A steel pressure vessel head forming and fixing device
By using a transmission structure driven by a dual-head motor and an electric cylinder, combined with internal and external clamping methods, the problems of unstable fixing and poor adaptability of traditional fixing devices are solved, achieving stable fixing and processing safety for end caps of different specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN HENGDA METAL STAMPING CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional steel pressure vessel head fixing devices suffer from poor fixing stability and difficulty in adapting to the shape and specifications of heads of different sizes.
The transmission structure consists of a threaded slider driven by a dual-head motor and an electric cylinder. Combined with internal and external clamping methods, the distance between the fixed clamping plates is adjusted by the screw and the internal threaded slider. The electric cylinder pushes the sliding clamping plate to adjust the distance, so as to achieve adaptive fitting to different end cap sizes and shapes. The clamping effect is enhanced by the elastic fixing pad.
It achieves stable fixing of heads of different specifications, improves the fixing firmness, avoids the need to replace special fixtures, and ensures stability and safety during the processing.
Smart Images
Figure CN224406977U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pressure vessel heads, and in particular to a steel pressure vessel head forming and fixing device. Background Technology
[0002] As an important component of pressure vessels, steel pressure vessel heads are pressure-bearing elements of hemispherical, elliptical, or dish-shaped shapes installed at the end of the pressure vessel to seal the internal space of the vessel. They play a crucial role in sealing and bearing pressure, and their quality and performance directly affect the safety and reliability of the entire pressure vessel. In the forming and processing of steel pressure vessel heads, drilling and cutting are essential key steps. These processing operations require the head to maintain a stable and fixed state during processing to ensure processing accuracy and the safety of operators.
[0003] However, there are many shortcomings in the current process of fixing steel pressure vessel heads. Traditional fixing devices usually use a single clamping method, which results in poor firmness after fixing the head and makes it difficult to adapt to different head specifications. Different head specifications require different fixing clamps, which will reduce the fixing speed of the head. To address these issues, we propose a steel pressure vessel head forming and fixing device. Summary of the Invention
[0004] The purpose of this invention is to provide a steel pressure vessel head forming and fixing device 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 steel pressure vessel head forming and fixing device includes a fixing platform, a head component on top of the fixing platform, two side fixing components on the outside of the fixing platform, a support cover fixedly connected to the bottom surface of the fixing platform, a double-head motor fixedly installed on the inner wall of the support cover, screws fixedly installed on both output ends of the double-head motor, internal threaded sliders threadedly connected to the outer surfaces of the two screws, and fixing clamps fixedly installed at the top ends of the two internal threaded sliders. Two transmission holes are opened on the upper surface of the fixing platform, and the outer surfaces of the two fixing clamps are slidably connected to the inner walls of the two transmission holes respectively. Each of the two side fixing components includes an electric cylinder fixedly installed on the outer surface of the support cover, and sliding clamps fixedly installed on the telescopic ends of the two electric cylinders. The head component is placed on the upper surface of the fixing platform.
[0007] In a further embodiment, two bearing seats are fixedly installed on the inner wall of the support cover, and the inner rings of the two bearing seats are respectively fixedly connected to the outer surface of one end of the two screws.
[0008] In a further embodiment, the upper surface of the fixed platform has two transmission sliding holes, the outer surface of the fixed platform has two telescopic sliding holes, the outer surfaces of the two sliding clamps are respectively slidably connected to the inner walls of the two transmission sliding holes, the inner walls of the two telescopic sliding holes are slidably connected to telescopic plates, and the sides of the two telescopic plates that are far apart from each other are respectively fixedly connected to the sides of the two sliding clamps that are close to each other.
[0009] In a further embodiment, each of the two fixed clamps has a sliding opening on one side, and a sliding plate is slidably connected to the inner wall of each of the two sliding openings. The left and right ends of the two sliding plates are respectively fixedly connected to the inner walls of the two transmission holes.
[0010] In a further embodiment, a first elastic fixing pad is fixedly connected to the side of the two fixed clamps that are far apart from each other, and a second elastic fixing pad is fixedly connected to the side of the two sliding clamps that are close to each other.
[0011] In a further embodiment, two sets of support seats are fixedly connected to the bottom surface of the fixed platform, and a controller is fixedly installed on the outer surface of one of the support seats.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This device, through a dual-head motor installed inside the support cover and a transmission structure consisting of a screw and an internally threaded slider, can flexibly adjust the distance between the two fixed clamping plates. The distance between the other two sliding clamping plates can be adjusted by the extension and retraction of two electric cylinders. This allows for adaptive fitting according to different sizes and shapes of the end caps, eliminating the need to change special clamps and making it suitable for various end cap specifications. This effectively solves the limitation of traditional devices that require matching different clamps. Furthermore, by using the fixed clamping plates and the first elastic fixing pad to clamp the inner wall of the end cap, and the electric cylinders to push the sliding clamping plates and the second elastic fixing pad to clamp the outer wall of the end cap, a double-clamping structure is formed. Compared to the traditional single clamping method, this enhances the fixing firmness and ensures the end cap remains stable during the forming process. Attached Figure Description
[0014] Figure 1 A three-dimensional structural diagram of the steel pressure vessel head forming and fixing device.
[0015] Figure 2 A frontal sectional view of the steel pressure vessel head forming and fixing device.
[0016] Figure 3 This is a side sectional view of the steel pressure vessel head forming and fixing device.
[0017] Figure 4 This is a top sectional view of the support cover in the forming and fixing device for the head of a steel pressure vessel.
[0018] Figure 5 This is a three-dimensional structural diagram of the fixing clamp in the forming and fixing device for steel pressure vessel heads, viewed from the front.
[0019] In the diagram: 1. Fixed platform; 2. End cap; 3. Side fixing component; 301. Electric cylinder; 302. Sliding clamp; 303. Second elastic fixing pad; 304. Telescopic sliding hole; 305. Telescopic plate; 4. Double-headed motor; 5. Screw; 6. Internal threaded slider; 7. Fixed clamp; 8. First elastic fixing pad; 9. Bearing seat; 10. Transmission hole; 11. Slide opening; 12. Slide plate; 13. Transmission sliding hole; 14. Support seat; 15. Controller; 16. Support cover. Detailed Implementation
[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0021] It should be noted that, in terms of circuit structure, drive and control circuits are common and mature technologies. Those skilled in the art can select appropriate circuit components to build the circuit according to the power requirements and control requirements of the equipment. For power supply components, common general power supply equipment on the market can be used, as long as the voltage and current requirements of the equipment are met. No special design is required. In addition, the electrical components in this application are all common electrical equipment in the prior art. This application will not elaborate on their models or internal structures.
[0022] 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.
[0023] Please see Figure 1-5 In this utility model, a steel pressure vessel head forming and fixing device includes a fixing platform 1, a head component 2 on top of the fixing platform 1, two side fixing components 3 on the outside of the fixing platform 1, a support cover 16 fixedly connected to the bottom surface of the fixing platform 1, a double-head motor 4 fixedly installed on the inner wall of the support cover 16, the double-head motor 4 being a servo motor, and screws 5 fixedly installed on both output ends of the double-head motor 4, with internally threaded sliders 6 threadedly connected to the outer surfaces of the two screws 5, the screws 5 and the internally threaded sliders 6 being of the same specifications, and fixing clamps 7 fixedly installed on the top ends of the two internally threaded sliders 6, with two transmission holes 10 on the upper surface of the fixing platform 1, and the two fixing clamps 7... The outer surface is slidably connected to the inner wall of the two transmission holes 10 respectively. Both side fixing parts 3 include electric cylinders 301 fixedly installed on the outer surface of the support cover 16. Sliding clamps 302 are fixedly installed on the telescopic ends of the two electric cylinders 301. The end cap 2 is placed on the upper surface of the fixing platform 1. Through the double-head motor 4 set inside the support cover 16, and the transmission structure composed of the screw 5 and the internal thread slider 6, the distance between the two fixing clamps 7 can be flexibly adjusted. In addition, the distance between the two sliding clamps 302 can be adjusted by the telescopic movement of the two electric cylinders 301. Then, it can adaptively fit according to the different sizes and shapes of the end cap 2 without changing the special clamps, and can be adapted to various specifications of end caps.
[0024] In a further embodiment, the upper surface of the fixed platform 1 has two transmission sliding holes 13, and the outer surface of the fixed platform 1 has two telescopic sliding holes 304. The outer surfaces of the two sliding clamps 302 are slidably connected to the inner walls of the two transmission sliding holes 13, and the inner walls of the two telescopic sliding holes 304 are slidably connected to telescopic plates 305. The side surfaces of the two telescopic plates 305 that are far apart from each other are fixedly connected to the side surfaces of the two sliding clamps 302 that are close to each other. Through the cooperation between the transmission sliding holes 13 and the sliding clamps 302, the movement of the sliding plates 302 can be guided, ensuring smooth sliding when the side fixing member 3 is clamped. The telescopic plates 305 that are slidably connected through the telescopic sliding holes 304 can assist in transmitting the movement of the sliding clamps 302, while enhancing structural stability and preventing the sliding clamps 302 from shifting.
[0025] In a further embodiment, the inner rings of the two bearing seats 9 are fixedly connected to the outer surfaces of one end of the two screws 5, and each of the two fixed clamping plates 7 has a sliding opening 11 on one side. Sliding plates 12 are slidably connected to the inner walls of the two sliding openings 11. The left and right ends of the two sliding plates 12 are fixedly connected to the inner walls of the two transmission holes 10, respectively. A first elastic fixing pad 8 is fixedly connected to the side of the two fixed clamping plates 7 that are far apart from each other, and a second elastic fixing pad 303 is fixedly connected to the side of the two sliding clamping plates 302 that are close to each other. Two sets of support seats 14 are fixedly connected to the bottom surface of the fixed platform 1, and the outer surface of one support seat 14 is fixed... The controller 15 is installed, and the bearing is set inside the support cover 16. The bearing and bearing seat 9 work together to provide stable support for the rotation of the screw 5, reducing rotational friction and shaking. In addition, the cooperation between the sliding mouth 11 and the sliding plate 12 further enhances the stability of the fixed clamp 7 when it moves left and right. Through the first elastic fixing pad 8 and the second elastic fixing pad 303, the friction with the end cap 2 can be increased through elastic deformation. This can protect the surface of the end cap from damage and adapt to the size difference of end caps of different specifications. The controller 15 is a PLC synchronous control device that can control the operation of the dual-head motor 4 and the two electric cylinders 301.
[0026] The working principle of this utility model is as follows: First, the end cap 2 is placed above the fixed platform 1. By starting the double-head motor 4, the two screws 5 can be driven to rotate. The two screws 5 are connected to the two internal threaded sliders 6 by threads, which can drive the fixed clamping plates 7 to move closer or further apart, thereby facilitating the adjustment of the distance between the two fixed clamping plates 7. This is suitable for fixing end caps 2 of different specifications. Then, by the two fixed clamping plates 7 moving closer together, the two first elastic fixing pads 8 can be made to fit against the inner wall of the end cap 2, thereby completing the initial internal fixing of the end cap 2.
[0027] Next, the controller 15 starts the two electric cylinders 301 of the side fixing member 3 to work. The telescopic ends of the two electric cylinders 301 push the sliding clamp 302. The two sliding clamps 302 slide along the transmission sliding hole 13, which can drive the two second elastic fixing pads 303 to contact the end cap 2 and apply pressure to achieve external fixation. In addition, by moving the sliding clamps 302 closer to each other or further away from each other, end caps 2 of different specifications can also be clamped and fixed.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A steel pressure vessel head forming and fixing device, characterized in that: The device includes a fixed platform (1), a headpiece (2) on top of the fixed platform (1), two side fixing parts (3) on the outside of the fixed platform (1), a support cover (16) fixedly connected to the bottom surface of the fixed platform (1), a double-head motor (4) fixedly installed on the inner wall of the support cover (16), screws (5) fixedly installed on the two output ends of the double-head motor (4), internal thread sliders (6) threadedly connected to the outer surfaces of the two screws (5), and fixed clamps (7) fixedly installed on the top ends of the two internal thread sliders (6). Two transmission holes (10) are opened on the upper surface of the fixed platform (1), and the outer surfaces of the two fixed clamps (7) are slidably connected to the inner walls of the two transmission holes (10) respectively. The two side fixing parts (3) each include an electric cylinder (301) fixedly installed on the outer surface of the support cover (16), and sliding clamps (302) fixedly installed on the telescopic ends of the two electric cylinders (301). The headpiece (2) is placed on the upper surface of the fixed platform (1).
2. The steel pressure vessel head forming and fixing device according to claim 1, characterized in that: The inner wall of the support cover (16) is fixedly installed with two bearing seats (9), and the inner rings of the two bearing seats (9) are respectively fixedly connected to the outer surface of one end of the two screws (5).
3. The steel pressure vessel head forming and fixing device according to claim 1, characterized in that: The upper surface of the fixed platform (1) has two transmission sliding holes (13), and the outer surface of the fixed platform (1) has two telescopic sliding holes (304). The outer surfaces of the two sliding clamps (302) are respectively slidably connected to the inner walls of the two transmission sliding holes (13).
4. The steel pressure vessel head forming and fixing device according to claim 1, characterized in that: Each of the two fixed clamps (7) has a sliding opening (11) on one side, and a sliding plate (12) is slidably connected to the inner wall of each of the two sliding openings (11). The left and right ends of the two sliding plates (12) are respectively fixedly connected to the inner wall of the two transmission holes (10).
5. The steel pressure vessel head forming and fixing device according to claim 3, characterized in that: The inner walls of the two telescopic sliding holes (304) are slidably connected with telescopic plates (305), and the two telescopic plates (305) are respectively fixedly connected to the two sliding clamps (302) on opposite sides.
6. The steel pressure vessel head forming and fixing device according to claim 1, characterized in that: The two fixed clamps (7) are fixedly connected to a first elastic fixing pad (8) on the side away from each other, and the two sliding clamps (302) are fixedly connected to a second elastic fixing pad (303) on the side close to each other.
7. The steel pressure vessel head forming and fixing device according to claim 1, characterized in that: Two sets of support seats (14) are fixedly connected to the bottom surface of the fixed platform (1), and a controller (15) is fixedly installed on the outer surface of one of the support seats (14).