A shape control auxiliary device for box bottom forming

Abstract

This utility model discloses a shape control auxiliary device for box bottom forming, belonging to the technical field of box bottom forming auxiliary devices. It includes an auxiliary frame, a positioning mechanism, and an internal support mechanism. The auxiliary frame includes a concentrically arranged fixed ring and a fixed plate. Multiple evenly distributed support rods are fixedly connected between the fixed ring and the fixed plate. The positioning mechanism includes a slider slidably installed within the support rods and a positioning mold fixedly installed on the top of the slider. A connecting rod is fixedly connected to one side of the slider, and one end of the connecting rod slides through into the fixed plate. A driving component for driving the connecting rod to slide is provided inside the fixed plate. The internal support mechanism is located on the fixed plate. Through the positioning mechanism, the box bottom components can be assisted in positioning during box forming. When dealing with box bottoms of different sizes, the positions of all positioning molds can be flexibly adjusted, making it convenient to use.

Description

Technical Field

[0001] This utility model belongs to the technical field of box bottom forming auxiliary devices, specifically relating to a shape control auxiliary device for box bottom forming. Background Technology

[0002] The fuel tank is a component in a rocket that stores fuel, accounting for more than 50% of the rocket's structural weight and space. It is welded together from the tank bottom, cylindrical section, short shell, and other components. Among these, the tank bottom is a key structural component and also one of the most challenging to develop. Currently, the main tank bottom diameters are 2.25m, 3.35m, and 5m. Traditionally, the tank bottom was welded together from multiple segments and a top cover. However, with the continuous development of equipment and processes, in order to improve the reliability of the tank bottom and reduce the number of main welds, the tank bottom forming technology has gradually shifted from segment welding to integral spinning forming.

[0003] After the integral tank bottom component of a large storage tank is spun, it needs to be heat treated. Considering the structural characteristics of the ellipsoidal tank bottom component, a shape control auxiliary device is required to assist in positioning the tank bottom during the forming process to reduce the deformation problem. However, most of the existing shape control auxiliary devices are not convenient to adjust, and they are not flexible enough and inconvenient to use when dealing with tank bottoms of different sizes. Utility Model Content

[0004] The purpose of this invention is to provide a shape control auxiliary device for box bottom forming, 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: a shape control auxiliary device for box bottom forming, comprising an auxiliary frame, a positioning mechanism, and an internal support mechanism. The auxiliary frame includes a fixed ring and a fixed plate arranged concentrically. A plurality of evenly distributed support rods are fixedly connected between the fixed ring and the fixed plate. The positioning mechanism includes a slider slidably installed in the support rods and a positioning mold fixedly installed on the top of the slider. A connecting rod is fixedly connected to one side of the slider. One end of the connecting rod slides through into the fixed plate. A driving component for driving the connecting rod to slide is provided inside the fixed plate.

[0006] The inner support mechanism is mounted on the fixed plate. The inner support mechanism includes a hydraulic cylinder fixedly installed at the center of the fixed plate, a support plate fixedly connected to the upper end of the hydraulic cylinder, and an arc-shaped inner support plate detachably installed on the top of the support plate.

[0007] In a preferred embodiment, the bottom of the fixing ring is fixedly connected with a plurality of ring-shaped supporting legs.

[0008] In a preferred embodiment, the driving component includes a turntable rotatably mounted in a fixed disk, the surface of which is provided with a plurality of annularly distributed guide grooves, and a guide block is fixedly connected to the end of the connecting rod away from the slider, the guide block sliding within the guide groove.

[0009] In a preferred embodiment, the bottom of the fixed disk is provided with a motor for driving the turntable to rotate.

[0010] In a preferred embodiment, the slider has an internal mounting hole, and the bottom of the positioning mold is fixedly connected to a mounting rod that matches the mounting hole. The lower end of the mounting rod is threaded with a mounting nut.

[0011] In a preferred embodiment, a plurality of annularly distributed connecting studs are fixedly connected to the bottom edge of the arc-shaped inner support plate, and a plurality of annularly distributed connecting holes are provided on the support plate, with a connecting nut threaded to the lower end of the connecting studs.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The shape control auxiliary device for the bottom forming of the box, through the setting of the positioning mechanism, can control the sliding of the connecting rod through the driving component when assisting in the positioning of the bottom component. The connecting rod drives the slider to slide within the support rod, and the slider drives the positioning mold to slide. Thus, the position of all positioning molds can be adjusted at the same time. The positioning molds assist in the positioning of the edge of the bottom component. When dealing with bottoms of different sizes, the position of the positioning molds can be flexibly adjusted, making it convenient to use.

[0014] The shape control auxiliary device for the bottom forming of the box, through the setting of the internal support mechanism, can activate the hydraulic cylinder to drive the support plate to rise and fall when assisting in the positioning of the bottom components, so that the support plate drives the arc-shaped internal support plate to support the inner wall of the bottom, thereby improving the stability of the inner side of the bottom. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram showing the disassembled structure of the positioning mold of this utility model;

[0018] Figure 4 This is a schematic diagram showing the disassembled structure of the arc-shaped inner support plate of this utility model.

[0019] In the diagram: 1. Auxiliary frame; 11. Fixing ring; 12. Fixing plate; 13. Support rod; 14. Support leg; 2. Positioning mechanism; 21. Slider; 22. Positioning mold; 23. Connecting rod; 24. Driving component; 241. Turntable; 242. Guide groove; 243. Guide block; 25. Mounting hole; 26. Mounting rod; 27. Mounting nut; 3. Internal support mechanism; 31. Hydraulic cylinder; 32. Support plate; 33. Arc-shaped internal support plate; 34. Connecting stud; 35. Connecting hole; 36. Connecting nut. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0022] Please see Figure 1-4 This utility model provides a shape control auxiliary device for box bottom forming, including an auxiliary frame 1, a positioning mechanism 2 and an internal support mechanism 3. The auxiliary frame 1 includes a fixed ring 11 and a fixed plate 12 arranged concentrically. A plurality of evenly distributed support rods 13 are fixedly connected between the fixed ring 11 and the fixed plate 12. A plurality of ring-shaped support legs 14 are fixedly connected to the bottom of the fixed ring 11. By setting the auxiliary frame 1, it can play an auxiliary support role for the box bottom component.

[0023] Reference Figure 1 and Figure 2 The positioning mechanism 2 includes a slider 21 slidably mounted inside the support rod 13 and a positioning mold 22 fixedly mounted on the top of the slider 21. The positioning mold 22 has a positioning groove that matches the curvature of the bottom component. A connecting rod 23 is fixedly connected to one side of the slider 21. One end of the connecting rod 23 slides through the fixed plate 12. The fixed plate 12 is provided with a driving component 24 for driving the connecting rod 23 to slide. With the positioning mechanism 2, when assisting in the positioning of the bottom component, the driving component 24 can control the connecting rod 23 to slide, so that the connecting rod 23 drives the slider 21 to slide inside the support rod 13, and the slider 21 drives the positioning mold 22 to slide. Thus, the position of all positioning molds 22 can be adjusted at the same time. The positioning molds 22 are used to assist in the positioning of the edge of the bottom component. When dealing with bottoms of different sizes, the position of the positioning molds 22 can be flexibly adjusted, making it convenient to use.

[0024] Specifically, the driving component 24 includes a turntable 241 rotatably mounted inside the fixed disk 12. A motor for driving the turntable 241 to rotate is provided at the bottom of the fixed disk 12. The surface of the turntable 241 is provided with multiple annularly distributed guide grooves 242. A guide block 243 is fixedly connected to the end of the connecting rod 23 away from the slider 21. The guide block 243 slides in the guide groove 242. By setting the driving component 24, when adjusting the position of the positioning mold 22, the motor can be started to drive the turntable 241 to rotate, so that the turntable 241 drives all the guide grooves 242 to move in a circular motion. Since the guide block 243 can only slide in the guide groove 242, the turntable 241 will drive all the connecting rods 23 to slide.

[0025] Furthermore, the slider 21 has an internal mounting hole 25, and the bottom of the positioning mold 22 is fixedly connected to a mounting rod 26 that matches the mounting hole 25. The lower end of the mounting rod 26 is threaded with a mounting nut 27. With the mounting hole 25, mounting rod 26 and mounting nut 27, when assisting in positioning the bottom of the box of different shapes, the mounting nut 27 can be loosened to pull the mounting rod 26 out of the mounting hole 25, thereby facilitating the disassembly and replacement of the positioning mold 22 and the replacement of the positioning groove that matches the curvature of the bottom component.

[0026] Reference Figure 1 and Figure 4 The inner support mechanism 3 is mounted on the fixed plate 12. The inner support mechanism 3 includes a hydraulic cylinder 31 fixedly mounted at the center of the fixed plate 12, a support plate 32 fixedly connected to the upper end of the hydraulic cylinder 31, and an arc-shaped inner support plate 33 detachably mounted on the top of the support plate 32. With the inner support mechanism 3, when assisting in the positioning of the bottom components of the box, the hydraulic cylinder 31 can be activated to drive the support plate 32 to rise and fall, so that the support plate 32 drives the arc-shaped inner support plate 33 to support the inner wall of the bottom of the box, thereby improving the stability of the inner side of the bottom of the box.

[0027] Furthermore, multiple annularly distributed connecting studs 34 are fixedly connected to the bottom edge of the arc-shaped inner support plate 33, and multiple annularly distributed connecting holes 35 are opened on the support plate 32. The lower end of the connecting stud 34 is threaded with a connecting nut 36. With the setting of connecting studs 34, connecting holes 35 and connecting nuts 36, when assisting in positioning the bottom of the box of different shapes, the connecting nuts 36 can be loosened and the connecting studs 34 can be pulled out from the connecting holes 35, thereby facilitating the disassembly and replacement of the arc-shaped inner support plate 33, and replacing it with an arc-shaped inner support plate 33 that matches the curvature of the bottom component.

[0028] The working principle and usage process of this utility model are as follows: First, according to the shape of the box bottom, a positioning mold 22 with a positioning groove that matches the curvature of the box bottom component is selected and assembled onto the slider 21. An arc-shaped inner support plate 33 that matches the curvature of the box bottom component is assembled onto the support plate 32. When assisting in the positioning of the box bottom component, the motor can be started to drive the turntable 241 to rotate, so that the turntable 241 drives all the guide grooves 242 to move in a circular motion. Since the guide block 243 can only slide in the guide groove 242, the turntable 241 will drive all the connecting rods 23 to slide, so that the connecting rods 23 drive the slider 21 to slide in the support rod 13, so that the slider 21 drives the positioning mold 22 to slide. Thus, the position of all the positioning molds 22 can be adjusted at the same time. The positioning mold 22 is used to assist in the positioning of the edge of the box bottom component. At the same time, the hydraulic cylinder 31 can be started to drive the support plate 32 to rise and fall, so that the support plate 32 drives the arc-shaped inner support plate 33 to support the inner wall of the box bottom, thereby improving the stability of the inner side of the box bottom.

[0029] 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 shape control auxiliary device for forming the bottom of a box, comprising an auxiliary frame (1), a positioning mechanism (2), and an internal support mechanism (3), characterized in that: The auxiliary frame (1) includes a fixed ring (11) and a fixed plate (12) arranged concentrically. A plurality of evenly distributed support rods (13) are fixedly connected between the fixed ring (11) and the fixed plate (12). The positioning mechanism (2) includes a slider (21) slidably installed in the support rod (13) and a positioning mold (22) fixedly installed on the top of the slider (21). A connecting rod (23) is fixedly connected to one side of the slider (21). One end of the connecting rod (23) slides through into the fixed plate (12). A driving component (24) for driving the connecting rod (23) to slide is provided in the fixed plate (12). The inner support mechanism (3) is mounted on the fixed plate (12). The inner support mechanism (3) includes a hydraulic cylinder (31) fixedly mounted at the center of the fixed plate (12), a support plate (32) fixedly connected to the upper end of the hydraulic cylinder (31), and an arc-shaped inner support plate (33) detachably mounted on the top of the support plate (32).

2. The shape control auxiliary device for box bottom forming according to claim 1, characterized in that: The bottom of the fixed ring (11) is fixedly connected to several ring-shaped support legs (14).

3. The shape control auxiliary device for box bottom forming according to claim 1, characterized in that: The driving component (24) includes a turntable (241) rotatably mounted in a fixed disk (12). The surface of the turntable (241) is provided with a plurality of annularly distributed guide grooves (242). The end of the connecting rod (23) away from the slider (21) is fixedly connected to a guide block (243), and the guide block (243) slides in the guide groove (242).

4. The shape control auxiliary device for box bottom forming according to claim 3, characterized in that: The bottom of the fixed disk (12) is provided with a motor for driving the turntable (241) to rotate.

5. The shape control auxiliary device for box bottom forming according to claim 1, characterized in that: The slider (21) has an installation hole (25) inside. The bottom of the positioning mold (22) is fixedly connected to an installation rod (26) that matches the installation hole (25). The lower end of the installation rod (26) is threaded with an installation nut (27).

6. The shape control auxiliary device for box bottom forming according to claim 1, characterized in that: Multiple annularly distributed connecting studs (34) are fixedly connected to the bottom edge of the arc-shaped inner support plate (33), and multiple annularly distributed connecting holes (35) are opened on the support plate (32). A connecting nut (36) is threaded to the lower end of the connecting stud (34).

Images