A new type of single and double beam direction-changing fixture for vibration experiments

Abstract

The present invention discloses a novel single-beam and double-beam direction-changeable clamp device for vibration experiments, comprising a sleeve base and a clamp shell, wherein a liftable inner shaft is arranged in the sleeve base, and the clamp shell is arranged on the upper end or side wall of the inner shaft by screws, and scissor-type clamps are arranged at both ends of the clamp shell, and a convex plate for placing a workpiece is also provided on the clamp shell, and a movable platform is provided on the convex plate, and a button for controlling the lifting of the movable platform is also provided on the side of the movable platform. The present invention solves the problem of complicated loading and unloading steps of the beam when conducting beam vibration experiments at this stage, realizes the changeable direction, optimizes the loading and unloading of the beam, makes the use process simpler, and can improve work efficiency.

Description

Technical Field

[0001] The invention relates to the field of clamp devices, in particular to a novel single-beam or double-beam direction-changeable clamp device for vibration experiments. Background Art

[0002] The current problems with existing optical platform fixtures in my country are: most of them directly place the beam between two upper and lower separated clamping blocks, and fix the beam between the planes of the two clamping blocks by tightening four screws. This method wastes time and manpower, making the experimental process cumbersome. In addition, the tightening degree of different threads is also different, which is bound to cause errors and affect the measurement results. On the other hand, the existing beam fixture can only perform vibration tests on single beams. If the interaction experiment between two beams is to be carried out, new parts can only be added to carry out the interaction experiment between two beams, and it is impossible to realize the clamping conversion between horizontal and vertical beams. Summary of the Invention

[0003] The purpose of the present invention is to solve the technical problems existing in the prior art and to provide a novel single-beam or double-beam direction-changing fixture device for vibration experiments.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a new single-beam and double-beam direction-changing fixture device for vibration experiments, including a sleeve base and a fixture shell, a liftable inner shaft is provided in the sleeve base, and the fixture shell is set on the upper end or side wall of the inner shaft by screws, and scissor-type clamps are provided at both ends of the fixture shell. A convex plate for placing a workpiece is also provided on the fixture shell, and a movable platform is provided on the convex plate. A button for controlling the lifting and lowering of the movable platform is also provided on the side of the movable platform.

[0005] Preferably, the scissor-type clamp includes a clamp base, a clamp working surface and two nut blocks, the clamp base is fixedly connected to the clamp housing, the nut blocks are connected to the clamp base and the clamp working surface through a lifting arm, and a screw is provided between the nut blocks.

[0006] Beneficial effects of the present invention:

[0007] In the present invention, a clamp shell is provided on the liftable inner shaft, which can realize free movement of the overall height of the clamp shell, thereby meeting the height requirements of the exciter when conducting vibration experiments, and the clamp shell is set on the upper end or side wall of the inner shaft by screws to realize the clamping conversion between the horizontal and vertical directions of the beam, realize the changeable direction, optimize the loading and unloading of the beam, make the use process simpler, and improve work efficiency.

[0008] The scissor-type clamp in the present invention can fix beams of different thicknesses; when a double-beam interaction experiment is required, the double-beam interaction can be carried out by combining the scissor-type clamp and the mobile platform, and the fixation of different distances between the two beams can be achieved, which solves the problem of cumbersome beam loading and unloading steps when conducting beam vibration experiments at this stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0010] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0011] Figure 2 This is a schematic diagram of the structure of a mobile platform according to a preferred embodiment of the present invention;

[0012] Figure 3 1. It is a schematic structural diagram of a scissor-type clamp according to a preferred embodiment of the present invention;

[0013] Figure 4 It is a schematic diagram of a preferred embodiment of the present invention when clamping a vertical beam.

[0014] Figure annotation:

[0015] 1- Sleeve base 2- Clamp housing 3- Clamp working surface 4- Lifting arm 5- Screw 6- Nut block 7- Bearing 8- Moving platform 9- Clamp base 10- Inner shaft 11- Raised plate 12- Button DETAILED DESCRIPTION

[0016] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They 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, they cannot be understood as limitations on the present invention.

[0018] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0019] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0020] Reference Figure 1-4 The preferred embodiment of the present invention is a novel single-beam and double-beam direction-changing fixture device for vibration experiments, comprising a sleeve base 1 and a fixture housing 2. The sleeve base 1 is provided with a liftable inner shaft 10. Specifically, refer to Figure 1 and Figure 4 The clamp housing 2 is set on the upper end or side wall of the inner shaft 10 by screws, and the clamp housing 2 passes through the sleeve base 1 and is connected to the inner shaft 10 by bolts, and the clamp housing 2 is fixed to the outside of the sleeve base 1 to clamp the beam in the vertical direction. Scissor-type clamps are provided at both ends of the clamp housing 2, and the scissor-type clamps and the clamp housing 2 are fixedly welded. A convex plate 11 for placing a workpiece is also provided on the clamp housing 2, and the convex plate 11 is connected to the clamp housing 2. The convex plate 11 is preferably in the middle position of the clamp housing 2, and a movable platform 8 is provided on the convex plate 11, one end of the movable platform 8 is fixedly welded to the convex plate 11, and a button 12 for controlling the lifting of the movable platform 8 is also provided on the side of the movable platform 8.

[0021] In the present invention, a clamp shell 2 is provided on the liftable inner shaft 10, which can realize the free movement of the overall height of the clamp shell 2, thereby meeting the requirements on the height of the exciter when conducting vibration experiments, and the clamp shell 2 is set on the upper end or side wall of the inner shaft 10 by screws to realize the clamping conversion between the horizontal and vertical directions of the beam, realize the changeable direction, optimize the loading and unloading of the beam, make the practical process simpler, and improve work efficiency; the scissor-type clamp can realize the fixation of beams of different thicknesses; when a double-beam interaction experiment is required, and through the combined use of the scissor-type clamp and the mobile platform 8, the interaction of the double beams can be carried out, and the fixation of different distances between the two beams can be realized, which solves the problem of cumbersome loading and unloading steps of the beam when conducting beam vibration experiments at this stage.

[0022] As a preferred embodiment of the present invention, it may also have the following additional technical features:

[0023] In this embodiment, the scissor-type clamp includes a clamp working surface 3, a clamp base 9 and two nut blocks 6. The clamp base 9 is fixedly connected to the clamp housing 2. The nut block 6 is connected to the clamp working surface 3 and the clamp base 9 through the lifting arm 4. The nut block 6 and the lifting arm 4 are connected through a bearing 7. The lifting arm 4 is connected to the clamp working surface 3 and the clamp base 9 through a bearing 7. A screw 5 is provided between the nut blocks 6. The interior of the scissor-type clamp is connected through the cooperation between the screw 5 and the nut block 6. The lifting arm 4 realizes the connection between the lifting arms 4 and the lifting arms 4, between the lifting arms 4 and the nut block 6, and between the lifting arms 4 and the clamp working surface 3 and the clamp base 9 through the bearing 7. By rotating the screw 5, the opening and closing of the lifting arms 4 can be realized, and then the clamp working surface 3 can be raised or lowered, thereby realizing the clamping and loosening of the beam workpiece, making the loading and unloading process of the beam simpler and improving work efficiency.

[0024] The working principle of the present invention is as follows: when a single-beam test experiment is required, the clamp working surface 3 is first raised and then the beam is placed in the convex plate 11, and the screw 5 is rotated to lower the clamp working surface 3 to clamp the beam; when a double-beam interaction experiment is conducted, the upper beam can be fixed first, and then the distance between the two beams is controlled by adjusting the moving platform 8, and finally the lower beam is fixed by moving the scissor-type clamp below; when a vertical beam experiment is conducted, the clamp shell 2 passes through the sleeve base 1 and is connected to the inner shaft 10 by bolts, and the clamp shell 2 and the integral components inside it are fixed on the outer wall of the sleeve base 1 to achieve clamping of the vertical beam.

[0025] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0026] The above descriptions are only preferred embodiments of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the scope of protection of the present invention.

Claims

1. A new type of single-beam and double-beam direction-changing fixture for vibration experiments, characterized by: The invention comprises a sleeve base (1) and a clamp housing (2), wherein an inner shaft (10) with adjustable height in a vertical direction is provided in the sleeve base (1), and the clamp housing (2) is provided on the top mounting surface or the side wall mounting surface of the inner shaft (10) by screws, and scissor-type clamps are provided at both axial ends of the clamp housing (2), and a convex plate (11) extending horizontally and perpendicular to the axis of the clamp housing (2) is also provided on the clamp housing (2), and a movable platform (8) which can be raised and lowered along the length direction of the clamp housing (2) is provided on the convex plate (11), and a button (12) for controlling its vertical displacement is provided on the side of the movable platform (8).

2. A novel single-beam or double-beam direction-changing fixture for vibration testing according to claim 1, characterized in that: The scissor-type clamp comprises a clamp base (9), a clamp working surface (3) and two symmetrically distributed nut blocks (6), wherein the clamp base (9) is fixedly connected to the clamp housing (2) by welding, and the nut blocks (6) are respectively connected to the clamp base (9) and the clamp working surface (3) by an articulated lifting arm (4), and a screw (5) with a bidirectional thread is provided between the nut blocks (6), and the rotation axis of the screw (5) is perpendicular to the axial direction of the clamp housing (2).

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