left side surface of the sliding plate 15, the mounting plate 16 is slidably connected to the slide groove up and down, and a No. 3 threaded shaft 21 which is vertically arranged and threadedly connected to the mounting plate 16 is rotatably connected in the sliding plate 15, the staff can rotate the No. 1 threaded shaft 29 to adjust the up and down positions of the support plate 18 and the support shaft 19, so that the support shaft 19 can support steel pipes of different inner and outer diameters, and the staff can swing the No. 3 threaded shaft 21 to adjust the up and down positions of the mounting plate 16 and the lower pressure shaft 17, so that the lower pressure shaft 17 can press and fix steel pipes of different sizes and diameters.

[0037] In addition, for the purpose of stable clamping, two support plates 18 are provided, which are distributed on the left and right.

[0038] In this embodiment, the polishing assembly includes a polishing belt 22 installed in the sliding plate 15, a clamping groove 23 is provided in the lower side of the sliding plate 15, and two installation shafts distributed front and back are rotatably connected in the clamping groove 23, the polishing belt 22 is wound around the two installation shafts, and a polishing motor 24 is provided on the sliding plate 15 for driving the installation shaft to rotate.

[0039] The translation assembly 103 includes a bracket 25 slidably connected to the processing table 11, and two No. 4 threaded shafts 26 threadedly connected to the bracket 25 are transversely installed in the processing table 11. The two threaded shafts 26 are connected by a synchronous belt, and a translation motor 27 for driving the No. 4 threaded shaft 26 to rotate is provided on the processing table 11;

[0040] The polishing plate 13 is connected to the bracket 25 by sliding up and down, and a lifting motor 28 is installed on the bracket 25. A No. 2 sleeve is provided at the upper end of the polishing plate 13, and a No. 5 threaded shaft extending from the lifting motor 28 is threadedly connected to the No. 2 sleeve. When the translation motor 27 is energized, it will drive the No. 4 threaded shaft 26 to rotate, thereby causing the bracket 25 and the polishing plate 13 to move left and right. When the lifting motor 28 is energized, it can control the lifting and lowering of the polishing plate 13. When the polishing plate 13 descends and sticks to the clamped steel pipe, the polishing motor 24 located therein can drive the polishing belt 22 to rotate and polish the outer surface of the steel pipe clamped by the clamping assembly 101.

[0041] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A device for polishing the outer cylindrical surface of a steel pipe, comprising a processing table (11), characterized in that: The processing table (11) is provided with a receiving groove (12) with an opening facing upward, the receiving groove (12) is provided with a clamping assembly (101), and a polishing plate (13) capable of left-right and up-down movement is mounted on the upper side of the processing table (11) via a positioning assembly (103), the polishing plate (13) being provided with a polishing assembly for polishing a steel pipe located in the receiving groove (12) and clamped by the clamping assembly (101); The clamping assembly (101) comprises a three-jaw chuck (14) mounted on the left side of the receiving groove (12); a rotary motor for driving the three-jaw chuck (14) to rotate is mounted on the left side of the processing table (11); a sliding plate (15) is also slidably connected to the inside of the receiving groove (12); a mounting plate (16) is provided on the left side of the sliding plate (15); and a lower pressing shaft (17) is rotatably connected to the left side of the mounting plate (16); A support plate (18) is also provided in the receiving groove (12), and the upper side of the support plate (18) is connected to two support shafts (19) distributed front and rearwardly via a fixing plate. A clamping device (102) is provided in the processing table (11) for controlling the left and right positions of the sliding plate (15) so that the lower pressing shaft (17) can press the steel pipe to be polished onto the support shaft (19).

2. The device for polishing the outer cylindrical surface of a steel pipe according to claim 1, characterized in that: The lower pressing shaft (17) is covered with a rubber roller, and the left end of the rubber roller is conical.

3. The device for polishing the outer cylindrical surface of a steel pipe according to claim 1, characterized in that: The support plate (18) is slidably connected in the receiving groove (12) up and down, and a first threaded shaft (29) is installed in the receiving groove (12) and is vertically arranged and threadedly connected to the support plate (18).

4. A steel pipe outer surface polishing device according to claim 3, characterized in that: The support plates (18) are provided with two ones distributed on the left and right.

5. The device for polishing the outer cylindrical surface of a steel pipe according to claim 1, characterized in that: The clamping device (102) comprises a No. 2 threaded shaft (20) rotatably connected to the right side surface of the accommodating groove (12), the No. 2 threaded shaft (20) extending to the right side of the processing table (11), and a handle is provided at the right end of the No. 2 threaded shaft (20), and a No. 1 sleeve threadably connected to the No. 2 threaded shaft (20) is fixedly provided on the right side surface of the sliding plate (15).

6. A steel pipe outer surface polishing device according to claim 1 or 5, characterized in that: A slide groove is provided in the left side surface of the sliding plate (15), and the mounting plate (16) is slidably connected in the slide groove up and down. A third threaded shaft (21) is vertically arranged and threadedly connected to the mounting plate (16) and is rotatably connected in the sliding plate (15).

7. A steel pipe outer surface polishing device according to claim 6, characterized in that: The polishing assembly comprises a polishing belt (22) installed in the sliding plate (15), a clamping groove (23) is provided in the lower side of the sliding plate (15), and two installation shafts distributed front and back are rotatably connected in the clamping groove (23), the polishing belt (22) is wound between the two installation shafts, and a polishing motor (24) for driving the installation shaft to rotate is provided on the sliding plate (15).

8. A steel pipe outer surface polishing device according to claim 1 or 7, characterized in that: The positioning assembly (103) comprises a bracket (25) slidably connected to the processing table (11) in the left and right directions, two No. 4 threaded shafts (26) threadedly connected to the bracket (25) are transversely mounted on the processing table (11), the two No. 4 threaded shafts (26) are connected via a synchronous belt, and a translation motor (27) is provided on the processing table (11) for driving the No. 4 threaded shafts (26) to rotate; The polishing plate (13) is slidably connected in the bracket (25) up and down, and a lifting motor (28) is installed on the bracket (25). A No. 2 sleeve is provided at the upper end of the polishing plate (13), and a No. 5 threaded shaft extending from the lifting motor (28) is threadedly connected to the No. 2 sleeve.

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