Polishing and positioning device in steel pipe

Abstract

The utility model relates to the technical field of steel pipe inner polishing, and discloses a steel pipe inner polishing positioning device, which solves the problem of low polishing efficiency caused by the fact that an operator grasps a steel pipe by hand at present, and comprises a base, a supporting mechanism is arranged at the bottom of the base, and an extruding mechanism is arranged above the supporting mechanism. The extrusion mechanism comprises an L-shaped frame fixed to the top of the base, a lifting plate is arranged on the inner side of the L-shaped frame, and an air cylinder is fixedly installed between the top of the lifting plate and the L-shaped frame. According to the steel pipe lifting device, the two supporting rollers are arranged to support a steel pipe, descending of the lifting plate is facilitated through cooperation between an air cylinder and the lifting plate and cooperation between a first U-shaped round rod and an ejector rod, and through cooperation between a rotating plate and a movable rod and cooperation between a sliding block and a side rod, a limiting roller can abut against the steel pipe under the action of the elastic force of a spring; and meanwhile, the arc-shaped pressing plate descends to extrude the steel pipe, so that the steel pipe is quickly fixed, and the polishing efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe internal polishing, in particular to a steel pipe internal polishing positioning device. Background Art

[0002] Stainless steel pipe is a hollow long round steel. Due to various factors during the production process, small iron blocks and other impurities that affect the quality of the stainless steel pipe may appear inside the pipe body. Therefore, people often polish the inside of the stainless steel pipe after production.

[0003] Under the demand of market conditions, the current process of polishing the inner wall of steel pipes is mostly to install a polishing wheel on the output shaft of a motor. The operator grasps the steel pipe with his hands and presses the inner surface of the steel pipe against the polishing wheel for polishing. This kind of manual labor has high labor intensity, low work efficiency, low product quality, and low safety and reliability. 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 steel pipe internal polishing positioning device, which effectively solves the problem of low polishing efficiency caused by the operator grasping the steel pipe with his hands.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel pipe internal polishing positioning device, comprising a base, a supporting mechanism is installed at the bottom of the base, and an extrusion mechanism is provided above the supporting mechanism;

[0006] The extrusion mechanism includes an L-shaped frame fixed to the top of the base, a lifting plate is provided on the inner side of the L-shaped frame, a cylinder is fixedly installed between the top of the lifting plate and the L-shaped frame, an arc-shaped pressure plate is fixedly installed at the bottom of the lifting plate, the bottom of the lifting plate is symmetrically connected to two rotating plates, the arc-shaped pressure plate is located between the two rotating plates, the bottoms of the two rotating plates are both rotatably connected to limiting rollers, and the bottom end surface heights of the two limiting rollers are both lower than the bottom end surface height of the arc-shaped pressure plate.

[0007] Preferably, a U-shaped round rod is fixedly installed on the top of the lifting plate, the U-shaped round rod passes through the L-shaped frame and is movably connected to the L-shaped frame, a top rod is fixedly installed on the top of the L-shaped frame, a top block is fixedly installed on the top of the top rod, and the U-shaped round rod is movably sleeved on the outside of the top rod.

[0008] Preferably, two side rods are symmetrically fixedly connected to the outer side of the lifting plate, and the ends of the two side rods away from the lifting plate are fixedly connected to side blocks. Slide blocks are movably sleeved on the outer sides of the two side rods, and springs are fixedly connected between the two slide blocks and the lifting plate. The two springs are respectively sleeved on the outer sides of the two side rods, and the bottoms of the two slide blocks are rotatably connected to movable rods, and the bottom ends of the two movable rods are rotatably connected to the two rotating plates.

[0009] Preferably, the supporting mechanism includes two U-shaped round rods symmetrically fixed on the top of the base, and two slides are symmetrically arranged directly above the base. The two slides are movably connected to the outer sides of the two U-shaped round rods, and a U-shaped frame is fixedly installed on the side where the two slides are close to each other, and support rollers are rotatably connected in the two U-shaped frames.

[0010] Preferably, two vertical plates are symmetrically fixedly installed on the top of the base, and the two vertical plates are fixedly sleeved on the outer sides of the two U-shaped round rods. A guide rod is fixedly connected between the two vertical plates, and two guide plates are symmetrically and movably sleeved on the outer sides of the guide rods. The two guide plates are respectively fixed to the bottoms of the two slides.

[0011] Preferably, a bidirectional screw rod is provided between the guide rod and the base, one end of the bidirectional screw rod is rotatably connected to one of the vertical plates, the other end of the bidirectional screw rod is fixedly mounted with a motor, the motor is fixed to the other vertical plate, two nuts are connected to the outer thread of the bidirectional screw rod, and the two guide plates are respectively fixed to the top of the two nuts.

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

[0013] The utility model supports the steel pipe by arranging two supporting rollers, and facilitates the lowering of the lifting plate through the cooperation between the cylinder and the lifting plate, the U-shaped round rod and the top rod, and the cooperation between the rotating plate and the movable rod, the slider and the side rod, and then under the action of the spring elastic force, the limiting roller can abut against the steel pipe, and at the same time, the arc-shaped pressing plate can be lowered to squeeze the steel pipe, so that the steel pipe can be quickly fixed and the polishing efficiency can be improved;

[0014] The new type facilitates the sliding of the two guide plates along the guide rods through the cooperation between the motor, the bidirectional lead screw and the nut, and facilitates the movement of the two support rollers through the cooperation between the slide plate, the U-shaped round rod and the U-shaped frame, thereby facilitating the adjustment of the distance between the two support rollers according to the diameter of the steel pipe. 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 internal polishing positioning device for a steel pipe of the utility model;

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

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

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

[0021] In the figure: 1. base; 2. extrusion mechanism; 201. L-shaped frame; 202. ejector rod; 203. ejector block; 204. U-shaped round rod 1; 205. cylinder; 206. lifting plate; 207. spring; 208. slider; 209. arc pressure plate; 2010. rotating plate; 2011. limiting roller; 2012. movable rod; 2013. side block; 2014. side rod; 3. supporting mechanism; 301. U-shaped round rod 2; 302. slide plate; 303. guide rod; 304. supporting roller; 305. U-shaped frame; 306. motor; 307. nut; 308. bidirectional screw rod; 309. guide plate; 3010. vertical plate. 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 supporting mechanism 3 is installed at the bottom of the base 1 , and an extrusion mechanism 2 is arranged above the supporting mechanism 3 .

[0024] Specifically, by Figure 2-3It is given that the extrusion mechanism 2 includes an L-shaped frame 201 fixed to the top of the base 1, a lifting plate 206 is provided on the inner side of the L-shaped frame 201, a cylinder 205 is fixedly installed between the top of the lifting plate 206 and the L-shaped frame 201, an arc-shaped pressing plate 209 is fixedly installed at the bottom of the lifting plate 206, and the bottom of the lifting plate 206 is symmetrically connected to two rotating plates 2010, and the arc-shaped pressing plate 209 is located between the two rotating plates 2010. The bottoms of the two rotating plates 2010 are both rotatably connected to the limiting rollers 2011, and the bottom end surfaces of the two limiting rollers 2011 are lower than the bottom end surface height of the arc-shaped pressing plate 209. A U-shaped round rod 204 is fixedly installed on the top of the lifting plate 206, and the U-shaped round rod 204 passes through the L-shaped frame 201 and moves with the L-shaped frame 201. The top of the L-shaped frame 201 is fixedly installed with a top rod 202, and the top of the top rod 202 is fixedly installed with a top block 203. The U-shaped round rod 204 is movably sleeved on the outer side of the top rod 202. The outer side of the lifting plate 206 is symmetrically fixedly connected with two side rods 2014, and the ends of the two side rods 2014 away from the lifting plate 206 are fixedly connected with side blocks 2013. The outer sides of the two side rods 2014 are movably sleeved with sliders 208. Springs 207 are fixedly connected between the two sliders 208 and the lifting plate 206. The two springs 207 are respectively sleeved on the outer sides of the two side rods 2014. The bottoms of the two sliders 208 are rotatably connected with movable rods 2012, and the bottom ends of the two movable rods 2012 are rotatably connected with the two rotating plates 210 respectively.

[0025] When in use, first start the cylinder 205 to drive the lifting plate 206 to move downward, and at the same time, the U-shaped round rod 204 slides downward along the top rod 202 to ensure the stability of the lifting plate 206 when it descends. When the two limiting rollers 2011 are in contact with the steel pipe, the lifting plate 206 continues to move downward. At this time, the two rotating plates 2010 rotate, and the two sliders 208 are driven to slide along the two side rods 2014 through the two movable rods 2012. At the same time, the two springs 207 are stretched, and under the action of the elastic force of the two springs 207, the two limiting rollers 2011 are tightly fitted with the outer wall of the steel pipe until the arc pressure plate 209 is in contact with the steel pipe. Finally, the steel pipe is quickly fixed to improve the polishing efficiency.

[0026] Specifically, by Figure 4The support mechanism 3 includes two U-shaped round rods 301 symmetrically fixed on the top of the base 1, two slide plates 302 are symmetrically arranged directly above the base 1, and the two slide plates 302 are movably sleeved on the outside of the two U-shaped round rods 301, and a U-shaped frame 305 is fixedly installed on the side of the two slide plates 302 close to each other, and a support roller 304 is rotatably connected in the two U-shaped frames 305, and two vertical plates 3010 are symmetrically fixedly installed on the top of the base 1, and the two vertical plates 3010 are fixedly sleeved on the outside of the two U-shaped round rods 301, and a A guide rod 303, the outer side of the guide rod 303 is symmetrically sleeved with two guide plates 309, the two guide plates 309 are respectively fixed to the bottom of the two slide plates 302, a bidirectional screw rod 308 is provided between the guide rod 303 and the base 1, one end of the bidirectional screw rod 308 is rotatably connected to one of the vertical plates 3010, the other end of the bidirectional screw rod 308 is fixedly installed with a motor 306, the motor 306 is fixed to the other vertical plate 3010, the outer side of the bidirectional screw rod 308 is threadedly sleeved with two screw nuts 307, and the two guide plates 309 are respectively fixed to the tops of the two screw nuts 307;

[0027] When in use, first set two support rollers 304 to support the steel pipe. When it is necessary to support steel pipes of different diameters, start the motor 306 to drive the rotation of the bidirectional screw rod 308. The two guide plates 309 are driven to slide along the guide rod 303 through the two nuts 307, and then the two slide plates 302 are driven to slide along the two U-shaped round rods 301. At this time, the two U-shaped frames 305 move accordingly. Finally, the distance between the two support rollers 304 is adjusted according to the diameter of the steel pipe.

Claims

1. A steel pipe internal polishing positioning device, comprising a base (1), characterized in that: A supporting mechanism (3) is installed at the bottom of the base (1), and a squeezing mechanism (2) is provided above the supporting mechanism (3); The extrusion mechanism (2) comprises an L-shaped frame (201) fixed to the top of the base (1); a lifting plate (206) is provided on the inner side of the L-shaped frame (201); a cylinder (205) is fixedly installed between the top of the lifting plate (206) and the L-shaped frame (201); an arc-shaped pressing plate (209) is fixedly installed at the bottom of the lifting plate (206); the bottom of the lifting plate (206) is symmetrically rotatably connected to two rotating plates (2010); the arc-shaped pressing plate (209) is located between the two rotating plates (2010); the bottoms of the two rotating plates (2010) are both rotatably connected to limit rollers (211); the bottom end surfaces of the two limit rollers (2011) are lower than the bottom end surface height of the arc-shaped pressing plate (209).

2. A steel pipe internal polishing positioning device according to claim 1, characterized in that: A U-shaped round rod (204) is fixedly mounted on the top of the lifting plate (206); the U-shaped round rod (204) penetrates the L-shaped frame (201) and is movably connected to the L-shaped frame (201); a top rod (202) is fixedly mounted on the top of the L-shaped frame (201); a top block (203) is fixedly mounted on the top of the top rod (202); and the U-shaped round rod (204) is movably sleeved on the outer side of the top rod (202).

3. The steel pipe internal polishing positioning device according to claim 1, characterized in that: The outer side of the lifting plate (206) is symmetrically fixedly connected to two side rods (2014); one end of the two side rods (2014) away from the lifting plate (206) is fixedly connected to a side block (2013); the outer sides of the two side rods (2014) are movably sleeved with sliders (208); springs (207) are fixedly connected between the two sliders (208) and the lifting plate (206); the two springs (207) are respectively sleeved on the outer sides of the two side rods (2014); the bottoms of the two sliders (208) are rotatably connected to movable rods (212); and the bottom ends of the two movable rods (212) are rotatably connected to the two rotating plates (2010).

4. A steel pipe internal polishing positioning device according to claim 1, characterized in that: The support mechanism (3) comprises two U-shaped round rods (301) symmetrically fixed to the top of the base (1); two slide plates (302) are symmetrically arranged directly above the base (1); the two slide plates (302) are movably sleeved on the outside of the two U-shaped round rods (301); a U-shaped frame (305) is fixedly installed on the side of the two slide plates (302) close to each other; and support rollers (304) are rotatably connected inside the two U-shaped frames (305).

5. The steel pipe internal polishing positioning device according to claim 1, characterized in that: Two vertical plates (3010) are symmetrically fixedly installed on the top of the base (1); the two vertical plates (3010) are fixedly sleeved on the outside of the two U-shaped round rods (301); a guide rod (303) is fixedly connected between the two vertical plates (3010); two guide plates (309) are symmetrically and movably sleeved on the outside of the guide rod (303); the two guide plates (309) are respectively fixed to the bottom of the two slide plates (302).

6. A steel pipe internal polishing positioning device according to claim 5, characterized in that: A bidirectional screw rod (308) is provided between the guide rod (303) and the base (1); one end of the bidirectional screw rod (308) is rotatably connected to one of the vertical plates (3010); a motor (306) is fixedly mounted on the other end of the bidirectional screw rod (308); the motor (306) is fixed to the other vertical plate (3010); two screw nuts (307) are sleeved on the outer side of the bidirectional screw rod (308); and two guide plates (309) are respectively fixed to the tops of the two screw nuts (307).

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