Stroke multiplication mechanism for small stroke cylinder driving large stroke

Abstract

The utility model belongs to the automobile manufacturing technical field, concretely relates to a stroke multiplication mechanism for small-stroke cylinder driving large-stroke, including fixed part, turnover part, sliding part and drive part. The utility model discloses through the small stroke linear motion of cylinder is converted into the rotary motion of rotary arm, further converts into the linear motion of slide, has realized the amplification of slide stroke to cylinder stroke, makes small stroke cylinder can drive slide to complete large stroke action, has avoided the high cost problem that the long-stroke cylinder brought, has reduced the manufacturing cost of equipment significantly.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, specifically relating to a stroke multiplier mechanism for driving a large stroke cylinder with a small stroke cylinder. Background Technology

[0002] In the field of automated production, especially in the automotive manufacturing industry, cylinder-driven slide mechanisms are widely used in workpiece handling, conveying, and positioning due to their simple structure and reliable operation.

[0003] In traditional cylinder-driven slide mechanisms, the slide's stroke is directly determined by the cylinder's stroke; that is, the slide's movement distance is exactly the same as the cylinder piston's extension and retraction length. This structure requires long-stroke cylinders for applications demanding a larger slide stroke. However, long-stroke cylinders have significant drawbacks: firstly, their procurement cost is significantly higher than short-stroke cylinders, leading to an increase in overall equipment cost; secondly, the larger structural dimensions of long-stroke cylinders increase the overall size of the slide mechanism, occupying more production space and hindering compact equipment design; furthermore, long-stroke cylinders have relatively slower response times and greater power losses, making them difficult to meet the demands of high-efficiency production. Utility Model Content

[0004] The purpose of this invention is to provide a stroke multiplication mechanism for driving a large stroke cylinder with a small stroke, so as to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stroke multiplication mechanism for driving a large stroke with a small stroke cylinder, comprising a fixed part, a flipping part, a sliding part, and a driving part; The fixing part includes a fixing base and a guide rail. The guide rail is fixed on the fixing base, and the fixing base is provided with a through groove for the flipping part to pass through. The flipping part includes a first rotating shaft, a second rotating shaft, a rotating arm, a fixed plate, and a cylinder connecting seat. The upper part of the rotating arm is hinged to the sliding part through the second rotating shaft, and the lower part is hinged to the fixed plate through the first rotating shaft. The fixed plate is fixed on the cylinder connecting seat, and the cylinder connecting seat is fixed on the fixed base. The sliding part includes a slide table and a slider. The slider is fixed to the bottom of the slide table and slidably connected to the guide rail. The slide table is hinged to the second rotating shaft. The driving part is a cylinder, which cooperates with the cylinder connecting seat to drive the rotating arm to rotate around the first rotating axis, so as to drive the slide table to move along the guide rail, and the stroke of the slide table is greater than the stroke of the cylinder.

[0006] Preferably, the through groove is located in the middle of the fixed base.

[0007] Preferably, the rotating arm is provided with a guide groove for relative movement of the second rotating shaft.

[0008] Preferably, the cylinder is fixed on a fixed base.

[0009] The beneficial effects of this utility model are as follows: This utility model converts the small-stroke linear motion of the cylinder into the rotational motion of the rotating arm, and then further into the linear motion of the slide table, thereby amplifying the stroke of the slide table to the stroke of the cylinder. This enables the small-stroke cylinder to drive the slide table to complete large-stroke actions, effectively avoiding the high cost problem caused by using long-stroke cylinders and significantly reducing the manufacturing cost of the equipment.

[0010] Meanwhile, the mechanism has a compact structure and provides movement space for the rotating arm through the reasonable component layout, especially the through slot design of the fixed base. It can increase the stroke without excessively increasing the size of the equipment, making it suitable for space-restricted scenarios such as automobile manufacturing. In addition, the short-stroke cylinder responds more quickly, which helps to improve the overall operating efficiency of the equipment. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present utility model; Figure 2 This is an initial state diagram of the present invention; Figure 3 This is a diagram showing the working state of this utility model. Detailed Implementation

[0012] In the description of this disclosure, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to 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 disclosure.

[0013] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0014] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0015] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0016] like Figure 1 As shown, this utility model discloses a stroke multiplication mechanism for driving a large stroke cylinder with a small stroke, including a fixed part, a flipping part, a sliding part and a driving part.

[0017] The fixed part includes a fixed base 1 and a guide rail 2. The fixed base 1 is the mounting base of the entire mechanism, and the guide rail 2 is fixed on the upper part of the fixed base 1, and the two remain relatively stationary. The fixed base 1 has a through groove 11 in the middle. The position of the through groove 11 corresponds to the rotating arm 8 of the flipping part, so as to allow the rotating arm 8 to pass smoothly during the movement and avoid interference with the fixed base 1.

[0018] The flipping part includes a first rotating shaft 7, a second rotating shaft 3, a rotating arm 8, a fixed plate 9, and a cylinder connecting seat 10. The upper part of the rotating arm 8 is hinged to the side of the sliding table 4 of the sliding part through the second rotating shaft 3, and the lower part is hinged to the side of the fixed plate 9 through the first rotating shaft 7. The fixed plate 9 is fixed on the cylinder connecting seat 10, and the two form a rigid connection. The cylinder connecting seat 10 is fixed to the bottom of the fixed base 1, so that the flipping part as a whole maintains a relatively stable installation relationship with the fixed base 1.

[0019] The sliding part includes a slide table 4 and a slider 5. The slider 5 is fixed to the bottom of the slide table 4 and forms a sliding connection with the guide rail 2. That is, the slider 5 can slide back and forth along the length direction of the guide rail 2, thereby driving the slide table 4 to move synchronously and realize the linear movement of the slide table 4.

[0020] The driving part is a cylinder 6, which is fixed on the fixed base 1. Its output end is associated with the cylinder connecting seat 10, providing driving force for the movement of the flipping part.

[0021] like Figure 2 and Figure 3As shown, when cylinder 6 is activated, its piston moves linearly, transmitting driving force to cylinder connecting seat 10, which in turn drives fixed plate 9 to move, causing rotating arm 8 to rotate around first rotating shaft 7 as fulcrum. During the rotation of rotating arm 8, second rotating shaft 3 moves relative to the guide groove on rotating arm 8. Since second rotating shaft 3 is hinged to slide table 4, its position change will push or pull slide table 4, causing slide table 4 to move linearly along guide rail 2 via bottom slider 5.

[0022] By utilizing the lever principle of the rotating arm 8, the small-stroke linear motion of the cylinder 6 is converted into a linear displacement of the slide table 4 that is greater than the stroke of the cylinder 6, thus achieving the stroke amplification effect of "small-stroke cylinder driving large-stroke slide table".

[0023] For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A stroke multiplier mechanism for driving a large stroke cylinder with a small stroke, characterized in that, It includes a fixed part, a flipping part, a sliding part, and a driving part; The fixed part includes a fixed base (1) and a guide rail (2). The guide rail (2) is fixed on the fixed base (1). The fixed base (1) is provided with a through groove (11) for the flipping part to pass through. The flipping part includes a first rotating shaft (7), a second rotating shaft (3), a rotating arm (8), a fixed plate (9), and a cylinder connecting seat (10). The upper part of the rotating arm (8) is hinged to the sliding part through the second rotating shaft (3), and the lower part is hinged to the fixed plate (9) through the first rotating shaft (7). The fixed plate (9) is fixed on the cylinder connecting seat (10), and the cylinder connecting seat (10) is fixed on the fixed base (1). The sliding part includes a slide table (4) and a slider (5). The slider (5) is fixed to the bottom of the slide table (4) and slidably connected to the guide rail (2). The slide table (4) is hinged to the second rotating shaft (3). The driving part is a cylinder (6), which cooperates with the cylinder connecting seat (10) to drive the rotating arm (8) to rotate around the first rotating axis (7) so as to drive the slide (4) to move along the guide rail (2), and the stroke of the slide (4) is greater than the stroke of the cylinder (6).

2. The stroke multiplication mechanism according to claim 1, characterized in that, The through groove (11) is located in the middle of the fixed base (1).

3. The stroke multiplication mechanism according to claim 1, characterized in that, The rotating arm (8) is provided with a guide groove for relative movement of the second rotating shaft (3).

4. The stroke multiplication mechanism according to claim 1, characterized in that, The cylinder (6) is fixed on the fixed base (1).

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