A device for polishing a seamless steel pipe

The integrated design of the seamless steel pipe grinding device solves the problems of long transfer time, poor clamping stability and limited adaptability in the existing technology, and realizes efficient and precise grinding of seamless steel pipes.

CN224587676UActive Publication Date: 2026-08-04JIANGSU JIUJUN STEEL PIPE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JIUJUN STEEL PIPE TECHNOLOGY CO LTD
Filing Date
2025-09-05
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing seamless steel pipe grinding equipment suffers from problems such as long transfer time due to process separation, poor clamping stability, and limited adaptability, which affect grinding efficiency and accuracy.

Method used

The design integrates a seamless steel pipe grinding device, including an end face grinding device and an outer ring grinding device. It achieves synchronous or continuous grinding through a steel pipe conveying device, and performs automated grinding by combining a cylinder and a motor-driven grinding disc, adapting to different wall thicknesses and pipe diameters.

Benefits of technology

It enables simultaneous grinding of the end face and outer surface of seamless steel pipes, reduces process changeover time, improves grinding efficiency and precision, adapts to the needs of steel pipes of different specifications, and reduces wear and debris splashing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to seamless steel tube polishing technical field, concretely relates to a kind of seamless steel tube polishing device, including base, end face polishing device is equipped on base, end face polishing device side is equipped with outer ring polishing device, outer ring polishing device both sides are equipped with carrier roll, base side is equipped with feeding table, feeding table side is equipped with feeding cylinder, end face polishing device includes the end face fixed plate being equipped on base, end face fixed plate is equipped with end face rail plate, end face rail plate is equipped with end face sliding table, end face sliding table is equipped with end face mounting plate, end face mounting plate lower side is equipped with fixed block, fixed block is connected with end face cylinder, end face motor on end face mounting plate, end face motor side is equipped with end face grinding disc, end face grinding disc is equipped with end face shield.The utility model cooperates with the outer ring polishing device of symmetrical setting by end face polishing device, realizes the synchronous or continuous polishing of seamless steel tube end face and outer circle surface, need not multiple clamping.
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Description

Technical Field

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

[0002] After rolling or cutting, seamless steel pipes are prone to burrs and flash on the end face, and oxide scale or scratches may exist on the outer surface. Grinding is required to meet subsequent processing or usage requirements. Existing grinding devices have the following shortcomings: the process is separated, requiring manual transfer to the end face grinding equipment first, and then to the outer surface grinding equipment, resulting in time-consuming turnaround (transfer time for a single steel pipe ≥ 2 minutes); poor clamping stability, with the steel pipe easily slipping radially during transport, leading to insufficient grinding accuracy; and limited adaptability, requiring frequent replacement of grinding components for different pipe diameters, resulting in cumbersome adjustments. This utility model solves the above problems through an integrated structural design, improving grinding efficiency and quality. Utility Model Content

[0003] In view of the above-mentioned shortcomings in the existing technology, the present invention provides a seamless steel pipe grinding device to solve the problems in the background technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A seamless steel pipe grinding device includes a base, on which an end-face grinding device is mounted. A steel pipe conveying device is located on one side of the end-face grinding device, and a symmetrical outer ring grinding device is located on the other side of the steel pipe conveying device. Rollers are mounted on both sides of the outer ring grinding device. A feeding platform is located on one side of the base, and a feeding cylinder is located on one side of the feeding platform. The end-face grinding device includes an end-face fixing plate on the base, an end-face track plate on the end-face fixing plate, an end-face slide on the end-face track plate, an end-face mounting plate on the end-face slide, a fixing block on the lower side of the end-face mounting plate, the fixing block being connected to the end-face cylinder, an end-face motor on the end-face mounting plate, an end-face grinding disc on one side of the end-face motor, and an end-face guard on the end-face grinding disc.

[0005] Furthermore, the steel pipe conveying device includes a conveying mounting plate fixedly connected to the base. The conveying mounting plate is provided with a handle, a pressure plate is provided below the handle, a pressure roller is provided on the pressure plate, a driven roller is provided below the pressure roller, a driving roller is provided on one side of the driven roller, the driving roller is connected to the output shaft of the conveying motor, and the conveying motor is mounted on the conveying motor plate.

[0006] Furthermore, the outer ring grinding device includes an outer ring motor, the output end of which is connected to the outer ring grinding disc. An outer ring mounting plate is provided on the lower side of the outer ring motor, a fixing block is provided on the lower side of the outer ring mounting plate, an outer ring cylinder is provided on the fixing block, a track plate is provided on the lower side of the outer ring cylinder, a slide is provided on the upper side of the track plate, and a fixing plate is provided on the lower side of the track plate. The fixing plate is fixedly connected to the base.

[0007] Furthermore, the end face cylinder is fixedly connected to the end face track plate.

[0008] Furthermore, there are multiple steel pipe conveying devices, with a steel pipe conveying device located between the feeding platform and the outer ring grinding device.

[0009] Furthermore, the handle is threadedly connected to the pressure plate, a boss is provided on one side of the pressure plate, and a groove is provided on one side of the conveying mounting plate, with the boss and the groove slidingly engaged.

[0010] Furthermore, a slider is provided on the lower side of the end face mounting plate, and the slider slides in cooperation with the end face slide table.

[0011] Furthermore, the feeding table has an inclined structure, the feeding cylinder is equipped with a push block, and the surface of the roller is a rubber anti-slip layer.

[0012] Compared with the prior art, this utility model has the following advantages: By working in coordination between the end face grinding device and the symmetrically arranged outer ring grinding device, the end face and outer ring surface of the seamless steel pipe can be ground synchronously or continuously without multiple clamping. Compared with the traditional step-by-step grinding method, it reduces the process changeover time and is suitable for mass production scenarios. The steel pipe conveying device can stably convey seamless steel pipes by adjusting the distance between the pressure roller and the driven roller with the help of the rubber anti-slip layer of the idler roller; the outer ring grinding device can adjust the distance between the grinding discs by adjusting the outer ring cylinder, and the end face grinding device can adjust the feed amount by adjusting the end face cylinder to meet the grinding needs of steel pipes with different wall thicknesses. Each device is fixed by bolts, such as the detachable structure of the end face mounting plate and the slide, and the outer ring mounting plate and the slide, which facilitates the replacement of the grinding disc and the maintenance of the components; the boss-groove sliding fit design of the steel pipe conveying device reduces the wear of the pressure plate and the mounting plate. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a seamless steel pipe grinding device of this utility model; Figure 2 A three-dimensional structural diagram of the external grinding device and the end face grinding device; Figure 3 A three-dimensional structural diagram of the motor conveying device and the steel pipe conveying device; Figure 4 This is a three-dimensional structural diagram of the motor conveyor device; Figure 5 This is a cross-sectional view of the motor conveyor device; The reference numerals in the accompanying drawings of the instruction manual include: 1. Base; 2. End face grinding device; 21. End face motor; 22. End face cover; 23. End face grinding disc; 24. End face mounting plate; 25. End face slide; 26. End face fixing block; 27. End face cylinder; 28. End face track plate; 29. ​​End face fixing plate; 3. Grinding device; 31. Outer ring motor; 32. Outer ring grinding disc; 33. Outer ring mounting plate; 34. Outer ring cylinder; 35. Track plate; 36. Fixing plate; 37. Slide; 4. Steel pipe conveying device; 41. Handle; 42. Conveying mounting plate; 43. Pressure roller; 44. Driven roller; 45. Driving roller; 46. Conveying motor plate; 47. Conveying motor; 48. Pressure plate; 5. Feeding table; 6. Feeding cylinder; 7. Idler roller. Detailed Implementation

[0014] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0016] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0017] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Example 1: like Figure 1-5 As shown, this utility model discloses a seamless steel pipe grinding device, including a base 1, an end face grinding device 2 on the base 1, a steel pipe conveying device 4 on one side of the end face grinding device 2, a symmetrical outer ring grinding device 3 on one side of the steel pipe conveying device 4, rollers 7 on both sides of the outer ring grinding device 3, a feeding platform 5 on one side of the base 1, a feeding cylinder 6 on one side of the feeding platform 5, an end face fixing plate 29 on the base 1, an end face track plate 28 on the end face fixing plate 29, an end face slide 25 on the end face track plate 28, an end face mounting plate 24 on the end face slide 25, a fixing block 26 on the lower side of the end face mounting plate 24, the fixing block 26 being connected to the end face cylinder 27, an end face motor 21 on the end face mounting plate 24, an end face grinding disc 23 on one side of the end face motor 21, and an end face guard 22 on the end face grinding disc 23.

[0019] The steel pipe conveying device 4 includes a conveying mounting plate 42 fixedly connected to the base 1. The conveying mounting plate 42 is provided with a handle 41. A pressure plate 48 is provided under the handle 41. A pressure roller 43 is provided on the pressure plate 48. A driven roller 44 is provided under the pressure roller 43. A driving roller 45 is provided on one side of the driven roller 44. The driving roller 45 is connected to the output shaft of the conveying motor 47. The conveying motor 47 is mounted on the conveying motor plate 46.

[0020] Specifically, the steel pipe conveying device can stably convey seamless steel pipes by adjusting the distance between the pressure roller and the driven roller with a handle, in conjunction with the rubber anti-slip layer of the idler roller.

[0021] The outer ring grinding device 3 includes an outer ring motor 31, the output end of which is connected to an outer ring grinding disc 32. An outer ring mounting plate 33 is provided on the lower side of the outer ring motor 31. A fixing block is provided on the lower side of the outer ring mounting plate 33. An outer ring cylinder 34 is provided on the fixing block. A track plate 35 is provided on the lower side of the outer ring cylinder 34. A slide table 37 is provided on the upper side of the track plate 35. A fixing plate 36 is provided on the lower side of the track plate 35. The fixing plate 36 is fixedly connected to the base 1.

[0022] Specifically, the outer ring grinding device adjusts the grinding disc spacing through the outer ring cylinder, and the end face grinding device adjusts the feed amount with the help of the end face cylinder to meet the grinding needs of steel pipes with different wall thicknesses. The protective cover can effectively block grinding debris from flying.

[0023] The end face cylinder 27 is fixedly connected to the end face track plate 28. There are multiple steel pipe conveying devices 4, and the steel pipe conveying device 4 is located between the feeding table 5 and the outer ring grinding device 3.

[0024] The handle 41 is threadedly connected to the pressure plate 48. A boss is provided on one side of the pressure plate 48, and a groove is provided on one side of the conveying mounting plate 42. The boss and groove slide together. Specifically, the boss-groove sliding fit design of the steel pipe conveying device reduces wear on the pressure plate and mounting plate.

[0025] A slider is provided on the lower side of the end face mounting plate 24, and the slider slides in engagement with the end face slide table 25. Specifically, the slider and the slide table cooperate to facilitate the cylinder to push and adjust the grinding disc spacing.

[0026] The feeding platform 5 has an inclined structure, the feeding cylinder 6 is equipped with a pusher block, and the surface of the roller 7 is covered with a rubber anti-slip layer. Specifically, the inclined feeding platform uses gravity to assist in feeding, and the pusher block of the feeding cylinder can precisely control the entry of a single steel pipe into the conveying path, avoiding the stacking and jamming of multiple pipes.

[0027] Operating principle: According to the specifications of the seamless steel pipe to be ground, such as diameter 150mm, length 4m, and wall thickness 8mm, rotate handle 41 to adjust the height of pressure plate 48 so that the distance between pressure roller 43 and driven roller 44 is 155mm with a 5mm allowance for clamping; adjust the distance between the two outer ring grinding discs 32 to 166mm including a grinding allowance of 8mm through outer ring cylinder 34; the end face cylinder 27 is preset to feed stroke of 10mm to ensure that the end face grinding disc 23 can cover the burr area on the end face of the steel pipe.

[0028] A batch of steel pipes is placed on the inclined feeding table 5 at a 15° angle. The steel pipes roll down to the push block of the feeding cylinder 6 due to gravity. The feeding cylinder is activated, and the push block pushes a single steel pipe to the first steel pipe conveying device 4. The conveying motor 47 drives the drive wheel 45 to rotate, and the steel pipe moves along the roller 7 towards the grinding area through friction. The rubber anti-slip layer prevents the steel pipe from slipping. When the steel pipe enters the working area of ​​the outer ring grinding device 3, the outer ring motors 31 on both sides drive the outer ring grinding disc 32 to rotate. The outer ring cylinder 34 pushes the grinding disc along the slide table 37 of the track plate 35 to grind the outer surface of the steel pipe. During the grinding process, the front and rear rollers 7 support the steel pipe. The steel pipe with the outer ring polished is transported to the end face polishing device 2. The end face cylinder 27 pushes the end face slide 25 to move along the end face track plate 28, so that the end face grinding disc 23 contacts the end face of the steel pipe. The end face motor 21 drives the grinding disc to rotate, removing the end face burrs and oxide layer. The end face cover 22 blocks the flying debris. After polishing is completed, the end face cylinder is reset, and the steel pipe is sent to the unloading area by the subsequent conveying device. The above are merely embodiments of this utility model. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software and methods. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field to which this utility model pertains prior to the application date or priority date, are able to access all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in conjunction with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A seamless steel pipe grinding device, characterized in that: The device includes a base (1), on which an end face grinding device (2) is provided. A steel pipe conveying device (4) is provided on one side of the end face grinding device (2). A symmetrical outer ring grinding device (3) is provided on one side of the steel pipe conveying device (4). Rollers (7) are provided on both sides of the outer ring grinding device (3). A feeding platform (5) is provided on one side of the base (1). A feeding cylinder (6) is provided on one side of the feeding platform (5). The end face grinding device (2) includes an end face fixing plate (29) provided on the base (1). An end face track plate (28) is provided on the end face fixing plate (29), an end face slide (25) is provided on the end face track plate (28), an end face mounting plate (24) is provided on the end face slide (25), a fixing block (26) is provided on the lower side of the end face mounting plate (24), the fixing block (26) is connected to the end face cylinder (27), an end face motor (21) is provided on the end face mounting plate (24), an end face grinding disc (23) is provided on one side of the end face motor (21), and an end face guard (22) is provided on the end face grinding disc (23).

2. A device for polishing a seamless steel tube as set forth in claim 1, characterized by: The steel pipe conveying device (4) includes a conveying mounting plate (42) fixedly connected to the base (1). The conveying mounting plate (42) is provided with a handle (41). A pressure plate (48) is provided under the handle (41). A pressure roller (43) is provided on the pressure plate (48). A driven roller (44) is provided under the pressure roller (43). A driving roller (45) is provided on one side of the driven roller (44). The driving roller (45) is connected to the output shaft of the conveying motor (47). The conveying motor (47) is mounted on the conveying motor plate (46).

3. A device for polishing a seamless steel tube as set forth in claim 1, characterized in that: The outer ring grinding device (3) includes an outer ring motor (31), the output end of which is connected to an outer ring grinding disc (32). An outer ring mounting plate (33) is provided on the lower side of the outer ring motor (31), a fixing block is provided on the lower side of the outer ring mounting plate (33), an outer ring cylinder (34) is provided on the fixing block, a track plate (35) is provided on the lower side of the outer ring cylinder (34), a slide table (37) is provided on the upper side of the track plate (35), and a fixing plate (36) is provided on the lower side of the track plate (35). The fixing plate (36) is fixedly connected to the base (1).

4. A device for polishing a seamless steel tube as set forth in claim 1, characterized in that: The end face cylinder (27) is fixedly connected to the end face track plate (28).

5. A device for polishing a seamless steel tube as set forth in claim 1, characterized by: There are multiple steel pipe conveying devices (4), and the steel pipe conveying device (4) is provided in front of the feeding platform (5) and the outer ring grinding device (3).

6. A device for polishing a seamless steel tube as set forth in claim 2, characterized by: The handle (41) is threadedly connected to the pressure plate (48). The pressure plate (48) has a boss on one side and a groove on one side of the conveying mounting plate (42). The boss and the groove slide together.

7. A device for polishing a seamless steel tube as set forth in claim 1, characterized by: The end face mounting plate (24) is provided with a slider on its lower side, and the slider is in sliding cooperation with the end face slide (25).

8. A device for polishing a seamless steel tube as set forth in claim 1, characterized by: The feeding platform (5) is an inclined structure, the feeding cylinder (6) is equipped with a push block, and the surface of the roller (7) is a rubber anti-slip layer.