Tensile strength testing device with adjusting function

Abstract

The tensile strength testing device with the adjusting function comprises a base, an adjusting assembly is arranged on the upper side of the base, the adjusting assembly comprises two adjusting frames, the inner walls of the lower sides of the two adjusting frames are in threaded connection with a first positive and negative screw rod, and a motor is fixedly installed on the outer surface of one end of the first positive and negative screw rod; worms are rotationally connected to the inner walls of one sides of the two adjusting frames, worm gears are meshed with the outer surfaces of the worms, threaded lead screws are fixedly installed on the outer surfaces of one sides of the worm gears, and sliding frames are in threaded connection with the outer surfaces of the threaded lead screws. By means of the structure, the device can adapt to workpieces of different lengths, the stretching distance of the device is not affected, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tensile strength testing devices, and more specifically, to a tensile strength testing device with an adjustment function. Background Art

[0002] In modern industry and scientific research, accurate testing of the tensile strength of materials is of vital importance. Tensile strength is one of the key indicators of mechanical properties of materials. It reflects the resistance of materials when subjected to tensile loads. With the continuous development of materials science, various new materials emerge in an endless stream, and the requirements for tensile strength testing devices are also increasing. The existing tensile strength testing device is composed of structures such as a clamping device and a tensile power device. When in use, the workpiece is fixed by the clamping device, and then the tensile power device is started to drive the clamping device to move in the opposite direction, thereby realizing the tensile test. When the shape and length of the workpiece are different, it is necessary to start the tensile power device to drive the clamping device to move in opposite directions, so that the clamping device can adapt to the workpiece. However, the stretching distance of the existing tensile testing device is mostly limited. When facing some longer workpieces, the stretching distance of the testing device may be insufficient, thereby affecting the test data, which greatly reduces the practicality of the testing device to a certain extent. In order to solve the shortcomings of the prior art, we propose a tensile strength testing device with an adjustment function. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a tensile strength testing device with an adjustment function to solve the problem that when facing some longer workpieces, the stretching distance of the testing device may be insufficient, thereby affecting the test data and greatly reducing the practicability of the testing device to a certain extent.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a tensile strength testing device with an adjustment function, comprising a base, an adjustment component is arranged on the upper side of the base, and a clamping component is arranged on one side of the adjustment component;

[0005] The adjustment assembly includes two adjustment frames, the lower inner walls of the two adjustment frames are threadedly connected with first positive and negative screws, the outer surface of one end of the first positive and negative screws is fixedly mounted with a motor, the inner walls of one side of the two adjustment frames are rotatably connected with a worm, the outer surface of the worm is meshed with a worm wheel, the outer surface of one side of the worm wheel is fixedly mounted with a threaded screw, and the outer surface of the threaded screw is threadedly connected with a sliding frame.

[0006] Among them, the adjusting frame slides on the upper outer surface of the base, the first positive and negative screw rods are rotatably connected to the middle inner wall of the base, the motor is fixedly installed on one side inner wall of the base, the threaded screw rods are rotatably connected to the middle inner wall of the adjusting frame, and the sliding frame slides on the upper outer surface of the adjusting frame.

[0007] Among them, the clamping assembly includes a base plate, a lower clamping plate is fixedly installed on the upper outer surface of the base plate, a top plate is arranged above the lower clamping plate, the inner surface of the top plate is rotatably connected with a second positive and negative screw rod, the outer surface of the second positive and negative screw rod is symmetrically threaded with a sliding block, the lower inner wall of the sliding block is rotatably connected with a connecting rod, the outer wall of one end of the connecting rod is rotatably connected with a U-shaped clamp, the lower outer surface of the U-shaped clamp is fixedly installed with an upper clamping plate, the base plate and the top plate are both fixedly installed on the outer surface of one side of the sliding frame, and the sliding block slides on the inner surface of the top plate.

[0008] Wherein, a protrusion is provided in the middle of the lower surface of the sliding frame, and a sliding groove is provided in the middle of the upper surface of the adjusting frame, and the protrusion slides on the outer wall of the sliding groove.

[0009] Wherein, when the connecting rod is vertical, the lower outer surface of the upper clamping plate fits with the upper outer surface of the lower clamping plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model provides an adjustment component, including an adjustment frame. According to the length of the workpiece to be stretched, the worm is rotated to drive the worm wheel meshed on the outer surface thereof to rotate. The rotation of the worm wheel drives the threaded screw to rotate, thereby driving the sliding frame to slide on the upper outer surface of the adjustment frame, thereby changing the distance between the two sliding frames. By utilizing the above structure, the distance between the two sliding frames is adjusted by rotating the worm to drive the sliding frame to slide on the outer surface of the adjustment frame, so that the device can adapt to workpieces of different lengths, thereby not affecting the stretching distance of the device, and greatly improving the practicality of the tensile strength testing device.

[0012] The utility model provides a clamping assembly, including a bottom plate, which places the workpiece on the upper outer surface of the lower clamping plate, and rotates the second positive and negative screw rods to drive the two sliding blocks to slide on the inner surface of the top plate, thereby driving the connecting rod to rotate on the lower inner wall of the sliding block, and then driving the upper clamping plate to move downward, so that the workpiece is clamped between the upper clamping plate and the lower clamping plate. Utilizing the above structure, the upper clamping plate is driven to move close to the lower clamping plate by rotating the second positive and negative screw rods, thereby avoiding the operation of holding the workpiece by hand, facilitating the clamping of the workpiece, and improving the working efficiency of the testing device to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0015] Figure 3 This is a schematic diagram of the inner structure of the adjustment frame of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the clamping assembly of the utility model.

[0017] [reference numerals]

[0018] 1. Base; 2. Adjustment assembly; 3. Clamping assembly; 21. Adjustment frame; 22. First positive and negative screw rod; 23. Motor; 24. Worm; 25. Worm wheel; 26. Threaded screw rod; 27. Sliding frame; 31. Bottom plate; 32. Lower clamping plate; 33. Top plate; 34. Second positive and negative screw rod; 35. Sliding block; 36. Connecting rod; 37. U-shaped clamp; 38. Upper clamping plate. DETAILED DESCRIPTION

[0019] In order to make the technical problems to be solved, technical solutions and advantages of the present invention more clear, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0020] As attached Figure 1 To Attachment Figure 4 The embodiment of the utility model provides a tensile strength testing device with an adjustment function, comprising a base 1, an adjustment component 2 is arranged on the upper side of the base 1, and a clamping component 3 is arranged on one side of the adjustment component 2;

[0021] The adjustment assembly 2 includes two adjustment frames 21, the lower inner walls of the two adjustment frames 21 are threadedly connected with a first forward and reverse screw rod 22, the outer surface of one end of the first forward and reverse screw rod 22 is fixedly installed with a motor 23, one side inner wall of the two adjustment frames 21 is rotatably connected with a worm 24, the outer surface of the worm 24 is meshed with a worm wheel 25, one side outer surface of the worm wheel 25 is fixedly installed with a threaded screw rod 26, and the outer surface of the threaded screw rod 26 is threadedly connected with a sliding frame 27.

[0022] The adjusting frame 21 slides on the upper outer surface of the base 1, the first positive and negative screw rod 22 is rotatably connected to the middle inner wall of the base 1, the motor 23 is fixedly installed on one side inner wall of the base 1, the threaded screw rod 26 is rotatably connected to the middle inner wall of the adjusting frame 21, and the sliding frame 27 slides on the upper outer surface of the adjusting frame 21;

[0023] The worm 24 is rotated according to the length of the workpiece to be stretched to drive the worm wheel 25 meshing on its outer surface to rotate, and the rotation of the worm wheel 25 drives the threaded screw 26 to rotate, thereby driving the sliding frame 27 to slide on the upper outer surface of the adjustment frame 21, thereby changing the distance between the two sliding frames 27.

[0024] The clamping assembly 3 includes a bottom plate 31, a lower clamping plate 32 is fixedly mounted on the upper outer surface of the bottom plate 31, a top plate 33 is arranged above the lower clamping plate 32, a second positive and negative screw rod 34 is rotatably connected to the inner surface of the top plate 33, a sliding block 35 is symmetrically threadedly connected to the outer surface of the second positive and negative screw rod 34, a connecting rod 36 is rotatably connected to the inner wall of the lower side of the sliding block 35, a U-shaped clamp 37 is rotatably connected to the outer wall of one end of the connecting rod 36, an upper clamping plate 38 is fixedly mounted on the lower outer surface of the U-shaped clamp 37, the bottom plate 31 and the top plate 33 are both fixedly mounted on the outer surface of one side of the sliding frame 27, and the sliding block 35 slides on the inner surface of the top plate 33;

[0025] By placing the workpiece on the upper outer surface of the lower clamping plate 32, rotating the second forward and reverse screw rods 34 to drive the two sliding blocks 35 to slide on the inner surface of the top plate 33, thereby driving the connecting rod 36 to rotate on the lower inner wall of the sliding block 35, and then driving the upper clamping plate 38 to move downward, so that the workpiece is clamped between the upper clamping plate 38 and the lower clamping plate 32.

[0026] A protrusion is provided in the middle of the lower surface of the sliding frame 27 , and a sliding groove is provided in the middle of the upper surface of the adjusting frame 21 . The protrusion slides on the outer wall of the sliding groove.

[0027] When the connecting rod 36 is vertical, the lower outer surface of the upper clamping plate 38 fits with the upper outer surface of the lower clamping plate 32 .

[0028] The working process of the utility model is as follows:

[0029] First, the device is placed in a suitable working area. Then, according to the length of the workpiece to be stretched, the worm 24 is rotated to drive the worm wheel 25 meshing on its outer surface to rotate. The rotation of the worm wheel 25 drives the threaded screw 26 to rotate, thereby driving the sliding frame 27 to slide on the upper outer surface of the adjusting frame 21, thereby changing the distance between the two sliding frames 27. Next, the workpiece is placed on the upper outer surface of the lower clamping plate 32, and the second positive and negative screw rods 34 are rotated to drive the two sliding blocks 35 to slide on the inner surface of the top plate 33, thereby driving the connecting rod 36 to rotate on the lower inner wall of the sliding block 35, thereby driving the upper clamping plate 38 to move downward, so that the workpiece is clamped between the upper clamping plate 38 and the lower clamping plate 32. After the fixed installation is completed, the motor 23 is started to drive the first positive and negative screw rods 22 to rotate on the inner surface of the base 1, thereby driving the two adjusting frames 21 to move relative to each other on the upper outer surface of the base 1, thereby realizing the stretching action on the workpiece.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A tensile strength testing device with an adjustable function, comprising a base (1), characterized in that: An adjustment component (2) is arranged on the upper side of the base (1), and a clamping component (3) is arranged on one side of the adjustment component (2); The adjustment assembly (2) comprises two adjustment frames (21), the lower inner walls of the two adjustment frames (21) are threadedly connected with a first forward and reverse screw rod (22), an outer surface of one end of the first forward and reverse screw rod (22) is fixedly mounted with a motor (23), one side inner wall of the two adjustment frames (21) is rotatably connected with a worm (24), the outer surface of the worm (24) is meshed with a worm wheel (25), a threaded screw rod (26) is fixedly mounted on the outer surface of one side of the worm wheel (25), and the outer surface of the threaded screw rod (26) is threadedly connected with a sliding frame (27).

2. The tensile strength testing device with adjustment function according to claim 1, characterized in that: The adjusting frame (21) slides on the upper outer surface of the base (1), the first forward and reverse screw rods (22) are rotatably connected to the middle inner wall of the base (1), the motor (23) is fixedly mounted on one side inner wall of the base (1), the threaded screw rod (26) is rotatably connected to the middle inner wall of the adjusting frame (21), and the sliding frame (27) slides on the upper outer surface of the adjusting frame (21).

3. The tensile strength testing device with adjustment function according to claim 1, characterized in that: The clamping assembly (3) comprises a bottom plate (31), a lower clamping plate (32) is fixedly mounted on the upper outer surface of the bottom plate (31), a top plate (33) is arranged above the lower clamping plate (32), the inner surface of the top plate (33) is rotatably connected to a second positive and negative screw rod (34), the outer surface of the second positive and negative screw rod (34) is symmetrically threadedly connected to a sliding block (35), the lower inner wall of the sliding block (35) is rotatably connected to a connecting rod (36), the outer wall of one end of the connecting rod (36) is rotatably connected to a U-shaped clamp (37), the lower outer surface of the U-shaped clamp (37) is fixedly mounted to an upper clamping plate (38), the bottom plate (31) and the top plate (33) are both fixedly mounted on the outer surface of one side of the sliding frame (27), and the sliding block (35) slides on the inner surface of the top plate (33).

4. The tensile strength testing device with adjustment function according to claim 1, characterized in that: A convex block is provided in the middle of the lower surface of the sliding frame (27), and a sliding groove is provided in the middle of the upper surface of the adjusting frame (21), and the convex block slides on the outer wall of the sliding groove.

5. The tensile strength testing device with adjustment function according to claim 3, characterized in that: When the connecting rod (36) is vertical, the lower outer surface of the upper clamping plate (38) fits the upper outer surface of the lower clamping plate (32).

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