Stroke adjusting and detecting device

Abstract

The utility model relates to a stroke adjusting and detecting device. The detection device comprises an eccentric sleeve, a cylinder body, a first detection switch, a second detection switch, a piston, a push plate, an adjusting sleeve, a crankshaft, a gear shaft and a gear sleeve. The eccentric sleeve and the adjusting sleeve are provided with joint teeth which are matched with each other, the eccentric sleeve and the adjusting sleeve are connected through the joint teeth, the cylinder body is arranged on the adjusting sleeve, the piston is connected with the cylinder body, the piston is connected with the push plate, the push plate is connected with the adjusting sleeve, and the adjusting sleeve is connected with the cylinder body. And the crankshaft is arranged in the eccentric sleeve and the adjusting sleeve. According to the utility model, the position of the joint tooth is determined through the two detection switches, so that the eccentric sleeve and the adjusting sleeve are effectively jointed; in the prior structure, the position of the engaging teeth is not determined, so that the engaging teeth are damaged, or the engaging teeth are not engaged and ineffective movement is carried out.

Description

Technical Field

[0001] The utility model relates to a stroke adjustment detection device for a press, in particular to a stroke adjustment detection device. Background Art

[0002] Mechanical presses currently used both domestically and internationally are categorized as fixed-stroke presses and adjustable-stroke presses, depending on whether the stroke is variable. A search revealed that single-point toggle presses are the most common type of adjustable-stroke press. Currently produced toggle-type adjustable-stroke presses primarily achieve stroke adjustment by adjusting the eccentricity of the eccentric sleeve. However, since the eccentric sleeve is typically adjusted using a toothed structure, manual adjustment via rotation makes it difficult to control the adjustment precision. The eccentric sleeve is mounted inside the connecting rod, and the connection between the eccentric sleeve and the connecting rod heats up during machine operation. Over time, this heat and expansion of the eccentric sleeve and the connecting rod can make adjustment difficult, further increasing the difficulty of adjustment. Utility Model Content

[0003] The purpose of the utility model is to provide a stroke adjustment detection device with simple structure, automatic adjustment and accurate engagement, so as to solve the problems in the prior art.

[0004] The technical solution of the utility model is: a stroke adjustment detection device, the detection device includes an eccentric sleeve, a cylinder body, a detection switch 1, a detection switch 2, a piston, a push plate, an adjustment sleeve, a crankshaft, a gear shaft and a gear sleeve;

[0005] The eccentric sleeve and the adjusting sleeve are provided with mutually matching engaging teeth, the eccentric sleeve and the adjusting sleeve are engaged with each other through the engaging teeth, the cylinder body is provided on the adjusting sleeve, the piston is connected to the cylinder body, the piston is connected to the push plate, the push plate is connected to the adjusting sleeve, and the crankshaft is provided in the eccentric sleeve and the adjusting sleeve.

[0006] Preferably, the gear sleeve is arranged on the eccentric sleeve, and the gear shaft is connected to the gear sleeve.

[0007] Preferably, the detection switch 1 and the detection switch 2 are arranged on the adjustment sleeve, and the detection switch 1 and the detection switch 2 correspond to the engaging teeth on the eccentric sleeve and the adjustment sleeve respectively.

[0008] The beneficial effects of the utility model are as follows: the position of the engaging teeth is determined by two detection switches, so that the eccentric sleeve and the adjusting sleeve are effectively engaged; and the previous structure is prevented from damaging the engaging teeth or the engaging teeth not engaging and performing invalid movement due to the uncertainty of the position of the engaging teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of the present utility model.

[0010] Figure 2 yes Figure 1 Enlarged schematic diagram of point A in the middle.

[0011] Figure 3 It is a structural diagram of the eccentric sleeve and the adjusting sleeve.

[0012] In the figure, 1 is the eccentric sleeve, 2 is the cylinder body, 3 is the detection switch 1, 4 is the detection switch 2, 5 is the piston, 6 is the push plate, 7 is the adjustment sleeve, 8 is the crankshaft, 9 is the gear shaft, and 10 is the gear sleeve. DETAILED DESCRIPTION

[0013] A stroke adjustment detection device, comprising an eccentric sleeve 1, a cylinder body 2, a detection switch 1 3, a detection switch 2 4, a piston 5, a push plate 6, an adjustment sleeve 7, a crankshaft 8, a gear shaft 9 and a gear sleeve 10;

[0014] The eccentric sleeve 1 and the adjusting sleeve 7 are provided with mutually matching engaging teeth, the eccentric sleeve 1 and the adjusting sleeve 7 are engaged with each other through the engaging teeth, the cylinder body 2 is provided on the adjusting sleeve 7, the piston 5 is connected to the cylinder body 2, the piston 5 is connected to the push plate 6, the push plate 6 is connected to the adjusting sleeve 7, and the crankshaft 8 is provided in the eccentric sleeve 1 and the adjusting sleeve 7.

[0015] The gear sleeve 10 is arranged on the eccentric sleeve 1 , and the gear shaft 9 is connected to the gear sleeve 10 .

[0016] The detection switch 1 3 and the detection switch 2 4 are arranged on the adjustment sleeve 7 , and the detection switch 1 3 and the detection switch 2 4 correspond to the engaging teeth on the eccentric sleeve 1 and the adjustment sleeve 7 respectively.

[0017] The working principle of the utility model is: gas passes through the air inlet of the cylinder body 2, pushing the piston 5, and then pushing the push plate 6 and the adjusting sleeve 7 to move to the right, the engaging teeth of the eccentric sleeve 1 and the adjusting sleeve 7 are disengaged, the rotating gear shaft 9 drives the gear sleeve 10 to rotate, and then drives the eccentric sleeve 1 to rotate, the eccentric geometry of the eccentric sleeve 1 and the crankshaft 8 is superimposed to form different press strokes; when it rotates to a predetermined angle, the adjusting sleeve 7 moves to the left under the action of the spring, the engaging teeth of the eccentric sleeve 1 and the adjusting sleeve 7 are engaged, and the stroke adjustment is completed.

[0018] The stroke adjustment detection device is a device that sets a boss on the push plate and determines the position of the engaging teeth through two detection switches, so that the eccentric sleeve and the adjustment sleeve are effectively engaged. This prevents the previous structure from damaging the engaging teeth or causing invalid movement due to the failure to determine the position of the engaging teeth.

[0019] In the description of the present invention, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly specified and limited, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0021] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can all be customized according to the description and the drawings.

[0022] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stroke adjustment detection device, characterized in that: The detection device comprises an eccentric sleeve (1), a cylinder body (2), a detection switch 1 (3), a detection switch 2 (4), a piston (5), a push plate (6), an adjustment sleeve (7), a crankshaft (8), a gear shaft (9) and a gear sleeve (10); The eccentric sleeve (1) and the adjusting sleeve (7) are provided with engaging teeth that match each other, the eccentric sleeve (1) and the adjusting sleeve (7) are engaged with each other through the engaging teeth, the cylinder body (2) is provided on the adjusting sleeve (7), the piston (5) is connected to the cylinder body (2), the piston (5) is connected to the push plate (6), the push plate (6) is connected to the adjusting sleeve (7), and the crankshaft (8) is provided in the eccentric sleeve (1) and the adjusting sleeve (7).

2. The stroke adjustment detection device according to claim 1, characterized in that: The gear sleeve (10) is arranged on the eccentric sleeve (1), and the gear shaft (9) is connected to the gear sleeve (10).

3. The stroke adjustment detection device according to claim 1, characterized in that: The detection switch 1 (3) and the detection switch 2 (4) are arranged on the adjustment sleeve (7), and the detection switch 1 (3) and the detection switch 2 (4) correspond to the engaging teeth on the eccentric sleeve (1) and the adjustment sleeve (7), respectively.

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