Internal polishing device for small-caliber steel pipe

Abstract

The utility model relates to the technical field of steel pipe machining, and discloses an inner polishing device for a small-caliber steel pipe, which solves the problem that the inner walls of steel pipes with different inner diameters cannot be polished at present, and comprises a base, a polishing mechanism is arranged at the top of the base, and an adjusting mechanism is arranged on the polishing mechanism. The polishing mechanism comprises a first motor located above the base, a first rotating shaft is fixedly installed on the first motor, a guide column is fixedly installed in the first rotating shaft, and the outer side of the guide column is movably sleeved with a guide block; according to the polishing device for the inner wall of the steel pipe, rotation of the polishing wheel is facilitated through cooperation between the second motor and the second rotating shaft, revolution of the polishing wheel is facilitated through cooperation between the first motor and the first rotating shaft, then the inner wall of the steel pipe can be polished, and sliding of the guide block along the guide column is facilitated through cooperation between the first air cylinder, the mounting block and the movable rod; and therefore, the inner walls of the steel pipes with different inner diameters can be conveniently polished.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe processing, in particular to an internal polishing device for a small-caliber steel pipe. Background Art

[0002] Steel pipe is a steel material with a hollow cross-section, whose length is much larger than its diameter or circumference. It is divided into round, square, rectangular and special-shaped steel pipes according to the cross-sectional shape. During the processing of small-diameter steel pipes, due to various factors, its inner wall will have many defects such as scratches, burrs or impurities, which affect the use effect of the steel pipe. Therefore, it is necessary to grind and polish the inner wall of the steel pipe; according to the patent document with the authorization announcement number of CN213197079U and the name of "a steel pipe inner surface polishing device", its steel pipe fixing mechanism, clamping mechanism and limiting mechanism fix the steel pipe on the bottom plate. Driven by the driving mechanism, the bottom plate slides back and forth on the slide rail, and the polishing roller slidably connected to the inner wall of the steel pipe repeatedly polishes the inner wall of the steel pipe, which improves the work efficiency, safety and reliability during polishing; but there are still the following defects:

[0003] The inner wall of the steel pipe is polished by a polishing roller, and the diameter of the polishing roller is fixed, so that only the steel pipe with a single inner diameter can be polished, and the inner walls of steel pipes with different inner diameters cannot be polished. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a small-diameter steel pipe internal polishing device, which effectively solves the problem that the inner wall of steel pipes with different inner diameters cannot be polished at present.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a small-caliber steel pipe internal polishing device, comprising a base, a polishing mechanism is installed on the top of the base, and an adjustment mechanism is installed on the polishing mechanism;

[0006] The polishing mechanism includes a motor 1 located above the base, a rotating shaft 1 is fixedly installed on the motor 1, a guide column is fixedly installed inside the rotating shaft 1, a guide block is movably sleeved on the outer side of the guide column, a limiting block is fixedly installed on the inner side of the guide block, a limiting groove is provided on the outer side of the guide column, the limiting block is slidably connected to the limiting groove, a mounting seat is fixedly installed on the side of the guide block away from the motor 1, a motor 2 is fixedly installed on the side of the mounting seat away from the guide block, a rotating shaft 2 is fixedly installed on the motor 2, and a polishing wheel located on the outer side of the rotating shaft 1 is fixedly installed on the end of the rotating shaft 2 away from the motor 2.

[0007] Preferably, an inner plate is fixedly installed inside the rotating shaft 1, and the inner plate is located between the motor 1 and the guide column. A cylinder 1 is fixedly installed on the side of the inner plate close to the guide column, and a mounting block is fixedly installed on the end of the cylinder 1 away from the inner plate. The top of the mounting block is rotatably connected to a movable rod, and the end of the movable rod away from the mounting block is rotatably connected to the guide block.

[0008] Preferably, a limiting rod is fixedly connected to the top of the mounting block, and an end of the limiting rod away from the mounting block passes through the inner plate and is fixedly mounted with a side block.

[0009] Preferably, the adjustment mechanism includes a vertical plate fixed to the top of the base, a bent rod fixedly connected between the top of the vertical plate and the top of the base, a slide plate movably sleeved on the outer side of the bent rod, a U-shaped round rod fixedly installed on the top of the slide plate, a lifting plate movably sleeved on the outer side of the U-shaped round rod, a motor 1 is fixed to the outer side of the lifting plate, a sleeve plate located directly above the lifting plate is fixedly sleeved on the outer side of the U-shaped round rod, and a cylinder 2 is fixedly installed between the sleeve plate and the lifting plate.

[0010] Preferably, a sleeve block is fixedly sleeved on the outer side of the bending rod, a motor three is fixedly installed on the side of the vertical plate close to the sleeve block, a screw rod is fixedly installed on the motor three, one end of the screw rod away from the motor three is rotatably connected to the sleeve block, and the slide plate is threadedly sleeved on the outer side of the screw rod.

[0011] Preferably, an L-shaped plate is fixedly installed on the side of the lifting plate close to motor one, and a through hole is provided on the L-shaped plate. Rotating shaft one passes through the through hole, and the inner diameter of the through hole is greater than the outer diameter of rotating shaft one. An annular groove is provided on the inner side of the through hole, and balls are installed at equal angles in the annular groove, and each ball fits against the outer side of rotating shaft one.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model facilitates the self-rotation of the polishing wheel through the cooperation between the second motor and the second rotating shaft, and facilitates the revolution of the polishing wheel through the cooperation between the first motor and the first rotating shaft, thereby polishing the inner wall of the steel pipe, and facilitates the sliding of the guide block along the guide column through the cooperation between the first cylinder, the mounting block and the movable rod, thereby enabling the polishing wheel to be raised and lowered, thereby facilitating the polishing of the inner wall of the steel pipe with different inner diameters;

[0014] (2) The new device facilitates the stable rotation of the rotating shaft 1 through the cooperation between the through hole and the L-shaped plate and the ball bearing, and can adjust the height of the polishing wheel through the cooperation between the cylinder 2 and the lifting plate and the U-shaped round rod. The cooperation between the motor 3 and the screw rod and the slide plate and the bent rod facilitates the horizontal movement of the U-shaped round rod and the lifting plate, thereby facilitating the polishing wheel to extend into the interior of the steel pipe to polish its inner wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0016] In the attached picture:

[0017] Figure 1 This is a schematic diagram of the structure of the small-diameter steel pipe internal polishing device of the utility model;

[0018] Figure 2 This is a schematic diagram of the polishing mechanism structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the inner plate structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0021] In the figure: 1, base; 2, polishing mechanism; 201, motor 1; 202, shaft 1; 203, inner plate; 204, polishing wheel; 205, cylinder 1; 206, mounting block; 207, limit groove; 208, guide block; 209, mounting seat; 2010, shaft 2; 2011, motor 2; 2012, guide column; 2013, limit block; 2014, movable rod; 2 015, limit rod; 2016, side block; 3, adjustment mechanism; 301, vertical plate; 302, lifting plate; 303, U-shaped round rod; 304, sleeve plate; 305, cylinder two; 306, annular groove; 307, through hole; 308, ball bearing; 309, sleeve block; 3010, screw rod; 3011, bending rod; 3012, L-shaped plate; 3013, slide plate; 3014, motor three. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Embodiment 1, by Figure 1 The utility model comprises a base 1 , a polishing mechanism 2 is installed on the top of the base 1 , and an adjusting mechanism 3 is installed on the polishing mechanism 2 .

[0024] Specifically, by Figure 2-3The polishing mechanism 2 includes a motor 201 located above the base 1, a rotating shaft 202 is fixedly mounted on the motor 201, a guide column 2012 is fixedly mounted inside the rotating shaft 202, a guide block 208 is movably sleeved on the outer side of the guide column 2012, a limiting block 2013 is fixedly mounted on the inner side of the guide block 208, a limiting groove 207 is provided on the outer side of the guide column 2012, the limiting block 2013 is slidably connected to the limiting groove 207, a mounting seat 209 is fixedly mounted on the side of the guide block 208 away from the motor 1 201, a motor 2011 is fixedly mounted on the side of the mounting seat 209 away from the guide block 208, a rotating shaft 2010 is fixedly mounted on the motor 211, and the rotating shaft 2010 is away from the motor 20 A polishing wheel 204 located outside the rotating shaft 202 is fixedly installed at one end of 11, an inner plate 203 is fixedly installed inside the rotating shaft 202, the inner plate 203 is located between the motor 201 and the guide column 2012, a cylinder 205 is fixedly installed on the side of the inner plate 203 close to the guide column 2012, a mounting block 206 is fixedly installed on the end of the cylinder 205 away from the inner plate 203, a movable rod 2014 is rotatably connected to the top of the mounting block 206, and the end of the movable rod 2014 away from the mounting block 206 is rotatably connected to the guide block 208, a limiting rod 2015 is fixedly connected to the top of the mounting block 206, and the end of the limiting rod 2015 away from the mounting block 206 passes through the inner plate 203 and is fixedly installed with a side block 2016;

[0025] When in use, first start motor 2011 to drive the rotation of shaft 2010, and drive the polishing wheel 204 to rotate to polish the inner wall of the steel pipe, then start motor 1 201 to drive shaft 1 202 to rotate, and drive the polishing wheel 204 to rotate in a circle to polish the inner wall of the steel pipe in all directions. When it is necessary to polish the inner wall of the steel pipe with different inner diameters, then start cylinder 1 205 to drive the mounting block 206 to move horizontally, and through the cooperation between the limit rod 2015 and the inner plate 203, the stability of the mounting block 206 during movement is ensured, and then the guide block 208 is driven to slide along the guide column 2012 through the movable rod 2014, and the limit block 2013 slides in the limit groove 207 to ensure the stability of the guide block 208 during movement, and then drives the mounting seat 209 to move longitudinally, and finally adjusts the height of the polishing wheel 204 to suit steel pipes with different inner diameters.

[0026] Specifically, by Figure 4The adjusting mechanism 3 includes a vertical plate 301 fixed to the top of the base 1, a bent rod 3011 is fixedly connected between the top of the vertical plate 301 and the top of the base 1, a slide plate 3013 is movably sleeved on the outer side of the bent rod 3011, a U-shaped round rod 303 is fixedly installed on the top of the slide plate 3013, a lifting plate 302 is movably sleeved on the outer side of the U-shaped round rod 303, a motor 201 is fixed to the outer side of the lifting plate 302, a sleeve plate 304 located directly above the lifting plate 302 is fixedly sleeved on the outer side of the U-shaped round rod 303, a cylinder 205 is fixedly installed between the sleeve plate 304 and the lifting plate 302, a sleeve block 309 is fixedly sleeved on the outer side of the bent rod 3011, and the vertical plate 301 is close to the sleeve block 3 A motor 3014 is fixedly installed on one side of 09, a screw rod 3010 is fixedly installed on the motor 3014, and one end of the screw rod 3010 away from the motor 3014 is rotatably connected to the sleeve block 309, and the slide plate 3013 is threadedly sleeved on the outer side of the screw rod 3010, and an L-shaped plate 3012 is fixedly installed on the side of the lifting plate 302 close to the motor 1 201, and a through hole 307 is provided on the L-shaped plate 3012, and the rotating shaft 1 202 passes through the through hole 307, and the inner diameter of the through hole 307 is greater than the outer diameter of the rotating shaft 1 202, and an annular groove 306 is provided on the inner side of the through hole 307, and balls 308 are installed at equal angles in the annular groove 306, and each ball 308 is in contact with the outer side of the rotating shaft 1 202;

[0027] When in use, first start cylinder 2 305 to drive the lifting plate 302 to slide along the U-shaped round rod 303, and drive motor 1 201 and shaft 1 202 to move until shaft 1 202 and the steel pipe are at the same height. When motor 1 201 is started, it drives shaft 1 202 to rotate, and a number of balls 308 are arranged between the L-shaped plate 3012 and shaft 1 202 to support shaft 1 202 and ensure the stability of shaft 1 202 during rotation. Then start motor 3014 to drive the rotation of the screw rod 3010 and drive the slide plate 3013 to slide along the bending rod 3011. At this time, the U-shaped round rod 303 and the lifting plate 302 move horizontally accordingly, and finally the polishing wheel 204 extends into the steel pipe for polishing.

Claims

1. A small-caliber steel pipe internal polishing device, comprising a base (1), characterized in that: A polishing mechanism (2) is installed on the top of the base (1), and an adjustment mechanism (3) is installed on the polishing mechanism (2); The polishing mechanism (2) comprises a motor (201) located above the base (1); a rotating shaft (202) is fixedly mounted on the motor (201); a guide column (2012) is fixedly mounted inside the rotating shaft (202); a guide block (208) is movably sleeved on the outer side of the guide column (2012); a limit block (2013) is fixedly mounted on the inner side of the guide block (208); a limit groove (207) is provided on the outer side of the guide column (2012); and the limit block (2013) A mounting seat (209) is fixedly mounted on the side of the guide block (208) away from the motor one (201) in a sliding connection with the limiting groove (207); a motor two (2011) is fixedly mounted on the side of the mounting seat (209) away from the guide block (208); a rotating shaft two (2010) is fixedly mounted on the motor two (2011); and a polishing wheel (204) located outside the rotating shaft one (202) is fixedly mounted on the end of the rotating shaft two (2010) away from the motor two (2011).

2. The small-diameter steel pipe internal polishing device according to claim 1 is characterized in that: An inner plate (203) is fixedly installed inside the rotating shaft (202), and the inner plate (203) is located between the motor (201) and the guide column (2012). A cylinder (205) is fixedly installed on the side of the inner plate (203) close to the guide column (2012), and a mounting block (206) is fixedly installed on the end of the cylinder (205) away from the inner plate (203). A movable rod (2014) is rotatably connected to the top of the mounting block (206), and the end of the movable rod (2014) away from the mounting block (206) is rotatably connected to the guide block (208).

3. A small-diameter steel pipe internal polishing device according to claim 2, characterized in that: The top of the mounting block (206) is fixedly connected to a limiting rod (2015); one end of the limiting rod (2015) away from the mounting block (206) passes through the inner plate (203) and is fixedly mounted with a side block (2016).

4. The small-diameter steel pipe internal polishing device according to claim 1, characterized in that: The adjustment mechanism (3) comprises a vertical plate (301) fixed to the top of the base (1); a bent rod (3011) is fixedly connected between the top of the vertical plate (301) and the top of the base (1); a slide plate (3013) is movably sleeved on the outer side of the bent rod (3011); a U-shaped round rod (303) is fixedly installed on the top of the slide plate (3013); a lifting plate (302) is movably sleeved on the outer side of the U-shaped round rod (303); a motor 1 (201) is fixed to the outer side of the lifting plate (302); a sleeve plate (304) located directly above the lifting plate (302) is fixedly sleeved on the outer side of the U-shaped round rod (303); and a cylinder 2 (305) is fixedly installed between the sleeve plate (304) and the lifting plate (302).

5. The small-diameter steel pipe internal polishing device according to claim 4, characterized in that: The outer side of the bending rod (3011) is fixedly sleeved with a sleeve block (309); a motor three (3014) is fixedly installed on the side of the vertical plate (301) close to the sleeve block (309); a screw rod (3010) is fixedly installed on the motor three (3014); one end of the screw rod (3010) away from the motor three (3014) is rotatably connected to the sleeve block (309); and the slide plate (3013) is threadedly sleeved on the outer side of the screw rod (3010).

6. The small-diameter steel pipe internal polishing device according to claim 4, characterized in that: An L-shaped plate (3012) is fixedly installed on one side of the lifting plate (302) close to the motor one (201), and a through hole (307) is provided on the L-shaped plate (3012). The rotating shaft one (202) passes through the through hole (307), and the inner diameter of the through hole (307) is greater than the outer diameter of the rotating shaft one (202). An annular groove (306) is provided on the inner side of the through hole (307), and balls (308) are installed at equal angles in the annular groove (306), and each ball (308) is in contact with the outer side of the rotating shaft one (202).

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