A metal pipe anti-rolling drilling device

Through the design of the fixing mechanism and auxiliary mechanism, adaptive clamping of metal tubes of different sizes and shapes is achieved, which solves the problems of narrow applicability and poor stability of existing drilling devices, and improves processing accuracy and safety.

CN224359785UActive Publication Date: 2026-06-16WUXI LONGTENG STEEL STRUCTURE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI LONGTENG STEEL STRUCTURE CO LTD
Filing Date
2025-08-18
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing drilling equipment is difficult to adapt to the clamping and positioning of metal tubes with different diameters or irregular cross-sections, resulting in low clamping efficiency, narrow applicability, and poor processing stability. In particular, the metal tubes are prone to rolling or shifting during processing, affecting accuracy and equipment safety.

Method used

It employs a fixed mechanism and an auxiliary mechanism, including a driving gear, a driven gear ring, an internal gear, a mating gear, and a connecting rod. Driven by a servo motor, it achieves multi-point synchronous driving and adaptive clamping. Combined with elastic blocks and guide plates, it ensures the fit and uniformity of clamping, preventing deviation and jamming.

Benefits of technology

It improves the clamping adaptability and processing stability of metal tubes, ensures drilling accuracy and equipment safety, and is suitable for metal tubes of various specifications and shapes, reducing the problems of metal tube deformation and clamping instability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224359785U_ABST
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Abstract

The utility model relates to metal pipe processing technical field, the utility model discloses a kind of metal pipe anti-rolling drilling device, including drilling machine, support frame and servo motor, the rear end of drilling machine is provided with support frame, the upper end of support frame is provided with servo motor.The utility model is fixed mechanism and auxiliary mechanism by being set, fixed mechanism is used to the clamping fixation of different sizes metal pipe, auxiliary mechanism is used to further processing operation, in the metal pipe processing process, drilling is a common and key process operation, especially in the application scene that needs to realize accurate assembly or fluid transmission, high-quality drilling is particularly important to metal pipe end or pipe wall, however, in actual processing process, since metal pipe has hollow structure and lower radial rigidity, it is easy to roll or deviate when drilling, not only affect processing accuracy, also possibly cause equipment damage or security risk problem.
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Description

Technical Field

[0001] This utility model belongs to the field of metal pipe processing technology, and in particular relates to a metal pipe anti-rolling drilling device. Background Technology

[0002] Metal pipes are long, tubular structures with hollow cross-sections made of metal materials. They are widely used in construction, machinery, chemical, energy, transportation and other fields for transporting fluids, transmitting energy, supporting structures or as mechanical components. They have good strength, corrosion resistance, thermal conductivity and machinability. Different materials (such as carbon steel, stainless steel, copper, aluminum, etc.) and manufacturing processes (such as seamless extrusion, welding, casting, etc.) can be selected according to the application requirements. They have various specifications and flexible connection methods, which can meet the functional requirements of various complex working conditions.

[0003] Existing metal tube processing requires a drilling device suitable for various specifications and shapes to prevent rolling of metal tubes. The problem with the above technologies is that drilling is a common and critical process in metal tube processing, especially in applications requiring precise assembly or fluid transmission. High-quality drilling of the ends or walls of metal tubes is particularly important. However, in actual processing, due to the hollow structure and low radial rigidity of metal tubes, they are prone to rolling or displacement during drilling, which not only affects processing accuracy but may also cause equipment damage or safety hazards. Most existing drilling devices are designed for specific specifications of metal tubes and are difficult to adapt to the clamping and positioning requirements of tubes with different diameters or irregular cross-sections, resulting in problems such as low clamping efficiency, narrow applicability, and poor processing stability. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a metal pipe anti-rolling drilling device that can overcome or at least partially solve the above problems.

[0005] This utility model is implemented as follows: a metal pipe anti-rolling drilling device includes a drilling machine, a support frame and a servo motor. The support frame is provided at the rear end of the drilling machine, the servo motor is provided at the upper end of the support frame, a fixing mechanism is provided inside the support frame, and an auxiliary mechanism is provided on the fixing mechanism.

[0006] The fixing mechanism is used to clamp and fix metal tubes of different sizes;

[0007] The auxiliary mechanism is used for further processing operations.

[0008] To improve the adaptability of the device, preferably, the fixing mechanism includes a driving gear, a driven gear ring, an internal gear, a mating gear, and a connecting rod. The tooth surface of the driving gear meshes with the tooth surface of the driven gear ring, the inner surface of the driven gear ring is fixedly connected to the surface of the internal gear, the tooth surface of the internal gear meshes with the tooth surface of the mating gear, and the inner wall of the mating gear is fixedly connected to the upper end of the connecting rod. The meshing between the driving gear and the driven gear ring enables smooth power transmission and ensures that the rotational motion of the servo motor output shaft is converted into the rotational motion of the driven gear ring. Since the driven gear ring is fixedly connected to the internal gear, the internal gear can rotate synchronously, thereby driving multiple mating gears to work together, realizing the function of multi-point synchronous drive.

[0009] To improve the flexibility of clamping metal tubes, the auxiliary mechanism preferably includes a contact plate, a clamping plate, an elastic block, and a fixing plate. The surface of the contact plate is fixedly connected to the rear surface of the clamping plate, the inner wall of the clamping plate is fixedly connected to the surface of the elastic block, and the surface of the elastic block is fixedly connected to the surface of the fixing plate. During clamping, the fixing plate first contacts the outer wall of the metal tube. Under the action of contact pressure, the elastic block deforms, causing the fixing plate to contract inward towards the clamping plate. This allows the clamping plate to gradually conform to the shape of the metal tube and fit its surface, thereby achieving effective clamping of metal tubes of different shapes and sizes. This not only improves the fit and uniformity of clamping but also effectively avoids the problem of metal tube deformation or unstable clamping caused by uneven clamping force.

[0010] To improve the smoothness of the mechanism's operation, preferably, a guide plate is provided on the surface of the driven gear ring, a travel plate is provided on the surface of the guide plate, a limit rod is provided on the inner wall of the travel plate, the surface of the guide plate is fixedly connected to the surface of the travel plate, and the surface of the travel plate is slidably connected to the surface of the limit rod through a sliding groove. By providing a travel plate on the guide plate and opening a sliding groove in the travel plate, the auxiliary mechanism can move stably along a preset trajectory during the driving process, thereby effectively ensuring the synchronization and directionality of the clamping action. Moreover, the sliding groove not only plays a good guiding and limiting role in the rotation and extension of the connecting rod, but also prevents deviation or jamming during the clamping process.

[0011] To improve the stability of the driven gear ring operation, preferably, the output end of the servo motor is fixedly connected to the inner wall of the driving gear, the inner wall of the connecting rod is rotatably connected to the inner wall of the guide plate via a rotating shaft, the surface of the driven gear ring is rotatably connected to the inner wall of the guide plate via a sliding groove, and the inner wall of the connecting rod is slidably connected to the surface of the limiting rod via a sliding groove. The driven gear ring and the guide plate rotate through the sliding groove, which not only provides stable support for the driven gear ring, but also ensures its axial positioning accuracy during rotation, preventing the meshing transmission performance between gears from being affected by offset or shaking.

[0012] To improve operational efficiency, preferably, the surface of the fixing plate is slidably connected to the inner wall of the clamping plate through a sliding groove, and the surface of the contact plate is in contact with the inner surface of the guide plate. The contact plate provides auxiliary positioning and support for the clamping plate, ensuring the stability of the position when the guide plate and the clamping plate are in contact.

[0013] To improve the reliability of clamping, preferably, the lower end of the connecting rod is rotatably connected to the inner wall of the clamping plate via a rotating shaft, the surface of the guide plate is fixedly connected to the surface of the support frame, and the surface of the servo motor is fixedly connected to the upper end of the guide plate. The rotating shaft allows the clamping plate to have a certain degree of rotational freedom under the drive of the connecting rod, enabling it to adaptively adjust according to the actual shape of the outer wall of the metal tube, ensuring that the clamping plate maintains a good fit with the surface of the metal tube. This is especially suitable for clamping and positioning metal tubes with irregular cross-sections or shapes.

[0014] This utility model comprises a fixing mechanism, an auxiliary mechanism, a driving gear, a driven gear ring, an internal gear, mating gears, a connecting rod, a clamping plate, an elastic block, and a fixed plate. The fixing mechanism is used to clamp and fix metal tubes of different sizes. The auxiliary mechanism is used for further processing operations. The driving gear and the driven gear ring mesh to achieve smooth power transmission and ensure that the rotational motion of the servo motor output shaft is converted into the rotational motion of the driven gear ring. Since the driven gear ring is fixedly connected to the internal gear, the internal gear can rotate synchronously, thereby driving multiple mating gears to drive in linkage, realizing the function of multi-point synchronous drive. During the clamping process, the fixed plate first contacts the outer wall of the metal tube. Under the action of contact pressure, the elastic block... The deformation causes the fixing plate to contract inwards towards the clamping plate, allowing the clamping plate to gradually conform to the shape of the metal tube and fit its surface. This enables effective clamping of metal tubes of different shapes and sizes, improving not only the fit and uniformity of the clamping but also effectively avoiding the problem of metal tube deformation or clamping instability caused by uneven clamping force. It solves the problem that drilling is a key process in metal tube processing, especially crucial for precise assembly or fluid transmission. However, the hollow structure and low radial rigidity of metal tubes make them prone to rolling or shifting during drilling, affecting accuracy and equipment safety. Existing drilling devices are mostly designed for specific metal tubes and are difficult to adapt to tubes of different diameters or irregular cross-sections, resulting in low clamping efficiency, narrow applicability, and poor processing stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the main body in a vertical cross-section provided in an embodiment of this utility model;

[0017] Figure 3This is a three-dimensional structural diagram of the fixing mechanism provided in an embodiment of the present utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the auxiliary mechanism provided in an embodiment of this utility model.

[0019] In the diagram: 1. Fixing mechanism; 101. Driving gear; 102. Driven gear ring; 103. Internal gear; 104. Matching gear; 105. Connecting rod; 2. Auxiliary mechanism; 201. Contact plate; 202. Clamping plate; 203. Elastic block; 204. Fixing plate; 3. Guide plate; 4. Stroke plate; 5. Limiting rod; 6. Drilling machine; 7. Support frame; 8. Servo motor. Detailed Implementation

[0020] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0021] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1 to 4As shown in the figure, the present invention provides a metal tube anti-rolling drilling device, including a drilling machine 6, a support frame 7, and a servo motor 8. The support frame 7 is provided at the rear end of the drilling machine 6, and the servo motor 8 is provided at the upper end of the support frame 7. A fixing mechanism 1 is provided inside the support frame 7, and an auxiliary mechanism 2 is provided on the fixing mechanism 1. The fixing mechanism 1 is used to clamp and fix metal tubes of different sizes, and the auxiliary mechanism 2 is used for further processing operations. The fixing mechanism 1 includes a driving gear 101, a driven gear ring 102, an internal gear 103, a mating gear 104, and a connecting rod 105. The tooth surface of the driving gear 101 meshes with the tooth surface of the driven gear ring 102, and the inner surface of the driven gear ring 102 is fixedly connected to the surface of the internal gear 103. The teeth of the internal gear 103 are... The drive gear 101 meshes with the tooth surface of the mating gear 104, and the inner wall of the mating gear 104 is fixedly connected to the upper end of the connecting rod 105. The drive gear 101 meshes with the driven gear ring 102, which can realize the smooth transmission of power and ensure that the rotational motion of the output shaft of the servo motor 8 is converted into the rotational motion of the driven gear ring 102. Since the driven gear ring 102 is fixedly connected to the internal gear 103, the internal gear 103 can rotate synchronously, thereby driving multiple mating gears 104 to move in linkage, realizing the function of multi-point synchronous drive. The auxiliary mechanism 2 includes a contact plate 201, a clamping plate 202, an elastic block 203 and a fixed plate 204. The surface of the contact plate 201 is fixedly connected to the rear surface of the clamping plate 202, and the inner wall of the clamping plate 202 is fixedly connected to the surface of the elastic block 203. The elastic block 203 is fixedly connected to the surface of the fixed plate 204. During the clamping process, the fixed plate 204 first contacts the outer wall of the metal tube. Under the contact pressure, the elastic block 203 deforms, causing the fixed plate 204 to contract inward towards the clamping plate 202. This allows the clamping plate 202 to gradually conform to the shape of the metal tube and fit its surface, thereby achieving effective clamping of metal tubes of different shapes and sizes. This not only improves the fit and uniformity of the clamping but also effectively avoids the problem of metal tube deformation or clamping instability caused by uneven clamping force. The driven toothed ring 102 is provided with a guide plate 3, and the guide plate 3 is provided with a travel plate 4. The inner wall of the travel plate 4 is provided with a limit rod 5. The surface of the guide plate 3 is fixedly connected to the surface of the travel plate 4. The surface of the stroke plate 4 and the surface of the limit rod 5 are slidably connected by a groove. By setting the stroke plate 4 on the guide plate 3 and opening a groove in the stroke plate 4, the auxiliary mechanism 2 can move stably along a preset trajectory during the driving process, thereby effectively ensuring the synchronization and directionality of the clamping action. In addition, the groove not only plays a good guiding and limiting role in the rotation and extension of the connecting rod 105, but also prevents deviation or jamming during the clamping process. The output end of the servo motor 8 is fixedly connected to the inner wall of the drive gear 101. The inner wall of the connecting rod 105 is rotatably connected to the inner wall of the guide plate 3 through a rotating shaft. The surface of the driven gear ring 102 is rotatably connected to the inner wall of the guide plate 3 through a groove. The inner wall of the connecting rod 105 is slidably connected to the surface of the limit rod 5 through a groove.The driven gear ring 102 rotates with the guide plate 3 via a sliding groove, which not only provides stable support for the driven gear ring 102 but also ensures its axial positioning accuracy during rotation, preventing the meshing transmission performance between gears from being affected by offset or wobbling. The surface of the fixed plate 204 is slidably connected to the inner wall of the clamping plate 202 via a sliding groove, and the surface of the contact plate 201 contacts the inner surface of the guide plate 3. The contact plate 201 provides auxiliary positioning and support for the clamping plate 202, ensuring that the guide plate 3 and the clamping plate 202 are in contact. For positional stability, the lower end of the connecting rod 105 is rotatably connected to the inner wall of the clamping plate 202 via a rotating shaft. The surface of the guide plate 3 is fixedly connected to the surface of the support frame 7, and the surface of the servo motor 8 is fixedly connected to the upper end of the guide plate 3. The rotating shaft allows the clamping plate 202 to have a certain degree of rotational freedom under the drive of the connecting rod 105, enabling adaptive adjustment according to the actual shape of the outer wall of the metal tube. This ensures a good fit between the clamping plate 202 and the surface of the metal tube, making it particularly suitable for clamping and positioning metal tubes with irregular cross-sections or shapes.

[0023] Before drilling the metal tube, it needs to be securely clamped and positioned to ensure processing accuracy and safety. Therefore, the metal tube to be processed is first placed inside the guide plate 3, with its lower surface contacting the fixing plate 204 on the clamping plate 202 inside the guide plate 3, thus achieving initial positioning. Then, the servo motor 8 mounted on the upper end of the guide plate 3 is started. The motor output shaft drives the drive gear 101 to rotate. This drive gear 101 meshes with the driven gear ring 102 inside the guide plate 3, thereby driving the internal gear ring fixedly connected to it. Gear 103 rotates within the guide plate 3 via a sliding groove. When the internal gear 103 rotates, it simultaneously meshes with four mating gears 104 arranged in the guide plate 3, causing these four mating gears 104 to rotate accordingly. The rotation of the mating gears 104 further drives the connecting rod 105 connected to it to rotate. The surface of the connecting rod 105 is provided with a limiting rod 5, which moves along the sliding groove in the stroke plate 4, thereby guiding the connecting rod 105 to rotate around the center of the stroke plate 4. As the connecting rod 105 rotates, the clamping plate 20 connected to its end... 2. Gradually extending outwards and approaching the outer surface of the metal tube, the clamping plate 202's internal fixing plate 204 first contacts the metal tube surface as it approaches the tube. Due to the pressure exerted on the fixing plate 204 by the outer wall of the metal tube, the fixing plate 204 retracts into the clamping plate 202 under this force, ensuring the clamping plate 202 completely conforms to the metal tube surface, guaranteeing clamping stability and uniformity. Furthermore, the clamping plate 202 is connected to the connecting rod 105 via a pivot shaft. During contact, the clamping plate 202 can adjust its position according to the metal tube's... The actual shape is adaptively rotated to effectively adapt to metal tubes with different cross-sectional shapes, thereby improving the applicability of clamping. The entire clamping process can be controlled by adjusting the rotation angle of the servo motor 8 to control the rotation amount of the drive gear 101, thereby controlling the extension length of the connecting rod 105, so as to achieve reliable clamping of metal tubes of different sizes. After clamping is completed, the drilling equipment can be started to perform drilling operations. After drilling is completed, simply control the servo motor 8 to rotate in the opposite direction to gradually loosen the metal tube by the clamping mechanism, so as to facilitate the removal of the workpiece and prepare for the clamping of the next workpiece.

[0024] The specific models and specifications of the drilling machine 6, servo motor 8, driving gear 101, driven gear ring 102, internal gear 103, mating gear 104, and elastic block 203 proposed in this application need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0025] The wiring connection method and control method of the drilling machine 6 and servo motor 8 proposed in this application are all existing technologies in this field, and therefore will not be described in detail.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.

Claims

1. A metal pipe anti-rolling drilling device, comprising a drilling machine (6), a support frame (7), and a servo motor (8), wherein the support frame (7) is provided at the rear end of the drilling machine (6), and the servo motor (8) is provided at the upper end of the support frame (7), characterized in that: The support frame (7) is provided with a fixing mechanism (1), and the fixing mechanism (1) is provided with an auxiliary mechanism (2). The fixing mechanism (1) is used to clamp and fix metal tubes of different sizes; The auxiliary mechanism (2) is used for further processing operations.

2. The anti-rolling drilling device for metal pipes as described in claim 1, characterized in that: The fixing mechanism (1) includes a driving gear (101), a driven gear ring (102), an internal gear (103), a mating gear (104), and a connecting rod (105). The tooth surface of the driving gear (101) meshes with the tooth surface of the driven gear ring (102). The inner surface of the driven gear ring (102) is fixedly connected to the surface of the internal gear (103). The tooth surface of the internal gear (103) meshes with the tooth surface of the mating gear (104). The inner wall of the mating gear (104) is fixedly connected to the upper end of the connecting rod (105).

3. The anti-rolling drilling device for metal pipes as described in claim 2, characterized in that: The auxiliary mechanism (2) includes a contact plate (201), a clamping plate (202), an elastic block (203), and a fixing plate (204). The surface of the contact plate (201) is fixedly connected to the rear surface of the clamping plate (202), the inner wall of the clamping plate (202) is fixedly connected to the surface of the elastic block (203), and the surface of the elastic block (203) is fixedly connected to the surface of the fixing plate (204).

4. The anti-rolling drilling device for metal pipes as described in claim 3, characterized in that: The driven gear ring (102) is provided with a guide plate (3), the guide plate (3) is provided with a travel plate (4), the inner wall of the travel plate (4) is provided with a limit rod (5), the surface of the guide plate (3) is fixedly connected to the surface of the travel plate (4), and the surface of the travel plate (4) is slidably connected to the surface of the limit rod (5) through a groove.

5. The anti-rolling drilling device for metal pipes as described in claim 4, characterized in that: The output end of the servo motor (8) is fixedly connected to the inner wall of the drive gear (101), the inner wall of the connecting rod (105) is rotatably connected to the inner wall of the guide plate (3) through a rotating shaft, the surface of the driven gear ring (102) is rotatably connected to the inner wall of the guide plate (3) through a sliding groove, and the inner wall of the connecting rod (105) is slidably connected to the surface of the limiting rod (5) through a sliding groove.

6. The anti-rolling drilling device for metal pipes as described in claim 4, characterized in that: The surface of the fixing plate (204) is slidably connected to the inner wall of the clamping plate (202) through a groove, and the surface of the contact plate (201) is in contact with the inner surface of the guide plate (3).

7. The anti-rolling drilling device for metal pipes as described in claim 4, characterized in that: The lower end of the connecting rod (105) is rotatably connected to the inner wall of the clamping plate (202) via a rotating shaft, the surface of the guide plate (3) is fixedly connected to the surface of the support frame (7), and the surface of the servo motor (8) is fixedly connected to the upper end of the guide plate (3).