A quick positioning and punching device for central hole of stainless steel pipe
The drilling device driven by a linear module and a rotary motor solves the problem that stainless steel pipes cannot be drilled with eccentric holes in the existing technology, and realizes the precise positioning of the center hole and the processing of eccentric holes in stainless steel pipes, thereby improving processing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JINGXIONG STEEL PROD CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-05
AI Technical Summary
Existing rapid positioning and drilling devices for stainless steel pipe centers cannot drill eccentric holes according to the uneven thickness or diameter of the stainless steel pipe, which has limitations.
A rapid positioning and drilling device for the center hole of stainless steel tubes was designed, comprising a linear module, a rotary motor, and a drilling assembly. The linear module adjusts the position of the drilling cutter, and combined with the rotary motor and servo motor drive, it achieves precise positioning of stainless steel tubes and eccentric hole processing.
It enables precise positioning of the center hole and machining of eccentric holes in stainless steel pipes, avoiding frequent equipment changes and improving processing efficiency and accuracy.
Smart Images

Figure CN224322704U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of drilling devices, specifically a device for quickly positioning and drilling the center hole of a stainless steel pipe. Background Technology
[0002] Stainless steel pipe is a hollow, long, round steel material, widely used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components. Stainless steel pipes are classified by material into ordinary carbon steel pipes, high-quality carbon structural steel pipes, alloy structural pipes, alloy steel pipes, bearing steel pipes, and bimetallic composite pipes, plated and coated pipes, etc., to save precious metals and meet special requirements. Stainless steel pipes come in many varieties, have different uses, varying technical requirements, and different production methods.
[0003] In the existing technology, a center hole of a certain depth and diameter is machined into the stainless steel pipe body to pierce the hot-rolled steel pipe. However, in actual operation, due to the uneven material thickness or diameter of the stainless steel pipe, it is sometimes necessary to drill an eccentric hole in the steel pipe according to the needs of use. However, the existing stainless steel pipe center hole quick positioning and drilling device cannot drill an eccentric hole according to the above problem, which has certain limitations. Utility Model Content
[0004] The purpose of this invention is to provide a device for quickly positioning and drilling the center hole of a stainless steel pipe, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A device for quickly positioning and drilling the center hole of a stainless steel pipe includes a base. Support rods are fixedly connected to the four corners of the base's top. A top plate is fixedly connected to the top of the support rods. A telescopic cylinder is fixedly connected to the top of the top plate. The telescopic end of the telescopic cylinder passes through the top plate and is located below it. A fixing plate is fixedly connected to the telescopic end of the telescopic cylinder. A linear module is fixedly connected to the bottom of the fixing plate. A linear module slider is slidably connected inside the linear module. A rotary motor is fixedly connected inside the linear module slider. A drilling component for drilling holes in the stainless steel pipe is provided at the output end of the rotary motor. A placement mechanism for positioning the stainless steel pipe is provided on the top of the base.
[0007] Preferably, the punching assembly includes a rotating plate fixedly connected to the output end of the rotary motor. The top of the rotating plate contacts the bottom of the linear module slider. The bottom of the rotating plate has four sliding grooves, in which punching blades are slidably connected. A driving component for simultaneously adjusting the position of the punching blades is provided inside the four sliding grooves.
[0008] Preferably, the driving component includes a first threaded rod, a second threaded rod, a third threaded rod, and a fourth threaded rod rotatably connected to different sliding grooves via bearings. The interiors of the first threaded rod, the second threaded rod, the third threaded rod, and the fourth threaded rod are threadedly connected to different punching tools. A second bevel gear is fixedly sleeved on one end of the first threaded rod. A first bevel gear is meshed with the surface of the second bevel gear. The first bevel gear is fixedly sleeved on the surface of the second threaded rod. A fourth bevel gear is meshed with the surface of the first bevel gear. The fourth bevel gear is fixedly sleeved on the surface of the third threaded rod. The third bevel gear is fixedly sleeved on the surface of the fourth threaded rod. A second servo motor is fixedly connected to the outer wall of the rotating plate at one end of the first threaded rod.
[0009] Preferably, the placement mechanism includes a placement frame fixedly connected to the top of the base. The top of the placement frame has a placement groove, and a stainless steel tube is placed on the surface of the placement groove. The top of the placement frame has a first sliding groove and a second sliding groove. The inner wall of the second sliding groove is rotatably connected to a bidirectional threaded rod via a bearing. Both ends of the surface of the bidirectional threaded rod are threadedly connected to a centering plate. The other end of the centering plate is slidably connected inside the first sliding groove. The center of the centering plate is slidably connected to the surface of the placement groove. The outer wall of the centering plate is in contact with the outer wall of the stainless steel tube. One end of the bidirectional threaded rod is fixedly connected to the outer wall of the placement frame with a first servo motor.
[0010] Preferably, the four corners of the bottom of the base are fixedly connected to support columns.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This utility model discloses a rapid positioning and drilling device for the center hole of a stainless steel pipe. By setting a linear module, it can drill a hole in the center of the stainless steel pipe after the pipe is aligned according to its diameter. Then, by appropriately adjusting the position of the drilling blade, it can achieve eccentric drilling of the stainless steel pipe. Furthermore, by setting a drilling assembly, the distance between the drilling blade and the center of the rotating plate can be adjusted according to the actual situation to adjust the drilling size, achieve precise drilling, and avoid the need for frequent replacement of drilling equipment, making it convenient to use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a rapid positioning and drilling device for the center hole of a stainless steel pipe according to the present invention.
[0014] Figure 2 This is a schematic diagram of the placement mechanism of this utility model;
[0015] Figure 3 This is a schematic diagram of the punching mechanism of this utility model;
[0016] Figure 4 This is a schematic diagram of the punching component structure of this utility model;
[0017] Figure 5 This is a schematic diagram of the drive component structure of this utility model.
[0018] In the diagram: 1. Base; 2. Support rod; 3. Top plate; 4. Telescopic cylinder; 5. Placement frame; 6. Placement slot; 7. Stainless steel pipe; 8. Centering plate; 9. First slide rail; 10. Second slide rail; 11. Bidirectional threaded rod; 12. First servo motor; 13. Fixing plate; 14. Linear module; 15. Linear module slider; 16. Rotating plate; 17. Drilling tool; 18. Rotary motor; 19. Second servo motor; 20. First threaded rod; 21. Second threaded rod; 22. Third threaded rod; 23. Fourth threaded rod; 24. First bevel gear; 25. Second bevel gear; 26. Third bevel gear; 27. Fourth bevel gear. Detailed Implementation
[0019] 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.
[0020] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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, they should not be construed as limitations on this utility model.
[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] Please see Figure 1-5This utility model provides a technical solution: a device for quickly positioning and drilling the center hole of a stainless steel pipe 7, including a base 1, support rods 2 fixedly connected to the four corners of the top of the base 1, a top plate 3 fixedly connected to the top of the support rods 2, a telescopic cylinder 4 fixedly connected to the top of the top plate 3, the telescopic end of the telescopic cylinder 4 passing through the top plate 3 and located below the top plate 3, a fixing plate 13 fixedly connected to the telescopic end of the telescopic cylinder 4, a linear module 14 fixedly connected to the bottom of the fixing plate 13, a linear module slider 15 slidably connected inside the linear module 14, a rotary motor 18 fixedly connected inside the linear module slider 15, a drilling component for drilling the stainless steel pipe 7 provided at the output end of the rotary motor 18, and a placement mechanism for positioning the stainless steel pipe 7 provided at the top of the base 1.
[0023] Please see Figure 4 This utility model provides a new embodiment in which the punching assembly includes a rotating plate 16 fixedly connected to the output end of the rotating motor 18. The top of the rotating plate 16 is in contact with the bottom of the slider 15 of the linear module 14. The bottom of the rotating plate 16 is provided with four sliding grooves. A punching knife 17 is slidably connected inside the four sliding grooves. A driving component for simultaneously adjusting the position of the punching knife 17 is provided inside the four sliding grooves.
[0024] Please see Figure 5 This utility model provides a new embodiment in which the driving component includes a first threaded rod 20, a second threaded rod 21, a third threaded rod 22, and a fourth threaded rod 23 rotatably connected to different sliding grooves via bearings. The interiors of the first threaded rod 20, the second threaded rod 21, the third threaded rod 22, and the fourth threaded rod 23 are threadedly connected to different punching tools 17. A second bevel gear 25 is fixedly sleeved on one end of the first threaded rod 20. A first bevel gear 24 is meshed with the surface of the second bevel gear 25. The first bevel gear 24 is fixedly sleeved on the surface of the second threaded rod 21. A fourth bevel gear 27 is meshed with the surface of the first bevel gear 24. The fourth bevel gear 27 is fixedly sleeved on the surface of the third threaded rod 22. A third bevel gear 26 is meshed with the surface of the fourth bevel gear 27. The third bevel gear 26 is fixedly sleeved on the surface of the fourth threaded rod 23. A second servo motor 19 is fixedly connected to the outer wall of the rotating plate 16 at one end of the first threaded rod 20.
[0025] Please see Figure 2This utility model provides a new embodiment in which the placement mechanism includes a placement frame 5 fixedly connected to the top of the base 1. The top of the placement frame 5 is provided with a placement groove 6. A stainless steel tube 7 is placed on the surface of the placement groove 6. The top of the placement frame 5 is provided with a first sliding groove 9 and a second sliding groove 10. The inner wall of the second sliding groove 10 is rotatably connected to a bidirectional threaded rod 11 through a bearing. The two ends of the surface of the bidirectional threaded rod 11 are threadedly connected to a centering plate 8. The other end of the centering plate 8 is fitted and slidably connected inside the first sliding groove 9. The center of the centering plate 8 is slidably connected to the surface of the placement groove 6. The outer wall of the centering plate 8 is in contact with the outer wall of the stainless steel tube 7. One end of the bidirectional threaded rod 11 is fixedly connected to the outer wall of the placement frame 5 with a first servo motor 12.
[0026] Please see Figure 1 This utility model provides a new embodiment in which support columns are fixedly connected to the four corners of the bottom of the base 1 for supporting this utility model.
[0027] Working principle: When stainless steel pipes 7 of different lengths are placed on the placement slot 6, the operator starts the first servo motor 12. The start of the first servo motor 12 will cause the bidirectional threaded rod 11 to rotate. The rotation of the bidirectional threaded rod 11 will cause the centering plate 8 to move towards the center at the same time. When both centering plates 8 are in contact with the ends of the stainless steel pipes 7, the centering of the stainless steel pipes 7 is achieved.
[0028] Then, the operator starts the linear module 14 according to the thickness or diameter of the stainless steel pipe 7. The start of the linear module 14 will cause the linear module slider 15 to move, thereby moving the drilling component to the side of the center point and drilling an eccentric hole in the stainless steel pipe 7. Next, the operator adjusts the distance between the drilling knife 17 and the center of the rotating plate 16 according to the thickness or diameter of the stainless steel pipe 7. First, the operator starts the second servo motor 19. The rotation of the second servo motor 19 will cause the first threaded rod 20 to rotate. The rotation of the first threaded rod 20 will cause the second bevel gear 25 to rotate. The rotation of the second bevel gear 25 will cause the first bevel gear 24, the third bevel gear 26, and the fourth bevel gear 27 to rotate, which will respectively cause the second threaded rod 21, the third threaded rod 22, and the fourth threaded rod 23 to rotate. This achieves the simultaneous rotation of the first threaded rod 20, the second threaded rod 21, the third threaded rod 22, and the fourth threaded rod 23 when the second servo motor 19 is started, so that the four drilling knives 17 expand simultaneously, thereby adjusting the size of the hole.
[0029] Finally, the staff activated the telescopic cylinder 4 and the rotary motor 18. The telescopic cylinder 4 will bring the punching knife 17 into contact with the top of the stainless steel pipe 7, making it easier to punch a hole. The rotation of the rotary motor 18 will cause the punching knife 17 to rotate, and the cooperation with the telescopic cylinder 4 will realize the punching of the stainless steel pipe 7.
[0030] 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 device for rapid positioning and drilling of the center hole of a stainless steel pipe, comprising a base (1), characterized in that: Support rods (2) are fixedly connected to the four corners of the top of the base (1). A top plate (3) is fixedly connected to the top of the support rods (2). A telescopic cylinder (4) is fixedly connected to the top of the top plate (3). The telescopic end of the telescopic cylinder (4) passes through the top plate (3) and is located below the top plate (3). A fixing plate (13) is fixedly connected to the telescopic end of the telescopic cylinder (4). A linear module (14) is fixedly connected to the bottom of the fixing plate (13). A linear module slider (15) is slidably connected inside the linear module (14). A rotary motor (18) is fixedly connected inside the linear module slider (15). A drilling component for drilling holes in the stainless steel pipe (7) is provided at the output end of the rotary motor (18). A placement mechanism for positioning the stainless steel pipe (7) is provided at the top of the base (1).
2. The device for rapid positioning and drilling of the center hole of a stainless steel pipe according to claim 1, characterized in that: The punching assembly includes a rotating plate (16) fixedly connected to the output end of a rotary motor (18). The top of the rotating plate (16) is in contact with the bottom of a linear module slider (15). The bottom of the rotating plate (16) has four sliding grooves. A punching knife (17) is slidably connected inside the four sliding grooves. A driving component for simultaneously adjusting the position of the punching knife (17) is provided inside the four sliding grooves.
3. The device for rapid positioning and drilling of the center hole of a stainless steel pipe according to claim 2, characterized in that: The driving component includes a first threaded rod (20), a second threaded rod (21), a third threaded rod (22), and a fourth threaded rod (23) rotatably connected to different sliding grooves via bearings. The interiors of the first threaded rod (20), second threaded rod (21), third threaded rod (22), and fourth threaded rod (23) are threadedly connected to different punching tools (17). A second bevel gear (25) is fixedly sleeved at one end of the first threaded rod (20), and a first bevel gear (24) is meshed with the surface of the second bevel gear (25). A bevel gear (24) is fixedly sleeved on the surface of the second threaded rod (21). A fourth bevel gear (27) is meshed with the surface of the first bevel gear (24). The fourth bevel gear (27) is fixedly sleeved on the surface of the third threaded rod (22). A third bevel gear (26) is meshed with the surface of the fourth bevel gear (27). The third bevel gear (26) is fixedly sleeved on the surface of the fourth threaded rod (23). A second servo motor (19) is fixedly connected to one end of the first threaded rod (20) to the outer wall of the rotating plate (16).
4. The device for rapid positioning and drilling of the center hole of a stainless steel pipe according to claim 1, characterized in that: The placement mechanism includes a placement frame (5) fixedly connected to the top of the base (1). The top of the placement frame (5) is provided with a placement groove (6). A stainless steel tube (7) is placed on the surface of the placement groove (6). The top of the placement frame (5) is provided with a first sliding groove (9) and a second sliding groove (10). The inner wall of the second sliding groove (10) is rotatably connected to a bidirectional threaded rod (11) through a bearing. The two ends of the surface of the bidirectional threaded rod (11) are threadedly connected to a centering plate (8). The other end of the centering plate (8) is fitted and slidably connected inside the first sliding groove (9). The center of the centering plate (8) is slidably connected to the surface of the placement groove (6). The outer wall of the centering plate (8) is in contact with the outer wall of the stainless steel tube (7). One end of the bidirectional threaded rod (11) is fixedly connected to the outer wall of the placement frame (5) with a first servo motor (12).
5. The device for rapid positioning and drilling of the center hole of a stainless steel pipe according to claim 1, characterized in that: The base (1) has support columns fixedly connected to its four bottom corners.