A device for testing the impact resistance of domestic ceramics

Abstract

The utility model provides a kind of for daily ceramic impact resistance testing device, belong to daily ceramic article testing device technical field. Including: worktop;Sample holder for being arranged on worktop, the bottom, edge or handle for fixing ceramic sample;And impact regulator arranged on worktop, the impact regulator includes height-adjustable support frame and steel ball support rod, support rod is movably arranged on support frame, and support rod end is equipped with detachable steel ball, steel ball is located sample holder side.The utility model device structure is simple, easy to operate, and realizes ceramic handle impact resistance test;Steel ball impact has no swing error, avoids secondary damage;Energy gradient covers daily ceramic actual use scene.

Description

Technical Field

[0001] This utility model belongs to the field of testing device technology, specifically relating to a device for testing the impact resistance of daily-use ceramics. Background Technology

[0002] The impact resistance of daily-use ceramics is one of the main indicators for measuring their resistance to impact. With the development of science and technology and the widespread application of mechanized catering, steam cleaning and disinfection, and microwave oven heating equipment, people have placed higher demands on the impact resistance of daily-use ceramics. Currently, some countries have established impact resistance testing methods for daily-use ceramics. For example, the United States has published ASTM C368-1988 (2024), and my country has published GB / T38494-2020 and QB / T1993-2012 impact methods. These standard methods specify the impact method as follows: the sample is placed in a fixed position, a pendulum is placed at a predetermined energy position, the pendulum is released to impact the sample, and a secondary impact is avoided by using a shield or other object to block the pendulum. The sample is then removed from the test, and the presence or absence of cracks or damage is observed. The impact energy at which cracks or damage occur is recorded. Ceramic impact resistance testing equipment has also been designed for the implementation of these standard methods. The working principle of this equipment is to check whether the sample cracks under specified energy clamping conditions. The magnitude of the impact energy directly reflects the resistance to impact. These standard methods specify the impact site as the bottom / edge, using only the bottom / edge impact strength to characterize the product's impact resistance, without considering the handle's impact strength. Furthermore, the testing equipment used in these standard methods is a pendulum impact tester (initial value 0.027J, graduation value no greater than 0.02J). This device works by releasing a pendulum from a certain height to its lowest point, converting potential energy into kinetic energy to impact the ceramic, causing cracks or breakage, thus characterizing the impact strength of the ceramic. This device can be used to test the bottom / edge impact strength / body impact of ceramic products, but cannot impact the handle. Therefore, considering the following shortcomings of existing technology: it can only test the bottom / edge and cannot fix the handle; the pendulum structure is complex and prone to secondary impacts; and the impact energy adjustment is inflexible (initial value 0.027J), it is necessary to develop a new impact resistance testing device for ceramic products to meet the current higher requirements for the impact strength of ceramic products. Utility Model Content

[0003] This invention provides a device for testing the impact resistance of daily-use ceramics, thus solving the problem of limitations in traditional methods for testing the impact strength of daily-use ceramic products.

[0004] To achieve the above objectives, the technical solution of this utility model is:

[0005] An impact resistance testing device for daily-use ceramics includes: a worktable; and a sample holder disposed on the worktable for fixing the bottom, edge, or handle of a ceramic sample.

[0006] An impact adjuster includes a height-adjustable support frame and a steel ball support rod. The support rod is horizontally movable and mounted on the support frame. A detachable steel ball is provided at the end of the support rod and is located on one side of the sample holder.

[0007] Furthermore, the sample holder includes: two vertically arranged threaded posts; a fixing nut that mates with the threaded posts; and a vertical steel plate that presses the handle or edge of the ceramic sample with the nut.

[0008] Furthermore, the impact adjuster also includes: two upright cylinders; a height-adjusting threaded column and a bottom sliding support plate. The cylinders and threaded column are sequentially arranged through the support frame and the sliding support plate. The sliding support plate is slidably arranged on the worktable to control the vertical impact height of the steel ball.

[0009] Furthermore, the steel ball support rod is approximately 270mm long, and its lateral position can be adjusted by using a fixing nut.

[0010] Furthermore, the maximum lifting distance of the worktable is approximately 250mm-260mm, the longitudinal movement distance is approximately 220mm-230mm, and the lateral movement distance is approximately 150-160mm.

[0011] Furthermore, the steel ball has a mass of 2.3602g, 302g, 402g, or 502g, corresponding to an impact energy of 0.05J–0.106J.

[0012] The beneficial effects of this utility model are:

[0013] The support frame is made of stainless steel, with dimensions of 350×210mm and four support points at the bottom, supporting three-dimensional movement (lifting 255mm / vertical movement 230mm / horizontal movement 150mm).

[0014] Sample holder: It forms a clamping space through threaded post and steel sheet, and is compatible with irregular parts such as cup handles and kettle handles;

[0015] Impact adjuster: The steel ball support rod can slide laterally, and the free fall height of the steel ball is fixed at 3 inches (76.2 mm). The impact energy (0.05 J–0.106 J) can be adjusted by changing the mass of the steel ball.

[0016] This utility model device has a simple structure, is easy to operate, and realizes the impact resistance test of ceramic handles; the impact of steel balls has no swing error, avoiding secondary damage; the energy gradient covers the actual use scenarios of daily ceramics. Attached Figure Description

[0017] Figure 1 : Three-dimensional structural diagram of the device;

[0018] Figure 2 : A magnified view of a portion of the sample holder;

[0019] Figure 3 : Cross-sectional view of the impact regulator;

[0020] Among them, the worktable-1, sample holder-2, threaded post-21, fixing nut-22, steel sheet-23, impact adjuster-3, support frame-31, support rod-32, and steel ball-33 are all included. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] See Figure 1 , Figure 2 , Figure 3 An impact resistance testing device for everyday ceramics, comprising:

[0024] The movable work surface 1 can be fixed or clamped to the desktop;

[0025] The sample holder 2, located on the workbench 1, is used to fix the bottom, edge, or handle of the ceramic sample.

[0026] The impact adjuster 3 includes a height-adjustable support frame 31 and a horizontally movable steel ball support rod 32, with a detachable steel ball 33 at the end of the support rod 32.

[0027] The sample holder 2 described in this embodiment includes:

[0028] Two vertically arranged threaded posts 21;

[0029] A retaining nut 22 that mates with the threaded post 21;

[0030] A horizontal steel plate 23 is used to place the ceramic product to be tested at the bottom of the horizontal steel plate. The handle or upper edge of the ceramic sample is pressed by adjusting the fixing nut 22.

[0031] The impact modulator 3 described in this embodiment also includes:

[0032] The two upright cylinders 34 serve as guides when the height of the height-adjustable support frame 31 is adjusted.

[0033] A height-adjustable threaded column 35 and a bottom sliding support plate 36 are provided. The height-adjustable threaded column 35 is used to fix the support frame with the adjusted height position on the worktable. The bottom sliding support plate 36 is used to adjust the horizontal position of the support frame, thereby determining the vertical impact height and direction of the steel ball 33. The bottom sliding support plate 36 can adopt a structure in which a slide rail and a slider are slidably mounted on the slide rail, and the slide rail is provided with a position adjustment hole for a fixing part that cooperates with the slider.

[0034] The steel ball support rod 32 described in this embodiment is 270mm long. Its front and rear horizontal position can be adjusted by fixing the nut. The front and rear positions refer to the position closer to the ceramic product to be tested as the front and the position farther away from the ceramic product to be tested as the rear.

[0035] The steel ball described in this embodiment can be raised and lowered, moved laterally, and moved forward and backward in three dimensions.

[0036] The steel ball 33 described in this embodiment has a mass of 2.3602g, 302g, 402g or 502g, corresponding to an impact energy of 0.05J–0.106J.

[0037] The device in this embodiment operates as follows:

[0038] Sample fixing: Place the ceramic cup on the workbench 1 and tighten the nut 22 to press the steel plate 23 against the cup handle;

[0039] Energy selection: Select a steel ball according to the test standard (e.g., 502 corresponds to 0.106J) and install it into the support rod 32;

[0040] Position adjustment:

[0041] The lifting support frame and support plates slide to align the impact point with the center of the steel ball;

[0042] The forward and backward movable support rod 32 precisely positions the impact point;

[0043] Test execution: Release a steel ball to fall freely and impact the sample, observe the cracks and record the critical fracture energy.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for testing the impact resistance of daily-use ceramics, characterized in that, include: Work surface; Sample holders mounted on the workbench are used to secure the bottom, edge, or handle of ceramic samples. The impact adjuster is provided on the workbench. The impact adjuster includes a height-adjustable support frame and a steel ball support rod. The support rod is horizontally movable on the support frame, and the end of the support rod is provided with a detachable steel ball located on one side of the sample holder.

2. The apparatus according to claim 1, characterized in that, The sample holder includes: Two threaded columns are vertically mounted on the worktable. A retaining nut that mates with a threaded post; And a transverse steel plate, which is set through a threaded post and pressed against the handle or edge of the ceramic sample by a nut.

3. The apparatus according to claim 1, characterized in that, The shock modulator also includes: Two upright cylinders; It also includes a height-adjustable threaded column and a sliding support plate at the bottom. The cylinder and the threaded column pass through the support frame and the sliding support plate in sequence, and the sliding support plate is slidably set on the worktable.

4. The apparatus according to claim 3, characterized in that, The steel ball support rod passes horizontally through the support frame, and its lateral position can be adjusted by fixing nuts.

5. The apparatus according to claim 1, characterized in that, The maximum lifting distance of the support frame is 250-260mm, the longitudinal movement distance is 220-240mm, and the lateral movement distance is 150-160mm.

6. The apparatus according to claim 1, characterized in that, The steel ball has a mass of 2.3602g, 302g, 402g or 502g, corresponding to an impact energy of 0.05J-0.106J.

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