Surface treatment device for metal workpiece

Abstract

The utility model discloses a surface treatment device for a metal workpiece, which relates to the technical field of surface treatment of the metal workpiece and comprises an inner wall polishing machine, a supporting pipe is mounted on one side of the inner wall polishing machine, a rotating rod is rotatably arranged in the supporting pipe, a fixing block is arranged at one end, far away from the supporting pipe, of the rotating rod, and arc-shaped plates are arranged at the top and the bottom of the fixing block. The inner wall of the steel pipe can extrude an arc-shaped plate, the arc-shaped plate can extrude a spring through a connecting block, the spring can apply reverse force to the arc-shaped plate, the arc-shaped plate is tightly attached to the inner wall of the steel pipe all the time, grinding abrasive paper on the arc-shaped plate can make better contact with the inner wall of the steel pipe, and the grinding effect is improved; the rotating ring can extrude the rotating rod, the rotating rod can extrude the inserting block, so that the inserting block and the inserting groove are fixed, the quick connecting function of the fixing block and the rotating rod is achieved, the clamping effect can be enhanced through the inserting block and the inserting groove, and the inserting block and the inserting groove can be effectively prevented from sliding relative to each other.

Description

Technical Field

[0001] The utility model relates to the technical field of surface treatment of metal workpieces, in particular to a surface treatment device for metal workpieces. Background Art

[0002] Steel pipes are widely used in the steel pipe industry due to their inherent chemical stability, cold and heat resistance, pressure resistance, corrosion resistance, and fire resistance. However, during the steel pipe manufacturing process, due to hot rolling and cold rolling, unevenly distributed burrs inevitably form on the inner surface of the steel pipe, resulting in poor inner surface flatness. During processing, the inner surface of the steel pipe needs to be polished.

[0003] A circular tube internal and external polishing machine with patent number CN215470418U is provided by setting up a processing platform, with support columns provided at the four corners of the bottom of the processing platform, a motor provided on one side of the top of the processing platform, a rotating shaft provided at the output end of the motor, one end of the rotating shaft is transmission-connected to the output end of the motor, and an inner polishing wheel is provided at the other end of the rotating shaft, a circular tube placement groove is fixedly connected to the middle position of the top of the processing platform, and a polishing port is provided at the top of the circular tube placement groove.

[0004] However, research has shown that the existing inner wall polishing device still has the following defects:

[0005] After the existing inner wall polishing device has been used for a period of time, the grinding sandpaper will wear out due to long-term friction with the inner wall of the steel pipe, resulting in a gap between the grinding sandpaper and the inner wall of the pipe, making it impossible for the grinding sandpaper to adhere tightly to the inner wall of the steel pipe, thereby reducing the grinding efficiency. At the same time, the grinding sandpaper and the rotating rod are generally connected by inserting a cylindrical plug into the slot. As the use time increases, relative sliding may occur between the cylinder and the circular groove, resulting in the inability to grind the inner wall of the steel pipe. Therefore, it is necessary to optimize a surface treatment device for metal workpieces through technological innovation and design optimization. Utility Model Content

[0006] After the existing inner wall polishing device has been used for a period of time, the grinding sandpaper will wear out due to long-term friction with the inner wall of the steel pipe, resulting in a gap between the grinding sandpaper and the inner wall of the pipe, making it impossible for the grinding sandpaper to adhere closely to the inner wall of the steel pipe, thereby reducing the grinding efficiency. At the same time, the grinding sandpaper and the rotating rod are generally connected by inserting a cylindrical plug into the slot. As the use time increases, relative sliding may occur between the cylinder and the circular groove, resulting in the inability to grind the inner wall of the steel pipe. In order to solve the above problems, the embodiment of the present application provides a surface treatment device for metal workpieces The curved plate will be squeezed by the inner wall of the steel pipe, and the curved plate will squeeze the spring through the connecting block. The spring will give the curved plate a reverse force, so that the curved plate is always close to the inner wall of the steel pipe, so that the sandpaper on the curved plate can better contact with the inner wall of the steel pipe, thereby improving the grinding effect. At the same time, by aligning the plug block with the slot and inserting it, rotating the rotating ring, the rotating ring will squeeze the rotating rod, and the rotating rod will squeeze the plug block, so that the plug block is fixed to the slot, thereby completing the quick connection function of the fixed block and the rotating rod. The plug block and the slot can enhance the clamping effect and can effectively prevent the plug block and the slot from sliding relative to each other.

[0007] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0008] A surface treatment device for a metal workpiece, comprising:

[0009] An inner wall polishing machine, a support tube is installed on one side of the inner wall polishing machine, a rotating rod is rotated inside the support tube, a fixed block is provided at the end of the rotating rod away from the support tube, arc-shaped plates are provided on the top and bottom of the fixed block, and grinding sandpaper is fixed on the side of the arc-shaped plate away from the fixed block, an elastic mechanism is provided inside the fixed block that can make the grinding sandpaper close to the inner wall of the steel pipe, a limiting mechanism is provided between the fixed block and the rotating rod, and the limiting mechanism can quickly fix the fixed block and the connecting rod.

[0010] In one possible implementation, the elastic mechanism includes connecting grooves provided at the top and bottom of the fixed block, a connecting block provided inside the connecting groove, the connecting block is fixedly connected to the curved plate on the side facing the curved plate, a spring is provided inside the connecting groove, when the curved plate enters the inner wall of the steel pipe, the inner wall of the steel pipe will squeeze the curved plate, and the curved plate will squeeze the spring through the connecting block, and the spring will give the curved plate a reverse force, so that the curved plate is always close to the inner wall of the steel pipe, so that the grinding sandpaper on the curved plate can better contact with the inner wall of the steel pipe, thereby improving the grinding effect.

[0011] In one possible implementation, sliding grooves are provided on both sides of the connecting groove, and a sliding block is slidably connected inside the sliding groove. The sliding block is fixedly connected to the connecting block. When the connecting block slides inside the connecting groove, it will drive the sliding block to slide in the sliding groove, thereby improving the stability of the connecting block when moving, and also preventing the connecting block from falling off from the connecting groove.

[0012] In one possible implementation, a guide groove is provided on one side of the connecting block close to the connecting groove, a guide post is sliding inside the guide groove, the guide post is fixedly connected to the inner wall of the connecting groove, and the spring is sleeved on the outside of the guide post. When the connecting block moves, the guide post slides in the guide groove, and the spring is sleeved on the outside of the guide post to facilitate limiting the spring and prevent the spring from moving in the connecting groove.

[0013] In one possible implementation, the limiting mechanism includes a slot provided on the side of the rotating rod facing the fixed block, a notch provided on the rotating rod, the notch communicating with the slot, an insert block fixed on the side of the fixed block facing the rotating rod, the insert block can be inserted into the slot, a rotating ring is provided on the outside of the rotating rod, the insert block is aligned with the slot and inserted, the rotating ring is rotated, the rotating ring will squeeze the rotating rod, and the rotating rod will squeeze the insert block, so that the insert block is fixed to the slot, thereby completing the connection function of the fixed block and the rotating rod, the insert block and the slot can enhance the clamping effect, and can effectively prevent the insert block and the slot from sliding relative to each other.

[0014] In a possible implementation, a baffle is fixed to the side of the rotating rod facing the fixed block, and the baffle is arranged in an arc shape to prevent the rotating ring from falling off the rotating rod.

[0015] In a possible implementation, a positive thread is provided inside the rotating ring, and a negative thread is provided outside the rotating rod. The positive thread and the negative thread match each other to facilitate the rotation of the rotating ring on the rotating rod.

[0016] In one possible implementation, the side of the arc plate away from the rotating rod is set as an inclined surface, and the inclined surface is polished. Since the top of the arc plate is raised, it may be blocked by the steel pipe when entering the inner wall of the steel pipe. The inclined surface is set to facilitate insertion into the inner wall of the steel pipe.

[0017] In summary, the present invention has at least one of the following beneficial technical effects:

[0018] 1. The inner wall of the steel pipe will squeeze the curved plate, and the curved plate will squeeze the spring through the connecting block. The spring will give the curved plate a reverse force, so that the curved plate is always close to the inner wall of the steel pipe, so that the grinding sandpaper on the curved plate can better contact with the inner wall of the steel pipe, thereby improving the grinding effect.

[0019] 2. Insert the plug into the slot and rotate the rotating ring. The rotating ring will squeeze the rotating rod, and the rotating rod will squeeze the plug, so that the plug is fixed to the slot. This completes the quick connection function of the fixed block and the rotating rod. The plug and the slot can enhance the clamping effect and effectively prevent the plug and the slot from sliding relative to each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure at center A;

[0022] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the fixed block structure of the utility model;

[0024] Figure 5 This is a cross-sectional view of the internal structure of the fixing block of the present invention.

[0025] Figure numerals: 1. inner wall polishing machine; 2. support tube; 3. rotating ring; 4. grinding sandpaper; 5. arc plate; 6. fixed block; 7. rotating rod; 8. notch; 9. baffle; 10. slot; 11. insert block; 12. connecting block; 13. guide column; 14. sliding block; 15. sliding groove; 16. spring; 17. connecting groove; 18. guide groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the present invention to clearly and completely describe the technical solution of the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The instrument placement rack involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] This embodiment introduces a specific structure of a surface treatment device for a metal workpiece. Figure 1-Figure 5 As shown, a surface treatment device for a metal workpiece comprises:

[0028] An inner wall polishing machine 1, a support tube 2 is installed on one side of the inner wall polishing machine 1, a rotating rod 7 is rotated inside the support tube 2, a fixed block 6 is provided at the end of the rotating rod 7 away from the support tube 2, and an arc-shaped plate 5 is provided on the top and bottom of the fixed block 6. A grinding sandpaper 4 is fixed on the side of the arc-shaped plate 5 away from the fixed block 6, and an elastic mechanism is provided inside the fixed block 6 to enable the grinding sandpaper 4 to be close to the inner wall of the steel pipe. A limiting mechanism is provided between the fixed block 6 and the rotating rod 7, and the limiting mechanism can quickly fix the fixed block 6 and the connecting rod.

[0029] After being used for a period of time, the grinding sandpaper 4 on the market will wear out due to long-term friction with the inner wall of the steel pipe, resulting in a gap between the grinding sandpaper 4 and the inner wall of the pipe, making it impossible for the grinding sandpaper 4 to adhere tightly to the inner wall of the steel pipe, thereby reducing the grinding efficiency. The elastic mechanism includes connecting grooves 17 provided on the top and bottom of the fixing block 6, and a connecting block 12 is provided inside the connecting groove 17. The connecting block 12 is fixedly connected to the curved plate 5 on the side facing the curved plate 5, and a spring 16 is provided inside the connecting groove 17. When the curved plate 5 enters the inner wall of the steel pipe, the inner wall of the steel pipe will squeeze the curved plate 5, and the curved plate 5 will squeeze the spring 16 through the connecting block 12. The spring 16 will give the curved plate 5 a reverse force, so that the curved plate 5 is always in close contact with the inner wall of the steel pipe, so that the grinding sandpaper 4 on the curved plate 5 can better contact with the inner wall of the steel pipe, thereby improving the grinding effect.

[0030] At the same time, sliding grooves 15 are provided on both sides of the connecting groove 17, and a sliding block 14 is slidably connected inside the sliding groove 15. The sliding block 14 is fixedly connected to the connecting block 12. When the connecting block 12 slides inside the connecting groove 17, it will drive the sliding block 14 to slide in the sliding groove 15, which is convenient for improving the stability of the connecting block 12 when moving, and can also prevent the connecting block 12 from falling off from the connecting groove 17.

[0031] What's more, a guide groove 18 is provided on the side of the connecting block 12 near the connecting groove 17, and a guide column 13 slides inside the guide groove 18. The guide column 13 is fixedly connected to the inner wall of the connecting groove 17, and the spring 16 is sleeved on the outside of the guide column 13. When the connecting block 12 moves, the guide column 13 slides in the guide groove 18, and the spring 16 is sleeved on the outside of the guide column 13 to facilitate limiting the spring 16 and prevent the spring 16 from moving in the connecting groove 17.

[0032] At present, the market generally connects the grinding sandpaper 4 and the rotating rod 7 by inserting a cylindrical plug-in block 11 into the slot 10. As the use time increases, relative sliding may occur between the cylinder and the circular groove, resulting in the inability to grind the inner wall of the steel pipe. The limiting mechanism includes a slot 10 provided on the side of the rotating rod 7 facing the fixed block 6, and a notch 8 provided on the rotating rod 7. The notch 8 is communicated with the slot 10. The fixed block 6 is fixed with an plug-in block 11 on the side facing the rotating rod 7. The plug-in block 11 can be inserted into the slot 10. A rotating ring 3 is provided on the outside of the rotating rod 7. The plug-in block 11 is aligned with the slot 10 and inserted. The rotating ring 3 is rotated. The rotating ring 3 will squeeze the rotating rod 7, and the rotating rod 7 will squeeze the plug-in block 11, so that the plug-in block 11 is fixed to the slot 10, thereby completing the connection function of the fixed block 6 and the rotating rod 7. The plug-in block 11 and the slot 10 can enhance the clamping effect and can effectively prevent the plug-in block 11 and the slot 10 from sliding relative to each other.

[0033] At the same time, a baffle 9 is fixed on the side of the rotating rod 7 facing the fixed block 6. The baffle 9 is arranged in an arc shape to prevent the rotating ring 3 from falling off the rotating rod 7.

[0034] In addition, a positive thread is provided inside the rotating ring 3 and a negative thread is provided outside the rotating rod 7 . The positive thread and the negative thread match each other, making it easy for the rotating ring 3 to rotate on the rotating rod 7 .

[0035] Furthermore, the side of the arc plate 5 away from the rotating rod 7 is set as an inclined surface, and the inclined surface is polished. Since the top of the arc plate 5 is raised, it may be blocked by the steel pipe when entering the inner wall of the steel pipe. The inclined surface is set to facilitate insertion into the inner wall of the steel pipe.

[0036] When the staff needs to grind the steel pipe, they put the steel pipe on the placement rack, align the support pipe 2 with the steel pipe, turn on the inner wall polishing machine 1, and the inner wall polishing machine 1 will drive the support rod to enter the inner wall of the pipe. At the same time, the rotating rod 7 will rotate, so that the grinding sandpaper 4 grinds the inner wall of the pipe. When the curved plate 5 enters the inner wall of the steel pipe, the inner wall of the steel pipe will squeeze the curved plate 5, and the curved plate 5 will squeeze the spring 16 through the connecting block 12. The spring 16 will give the curved plate 5 a reverse force, so that the curved plate 5 starts to Finally, it is close to the inner wall of the steel pipe, so that the grinding sandpaper 4 on the curved plate 5 can better contact with the inner wall of the steel pipe, improving the grinding effect. At the same time, the plug 11 is aligned with the slot 10 and inserted, and the rotating ring 3 is rotated. The rotating ring 3 will squeeze the rotating rod 7, and the rotating rod 7 will squeeze the plug 11, so that the plug 11 is fixed to the slot 10, thereby completing the quick connection function of the fixed block 6 and the rotating rod 7. The plug 11 and the slot 10 can enhance the clamping effect and can effectively prevent the plug 11 and the slot 10 from sliding relative to each other.

[0037] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A surface treatment device for a metal workpiece, characterized in that: include: An inner wall polishing machine (1) is provided with a support tube (2) installed on one side of the inner wall polishing machine (1), a rotating rod (7) is rotated inside the support tube (2), a fixed block (6) is provided at one end of the rotating rod (7) away from the support tube (2), an arc-shaped plate (5) is provided at the top and bottom of the fixed block (6), a grinding sandpaper (4) is fixed on the side of the arc-shaped plate (5) away from the fixed block (6), an elastic mechanism is provided inside the fixed block (6) to enable the grinding sandpaper (4) to be closely attached to the inner wall of the steel pipe, a limiting mechanism is provided between the fixed block (6) and the rotating rod (7), and the limiting mechanism can quickly fix the fixed block (6) and the connecting rod.

2. The surface treatment device for a metal workpiece according to claim 1, wherein: The elastic mechanism comprises connecting grooves (17) provided at the top and bottom of the fixing block (6), a connecting block (12) being provided inside the connecting groove (17), the connecting block (12) being fixedly connected to the curved plate (5) on the side facing the curved plate (5), and a spring (16) being provided inside the connecting groove (17).

3. The surface treatment device for a metal workpiece according to claim 2, wherein: Sliding grooves (15) are provided on both sides of the connecting groove (17), and a sliding block (14) is slidably connected inside the sliding groove (15), and the sliding block (14) is fixedly connected to the connecting block (12).

4. The surface treatment device for a metal workpiece according to claim 3, wherein: The connecting block (12) is provided with a guide groove (18) on one side close to the connecting groove (17), a guide column (13) is slidably arranged inside the guide groove (18), the guide column (13) is fixedly connected to the inner wall of the connecting groove (17), and the spring (16) is sleeved on the outside of the guide column (13).

5. The surface treatment device for a metal workpiece according to claim 1, wherein: The limiting mechanism comprises a slot (10) provided on the side of the rotating rod (7) facing the fixed block (6), a notch (8) provided on the rotating rod (7), the notch (8) communicating with the slot (10), an insert block (11) fixed on the side of the fixed block (6) facing the rotating rod (7), the insert block (11) being insertable into the slot (10), and a rotating ring (3) provided on the outside of the rotating rod (7).

6. The surface treatment device for a metal workpiece according to claim 5, wherein: A baffle (9) is fixed on the side of the rotating rod (7) facing the fixed block (6), and the baffle (9) is arranged in an arc shape.

7. The surface treatment device for a metal workpiece according to claim 6, wherein: The rotating ring (3) is provided with a positive thread inside, and the rotating rod (7) is provided with a negative thread outside, and the positive thread and the negative thread match each other.

8. The surface treatment device for a metal workpiece according to claim 1, wherein: The side of the arc-shaped plate (5) away from the rotating rod (7) is provided with an inclined surface, and the inclined surface is polished.

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