Metal workpiece surface coating detection equipment

Abstract

The present invention discloses a metal workpiece surface coating detection device, which relates to the technical field of metal workpiece detection, and solves the problem that it is difficult for existing detection devices to select appropriate test methods for different products to effectively evaluate the corrosion resistance of metal coatings and chemical treatment layers, resulting in poor specific use functions, and the use of immersion testing methods undoubtedly causes waste of acid and alkaline solutions, making it difficult to achieve efficient utilization. The detection equipment includes an equipment platform, a rotating table, a first drive assembly, a clamping assembly, a support frame, and a dripping and spraying integrated mechanism; in the present invention, according to different coatings on different metal workpieces, four solutions can be replaced and used differently, so that the entire device can adaptively change the test solution according to different conditions of the coating on the metal workpiece, thereby improving the test range of the equipment, and ensuring the subsequent effective evaluation of the corrosion resistance of the metal coating and chemical treatment layer.

Description

Technical Field

[0001] The invention relates to the technical field of metal workpiece detection, in particular to metal workpiece surface coating detection equipment. Background Art

[0002] Metal components are widely used in the industrial field. In order to prevent corrosion, an insulating coating is usually applied on the surface of the metal component to isolate the corrosive environment from the base metal and extend the service life of the component. The quality of the insulating coating is crucial to the metal protection effect. The coating quality usually needs to be tested before or during use.

[0003] The existing Chinese patent application with publication number CN118090580A discloses a device for detecting the anti-corrosion performance of a coating on a metal bipolar plate of a hydrogen fuel cell, comprising a shell, the shell comprising an outer shell, a solution pool being provided inside the outer shell, a clamping and fixing component, a synchronous linkage component and a friction descaling component. In order to eliminate the influence of friction on the test results of the anti-corrosion performance of the coating, and to remove oxides and corrosive solutions on the surface of the metal bipolar plate during the process of removing the metal bipolar plate, the device drives a pair of friction rollers to rotate while inserting the metal bipolar plate body into the corrosive solution through the synchronous linkage component, rubbing the coating on the surface of the metal bipolar plate body, simulating the scene during actual use, and removing oxides on the surface of the metal bipolar plate by friction when removing the metal bipolar plate, thereby improving the accuracy of the test data.

[0004] However, the detection device has the following defects when used specifically:

[0005] 1. Since the corrosion resistance test methods of metal coatings and chemical treatment layers of light industrial products need to be selected according to different standards and requirements, customized tests need to be carried out according to the special requirements of the products in specific practical applications. However, the existing detection devices are only for single detection. It is difficult for the same device to select appropriate test methods for different products to effectively evaluate the corrosion resistance of metal coatings and chemical treatment layers, resulting in poor specific use functions.

[0006] 2. In existing detection devices, the anti-corrosion test method for metal coatings is often an immersion test in an acid or alkaline solution. The immersion test method will reduce the contact between the metal workpiece and oxygen, which will lead to a slower corrosion rate and affect the experimental cycle. At the same time, different metal workpieces require different acid or alkaline solution concentrations. Therefore, the use of the immersion test method will undoubtedly cause a waste of acid or alkaline solutions, making it difficult to achieve efficient utilization and not conducive to responding to the current energy-saving and environmentally friendly life concept. Summary of the invention

[0007] The purpose of the present invention is to provide a metal workpiece surface coating detection device to solve the problems raised in the above background technology.

[0008] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0009] The metal workpiece surface coating detection device provided by the present invention comprises a device platform and universal wheels arranged at the four corners of the bottom of the device platform, and further comprises:

[0010] A rotating table, the rotating table is rotatably connected to the top of the equipment platform;

[0011] A first driving assembly, which is disposed on the top of the equipment platform and is used to drive the rotating table to perform a horizontal rotation;

[0012] A clamping assembly, at least two of which are provided, and the two clamping assemblies are symmetrically arranged on the top of the rotating table, and the clamping assembly is used to clamp the metal workpiece to be inspected;

[0013] Support frames, the number of which is the same as the number of the clamping assemblies and they are aligned one by one, and the support frames are fixed to the top of the equipment platform;

[0014] The dripping and spraying integrated mechanism has the same number as the supporting frames and is fixed one by one on the supporting frames, and the dripping and spraying integrated mechanism corresponds to the clamping assembly up and down.

[0015] Preferably, the first driving assembly comprises:

[0016] A mounting frame, a first rotating shaft, a gear, a first motor and an annular toothed hole,

[0017] The mounting frame is fixed to the top of the equipment platform, the first rotating shaft vertically penetrates the mounting frame and is rotatably connected to the mounting frame, and the bottom end of the first rotating shaft is rotatably connected to the top of the equipment platform, the first motor is installed on the top of the mounting frame, and the output end of the first motor is connected to the top end of the first rotating shaft, and

[0018] The gear is sleeved on the outside of the first rotating shaft, the annular toothed hole is opened at the center of the rotating platform, and the annular toothed hole is meshed with the gear.

[0019] Preferably, the clamping assembly comprises:

[0020] The mounting box, the bearing plate, the clamping plate and the second drive assembly,

[0021] Among them, the bottom of the installation box is fixed to the top of the rotating table, the supporting plate is fixed to the top of the installation box, four clamps are provided, and the four clamps are respectively provided at the four sides of the top of the supporting plate, and the second driving component is used to drive the four clamps to move towards or away from each other.

[0022] Preferably, the second driving assembly comprises:

[0023] The slideway, the slider, the second motor, the second rotating shaft, the square block and the L-shaped hinge rod,

[0024] The number of the slide grooves is the same as the number of the clamping plates, the four slide grooves correspond to and are aligned with the four clamping plates, the slide grooves are opened on the top of the bearing plate, the slider is slidably connected to the inside of the slide groove, and the top of the slider is fixed to the bottom of the clamping plate, and

[0025] The second motor is installed inside the installation box, the second shaft vertically penetrates the carrying plate and extends to the inside of the installation box, the output end of the second motor is connected to the bottom end of the second shaft, the square block is sleeved on the outside of the second shaft and is located above the carrying plate, the number of the L-shaped hinged rods is the same as the number of the slide grooves and corresponds one to one, one end of the L-shaped hinged rod is hinged at a corner of the top of the square block, and the other end of the L-shaped hinged rod is hinged to the front end surface of the slider.

[0026] Preferably, the dripping and spraying integrated mechanism comprises:

[0027] Cylinder, transfer box, first connecting pipe, nozzle and second connecting pipe,

[0028] The cylinder is fixed on the support frame, and the cylinder is provided with four first arc-shaped cavities and four second arc-shaped cavities at equal intervals along its circumferential direction. The first arc-shaped cavity is located above the second arc-shaped cavity. A through hole connected to the first arc-shaped cavity is provided on the top of the cylinder, and a first central cavity is provided at the center of the cylinder. A conveying component is provided inside the first central cavity, and the conveying component is used to convey the liquid inside one of the first arc-shaped cavities to the second arc-shaped cavity below it, and

[0029] The transfer box is arranged at the center of the bottom of the cylinder, the first connecting pipe is used to connect the second arc cavity and the transfer box, the second connecting pipe is arranged at the center of the bottom of the transfer box, and the bottom end of the second connecting pipe is connected to the top end of the nozzle.

[0030] Preferably, a second central cavity is provided at the center of the transfer box, and four sub-cavities outside the second central cavity are provided at equal intervals inside the transfer box, a one-way blocking member is provided inside each sub-cavity, an end of the first connecting pipe is connected to the inside of the sub-cavity, and a top end of the second connecting pipe is connected to the inside of the second central cavity.

[0031] The one-way blocking member includes: a circular blocking block, a cavity, a connecting shaft, a baffle and a torsion spring.

[0032] Among them, the circular blocking block is fixed on the inner wall of the sub-cavity, the cavity is opened on both sides of the sub-cavity, and each of the one-way blocking members includes two cavities, the two ends of the connecting shaft are respectively rotatably connected to the inner walls of the two cavities, and the middle part of the connecting shaft passes through the sub-cavity and is sleeved with the baffle, the baffle cooperates with the circular blocking block, the torsion spring is arranged inside the cavity, and one end of the torsion spring is fixed inside the cavity, and the other end of the torsion spring is fixed to the outer wall of the connecting shaft.

[0033] Preferably, a fixed plate is fixed inside the second central cavity, and a rotating plate is rotatably connected to the top of the fixed plate. A heating tube located outside the rotating plate is also provided inside the second central cavity, and a temperature sensor is provided at the inner bottom end of the second central cavity.

[0034] Preferably, the first arc-shaped cavity is connected to the first central cavity through a first branch hole, and the second arc-shaped cavity is connected to the first central cavity through a second branch hole, and the delivery assembly includes:

[0035] Rotating block, water pump, support, round plate and rotating rod,

[0036] Wherein, the rotating block is arranged inside the first central cavity, and the outer wall of the rotating block rotates tightly with the inner wall of the first central cavity, a top cavity is opened on the top of the rotating block, and an inlet channel and an outlet channel are opened inside the rotating block, the water pump is installed inside the top cavity, and the input end of the water pump is connected to the inlet channel, and the output end of the water pump is connected to the outlet channel, the inlet channel and the outlet channel are located on the same side of the rotating block, and the inlet channel cooperates with the first branch hole, and the outlet channel cooperates with the second branch hole, and

[0037] The bottom end of the pillar is fixed to the inner top of the top cavity, the bottom of the circular plate is fixed to the top of the pillar, the bottom end of the rotating rod is fixed to the center of the top of the circular plate, and the top of the rotating rod penetrates to the outer top of the cylinder.

[0038] Preferably, the interior of the cylinder is further provided with four grooves located above the first central cavity, and the four grooves are evenly spaced, a spring is provided inside each of the grooves, and the end of the spring is connected to a connecting block, the other end of the connecting block is inlaid with a card ball, a card groove matching the card ball is provided on the outer side wall of the rotating rod, and a handle is connected to the top of the rotating rod.

[0039] Preferably, the interior of the nozzle is provided with a first chamber, a dripping hole, a second chamber and a spray hole, wherein the first chamber is opened above the dripping hole and the second chamber, the dripping hole and the second chamber are respectively connected to the first chamber, the spray holes are provided with a plurality of holes and are annularly distributed at the bottom of the nozzle, and the spray holes are connected to the second chamber, the bottom end of the second connecting pipe is connected to the interior of the first chamber, and

[0040] Two sliding blocks are slidably arranged inside the first chamber, and sliding plates are fixed at the opposite ends of the two sliding blocks. There are also yielding grooves at the opposite ends of the two sliding blocks, and openings are arranged on the sliding plates. An electromagnet is arranged on the inner wall of the first chamber, and the sliding plates are made of magnetic metal.

[0041] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0042] 1. In the metal workpiece surface coating detection equipment, the four first arc-shaped cavities can be used to hold salt water, pure water, acidic solution and alkaline solution respectively, and then the conveying assembly can only connect one of the first arc-shaped cavities with the corresponding second arc-shaped cavity, so that the solution inside the first arc-shaped cavity will enter the transfer box through the second arc-shaped cavity below it and the first connecting pipe, and then enter the nozzle through the second connecting pipe at the bottom of the transfer box, and finally spray out from the nozzle. Therefore, according to the different coatings on different metal workpieces, the four solutions can be replaced and used differently, so that the whole equipment can adaptively change the test solution according to the different conditions of the coating on the metal workpiece, thereby improving the test range of the equipment, and ensuring the subsequent effective evaluation of the corrosion resistance of the metal plating layer and the chemical treatment layer;

[0043] 2. In the metal workpiece surface coating detection equipment, when the electromagnet is controlled to generate magnetism, the sliding block and the electromagnet can be magnetically repelled or magnetically attracted, so the sliding state of the sliding block can be controlled. When the two sliding blocks approach each other, one of the sliding plates will be inserted into the yield groove on the other sliding block. The openings on the two sliding plates are connected to each other, and the dripping holes are also connected to them. At this time, the dripping holes can be used to make the liquid drip out in the form of water droplets or thin water columns. When the two sliding blocks are farthest away from each other, the openings on the sliding plates will be connected to the second chamber. , the liquid will be sprayed out from the spray hole, and the spray hole is set to have a large diameter at the top and a small diameter at the bottom, so that it has a Venturi effect, and then the liquid is sprayed in the form of fine water mist, thereby realizing two different liquid release methods. Combined with the four different liquids in the first arc-shaped cavity, different liquid release methods can be converted according to different liquids, thereby improving the overall convenient use effect. In addition, whether the liquid is released in a dripping or spraying manner, it can contact with the air, thereby increasing the corrosion rate, reducing the waste of the solution, achieving efficient utilization, and responding to the current energy-saving and environmentally friendly life concept;

[0044] 3. In the metal workpiece surface coating detection equipment, the two low-drop spray components on the top of the equipment platform can drip or spray the solution on the metal workpiece to be detected on their respective corresponding clamping components. After the dripping or spraying is completed, the first driving component can drive the rotating table to rotate ninety degrees, and then the corrosion condition of the surface coating of the metal workpiece after dripping or spraying is observed or detected, thereby completing the corrosion resistance detection of the surface coating of the metal workpiece. The whole device can detect two metal workpieces simultaneously, thereby improving the detection effect. At the same time, the use of the first driving component is more conducive to the subsequent detection and replacement of the metal workpiece, thereby reducing the experimental cycle.

[0045] 4. In the metal workpiece surface coating detection equipment, the second motor can drive the second rotating shaft and the square block to rotate. Under the action of the L-shaped hinged rod, the slide groove and the slider, the slider can drive the clamping plate to move, thereby completing the clamping or loosening of the metal workpiece to be detected, and can drive the four azimuth clamping plates to move synchronously, thereby achieving more efficient clamping. At the same time, the second motor is located inside the installation box, and the rotating shaft, square block and L-shaped hinged rod and other structures are made of corrosion-resistant materials, and they are directly below the metal workpiece to be detected and protected by the metal workpiece to be detected, so that the liquid dripping or sprayed by the dripping and spraying integrated mechanism is difficult to corrode the second drive component, thereby extending the use effect of the second drive component and being more conducive to long-term and efficient clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0047] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0049] Figure 2 is a schematic structural diagram of the first driving assembly in the present invention;

[0050] Figure 3 It is a structural schematic diagram of the clamping assembly in the present invention;

[0051] Figure 4 is a schematic structural diagram of the second driving assembly in the present invention;

[0052] Figure 5 It is a schematic diagram of the internal structure of the installation box after longitudinal sectioning in the present invention;

[0053] Figure 6 It is a structural schematic diagram of the dripping and spraying integrated mechanism of the present invention;

[0054] Figure 7 It is a schematic diagram of the internal structure of the cylinder after it is cross-sectioned in the present invention;

[0055] Figure 8 It is a schematic diagram of the internal structure of the cylinder after longitudinal sectioning in the present invention;

[0056] Fig. 9 It is a schematic diagram of the internal structure of the transfer box of the present invention after longitudinal sectioning;

[0057] Fig.10 It is a schematic diagram of the internal structure of the transfer box of the present invention after being cross-sectioned;

[0058] Fig.11 It is a structural schematic diagram of the one-way blocking member in the present invention;

[0059] Fig.12 The present invention Fig.11 The enlarged view of point A in the middle;

[0060] Fig.13 It is a structural schematic diagram of the conveying assembly in the present invention;

[0061] Fig.14 It is a schematic diagram of the internal structure of the transfer block after longitudinal sectioning in the present invention;

[0062] Fig.15 is a schematic diagram of the internal structure of the groove in the present invention;

[0063] Fig.16 It is a schematic diagram of the internal structure of the nozzle after longitudinal sectioning in the present invention;

[0064] Fig.17 It is a schematic diagram of the structure of the sliding block and the sliding plate inside the nozzle of the present invention in the front and rear states;

[0065] In the figure:

[0066] 1. Equipment platform; 2. Rotating table;

[0067] 3. First drive assembly; 31. Mounting frame; 32. First rotating shaft; 33. Gear; 34. First motor; 35. Annular toothed hole;

[0068] 4. Clamping assembly; 41. Mounting box; 42. Carrying plate; 43. Clamping plate; 44. Second driving assembly; 441. Sliding groove; 442. Sliding block; 443. Second motor; 444. Second rotating shaft; 445. Square block; 446. L-shaped hinge rod;

[0069] 5. Support frame;

[0070] 6. dripping and spraying integrated mechanism; 61. cylinder; 611. first arc cavity; 612. second arc cavity; 613. through hole; 614. first central cavity; 615. first branch hole; 616. second branch hole; 617. groove; 62. transfer box; 621. second central cavity; 622. sub-cavity; 623. one-way blocking member; 6231. round-shaped blocking block; 6232. cavity; 6233. connecting shaft; 6234. baffle; 6235. torsion spring; 63. first connecting pipe; 64. nozzle; 641 , first chamber; 642, drip hole; 643, second chamber; 644, spray hole; 645, sliding block; 646, sliding plate; 647, opening; 648, electromagnet; 649, give way groove; 65, second connecting pipe; 66, conveying assembly; 661, rotating block; 662, top chamber; 663, inlet channel; 664, outlet channel; 665, water pump; 666, pillar; 667, round plate; 668, rotating rod; 67, fixed plate; 68, rotating plate; 69, heating tube; 70, temperature sensor;

[0071] 7. Spring; 8. Connecting block; 9. Card ball; 10. Handle. DETAILED DESCRIPTION

[0072] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0073] See also Figure 1-Figure 17 , a metal workpiece surface coating detection device, comprising an equipment platform 1 and universal wheels arranged at the four corners of the bottom of the equipment platform 1, and also comprising a rotating table 2, a first driving component 3, a clamping component 4, a support frame 5 and a dripping and spraying integrated mechanism 6. Among them:

[0074] The rotating table 2 is rotatably connected to the top of the equipment platform 1; the first driving assembly 3 is arranged on the top of the equipment platform 1 and is used to drive the rotating table 2 to rotate horizontally; at least two clamping assemblies 4 are provided, and the two clamping assemblies 4 are symmetrically arranged on the top of the rotating table 2; the clamping assembly 4 is used to clamp the metal workpiece to be inspected; the number of support frames 5 is the same as the number of clamping assemblies 4 and they are aligned one by one, and the support frames 5 are fixed on the top of the equipment platform 1; the number of dripping and spraying integrated mechanisms 6 is the same as the number of support frames 5 and they are fixed one by one on the support frames 5, and the dripping and spraying integrated mechanisms 6 correspond to the clamping assemblies 4 up and down.

[0075] Specifically, the first driving assembly 3 includes a mounting frame 31, a first rotating shaft 32, a gear 33, a first motor 34 and an annular toothed hole 35, wherein the mounting frame 31 is fixed to the top of the equipment platform 1, the first rotating shaft 32 vertically penetrates the mounting frame 31 and is rotatably connected to the mounting frame 31, and the bottom end of the first rotating shaft 32 is rotatably connected to the top of the equipment platform 1, the first motor 34 is installed on the top of the mounting frame 31, and the output end of the first motor 34 is connected to the top of the first rotating shaft 32, and the gear 33 is sleeved on the outside of the first rotating shaft 32, and the annular toothed hole 35 is opened at the center of the rotating table 2, and the annular toothed hole 35 is meshed with the gear 33.

[0076] That is, combined Figure 1 and Figure 2It can be seen that when the first motor 34 is started by the external controller, the first motor 34 drives the first rotating shaft 32 and the gear 33 to rotate. Since the gear 33 is meshed with the annular toothed hole 35, the rotation of the gear 33 can cause the rotating table 2 to rotate. Therefore, when in use, the two lowered spray assemblies on the top of the equipment platform 1 can drip or spray the solution on the metal workpiece to be inspected on their respective corresponding clamping assemblies 4. After the dripping or spraying is completed, the first driving assembly 3 can drive the rotating table 2 to rotate ninety degrees, and then observe or detect the corrosion of the surface coating of the metal workpiece after dripping or spraying, thereby completing the corrosion resistance detection of the surface coating of the metal workpiece. The entire device can simultaneously detect two metal workpieces, thereby improving the detection effect. At the same time, the use of the first driving assembly 3 is more conducive to subsequent detection and replacement of metal workpieces, thereby reducing the experimental cycle.

[0077] Further, the clamping assembly 4 includes an installation box 41, a bearing plate 42, a clamping plate 43 and a second driving assembly 44, wherein the bottom of the installation box 41 is fixed to the top of the rotating table 2, the bearing plate 42 is fixed to the top of the installation box 41, four clamping plates 43 are provided, and the four clamping plates 43 are respectively provided at the four sides of the top of the bearing plate 42, and the second driving assembly 44 is used to drive the four clamping plates 43 to move toward or away from each other. And in this embodiment, the second driving assembly 44 includes a slide 441, a slider 442, a second motor 443, a second rotating shaft 444, a square block 445 and an L-shaped hinge rod 446, wherein the number of the slides 441 is the same as the number of the clamping plates 43, the four slides 441 correspond to and align with the four clamping plates 43 one by one, the slide 441 is opened at the top of the bearing plate 42, the slider 442 is slidably connected to the inside of the slide 441, and the top of the slider 442 is fixed between the bottom of the clamping plate 43, and the second motor 443 is arranged Installed inside the installation box 41, the second rotating shaft 444 vertically penetrates the supporting plate 42 and extends to the inside of the installation box 41, the output end of the second motor 443 is connected to the bottom end of the second rotating shaft 444, the square block 445 is sleeved on the outside of the second rotating shaft 444 and is located above the supporting plate 42, the number of L-shaped hinged rods 446 is the same as the number of slide grooves 441 and corresponds one to one, one end of the L-shaped hinged rod 446 is hinged at a corner of the top of the square block 445, and the other end of the L-shaped hinged rod 446 is hinged to the front end surface of the slider 442.

[0078] Specifically, when the clamping assembly 4 is in use, after the second motor 443 is started, the second motor 443 can drive the second rotating shaft 444 and the square block 445 to rotate. Under the action of the L-shaped hinge rod 446, the slide groove 441 and the slider 442, the slider 442 can drive the clamping plate 43 to move, thereby completing the clamping or loosening of the metal workpiece to be detected, and can drive the four azimuth clamping plates 43 to move synchronously, thereby achieving more efficient clamping. In addition, in this embodiment, the second motor 443 is located inside the installation box 41, and the rotating shaft, the square block 445 and the L-shaped hinge rod 446 are made of corrosion-resistant materials, and are located directly below the metal workpiece to be detected and protected by the metal workpiece to be detected, so that the liquid dripped or sprayed by the drip-spray integrated mechanism 6 is difficult to corrode the second drive assembly 44, thereby extending the use effect of the second drive assembly 44 and being more conducive to long-term and efficient clamping.

[0079] Furthermore, in this embodiment, the dripping and spraying integrated mechanism 6 includes a cylinder 61, a transfer box 62, a first connecting pipe 63, a nozzle 64 and a second connecting pipe 65, wherein the cylinder 61 is fixed on the support frame 5, and the cylinder 61 is provided with four first arc-shaped cavities 611 and four second arc-shaped cavities 612 at equal intervals along its circumferential direction, the first arc-shaped cavity 611 is located above the second arc-shaped cavity 612, the top of the cylinder 61 is provided with a through hole 613 connected to the first arc-shaped cavity 611 one by one, and the cylinder 61 A first central cavity 614 is opened at the center of the interior, and a conveying assembly 66 is arranged inside the first central cavity 614. The conveying assembly 66 is used to convey the liquid inside one of the first arc-shaped cavities 611 to the inside of the second arc-shaped cavity 612 below it, and the transfer box 62 is arranged at the center of the bottom of the cylinder 61, and the first connecting pipe 63 is used to connect the second arc-shaped cavity 612 and the transfer box 62. The second connecting pipe 65 is arranged at the center of the bottom of the transfer box 62, and the bottom end of the second connecting pipe 65 is connected to the top of the nozzle 64.

[0080] At the same time, a second central cavity 621 is provided at the center of the transfer box 62, and four sub-cavities 622 are provided at equal intervals outside the second central cavity 621. A one-way blocking member 623 is provided inside each sub-cavity 622. The end of the first connecting tube 63 is connected to the inside of the sub-cavity 622, and the top of the second connecting tube 65 is connected to the inside of the second central cavity 621. The one-way blocking member 623 includes a circular blocking block 6231, a cavity 6232, a connecting shaft 6233, a baffle 6234 and a torsion spring 6235. 1 is fixed on the inner wall of the sub-cavity 622, the cavities 6232 are opened on both sides of the sub-cavity 622, and each one-way blocking member 623 includes two cavities 6232, the two ends of the connecting shaft 6233 are rotatably connected to the inner walls of the two cavities 6232, and the middle part of the connecting shaft 6233 passes through the sub-cavity 622 and is sleeved with a baffle 6234, the baffle 6234 is matched with the circular blocking block 6231, the torsion spring 6235 is arranged inside the cavity 6232, and one end of the torsion spring 6235 is fixed inside the cavity 6232, and the other end of the torsion spring 6235 is fixed to the outer wall of the connecting shaft 6233.

[0081] In addition, the first arc cavity 611 is connected to the first central cavity 614 through the first branch hole 615, and the second arc cavity 612 is connected to the first central cavity 614 through the second branch hole 616. The conveying assembly 66 includes a rotating block 661, a water pump 665, a support 666, a circular plate 667 and a rotating rod 668, wherein the rotating block 661 is arranged inside the first central cavity 614, and the outer wall of the rotating block 661 rotates closely with the inner wall of the first central cavity 614, a top cavity 662 is opened on the top of the rotating block 661, and an inlet channel 663 and an outlet channel 664 are opened inside the rotating block 661, and the water pump 665 It is installed inside the top cavity 662, and the input end of the water pump 665 is connected to the inlet channel 663, and the output end of the water pump 665 is connected to the outlet channel 664, the inlet channel 663 and the outlet channel 664 are located on the same side of the rotating block 661, and the inlet channel 663 cooperates with the first branch hole 615, and the outlet channel 664 cooperates with the second branch hole 616, and the bottom end of the support column 666 is fixed to the inner top of the top cavity 662, the bottom of the circular plate 667 is fixed to the top of the support column 666, the bottom end of the rotating rod 668 is fixed to the center of the top of the circular plate 667, and the top of the rotating rod 668 passes through to the outer top of the cylinder 61.

[0082] Therefore, when the above-mentioned dripping and spraying integrated mechanism 6 is in use, the four first arc-shaped cavities 611 can be used to contain salt water, pure water, acidic solution and alkaline solution respectively, and then the conveying component 66 can only connect one of the first arc-shaped cavities 611 with the corresponding second arc-shaped cavity 612, so that the solution inside the first arc-shaped cavity 611 will enter the transfer box 62 through the second arc-shaped cavity 612 below it and the first connecting pipe 63, and then enter the nozzle 64 through the second connecting pipe 65 at the bottom of the transfer box 62, and finally be sprayed out from the nozzle 64. Therefore, according to the different coatings on different metal workpieces, different replacements of the four solutions can be achieved, so that the entire equipment can adaptively change the test solution according to the different conditions of the coating on the metal workpiece, thereby improving the test range of the equipment and ensuring the subsequent effective evaluation of the corrosion resistance of the metal plating and chemical treatment layer.

[0083] Specifically, the operation of the driving assembly is as follows: when the rotating rod 668 is rotated, the rotating rod 668 can drive the circular plate 667, the support 666 and the rotating block 661 to rotate. Fig.13 and Fig.14 It can be seen that since the inlet channel 663 and the outlet channel 664 are arranged on the same side, and the inlet channel 663 and the outlet channel 664 are arranged to be connected to only one of the first branch holes 615 and the second branch hole 616, when the rotating block 661 is rotated to connect the inlet channel 663 to one of the first branch holes 615, the outlet channel 664 will also be connected to one of the second branch holes 616, thereby completing the connection between the first arc cavity 611 and the second arc cavity 612. At this time, the water pump 665 is started, and the water pump 665 can transport the liquid in the first arc cavity 611 to the second arc cavity 612, and then transport it to the inside of the transfer box 62 through the first connecting pipe 63. Since a one-way blocking member 623 is provided inside the transfer box 62, the remaining first connecting pipes 63 will not be affected, so that the liquid enters the inside of the nozzle 64 through the second connecting pipe 65.

[0084] In addition, the specific working principle of the one-way blocking member 623 is as follows: in the initial state, under the action of the torsion spring 6235, the baffle 6234 will fit with the circular blocking block 6231, so that the second central cavity 621 and the sub-cavity 622 are not connected. When the liquid in one of the sub-cavities 622 flows, under the action of pressure, the torsion spring 6235 is stressed and causes the baffle 6234 to rotate, thereby connecting the second central cavity 621 and the sub-cavity 622. The remaining baffles 6234 are always used to block the second central cavity 621 and the remaining sub-cavities 622, so as to ensure that only the solution in one second arc-shaped cavity 612 enters the interior of the nozzle 64 through the transfer box 62.

[0085] In addition, in order to further improve the use effect, combined with Fig.10 It can be seen that a fixed plate 67 is also fixed inside the second central cavity 621, and a rotating plate 68 is rotatably connected to the top of the fixed plate 67. A heating tube 69 located outside the rotating plate 68 is also provided inside the second central cavity 621, and a temperature sensor 70 is provided at the inner bottom end of the second central cavity 621. When liquid enters the second central cavity 621, the rotating plate 68 rotates under the influence of the liquid flow. At this time, the second central cavity 621 can have a certain temperature through the provided heating tube 69 and the temperature sensor 70, thereby improving the subsequent test effect.

[0086] At the same time, the cylinder 61 is provided with four grooves 617 located above the first central cavity 614, and the four grooves 617 are evenly spaced. A spring 7 is provided inside each groove 617, and the end of the spring 7 is connected to a connecting block 8, and the other end of the connecting block 8 is inlaid with a card ball 9. A card slot matching the card ball 9 is provided on the outer wall of the rotating rod 668, and a handle 10 is connected to the top of the rotating rod 668, that is, the handle 10 can facilitate the rotation of the rotating rod 668, and when the rotating rod 668 rotates, the card slot will engage with the card ball 9, and the card slot corresponds to and aligns with the first branch hole 615 or the second branch hole 616 one by one. Therefore, when the card ball 9 is stuck in the card slot, it means that one of the first branch holes 615 is connected to the inlet channel 663, and one of the second branch holes 616 is also connected to the outlet channel 664, thereby ensuring the docking effect after the rotating block 661 is rotated.

[0087] Furthermore, the interior of the nozzle 64 is provided with a first chamber 641, a dripping hole 642, a second chamber 643 and a spray hole 644, wherein the first chamber 641 is opened above the dripping hole 642 and the second chamber 643, the dripping hole 642 and the second chamber 643 are respectively communicated with the first chamber 641, a plurality of spray holes 644 are provided and annularly distributed at the bottom of the nozzle 64, and the spray holes 644 are communicated with the second chamber 643, the bottom end of the second connecting pipe 65 is connected to the interior of the first chamber 641, and two sliding blocks 645 are slidably provided inside the first chamber 641, and sliding plates 646 are fixed to the opposite ends of the two sliding blocks 645, and yield grooves 649 are also provided at the opposite ends of the two sliding blocks 645, and an opening 647 is provided on the sliding plate 646, an electromagnet 648 is provided on the inner side wall of the first chamber 641, and the sliding plate 646 is made of magnetic metal.

[0088] That is, combined Fig.16 and Fig.17It can be seen that when the control electromagnet 648 generates magnetism, the sliding block 645 and the electromagnet 648 can be magnetically repelled or magnetically attracted, so the sliding state of the sliding block 645 can be controlled. When the two sliding blocks 645 approach each other, one of the sliding plates 646 will be inserted into the yield groove 649 on the other sliding block 645, and the openings 647 on the two sliding plates 646 are connected to each other, and the drip hole 642 is also connected thereto. Fig.17 As shown in the structure in the upper middle part, the dripping hole 642 can be used to make the liquid drip out in the form of water drops or thin water columns, and when the two sliding blocks 645 are farthest away from each other, the opening 647 on the sliding plate 646 will be connected to the second chamber 643, so the liquid will be sprayed out from the spray hole 644, as shown in FIG. Fig.17 As shown in the structure in the lower middle part, the spray hole 644 has a larger aperture at the top and smaller aperture at the bottom, which has a Venturi effect, so that the liquid is sprayed out in the form of fine water mist, thereby realizing two different liquid release methods. Combined with the four different liquids in the first arc-shaped cavity 611, different liquid release methods can be converted according to different liquids, thereby improving the overall convenient use effect. Regardless of whether the liquid is released in the form of dripping or spraying, it can come into contact with the air, thereby increasing the corrosion rate, reducing the waste of solution, achieving efficient utilization, and responding to the current energy-saving and environmentally friendly life concept.

[0089] Specifically, it is worth mentioning that the testing methods of the above four solutions are: 1. Salt water: salt spray test, in which the corrosion resistance of the metal workpiece surface coating is tested by spraying salt water; 2. Pure water: wet heat test, in which the pure water is heated to become high-temperature water vapor, and then the corrosion resistance of the metal workpiece surface coating is tested by dripping or spraying; 3. Acid solution: acid test, in which the corrosion resistance of the metal workpiece surface coating is tested by dripping or spraying an acidic solution; 4. Alkaline solution: alkaline test, in which the corrosion resistance of the metal workpiece surface coating is tested by dripping or spraying an alkaline solution.

[0090] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal workpiece surface coating detection device, comprising a device platform (1) and universal wheels arranged at the four corners of the bottom of the device platform (1), characterized in that: Also includes: A rotating platform (2), the rotating platform (2) being rotatably connected to the top of the equipment platform (1); A first driving component (3), the first driving component (3) being arranged on the top of the equipment platform (1) and being used to drive the rotating table (2) to perform a lateral horizontal rotation; A clamping assembly (4), wherein at least two of the clamping assemblies (4) are provided, and the two clamping assemblies (4) are symmetrically arranged on the top of the rotating table (2), and the clamping assemblies (4) are used to clamp the metal workpiece to be inspected; Support frames (5), the number of the support frames (5) being the same as the number of the clamping assemblies (4) and being aligned one by one, and the support frames (5) being fixed on the top of the equipment platform (1); a dripping and spraying integrated mechanism (6), wherein the number of the dripping and spraying integrated mechanisms (6) is the same as the number of the support frames (5) and they are fixed one by one on the support frames (5), and the dripping and spraying integrated mechanisms (6) correspond to the clamping assembly (4) in a vertical manner; The dripping and spraying integrated mechanism (6) comprises: A cylinder (61), a transfer box (62), a first connecting pipe (63), a nozzle (64) and a second connecting pipe (65), The cylinder (61) is fixed on the support frame (5), and the cylinder (61) is provided with four first arc-shaped cavities (611) and four second arc-shaped cavities (612) at equal intervals along its circumferential direction. The first arc-shaped cavities (611) are located above the second arc-shaped cavities (612). A through hole (613) connected one-to-one with the first arc-shaped cavities (611) is provided at the top of the cylinder (61), and a first central cavity (614) is provided at the center of the cylinder (61). A conveying component (66) is provided inside the first central cavity (614), and the conveying component (66) is used to convey the liquid inside one of the first arc-shaped cavities (611) to the inside of the second arc-shaped cavity (612) below it, and The transfer box (62) is arranged at the center of the bottom of the cylinder (61), the first connecting pipe (63) is used to connect the second arc-shaped cavity (612) and the transfer box (62), the second connecting pipe (65) is arranged at the center of the bottom of the transfer box (62), and the bottom end of the second connecting pipe (65) is connected to the top end of the nozzle (64).

2. The metal workpiece surface coating detection device according to claim 1, characterized in that: The first driving component (3) comprises: A mounting frame (31), a first rotating shaft (32), a gear (33), a first motor (34), and an annular toothed hole (35), The mounting frame (31) is fixed to the top of the equipment platform (1); the first rotating shaft (32) vertically penetrates the mounting frame (31) and is rotatably connected to the mounting frame (31); the bottom end of the first rotating shaft (32) is rotatably connected to the top of the equipment platform (1); the first motor (34) is mounted on the top of the mounting frame (31); the output end of the first motor (34) is connected to the top end of the first rotating shaft (32); and The gear (33) is sleeved on the outside of the first rotating shaft (32), the annular toothed hole (35) is opened at the center of the rotating platform (2), and the annular toothed hole (35) is meshed with the gear (33).

3. The metal workpiece surface coating detection device according to claim 1, characterized in that: The clamping assembly (4) comprises: The mounting box (41), the carrying plate (42), the clamping plate (43) and the second driving assembly (44) are The bottom of the installation box (41) is fixed to the top of the rotating table (2), the supporting plate (42) is fixed to the top of the installation box (41), four clamping plates (43) are provided, and the four clamping plates (43) are respectively provided at four sides of the top of the supporting plate (42), and the second driving component (44) is used to drive the four clamping plates (43) to move towards or away from each other.

4. The metal workpiece surface coating detection device according to claim 3 is characterized in that: The second driving assembly (44) comprises: A slide groove (441), a slider (442), a second motor (443), a second rotating shaft (444), a square block (445), and an L-shaped hinge rod (446). The number of the slide grooves (441) is the same as the number of the clamping plates (43), the four slide grooves (441) correspond to and are aligned with the four clamping plates (43), the slide grooves (441) are opened at the top of the bearing plate (42), the slider (442) is slidably connected to the inside of the slide groove (441), and the top of the slider (442) is fixed to the bottom of the clamping plate (43), and The second motor (443) is installed inside the installation box (41), the second rotating shaft (444) vertically penetrates the supporting plate (42) and extends to the inside of the installation box (41), the output end of the second motor (443) is connected to the bottom end of the second rotating shaft (444), the square block (445) is sleeved on the outside of the second rotating shaft (444) and is located above the supporting plate (42), the number of the L-shaped hinged rods (446) is the same as the number of the slide grooves (441) and corresponds one to one, one end of the L-shaped hinged rod (446) is hinged to a corner of the top of the square block (445), and the other end of the L-shaped hinged rod (446) is hinged to the front end surface of the slider (442).

5. The metal workpiece surface coating detection device according to claim 1, characterized in that: A second central cavity (621) is provided at the center of the transfer box (62), and four sub-cavities (622) are provided at equal intervals outside the second central cavity (621) inside the transfer box (62), and a one-way blocking member (623) is provided inside each of the sub-cavities (622). The end of the first connecting tube (63) is connected to the inside of the sub-cavity (622), and the top end of the second connecting tube (65) is connected to the inside of the second central cavity (621). The one-way blocking member (623) comprises: a circular blocking block (6231), a cavity (6232), a connecting shaft (6233), a baffle (6234), and a torsion spring (6235). The circular blocking block (6231) is fixed on the inner wall of the sub-cavity (622), the cavity (6232) is opened on both sides of the sub-cavity (622), and each of the one-way blocking members (623) includes two cavities (6232), the two ends of the connecting shaft (6233) are rotatably connected to the inner walls of the two cavities (6232), and the middle part of the connecting shaft (6233) passes through the sub-cavity (622) and is sleeved with the baffle (6234), the baffle (6234) cooperates with the circular blocking block (6231), the torsion spring (6235) is arranged inside the cavity (6232), and one end of the torsion spring (6235) is fixed inside the cavity (6232), and the other end of the torsion spring (6235) is fixed to the outer wall of the connecting shaft (6233).

6. The metal workpiece surface coating detection device according to claim 5, characterized in that: A fixed plate (67) is fixed inside the second central cavity (621), and a rotating plate (68) is rotatably connected to the top of the fixed plate (67). A heating tube (69) located outside the rotating plate (68) is also provided inside the second central cavity (621), and a temperature sensor (70) is provided at the inner bottom end of the second central cavity (621).

7. The metal workpiece surface coating detection device according to claim 1, characterized in that: The first arc-shaped cavity (611) is connected to the first central cavity (614) via a first branch hole (615), and the second arc-shaped cavity (612) is connected to the first central cavity (614) via a second branch hole (616). The conveying assembly (66) comprises: A rotating block (661), a water pump (665), a support (666), a circular plate (667) and a rotating rod (668), The rotating block (661) is arranged inside the first central cavity (614), and the outer wall of the rotating block (661) rotates tightly with the inner wall of the first central cavity (614). A top cavity (662) is opened on the top of the rotating block (661), and an inlet channel (663) and an outlet channel (664) are opened inside the rotating block (661). The water pump (665) is installed inside the top cavity (662), and the input end of the water pump (665) is connected to the inlet channel (663), and the output end of the water pump (665) is connected to the outlet channel (664). The inlet channel (663) and the outlet channel (664) are located on the same side of the rotating block (661), and the inlet channel (663) cooperates with the first branch hole (615), and the outlet channel (664) cooperates with the second branch hole (616), and The bottom end of the support (666) is fixed to the inner top of the top cavity (662), the bottom of the circular plate (667) is fixed to the top of the support (666), the bottom end of the rotating rod (668) is fixed to the center of the top of the circular plate (667), and the top of the rotating rod (668) passes through the outer top of the cylinder (61).

8. The metal workpiece surface coating detection device according to claim 7, characterized in that: The cylinder (61) is further provided with four grooves (617) located above the first central cavity (614), and the four grooves (617) are evenly spaced. A spring (7) is provided inside each of the grooves (617), and the end of the spring (7) is connected to a connecting block (8), and the other end of the connecting block (8) is inlaid with a locking ball (9). The outer wall of the rotating rod (668) is provided with a locking groove that matches the locking ball (9), and the top end of the rotating rod (668) is connected to a handle (10).

9. The metal workpiece surface coating detection device according to claim 1, characterized in that: The nozzle (64) is provided with a first chamber (641), a dripping hole (642), a second chamber (643) and a spray hole (644) inside, wherein the first chamber (641) is provided above the dripping hole (642) and the second chamber (643), the dripping hole (642) and the second chamber (643) are respectively connected to the first chamber (641), a plurality of spray holes (644) are provided and annularly distributed at the bottom of the nozzle (64), and the spray holes (644) are connected to the second chamber (643), the bottom end of the second connecting pipe (65) is connected to the inside of the first chamber (641), and Two sliding blocks (645) are slidably arranged inside the first chamber (641), and sliding plates (646) are fixed to the opposite ends of the two sliding blocks (645). The opposite ends of the two sliding blocks (645) are also provided with a clearance groove (649), and the sliding plate (646) is provided with an opening (647). An electromagnet (648) is arranged on the inner wall of the first chamber (641), and the sliding plate (646) is made of magnetic metal.

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