Manual polishing device for assisting in aluminum plate surface micro-deformation detection

Abstract

The utility model relates to a manual polishing device for assisting aluminum plate surface micro-deformation detection, which comprises a fixing plate with a handle on the upper side surface, the bottom surface of the fixing plate is connected with a sponge layer, the lower side of the sponge layer is provided with a bottom plate, the lower side of the bottom plate is coated with a sand net, and the sand net is provided with a grinding wheel. And the two ends of the sand screen turn to the upper side respectively and are connected with a clamping device arranged on the upper side of the fixing plate. The polishing device is compact in structure, the surface of the aluminum plate can be manually polished conveniently, and loss is reduced.

Description

Technical Field

[0001] The utility model relates to a manual grinding device for assisting the detection of micro-deformation on the surface of an aluminum plate. Background Art

[0002] After aluminum plates are manufactured, they usually need to be inspected to avoid defects (convexities or concavities). The surface inspection of aluminum plates has always relied on the naked eye or surface inspection systems, and slight deformations (convexities or concavities) on the strip surface are difficult to detect. If the surface of the aluminum plate can be manually polished, it will help to detect defects with the naked eye. However, the existing devices for manual polishing of aluminum plate surfaces are usually inconvenient to operate and have high losses. Utility Model Content

[0003] The utility model aims to provide a manual grinding device for assisting the detection of micro-deformation on the surface of an aluminum plate. The grinding device has a compact structure, is convenient for manually grinding the surface of the aluminum plate, and reduces loss.

[0004] The technical solution of the utility model is: a manual grinding device for assisting the detection of micro-deformation of the surface of an aluminum plate, comprising a fixing plate with a handle on the upper side, a sponge layer connected to the bottom surface of the fixing plate, a bottom plate provided on the lower side of the sponge layer, a sand net covered on the lower side of the bottom plate, and two ends of the sand net turned upward and connected to a clamping device provided on the upper side of the fixing plate.

[0005] Furthermore, the fixing plate is a stainless steel sheet with a layer of foam board adhered to the bottom surface, the handle is fixed on the upper side of the stainless steel sheet, and the bottom plate is a foam board.

[0006] Furthermore, the fixing plate and the bottom plate are both foam plates.

[0007] Furthermore, both sides of the fixing plate are provided with countersunk holes which pass through the fixing plate from bottom to top, and locking bolts which are fixedly connected to the handle ends are provided in the countersunk holes.

[0008] Furthermore, the clamping device includes fixing clamps arranged on both sides of the upper end surface of the fixing plate, and the ends of the sand screen are connected to the fixing clamps.

[0009] Furthermore, the thickness of the fixing plate is 2-4 mm; the thickness of the sponge layer is 15-25 mm; and the thickness of the bottom plate is 2-4 mm.

[0010] Furthermore, the sand screen is a 500-mesh sand screen.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The manual grinding device has a simple and compact structure, is easy to operate, and uses a rectangular sand net, which is conducive to making full use of the sand net material and reducing loss and procurement costs. In addition, the manual grinding device is used to grind the surface of the aluminum plate, which helps to convert deformation into color differences, so that defects can be easily detected by naked eyes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 A cross-sectional view of an embodiment of the utility model;

[0015] Figure 3 A schematic diagram of a top view of a shadowless light source arrangement;

[0016] In the figure: 1-grinding platform 2-wide body bracket integrated lamp 10-fixing plate 11-stainless steel thin plate 12-foam board 13-locking bolt 20-sponge layer 30-bottom plate 40-sand net 50-handle 60-fixing clamp. DETAILED DESCRIPTION

[0017] In order to make the above features and advantages of the present invention more understandable, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.

[0018] refer to Figure 1 and Figure 2

[0019] A manual grinding device for assisting in the detection of micro-deformation on the surface of an aluminum plate, comprising a fixed plate 10 with a handle 11 on the upper side, a sponge layer 20 connected to the bottom surface of the fixed plate, a bottom plate 30 provided on the lower side of the sponge layer, a sand net 40 covered on the lower side of the bottom plate, and two ends of the sand net turned upward and connected to a clamping device provided on the upper side of the fixed plate.

[0020] In this embodiment, both sides of the fixing plate are provided with countersunk holes which pass through the fixing plate from bottom to top, and locking bolts 13 which are fixedly connected to the end of the handle are provided in the countersunk holes.

[0021] In this embodiment, the fixing plate is a stainless steel sheet 11 with a layer of foam board 12 attached to the bottom surface. The thickness of the stainless steel sheet is 0.3 mm. The foam board is a high foam material with a hardness of 38, with a thickness of 2-4 mm, preferably 2 mm. The handle is fixed to the upper side of the stainless steel sheet, and the locking bolt passes through the countersunk hole and is fixedly connected to the handle. The bottom plate is a foam board made of a high foam material with a hardness of 38, with a thickness of 2-4 mm, preferably 3 mm. The high foam material can be an EVA foam panel.

[0022] In another embodiment, the fixing plate and the bottom plate may both be foam plates with a hardness of 38.

[0023] In this embodiment, the thickness of the sponge layer is 15-25 mm, preferably 20 mm, and the sponge layer can be fixed to the lower side of the fixing plate by adhesive. The bottom plate can be fixed to the lower side of the sponge layer by adhesive, or the bottom plate can be directly attached to the lower side of the sponge layer.

[0024] In this embodiment, the sand screen may be a 500-mesh sand screen.

[0025] In this embodiment, the clamping device includes a fixing clamp 60 disposed on both sides of the upper end surface of the fixing plate, and the ends of the sand net are connected to the fixing clamp. The fixing clamp is a metal clamp with a clamping force achieved by a torsion spring. The ends of the sand net are connected to the fixing clamp to achieve the clamping of the sand net; at the same time, the ends of the bottom plate, the sponge layer, and the fixing plate are covered by the sand net, and the side of the bottom plate is also wrapped by the sand net.

[0026] The method of using the grinding device to assist in detecting micro-deformation on the surface of the aluminum plate is as follows:

[0027] 1. Design a grinding workbench: a plane with a height of 900 mm, a width of 2500 mm, and a length of 4000 mm, with a layer of 15 mm thick high foam material (38 hardness) on the plane;

[0028] 2. Design a set of shadowless light sources: above the polishing workbench 1, install a set of 13 wide-body bracket integrated lights 2 (5 on each side are symmetrically arranged vertically, and 3 are evenly distributed horizontally in the middle), as shown in the top view. Figure 2 As shown, the height between the lamp and the work platform surface is 1100mm;

[0029] 3. Place the sample to be inspected on the polishing table, and use the polishing device to polish the sample surface back and forth along the arc for 3 times at the same position. The surface will be bright after polishing. Gradually move the polishing position to cover the entire sample surface, and then check the surface under a shadowless light source. If the surface is partially bright or dark in color, it is a defect;

[0030] 4. After grinding and inspecting one side, turn the sample over and repeat the grinding and inspection as above.

[0031] The inspection of the aluminum plate surface has always relied on the naked eye or surface detection system. Slight deformation (convexity or concaveness) on the strip surface is difficult to detect. Through this method, the deformation can be converted into color difference, so that defects can be easily detected with the naked eye.

[0032] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the fixed connection to each other can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except where it is obviously impossible to use an one-piece molding process).

[0033] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.

[0034] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated molding process.

[0035] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A manual grinding device for assisting the detection of micro-deformation on the surface of an aluminum plate, comprising a fixing plate with a handle on the upper side, characterized in that: The bottom surface of the fixed plate is connected to a sponge layer, a bottom plate is provided on the lower side of the sponge layer, a sand net is covered on the lower side of the bottom plate, and both ends of the sand net are turned upward and connected to a clamping device provided on the upper side of the fixed plate.

2. The manual grinding device for assisting the detection of micro-deformation on the surface of aluminum plate according to claim 1 is characterized in that: The fixing plate is a stainless steel sheet with a layer of foam board adhered to the bottom surface, the handle is fixed on the upper side of the stainless steel sheet, and the bottom plate is a foam board.

3. The manual grinding device for assisting the detection of micro-deformation on the surface of an aluminum plate according to claim 1, characterized in that: The fixing plate and the bottom plate are both foam plates.

4. The manual grinding device for assisting the detection of micro-deformation on the surface of an aluminum plate according to claim 1, 2 or 3, characterized in that: Both sides of the fixing plate are provided with countersunk holes which pass through the fixing plate from bottom to top, and locking bolts which are fixedly connected to the end of the handle are provided in the countersunk holes.

5. The manual grinding device for assisting the detection of micro-deformation on the surface of an aluminum plate according to claim 1, 2 or 3, characterized in that: The clamping device comprises fixing clamps arranged on both sides of the upper end surface of the fixing plate, and the ends of the sand screen are connected to the fixing clamps.

6. The manual grinding device for assisting the detection of micro-deformation on the surface of an aluminum plate according to claim 1, characterized in that: The thickness of the fixing plate is 2-4 mm; the thickness of the sponge layer is 15-25 mm; and the thickness of the bottom plate is 2-4 mm.

7. The manual grinding device for assisting the detection of micro-deformation on the surface of an aluminum plate according to claim 1 or 6, characterized in that: The sand screen is a 500-mesh sand screen.

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