Stainless steel seamless tube interior grinding equipment

Abstract

The utility model discloses stainless steel seamless tube interior polishing equipment which comprises a rotating tube, one end of the rotating tube is rotatably connected with a supporting plate, a plurality of stroke grooves are formed in the outer tube wall of the rotating tube at equal intervals, and a two-way lead screw is rotatably connected to the end, away from the supporting plate, of the rotating tube in an inserted mode. The rod walls of the two ends, extending into the rotating pipe, of the two-way lead screw are both sleeved with stroke plates in a threaded mode, the stroke plates are movably connected into the rotating pipe, and a plurality of matched first hinge frames are fixedly connected to the positions, corresponding to the stroke grooves, of the outer walls of the stroke plates at equal intervals. The other end of the first hinge frame movably penetrates through the stroke groove and is hinged to a supporting rod through a pin shaft, the other end of the supporting rod is hinged to a second hinge frame, the stroke plate is driven by the two-way lead screw to move in the rotating pipe, and therefore the supporting rod hinged to the two ends drives the grinding plate to extend outwards to adjust the grinding radius of the grinding plate. And the device can polish the interiors of pipe bodies with different inner diameter sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to an internal grinding device for a stainless steel seamless pipe. Background Art

[0002] Stainless steel seamless pipe is a long steel strip with a hollow cross-section and no seams around it. The thicker the wall thickness of the product, the more economical and practical it is. The thinner the wall thickness, the higher the processing cost. After the stainless steel seamless pipe is processed and formed, in order to improve the production and processing quality of the stainless steel seamless pipe and ensure the performance of the stainless steel seamless pipe, the stainless steel seamless pipe needs to be polished to remove the burrs and rust inside the stainless steel seamless pipe.

[0003] However, most of the existing grinding equipment for stainless steel seamless pipes is used to grind the outer pipe wall of the stainless steel seamless pipe, and it is unable to extend to the inside of the stainless steel seamless pipe to grind its inner wall. Even if some grinding equipment can grind its inner wall, the grinding radius that its grinding plate can extend is limited and cannot be adjusted, resulting in it being unable to grind the inside of stainless steel seamless pipes with different inner diameters. Utility Model Content

[0004] The utility model aims to provide a stainless steel seamless pipe internal grinding device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an internal grinding device for a stainless steel seamless pipe, comprising a rotating tube, one end of the rotating tube is rotatably connected to a support plate, a plurality of travel grooves are evenly spaced on the outer tube wall of the rotating tube, a two-way screw is rotatably inserted into the end of the rotating tube away from the support plate, and travel plates are threadedly sleeved on the rod walls at both ends of the two-way screw extending to the inside of the rotating tube, the travel plate is movably connected to the inside of the rotating tube, and a plurality of matching first articulated frames are fixedly connected at equal intervals on the outer wall of the travel plate at positions corresponding to the travel grooves, the other end of the first articulated frame movably passes through the travel groove and is hinged to a support rod through a pin shaft, the other end of the support rod is hinged to a second articulated frame, and the other end of the second articulated frame is connected to a grinding plate.

[0006] Preferably, a servo motor is fixedly connected to the plate wall of the support plate away from the rotating tube through a fixed frame, the output end of the servo motor is fixedly connected to the rotating shaft through a coupling, and the other end of the rotating shaft moves through the support plate and is fixedly connected to the rotating tube.

[0007] Preferably, the servo motor is electrically connected to an external power supply via a PLC controller.

[0008] Preferably, one end of the bidirectional screw rod extending out of the rotating tube is fixedly connected to a toggle block.

[0009] Preferably, a toggle groove is provided on the side wall of the outer circle side of the toggle block.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is a stainless steel seamless pipe internal grinding equipment with a simple structure and easy use. The servo motor and the rotating tube can be supported by the support plate, and the servo motor can drive the rotating tube to rotate. When the rotating tube rotates, it can drive the grinding plate on its outside to grind the inner wall of the stainless steel seamless tube. When grinding stainless steel seamless tubes with different inner diameters, it can drive the stroke plate to move inside the rotating tube through a bidirectional screw, thereby driving the grinding plate to extend outward through the support rods hinged at both ends to adjust its grinding radius, so that the device can perform internal grinding on tubes with different inner diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0012] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0013] Figure 3 It is a structural schematic diagram of the support rod in the utility model;

[0014] Figure 4 for Figure 1 A partial enlarged view of part A;

[0015] Figure 5 for Figure 3 A partial enlarged view of part B.

[0016] In the figure: 1. rotating tube; 2. support plate; 3. servo motor; 4. travel slot; 5. bidirectional screw; 6. toggle block; 7. toggle slot; 8. travel plate; 9. first articulated frame; 10. support rod; 11. second articulated frame; 12. polishing plate. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-5The utility model provides a technical solution: an internal grinding device for a stainless steel seamless pipe, comprising a rotating pipe 1, one end of the rotating pipe 1 is rotatably connected to a support plate 2, a plurality of stroke grooves 4 are evenly spaced on the outer pipe wall of the rotating pipe 1, a bidirectional screw rod 5 is rotatably inserted at one end of the rotating pipe 1 away from the support plate 2, and the bidirectional screw rod 5 extends to the rod walls at both ends of the rotating pipe 1 and is threadedly sleeved with a stroke plate 8, the stroke plate 8 is movably connected to the inside of the rotating pipe 1, and a plurality of first articulated frames 9 corresponding to the positions of the stroke grooves 4 are evenly spaced and fixedly connected on the outer wall of the stroke plate 8, the other end of the first articulated frame 9 movably passes through the stroke groove 4 and is hinged to a support rod 10 through a pin shaft, the other end of the support rod 10 is hinged to a second articulated frame 11, and the other end of the second articulated frame 11 is connected to a grinding plate 12.

[0019] A servo motor 3 is fixedly connected to the wall of the support plate 2 away from the rotating tube 1 through a fixed frame. The output end of the servo motor 3 is fixedly connected to a rotating shaft through a coupling. The other end of the rotating shaft moves through the support plate 2 and is fixedly connected to the rotating tube 1. The servo motor 3 can drive the rotating tube 1 to rotate through the rotating shaft.

[0020] The servo motor 3 is electrically connected to the external power supply through the PLC controller. The TB6600 PLC controller can effectively control the speed and direction of the servo motor 3, and can effectively ensure that the device can be driven normally.

[0021] One end of the bidirectional screw rod 5 extending out of the rotating tube 1 is fixedly connected with a toggle block 6, and the toggle block 6 can effectively make the bidirectional screw rod 5 more convenient when rotating.

[0022] A toggle groove 7 is provided on the side wall of the outer circumference of the toggle block 6 , and the toggle groove 7 can increase the friction force of the toggle block 6 , and can effectively make the toggle block 6 more convenient when toggling.

[0023] Specifically, the rotating tube 1 and the servo motor 3 are supported by the support plate 2. When grinding tubes with different inner diameters, the bidirectional screw 5 is driven to rotate by the toggle block 6. When the bidirectional screw 5 rotates, it can drive the stroke plate 8 to move along the stroke groove 4 inside the rotating tube 1. When the two stroke plates 8 are brought together, the distance between the grinding plate 12 supported by the support rod 10 and the rotating tube 1 can be reduced. When the two stroke plates 8 are moved away from each other, the distance between the grinding plate 12 and the rotating tube 1 can be increased in the same way, so that the equipment can be adjusted for tubes with different inner diameters.

[0024] When in use, the servo motor 3 drives the rotating tube 1 to rotate, and the rotating tube 1 can drive the grinding plate 12 on the outside thereof to grind the inner wall of the stainless steel seamless tube when rotating.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stainless steel seamless pipe internal grinding device, characterized in that: The invention comprises a rotating tube (1), one end of which is rotatably connected to a support plate (2), a plurality of travel grooves (4) are evenly spaced on the outer tube wall of the rotating tube (1), a bidirectional screw rod (5) is rotatably inserted on the end of the rotating tube (1) away from the support plate (2), and travel plates (8) are threadedly sleeved on the rod walls at both ends of the bidirectional screw rod (5) extending to the inside of the rotating tube (1), the travel plate (8) is movably connected to the inside of the rotating tube (1), and a plurality of first articulated frames (9) corresponding to the positions of the travel grooves (4) are evenly spaced and fixedly connected on the outer wall of the travel plate (8), the other end of the first articulated frame (9) movably passes through the travel groove (4) and is articulated to a support rod (10) through a pin shaft, the other end of the support rod (10) is articulated to a second articulated frame (11), and the other end of the second articulated frame (11) is connected to a grinding plate (12).

2. The internal grinding device of a stainless steel seamless pipe according to claim 1, characterized in that: A servo motor (3) is fixedly connected to the wall of the support plate (2) on the side away from the rotating tube (1) via a fixed frame, and an output end of the servo motor (3) is fixedly connected to a rotating shaft via a coupling, and the other end of the rotating shaft movably passes through the support plate (2) and is fixedly connected to the rotating tube (1).

3. The internal grinding device of a stainless steel seamless pipe according to claim 2, characterized in that: The servo motor (3) is electrically connected to an external power supply via a PLC controller.

4. The internal grinding device of a stainless steel seamless pipe according to claim 1, characterized in that: One end of the bidirectional screw rod (5) extending out of the rotating tube (1) is fixedly connected to a toggle block (6).

5. The internal grinding device of a stainless steel seamless pipe according to claim 4, characterized in that: A toggle groove (7) is provided on the side wall of the outer circumference of the toggle block (6).

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