Oil cylinder of 90-degree rotary connecting rod mechanism

Abstract

The utility model relates to the technical field of oil cylinders, and discloses a 90-degree rotating connecting rod mechanism oil cylinder which comprises a cylinder body, a cavity and a driving chamber are arranged in the cylinder body, the cavity and the driving chamber are communicated through a communicating hole, oil inlets and outlets are formed in the two sides of the cavity, and the other sides of the oil inlets and outlets extend out of the cylinder body. And a piston rod is arranged in the cavity, and the other end of the piston rod movably penetrates through the communicating hole into the driving chamber and is provided with a guide piece. The connecting rod design is adopted as a power transmission part, the connecting rod mechanism is simple in structure, high power transmission and high strength are achieved, compared with a traditional rack and gear structure and a connecting rod mechanism, miniaturization is easier, and due to the fact that the connecting rod mechanism does not need a tooth cutting procedure, the production and delivery cycle is shortened, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinders, in particular to an oil cylinder of a 90-degree rotating connecting rod mechanism. Background Art

[0002] 90° rotating cylinders are used in the "nesting" parts of aluminum die-casting molds, namely the cavity and core, and are clamped by rotating the cylinder rod 90°. Traditional products use a "rack and pinion structure" to achieve 90° rotation, but there are the following problems:

[0003] 1. The traditional rack and pinion system uses involute gears, making it difficult to achieve high power transmission. (Increasing the module of the gears tends to increase their size.) Operator error and other factors can cause involute gears to be unable to withstand unexpected loads, leading to gear damage.

[0004] 2. The traditional "rack and pinion structure" uses involute gears, which has backlash, low responsiveness and stopping accuracy.

[0005] 3. With the miniaturization of molds, the installation space of the 90° rotating mechanism cylinder has become narrow, and its volume cannot meet the current miniaturization requirements.

[0006] 4. The traditional rack and pinion structure uses involute gears, which requires a "tooth cutting" process, which prolongs production lead times. Furthermore, the tooth cutting process also increases costs. Utility Model Content

[0007] The utility model aims to solve the problems existing in the prior art and proposes a 90° rotating connecting rod mechanism oil cylinder.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] The 90° rotating connecting rod mechanism oil cylinder includes a cylinder body, a chamber and a driving chamber are provided in the cylinder body, the chamber and the driving chamber are connected by a connecting hole, oil inlet and outlet are opened on both sides of the chamber, the other side of the oil inlet and outlet extends out of the cylinder body, a piston rod is provided inside the chamber, the other end of the piston rod can be movably passed through the connecting hole to the driving chamber, and a guide part is installed, a connecting rod is rotatably installed on the guide part through a rotating shaft, and a drive shaft is installed on the other end of the connecting rod through a rotating shaft, the drive shaft is rotatably connected to the cylinder body, and one end thereof extends out of the cylinder body.

[0010] Preferably, a guide groove is provided on one side of the inner wall of the driving chamber, and one end of the guide member is movably disposed in the guide groove and adapted to the guide groove.

[0011] Preferably, the guide member is L-shaped as a whole, and an arc groove is provided at its inner corner position. A shaft sleeve is installed in the driving chamber, and the driving shaft is rotatably installed in the shaft sleeve, and the arc groove is adapted to the shaft sleeve.

[0012] Preferably, the cylinder body is designed as a plate as a whole.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model adopts a connecting rod design as a power transmission component. Due to the simple structure of the connecting rod mechanism, high power transmission and high strength are achieved. Compared with the traditional rack and pinion structure, the connecting rod mechanism is easier to miniaturize. Moreover, since the connecting rod mechanism does not require a tooth cutting process, it shortens the production delivery cycle and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the 90° rotating connecting rod mechanism oil cylinder proposed in the utility model;

[0016] Figure 2 This is a side view of the 90° rotating connecting rod mechanism oil cylinder proposed in the utility model;

[0017] Figure 3 This is a schematic diagram of the motion state of the 90° rotating connecting rod mechanism oil cylinder proposed in the utility model.

[0018] In the figure: 1. Cylinder body; 2. Chamber; 3. Drive chamber; 4. Connecting hole; 5. Oil inlet and outlet; 6. Piston rod; 7. Guide member; 8. Connecting rod; 9. Drive shaft; 10. Bushing; 11. Guide groove; 12. Arc groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-Figure 3 , a 90° rotating connecting rod mechanism oil cylinder includes a cylinder body 1, a chamber 2 and a driving chamber 3 are provided in the cylinder body 1, the chamber 2 and the driving chamber 3 are connected through a connecting hole 4, and oil inlet and outlet 5 are opened on both sides of the chamber 2, and the other side of the oil inlet and outlet 5 extends to the outside of the cylinder body 1, and a piston rod 6 is provided inside the chamber 2, and the other end of the piston rod 6 is movable through the connecting hole 4 to the driving chamber 3, and is installed with a guide member 7, a connecting rod 8 is rotatably installed on the guide member 7 through a rotating shaft, and a drive shaft 9 is installed on the other end of the connecting rod 8 through a rotating shaft, the drive shaft 9 is rotatably connected to the cylinder body 1, and one end thereof extends to the outside of the cylinder body 1.

[0021] When the device is in use, oil is injected through the two oil inlets and outlets 5 to realize the movement of the piston, realize the linear movement of the guide member 7, and use the connecting rod 8 to realize the rotation of the drive shaft 9. Compared with the existing technology, the oil cylinder adopts the connecting rod 8 as the power transmission component. Due to the simple structure of the connecting rod mechanism, high power transmission and high strength are achieved. Compared with the traditional rack and pinion structure, the connecting rod mechanism is easier to miniaturize. Moreover, since the connecting rod mechanism does not require a tooth cutting process, the production delivery cycle is shortened and the cost is reduced.

[0022] In this embodiment, a guide groove 11 is provided on one side of the inner wall of the driving chamber 3, and one end of the guide member 7 is movably arranged in the guide groove 11 and adapted to the guide groove 11. Through the designed guide groove 11 structure, the oil cylinder does not need to consider the backlash problem of the traditional "rack and gear structure" due to the use of involute gears. Its linear guide structure can effectively improve the responsiveness and stopping accuracy.

[0023] In this embodiment, the guide member 7 is L-shaped as a whole, and an arc groove 12 is provided at its inner corner position. A shaft sleeve 10 is installed in the drive chamber 3, and the drive shaft 9 is rotatably installed in the shaft sleeve 10. The arc groove 12 is adapted to the shaft sleeve 10. The design of the arc groove 12 is to adapt to the movement of the guide member 7 to the shaft sleeve 10, which is conducive to further streamlining the space.

[0024] In this embodiment, the cylinder body 1 is designed as a plate as a whole.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. 90° rotating connecting rod mechanism oil cylinder, including cylinder body, characterized by: A chamber and a drive chamber are provided in the cylinder body, and the chamber and the drive chamber are connected through a connecting hole. Oil inlets and outlets are provided on both sides of the chamber, and the other side of the oil inlet and outlet extends out of the cylinder body. A piston rod is provided inside the chamber, and the other end of the piston rod can move through the connecting hole to the drive chamber and is installed with a guide. A connecting rod is rotatably installed on the guide through a rotating shaft, and a driving shaft is installed on the other end of the connecting rod through a rotating shaft. The driving shaft is rotatably connected to the cylinder body, and one end thereof extends out of the cylinder body.

2. The 90° rotating connecting rod mechanism oil cylinder according to claim 1, characterized in that: A guide groove is provided on one side of the inner wall of the driving chamber, and one end of the guide member is movably disposed in the guide groove and adapted to the guide groove.

3. The 90° rotating connecting rod mechanism oil cylinder according to claim 1, characterized in that: The guide member is L-shaped as a whole, and an arc groove is provided at its inner corner position. A shaft sleeve is installed in the driving chamber, and the driving shaft is rotatably installed in the shaft sleeve. The arc groove is adapted to the shaft sleeve.

4. The 90° rotating connecting rod mechanism oil cylinder according to claim 2, characterized in that: The cylinder body is designed as a plate as a whole.

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