Device for testing hardness of coating of metering machine

Abstract

The utility model discloses a measuring machinery coating hardness testing device which comprises a testing table, a mounting plate is arranged at the top of the testing table, a top plate is fixedly connected to the top end of the mounting plate, a driving part is mounted at the top end of the inner wall of the top plate, and two movable plates are movably inserted into the surface of the mounting plate in a penetrating mode. A testing head is arranged at the bottom of the mounting plate, a fixed block is fixedly connected between the tops of the two movable plates, and a pressure sensor is mounted in the middle of the bottom end of the mounting plate. According to the utility model, the pressure sensor and the ejector pin are arranged, so that the distance between the ejector pin and the pressure sensor is equal to the distance between the nib of the testing head and the test piece when the driving part applies driving force to the testing head to enable the testing head to apply pressure to the test piece, and therefore, when the nib of the testing head applies pressure to the test piece, the test piece can be accurately tested. The ejector pin also applies the same pressure to the pressure sensor, and the pressure sensor transmits the pressure value monitored in real time to an externally connected control system.

Description

TECHNICAL FIELD

[0001] The utility model relates to material technical field especially relates to a kind of measurement mechanical coating hardness testing device. BACKGROUND

[0002] Measurement mechanical coating is a kind of covering applied to the surface of measurement machinery (such as measuring instrument), aims at improving the durability, performance and function of equipment, and measurement mechanical coating hardness testing device is a professional equipment for measuring and evaluating coating hardness, which plays a crucial role in ensuring coating quality and performance, such as pencil hardness tester, electric pencil hardness tester and the like.

[0003] The utility model with publication number CN219265992U discloses a kind of coating hardness temperature control testing devices, "since test piece is fixed in thermostat element, the experimental temperature of test piece is more diversified;The sliding element of thermostat element is moved, so that the pencil on fixed assembly is drawn on the surface of test sample, the counterweight of the vertical rod provided on the upper end of pencil is adjusted, so that the pressure of pencil to test sample is maintained constant, the difference when manual operation is reduced, the objectivity of experimental result is improved, in addition to the coating hardness under different temperatures can be determined, the result of experiment can be more accurate", although "traditional pencil hardness tester can only test coating hardness under room temperature, cannot characterize coating hardness under different application temperature application scene", but the pressure between pencil nib on the testing device and test piece is adjusted by using counterweight, and the weight of counterweight is usually fixed, difficult to fine-tune, which often cannot meet the demand of accurate control of pressure, therefore a kind of measurement mechanical coating hardness testing device is proposed. UTILITY MODEL CONTENT

[0004] Based on this, it is necessary to provide a kind of measurement mechanical coating hardness testing device for the above technical problems.

[0005] In order to solve the above technical problems, the utility model solves the problem that the pressure between pencil nib and test piece is difficult to fine-tune through the following technical scheme.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of measurement mechanical coating hardness testing device, comprising:

[0008] Test table, the top of the test table is provided with mounting plate, the top end of the mounting plate is fixedly connected with top plate, the top end of the inner wall of the top plate is installed with driving part;

[0009] Two movable plates, two movable plates are movably inserted on the surface of the mounting plate, the bottom of the mounting plate is provided with a test head, the top of the two movable plates is fixedly connected with a fixed block, the middle of the bottom end of the mounting plate is provided with a pressure sensor, the test head and the movable plate are provided with an angle adjusting part.

[0010] As a preferred embodiment of the mechanical coating hardness testing device, the bottom end of the fixed block is fixedly connected with a thimble, the output end of the driving part is drivingly connected with the fixed block, the bottom end of the fixed block is fixedly connected with a thimble, the output end of the driving part is drivingly connected with the fixed block, and the driving part and the pressure sensor are electrically connected with the external control system.

[0011] As a preferred embodiment of the mechanical coating hardness testing device, the top plate is designed in a U shape, and the driving part is a cylinder.

[0012] As a preferred embodiment of the mechanical coating hardness testing device, the angle adjusting part comprises a rotating strip arranged between the bottoms of the two movable plates, rotating rods are fixedly connected to the two side walls of the rotating strip, and the test head is fixedly connected with the rotating strip.

[0013] As a preferred embodiment of the mechanical coating hardness testing device, one end of the rotating rod is fixedly connected with the movable plate, and the other end of the rotating rod movably penetrates the surface of the other movable plate and is fixedly connected with a convex strip.

[0014] As a preferred embodiment of the mechanical coating hardness testing device, the bottom of one side wall of the other movable plate is fixedly connected with a sector plate, and a plurality of positioning grooves are formed in the surface of the sector plate.

[0015] As a preferred embodiment of the mechanical coating hardness testing device, the surface of the convex strip movably penetrates a positioning nail, and one end of the positioning nail is in clamping connection with the positioning groove.

[0016] As a preferred embodiment of the mechanical coating hardness testing device, the top end of the test table is provided with a translation device.

[0017] As a preferred embodiment of the mechanical coating hardness testing device, the translation device is provided with a moving plate, and the moving plate is fixedly connected with the mounting plate.

[0018] As a preferred embodiment of the utility model provides a kind of mechanical coating hardness testing device of measurement, multiple the positioning groove is annular array distribution, with the positioning nail moving trajectory is adapted.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The mechanical coating hardness testing device of measurement provided by the utility model can apply driving force to the test head by the driving portion, so that the test head applies pressure to the test piece, the distance between the thimble and the pressure sensor is equal to the distance between the test head nib and the test piece, so that the thimble applies the same pressure to the pressure sensor while the test head nib applies pressure to the test piece, and the pressure sensor transmits the real-time monitored pressure value to the externally connected control system, so that the control system can fine-tune the driving portion according to the preset pressure value to realize accurate control of the test pressure.

[0021] The mechanical coating hardness testing device of measurement provided by the utility model can adjust the inclination angle of the test head by rotating the rotating bar as needed, and then insert the positioning nail into the corresponding positioning groove to realize positioning of the test head, so that the test head can perform hardness testing on the test piece according to the preset inclination angle. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings needed in the embodiments will be briefly introduced as follows: obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0023] Figure 1 The overall structure schematic diagram provided by the utility model is shown in the figure.

[0024] Figure 2 The structure schematic diagram of part provided by the utility model is shown in the figure.

[0025] Figure 3 The structure schematic diagram provided by the utility model is shown in the figure. Figure 2 The structure schematic diagram of right view provided by the utility model is shown in the figure.

[0026] Figure 4 The structure schematic diagram of left view provided by the utility model is shown in the figure. Figure 2 The structure schematic diagram of bottom view provided by the utility model is shown in the figure.

[0027] Figure 5 The structure schematic diagram of partial disassembly provided by the utility model is shown in the figure.

[0028] Figure 6The utility model provides a structure schematic view that test head is connected with angle adjusting spare.

[0029] The figure mark explanation is as follows:

[0030] 1, test platform, 2, mounting plate, 3, top plate, 4, drive part, 5, movable plate, 6, test head, 7, fixed block, 8, pressure sensor, 9, thimble, 10, angle adjusting spare, 101, rotating strip, 102, rotating rod, 103, sector plate, 104, positioning groove, 105, convex strip, 106, positioning nail, 11, translation device, 12, moving plate. Specific embodiments

[0031] In order to make the personnel in the technical field better understand the utility model scheme, below will combine the drawings in the embodiment of the utility model, clear, complete technical scheme in the embodiment of the utility model is described, obviously, the described embodiment only is a part of the embodiment of the utility model, but not all the embodiments. Based on the embodiment in the utility model, all other embodiments that the person skilled in the art obtains without making creative labor should belong to the scope of the utility model protection. Embodiment

[0032] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 And Figure 6 , a kind of measurement mechanical coating hardness testing device, including test platform 1, the top of test platform 1 is provided with mounting plate 2, the top of mounting plate 2 is fixedly connected with top plate 3, and the top end of the inner wall of top plate 3 is installed with drive part 4;

[0033] Two movable plates 5, two movable plates 5 are movably inserted in the surface of mounting plate 2, the bottom of mounting plate 2 is provided with test head 6, for the hardness test to test piece, the top of two movable plates 5 is fixedly connected with fixed block 7, and two movable plates 5 and fixed block 7 form a H-shaped frame, and the middle part of the bottom end of mounting plate 2 is installed with pressure sensor 8, which monitors and records the pressure value applied on test piece in real time, and test head 6 is provided with angle adjusting spare 10 between movable plate 5.

[0034] Preferably, the bottom end of fixed block 7 is fixedly connected with thimble 9, fixed block 7 is drivingly connected with the output end of drive part 4, the bottom end of fixed block 7 is fixedly connected with thimble 9, fixed block 7 is drivingly connected with the output end of drive part 4, drive part 4 and pressure sensor 8 are electrically connected with external control system, and the control system is prior art, and will not be described here, and top plate 3 is designed as U-shaped, and drive part 4 is specifically air cylinder.

[0035] Preferably, the angle adjusting piece 10 comprises a rotating strip 101 arranged between the bottoms of the two movable plates 5, both side walls of the rotating strip 101 are fixedly connected with rotating rods 102, the test head 6 is fixedly connected with the rotating strip 101, the fixed connection is detachable, one end of the rotating rod 102 is fixedly connected with the movable plate 5, the other end of the rotating rod 102 is movably penetrated through the surface of the other movable plate 5 and is fixedly connected with a convex strip 105, the bottom of the side wall of the other movable plate 5 is fixedly connected with a sector plate 103, the sector plate 103 rotates around the center of the rotating rod 102, the surface of the sector plate 103 is provided with a plurality of positioning grooves 104, the surface of the convex strip 105 is movably penetrated with positioning nails 106, one end of the positioning nail 106 is clamped and connected with the positioning groove 104, and the plurality of positioning grooves 104 are arranged in an annular array and are matched with the movement track of the positioning nail 106.

[0036] Preferably, the top end of the test table 1 is provided with a translation device 11 on one side, which is convenient for the tester to test the test piece at different positions, is prior art and will not be repeated here, the translation device 11 is provided with a moving plate 12, the moving plate 12 is fixedly connected with the mounting plate 2 and is detachably connected through screws and screw holes, meanwhile, the moving plate 12 can be provided with screw holes of different heights, so that the height of the test head 6 can be adjusted.

[0037] The use process of the mechanical coating hardness testing device is as follows: first, the worker installs the test head 6 on the rotating strip 101, then moves the positioning nail 106 to one side according to the need, so that one end of the positioning nail 106 is separated from the inner cavity of the positioning groove 104, the positioning of the rotating strip 101 is released, then the worker can adjust the inclination angle of the test head 6, after completion, the positioning nail 106 is moved to one side and enters the inner cavity of the corresponding position positioning groove 104, so that the positioning of the test head 6 is realized, when the hardness of the test piece is tested, the external control system is used for pre-setting the pressure value of the pressure sensor 8, when the test head 6 is driven downward by the driving part 4 and contacts the test piece, the thimble 9 also contacts the pressure sensor 8 at the same time, when the pressure applied by the test head 6 to the test piece exceeds the preset pressure value, the external control system stops the driving part 4 from applying pressure to the test head 6, so that the accurate control of the test pressure is realized.

[0038] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection or each other can communicate;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relation, unless another definite limitation.For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0039] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, and not all the embodiments, and the preferred embodiments of the utility model are given in the drawings, but do not limit the patent range of the utility model.The utility model can be realized in many different forms, and contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive.Although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing each specific embodiment can be modified, or part of the technical features can be replaced equivalently.The equivalent structure made by using the contents of the utility model specification and drawings, direct or indirect use in other related technical fields, are also within the patent protection range of the utility model.

Claims

1. A mechanical coating hardness testing device, characterized by, It includes: Test platform (1), the top of the test platform (1) is provided with a mounting plate (2), the top end of the mounting plate (2) is fixedly connected with a top plate (3), the top end of the inner wall of the top plate (3) is provided with a driving part (4); Two movable plates (5), two movable plates (5) are movably inserted into the surface of the mounting plate (2), the bottom of the mounting plate (2) is provided with a test head (6), the top of the two movable plates (5) is fixedly connected with a fixed block (7), the middle of the bottom of the mounting plate (2) is provided with a pressure sensor (8), the test head (6) and the movable plate (5) are provided with an angle adjusting part (10).

2. A mechanical coating hardness testing device according to claim 1, wherein, The bottom end of the fixed block (7) is fixedly connected with a top pin (9), the fixed block (7) and the output end of the driving part (4) are drivingly connected, and the driving part (4) and the pressure sensor (8) are electrically connected with the external control system.

3. A mechanical coating hardness testing device according to claim 1, wherein The top plate (3) is U-shaped, and the driving part (4) is a cylinder.

4. A mechanical coating hardness testing device according to claim 1, wherein The angle adjusting part (10) comprises a rotating strip (101) arranged between the bottoms of the two movable plates (5), both side walls of the rotating strip (101) are fixedly connected with rotating rods (102), and the test head (6) is fixedly connected with the rotating strip (101).

5. A mechanical coating hardness testing device according to claim 4, wherein One end of the rotating rod (102) is fixedly connected with the movable plate (5), and the other end of the rotating rod (102) is movably penetrated through the surface of the other movable plate (5) and fixedly connected with a convex strip (105).

6. A mechanical coating hardness testing device according to claim 1, wherein The bottom of one side wall of the other movable plate (5) is fixedly connected with a fan-shaped plate (103), and a plurality of positioning grooves (104) are formed in the surface of the fan-shaped plate (103).

7. A mechanical coating hardness testing device according to claim 5, wherein The surface of the convex strip (105) movably penetrates a positioning nail (106), one end of the positioning nail (106) is clampedly connected with the positioning groove (104).

8. A mechanical coating hardness testing device according to claim 1, wherein The top end of the test platform (1) is provided with a translation device (11).

9. A mechanical coating hardness testing device according to claim 8, wherein, The translation device (11) is provided with a moving plate (12), and the moving plate (12) is fixedly connected with the mounting plate (2).

10. A mechanical coating hardness testing device according to claim 6, wherein A plurality of positioning grooves (104) are annularly arranged and matched with the moving track of the positioning nail (106).

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