Tooling structure with adjustable load

Abstract

A tooling structure with adjustable load comprises a shell, a sliding hole is provided in the shell, a pull rod slides in the sliding hole, one end of the sliding hole is connected to a connecting hole, the other end of the connecting hole is connected to the outside of the shell, the other end of the pull rod is connected to a connecting rod, and the other end of the connecting rod extends to the outside of the shell through the connecting hole; the shell is provided with at least two first limit holes in the radial direction, the lower end of the first limit hole is connected to the second limit hole, the lower end of the second limit hole is connected to the sliding hole, a limit spring is provided in the first limit hole, a stud with adjustable limit spring height is connected to the upper end of the first limit hole, a push rod is installed at the lower end of the limit spring, the push rod is located in the first limit hole and the second limit hole and is slidably connected, a steel ball is installed at the lower end of the push rod, and the lower end of the steel ball is against the surface of the pull rod. The present invention is convenient for adjusting the height of the limit spring according to the load condition, and load manipulation can be realized by connecting the valve or the steel cable to the pull rod through the connecting rod, and the load value is simple to apply and easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of load manipulation test equipment, and in particular to a tooling structure with adjustable load. Background Art

[0002] As process equipment, tooling has become a special equipment for accurate manufacturing and assembly, and plays a pivotal role in the production process. At present, in most manufacturing processes in my country, rigid structure tooling is widely used. Rigid structure tooling has the advantages of quick installation, high degree of factoryization, simple manufacturing, and low difficulty in operation, but it has the disadvantages of long cycle, high cost, and single application in the manufacturing process. At present, combined with the structural characteristics of aircraft and the diversity of aircraft, China has begun to develop flexible tooling technology. Flexible tooling is a comprehensive tooling that combines various technologies such as digital control, modern design methodology, advanced measurement, structural optimization and simulation. This technical tooling requires high technical content and requires professional personnel to operate and use. Although flexible tooling can shorten the manufacturing time of aircraft assembly to improve quality, reduce the number of tooling, and realize the "one type, multiple uses" manufacturing model, it is not suitable for the development of small enterprises. Therefore, considering the factors of technology, cost, manufacturing, scale, etc., this structure is suitable for the use of small factories or enterprises. As long as it is for the same load manipulation test, it can be applied to multiple types of products and can also realize the "one type, multiple uses" manufacturing model. Summary of the invention

[0003] The purpose of the present invention is to propose a tooling structure with an adjustable load to solve the above-mentioned problem, so that the tooling structure can have an adjustable function in a working state.

[0004] To achieve the above purpose, the following technical solution is adopted: a tooling structure with adjustable load, comprising a shell, a sliding hole is opened in the shell, a pull rod is slidably connected in the sliding hole, one end of the sliding hole is connected to a connecting hole, the connecting hole is coaxial with the sliding hole, the other end of the connecting hole is connected to the outside of the shell, the other end of the pull rod is connected to a connecting rod, and the other end of the connecting rod passes through the connecting hole and extends to the outside of the shell;

[0005] The shell wall of the shell is provided with at least two first limiting holes along the radial direction, the lower end of the first limiting hole is connected with the second limiting hole, the lower end of the second limiting hole is connected with the sliding hole, a limiting spring is provided in the first limiting hole, the upper end of the first limiting hole is connected with a stud with adjustable height of the limiting spring, a push rod is installed at the lower end of the limiting spring, the push rod is located in the first limiting hole and the second limiting hole and is slidably connected, a steel ball is installed at the lower end of the push rod, the lower end of the steel ball abuts against the surface of the pull rod provided in the sliding hole. Its function or effect: according to the load condition, it is convenient to adjust the elastic force of the limiting spring, the load operation can be realized by connecting the valve or steel cable to the pull rod through the connecting rod, and the load value is simple to apply and easy to operate.

[0006] Preferably, the shell wall of the housing is evenly distributed with first limiting holes, and the first limiting holes are all provided with matching second limiting holes, limiting springs, push rods, steel balls and studs; that is, the projections of the multiple first limiting holes provided on the housing along the axis direction of the sliding hole are evenly distributed or overlapped, and the first limiting holes are all provided with matching second limiting holes, limiting springs, push rods, steel balls and studs. Its function or effect: the pull rod is subjected to more uniform force during operation.

[0007] Preferably, the surface of the pull rod is provided with a plurality of arc grooves along the direction of the sliding hole, the arc grooves are against the steel ball, the groove depth of the same arc groove is the same, and the groove depth of different arc grooves is different. Its function or effect: the length of the limit spring can also be adjusted, that is, the elastic force of the limit spring can be adjusted, and the structure is combined with the stud adjustment method to increase the operability and convenience of the structure; and the pull rod can be moved along the sliding direction during operation to avoid self-rotation, so that the pull rod can smoothly realize and feel the load force transmission.

[0008] Preferably, the diameter of the connecting hole is smaller than the diameter of the sliding hole, which plays a limiting role.

[0009] Preferably, the cross-section of the push rod is T-shaped, which has a limiting effect.

[0010] The beneficial effects achieved by the present invention are as follows: by setting the pull rod, housing, first limit hole, second limit hole, limit spring, stud, push rod and steel ball, according to the load condition, after adjusting the elastic force of the limit spring, the valve or steel cable can be connected to the pull rod through the connecting rod to realize load manipulation, and the load value is simple and easy to operate. By setting two groups of first limit holes on the housing, and matching second limit holes, limit springs, studs, push rods and steel balls, the pull rod can be effectively and evenly stressed, and there will be no stuck or uneven stress, so the structure can meet the requirements of uniform operating force. The structure can be connected to the valve body or the steel cable, and after the connection, the operating force test or other corresponding operating processes can be carried out. By evenly distributing a plurality of first limit holes at equal angles on the side of the housing, and corresponding second limit holes, limit springs, studs, push rods and steel balls, the pull rod is more evenly stressed during operation. The structure can prevent misoperation and achieve stability and accuracy when used. The structure is designed with ergonomics in mind, so that when manipulating the load, pulling the rod at a constant speed can be smoothly achieved and the load force transfer can be felt. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the front structure of the tooling structure with adjustable load according to the present invention.

[0012] Figure 2It is a schematic diagram of the internal connection structure of the tooling structure with adjustable load according to the present invention.

[0013] Figure 3 The figure is a schematic cross-sectional view of the shell of the tooling structure with adjustable load according to the present invention.

[0014] In the figure, 1-housing, 2-sliding hole, 3-pull rod, 4-connecting hole, 5-connecting rod, 6-first limiting hole, 7-second limiting hole, 8-limiting spring, 9-stud, 10-top rod, 11-steel ball. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] See attached Figure 1-3 , a tooling structure with adjustable load, including a shell 1, a sliding hole 2 is opened in the shell 1, a pull rod 3 is slidably connected in the sliding hole 2, one end of the sliding hole 2 is connected to a connecting hole 4, the connecting hole 4 is coaxial with the sliding hole 2, the other end of the connecting hole 4 is connected to the outside of the shell 1, the other end of the pull rod 3 is connected to a connecting rod 5, and the other end of the connecting rod 5 passes through the connecting hole 4 and extends to the outside of the shell 1;

[0018] The shell wall of the shell 1 is provided with at least two first limiting holes 6 along the radial direction, the lower end of the first limiting hole 6 is connected with the second limiting hole 7, the lower part of the second limiting hole 7 is connected with the sliding hole 2, a limiting spring 8 is provided in the first limiting hole 6, the upper end of the first limiting hole 6 is connected with a stud 9 for adjusting the height of the limiting spring 8, a push rod 10 is installed at the lower end of the limiting spring 8, the push rod 10 is slidably connected in the first limiting hole 6 and the second limiting hole 7, a steel ball 11 is installed at the lower end of the push rod 10, and the lower part of the steel ball 11 abuts against the surface of the pull rod 3 arranged in the sliding hole 2.

[0019] The shell wall of the shell 1 is evenly distributed with first limiting holes 6 at equal angles, and the first limiting holes 6 are each provided with a second limiting hole 7 , a limiting spring 8 , a push rod 10 , a steel ball 11 and a stud 9 matching therewith.

[0020] The surface of the pull rod 3 is provided with a plurality of arc grooves along the direction of the sliding hole 2 , wherein the arc grooves abut against the steel balls 11 , and the groove depths of the same arc groove are the same, while the groove depths of different arc grooves are different.

[0021] The diameter of the connecting hole 4 is smaller than the diameter of the sliding hole 2 .

[0022] The cross section of the push rod 10 is T-shaped.

[0023] Working principle of the present invention: Under the principle of action and reaction, when pushing or pulling the pull rod 3, a certain force needs to be applied to pull or push the pull rod 3. When installing the stud 9, the stud 9 is threadedly connected to the upper end of the first limiting hole 6, so that the lower end surface of the stud 9 is against the upper end of the limiting spring 8, thereby controlling the installation height of the limiting spring 8, and adjusting the height of the limiting spring 8 according to the actual required load force; when adjusting the height of the limiting spring 8, it is necessary to keep the height of the two limiting springs 8 consistent, so that the elastic force of the two limiting springs 8 is the same. When the load force needs to be increased, it is necessary to reduce the installation height of the two limiting springs 8. The smaller the installation height, the greater the extrusion force, thereby achieving load values ​​of different sizes.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tooling structure with adjustable load, characterized in that: The invention comprises a shell (1), a sliding hole (2) is provided in the shell (1), a pull rod (3) is slidably connected in the sliding hole (2), one end of the sliding hole (2) is connected to a connecting hole (4), the connecting hole (4) is coaxial with the sliding hole (2), the other end of the connecting hole (4) is connected to the outside of the shell (1), the other end of the pull rod (3) is connected to a connecting rod (5), and the other end of the connecting rod (5) passes through the connecting hole (4) and extends to the outside of the shell (1); The shell wall of the shell (1) is provided with at least two first limiting holes (6) along the radial direction, the lower end of the first limiting hole (6) is connected with the second limiting hole (7), the lower end of the second limiting hole (7) is connected with the sliding hole (2), a limiting spring (8) is provided in the first limiting hole (6), the upper end of the first limiting hole (6) is connected with a stud (9) for adjusting the height of the limiting spring (8), a push rod (10) is installed at the lower end of the limiting spring (8), the push rod (10) is slidably connected in the first limiting hole (6) and the second limiting hole (7), a steel ball (11) is installed at the lower end of the push rod (10), and the lower end of the steel ball (11) abuts against the surface of the pull rod (3) arranged in the sliding hole (2); The diameter of the connecting hole (4) is smaller than the diameter of the sliding hole (2); The cross section of the push rod (10) is T-shaped.

2. The tooling structure with adjustable load according to claim 1, characterized in that: The shell wall of the shell (1) is evenly distributed with first limiting holes (6) at equal angles, and each of the first limiting holes (6) is provided with a second limiting hole (7) matching therewith, a limiting spring (8), a push rod (10), a steel ball (11) and a stud (9).

3. The tooling structure with adjustable load according to claim 1 or 2, characterized in that: The surface of the pull rod (3) is provided with a plurality of arc grooves along the direction of the sliding hole (2), the arc grooves abutting against the steel balls (11), the groove depths of the same arc groove are the same, and the groove depths of different arc grooves are different.

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