Self-adaptive hardness tester

Abstract

The utility model discloses a self-adaptive hardness tester which comprises a testing bin, a hardness testing mechanism is arranged on the inner side of the testing bin, the hardness testing mechanism comprises a fixing frame fixedly connected to the inner wall of the testing bin, the upper end of the fixing frame is fixedly connected with a guide table, the inner side of the guide table is slidably connected with a hydraulic cylinder, and the inner side of the hydraulic cylinder is fixedly connected with the testing bin. A lower pressing block is fixedly connected to the telescopic end of the lower end of the hydraulic cylinder, and a placement frame is fixedly connected to the side, close to the fixing frame, of the inner wall of the testing bin. According to the self-adaptive hardness tester disclosed by the utility model, the test plate is inserted into the placement frame, then the supporting cushion block is inserted into the placement frame and is gradually pushed into the placement frame, and the supporting cushion block is step-shaped, so that the aim of conveniently clamping the test plate into the placement frame by the supporting cushion block through the steps on the surface is fulfilled; therefore, the supporting cushion block can directly adapt to the test plates with different thicknesses, and the supporting cushion block can directly limit the test plates with different thicknesses.

Description

Technical Field

[0001] This utility model relates to the field of hardness testing technology, and in particular to an adaptive hardness tester. Background Technology

[0002] A hardness tester is a specialized instrument used to measure the surface hardness of metals. Hardness testers are divided into two types: benchtop hardness testers and portable hardness testers. Benchtop hardness testers are mainly used in laboratories and have the advantage of high accuracy. Portable hardness testers are suitable for installed mechanical or permanently assembled parts and are easy to carry.

[0003] Traditional adaptive hardness testers have some drawbacks. In actual operation, the test plate needs to be clamped under the testing equipment. Also, due to the different thicknesses of the test plates, workers need to limit the test plates of different thicknesses, which makes the operation steps cumbersome and inconvenient for measuring the test plates. Utility Model Content

[0004] The main objective of this invention is to provide an adaptive hardness tester that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An adaptive hardness tester includes a test chamber, an inner side of which is provided with a hardness testing mechanism. The hardness testing mechanism includes a fixed frame fixedly connected to the inner wall of the test chamber, a guide platform fixedly connected to the upper end of the fixed frame, a hydraulic cylinder slidably connected to the inner side of the guide platform, a pressing block fixedly connected to the telescopic end of the lower end of the hydraulic cylinder, a placement frame fixedly connected to the inner wall of the test chamber near the fixed frame, a test plate placed inside the placement frame, a support pad slidably connected to the bottom of the inner side of the placement frame, a stabilizing support rod fixedly connected to the lower end of the placement frame, and a plane measuring instrument installed inside the guide platform.

[0007] Preferably, the upper end of the plane measuring instrument is fixedly connected to a stabilizing rod, the fixed frame is L-shaped, there are two sets of fixed frames, the upper end of the hydraulic cylinder is fixedly connected to the top of the inner side of the test chamber, and the lower end of the pressing block is in contact with the upper end of the test plate.

[0008] Preferably, the support pad is stepped, with the upper end of the support pad contacting the lower end of the test plate, and the lower end of the stabilizing rod being fixedly connected to the inner bottom of the test chamber.

[0009] Preferably, the lower end of the plane measuring instrument is in contact with the upper end of the test plate near the front side of the lower pressure block, and the upper end of the stabilizing rod is fixedly connected to the inner top of the test chamber near the front side of the hydraulic cylinder.

[0010] Preferably, the inner side of the test chamber is movably connected to a door cover plate near the front side of the hardness testing mechanism via a rotating shaft. A transparent plate is embedded inside the door cover plate, and a door handle is fixedly connected to the front end of the door cover plate.

[0011] Preferably, the lower end of the test chamber is fixedly connected to a base, and the lower end of the base is fixedly connected to a support leg. There are four sets of support legs, and the four sets of support legs are distributed at the four corners of the lower end of the base.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By inserting the test plate into the placement rack, and then inserting the support pad into the placement rack, and gradually pushing the support pad into the placement rack, the support pad, which is stepped in shape, can be used to secure the test plate in the placement rack. This allows the support pad to directly adapt to test plates of different thicknesses, thus directly limiting the test plates of different thicknesses. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an adaptive hardness tester according to the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the overall structure of an adaptive hardness tester according to the present invention. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the hardness testing mechanism of an adaptive hardness tester according to the present invention.

[0017] Figure 4 This is a partial structural diagram of the hardness testing mechanism of an adaptive hardness tester according to the present invention.

[0018] In the diagram: 1. Test chamber; 2. Door cover; 3. Transparent panel; 4. Door handle; 5. Base; 6. Support leg; 7. Hardness testing mechanism; 71. Fixing frame; 72. Guide platform; 73. Hydraulic cylinder; 74. Lower pressure block; 75. Placement rack; 76. Test plate; 77. Support pad; 78. Stabilizing rod; 79. Plane measuring instrument; 710. Stabilizing rod. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figure 1-4As shown, an adaptive hardness tester includes a test chamber 1. A hardness testing mechanism 7 is provided inside the test chamber 1. The hardness testing mechanism 7 includes a fixed frame 71 fixedly connected to the inner wall of the test chamber 1. A guide platform 72 is fixedly connected to the upper end of the fixed frame 71. A hydraulic cylinder 73 is slidably connected to the inner side of the guide platform 72. A pressing block 74 is fixedly connected to the telescopic end of the lower end of the hydraulic cylinder 73. A placement frame 75 is fixedly connected to the inner wall of the test chamber 1 near the fixed frame 71. A test plate 76 is placed inside the placement frame 75. A support pad 77 is slidably connected to the bottom of the inner side of the placement frame 75. A stabilizing support rod 78 is fixedly connected to the lower end of the placement frame 75. A plane measuring instrument 79 is installed inside the guide platform 72.

[0021] In this embodiment, a stabilizing rod 710 is fixedly connected to the upper end of the plane measuring instrument 79. The fixing frame 71 is L-shaped and there are two sets of fixing frames 71. The upper end of the hydraulic cylinder 73 is fixedly connected to the top inner side of the test chamber 1. The lower end of the lower pressure block 74 is in contact with the upper end of the test plate 76. The support pad 77 is stepped and the upper end of the support pad 77 is in contact with the lower end of the test plate 76. The lower end of the stabilizing rod 78 is fixedly connected to the bottom inner side of the test chamber 1. The lower end of the plane measuring instrument 79 is in contact with the upper end of the test plate 76 near the front side of the lower pressure block 74. The upper end of the stabilizing rod 710 is fixedly connected to the top inner side of the test chamber 1 near the front side of the hydraulic cylinder 73.

[0022] Specifically, the test plate 76 is inserted into the placement rack 75, and then the support pad 77 is inserted into the placement rack 75. The support pad 77 is gradually pushed into the placement rack 75. The support pad 77 is stepped, so the support pad 77 uses the steps on its surface to clamp the test plate 76 into the placement rack 75. This allows the support pad 77 to directly accommodate test plates 76 of different thicknesses, thus directly limiting the thickness of the test plates 76. Then, the hydraulic cylinder 73 is activated, causing the hydraulic cylinder 73 to push the lower pressure block 74 downward and apply downward pressure to the test plate 76. This downward pressure compresses the test plate 76, forcing the test plate 76 to resist the downward pressure with its own strength. If the test... When the strength of the test plate 76 is low, it will deform under downward pressure. At this time, the flatness measuring instrument 79 will detect the change in the flatness of the test plate 76, and then determine the strength of the test plate 76 by measuring the change in flatness. The test plate 76 is inserted into the placement frame 75, and then the support pad 77 is inserted into the placement frame 75. The support pad 77 is gradually pushed into the placement frame 75. The support pad 77 is stepped, which can make it easy for the support pad 77 to use the steps on its surface to clamp the test plate 76 in the placement frame 75. This allows the support pad 77 to directly adapt to test plates 76 of different thicknesses, and allows the support pad 77 to directly limit the test plates 76 of different thicknesses.

[0023] In this embodiment, a door cover 2 is movably connected to the inner side of the test chamber 1 near the front side of the hardness testing mechanism 7 via a rotating shaft. A transparent plate 3 is embedded inside the door cover 2. A door handle 4 is fixedly connected to the front end of the door cover 2. A base 5 is fixedly connected to the lower end of the test chamber 1. A support leg 6 is fixedly connected to the lower end of the base 5. There are four sets of support legs 6, and the four sets of support legs 6 are distributed at the four corners of the lower end of the base 5.

[0024] Specifically, first, pull the door handle 4 to make the door cover 2 rotate, then insert the test plate 76 into the placement rack 75, then close the door cover 2, and allow the worker to observe the situation inside the test chamber 1 through the transparent plate 3.

[0025] Working principle:

[0026] In use, the worker first pulls the door handle 4, causing the door cover 2 to rotate. Then, the test plate 76 is inserted into the placement rack 75, and the support pad 77 is also inserted into the rack 75. The support pad 77 is gradually pushed into the rack 75. The support pad 77 is stepped, allowing it to secure the test plate 76 within the rack 75. This allows the support pad 77 to directly accommodate test plates 76 of different thicknesses, thus directly limiting the thickness of the test plates 76. The door cover 2 is then closed, and the worker observes the test chamber 1 through the viewing panel 3. At this point, the hydraulic cylinder 73 is activated, pushing the lower pressure block 74 downwards and applying downward pressure to the test plate 76, thereby causing the lower pressure block to... The pressure compresses the test plate 76, causing it to resist the downward pressure with its own strength. If the strength of the test plate 76 is low, it will deform under the downward pressure. At this time, the flatness measuring instrument 79 detects the change in the flatness of the test plate 76, and then determines the strength of the test plate 76 by measuring the change in flatness. The test plate 76 is inserted into the placement frame 75, and then the support pad 77 is inserted into the placement frame 75. The support pad 77 is gradually pushed into the placement frame 75. The support pad 77 is stepped, which allows the support pad 77 to use the steps on its surface to clamp the test plate 76 in the placement frame 75. This allows the support pad 77 to directly adapt to test plates 76 of different thicknesses, thus directly limiting the test plates 76 of different thicknesses.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adaptive hardness tester, comprising a test chamber (1), characterized in that: The test chamber (1) is provided with a hardness testing mechanism (7) on its inner side. The hardness testing mechanism (7) includes a fixed frame (71) fixedly connected to the inner wall of the test chamber (1). A guide platform (72) is fixedly connected to the upper end of the fixed frame (71). A hydraulic cylinder (73) is slidably connected to the inner side of the guide platform (72). A pressing block (74) is fixedly connected to the telescopic end of the lower end of the hydraulic cylinder (73). A placement frame (75) is fixedly connected to the inner wall of the test chamber (1) on the side close to the fixed frame (71). A test plate (76) is placed on the inner side of the placement frame (75). A support pad (77) is slidably connected to the bottom of the inner side of the placement frame (75). A stabilizing support rod (78) is fixedly connected to the lower end of the placement frame (75). A plane measuring instrument (79) is installed inside the guide platform (72).

2. The adaptive hardness tester according to claim 1, characterized in that: The upper end of the plane measuring instrument (79) is fixedly connected to a stabilizing rod (710), the fixed frame (71) is L-shaped, there are two sets of fixed frames (71), the upper end of the hydraulic cylinder (73) is fixedly connected to the top of the inner side of the test chamber (1), and the lower end of the pressure block (74) is in contact with the upper end of the test plate (76).

3. The adaptive hardness tester according to claim 2, characterized in that: The support pad (77) is stepped in shape, and the upper end of the support pad (77) contacts the lower end of the test plate (76). The lower end of the stabilizing support rod (78) is fixedly connected to the bottom of the inner side of the test chamber (1).

4. The adaptive hardness tester according to claim 2, characterized in that: The lower end of the plane measuring instrument (79) is in contact with the upper end of the test plate (76) near the front side of the lower pressure block (74), and the upper end of the stabilizing rod (710) is fixedly connected to the inner top of the test chamber (1) near the front side of the hydraulic cylinder (73).

5. An adaptive hardness tester according to claim 1, characterized in that: The inner side of the test chamber (1) is connected to the front side of the hardness testing mechanism (7) via a rotating shaft, and a transparent plate (3) is embedded inside the door cover (2). A door handle (4) is fixedly connected to the front end of the door cover (2).

6. An adaptive hardness tester according to claim 5, characterized in that: The lower end of the test chamber (1) is fixedly connected to a base (5), and the lower end of the base (5) is fixedly connected to a support leg (6). There are four sets of support legs (6), and the four sets of support legs (6) are distributed at the four corners of the lower end of the base (5).

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