A wedge-shaped compression device

Abstract

The present application belongs to the field of mechanical design, and relates to a device for realizing lateral pressing of a workpiece by realizing sliding of a pressing block through a cam mechanism. Specifically, the present application relates to a wedge-shaped pressing device. The wedge-shaped device comprises a support, a sliding block, a pull rod, a cam handle, a nut, a first pin, a second pin and a spring. In the present wedge-shaped device, the cam handle is used to replace the screw, so that the original function of operating the screw through an external tool can be realized after the cam is conveniently operated, thereby saving the external tool and saving time and labor. Meanwhile, by adding a rebound structure, the pressing block can be automatically pulled up by the spring force after the cam is loosened, so that the pressing block is separated from the workpiece, thereby saving manual operation and saving the demand for workers.

Description

Technical Field

[0001] This invention belongs to the field of mechanical design and relates to a device that uses a cam mechanism to slide a pressure block, thereby achieving lateral clamping of a workpiece. Specifically, it is a wedge-shaped clamping device. Background Technology

[0002] In the field of machine tool fixtures, when it is necessary to clamp a large area of ​​the tooling from the side, a wedge-shaped clamping device is usually used. Traditional wedge clamping devices usually achieve clamping and loosening of the workpiece by tightening and loosening the pressure block through the tightening and loosening of the screw. After loosening, the pressure block needs to be manually pulled to remove the workpiece, which is not convenient. Summary of the Invention

[0003] The technical solution of this invention:

[0004] A wedge-shaped clamping device includes a support 1, a slider 2, a pull rod 3, a cam handle 4, a nut 5, a first pin 6, a second pin 7, and a spring 8. The support 1 is a right-angled trapezoid, and the slider 2 is an inverted right-angled trapezoid. The inclined surface of the slider 2 matches the inclined surface of the support 1. The pull rod 3 passes through the slider 2 and the support 1. The slider 2 has an elongated hole to ensure that the slider 2 does not interfere with the pull rod 3 when sliding. The upper end of the pull rod 3 is connected to the cam handle 4 via the first pin 6, and the lower end is threaded to the nut 5. The nut 5 is placed in the bottom hole of the support 1. Both the support 1 and the slider 2 have small holes for fixing the second pins 7. The two second pins 7 are respectively hung on the two ends of the spring 8. The spring 8 is parallel to the inclined surface of the support 1. When the cam handle 4 rotates counterclockwise, as the radius of the cam on the cam handle 4 increases, it drives the slider 2 to move closer to the workpiece.

[0005] Furthermore, the support 1 has a dovetail groove on its inclined side, and the shape of the inclined side of the slider 2 matches the shape of the dovetail groove to ensure that the slider 2 moves in a straight line along the inclined surface.

[0006] Furthermore, the shape of the nut 5 rotates according to different working conditions.

[0007] Furthermore, the shape of the nut 5 should match the inner shape of the bottom hole of the support 1 to prevent the nut 5 from rotating.

[0008] Furthermore, the surface of the slider 2 that contacts the workpiece should match the shape of the workpiece to ensure stable pressure.

[0009] Furthermore, the elastic force of the spring 8 should be sufficient to pull the slider 2 back to its initial position when the cam handle 4 is released.

[0010] Furthermore, the width of the elongated hole is smaller than the width of the cam handle 4, which limits the cam handle 4 and ensures that the cam handle 4 will not fall into the elongated hole.

[0011] The beneficial effects of this invention are:

[0012] In this wedge-shaped device, a cam handle replaces the screw, allowing for convenient operation of the cam to achieve the same effect as the screw operation previously required by external tools. This saves on external tools, time, and labor. Furthermore, the addition of a spring-loaded structure allows the pressure block to be automatically pulled upwards by spring force after the cam is released, thus detaching the pressure block from the workpiece. This eliminates manual operation and reduces the number of workers required. Attached Figure Description

[0013] When read in conjunction with the accompanying drawings, the exemplary embodiments, preferred modes of use, other objects, and description thereof will be best understood by referring to the following detailed description of examples of the invention, wherein:

[0014] Figure 1 This is a cross-sectional view of the wedge-shaped device;

[0015] Figure 2 This is a diagram showing the fit between the pressure block and the support;

[0016] Figure 3 A three-dimensional schematic diagram of the cam handle;

[0017] Figure 4 This is a 3D schematic diagram of the slider.

[0018] Among them, 1-support, 2-slider, 3-pull rod, 4-cam handle, 5-nut, 6-first pin, 7-second pin, 8-spring. Detailed Implementation

[0019] The disclosed examples will be described more fully with reference to the accompanying drawings, in which some (but not all) of the disclosed examples are shown. In fact, many different examples may be described, and these examples should not be construed as limited to those set forth herein. Rather, these examples are described so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0020] See the example. Figure 1

[0021] By rotating the cam handle 4 counterclockwise, the hexagonal nut 5 limits the sliding block 2, causing it to be subjected to a downward vertical force. Under the influence of the force component to the right, the slider 2 slides downward and to the right until it presses against the side of the workpiece. At this point, the spring 9 is in a stretched state. By rotating the cam handle 4 clockwise, the pressure on the slider 2 disappears. Under the stretching force of the spring 9, the slider 2 slides upward and to the left, thus moving the right end face of the slider 2 away from the workpiece.

[0022] Support 1 is a right-angled trapezoid with a dovetail groove on its hypotenuse. Slider 2 is an inverted right-angled trapezoid with a dovetail shape on its hypotenuse, and the dovetail shape of slider 2 matches the dovetail groove shape of support 1. Pull rod 3 passes through slider 2 and support 1, its upper end connected to cam handle 4 via pin 6, and its lower end threadedly connected to hexagonal nut 5, which is placed in a hexagonal hole at the bottom of support 1. Support 1 has a small hole at its upper end, in which pin 7 is fixed. Slider 2 has a small hole on the left side of its hypotenuse, in which pin 8 is fixed. Spring 9 connects pin 7 and pin 8.

[0023] The various examples of systems, apparatuses, and methods disclosed herein include a wide range of components, features, and functions. It should be understood that the various examples of systems, apparatuses, and methods disclosed herein may include any of the components, features, and functions of any of the other examples of systems, apparatuses, and methods disclosed herein in any combination or sub-combination, and all such possibilities are intended to fall within the scope of the invention.

[0024] Descriptions of various advantageous arrangements have been shown for illustrative and descriptive purposes, but such descriptions are not intended to be exclusive or limited to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. Furthermore, different advantageous examples may describe different advantages compared to other advantageous examples. One or more examples have been selected and described in order to best illustrate the principles and practical application of the examples, and to enable those skilled in the art to understand that this disclosure contains various examples with various modifications suitable for the particular intended use.

[0025] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein. The specific embodiments described above further illustrate the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A wedge-shaped clamping device, characterized in that, The system includes a support (1), a slider (2), a pull rod (3), a cam handle (4), a nut (5), a first pin (6), a second pin (7), and a spring (8). The support (1) is a right trapezoid, and the slider (2) is an inverted right trapezoid. The inclined surface of the slider (2) matches the inclined surface of the support (1). The pull rod (3) passes through the slider (2) and the support (1). An elongated hole is provided on the slider (2), which should ensure that the slider (2) does not interfere with the pull rod (3) when sliding. The upper end of the pull rod (3) is connected to the cam handle (4) through the first pin (6). The lower end is threaded to the nut (5), which is placed in the bottom hole of the support (1). The support (1) and the slider (2) are both provided with small holes for fixing the second pin (7). The two second pins (7) are respectively hung on the two ends of the spring (8). The spring (8) is parallel to the inclined surface of the support (1). When the cam handle (4) rotates counterclockwise, as the radius of the cam on the cam handle (4) increases, it drives the slider (2) to move closer to the workpiece. The elastic force of the spring (8) should be sufficient to pull the slider (2) back to the initial position when the cam handle (4) is released.

2. The wedge-shaped clamping device according to claim 1, characterized in that, The support (1) has a dovetail groove on its hypotenuse.

3. The wedge-shaped clamping device according to claim 2, characterized in that, The shape of the inclined side of the slider (2) matches the shape of the dovetail groove, ensuring that the slider (2) moves in a straight line along the inclined surface.

4. The wedge-shaped clamping device according to claim 3, characterized in that, The shape of the nut (5) is selected according to different working conditions.

5. A wedge-shaped clamping device according to claim 4, characterized in that, The shape of the nut (5) should match the inner shape of the bottom hole of the support (1) to prevent the nut (5) from rotating.

6. A wedge-shaped clamping device according to claim 5, characterized in that, The surface of the slider (2) that is in contact with the workpiece should match the shape of the workpiece to ensure stable pressure.

7. A wedge-shaped clamping device according to claim 6, characterized in that, The width of the elongated hole is smaller than the width of the cam handle (4), which limits the cam handle (4) to ensure that the cam handle (4) will not fall into the elongated hole.

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