Adjustable length piston rod system

Abstract

A piston rod system that can freely and quickly adjust the length, which is composed of a piston rod, a piston, a sleeve, a screw rod, a nut, a sealing element, a buffer element and other components. The piston rod is hollow, and the piston is fixed thereto. The rod end is connected with the sleeve through a thread to adjust the piston stroke. After adjustment, the position is fixed by a nut. A screw rod is arranged in the piston rod, and the length of the screw rod extending out of the piston rod can be freely adjusted in the axial direction. After reaching the target length, the position of the screw rod is fixed by a nut, and the screw rod is connected with the piston rod as a whole. The working height can be conveniently adjusted by using a machining equipment with a cylinder, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a piston rod system whose length can be freely and quickly adjusted, which is suitable for applications such as cylinder stamping and press fitting in industrial production. Background Technology

[0002] Taking press-fitting equipment as an example, currently, the known cylinder piston rod can only adjust the stroke, not the working height. Since the heights of workpieces and molds vary, it is necessary to freely adjust the working height of the equipment to adapt to different processing scenarios. However, the limitations of existing piston rods make product processing very inconvenient, causing problems in actual production operations. Summary of the Invention

[0003] To address this problem, this invention provides a piston rod system with freely and quickly adjustable length. This system not only allows for convenient stroke adjustment but also enables rapid and free length adjustment, thereby changing the working height of the equipment and improving production efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: the piston rod is hollow, and the piston is fixed on it. One end of the piston rod is connected to the sleeve by a thread. Rotating the sleeve can adjust the piston stroke. After adjustment, the sleeve position is locked with a nut. Inside the piston rod, a fully threaded rod longer than the piston rod is inserted. Its length extending out of the piston rod can be freely adjusted. After reaching the target length, the position is locked with two nuts, so that it is connected to the piston rod as one piece, thereby achieving the purpose of adjusting the working height of the equipment.

[0005] The beneficial effects of this invention are: in stamping equipment that uses cylinders, not only can the piston stroke be easily adjusted, but the working height can also be quickly and freely adjusted, enhancing the applicability of the equipment and improving production efficiency. Attached Figure Description

[0006] The embodiments of this utility model will be further described below with reference to the accompanying drawings: Figure 1 , Figure 2 This is a diagram illustrating the application scenario of this utility model; Figure 3 This is a cross-sectional structural diagram of an embodiment of the piston rod system, and also a representation of the system's components; Figure 4 This is an exploded view of an embodiment of the piston rod system.

[0007] Figure 1 , Figure 2 1. This piston rod system; 2. Cylinder body; 3. Workpiece to be processed; A is the working height of the equipment. (By...) Figure 1 , Figure 2 As can be seen, the working height of the equipment varies depending on the workpiece height, and this system can adjust accordingly to meet the requirements. (Note: The cylinder block in the diagram is for illustrative purposes only and is not included in this system.)

[0008] Figure 3 , Figure 4 1. Lead screw; 2. Nut; 3. Piston rod; 4. Piston; 5. Buffer ring; 6. Sleeve; 7. Nut; 8. Sealing ring (Note: Except for the buffer ring and sealing ring, which are made of plastic, all other components are metal). Detailed Implementation

[0009] Piston stroke adjustment: In Figure 3 In the middle, the piston (4) is fixed on the piston rod (3), and the two are sealed with a sealing ring (8). One end of the piston rod is machined with an external thread, and one end of the sleeve (6) is machined with a part of the internal thread. The two are connected by threads. The stroke can be adjusted by rotating the sleeve. The nut (7) is used to fix the position of the sleeve. A buffer ring (5) is set at the contact end between the sleeve and the cylinder body to buffer, reduce shock and protect the cylinder body.

[0010] Screw length adjustment: This length refers to the length of the screw extending from the piston rod, which determines the working height of the equipment. Figure 3 In the middle, the lead screw (1) is placed into the piston rod (3). The lead screw can move freely along the axis as needed. After reaching the target position, the position is locked with the nuts (2) at both ends so that it is connected to the piston rod as one unit.

[0011] In summary, the piston rod system of this utility model can effectively solve the problem of adjusting the working height of equipment in industrial production applications such as cylinder stamping and press fitting. It has the advantages of saving time and efficiency and has broad application prospects.

Claims

1. An adjustable-length piston rod system, comprising a piston rod, piston, sleeve, lead screw, nut, seal, and buffer assembled in sequence, characterized by: The piston rod is hollow, and the piston is fixed to it. The end of the rod is connected to the sleeve by a thread to adjust the piston stroke. After adjustment, the position is fixed with a nut. A lead screw is built into the piston rod, which can be freely adjusted along the axis to extend the length of the lead screw from the piston rod. After reaching the target length, the position of the lead screw is fixed with a nut, connecting it to the piston rod as one unit.

2. The adjustable-length piston rod system according to claim 1, characterized in that: The piston rod is machined with an external thread at one end and an internal thread with the same thread gauge at the other end, but the number of threads on the sleeve is less than that on the piston rod. The two are connected by threads. For ease of machining, the piston rod can be made into a two-section design.

3. The adjustable-length piston rod system according to claim 1, characterized in that: The piston and piston rod are sealed with a seal, the length of the lead screw is greater than the length of the piston rod, and the piston and piston rod do not interfere with the free movement of the built-in lead screw.

Images