Square tube surface treatment device

Abstract

This utility model discloses a surface treatment device for rectangular tubes, including a U-shaped base. Third grinding plates for grinding both sides of the rectangular tube are inserted into the inner walls of both sides of the left side of the U-shaped base. An adjusting component is provided on the upper left side of the U-shaped base to adjust the distance between the two sets of third grinding plates according to the width of the rectangular tube. An elastic pushing component is provided on the lower left side of the fixed rod to push the corresponding side end of the square plate upwards, thereby causing the second grinding plate to move downwards. Through the adjusting component and the elastic pushing component, the distance between the third grinding plates is adjusted by a bidirectional screw, which can be dynamically adjusted according to the width of the rectangular tube, enabling grinding of rectangular tubes of different widths. Simultaneously, the elastic pushing component allows the second grinding plate to adapt to changes in the height of the rectangular tube, thus enabling grinding of rectangular tubes of different sizes, improving the applicability of the device. Furthermore, the spring ensures uniform grinding pressure at the top, avoiding uneven grinding or failure to contact due to dimensional errors.

Description

Technical Field

[0001] This utility model relates to the technical field of surface treatment devices for square and rectangular tubes, specifically a surface treatment device for square and rectangular tubes. Background Technology

[0002] Square and rectangular tubes are a type of steel pipe with and without equal or unequal side lengths. They are made from steel strips through a process of rolling. Generally, the steel strips are unpacked, flattened, rolled, and welded to form a round tube, which is then rolled into a square tube and cut to the required length.

[0003] Currently, Chinese Patent No. CN220740451U discloses a surface treatment device for rectangular tubes, including a base. A rectangular tube is mounted on the upper end of the base. An electro-hydraulic push rod is located at one end of the rectangular tube on the top of the base. A push plate is located at one end of the electro-hydraulic push rod. A rectangular grinding groove is located at the other end of the rectangular tube on the top of the base. A first grinding plate A and a first grinding plate B are respectively located at the top and bottom of the inner side of the rectangular grinding groove. A second grinding plate A and a second grinding plate B are respectively located on both sides inside the rectangular grinding groove. This novel surface treatment device for rectangular tubes utilizes an electro-hydraulic push rod to push the rectangular tube, offering good practicality and suitability for widespread use.

[0004] The above-mentioned problems still exist in use. The first grinding plate A and the second grinding plate B in the rectangular grinding groove are fixed. Since the cross-sectional dimensions of square and rectangular tubes are diverse, the grinding plates with fixed spacing cannot be adapted to square and rectangular tubes of different specifications, which may lead to uneven grinding pressure, inconsistent surface treatment effect, or even failure to process non-standard sized tubes. Utility Model Content

[0005] The purpose of this invention is to provide a surface treatment device for square and rectangular tubes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A surface treatment device for rectangular tubes includes a U-shaped base. Third grinding plates for grinding the sides of the rectangular tube are inserted into the inner walls of both sides of the left side of the U-shaped base. An adjusting component is provided above the left side of the U-shaped base to adjust the distance between the two sets of third grinding plates according to the width of the rectangular tube. A first grinding plate for grinding the bottom surface of the rectangular tube is embedded in the inner wall of the middle part of the U-shaped base. A second grinding plate for grinding the top surface of the rectangular tube is provided above the middle part of the U-shaped base. A square plate is detachably connected to the right side of the second grinding plate via a detachable component. A fixing rod is rotatably inserted into the middle of the front side of the square plate. The two ends of the fixing rod are respectively fixedly connected to the top of both sides of the middle part of the U-shaped base. An elastic pushing component is provided on the lower left side of the fixing rod to push the corresponding side end of the square plate upwards, thereby causing the second grinding plate to move downwards.

[0008] As a preferred technical solution, the adjusting component includes a bidirectional lead screw disposed on the upper left side of the U-shaped seat. Bearing seats are rotatably sleeved at both ends of the bidirectional lead screw. The bottoms of the two sets of bearing seats are fixedly connected to the tops of both ends of the U-shaped seat. Nut seats are threadedly connected to both ends of the bidirectional lead screw. The bottoms of the two sets of nut seats are fixedly connected to the tops of the third grinding plate on the corresponding side. One end of the bidirectional lead screw passes through the bearing seat on the corresponding side and is fixedly connected to a turntable. The other end of the bidirectional lead screw is provided with a fixing component for fixing the bidirectional lead screw to prevent the bidirectional lead screw from rotating.

[0009] As a preferred technical solution, the fastener includes a fixed ring fixedly connected to one side surface of the fixed U-shaped seat and a fixed ring fixedly connected to the corresponding position of the outer circular surface of the other end of the bidirectional lead screw. The top of the fixed ring is threaded with a fixed bolt, and the end of the fixed bolt is threaded downward through the fixed ring and abuts against the surface of the bidirectional lead screw.

[0010] As a preferred technical solution, guide rods are fixedly connected to the upper and lower parts of the outer sides of the two sets of third grinding plates, and the ends of the two sets of guide rods on both sides penetrate the inner wall of the corresponding side U-shaped seat.

[0011] As a preferred technical solution, the elastic pushing assembly includes a receiving plate fixedly connected to the bottom left side of the fixing rod, a spring fixedly connected to the top of the receiving plate, a connecting screw fixedly connected to the top of the receiving plate and inside the spring, a limiting hole opened at the top of one end of the square plate, the end of the connecting screw passing through the limiting hole upward and threadedly connected to a limiting nut, and the elastic force of the spring acting on the square plate, so that the other end of the second grinding plate maintains downward pressure.

[0012] As a preferred technical solution, the detachable component includes a connecting plate that is fixedly connected to the other end of the square plate. Connecting bolts are inserted into the top two sides of the connecting plate, and the ends of the two sets of connecting bolts pass downward through the connecting plate and are threaded to the top of the second grinding plate.

[0013] As a preferred technical solution, a mounting plate is fixedly connected to the left side opening of the U-shaped seat, and an electric push rod is fixedly connected to the left end of the mounting plate. The telescopic end of the electric push rod passes through the mounting plate and is fixedly connected to a push plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, through the setting of the adjusting component and the elastic pushing component, allows the bidirectional screw to adjust the spacing of the third grinding plate, which can be dynamically adjusted according to the width of the square and rectangular tube, so as to achieve grinding of square and rectangular tubes of different widths. At the same time, the elastic pushing component enables the second grinding plate to adapt to the height change of the square and rectangular tube, thereby enabling grinding of square and rectangular tubes of different sizes, improving the applicability of the device. In addition, the spring can ensure uniform grinding pressure at the top, avoiding the problem of uneven grinding or failure to contact due to dimensional errors.

[0016] 2. This utility model uses a limiting nut to adjust the spring compression, flexibly controlling the grinding pressure and avoiding damage to the pipe due to excessive pressure or incomplete grinding due to insufficient pressure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a square and rectangular tube surface treatment device according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the U-shaped seat of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation position of the spring of this utility model.

[0020] In the picture:

[0021] 100. U-shaped seat; 101. Mounting plate; 102. Electric push rod; 103. First grinding plate; 104. Push plate;

[0022] 200. Fixing rod; 201. Square plate; 202. Connecting plate; 203. Connecting bolt; 204. Second grinding plate; 205. Support plate; 206. Spring; 207. Limiting hole; 208. Limiting nut; 209. Connecting screw;

[0023] 300. Double-acting lead screw; 301. Third grinding plate; 302. Guide rod; 303. Turntable; 304. Bearing seat; 305. Fixing ring; 306. Fixing bolt; 307. Nut seat. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3 This embodiment provides a surface treatment device for rectangular tubes, including a U-shaped base 100. Third grinding plates 301 for grinding the sides of the rectangular tube are inserted into the inner walls of both sides of the left side of the U-shaped base. An adjusting component is provided above the left side of the U-shaped base 100 to adjust the distance between the two sets of third grinding plates 301 according to the width of the rectangular tube. A first grinding plate 103 for grinding the bottom surface of the rectangular tube is embedded in the inner wall of the middle part of the U-shaped base 100. A second grinding plate 204 for grinding the top surface of the rectangular tube is provided above the middle part of the U-shaped base 100. A square plate 201 is detachably connected to the right side of the second grinding plate 204 via a detachable component. A fixing rod 200 is rotatably inserted into the middle of the front side of the square plate 201. The two ends of the fixing rod 200 are respectively fixedly connected to the top of both sides of the middle part of the U-shaped base 100. An elastic pushing component is provided on the lower left side of the fixing rod 200 to push the corresponding side end of the square plate 201 upwards, thereby driving the second grinding plate 204 downwards.

[0026] The adjusting component includes a bidirectional lead screw 300 positioned above the left side of the U-shaped base 100. Bearing seats 304 are rotatably mounted on both ends of the bidirectional lead screw 300. The bottoms of the two sets of bearing seats 304 are fixedly connected to the tops of both ends of the U-shaped base 100. Nut seats 307 are threadedly connected to both ends of the bidirectional lead screw 300. The bottoms of the two sets of nut seats 307 are fixedly connected to the tops of the corresponding side third grinding plate 301. One end of the bidirectional lead screw 300 passes through the corresponding side bearing seat 304 and is fixedly connected to a turntable 303. The other end of the bidirectional lead screw 300 is provided with a fixing... The bidirectional lead screw 300 is a fixed component that prevents the bidirectional lead screw 300 from rotating. Through the setting of the adjusting component and the elastic pushing component, the bidirectional lead screw 300 adjusts the spacing of the third grinding plate 301, which can be dynamically adjusted according to the width of the rectangular tube, so as to achieve grinding of rectangular tubes of different widths. At the same time, the elastic pushing component enables the second grinding plate 204 to adapt to the change of the height of the rectangular tube, so as to be able to grind rectangular tubes of different sizes, improving the applicability of the device. Furthermore, the spring 206 can ensure uniform grinding pressure at the top, avoiding problems such as uneven grinding or failure to contact due to dimensional errors.

[0027] Among them, the first grinding plate 103, the second grinding plate 204, and the third grinding plate 301 are well known technical means to those skilled in the art. For their specific working principles and structures, please refer to the first grinding plate 103A in a square and rectangular tube surface treatment device with publication number CN220740451U. The rest will not be described in detail here.

[0028] The fastener includes a fixing ring 305 fixedly connected to one side surface of the U-shaped seat 100 and correspondingly fixed to the outer circular surface of the other end of the bidirectional lead screw 300. The top of the fixing ring 305 is threaded with a fixing bolt 306. The end of the fixing bolt 306 is threaded downward through the fixing ring 305 and abuts against the surface of the bidirectional lead screw 300. Through the fastener, the fixing bolt 306 abuts against the bidirectional lead screw 300 and locks the position by friction, ensuring that the spacing of the third grinding plate 301 remains stable when the electric push rod 102 pushes the rectangular tube, thus avoiding grinding deviation.

[0029] Among them, the upper and lower parts of the outer sides of the two sets of third grinding plates 301 are respectively fixedly connected with guide rods 302. The ends of the two sets of guide rods 302 on both sides penetrate the inner wall of the corresponding side U-shaped seat 100. Through the setting of the guide rods 302, the guide rods 302 penetrate the inner wall of the U-shaped seat 100, restricting the third grinding plate 301 to move only along the axial direction, ensuring that the adjustment process is smooth and stable, and improving the reliability of the equipment.

[0030] The elastic pushing component includes a receiving plate 205 fixedly connected to the bottom left side of the fixed rod 200. A spring 206 is fixedly connected to the top of the receiving plate 205. A connecting screw 209 is fixedly connected to the top of the receiving plate 205 and inside the spring 206. A limiting hole 207 is opened at the top of one end of the square plate 201. The end of the connecting screw 209 passes through the limiting hole 207 upward and is threadedly connected to a limiting nut 208. The elastic force of the spring 206 acts on the square plate 201, so that the other end of the second grinding plate 204 maintains downward pressure. By setting the limiting nut 208, the limiting nut 208 can adjust the compression of the spring 206, flexibly control the grinding pressure, and avoid excessive pressure damaging the pipe or insufficient pressure causing incomplete grinding.

[0031] The detachable component includes a connecting plate 202 that is fixedly connected to the other end of the square plate 201. Connecting bolts 203 are inserted into the top two sides of the connecting plate 202 respectively. The ends of the two sets of connecting bolts 203 pass through the connecting plate 202 downward and are threaded to the top of the second grinding plate 204. With the setting of the detachable component, the connecting bolts 203 can be quickly removed and the second grinding plate 204 can be installed without complicated tools, shortening equipment downtime and reducing maintenance costs.

[0032] The U-shaped seat 100 has a mounting plate 101 fixedly connected to its left side opening. An electric push rod 102 is fixedly connected to the left end of the mounting plate 101. The telescopic end of the electric push rod 102 passes through the mounting plate 101 and is fixedly connected to a push plate 104. With the electric push rod 102, after the width and height of the rectangular tube are matched, the tube is pushed at a uniform speed by the electric push rod 102 to achieve automated grinding, improve efficiency and stability, and effectively avoid the grinding quality fluctuation caused by uneven force when pushing manually. It is especially suitable for the continuous processing of long rectangular tubes.

[0033] Working principle;

[0034] First, based on the width of the square or rectangular tube to be ground, rotate the turntable 303 at the end of the double-acting lead screw 300. The turntable 303 drives the double-acting lead screw 300 to rotate, thereby causing the two sets of nut seats 307 to move inward simultaneously until the width is adjusted to match the square or rectangular tube. Then, tighten the fixing bolt 306 so that the end of the fixing bolt 306 passes downward through the fixing ring 305 and abuts against the end of the double-acting lead screw 300, thereby preventing the double-acting lead screw 300 from rotating back.

[0035] Then, the rectangular tube is placed into the U-shaped seat 100, and the end of the rectangular tube is made to contact the push plate 104. The electric push rod 102 is turned on, and the push plate 104 slowly pushes the rectangular tube to the right. The top right side of the rectangular tube contacts the second grinding plate 204, and the spring 206 provided on the left side of the square plate 201 pushes the corresponding side end of the square plate 201 upward, thereby pushing the right side end of the square plate 201 downward, thereby increasing the grinding force on the top of the rectangular tube.

[0036] When grinding rectangular tubes with a relatively high height, the limiting nut 208 is rotated downward to push the left end of the square plate 201 downward, thereby moving the right end of the square plate 201 upward. At the same time, the height of the second grinding plate 204 is also moved upward, thus accommodating rectangular tubes of different heights. Simultaneously, the limiting nut 208 is moved downward to compress the spring 206, increasing the pressure and thus improving the grinding force on the rectangular tube.

[0037] As the end of the electric push rod 102 moves to the right, the bottom of the rectangular tube is polished by the first polishing plate 103. At the same time, the right end of the square plate 201 abuts against the top of the rectangular tube, thereby ensuring the contact force between the rectangular tube and the first polishing plate 103. When it moves between the two sets of third polishing plates 301, the two sets of third polishing plates 301 polish the two sides of the rectangular tube.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A square tube surface treatment apparatus, characterized by comprising: The device includes a U-shaped base (100), on which third grinding plates (301) for grinding both sides of a rectangular tube are inserted into the inner walls on both sides of the left side. An adjusting member is provided above the left side of the U-shaped base (100) for adjusting the distance between the two sets of third grinding plates (301) according to the width of the rectangular tube. A first grinding plate (103) for grinding the bottom surface of the rectangular tube is embedded in the inner wall of the middle part of the U-shaped base (100). A grinding plate for grinding the top surface of the rectangular tube is provided above the middle part of the U-shaped base (100). A second polishing plate (204) is used for polishing. A square plate (201) is detachably connected to the right side of the second polishing plate (204). A fixing rod (200) is rotatably inserted into the middle of the front side of the square plate (201). The two ends of the fixing rod (200) are respectively fixedly connected to the top of the middle two sides of the U-shaped seat (100). An elastic pushing component is provided on the left side of the lower part of the fixing rod (200) to push the corresponding side end of the square plate (201) upward, thereby driving the second polishing plate (204) to move downward.

2. A square tube surfacing apparatus as claimed in claim 1 wherein: The adjusting component includes a bidirectional lead screw (300) disposed above the left side of the U-shaped seat (100). The two ends of the bidirectional lead screw (300) are respectively rotatably fitted with bearing seats (304). The bottoms of the two sets of bearing seats (304) are respectively fixedly connected to the tops of the two ends of the U-shaped seat (100). The two ends of the bidirectional lead screw (300) are respectively threadedly connected with nut seats (307). The bottoms of the two sets of nut seats (307) are respectively fixedly connected to the tops of the corresponding side third grinding plate (301). One end of the bidirectional lead screw (300) passes through the corresponding side bearing seat (304) and is fixedly connected to a turntable (303). The other end of the bidirectional lead screw (300) is provided with a fixing component for fixing the bidirectional lead screw (300) to prevent the bidirectional lead screw (300) from rotating.

3. A square tube surfacing apparatus as claimed in claim 2 wherein: The fastener includes a fixed ring (305) fixedly connected to one side surface of the fixed U-shaped seat (100) and a fixed ring (305) fixedly connected to the other end of the double-acting screw (300). The top of the fixed ring (305) is threadedly connected to a fixing bolt (306), and the end of the fixing bolt (306) is threaded downward through the fixed ring (305) and abuts against the surface of the double-acting screw (300).

4. The surface treatment device for square and rectangular tubes according to claim 3, characterized in that: The two sets of third grinding plates (301) are respectively fixedly connected to the upper and lower parts of the outer side with guide rods (302), and the ends of the two sets of guide rods (302) on both sides pass through the inner wall of the corresponding side U-shaped seat (100).

5. The surface treatment device for square and rectangular tubes according to claim 1, characterized in that: The elastic pushing assembly includes a receiving plate (205) fixedly connected to the bottom left side of the fixed rod (200). A spring (206) is fixedly connected to the top of the receiving plate (205). A connecting screw (209) is fixedly connected to the top of the receiving plate (205) and inside the spring (206). A limiting hole (207) is opened at the top of one end of the square plate (201). The end of the connecting screw (209) passes through the limiting hole (207) upward and is threadedly connected to a limiting nut (208). The elastic force of the spring (206) acts on the square plate (201), so that the other end of the second grinding plate (204) maintains downward pressure.

6. The surface treatment device for square and rectangular tubes according to claim 5, characterized in that: The detachable component includes a connecting plate (202) that is fixedly connected to the other end of the square plate (201). Connecting bolts (203) are inserted into the top two sides of the connecting plate (202). The ends of the two sets of connecting bolts (203) pass downward through the connecting plate (202) and are threaded to the top of the second grinding plate (204).

7. A surface treatment apparatus for square and rectangular tubes according to any one of claims 1-6, characterized in that: A mounting plate (101) is fixedly connected to the left opening of the U-shaped seat (100), and an electric push rod (102) is fixedly connected to the left end of the mounting plate (101). The telescopic end of the electric push rod (102) passes through the mounting plate (101) and is fixedly connected to a push plate (104).

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