Pressure vessel trepanning positioning device
By using a synchronous electric push rod to drive the arc-shaped clamping plate and rubber clamping pad, the problem of unstable clamping of pressure vessels in the prior art is solved, and stable positioning and drilling accuracy of pressure vessels are achieved.
Patent Information
- Application Number
- CN202520312054.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing technology cannot stably clamp pressure vessels of different specifications, resulting in inaccurate drilling points.
Three synchronous electric push rods drive the arc-shaped clamping plate to slide radially within the structural cylinder. Combined with rubber clamping pads and transverse convex strips to provide friction, and with the bottom support plate, stable clamping of the pressure vessel is achieved. The controller synchronously drives the clamping center to be positioned at the center of the circle.
It achieves stable clamping of pressure vessels of different specifications, ensures accurate drilling points, has a wide range of applications, and has a large clamping force, making it suitable for various pressure vessels.
Smart Images

Figure CN223833971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hole positioning devices, and in particular to a pressure vessel hole positioning device. Background Technology
[0002] A pressure vessel is a closed container that can withstand pressure and is used to hold gases or liquids. It has a wide range of applications in many fields, including industry, civil use, and military.
[0003] The invention patent with authorization announcement number CN116871555A discloses a positioning and opening device for a pressure vessel head, including a fixed bottom fixing plate, an upper fixing plate, and a right fixing plate, and a movable left moving plate; the left moving plate is disposed between the bottom fixing plate and the upper fixing plate and can move accordingly, and the area between the four plates is set as the processing area of the pressure vessel head. After the pressure vessel head is placed in the processing area, the left moving plate can press and fix the pressure vessel head accordingly.
[0004] In the aforementioned invention, the pressure vessel head needs to be clamped and fixed before drilling holes in the pressure vessel. The aforementioned patent cannot stably clamp pressure vessels of different specifications, making it difficult to maintain a stable and accurate drilling position. To solve the drawbacks of the above technology, we propose a pressure vessel hole positioning device. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pressure vessel opening positioning device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A pressure vessel opening positioning device includes a support platform, a structural cylinder on the upper side of the support platform, a pressure vessel placed inside the structural cylinder, a connecting plate fixedly connected between the side wall of the structural cylinder and the support platform, and a positioning mechanism on the structural cylinder. The positioning mechanism includes three synchronous electric push rods, the output ends of which slide through to the inside of the structural cylinder. An arc-shaped clamping plate is fixedly installed inside the output ends of the synchronous electric push rods, and a clamping pad is fixedly adhered to the inside of the arc-shaped clamping plate. Transverse protrusions are evenly distributed on the clamping pad. Side ear plates are symmetrically fixedly installed on both sides of the arc-shaped clamping plate, and a sliding rod is fixedly connected to the outside of the side ear plates, sliding through to the outside of the structural cylinder.
[0008] Furthermore, a bottom support plate is fixedly installed at the bottom of the arc-shaped clamp.
[0009] Furthermore, the clamping pad is made of rubber.
[0010] Furthermore, a connecting rod is symmetrically fixedly connected to the side wall of the synchronous electric push rod, and an arc-shaped connecting plate is fixedly connected to the end of the connecting rod. The arc-shaped connecting plate is fixedly connected to the outer wall of the structural cylinder.
[0011] Furthermore, the connecting plates are arranged in a Z-shape and are equidistantly distributed along the circumference of the outer wall of the structural cylinder.
[0012] Furthermore, a number of legs are equidistantly installed around the bottom circumference of the support platform, and a controller is fixedly installed on the side of the support platform.
[0013] Furthermore, an electric telescopic rod is fixedly installed at the center of the bottom of the platform, and the output end of the electric telescopic rod slides through to the upper side of the platform, with a lifting platform fixedly installed on the upper side of the output end of the electric telescopic rod.
[0014] Furthermore, a high-speed motor is fixedly installed on the upper side of the lifting platform, and a drill bit is fixedly installed on the output end of the high-speed motor.
[0015] Compared with related technologies, the pressure vessel opening positioning device proposed in this utility model has the following beneficial effects:
[0016] In this utility model, a pressure vessel opening positioning device is provided. Through a positioning mechanism, three synchronous electric push rods push the inner end of an arc-shaped clamping plate to slide radially within the structural cylinder. A clamping pad is adhered to the inner surface of the arc-shaped clamping plate, and transverse protrusions are evenly distributed in the vertical direction on the inner surface of the clamping pad. This allows the clamping pad to generate significant friction against the side wall of the pressure vessel after clamping and abutting, ensuring the pressure vessel is stably clamped inside the structural cylinder. The three synchronous electric push rods are synchronously driven by a controller, enabling the clamping of the three sets of clamping plates... The center is always located at the center of the structural cylinder, thus ensuring precise positioning of the center point of the clamped pressure vessel and facilitating accurate positioning during subsequent drilling. In addition, the radial sliding amount of the clamping plate inside the structural cylinder can be controlled by adjusting the extension and retraction of the synchronous electric push rod, making it suitable for clamping pressure vessels of different specifications. This expands its applicability and enhances its practicality. Furthermore, a bottom support plate is provided at the bottom of the clamping plate, which facilitates the placement of the pressure vessel at its bottom before clamping, ensuring a relatively fixed bottom position after stable clamping, thereby ensuring precise positioning of the clamping point in the height direction of the pressure vessel. Attached Figure Description
[0017] Figure 1 A three-dimensional structural diagram of a pressure vessel opening positioning device proposed in this utility model. Figure 1 ;
[0018] Figure 2 A three-dimensional structural diagram of a pressure vessel opening positioning device proposed in this utility model. Figure 2 ;
[0019] Figure 3 This is a partial three-dimensional structural diagram of a pressure vessel opening positioning device proposed in this utility model;
[0020] Figure 4 This is a partial three-dimensional disassembly diagram of a pressure vessel opening positioning device proposed in this utility model;
[0021] Figure 5 Schematic diagram of the three-dimensional structure of the positioning mechanism Figure 1 ;
[0022] Figure 6 Schematic diagram of the three-dimensional structure of the positioning mechanism Figure 2 .
[0023] In the diagram: 1. Support platform; 2. Support leg; 3. Controller; 4. Electric telescopic rod; 5. Lifting platform; 6. High-speed motor; 7. Drill bit; 8. Structural cylinder; 9. Positioning mechanism; 91. Synchronous electric push rod; 92. Connecting rod; 93. Arc-shaped connecting plate; 94. Arc-shaped clamping plate; 95. Clamping pad; 96. Transverse convex strip; 97. Bottom support plate; 98. Side ear plate; 99. Slide rod; 10. Connecting plate; 11. Pressure vessel. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Reference Figure 1-6 A pressure vessel opening positioning device includes a base 1, a structural cylinder 8 on the upper side of the base 1, a pressure vessel 11 placed inside the structural cylinder 8, a connecting plate 10 fixedly connected between the side wall of the structural cylinder 8 and the base 1, and a positioning mechanism 9 on the structural cylinder 8. The positioning mechanism 9 includes three synchronous electric push rods 91, the output ends of the synchronous electric push rods 91 sliding through to the inside of the structural cylinder 8, an arc-shaped clamping plate 94 fixedly installed inside the output ends of the synchronous electric push rods 91, a clamping pad 95 fixedly bonded to the inside of the arc-shaped clamping plate 94, transverse protrusions 96 evenly distributed on the clamping pad 95, side ear plates 98 symmetrically fixedly installed on both sides of the arc-shaped clamping plate 94, and a sliding rod 99 fixedly connected to the outside of the side ear plate 98, the sliding rod 99 sliding through to the outside of the structural cylinder 8.
[0026] With the above-described configuration, the sliding rod 99 allows the arc-shaped clamping plate 94 to slide and intersect inside and outside the structural cylinder 8 when driven by the synchronous electric push rod 91. This provides a stable guiding effect for the arc-shaped clamping plate 94, enabling it to slide radially within the structural cylinder 8. This facilitates a stable clamping force on the side wall of the pressure vessel 11. Furthermore, the arc-shaped clamping plate 94 in this invention has a small curvature and is designed with a micro-arc. Its inner clamping pad 95 has a certain adaptive deformation capability, allowing it to conform to the outer wall of pressure vessels 11 of different specifications, thus ensuring a stable clamping effect. The transverse convex strip 96 increases the vertical friction of the clamping pad 95, which is used to resist the upward drilling pressure generated during drilling operations.
[0027] In this method, an electric telescopic rod 4 is fixedly installed at the center of the bottom of the support platform 1. The output end of the electric telescopic rod 4 slides through to the upper side of the support platform 1, and a lifting platform 5 is fixedly installed on the upper side of the output end of the electric telescopic rod 4. A high-speed motor 6 is fixedly installed on the upper side of the lifting platform 5, and a drill bit 7 is fixedly installed on the output end of the high-speed motor 6.
[0028] With the above-mentioned setup, when the electric telescopic rod 4 is started, it can drive the lifting platform 5 to move upward, thereby driving the drill bit 7 to gradually approach the bottom of the pressure vessel 11 for drilling operations.
[0029] In this method, a bottom support plate 97 is fixedly installed at the bottom of the arc-shaped clamp 94.
[0030] With the above-described configuration, the bottom support plate 97 facilitates the placement of the pressure vessel 11 at its bottom before clamping, ensuring that the height of the bottom surface after clamping is exactly the height of the upper side of the bottom support plate 97, thus fixing the position of the pressure vessel 11 in the height direction after clamping.
[0031] In this method, the clamping pad 95 is made of rubber.
[0032] With the above-mentioned configuration, the clamping pad 95 is made of rubber, which can provide stable friction. At the same time, the rubber material has a certain deformation, which allows it to stably adhere to the outer wall of the pressure vessel 11.
[0033] In this method, a connecting rod 92 is symmetrically fixedly connected to the side wall of the synchronous electric push rod 91, and an arc-shaped connecting plate 93 is fixedly connected to the end of the connecting rod 92. The arc-shaped connecting plate 93 is fixedly connected to the outer wall of the structural cylinder 8.
[0034] Through the above-described configuration, the structural design of the arc-shaped connecting plate 93 and the connecting rod 92 provides stable lateral connection support for the synchronous electric push rod 91.
[0035] In this configuration, the connecting plates 10 are arranged in a Z-shape and are equidistantly distributed along the outer circumference of the structural cylinder 8.
[0036] Through the above-described configuration, the connecting plate 10 provides stable support and connection for the structural cylinder 8.
[0037] In this method, several legs 2 are installed at equal intervals around the bottom circumference of the foundation 1, and a controller 3 is fixedly installed on the side of the foundation 1.
[0038] With the above-described configuration, controller 3 is used to control the operating status of each electrical component, facilitating operation and adjustment during processing.
[0039] The working principle of the pressure vessel opening positioning device provided by this utility model is as follows:
[0040] In use, according to the outer diameter specifications of the pressure vessel 11, the controller 3 controls the synchronous electric push rod 91 to drive the inner arc-shaped clamping plate 94 to slide, so that the clamping range of the inner side of the arc-shaped clamping plate 94 is slightly larger than the outer diameter of the pressure vessel 11. Then, the pressure vessel 11 is placed into the structural cylinder 8, so that its bottom is placed on the bottom support plate 97 at the bottom of the arc-shaped clamping plate 94. Then, the three synchronous electric push rods 91 are started to drive the inner arc-shaped clamping plate 94 to slide radially towards the center of the structural cylinder 8, so that the clamping pad 95 on the inner side of the arc-shaped clamping plate 94 stably clamps the pressure vessel 11 inside. At this time, the pressure vessel 11 is positioned, clamped and fixed firmly. Then, the electric telescopic rod 4 and the high-speed motor 6 are started synchronously. The high-speed motor 6 drives the drill bit 7 on its output end to rotate at high speed. The electric telescopic rod 4 drives the lifting platform 5 to move upward, thereby driving the high-speed rotating drill bit 7 to approach the bottom of the pressure vessel 11 to be drilled, and to carry out the drilling work.
[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A pressure vessel opening positioning device, characterized in that, Includes a base (1), a structural cylinder (8) is provided on the upper side of the base (1), a pressure vessel (11) is placed inside the structural cylinder (8), a connecting plate (10) is fixedly connected between the side wall of the structural cylinder (8) and the base (1), and a positioning mechanism (9) is provided on the structural cylinder (8); The positioning mechanism (9) includes three synchronous electric push rods (91). The output end of the synchronous electric push rod (91) slides through to the inside of the structural cylinder (8). An arc-shaped clamping plate (94) is fixedly installed on the inside of the output end of the synchronous electric push rod (91). A clamping pad (95) is fixedly bonded to the inside of the arc-shaped clamping plate (94). Transverse protrusions (96) are evenly distributed on the clamping pad (95). Side ear plates (98) are symmetrically fixedly installed on both sides of the arc-shaped clamping plate (94). A slide rod (99) is fixedly connected to the outside of the side ear plate (98). The slide rod (99) slides through to the outside of the structural cylinder (8).
2. The pressure vessel opening positioning device according to claim 1, characterized in that, The bottom of the arc-shaped clamp (94) is fixedly installed with a bottom support plate (97).
3. The pressure vessel opening positioning device according to claim 1, characterized in that, The clamping pad (95) is made of rubber.
4. The pressure vessel opening positioning device according to claim 1, characterized in that, The synchronous electric push rod (91) is symmetrically fixedly connected to a connecting rod (92) on its side wall. The end of the connecting rod (92) is fixedly connected to an arc-shaped connecting plate (93), and the arc-shaped connecting plate (93) is fixedly connected to the outer wall of the structural cylinder (8).
5. A pressure vessel opening positioning device according to claim 1, characterized in that, The connecting plate (10) is arranged in a Z-shape and the connecting plate (10) is distributed at equal intervals along the outer circumference of the structural cylinder (8).
6. The pressure vessel opening positioning device according to claim 1, characterized in that, The base (1) has several legs (2) installed at equal intervals around its bottom circumference, and a controller (3) is fixedly installed on the side of the base (1).
7. The pressure vessel opening positioning device according to claim 1, characterized in that, An electric telescopic rod (4) is fixedly installed at the center of the bottom of the support platform (1). The output end of the electric telescopic rod (4) slides through to the upper side of the support platform (1), and a lifting platform (5) is fixedly installed on the upper side of the output end of the electric telescopic rod (4).
8. A pressure vessel opening positioning device according to claim 7, characterized in that, A high-speed motor (6) is fixedly installed on the upper side of the lifting platform (5), and a drill bit (7) is fixedly installed on the output end of the high-speed motor (6).
Citation Information
Patent Citations
Positioning and trepanning device for end socket of pressure vessel
CN116871555A