Centering device for unnotched impact sample
By designing a centering device including a bending handle, a back plate, a left plate, a right plate and a centering bottom plate, the problem of centering and fitting the unnotched impact specimen on the impact testing machine is solved, and fast, safe and reliable operation is achieved.
Patent Information
- Application Number
- CN202422128900.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-31
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-08-31
AI Technical Summary
Unnotched impact specimens are difficult to quickly and accurately align and fit tightly on impact testing machines. Existing devices are laborious to operate and can easily cause specimens to fall, affecting test accuracy.
A centering device is designed, which includes a bending handle, a back plate, a left plate, a right plate and a centering bottom plate. The enclosed area has the same span as the anvil of the impact testing machine, so that rapid centering and adhesion can be achieved, simplifying the operation process.
It achieves fast and accurate centering and adhesion of non-notched specimens, avoids falling, improves the safety and reliability of operation, and is suitable for operation in small spaces.
Smart Images
Figure CN223426393U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a centering device for a non-notched impact specimen, belonging to the technical field of metal material impact test equipment. Background Art
[0002] The impact test of metal materials is to place a notched or unnotched specimen with a specified geometric shape between the two anvils of the impact testing machine, use a pendulum to impact the specified impact surface of the specimen, and test the impact absorption energy of the material. When placing the specimen, the center of the impact specimen is required to coincide with the center of the anvil gap to ensure that the center of the pendulum strike is located at the center of the specimen. In addition, the impact surface of the specimen is required to be close to the sides of the two anvils to avoid distortion of the impact data caused by side impact and gap buffering. Unlike the centering operation of notched specimens with notched centering pliers, it is more difficult to complete the fast, convenient and accurate centering and tightening operation of unnotched impact specimens, and the operation of taking out and placing the specimen using a clamp-type structure device is laborious, which can easily cause the specimen to fall, and long-term use can easily cause the connecting shaft to loosen. There is a lack of an integrated and simple centering and placing device on the market. Utility Model Content
[0003] The purpose of the utility model is to provide a centering device for unnotched impact specimens. By adopting an enclosed area with a bottom plate width that is the same as the span of the two anvils of the impact testing machine, the unnotched specimen can be quickly and accurately centered and placed on the two impact anvils, and tightly attached to them. The specimen is not easily dropped during the process of taking and placing. The device is simple and firm, which is conducive to operation in a small space. It is safe and reliable to use, worthy of promotion and application, and effectively solves the above-mentioned problems existing in the background technology.
[0004] The technical solution of the utility model is: a centering device for an unnotched impact specimen, comprising a bending handle, a back plate, a left plate, a right plate and a centering bottom plate, the bending handle being connected to the back of the back plate, the left plate and the right plate being respectively arranged on the left and right sides of the back plate, the centering bottom plate being arranged at the bottom of the back plate, the back plate, the left plate, the right plate and the centering bottom plate forming an enclosing area, the sample to be tested being fixedly placed in the enclosing area, and the width of the bottom plate being the same as the span of the two anvils of the impact testing machine.
[0005] The back plate is a T-shaped structure, the back plate is horizontally connected to the left side plate and the right side plate, and has the same width, and the back plate is vertically connected to the centering bottom plate, and has the same width.
[0006] The inner width between the left and right plates is consistent with the width of the test sample, the length of the left and right plates is 1-2 mm less than the thickness of the impact surface of the test sample, and the lower side height is half the height of the test sample.
[0007] The center position of the centering bottom plate is the same as the center position of the back plate, the width is the same as the span of the two anvils of the impact testing machine, and the length is 10-20 mm greater than the thickness of the impact surface of the impact specimen.
[0008] The bending angle of the bending handle is 90-120 degrees, and the end of the bending handle is provided with anti-slip grooves.
[0009] The beneficial effects of the utility model are as follows: by adopting an enclosed area with a bottom plate width that is the same as the span of the two anvils of the impact testing machine, the unnotched specimen can be quickly and accurately placed on the two impact anvils in a center and close to them, and the specimen is not likely to fall during the process of taking and placing. The device is simple and firm, which is conducive to operation in a small space, is safe and reliable to use, and is worthy of popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0011] In the figure: bending handle 10, back plate 21, left side plate 22, right side plate 23, centering bottom plate 24. DETAILED DESCRIPTION
[0012] In order to make the purpose, technical solution and advantages of the utility model implementation case clearer, the technical solution in the utility model implementation case will be clearly and completely described below in combination with the drawings in the implementation case. Obviously, the implementation case described is a small part of the implementation case of the utility model, rather than all the implementation cases. Based on the implementation case in the utility model, all other implementation cases obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0013] A centering device for an unnotched impact specimen comprises a bending handle 10, a back plate 21, a left side plate 22, a right side plate 23 and a centering bottom plate 24. The bending handle 10 is connected to the back of the back plate 21, the left side plate 22 and the right side plate 23 are respectively arranged on the left and right sides of the back plate 21, and the centering bottom plate 24 is arranged at the bottom of the back plate 21. The back plate 21, the left side plate 22, the right side plate 23 and the centering bottom plate 24 form an enclosing area, and the sample to be tested is fixedly placed in the enclosing area. The width of the bottom plate is the same as the span of the two anvils of the impact testing machine.
[0014] The back plate 21 is a T-shaped structure. The back plate 21 is horizontally connected to the left side plate 22 and the right side plate 23 with the same width. The back plate 21 is vertically connected to the centering bottom plate 24 with the same width.
[0015] The inner width between the left plate 22 and the right plate 23 is consistent with the width of the test sample. The length of the left plate 22 and the right plate 23 is 1-2 mm less than the thickness of the impact surface of the test sample. The lower side height is half the height of the test sample.
[0016] The center position of the centering bottom plate 24 is the same as the center position of the back plate 21, the width is the same as the span of the two anvils of the impact testing machine, and the length is 10-20 mm greater than the thickness of the impact surface of the impact specimen.
[0017] The bending angle of the bending handle 10 is 90-120 degrees, and the end of the bending handle 10 is provided with anti-slip grooves.
[0018] In actual application, the test sample is first placed in the enclosed area of the present invention according to the requirements of the impact test, and the bent handle is held to place the test sample on the anvil, and the front end of the centering base plate 24 just passes through the gap between the anvils smoothly without scratching the anvil. At this time, the test sample has been centered in the center of the anvil gap, and the test sample is continued to be pushed inward so that it is close to the sides of the two anvils, and then the present invention is moved downward and backward at the same time to complete the centering of the test sample and the placement of it close to the anvil.
[0019] In addition, the present invention is not only applicable to the centering operation of impact specimens without notches, but also applicable to the centering operation of notched specimens such as V / U-shaped ones.
[0020] The above are only specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. Any technical solution formed by equivalent transformation or equivalent replacement shall fall within the scope of protection of the present invention.
Claims
1. A centering device for an unnotched impact specimen, characterized in that: The invention comprises a bending handle (10), a back plate (21), a left side plate (22), a right side plate (23) and a centering bottom plate (24), wherein the bending handle (10) is connected to the back of the back plate (21), the left side plate (22) and the right side plate (23) are respectively arranged on the left and right sides of the back plate (21), and the centering bottom plate (24) is arranged at the bottom of the back plate (21). The back plate (21), the left side plate (22), the right side plate (23) and the centering bottom plate (24) form an enclosed area, and the sample to be tested is fixedly placed in the enclosed area. The width of the bottom plate is the same as the span of the two anvils of the impact tester.
2. The centering device for an unnotched impact specimen according to claim 1, characterized in that: The back plate (21) is a T-shaped structure. The back plate (21) is connected to the left side plate (22) and the right side plate (23) in the horizontal direction and has the same width. The back plate (21) is connected to the centering bottom plate (24) in the vertical direction and has the same width.
3. The centering device for an unnotched impact specimen according to claim 2, characterized in that: The inner width between the left side plate (22) and the right side plate (23) is consistent with the width of the sample to be tested, the length of the left side plate (22) and the right side plate (23) is 1-2 mm less than the thickness of the impact surface of the sample to be tested, and the height of the lower side is located at half the height of the sample to be tested.
4. The centering device for an unnotched impact specimen according to claim 2, characterized in that: The center position of the centering bottom plate (24) is the same as the center position of the back plate (21), the width is the same as the span of the two anvils of the impact testing machine, and the length is 10-20 mm greater than the thickness of the impact surface of the impact specimen.
5. The centering device for an unnotched impact specimen according to claim 1, characterized in that: The bending angle of the bending handle (10) is 90-120°, and the end of the bending handle (10) is provided with anti-slip grooves.