Hardmeter convenient for multidirectional limiting

Abstract

The durometer comprises a positioning base, two supporting baffles are fixedly connected to the upper surface of the positioning base, an upper mounting plate is arranged above the positioning base, an electric push rod is fixedly connected to the surface of the upper mounting plate, and a detection head is fixedly mounted on the lower surface of the upper mounting plate. And a groove is formed in the upper surface of the positioning base. The durometer convenient for multidirectional limiting is provided with a supporting sliding plate and a side fixing plate, so that when the durometer works, the supporting sliding plate is driven to slide by rotating a limiting lead screw, the end, provided with a rubber mat, of the supporting sliding plate is convenient to press a to-be-tested piece, and meanwhile, the two ends of the supporting sliding plate drive a first magnet to correspond to a second magnet; and the first magnet is in a long-strip design, so that the supporting sliding plate can limit the to-be-tested pieces with different widths conveniently, and it is ensured that the first magnet repels the second magnet.

Description

Technical Field

[0001] The utility model relates to the technical field of hardness testers, in particular to a hardness tester which is convenient for multi-directional limiting. Background Art

[0002] A hardness tester is a hardness testing instrument. The definition of hardness was first proposed by Leomure, which indicates the ability of a material to resist being pressed into its surface by a hard object. It is one of the important performance indicators of metal materials. Generally, the higher the hardness, the better the wear resistance. Hardness testing is the simplest and most practical test method in mechanical property testing. In order to use hardness testing to replace certain mechanical property tests, a more accurate conversion relationship between hardness and strength is required in production. Hardness testers can be divided into: indentation hardness tester, rebound hardness tester, scratch hardness tester, etc. According to the measurement principle, indentation hardness tester uses a certain shape of indenter to press into the surface of the material under test under a certain load, and the hardness value is determined by the size of the indentation. Rebound hardness tester uses a heavy hammer with a certain mass dropped from a certain height. After impacting the surface of the material under test, it bounces back and the hardness of the material is determined by the height of the hammer's rebound.

[0003] When an existing hardness tester is working, if there is dirt, dust, etc. on the surface of the material being tested, these impurities may remain on the workbench during the hardness test. In addition, some powdered or granular materials may be partially scattered during the test, forming impurities on the workbench. These impurities are likely to increase the wear of the hardness tester workbench and reduce the service life of the hardness tester workbench. Utility Model Content

[0004] The purpose of the present utility model is to provide a hardness tester that is convenient for multi-directional limiting, so as to solve the problem proposed in the above background technology that part of the material may be scattered during the test process, thereby forming impurities on the workbench, and these impurities easily increase the wear of the hardness tester workbench and reduce the service life of the hardness tester workbench.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a hardness tester convenient for multi-directional limiting, comprising a positioning base, an upper surface of which is fixedly connected to two supporting baffles, an upper mounting plate is provided above the positioning base, the surface of the upper mounting plate is fixedly connected to an electric push rod, and a detection head is fixedly installed on the lower surface of the upper mounting plate, the upper surface of the positioning base is provided with a groove, the inner wall of the positioning base groove is fixedly connected to a supporting baffle, the front surface of the positioning base is provided with an opening, and the inner wall of the positioning base opening is provided with a collecting box, the front surface of the positioning base is rotatably connected to a limiting screw, the outer surface of one end of the limiting screw is provided with a supporting slide, the side surfaces of both ends of the supporting slide are fixedly connected to a first magnet, the inner wall of the positioning base groove is slidably connected to two side fixing plates, the lower end side surface of the side fixing plate is fixed with a connecting column, and one end of the connecting column is fixedly connected to a second magnet.

[0006] Preferably, the side surface of the support baffle is provided with an opening, the output end of the electric push rod passes through the surface of the upper mounting plate, and the output end of the electric push rod is fixedly connected to the surface of the support baffle.

[0007] By adopting the above technical solution, the output end of the electric push rod is fixedly connected to the surface of the support baffle, so that the electric push rod can drive the upper mounting plate to slide.

[0008] Preferably, an opening is provided on the surface of the supporting baffle, and the supporting baffle is communicated with the collection box.

[0009] By adopting the above technical solution, impurities can be easily introduced through the opening of the supporting baffle, so that the impurities enter the collection box for collection and facilitate subsequent centralized processing.

[0010] Preferably, the limiting screw is threadedly connected to the supporting slide, one end of the supporting slide passes through the inner wall of the positioning base groove, and a rubber pad is provided on the end of the supporting slide that passes through the inner wall of the positioning base groove.

[0011] By adopting the above technical solution, the limiting screw is rotated to drive the supporting slide to slide, and the rubber pad at one end of the supporting slide is used to limit and prevent the test piece from slipping.

[0012] Preferably, the horizontal cross-section of the supporting slide is a mountain-shaped design, the first magnet is a long strip design, and the magnetic poles of the first magnet and the second magnet facing each other are the same, and a spring is connected between the side fixing plate and the positioning base.

[0013] By adopting the above technical solution, the supporting slide plate slides, so that the supporting slide plate drives the first magnet to approach the second magnet and repel it.

[0014] Preferably, a protective slide is slidably connected between the positioning base and the supporting baffle, and locking blocks are slidably connected to the surfaces of the two supporting baffles. A cleaning brush is fixedly connected to the lower side surface of the protective slide.

[0015] By adopting the above technical solution, the protective slide plate is limited by the positioning base and the support baffle, and the protective slide plate is limited by the sliding of the locking block.

[0016] Preferably, the protective slide plate is an inverted L-shaped design, and a spring is connected between the protective slide plate and the positioning base, a spring is connected between the locking block and the support baffle, two positioning grooves are provided on the surface of the protective slide plate, the cleaning brush plate passes through the side surface of the positioning base, and a brush is provided on the lower surface of one end of the cleaning brush plate.

[0017] By adopting the above technical solution, the cleaning brush plate is driven to slide by the protective slide plate, so that the brush of the cleaning brush plate cleans the surface of the supporting baffle.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the hardness tester with multi-directional limitation is:

[0019] 1. A support slide and a side fixing plate are provided. When the device is working, the support slide is driven to slide by rotating the limit screw, so that the end of the support slide provided with the rubber pad can press the workpiece to be tested. At the same time, the two ends of the support slide drive the first magnet to correspond to the second magnet, so that the second magnet drives the connecting column and the side fixing plate to slide to further press and fix the workpiece to be tested. Since the first magnet is designed as a long strip, it is convenient for the support slide to limit the workpieces to be tested of different widths, ensuring that the first magnet repels the second magnet;

[0020] 2. A protective slide and a locking block are provided. When the device is working, the protective slide is combined to protect the interior of the positioning base when not in use, reducing the ingress of impurities. The locking block engages the protective slide to improve stability. When working, the two protective slides are unfolded by sliding and fixed by the locking block, making it easier for the electric push rod to drive the detection head to rise and fall for detection, thereby improving practicality.

[0021] 3. A cleaning brush plate and a supporting baffle are provided. When the device is working, the sliding of the protective slide plate drives the cleaning brush plate to unfold, which is convenient for placing the test piece on the surface of the supporting baffle. After the work is completed, the sliding of the protective slide plate is closed, so that the protective slide plate drives the cleaning brush plate to move horizontally, and the impurities on the surface of the supporting baffle are cleaned by the cleaning brush plate, so that the impurities enter the collection box from the opening of the supporting baffle, which is convenient for subsequent centralized treatment of the impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a schematic diagram of the three-dimensional structure of the positioning base and the supporting baffle connected to the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the protective slide plate and the locking block connected to the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the connection between the supporting baffle and the collection box of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the connection between the supporting slide plate and the first magnet of the utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the connection between the connecting column and the second magnet of the utility model;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the protective slide plate and the cleaning brush plate connected to the utility model.

[0028] In the figure: 1. Positioning base; 2. Support baffle; 3. Upper mounting plate; 4. Electric push rod; 5. Detection head; 6. Support baffle; 7. Collection box; 8. Limit screw; 9. Support slide; 10. First magnet; 11. Side fixing plate; 12. Connecting column; 13. Second magnet; 14. Protective slide; 15. Locking block; 16. Cleaning brush plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-6The utility model provides a technical solution: a hardness tester that is convenient for multi-directional limiting, comprising a positioning base 1, a supporting baffle 2, an upper mounting plate 3, an electric push rod 4, a detection head 5, a supporting baffle 6, a collection box 7, a limiting screw 8, a supporting slide 9, a first magnet 10, a side fixing plate 11, a connecting column 12, a second magnet 13, a protective slide 14, a locking block 15 and a cleaning brush plate 16. The positioning base 1 has two supporting baffles 2 fixedly connected to its upper surface, and an opening is provided on the side surface of the supporting baffle 2. The output end of the electric push rod 4 passes through the upper mounting plate 3. The surface of the electric push rod 4 is fixedly connected to the surface of the supporting baffle 2. The surface of the supporting baffle 6 is provided with an opening, and the supporting baffle 6 is communicated with the collecting box 7. When using this device, first slide the two locking blocks 15 upward to unlock the protective slide 14, and unfold the two protective slides 14 to facilitate the protective slide 14 to drive the cleaning brush plate 16 to unfold, and place the workpiece to be tested on the surface of the supporting baffle 6, and then lock the unfolded protective slide 14 again through the locking block 15 to improve the stability of the protective slide 14.

[0031] An upper mounting plate 3 is provided above the positioning base 1, and an electric push rod 4 is fixedly connected to the surface of the upper mounting plate 3, and a detection head 5 is fixedly installed on the lower surface of the upper mounting plate 3. A groove is provided on the upper surface of the positioning base 1, and a supporting baffle 6 is fixedly connected to the inner wall of the groove of the positioning base 1. The limiting screw 8 and the supporting slide 9 are threadedly connected, and one end of the supporting slide 9 passes through the inner wall of the groove of the positioning base 1. A rubber pad is provided on the end of the supporting slide 9 that passes through the inner wall of the groove of the positioning base 1. The supporting slide 9 is driven to move by rotating the limiting screw 8. The rubber pad at one end of the supporting slide 9 is used to facilitate the pressing and fixing of the workpiece to be tested, which increases the friction for stability and prevents damage to the surface of the workpiece to be tested. At the same time, the two ends of the supporting slide 9 will drive the two first magnets 10 to slide.

[0032] The front surface of the positioning base 1 is provided with an opening, and the inner wall of the opening of the positioning base 1 is provided with a collecting box 7. The front surface of the positioning base 1 is rotatably connected to a limit screw 8, and the outer surface of one end of the limit screw 8 is provided with a supporting slide 9. The side surfaces of both ends of the supporting slide 9 are fixedly connected with a first magnet 10. The horizontal cross-section of the supporting slide 9 is a mountain-shaped design. The first magnet 10 is a long strip design, and the magnetic poles of the first magnet 10 and the second magnet 13 facing each other are the same. A spring is connected between the side fixing plate 11 and the positioning base 1. After the first magnet 10 moves, its side surface corresponds to the second magnet 13. Since the first magnet 10 is a long strip design, when the supporting slide 9 limits the test pieces of different sizes, the first magnet 10 can repel the second magnet 13. Then the second magnet 13 will drive the connecting column 12 and the side fixing plate 11 to move, thereby pressing and fixing the side of the test piece, so that the device can effectively fix the test piece by limiting in different directions. Finally, the electric push rod 4 drives the upper mounting plate 3 and the detection head 5 to rise and fall for detection.

[0033] The inner wall of the groove of the positioning base 1 is slidably connected with two side fixing plates 11, and the lower end side surface of the side fixing plate 11 is fixed with a connecting column 12, and one end of the connecting column 12 is fixedly connected with a second magnet 13. A protective slide 14 is slidably connected between the positioning base 1 and the support baffle 2. The surfaces of the two support baffles 2 are slidably connected with a locking block 15. The lower end side surface of the protective slide 14 is fixedly connected with a cleaning brush plate 16. The protective slide 14 is an inverted L-shaped design, and a spring is connected between the protective slide 14 and the positioning base 1. The locking block 15 is connected to the support baffle 2. There is a spring, and two positioning grooves are set on the surface of the protective slide plate 14. The cleaning brush plate 16 passes through the side surface of the positioning base 1. The lower surface of one end of the cleaning brush plate 16 is provided with a brush. After the detection is completed, the workpiece to be tested is taken out, and the protective slide plate 14 is unlocked by sliding the locking block 15. The two protective slide plates 14 slide and merge under the pull of the spring to reset, so that the protective slide plate 14 drives the cleaning brush plate 16 to move, and the surface of the supporting baffle 6 is cleaned by the cleaning brush plate 16, so that impurities enter the collection box 7 from the opening of the supporting baffle 6 for collection, which is convenient for subsequent centralized processing.

[0034] Working principle: When using the hardness tester with multi-directional limitation, first slide the locking block 15 to unlock the protective slide 14, slide the two protective slides 14 to drive the cleaning brush plate 16 to unfold, and place the workpiece to be tested on the surface of the supporting baffle 6, then rotate the limiting screw 8 to drive the supporting slide 9 to fix the workpiece to be tested, and at the same time, the supporting slide 9 drives the first magnet 10 to repel the second magnet 13, so that the second magnet 13 drives the connecting column 12 and the side fixing plate 11 to slide to limit the workpiece to be tested, and the upper mounting plate 3 and the detection head 5 are driven to rise and fall for detection by the electric push rod 4, and finally, the workpiece to be tested is taken out, and the locking block 15 is slid up to facilitate the spring to pull the protective slide 14 to slide and merge, and at the same time, the protective slide 14 drives the cleaning brush plate 16 to slide, so that the cleaning brush plate 16 cleans the surface of the supporting baffle 6, and the collection box 7 collects impurities for centralized treatment, which increases the overall practicality.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hardness tester convenient for multi-directional positioning, comprising a positioning base (1), the upper surface of which is fixedly connected to two supporting baffles (2), characterized in that: An upper mounting plate (3) is provided above the positioning base (1), a surface of the upper mounting plate (3) is fixedly connected to an electric push rod (4), a lower surface of the upper mounting plate (3) is fixedly installed with a detection head (5), an upper surface of the positioning base (1) is provided with a groove, an inner wall of the groove of the positioning base (1) is fixedly connected to a supporting baffle (6), a front surface of the positioning base (1) is provided with an opening, and an inner wall of the opening of the positioning base (1) is provided with a collecting box (7), a front surface of the positioning base (1) is rotatably connected to a limiting screw (8), an outer surface of one end of the limiting screw (8) is provided with a supporting slide (9), both end side surfaces of the supporting slide (9) are fixedly connected to a first magnet (10), the inner wall of the groove of the positioning base (1) is slidably connected to two side fixing plates (11), a lower end side surface of the side fixing plate (11) is fixed with a connecting column (12), and one end of the connecting column (12) is fixedly connected to a second magnet (13).

2. A hardness tester with multi-directional positioning according to claim 1, characterized in that: The side surface of the support baffle (2) is provided with an opening, the output end of the electric push rod (4) passes through the surface of the upper mounting plate (3), and the output end of the electric push rod (4) is fixedly connected to the surface of the support baffle (2).

3. A hardness tester with multi-directional positioning according to claim 1, characterized in that: An opening is provided on the surface of the supporting baffle (6), and the supporting baffle (6) is in communication with the collecting box (7).

4. A hardness tester with multi-directional positioning according to claim 1, characterized in that: The limiting screw (8) is threadedly connected to the supporting slide (9), one end of the supporting slide (9) passes through the inner wall of the groove of the positioning base (1), and a rubber pad is provided on the end of the supporting slide (9) passing through the inner wall of the groove of the positioning base (1).

5. The hardness tester with multi-directional positioning according to claim 1, characterized in that: The horizontal cross-section of the supporting slide plate (9) is designed to be mountain-shaped, the first magnet (10) is designed to be long strip-shaped, and the magnetic poles of the first magnet (10) and the second magnet (13) facing each other are the same, and a spring is connected between the side fixing plate (11) and the positioning base (1).

6. The hardness tester with multi-directional positioning capability according to claim 1, characterized in that: A protective slide plate (14) is slidably connected between the positioning base (1) and the supporting baffle (2), and locking blocks (15) are slidably connected to the surfaces of the two supporting baffles (2). A cleaning brush plate (16) is fixedly connected to the lower end side surface of the protective slide plate (14).

7. A hardness tester with multi-directional positioning according to claim 6, characterized in that: The protective slide plate (14) is of an inverted L-shaped design, and a spring is connected between the protective slide plate (14) and the positioning base (1), and a spring is connected between the locking block (15) and the supporting baffle (2). Two positioning grooves are provided on the surface of the protective slide plate (14), and the cleaning brush plate (16) passes through the side surface of the positioning base (1), and a brush is provided on the lower surface of one end of the cleaning brush plate (16).

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