Workpiece stretching test device

Abstract

The utility model discloses a workpiece tensile testing device, which relates to the technical field of workpiece testing devices, and comprises a base, a tensile testing machine main body and a movable wheel, fixing mechanisms are symmetrically arranged between the movable wheel and the base, each fixing mechanism comprises a fixing plate and a connecting block, a connecting rod is arranged between the fixing plates, and the connecting block is sleeved on the outer wall of the connecting rod. A control rod is hinged to the outer wall of the connecting block, and a limiting mechanism is arranged above the end, deviating from the connecting block, of the control rod. According to the utility model, through the cooperation of the fixing mechanism and the limiting mechanism, the stretching test machine main body can flexibly change the supporting structure below the base according to the use and moving states, so that the stretching test machine main body can be more adaptive to stretching test machine main bodies with different state requirements; the use and movement flexibility of the tensile testing machine main body is effectively improved, and the efficiency of the tensile testing of the workpiece is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece testing devices, and particularly relates to a workpiece tensile testing device. Background Technique

[0002] During the production process of workpieces, in order to ensure the forming quality of workpieces, it is necessary to know the mechanical properties of workpieces under different stress states. Therefore, for the stress testing of workpieces, a tensile testing machine is usually used to perform tensile testing on workpieces.

[0003] In order to facilitate movement, existing tensile testing machines usually reduce friction by installing rollers on the base to achieve flexible position changes, or in order to ensure the tensile stability of the testing machine during use, support feet are installed at the bottom end of the base to reinforce the testing machine. Although the above makes the testing machine move flexibly or be used stably, the roller or fixed structure is installed and used separately, and the two cannot be flexibly changed according to the state of the testing machine, that is, the support feet cannot be quickly changed into rollers to facilitate the movement of the testing machine after the use of the testing machine, and vice versa, which makes the use and movement of the testing machine have certain limitations, reduces the flexible support of the structure of the testing machine in the use and movement states, and also reduces the efficiency of workpiece tensile testing. Content of the Utility Model

[0004] The purpose of the utility model is to provide a workpiece tensile testing device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A workpiece tensile testing device, including a base, a tensile testing machine main body fixedly arranged at the top end of the base, and movable wheels movably arranged at the bottom end of the base. A fixing mechanism is symmetrically arranged between the movable wheels and the base. The fixing mechanism includes:

[0006] Fixing plates, the fixing plates are symmetrically hinged to the bottom end of the base and located on the side of the movable wheels, and a connecting rod is fixedly arranged between the fixing plates;

[0007] Connecting blocks, the connecting blocks are fixedly sleeved on the outer wall of the connecting rod, a control rod is hinged to the outer wall of the connecting block, and a limiting mechanism is arranged above the end of the control rod away from the connecting block.

[0008] Preferably, the limiting mechanism includes a support plate, a limiting rod and two limiting holes. The support plate is fixedly arranged on one side of the base. Both of the limiting holes are opened on the outer wall of the control rod. The bottom end of the limiting rod is inserted and connected to the inner cavity of the limiting hole, and the top end of the limiting rod penetrates through the top end of the support plate and extends upward.

[0009] Preferably, a second spring is fixedly arranged between the limiting rod and the support plate, and a groove is opened on the outer wall of the limiting rod.

[0010] Preferably, the limiting mechanism further includes a stop block and a first spring. One end of the first spring is fixedly arranged with the stop block, and the first spring is fixedly arranged in the inner cavity of the groove.

[0011] Preferably, the fixing plate is L-shaped, and a rubber sleeve is fixedly sleeved on the outer wall of the fixing plate.

[0012] Preferably, the control rod is T-shaped. The control rod is used for the rotation of the connecting block, and the connecting block is concave-shaped.

[0013] Technical effects and advantages of the present utility model:

[0014] Through the cooperation of the fixing mechanism and the limiting mechanism, the main body of the tensile testing machine can flexibly change the support structure under the base according to the use and movement states, so as to be more adaptable to the main body of the tensile testing machine with different state requirements, effectively improving the flexibility of the use and movement of the main body of the tensile testing machine, and further enhancing the efficiency of the workpiece tensile test. Description of the drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 It is a side structural schematic diagram of the base and the fixing structure of the present utility model.

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the limiting mechanism of the present utility model.

[0018] In the figure: 100, base; 200, main body of the tensile testing machine; 300, movable wheel; 400, fixing mechanism; 401, fixing plate; 402, connecting rod; 403, connecting block; 404, control rod; 500, limiting mechanism; 501, support plate; 502, limiting rod; 503, limiting hole; 504, stop block; 505, first spring; 506, second spring. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides as Figures 1-3A workpiece tensile testing device shown in the figure includes a base 100, a tensile testing machine main body 200 fixedly arranged at the top end of the base 100, and moving wheels 300 movably arranged at the bottom end of the base 100. Fixing mechanisms 400 are symmetrically arranged between the moving wheels 300 and the base 100. The fixing mechanism 400 includes fixing plates 401 and connecting blocks 403. The fixing plates 401 are symmetrically hinged to the bottom end of the base 100 and are located on the sides of the moving wheels 300. A connecting rod 402 is fixedly arranged between the fixing plates 401. The connecting block 403 is fixedly sleeved on the outer wall of the connecting rod 402. A control rod 404 is hinged to the outer wall of the connecting block 403. The fixing plate 401 is L-shaped, and a rubber sleeve is fixedly sleeved on the outer wall of the fixing plate 401. The control rod 404 is T-shaped, and the control rod 404 is used for the rotation of the connecting block 403. The connecting block 403 is concave-shaped.

[0021] For specific reference Figure 1 and Figure 2 The tensile testing machine main body 200 is an existing tensile testing machine, which can perform tensile testing on workpieces. The tensile testing machine main body 200 is an existing and mature technology, and its testing principle will not be elaborated in detail in this embodiment. Moving wheels 300 are installed at the end parts of the bottom end of the tensile testing machine main body 200, which is convenient for the flexible movement of the position of the tensile testing machine main body 200. The number of the fixing plates 401 is the same as that of the moving wheels 300, and the vertical opening sides of the fixing plates 401 are arranged towards the moving wheels 300. The top ends of the fixing plates 401 and the bottom end of the base 100 are hinged through hinge seats, and a connecting rod 402 is fixedly arranged between the two fixing plates 401, so that the two fixing plates 401 can move synchronously. Through the hinge of the connecting block 403 with the control rod 404 and the cooperation of the concave shape of the connecting rod 402, the movement range of the control rod 404 is more flexible. By applying a squeezing force to the connecting block 403 in the direction of the control rod 404, the connecting block 403 can rotate under the force, so that the connecting rod 402 and the fixing plate 401 can rotate synchronously, and the fixing plate 401 can rotate to the bottom end of the moving wheel 300 to separate the moving wheel 300 from the ground, thereby strengthening the position of the tensile testing machine main body 200, increasing the friction area and friction resistance with the ground, and improving the stability of the tensile testing machine main body 200 during use. On the contrary, when the control rod 404 applies a reverse force, it will drive the connecting block 403 to restore its position, and then the fixing plate 401 can be rotated out from the bottom end of the moving wheel 300, so that the tensile testing machine main body 200 can move by means of the rotation of the moving wheels 300. Above all, through the flexible change of the position of the fixing mechanism 400, the use state of the moving wheels 300 can be switched according to the use state and moving state of the tensile testing machine main body 200, effectively improving the stability of the tensile testing machine main body 200 during use and the flexibility of movement.

[0022] Above the end of the control rod 404 away from the connection block 403, a limiting mechanism 500 is provided. The limiting mechanism 500 includes a support plate 501, a limiting rod 502 and two limiting holes 503. The support plate 501 is fixedly arranged on one side of the base 100. Both of the two limiting holes 503 are opened on the outer wall of the control rod 404. The bottom end of the limiting rod 502 is inserted into the inner cavity of the limiting hole 503. The top end of the limiting rod 502 penetrates through the top end of the support plate 501 and extends upward. A second spring 506 is fixedly arranged between the limiting rod 502 and the support plate 501. A groove is opened on the outer wall of the limiting rod 502. The limiting mechanism 500 further includes a stop block 504 and a first spring 505. One end of the first spring 505 is fixedly arranged with the stop block 504. The first spring 505 is fixedly arranged in the inner cavity of the groove.

[0023] For specific reference Figure 1 and Figure 3 , the limiting rod 502 is T-shaped, which is convenient for installation in the support plate 501. The second spring 506 is fixedly sleeved on the outer wall of the limiting rod 502. The two limiting holes 503 are opened corresponding to two position states of the control rod 404, respectively for fixing after the control rod 404 applies force to the connection block 403, and for restriction after the control rod 404 resets. The limiting rod 502 can limit the position of the control rod 404 by inserting into the corresponding limiting hole 503. And during the lateral movement of the control rod 404, there will also be changes in the up and down positions. Therefore, after the limiting rod 502 passes through the limiting hole 503, the restriction of the stop block 504 will be used to ensure the stability of the position of the control rod 404. The stop block 504 is installed on the outer wall of the limiting rod 502 through the first spring 505. During the insertion process of the limiting rod 502 into the inner cavity of the limiting hole 503, the stop block 504 will be received into the inner cavity of the groove by using the compression performance of the first spring 505. On the contrary, it will pop out by using the elastic supporting force of the first spring 505. Thus, the effectiveness and stability of the position restriction of the control rod 404 can be ensured, and further, it is also convenient for the movement and use of the control rod 404. By squeezing the stop block 504 and moving the limiting rod 502 upward, the restriction on the control rod 404 can be released. The operation is simple and highly flexible, effectively improving the use efficiency of the fixing mechanism 400.

[0024] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A workpiece tensile testing device, comprising a base (100), a tensile testing machine body (200) fixedly arranged at the top of the base (100), and a movable wheel (00) movably arranged at the bottom of the base (100), characterized in that: A fixing mechanism (400) is symmetrically arranged between the movable wheel (00) and the base (100), and the fixing mechanism (400) comprises: A fixed plate (401), the fixed plate (401) is symmetrically hinged to the bottom end of the base (100) and is located on the side of the movable wheel (00), and a connecting rod (402) is fixedly arranged between the fixed plates (401); A connecting block (403) is fixedly sleeved on the outer wall of the connecting rod (402), the outer wall of the connecting block (403) is hinged with a control rod (404), and a limiting mechanism (500) is arranged above the end of the control rod (404) away from the connecting block (403).

2. A workpiece tensile testing device according to claim 1, characterized in that: The limiting mechanism (500) comprises a support plate (501), a limiting rod (502) and two limiting holes (503); the support plate (501) is fixedly arranged on one side of the base (100); the two limiting holes (503) are both opened on the outer wall of the control rod (404); the bottom end of the limiting rod (502) is connected with the inner cavity of the limiting hole (503); the top end of the limiting rod (502) passes through the top end of the support plate (501) and extends upward.

3. A workpiece tensile testing device according to claim 2, characterized in that: A second spring (506) is fixedly arranged between the limiting rod (502) and the supporting plate (501), and a groove is provided on the outer wall of the limiting rod (502).

4. A workpiece tensile testing device according to claim 2, characterized in that: The limiting mechanism (500) further comprises a stopper (504) and a first spring (505), wherein the first spring (505) is fixedly arranged on one end of the stopper (504), and the first spring (505) is fixedly arranged in the inner cavity of the groove.

5. A workpiece tensile testing device according to claim 1, characterized in that: The fixing plate (401) is L-shaped, and a rubber sleeve is provided on the outer wall fixing sleeve of the fixing plate (401).

6. A workpiece tensile testing device according to claim 1, characterized in that: The control rod (404) is T-shaped and is used for the rotation of the connecting block (403). The connecting block (403) is concave-shaped.

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