Cantilever beam impact testing machine

Abstract

The utility model discloses a cantilever beam impact testing machine, and relates to the technical field of testing machines. The cantilever beam impact testing machine comprises a testing machine base, a cantilever beam body is fixedly connected to the testing machine base, an electric push rod is arranged on the cantilever beam body, an impact head is arranged at the output end of the electric push rod, and a positioning mechanism used for limiting a test sample is arranged above the testing machine base. The positioning mechanism comprises a positioning seat fixedly connected to the testing machine base, and the positioning seat is provided with a clamping assembly and an impact positioning assembly. According to the cantilever beam impact testing machine, through the design of the positioning mechanism, during operation, the position of the impact positioning assembly is firstly adjusted, so that the impact width position of a test sample is quickly clamped to form positioning, then the test sample is clamped and positioned by utilizing the clamping assembly, and the toughness of the test sample is quickly tested; the test sample can be conveniently and quickly positioned, and the operation process is time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of testing machines, in particular to a cantilever beam impact testing machine. Background Art

[0002] The cantilever beam impact testing machine is a device specially used to test the impact toughness of non-metallic materials. It is mainly used to measure the impact toughness of non-metallic materials such as hard plastics, reinforced nylon, and electrical insulating materials.

[0003] The working principle of the existing impact testing machine is to drive the movement of the detection head through an electric mechanism, and use the detection head to hit the plastic parts to be tested, so as to measure the impact resistance of the sample. The electric mechanism is equipped with a digital sensor, which can accurately measure the position and speed of the detection head, so as to calculate the impact strength and energy and other parameters of the sample. When the traditional cantilever beam impact testing machine fixes the position of the sample, it is usually clamped with a simple clamp. When the test is repeated many times, the clamping process is inconvenient to operate. This is mainly because during the test, the position must be adjusted each time the sample is changed so that the sample is aligned with the test position, which is time-consuming and laborious. In view of the shortcomings of the prior art, the utility model provides a cantilever beam impact testing machine to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a cantilever beam impact testing machine. Through the positioning mechanism design, during operation, the position of the impact positioning component is first adjusted so that the impact width position of the test sample is quickly clamped and positioned, and then the test sample is clamped and positioned using the clamping component. Finally, an electric push rod is used to push the impact head to impact the test position of the test sample, so that the toughness test of the sample can be quickly performed. When the test is repeated multiple times, it is convenient to quickly position the test sample, and the operation process saves time and effort.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a cantilever beam impact testing machine, including a testing machine base, a cantilever beam body is fixedly connected to the testing machine base, an electric push rod is provided on the cantilever beam body, an impact head is provided at the output end of the electric push rod, and a positioning mechanism for providing a limit for the test sample is provided above the testing machine base;

[0006] The positioning mechanism comprises a positioning seat fixedly connected to the base of the testing machine, and the positioning seat is provided with a clamping assembly and an impact positioning assembly;

[0007] The clamping assembly includes a pressing plate that is clamped on the positioning seat;

[0008] The impact positioning assembly comprises a positioning column movably clamped inside the positioning seat.

[0009] Preferably, a guide rail rod is provided on the positioning seat, an adjustment arm is slidably connected to the guide rail rod, and the pressure plate is fixedly connected to the adjustment arm.

[0010] Preferably, a baffle is fixedly connected to the guide rail rod, a screw is threadedly connected to the baffle, and the screw is rotatably connected to the adjustment arm.

[0011] Preferably, a rotating handle is provided on the screw rod.

[0012] Preferably, an impact groove corresponding to the position of the impact head is formed on the positioning seat, and a pressure groove corresponding to the position of the pressure plate is formed on the positioning seat.

[0013] Preferably, a positioning groove corresponding to the position of the positioning column is formed on the positioning seat.

[0014] Preferably, a nut seat is provided on the positioning seat, a clamping bolt is threadedly connected to the nut seat, and the clamping bolt is clamped with the positioning column.

[0015] The utility model discloses a cantilever beam impact testing machine, which has the following beneficial effects:

[0016] The cantilever beam impact testing machine is designed with a positioning mechanism. During operation, the position of the impact positioning component is first adjusted so that the impact width position of the test sample is quickly clamped and positioned. The test sample is then clamped and positioned using the clamping component. Finally, an electric push rod is used to push the impact head to impact the test position of the test sample, so that the toughness test of the sample can be quickly performed. When the test is repeated for many times, it is convenient to quickly position the test sample, and the operation process is time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of positioning the test specimen of the utility model;

[0020] Figure 3 This is a schematic diagram of adjusting the pressing plate of the utility model;

[0021] Figure 4 It is a disassembly schematic diagram of the positioning column of the utility model.

[0022] In the figure: 1. testing machine base; 101. cantilever beam body; 2. electric push rod; 201. impact head; 3. positioning seat; 301. impact groove; 302. pressure groove; 303. positioning groove; 4. test specimen; 5. pressure plate; 501. guide rod; 502. adjustment arm; 503. baffle; 504. screw rod; 505. turning handle; 6. positioning column; 601. nut seat; 602. clamping bolt. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The embodiment of the present application provides a cantilever beam impact testing machine, which solves the problem that traditional cantilever beam impact testing machines usually use simple clamps to clamp samples when fixing the position. When the test is repeated many times, the clamping process is inconvenient to operate. This is mainly because during the test, the position must be adjusted each time the sample is changed so that the sample is aligned with the test position, which is time-consuming and laborious.

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] The utility model embodiment discloses a cantilever beam impact testing machine, according to the attached Figure 1-4 As shown, the test machine base 1 includes a cantilever beam body 101 fixedly connected to the test machine base 1, an electric push rod 2 is arranged on the cantilever beam body 101, an impact head 201 is arranged at the output end of the electric push rod 2, and a positioning mechanism for providing a limit for the test sample 4 is arranged above the test machine base 1;

[0027] The positioning mechanism includes a positioning seat 3 fixedly connected to the testing machine base 1, and an impact groove 301 corresponding to the position of the impact head 201 is formed on the positioning seat 3;

[0028] The positioning seat 3 is provided with a clamping assembly and an impact positioning assembly;

[0029] When testing the toughness of the test sample 4, first adjust the position of the impact positioning assembly so that the test sample 4 is quickly snapped into position, and then use the clamping assembly to clamp and position the test sample 4, so that the electric push rod 2 is used to push the impact head 201 to impact the test sample 4 to perform a sample toughness test.

[0030] The clamping assembly includes a pressing plate 5 which is clamped on the positioning seat 3, a pressing groove 302 corresponding to the position of the pressing plate 5 is opened on the positioning seat 3, a guide rod 501 is provided on the positioning seat 3, an adjusting arm 502 is slidably connected to the guide rod 501, the pressing plate 5 is fixedly connected to the adjusting arm 502, a baffle 503 is fixedly connected to the guide rod 501, a screw rod 504 is threadedly connected to the baffle 503, the screw rod 504 is rotatably connected to the adjusting arm 502, and a rotating handle 505 is provided on the screw rod 504;

[0031] The overall structure of the clamping assembly is simple. When clamping and positioning the test sample 4, the handle 505 can be directly rotated. The rotating handle 505 drives the screw rod 504 to rotate, and the screw rod 504 drives the adjustment arm 502 to move along the guide rod 501. The adjustment arm 502 drives the pressure plate 5 to move, and finally the pressure plate 5 clamps and limits the test sample 4.

[0032] The impact positioning assembly includes a positioning column 6 movably clamped inside the positioning seat 3. The positioning seat 3 is provided with a positioning groove 303 corresponding to the position of the positioning column 6. The positioning seat 3 is provided with a nut seat 601. The nut seat 601 is threadedly connected with a clamping bolt 602, and the clamping bolt 602 is clamped with the positioning column 6.

[0033] The overall structure of the impact positioning assembly is simple, and the position adjustment of the positioning column 6 is easy to achieve. When adjusting the positioning column 6, first loosen the clamping bolt 602, and then push the positioning column 6 so that the positioning column 6 slides along the inside of the positioning groove 303 to achieve position adjustment. Through the position adjustment of the positioning column 6, the test sample 4 can be positioned at the width position that needs to be impacted during the test.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A cantilever beam impact testing machine, comprising a testing machine base (1), a cantilever beam body (101) being fixedly connected to the testing machine base (1), an electric push rod (2) being arranged on the cantilever beam body (101), an impact head (201) being arranged at the output end of the electric push rod (2), characterized in that: A positioning mechanism for limiting the position of the test specimen (4) is provided above the test machine base (1); The positioning mechanism comprises a positioning seat (3) fixedly connected to a testing machine base (1), and the positioning seat (3) is provided with a clamping component and an impact positioning component; The clamping assembly comprises a pressing plate (5) which is arranged on the positioning seat (3) and clamped thereon; The impact positioning assembly comprises a positioning column (6) movably clamped inside the positioning seat (3).

2. The cantilever beam impact testing machine according to claim 1, characterized in that: The positioning seat (3) is provided with a guide rail rod (501), the guide rail rod (501) is slidably connected with an adjustment arm (502), and the pressing plate (5) is fixedly connected to the adjustment arm (502).

3. The cantilever beam impact testing machine according to claim 2, characterized in that: The guide rail rod (501) is fixedly connected with a baffle (503), the baffle (503) is threadedly connected with a screw rod (504), and the screw rod (504) is rotatably connected with the adjustment arm (502).

4. The cantilever beam impact testing machine according to claim 3, characterized in that: The screw rod (504) is provided with a rotating handle (505).

5. The cantilever beam impact testing machine according to claim 1, characterized in that: The positioning seat (3) is provided with an impact groove (301) corresponding to the position of the impact head (201), and the positioning seat (3) is provided with a pressing groove (302) corresponding to the position of the pressing plate (5).

6. The cantilever beam impact testing machine according to claim 5, characterized in that: The positioning seat (3) is provided with a positioning groove (303) corresponding to the position of the positioning column (6).

7. The cantilever beam impact testing machine according to claim 6, characterized in that: The positioning seat (3) is provided with a nut seat (601), and the nut seat (601) is threadedly connected with a clamping bolt (602), and the clamping bolt (602) is clamped with the positioning column (6).

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