Metal material impact testing machine

Abstract

The utility model relates to a metal material impact testing machine which comprises a testing machine main body and a pendulum bob rotationally arranged on the testing machine main body, a base is arranged on the testing machine main body, and a placing table is arranged on the base; the jaw seats are arranged on the two sides of the placement table in a sliding manner; the two-way screw rod is rotationally arranged in the placing table, and the position between the jaw seats is adjusted through the two-way screw rod; by introducing the jaw seat arranged in a sliding mode and a bidirectional lead screw adjusting mechanism, flexible placement of metal materials of different sizes is achieved, the universality and adaptability of the testing machine are remarkably improved, meanwhile, due to the innovative design of the centering strip, through the combination of a notch in the cross rod and a rotating opening in the centering strip, the metal materials of different sizes can be conveniently and rapidly placed, and the testing efficiency is improved. Through flexible rotation of the centering strip in the range of 0-90 degrees, a user is allowed to easily align the centering strip with a preset notch in a sample, so that accurate centering of the sample in an impact test is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of impact testing technology, specifically relating to an impact testing machine for metallic materials. Background Technology

[0002] In the research and manufacturing of metallic materials, impact testing is an important means of evaluating the toughness, fracture toughness and energy absorption capacity of materials under dynamic loads. The pendulum impact testing machine uses the energy difference before and after the pendulum impacts the specimen to determine the impact energy consumed by the specimen. Every moving object has energy, and the impact phenomenon is actually the conversion of energy between objects, or the process of energy transfer. The toughness of a material is measured by the level of energy it can accept.

[0003] Traditional metal impact testing machines require adjusting the jaw position to place the specimen during use. During debugging, the jaw seats need to be adjusted sequentially, and it is also difficult to ensure that the two jaw seats move the same distance. In addition, after the specimen is placed, an additional centering plate is needed for centering and positioning. To address these issues, a new metal impact testing machine is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a metal material impact testing machine that is easy to adjust in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A metal material impact testing machine includes a testing machine body and a pendulum rotatably mounted on the testing machine body. A base is provided on the testing machine body, and a placement platform is provided on the base.

[0007] It also includes:

[0008] A jaw holder, wherein the jaw holder is slidably disposed on both sides of the placement platform;

[0009] A bidirectional lead screw is rotatably mounted inside the placement platform, and the position between the jaw seats is adjusted by the bidirectional lead screw.

[0010] The center bar is rotatably mounted on the placement platform.

[0011] As a further optimization of this utility model, a jaw bar is provided on the jaw seat by bolts, and an extension plate is provided on the jaw seat. The extension plate is threaded onto both ends of the bidirectional lead screw.

[0012] As a further optimization of this utility model, the placement platform is provided with placement plates on both sides, and the placement plates are provided with receiving cavities. The extension plate is slidably disposed in the receiving cavity through a bidirectional screw, and the extension plate penetrates the side wall of the placement plate.

[0013] As a further optimization of this utility model, the jaw seat is slidably mounted on the placement plate, and the jaw seat is connected to the placement table through the placement plate.

[0014] As a further optimization of this utility model, a crossbar is fixedly arranged between the placement plates, and the centering strip is rotatably mounted on the placement platform through the crossbar.

[0015] As a further optimization of this utility model, the centering bar has a rotating opening with an opening angle of 270 degrees, the crossbar has a notch, and the rotating opening is fitted at the notch position.

[0016] The beneficial effects of this utility model are as follows:

[0017] Unlike existing technologies, this machine incorporates a sliding jaw seat and a two-way screw adjustment mechanism, enabling flexible placement of metal materials of different sizes. This significantly improves the versatility and adaptability of the testing machine. Furthermore, the innovative centering bar design, combining the notch on the crossbar with the rotating opening on the centering bar, allows users to easily align the centering bar with the preset notch on the specimen through flexible rotation within the 0-90 degree range. This ensures precise centering of the specimen during impact testing. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the placement platform structure of this utility model;

[0020] Figure 3 This utility model is based on Figure 2 Schematic diagram of the cross-section structure along the LL direction;

[0021] Figure 4 This is a schematic diagram of the extension plate connection structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the center strip connection structure of this utility model.

[0023] In the diagram: 1. Main body of the testing machine; 2. Pendulum; 3. Base; 4. Placement platform; 41. Placement plate; 42. Receiving cavity; 5. Jaw seat; 51. Jaw bar; 52. Extension plate; 6. Centering bar; 61. Rotation port; 62. Crossbar; 63. Notch; 7. Double-acting lead screw. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Example 1

[0026] like Figure 1 - Figure 5 As shown, a metal material impact testing machine includes a testing machine body 1 and a pendulum 2 rotatably mounted on the testing machine body 1. A base 3 is provided on the testing machine body 1, and a placement platform 4 is provided on the base 3. The placement platform 4 on the base 3 provides stable support for the entire testing process.

[0027] It also includes:

[0028] Jaw base 5, the jaw base 5 is slidably disposed on both sides of the placement platform 4;

[0029] The bidirectional lead screw 7 is rotatably mounted inside the placement platform 4, and the position between the jaw seats 5 is adjusted by the bidirectional lead screw 7.

[0030] The center bar 6 is rotatably mounted on the placement platform 4.

[0031] A jaw bar 51 is bolted onto the jaw seat 5, and an extension plate 52 is also mounted on the jaw seat 5. The extension plate 52 is threaded onto both ends of the bidirectional lead screw 7. The bidirectional lead screw 7 allows the extension plate 52 to move synchronously and at the same distance, thereby enabling the jaw seat 5 to accommodate metal materials of more sizes.

[0032] Placement plates 41 are provided on both sides of the placement platform 4. A receiving cavity 42 is provided in the placement plate 41. An extension plate 52 is slidably disposed in the receiving cavity 42 by a bidirectional lead screw 7. The extension plate 52 penetrates the side wall of the placement plate 41.

[0033] The jaw seat 5 is slidably mounted on the placement plate 41. The jaw seat 5 is connected to the placement platform 4 through the placement plate 41. The placement plate 41 allows the metal material to be suspended in the air, so that the pendulum 2 can impact the metal material.

[0034] A crossbar 62 is fixedly installed between the placement plates 41, and the centering bar 6 is rotatably mounted on the placement platform 4 via the crossbar 62.

[0035] The centering bar 6 has a rotating opening 61 with an opening angle of 270 degrees. The crossbar 62 has a notch 63. The rotating opening 61 is fitted into the notch 63. By matching the rotating opening 61 with the notch 63, the centering bar 6 can rotate up to 90 degrees to ensure that the metal material can be tightly attached to the side wall of the jaw seat 5 when centering.

[0036] It should be noted that, during operation, this metal material impact testing machine has jaw seats 5 slidably arranged on both sides of the placement table 4, and a bidirectional lead screw 7 rotatably arranged inside the placement table 4. The position between the jaw seats 5 can be adjusted by rotating the bidirectional lead screw 7 with a knob to accommodate metal materials of different sizes. A crossbar 62 is arranged between the placement plates 41, and a centering bar 6 is rotatably arranged on the placement table 4 via the crossbar 62. The centering bar 6 has a rotating opening 61 with an opening angle of 270 degrees, and a notch 63 is opened on the crossbar 62. The rotating opening 61 is fitted into the notch 63, which can limit the rotation angle of the centering bar 6 to between 0 and 90 degrees. After the centering bar 6 is folded over, the centering bar 6 is aligned with the notch pre-made in the middle of the metal material placed on the jaw seat 5 to complete the centering operation. Then, the pendulum 2 is started to impact the metal, and the impact energy consumption of the metal material is determined by the energy difference before and after the impact of the pendulum 2.

[0037] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A metal material impact testing machine, comprising a testing machine body (1) and a pendulum (2) rotatably mounted on the testing machine body (1), wherein a base (3) is provided on the testing machine body (1), characterized in that: A placement platform (4) is provided on the base (3); It also includes: Jaw seat (5), the jaw seat (5) is slidably disposed on both sides of the placement platform (4); A bidirectional lead screw (7) is rotatably mounted inside the placement platform (4), and the position between the jaw seats (5) is adjusted by the bidirectional lead screw (7); The center bar (6) is rotatably mounted on the placement platform (4).

2. The impact testing machine for metallic materials according to claim 1, characterized in that: The jaw seat (5) is provided with jaw bars (51) by bolts, and the jaw seat (5) is provided with extension plates (52). The extension plates (52) are threaded onto both ends of the bidirectional lead screw (7).

3. The impact testing machine for metallic materials according to claim 2, characterized in that: The placement platform (4) is provided with placement plates (41) on both sides. The placement plate (41) has a receiving cavity (42) inside. The extension plate (52) is slidably disposed in the receiving cavity (42) by means of a bidirectional screw (7). The extension plate (52) penetrates the side wall of the placement plate (41).

4. The impact testing machine for metallic materials according to claim 3, characterized in that: The jaw seat (5) is slidably disposed on the placement plate (41), and the jaw seat (5) is connected to the placement table (4) through the placement plate (41).

5. The impact testing machine for metallic materials according to claim 4, characterized in that: A crossbar (62) is fixedly arranged between the placement plates (41), and the centering bar (6) is rotatably mounted on the placement platform (4) via the crossbar (62).

6. The impact testing machine for metallic materials according to claim 5, characterized in that: The centering bar (6) has a rotating opening (61) with an opening angle of 270 degrees. The crossbar (62) has a notch (63) and the rotating opening (61) is fitted into the notch (63).

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