Metal impact test device

Abstract

The utility model relates to the technical field of testing devices, in particular to a metal impact testing device which comprises a bottom plate and two vertical rods fixed on the bottom plate, an impact assembly is connected between the two vertical rods in a sliding mode, a connecting plate is further fixed between the tops of the two vertical rods, and the impact assembly is connected with the connecting plate in a sliding mode. The connecting plate is provided with a control assembly used for lifting and releasing the impact assembly. According to the utility model, the outer sides of the two vertical rods are respectively provided with one stop assembly, so that the rebound problem of the impact assembly after the impact test is effectively solved. After an impact assembly carries out an impact test on a metal piece, the impact assembly often rebounds. In order to avoid the influence of secondary or multiple impact caused by rebound on the accuracy of a test result, the stop assembly is designed to be used for accurately aligning and preventing the rebound of the impact assembly, and the impact assembly is positioned by the stop assembly after completing the impact action, so that the impact on the metal piece is avoided again, and the test efficiency is improved. Therefore, the overall safety of the test and the accuracy of the result are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test devices, in particular to a test device for metal impact. Background Art

[0002] The metal impact test is an important method for testing the mechanical properties of materials, used to evaluate the resistance of metal materials under dynamic load. In practical engineering applications, metal materials often need to withstand high-speed and high-energy impact loads.

[0003] At present, most of the test devices adopt the method of lifting the inflatable head with a winding rope. After the impact head falls and impacts the metal part, the test is completed. Specifically, reference can be made to a metal material impact test bench disclosed in the Chinese Patent Publication No. "CN214472451U".

[0004] However, in the actual operation process of the suspension rope type lifting impact, when the impact head collides with the metal part, the metal head will rebound, resulting in the impact head hitting the metal part multiple times, thus affecting the accuracy of the test. Based on this, in order to further optimize the accuracy and stability of the experiment, we propose a test device for metal impact. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above-mentioned disadvantages in the prior art, and to propose a test device for metal impact.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Design a test device for metal impact, including a bottom plate and two vertical rods fixed on the bottom plate. An impact assembly is slidably connected between the two vertical rods. A connecting plate is also fixed between the tops of the two vertical rods. A control assembly for lifting and releasing the impact assembly is arranged on the connecting plate;

[0008] Wherein, a stop assembly is also arranged inside the vertical rod, and the stop assembly is used for stopping and positioning the impact assembly after it rebounds.

[0009] Furthermore, the impact assembly includes a sliding seat slidably connected between the two vertical rods, and an impact head is fixedly installed below the sliding seat.

[0010] Furthermore, the control assembly includes a mounting frame fixed on the connecting plate. A motor and a wire reel are respectively fixed on the mounting frame. The shaft end of the motor is connected to a first belt pulley through an electromagnetic clutch. The shaft end of the wire reel is fixed with a second belt pulley. The first belt pulley and the second belt pulley are driven by a synchronous belt;

[0011] Among them, a lifting rope is wound around the outer side of the wire reel, and one end of the lifting rope penetrates through the connecting plate and is connected to the sliding seat.

[0012] Further, the stop assembly includes a guide groove opened on the side of the vertical rod. A guide block slides in the inner side of the guide groove through a first spring. A wedge rod is movably inserted into an end surface of the guide block perpendicular to its moving direction. A second spring is arranged between the wedge rod and the guide block.

[0013] Further, a hole is opened on the outer side of the vertical rod and below the guide groove. A stop rod is movably inserted into the hole. A third spring is arranged between the stop rod and the hole of the vertical rod. Among them, a positioning rod inserted into the hole is fixed at the bottom of the guide block, and a positioning port adapted to the positioning rod is opened on the end surface of the stop rod.

[0014] Further, a limiting groove is opened on the inner wall of the guide groove, and a sliding block fixed and slidable in the limiting groove is arranged on the side of the guide block.

[0015] For a metal impact test device proposed by the present utility model, the beneficial effects are as follows: In the present utility model, by arranging a stop assembly on the outer side of each of the two vertical rods, the problem of the rebound of the impact assembly after the impact test is effectively solved. After the impact assembly conducts an impact test on a metal part, it often rebounds. In order to avoid the secondary or multiple impacts caused by the rebound and affect the accuracy of the test results, the stop assembly is designed to accurately align and prevent the rebound of the impact assembly. After the impact assembly completes the impact action, it is positioned by the stop assembly to ensure that it will not impact the metal part again, thereby improving the overall safety of the test and the accuracy of the results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a cross-sectional view of the present utility model;

[0018] Figure 3 is Figure 2 an enlarged schematic structural view of Area A of

[0019] In the figure: 1, base plate; 2, vertical rod; 3, impact assembly; 31, sliding seat; 32, impact head; 4, connecting plate; 5, control assembly; 51, mounting rack; 52, motor; 53, wire reel; 6, stop assembly; 61, guide groove; 611, limiting groove; 62, first spring; 63, guide block; 64, wedge rod; 65, second spring; 66, stop rod; 67, third spring; 68, positioning rod; 69, positioning port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Referring to Figures 1-3 As an embodiment of the present invention, specifically, it discloses a test device for metal impact. The test device includes a bottom plate 1 and two vertical rods 2 fixed on the bottom plate 1. Of course, a support frame can also be installed on the bottom plate 1 to support the metal part to be tested. The specific structure can refer to the existing technology and will not be elaborated here. A shock component 3 is slidably connected between the two vertical rods 2. A connecting plate 4 is fixed between the tops of the two vertical rods 2. A control component 5 for lifting and releasing the shock component 3 is arranged on the connecting plate 4;

[0022] Wherein, a stop component 6 is further arranged inside the vertical rod 2, and the stop component 6 is used for stop positioning after the shock component 3 rebounds.

[0023] In some embodiments, the shock component 3 in the present invention includes a sliding seat 31 slidably connected between the two vertical rods 2. An impact head 32 is fixedly installed below the sliding seat 31. The sliding seat 31 drives the impact head 32 to move up and down to realize the impact test on the metal part.

[0024] Furthermore, in this embodiment, the control component 5 includes a mounting frame 51 fixed on the connecting plate 4. A motor 52 and a wire winding disc 53 are respectively fixed on the mounting frame 51. The shaft end of the motor 52 is connected with a first belt pulley through an electromagnetic clutch. The electromagnetic clutch is the existing technology and its structure will not be elaborated here. The shaft end of the wire winding disc 53 is fixed with a second belt pulley. The first belt pulley and the second belt pulley are driven by a synchronous belt; wherein, a lifting rope is wound outside the wire winding disc 53. One end of the lifting rope passes through the connecting plate 4 and is connected with the sliding seat 31.

[0025] Specifically, in this embodiment, the electromagnetic clutch is arranged to realize the transmission between the first belt pulley and the shaft end of the motor 52. The design purpose of adopting this structure is that when the electromagnetic clutch works, the motor 52 can drive the first belt pulley to rotate. In this way, through the synchronous belt and the second belt pulley, the wire winding disc 53 is driven to wind up, so as to realize the winding of the lifting rope, so that the whole shock component 3 can be lifted to the required height. After that, when the electromagnetic clutch is disengaged, under the action of the gravity of the shock component 3, it starts to fall freely downward, and then impacts and collides with the metal part below to complete the impact test.

[0026] In some embodiments, the stop assembly 6 in the present utility model includes a guide groove 61 formed on the side of the vertical rod 2. A guide block 63 is slidably disposed inside the guide groove 61 through a first spring 62. A wedge-shaped rod 64 is movably inserted into an end face of the guide block 63 perpendicular to its moving direction. A second spring 65 is disposed between the wedge-shaped rod 64 and the guide block 63. Preferably, in this embodiment, the inclined surface of the wedge-shaped rod 64 faces upward, so as to be able to move inward after contacting the sliding seat 31.

[0027] Based on the above embodiments, in the present utility model, a hole is formed outside the vertical rod 2 and below the guide groove 61. A stop rod 66 is movably inserted into the hole. A third spring 67 is disposed between the stop rod 66 and the hole of the vertical rod 2. Among them, a positioning rod 68 inserted into the hole is fixed to the bottom of the guide block 63, and a positioning port 69 adapted to the positioning rod 68 is formed on the end face of the stop rod 66.

[0028] That is to say, in this embodiment, when the impact assembly 3 drops downward to start the impact test, when the sliding seat 31 slides downward, it will contact the wedge-shaped rod 64 and move inward. At this time, the entire guide block 63 will not move. After that, when the impact assembly 3 impacts the metal part, it will rebound. When rebounding, the sliding seat 31 will contact the bottom of the wedge-shaped rod 64 and push the wedge-shaped rod 64 upward. At this time, under the thrust of the first spring 62, deceleration buffering of the sliding seat 31 is achieved. At the same time, since the wedge-shaped rod 64 drives the guide block 63 to move upward, the positioning rod 68 at the bottom of the guide block 63 is separated from the positioning port 69 on the stop rod 66. At this time, under the push of the third spring 67, the stop rod 66 pops out outward, and then the stop of the downward sliding position of the sliding seat 31 is realized, so as to prevent the impact head 32 from hitting the metal part again.

[0029] Considering the sliding limit and guidance of the guide block 63, in the embodiment of the present utility model, a limiting groove 611 is formed on the inner wall of the guide groove 61. A sliding block fixed to the side of the guide block 63 is slidably disposed in the limiting groove 611. Preferably, the sliding block in this embodiment can be set as a rectangular block, so as to avoid the circumferential rotation of the guide block 63 and improve the stability of its up and down sliding.

[0030] In summary, in the present utility model, by providing a stop assembly 6 on the outer side of each of the two vertical rods 2, the problem of the rebound of the impact assembly 3 after the impact test is effectively solved. After the impact assembly 3 conducts an impact test on a metal part, it often rebounds. To avoid the secondary or multiple impacts caused by the rebound and affect the accuracy of the test results, the stop assembly 6 is designed to accurately align and prevent the rebound of the impact assembly 3. After the impact assembly 3 completes the impact action, it is positioned by the stop assembly 6 to ensure that it will not impact the metal part again, thereby improving the overall safety of the test and the accuracy of the results.

[0031] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A test device for metal impact, comprising a bottom plate (1) and two vertical rods (2) fixed to the bottom plate (1), characterized in that: A shock component (3) is slidably connected between the two vertical rods (2). A connecting plate (4) is further fixed between the tops of the two vertical rods (2). A control component (5) for lifting and releasing the shock component (3) is arranged on the connecting plate (4). Among them, a stop component (6) is further arranged inside the vertical rod (2), and the stop component (6) is used for stop positioning of the shock component (3) after bouncing back.

2. The test device for metal impact according to claim 1, wherein: The shock component (3) includes a sliding seat (31) slidably connected between the two vertical rods (2), and a shock head (32) is fixedly installed below the sliding seat (31).

3. The test device for metal impact according to claim 2, characterized in that: The control component (5) includes a mounting frame (51) fixed on the connecting plate (4). A motor (52) and a wire reel (53) are respectively fixed on the mounting frame (51). A first pulley is connected to the shaft end of the motor (52) through an electromagnetic clutch. A second pulley is fixed to the shaft end of the wire reel (53). The first pulley and the second pulley are driven by a synchronous belt. Among them, a lifting rope is wound around the outside of the wire reel (53), and one end of the lifting rope passes through the connecting plate (4) and is connected to the sliding seat (31).

4. The test device for metal impact according to claim 1, wherein: The stop component (6) includes a guide groove (61) opened on the side of the vertical rod (2). A guide block (63) slides inside the guide groove (61) through a first spring (62). A wedge-shaped rod (64) is movably inserted into the end surface of the guide block (63) perpendicular to its moving direction. A second spring (65) is arranged between the wedge-shaped rod (64) and the guide block (63).

5. The test device for metal impact according to claim 4, characterized in that: A hole is opened outside the vertical rod (2) and below the guide groove (61). A stop rod (66) is movably inserted into the hole. A third spring (67) is arranged between the stop rod (66) and the hole of the vertical rod (2). Among them, a positioning rod (68) inserted into the hole is fixed to the bottom of the guide block (63). A positioning port (69) adapted to the positioning rod (68) is opened on the end surface of the stop rod (66).

6. The test device for metal impact according to claim 4, wherein: A limiting groove (611) is opened on the inner wall of the guide groove (61), and a sliding block fixed to the side of the guide block (63) slides in the limiting groove (611).

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