Metal surface coating firmness testing device

Abstract

The utility model discloses a device for detecting the firmness of metal surface coating, comprising: a base, a power box is arranged at the rear of the base, a hydraulic motor is arranged in the power box; a turntable is arranged above the front of the base and is coaxially connected with the output shaft of the hydraulic motor, a cylindrical bending core block is coaxially arranged at the center of the turntable; a pressing block is arranged at intervals on one side of the bending core block, a telescopic mechanism is also arranged on the power box, and the telescopic mechanism is connected to the pressing block to drive the pressing block to press the plate to be detected on the bending core block; wherein a bending block is also arranged on the turntable to press against the upper part of the plate to be detected and bend the upper part of the plate to be detected as the turntable rotates; an encoder is also arranged in the power box, and a camera for photographing the bending surface of the plate to be detected is also arranged on the power box. The utility model can accurately repeat the bending radius of the sample, and with a camera and an encoder, it can quickly and accurately know the cracking angle of the coating cracking and peeling.

Description

Technical Field

[0001] The utility model relates to the technical field of coating firmness detection tooling, and more specifically, to a metal surface coating firmness detection device. Background Art

[0002] The application of coating is very extensive. However, no matter where it is used, good bonding between the coating and the substrate is the basic condition for the coating to play its role. The coating firmness refers to the bonding strength between the coating and the substrate. There are many ways to evaluate the coating firmness on the substrate surface, such as: bending the sample at a certain angle with pliers, and observing the bending surface of the sample with a microscope to see if there are cracks and peeling of the coating. For the coating of metal sheet as the substrate, the above method can quickly detect, but the bending radius of the sample cannot be well controlled by manual bending, and the sample needs to be transferred to the microscope after bending, which is a cumbersome process. Utility Model Content

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.

[0004] Another object of the utility model is to provide a metal surface coating firmness detection device, which can accurately repeat the bending radius of the sample and is equipped with a camera and an encoder, so as to quickly and accurately know the cracking angle of the coating when cracking and peeling occur.

[0005] In order to achieve these purposes and other advantages according to the utility model, a metal surface coating fastness detection device is provided, comprising:

[0006] A base, wherein a power box is arranged at the rear of the base, and a hydraulic motor with a horizontally arranged output shaft is fixedly arranged in the power box, and the output shaft of the hydraulic motor extends from the power box to the upper part of the front of the base;

[0007] A turntable, which is arranged above the front part of the base and is coaxially connected with the output shaft of the hydraulic motor so as to be driven to rotate by the hydraulic motor, and a cylindrical bending core block is coaxially arranged at the center of the turntable;

[0008] A pressing block is arranged at a distance on one side of the bending core block. A telescopic mechanism is also arranged on the power box. The telescopic mechanism is connected to the pressing block to drive the pressing block to press the plate to be tested against the bending core block.

[0009] Wherein, the rotating disk is also provided with a bending block, which is used to abut against the upper part of the plate to be detected and bend the upper part of the plate to be detected as the rotating disk rotates;

[0010] An encoder is also provided in the power box, and the encoder is connected to the output shaft of the hydraulic motor through a gear transmission to detect the rotation angle of the turntable;

[0011] The power box is also provided with a camera for photographing the curved surface of the plate to be detected.

[0012] Preferably, it further comprises a host computer with a screen, which is communicatively connected with the encoder and the camera to display the bending angle and bending surface of the plate to be detected.

[0013] Preferably, the telescopic mechanism is a hydraulic cylinder, and the hydraulic cylinder is connected to the outer side wall of the power box closest to the turntable through a support.

[0014] Preferably, an ear seat is provided on the base, and the lower end of the pressure block is hinged to the ear seat so that the pressure block can rotate in a vertical plane parallel to the turntable, and a slide groove is provided on the side wall of the pressure block facing away from the bending core block, and a slider is slidably connected in the slide groove, and the piston rod of the hydraulic cylinder is hinged to the slider to drive the upper part of the pressure block to approach or move away from the bending core block.

[0015] Preferably, the bending core block is detachably connected to the turntable.

[0016] Preferably, a plurality of bending core blocks are provided, each with different diameter specifications, so that one of them can be selected and connected to the turntable according to needs.

[0017] Preferably, the bent core block is threadedly connected to the turntable.

[0018] Preferably, the turntable is provided with a plurality of mounting holes, the plurality of mounting holes are at different distances from the center of the turntable, and the bending block can be selectively threadedly connected to one of the mounting holes.

[0019] Preferably, the bending block comprises: a block body and a rod body, one end of the rod body is threadedly connected to the mounting hole, the other end of the rod body is a smooth rod, a through hole is provided on the block body, and the smooth rod passes through the through hole to achieve rotational connection with the block body.

[0020] Preferably, the torque tonnage of the hydraulic motor is 0-10 tons.

[0021] The utility model includes at least the following beneficial effects: when testing the same type of plates to be tested, the present application can accurately repeat the bending radius of the sample by using the same bending core block, and try to keep the testing conditions consistent. At the same time, the detection device described in the present application is equipped with a camera and an encoder. The camera is used to capture the changes in the surface coating of the plate to be tested during the bending process, and the encoder records the angle of rotation of the turntable in real time, so as to quickly and accurately know the starting angle of cracking of the coating and the like.

[0022] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of the metal surface coating firmness detection device of the utility model;

[0024] Figure 2 This is a schematic diagram of the top view of the structure of the metal surface coating firmness detection device of the utility model (the camera and the bracket are not shown). DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0026] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figures 1-2 As shown, the utility model provides a metal surface coating firmness detection device, comprising:

[0028] A base 1, a power box 2 is arranged at the rear of the base 1, a hydraulic motor 3 with a horizontally arranged output shaft is fixedly arranged in the power box 2, and the output shaft of the hydraulic motor 3 extends from the power box 2 to the upper front of the base 1;

[0029] Here, the base 1 can be a plate or a box.

[0030] Here, the hydraulic motor 3 is connected to the power box 2 via a flange. A first through hole is provided on the side wall of the power box 2 near the front of the base 1 . The output shaft of the hydraulic motor 3 extends from the first through hole to the upper front of the base 1 .

[0031] Here, a bearing may be arranged in the first through hole, and the output shaft of the hydraulic motor 3 is rotatably connected to the side wall of the power box 2 via the bearing.

[0032] A turntable 4 is disposed above the front of the base 1 and is coaxially connected to the output shaft of the hydraulic motor 3 so as to be driven to rotate by the hydraulic motor 3. A cylindrical bending core block 5 is coaxially disposed at the center of the turntable 4.

[0033] Here, the bending core block 5 is detachably connected to the turntable 4. For example, a threaded hole is provided at the center of the turntable 4, a matching external thread is provided at one end of the bending core block 5, and the bending core block 5 is threadedly connected to the threaded hole.

[0034] A pressing block 6 is arranged at a distance on one side of the bending core block 5. A telescopic mechanism is also arranged on the power box 2. The telescopic mechanism is connected to the pressing block 6 to drive the pressing block 6 to press the plate to be tested against the bending core block 5.

[0035] Here, the telescopic mechanism can be a hydraulic cylinder 7, which is connected to the outer wall of the power box 2 closest to the turntable 4 through a support 8. For example, the hydraulic cylinder 7 is horizontally arranged above the front of the base 1, and the movement direction of the piston rod of the hydraulic cylinder 7 is parallel to the disk surface of the turntable 4.

[0036] Here, an ear seat 9 can be set on the base 1, and the lower end of the pressure block 6 can be hinged on the ear seat 9 so that the pressure block 6 can rotate in a vertical plane parallel to the turntable 4. The side wall of the pressure block 6 facing away from the bending core block 5 is provided with a slide groove, and a slider 10 is slidably connected in the slide groove. The piston rod of the hydraulic cylinder 7 is hinged to the slider 10 to drive the upper part of the pressure block 6 to approach or move away from the bending core block 5. In order to prevent the slider 10 from escaping from the slide groove, baffles can be set at both ends of the slide groove.

[0037] The rotating disk 4 is also provided with a bending block 11, which is used to abut against the upper part of the plate to be detected and rotate with the rotating disk 4 to bend the upper part of the plate to be detected;

[0038] Here, the bending block 11 can also be arranged on the turntable 4 in a detachable connection manner, for example, a mounting hole with an internal thread is opened on the turntable 4, a screw is arranged at one end of the bending block 11, the external thread on the screw matches the internal thread of the mounting hole, and the bending block 11 is threadedly connected to the mounting hole.

[0039] An encoder 12 is also provided in the power box 2, and the encoder 12 is connected to the output shaft of the hydraulic motor 3 through a gear transmission to detect the rotation angle of the turntable 4. Here, the output shaft of the hydraulic motor 3 in the power box 2 can be connected to a first gear 13, and the input shaft of the encoder 12 can be provided with a second gear 14 meshing with the first gear 13. The rotation angle of the turntable 4 can be converted by the transmission ratio of the first gear 13 and the second gear 14;

[0040] The power box 2 is also provided with a camera 15 for photographing the curved surface of the plate to be detected. Here, a bracket 16 can be provided on the outer side wall of the power box 2 closest to the turntable 4, and the camera 15 can be fixed on the bracket 16.

[0041] When the above embodiment is used, the turntable 4 is rotated to rotate the bending block 11 to the same side as the pressing block 6, and then the plate to be tested is placed between the bending core block 5 and the pressing block 6, and also between the bending block 11 and the bending core block 5, and then the hydraulic cylinder 7 is started to press the plate to be tested against the bending core block 5, and the turntable 4 is rotated until the bending block 11 presses against the plate to be tested, and then the hydraulic motor 3 is started to drive the bending block 11 on the turntable 4 to rotate away from the pressing block 6. Under the pressure of the bending block 11, the plate to be tested gradually bends, and the camera 15 captures the changes in the surface coating of the plate to be tested during the bending process in real time, and the encoder 12 records the angle of rotation of the turntable 4 in real time. When cracks or other phenomena appear on the surface of the plate to be tested, the angle of the encoder 12 recorded at that time is the cracking angle of the coating.

[0042] It is not difficult to see from the above use process that when testing the same type of plates to be tested, the present application can accurately repeat the bending radius of the sample by using the same bending core block 5, and try to keep the testing conditions consistent. For plates to be tested of different thicknesses, by adjusting the telescopic mechanism, they can also be clamped for testing, and the scope of application is relatively large.

[0043] In another embodiment, the metal surface coating firmness detection device further includes a host computer with a screen, which is communicatively connected to the encoder 12 and the camera 15 for displaying the bending angle and bending surface condition of the plate to be detected.

[0044] In the above embodiment, the staff can simultaneously observe the bending angle and bending surface of the plate to be tested through the host computer, which is convenient to use, and the host computer can be set far away from the plate to be tested, which is safer for the staff during testing.

[0045] In another embodiment, the bending core blocks 5 are provided in plurality, each with different diameters, so that one of them can be selected and connected to the turntable 4 as needed. In this way, when the plate to be inspected is a substrate of different materials and / or different thicknesses and a different bending radius is required, the bending core block 5 can be replaced and used, and has a wider range of applications.

[0046] In another embodiment, a plurality of mounting holes are provided on the turntable 4, and the plurality of mounting holes are at different distances from the center of the turntable 4. The bending block 11 can be selectively threadedly connected to one of the mounting holes. In this way, when the plate to be inspected is a substrate of different thicknesses, the position of the bending block 11 can be adjusted to achieve better coordination and a wider range of applicability.

[0047] In another embodiment, the bending block 11 includes: a block body and a rod body, one end of the rod body is threadedly connected to the mounting hole, the other end of the rod body is a smooth rod, a through hole is provided on the block body, and the smooth rod passes through the through hole to achieve a rotational connection with the block body.

[0048] In the above embodiment, since the bending block 11 is fixed on the turntable, for the samples to be tested with different substrate thicknesses, the contact portion between the bending block 11 and the sample to be tested is not necessarily exactly one surface. If the edge of the bending block 11 contacts the sample to be tested, the force application surface is too small, and safety is poor during large-tonnage force application tests. Therefore, in the above embodiment, the bending block is composed of a rod body and a block body rotatably connected to the rod body. After the rod body is connected to the turntable 4, the block body can rotate on the rod body to fit the surface of the sample to be tested clamped between the pressing block 6 and the bending core block 5, thereby increasing the contact surface between the block body and the sample to be tested.

[0049] In another embodiment, the torque tonnage of the hydraulic motor 3 is 0-10 tons. Here, the torque tonnage of 0-10 tons can be applied to most samples to be tested with substrates of different materials and / or different thicknesses.

[0050] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A device for detecting the firmness of metal surface coating, characterized in that: include: A base, wherein a power box is arranged at the rear of the base, and a hydraulic motor with a horizontally arranged output shaft is fixedly arranged in the power box, and the output shaft of the hydraulic motor extends from the power box to the upper part of the front of the base; A turntable, which is arranged above the front part of the base and is coaxially connected with the output shaft of the hydraulic motor so as to be driven to rotate by the hydraulic motor, and a cylindrical bending core block is coaxially arranged at the center of the turntable; A pressing block is arranged at a distance on one side of the bending core block. A telescopic mechanism is also arranged on the power box. The telescopic mechanism is connected to the pressing block to drive the pressing block to press the plate to be tested against the bending core block. Wherein, the rotating disk is also provided with a bending block, which is used to abut against the upper part of the plate to be detected and bend the upper part of the plate to be detected as the rotating disk rotates; An encoder is also provided in the power box, and the encoder is connected to the output shaft of the hydraulic motor through a gear transmission to detect the rotation angle of the turntable; The power box is also provided with a camera for photographing the curved surface of the plate to be detected.

2. The metal surface coating fastness detection device according to claim 1, characterized in that: It also includes a host computer with a screen, which is communicatively connected to the encoder and the camera to display the bending angle and bending surface of the plate to be detected.

3. The metal surface coating fastness detection device according to claim 1, characterized in that: The telescopic mechanism is a hydraulic cylinder, and the hydraulic cylinder is connected to the outer side wall of the power box closest to the turntable through a support.

4. The metal surface coating fastness detection device according to claim 3, characterized in that: An ear seat is provided on the base, and the lower end of the pressure block is hinged on the ear seat so that the pressure block can rotate in a vertical plane parallel to the turntable. A slide groove is provided on the side wall of the pressure block facing away from the bending core block, and a slider is slidably connected in the slide groove. The piston rod of the hydraulic cylinder is hinged to the slider to drive the upper part of the pressure block to approach or move away from the bending core block.

5. The metal surface coating fastness detection device according to claim 1, characterized in that: The bending core block is detachably connected to the turntable.

6. The metal surface coating fastness detection device according to claim 1, characterized in that: The bending core blocks are provided in plurality, each with different diameters, so that one of them can be selected and connected to the turntable according to the needs.

7. The metal surface coating fastness detection device according to claim 5, characterized in that: The bending core block is threadedly connected to the turntable.

8. The metal surface coating fastness detection device according to claim 1, characterized in that: The turntable is provided with a plurality of mounting holes, and the plurality of mounting holes are at different distances from the center of the turntable. The bending block can be selectively threadedly connected to one of the mounting holes.

9. The metal surface coating fastness detection device according to claim 8, characterized in that: The bending block comprises: a block body and a rod body, one end of the rod body is threadedly connected to the mounting hole, the other end of the rod body is a smooth rod, a through hole is provided on the block body, and the smooth rod passes through the through hole to achieve rotational connection with the block body.

10. The metal surface coating fastness detection device according to claim 1, characterized in that: The torque tonnage of the hydraulic motor is 0 to 10 tons.

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