Steel pipe polishing device

Abstract

The utility model relates to the technical field of steel pipe machining, and discloses a steel pipe polishing device which comprises a base, the inner bottom face of the base is connected with an installation frame in a sliding mode through an electric sliding rail, an electric telescopic rod is fixedly installed on the top face of the installation frame, and an output shaft of the electric telescopic rod movably penetrates through the top of the installation frame. And a grinding block is fixedly installed at the output end of the electric telescopic rod, two hollow cylinders are symmetrically arranged above the base, and arc-shaped clamping plates which are symmetrically arranged up and down are movably arranged in each hollow cylinder. The steel pipe grinding device can grind steel pipes formed through two-side welding and end face welding, the applicability is wider, grinding comprehensiveness is effectively improved, diversified production and machining requirements are met, operation is easy, convenient and flexible, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, specifically a steel pipe grinding device. Background Technology

[0002] Steel pipes are hollow steel materials whose length is much greater than their diameter or circumference. Steel pipes are often formed through welding during processing, leaving weld seams that necessitate grinding at the weld joints. However, existing steel pipe grinding equipment still has certain shortcomings, such as:

[0003] The steel pipe grinding device with application number CN202321792992.7 can only grind one side of the steel pipe during use. For steel pipes welded from the end face, it cannot achieve circumferential grinding, which greatly limits its application scenarios, cannot meet the diverse production and processing needs, has limitations in use, and has poor functionality. Utility Model Content

[0004] The purpose of this invention is to provide a steel pipe grinding device to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a steel pipe grinding device, comprising a base, wherein an installation frame is slidably connected to the inner bottom surface of the base via an electric slide rail, and an electric telescopic rod is fixedly installed on the top surface of the installation frame, wherein the output shaft of the electric telescopic rod movably passes through the top of the installation frame, and a grinding block is fixedly installed at the output end of the electric telescopic rod;

[0006] Two hollow cylinders are symmetrically arranged above the base, and each hollow cylinder has an arc-shaped clamping plate arranged symmetrically in the upper and lower parts.

[0007] The above technical solution facilitates the effective grinding of the welding position of the welded steel pipe.

[0008] As a preferred embodiment of this utility model, an upright plate is installed on the outer side of each hollow cylinder, and the hollow cylinder is connected to the upright plate by a bearing. The bottom surface of the upright plate is slidably connected to the inner bottom surface of the base. A first bidirectional lead screw is threaded through the upright plate and threaded to the upright plate. The right end of the first bidirectional lead screw is connected to the right inner wall surface of the base by a bearing, and the left end of the first bidirectional lead screw is keyed to the shaft end of a first motor. The first motor is fixedly installed on the left end of the inner bottom surface of the base.

[0009] The above technical solution facilitates the movement of the hollow cylinder by rotating the first bidirectional screw, thus adapting to steel pipes of different lengths.

[0010] As a preferred embodiment of this utility model, a straight rod is fixedly installed on the inner side of each of the arc-shaped clamps, and a second bidirectional screw is threaded through the straight rod. The second bidirectional screw is threadedly connected to the straight rod, and the bottom end of the second bidirectional screw is connected to the inner top surface bearing of the hollow cylinder. The bearing of the second bidirectional screw passes through the top of the hollow cylinder. A guide rod is provided on one side of the second bidirectional screw, and the guide rod slides through the straight rod. The top and bottom ends of the guide rod are respectively connected to the inner top surface and inner bottom surface bearing of the hollow cylinder.

[0011] By adopting the above technical solution, it is convenient to use the rotation of the second bidirectional screw to drive the straight rod to move the arc-shaped clamping plate and clamp and fix the steel pipe.

[0012] As a preferred technical solution of this utility model, a hollow tube is provided through the transverse bearing on each of the upright plates, and a square rod is slidably connected to the inside of the hollow tube. The hollow tube has an outer circle and an inner square structure that matches the square rod. The right end of the square rod is connected to the bearing on the right inner wall of the base, and the left end of the square rod is connected to the shaft end of the second motor by a key. The second motor is fixedly installed on the left inner wall of the base.

[0013] The above technical solution facilitates the synchronous rotation of the hollow tube when the square rod rotates, while ensuring relative sliding between the square rod and the hollow tube.

[0014] As a preferred embodiment of this utility model, a drive gear is fixedly installed on the outer wall of the hollow tube, and the drive gear is located on the outside of the vertical plate. The drive gear meshes with the driven gear, and the driven gear is fixed to the outer wall of the hollow tube.

[0015] By adopting the above technical solution, the hollow tube can be rotated by the drive gear and the driven gear, thereby driving the clamped and fixed steel pipe to rotate, and realizing the circumferential grinding of the steel pipe.

[0016] As a preferred embodiment of this invention, the ratio of the number of teeth of the driving gear to the number of teeth of the driven gear is 1:8.

[0017] By adopting the above technical solution, it is easier for the driving gear to drive the driven gear to rotate, thus reducing energy consumption.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the steel pipe grinding device can grind steel pipes formed by welding on both sides and end face, which has a wider applicability, effectively improves the comprehensiveness of grinding, meets diverse production and processing needs, and is simple and flexible to operate and highly practical.

[0019] 1. The first bidirectional lead screw can be driven by the first motor to rotate, so that the vertical plate moves the hollow cylinder, thereby adjusting the position of the hollow cylinder and the arc-shaped clamping plate to suit steel pipes of different lengths;

[0020] 2. By rotating the second bidirectional screw, the straight rod drives the arc-shaped clamping plate to move, thereby clamping and fixing the steel pipe from both ends. The arc-shaped clamping plate can clamp steel pipes of different diameters by moving up and down, which improves the versatility of the device.

[0021] 3. The grinding block is raised and lowered by the electric telescopic rod, and the mounting frame, electric telescopic rod and grinding block are moved horizontally by the electric slide rail. The grinding block can be moved to the welding point and made to contact the weld. The mounting frame moves back and forth to grind one side of the steel pipe.

[0022] 4. The square rod is driven to rotate by the second motor. The drive gear and driven gear drive the hollow tube to rotate, thereby driving the clamped steel pipe to rotate synchronously, so as to perform circumferential grinding on the steel pipe with welded end face. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional connection structure between the base and the mounting bracket of this utility model;

[0025] Figure 3 This is a schematic diagram of the connection structure between the vertical plate, hollow cylinder, and hollow tube of this utility model in a front cross-section.

[0026] Figure 4 This is a schematic diagram of the three-dimensional connection structure between the driving gear and the driven gear of this utility model;

[0027] Figure 5 This is a schematic diagram of the three-dimensional connection structure of the straight rod, the arc-shaped clamping plate, and the first bidirectional lead screw of this utility model.

[0028] In the diagram: 1. Base; 2. Mounting bracket; 3. Electric telescopic rod; 4. Grinding block; 5. Hollow cylinder; 6. Arc-shaped clamp; 7. Vertical plate; 8. First double-acting lead screw; 9. First motor; 10. Second double-acting lead screw; 11. Straight rod; 12. Guide rod; 13. Hollow tube; 14. Square rod; 15. Second motor; 16. Driving gear; 17. Driven gear. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0030] Please see Figure 1 - Figure 5 The present invention provides a steel pipe grinding device, comprising a base 1, an mounting frame 2 slidably connected to the inner bottom surface of the base 1 via an electric slide rail, an electric telescopic rod 3 fixedly mounted on the top surface of the mounting frame 2, an output shaft of the electric telescopic rod 3 movably passing through the top of the mounting frame 2, and a grinding block 4 fixedly mounted on the output end of the electric telescopic rod 3. Two hollow cylinders 5 are symmetrically arranged above the base 1, and each hollow cylinder 5 has an arc-shaped clamp 6 symmetrically arranged inside.

[0031] Each hollow cylinder 5 has an upright plate 7 installed on its outer side, and the hollow cylinder 5 is connected to the upright plate 7 by a bearing. The bottom surface of the upright plate 7 is slidably connected to the inner bottom surface of the base 1. A first bidirectional lead screw 8 is installed through the horizontal shaft on the upright plate 7. The first bidirectional lead screw 8 is threadedly connected to the upright plate 7. The right end of the first bidirectional lead screw 8 is connected to the right inner wall surface of the base 1 by a bearing. The left end of the first bidirectional lead screw 8 is connected to the shaft end of the first motor 9 by a key. The first motor 9 is fixedly installed on the left end of the inner bottom surface of the base 1.

[0032] A straight rod 11 is fixedly installed on the inner side of each arc-shaped clamp 6, and a second bidirectional screw 10 is threaded through the straight rod 11. The second bidirectional screw 10 is threadedly connected to the straight rod 11, and the bottom end of the second bidirectional screw 10 is connected to the bearing on the inner top surface of the hollow cylinder 5. The bearing of the second bidirectional screw 10 passes through the top of the hollow cylinder 5. A guide rod 12 is provided on one side of the second bidirectional screw 10, and the guide rod 12 slides through the straight rod 11. The top and bottom ends of the guide rod 12 are respectively connected to the bearings on the inner top surface and inner bottom surface of the hollow cylinder 5.

[0033] A hollow tube 13 is provided through a transverse bearing on each upright plate 7, and a square rod 14 is slidably connected to the inside of the hollow tube 13. The hollow tube 13 has an outer circle and an inner square structure that matches the square rod 14. The right end of the square rod 14 is connected to the bearing on the right inner wall of the base 1, and the left end of the square rod 14 is connected to the shaft end key of the second motor 15. The second motor 15 is fixedly installed on the left inner wall of the base 1.

[0034] A drive gear 16 is fixedly installed on the outer wall of the hollow tube 13, and the drive gear 16 is located on the outside of the vertical plate 7. The drive gear 16 meshes with the driven gear 17, and the driven gear 17 is fixed to the outer wall of the hollow tube 5. The ratio of the number of teeth of the drive gear 16 to the number of teeth of the driven gear 17 is 1:8.

[0035] Working principle: Start the first motor 9, the first motor 9 drives the first bidirectional lead screw 8 to rotate. Since the first bidirectional lead screw 8 is threadedly connected to the vertical plate 7, the vertical plate 7 will slide laterally on the inner bottom surface of the base 1, and drive the hollow cylinder 5 and the arc-shaped clamping plate 6 to move, adjust the distance between the two hollow cylinders 5 to accommodate steel pipes of different lengths.

[0036] Then, rotate the second double-acting screw 10, which is threadedly connected to the straight rod 11. The straight rod 11 drives the arc-shaped clamping plate 6 to move up and down, clamping and fixing the steel pipe from both ends. At the same time, the guide rod 12 plays a guiding role to ensure that the straight rod 11 moves smoothly.

[0037] After the steel pipe is clamped, the mounting frame 2, electric telescopic rod 3 and grinding block 4 are moved horizontally by the electric slide rail. The grinding block 4 is moved to the welded part of the steel pipe. The electric telescopic rod 3 is started to control the grinding block 4 to move up and down to a suitable height to contact the surface of the steel pipe. The mounting frame 2 can drive the electric telescopic rod 3 and grinding block 4 to move back and forth to achieve grinding of the welded part on the side of the steel pipe.

[0038] The second motor 15 is started, which drives the square rod 14 to rotate. The square rod 14 drives the hollow tube 13 to rotate synchronously. The driving gear 16 on the outer wall of the hollow tube 13 rotates accordingly, causing the driven gear 17 meshing with the driving gear 16 to drive the hollow cylinder 5 to rotate. This causes the clamped and fixed steel pipe to rotate synchronously, realizing circumferential grinding of the steel pipe with welded end faces. This ensures that the weld seam on the entire surface of the steel pipe can be effectively ground. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] 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 steel pipe polishing device, comprising a base (1), characterized in that: the inner bottom surface of the base (1) is slidably connected with a mounting frame (2) through an electric sliding rail, and the top surface of the mounting frame (2) is fixedly installed with an electric telescopic rod (3), the output shaft of the electric telescopic rod (3) is movably penetrated through the top of the mounting frame (2), and the output end of the electric telescopic rod (3) is fixedly installed with a polishing block (4); two hollow cylinders (5) are symmetrically arranged above the base (1), and the inside of each hollow cylinder (5) is movably provided with an arc-shaped clamping plate (6) arranged symmetrically in up and down directions. The outer side of each hollow cylinder (5) is installed with a vertical plate (7), and the hollow cylinder (5) is bearing connected with the vertical plate (7), the bottom surface of the vertical plate (7) is transversely slidably connected with the inner bottom surface of the base (1), a first bidirectional screw rod (8) is penetrated and arranged on the upper horizontal shaft of the vertical plate (7), the first bidirectional screw rod (8) is threadedly connected with the vertical plate (7), the right end of the first bidirectional screw rod (8) is bearing connected with the right inner wall surface of the base (1), the left end of the first bidirectional screw rod (8) is key connected with the shaft end of a first motor (9), and the first motor (9) is fixedly installed on the left end of the inner bottom surface of the base (1). The inner side of each arc-shaped clamping plate (6) is fixedly installed with a straight rod (11), and a second bidirectional screw rod (10) is penetrated and arranged on the straight rod (11), the second bidirectional screw rod (10) is threadedly connected with the straight rod (11), the bottom end of the second bidirectional screw rod (10) is bearing connected with the inner top surface of the hollow cylinder (5), and the second bidirectional screw rod (10) is bearing penetrated through the top of the hollow cylinder (5), one side of the second bidirectional screw rod (10) is provided with a guide rod (12), the guide rod (12) is slidably penetrated through the straight rod (11), and the top and bottom ends of the guide rod (12) are respectively bearing connected with the inner top surface and the inner bottom surface of the hollow cylinder (5).

2. A steel pipe polishing apparatus according to claim 1, wherein A hollow tube (13) is transversely bearing penetrated and arranged on each vertical plate (7), a square rod (14) is transversely slidably connected in the inside of the hollow tube (13), the hollow tube (13) is of an outer circle inner square structure matching with the square rod (14), the right end of the square rod (14) is bearing connected with the right inner wall surface of the base (1), the left end of the square rod (14) is key connected with the shaft end of a second motor (15), and the second motor (15) is fixedly installed on the left inner wall surface of the base (1).

3. A steel pipe polishing apparatus according to claim 1, wherein An driving gear (16) is fixedly installed on the outer wall surface of the hollow tube (13), and the driving gear (16) is located outside the vertical plate (7), the driving gear (16) is meshingly connected with a driven gear (17), and the driven gear (17) is fixed to the outer wall surface of the hollow cylinder (5).

4. A steel pipe polishing apparatus according to claim 2, wherein The gear number ratio of the driving gear (16) to the driven gear (17) is 1:

8.

5. A steel pipe polishing apparatus according to claim 4, wherein ​ 6. A steel pipe polishing apparatus according to claim 5, wherein ​

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