Novel mechanical clamp of metal filament tension testing machine for experiment

Abstract

The utility model discloses a novel metal filament tension testing machine mechanical clamp for experiment, which comprises a fixed seat, a fixed clamping block is arranged on the surface of the fixed seat, a fixed block distributed opposite to the fixed clamping block is arranged on the surface of the fixed seat, the surface of the fixed block is in threaded connection with a screw rod, and the screw rod is in threaded connection with the fixed clamping block. The end of the screw rod is rotationally connected with a movable clamping block distributed opposite to the fixed clamping block, and sawtooth grooves meshed with each other are formed in the opposite sides of the movable clamping block and the fixed clamping block. According to the utility model, the defects that the metal filament sample is damaged due to overlarge pressure, so that the tension test is invalid, the metal filament sample is broken at a clamp opening in the stretching process, and an effective tension value cannot be accurately made are effectively overcome, the equipment cost is reduced, the personnel operation is simple, the equipment use efficiency is improved, and the production cost is reduced. And the reliability of test results is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thin wire tension test, in particular to a novel mechanical clamp of a metal thin wire tension tester for experiments. Background Art

[0002] Similar mechanical clamps on the market with a diameter of less than one millimeter will cause the metal filament to break due to excessive pressure, making the tensile test invalid. During the stretching process, the metal filament specimens break at the fixture mouth, and it is impossible to accurately produce an effective tensile value. During the stretching process, when the tensile force on the metal filament is greater than 100N, the mechanical clamp cannot reliably clamp the specimen, causing the specimen to slip and make the test invalid. Utility Model Content

[0003] The utility model aims to provide a novel mechanical fixture of a metal filament tensile testing machine for experiments, so as to solve the technical problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a new type of mechanical clamp for an experimental metal filament tensile testing machine, comprising a fixed seat, a fixed clamping block is arranged on the surface of the fixed seat, a fixed block opposite to the fixed clamping block is arranged on the surface of the fixed seat, a screw is threadedly connected to the surface of the fixed block, a movable clamping block opposite to the fixed clamping block is rotatably connected to the end of the screw, and a serrated groove that meshes with each other is arranged on the opposite side of the movable clamping block and the fixed clamping block.

[0005] Preferably, a mounting block is disposed at the top of the fixing seat and is vertically distributed therewith, and a mounting hole is disposed on the surface of the mounting block.

[0006] Preferably, a first threaded hole is provided on the surface of the fixing block, and the screw rod is threadedly connected to the first threaded hole.

[0007] Preferably, a rotating rod is provided at one end of the screw rod away from the movable clamping block.

[0008] Preferably, a second threaded hole is provided in the middle part of the side wall of the movable clamp block, and a mounting hole rotatably connected to the end of the screw is provided in the middle part of the back of the movable clamp block, the second threaded hole is connected to the mounting hole, and a top screw is threadedly connected to the inner thread of the second threaded hole, and the end of the top screw extends into the interior of the mounting hole and contacts the side wall of the screw.

[0009] The utility model is a new type of mechanical fixture for metal wire tensile testing machine for experiments, which has the following advantages:

[0010] The utility model effectively solves the problem that metal filament samples are damaged due to excessive pressure, which makes the tensile test invalid. During the stretching process, the metal filament samples are broken at the fixture mouth, making it impossible to accurately produce an effective tensile value. The utility model reduces the equipment cost, is simple to operate, improves the equipment use efficiency, and improves the reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 for Figure 1 Exploded diagram of .

[0014] Explanation of markings in the figure: 1. Fixed seat; 2. Mounting block; 3. Mounting hole; 4. Fixed clamping block; 5. Fixed block; 6. Movable clamping block; 7. Screw; 8. Rotating rod; 9. First threaded hole; 10. Sawtooth groove; 11. Second threaded hole. DETAILED DESCRIPTION

[0015] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0016] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0018] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0019] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0020] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a new type of mechanical fixture for experimental metal wire tensile testing machine of the utility model in conjunction with the accompanying drawings.

[0021] like Figure 1-2As shown, the utility model is a novel mechanical clamp for a metal filament tensile testing machine for experiments, comprising a fixed seat 1, a mounting block 2 vertically arranged on the top of the fixed seat 1, a mounting hole 3 arranged on the surface of the mounting block 2, and the arrangement of the mounting block 2 and the mounting hole 3 facilitates the installation and fixing of the clamp. A fixed clamping block 4 is arranged on the surface of the fixed seat 1, a fixed block 5 arranged opposite to the fixed clamping block 4 is arranged on the surface of the fixed seat 1, a screw 7 is threadedly connected to the surface of the fixed block 5, and a movable clamping block 6 arranged opposite to the fixed clamping block 4 is rotatably connected to the end of the screw 7, a first threaded hole 9 is arranged on the surface of the fixed block 5, the screw 7 is threadedly connected to the first threaded hole 9, and the first threaded hole 9 cooperates with the screw 7, so that the screw 7 can drive the movable clamping block 6 to move by rotating the screw 7. A rotating rod 8 is arranged at the end of the screw 7 away from the movable clamping block 6, and the arrangement of the rotating rod 8 facilitates the rotation of the screw 7, which is more labor-saving. The movable clamp block 6 is provided with a serrated groove 10 that meshes with each other on the opposite side of the fixed clamp block 4, and a second threaded hole 11 is provided in the middle part of the side wall of the movable clamp block 6. A mounting hole rotatably connected to the end of the screw rod 7 is provided in the middle part of the back of the movable clamp block 6. The second threaded hole 11 is connected to the mounting hole, and a top screw is connected to the inner thread of the second threaded hole 11. The end of the top screw extends to the inside of the mounting hole and contacts with the side wall of the screw rod 7. Through the setting of the second threaded hole 11 and the top screw, when the movable clamp block 6 and the fixed clamp block 4 clamp the metal filament, the top screw can be tightened in the second threaded hole 11 so that the end of the top screw is in close contact with the side wall of the screw rod 7, thereby locking and fixing the screw rod 7, which can effectively prevent the screw rod 7 from loosening and causing clamping failure, thereby improving the stability and reliability of the structure.

[0022] The clamp is used for clamping metal filaments with a diameter less than 1 mm for tensile testing. The metal filaments are clamped in the serrated clamp formed by the fixed clamp block 4 and the movable clamp block 6. After the clamp is tightened, the metal filament sample will not break and can be effectively clamped. The metal filament is wound around the arc mouth and will not break during the stretching process, thereby achieving reliable conditions for tensile testing.

[0023] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A new type of mechanical fixture for metal wire tensile testing machine for experiments, characterized by: The invention comprises a fixed seat (1), a fixed clamping block (4) is arranged on the surface of the fixed seat (1), a fixed block (5) arranged opposite to the fixed clamping block (4) is arranged on the surface of the fixed seat (1), a screw rod (7) is threadedly connected to the surface of the fixed block (5), an end of the screw rod (7) is rotatably connected to a movable clamping block (6) arranged opposite to the fixed clamping block (4), and a sawtooth groove (10) which meshes with each other is arranged on the opposite side of the movable clamping block (6) and the fixed clamping block (4).

2. A novel mechanical fixture for a metal wire tensile testing machine for experiments according to claim 1, characterized in that: The top of the fixing seat (1) is provided with a mounting block (2) distributed vertically therewith, and the surface of the mounting block (2) is provided with a mounting hole (3).

3. The novel mechanical fixture for metal wire tensile testing machine for experiments according to claim 1 is characterized by: A first threaded hole (9) is provided on the surface of the fixing block (5), and the screw rod (7) is threadedly connected to the first threaded hole (9).

4. The novel mechanical fixture for metal wire tensile testing machine for experiments according to claim 1 is characterized by: A rotating rod (8) is provided at one end of the screw rod (7) away from the movable clamping block (6).

5. The novel mechanical fixture for metal wire tensile testing machine for experiments according to claim 1 is characterized by: A second threaded hole (11) is provided in the middle of the side wall of the movable clamping block (6), and a mounting hole rotatably connected to the end of the screw rod (7) is provided in the middle of the back of the movable clamping block (6). The second threaded hole (11) is connected to the mounting hole, and a top screw is connected to the inner thread of the second threaded hole (11), and the end of the top screw extends into the interior of the mounting hole and contacts the side wall of the screw rod (7).

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