Tin bump grinding device

Abstract

The utility model relates to a tin bump grinding device which comprises a box body. An upper cover is hinged to the rear side of the top surface of the box body; at least one group of electric grinding cutters are arranged on the front side in the box body; a dust collector is arranged in the box body on the rear side of the electric grinding cutter; a trapezoidal box is arranged between the electric grinding cutter and the dust collector; an opening of the trapezoidal box faces one side of the electric grinding cutter, and the other side of the trapezoidal box is communicated with the dust collector through a first hose; polishing and fixing mechanisms matched with the electric grinding tools in number and position are arranged on the side, facing the electric grinding tools, of the upper cover and used for containing assemblies to be subjected to tin bump removal. The utility model has the advantages that the production efficiency is high, the manpower is saved, the cut chippings cannot be adhered to the surface of the component, the appearance of the product is not influenced, and the short circuit caused by the chippings is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic component manufacturing, in particular to a tin nodule grinding device. Background Art

[0002] When manufacturing ceramic capacitor components, it is usually necessary to weld multilayer ceramic capacitors to metal sheets with tin electroplated on the surface. Currently, the reflow process is generally used for welding. However, since the peak temperature in the reflow furnace is much higher than the melting point of tin, the tin layer electroplated on the metal sheet is easily melted during the flow soldering process to form tin nodules, which need to be removed to ensure a smooth product surface.

[0003] At present, the tin nodules are usually removed manually, and the operator needs to use a utility knife to manually handle them. However, this method has the problems of low efficiency and labor consumption. At the same time, the tin debris generated during the removal process is easy to adhere to the surface of the component, which not only affects the appearance of the product, but also may cause the risk of short circuit. Utility Model Content

[0004] To this end, the utility model provides a tin nodule grinding device, which mainly solves the technical problems of low efficiency, labor consumption, affecting product appearance and possible short circuit risk caused by manual operation of removing tin nodules when manufacturing ceramic capacitor components in the existing technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tin nodule grinding device comprises a box body; an upper cover is hingedly connected to the rear side of the top surface of the box body; at least one group of electric grinding tools are arranged on the front side of the box body; a vacuum cleaner is arranged in the box body at the rear side of the electric grinding tool; a trapezoidal box is arranged between the electric grinding tool and the vacuum cleaner; the trapezoidal box has an opening facing one side of the electric grinding tool and the other side is connected to the vacuum cleaner through a first hose; a grinding and fixing mechanism that is adapted to the number and position of the electric grinding tool is arranged on the upper cover facing the electric grinding tool, and is used for placing the tin nodule components to be removed.

[0007] Preferably, the tool edge of the electric grinding tool is a cross-shaped edge.

[0008] Preferably, a lifting device is provided between the electric grinding tool and the box body, for driving the lifting and lowering of the electric grinding tool.

[0009] Optionally, the lifting device is a lifting cylinder vertically arranged on the bottom wall of the box; and the electric grinding tool is arranged on the top end of the telescopic arm of the lifting cylinder.

[0010] Preferably, the box above the electric grinding tool is provided with a shielding plate; the shielding plate is provided with working windows adapted to the number and position of the electric grinding tool, and the tool edge of the electric grinding tool can extend out of the working window.

[0011] Preferably, a vibration-damping rubber strip is provided on the side of the upper cover on the outer periphery of the grinding and fixing mechanism facing the electric grinding tool.

[0012] Optionally, the grinding and fixing mechanism includes a pair of clamping strips; the pair of clamping strips are horizontally or vertically arranged on the side of the upper cover facing the electric grinding tool, and the tin nodule component to be removed can be clamped between the pair of clamping strips.

[0013] Preferably, a plurality of flexible spacer strips are provided between a pair of the clamping strips.

[0014] Preferably, it also includes a dust box placed in the box body; the dust box is connected to the vacuum cleaner through a second hose.

[0015] The utility model has at least the following beneficial effects:

[0016] The box body is provided with an upper cover hingedly connected to the box body, an electric grinding tool is arranged in the box body, a vacuum cleaner is arranged in the box body at the rear side of the electric grinding tool, a trapezoidal box is arranged between the electric grinding tool and the vacuum cleaner, the trapezoidal box opening faces one side of the electric grinding tool, and the other side is connected to the vacuum cleaner through a first hose, and a grinding and fixing mechanism adapted to the number and position of the electric grinding tool is arranged on the upper cover facing the electric grinding tool, which is used to place the tin nodule component to be removed. The tin nodule component to be removed is placed and fixed on the upper cover through the grinding and fixing mechanism, and the upper cover is closed, so that the tin nodule component to be removed contacts the electric grinding tool, and the electric grinding tool cuts and removes the tin nodule, and the cutting and removal efficiency is high, saving manpower; at the same time, the cut debris is sucked away by the vacuum cleaner through the trapezoidal box, and will not adhere to the surface of the component, so as not to affect the appearance of the product, and at the same time avoid short circuit caused by debris.

[0017] It can be seen that the tin nodule grinding device of the utility model has the advantages of high production efficiency, saving manpower, and the cutting debris will not adhere to the surface of the component and will not affect the appearance of the product, while avoiding short circuits caused by debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly explain the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the present invention. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other drawings can be derived from the provided drawings without creative work.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0020] Figure 1 This is a schematic structural diagram of a tin nodule grinding device of the utility model;

[0021] Figure 2 This is a schematic structural diagram of an electric grinding tool of a tin nodule grinding device of the utility model;

[0022] Description of reference numerals:

[0023] 1. Box body; 2. Upper cover; 3. Fixed block; 4. Connecting rod; 5. Power switch; 6. Vacuum cleaner switch; 7. Grinding tool switch; 8. Electric grinding tool; 9. Lifting device; 10. Tool blade; 11. Working window; 12. Fixed rod; 13. Trapezoidal box; 14. Vacuum cleaner; 15. First hose; 16. Support base; 17. Dust collection box; 18. Second hose; 19. Vibration-damping rubber strip; 20. Grinding fixing mechanism; 21. Card strip; 22. Flexible spacer. DETAILED DESCRIPTION

[0024] The present application is further described below in detail through specific embodiments in conjunction with the accompanying drawings.

[0025] In the description of this application: unless otherwise specified, the meaning of "plurality" is two or more. The terms "first", "second", "third", etc. in this application are intended to distinguish the objects referred to, and do not have special meanings in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0026] The terms such as "upper", "lower", "left", "right", "middle", etc. used in this application are usually used to facilitate intuitive understanding by comparing with the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product. Without departing from the technical concept disclosed in this application, changes in these relative positional relationships should also be regarded as the scope of this application.

[0027] The utility model is a tin nodule grinding device, such as Figure 1 , Figure 2As shown, a box body 1 is provided, and an upper cover 2 is hingedly connected to the rear side of the top surface of the box body 1. The hinged connection is a prior art familiar to those skilled in the art. In this embodiment, a fixed block 3 is fixedly provided on the box body 1, and a connecting rod 4 can be rotatably connected to the fixed block 3, so that the bottom end of the upper cover 2 is connected to the connecting rod 4, and the hinged connection can be realized. At least one group of electric grinding tools 8 is provided on the front side of the box body 1. Three groups are provided in the embodiment of the present application. The electric grinding tools 8 can be selected from commercially available electric grinding tools, which are specifically composed of a motor and a grinding tool, and the grinding tool is installed on the output shaft of the motor. A vacuum cleaner 14 is provided in the box body 1 on the rear side of the electric grinding tool 8. Specifically, a support base 16 can be fixedly provided in the box body 1, and the vacuum cleaner 14 is fixed on the support base 16. A trapezoidal box 13 is provided between the electric grinding tool 8 and the vacuum cleaner 14, and the trapezoidal box 13 opens to one side of the electric grinding tool 8, and the other side is connected to the vacuum cleaner 14 through a first hose 15. The upper cover 2 is provided with a grinding and fixing mechanism 20 that matches the number and position of the electric grinding tool 8 on the side facing the electric grinding tool 8, and is used to place the tin nodule component to be removed. The tin nodule component to be removed is placed and fixed on the upper cover 2 through the grinding and fixing mechanism 20. When the upper cover 2 is closed, the tin nodule component to be removed is in contact with the electric grinding tool 8. Under the cutting of the electric grinding tool 8, the tin nodule is removed, and the cut debris is sucked away by the vacuum cleaner 14 through the trapezoidal box 13, and will not adhere to the surface of the component, which will not affect the appearance of the product, and at the same time avoid short circuits caused by debris.

[0028] Preferably, in order to improve the cutting quality, the tool edge 10 of the electric grinding tool 8 is a cross-shaped tool edge.

[0029] Preferably, a lifting device 9 is provided between the electric grinding tool 8 and the box body 1 for driving the lifting of the electric grinding tool 8. By controlling the lifting of the electric grinding tool 8 by the lifting device 9, the tin nodules can be better removed while protecting the components from excessive cutting.

[0030] Optionally, the lifting device 9 of the embodiment of the present application is a lifting cylinder vertically arranged on the bottom wall of the box body 1, and the electric grinding tool 8 is arranged on the top of the telescopic arm of the lifting cylinder. Other lifting mechanisms can also be selected, which are easily conceived and implemented by technical personnel in this field.

[0031] Preferably, in order to protect the components from being over-cut and improve the cutting quality, a baffle plate is provided on the box body 1 above the electric grinding tool 8. The baffle plate can be placed on the top surface of the box body 1. In order to support the suspended portion of the rear side of the baffle plate, a fixing rod 12 can be fixed on the top surface of the box body 1 to support the rear side of the baffle plate. The baffle plate is provided with working windows 11 that are adapted to the number and position of the electric grinding tool 8, and the tool edge 10 of the electric grinding tool 8 can extend out of the working window 11.

[0032] Preferably, in order to reduce the vibration of the upper cover 2 during cutting, a vibration-damping rubber strip 19 is provided on the side of the upper cover 2 at the outer periphery of the grinding fixing mechanism 20 facing the electric grinding tool 8 .

[0033] Optionally, the embodiment of the present application provides a preferred method of the grinding and fixing mechanism 20, which includes a pair of clamping strips 21, and the pair of clamping strips 21 are horizontally or vertically arranged on the side of the upper cover 2 facing the electric grinding tool 8, and the tin nodule component to be removed can be clamped between the pair of clamping strips 21.

[0034] Preferably, in order to protect the components from being damaged, a plurality of flexible spacer strips 22 are provided on the upper cover 2 between a pair of clamping strips 21 , so that the components to be removed from the tin nodules and the upper cover 2 are protected by the flexible spacer strips 22 .

[0035] Preferably, in order to facilitate the dumping and removal of tin chips, a dust box 17 is also included and placed in the housing 1. The dust box 17 is connected to the vacuum cleaner 14 through a second hose 18. The tin chips sucked up by the vacuum cleaner 14 are collected in the dust box 17. This is also a prior art well known to technicians in the industry and is widely used in household vacuum cleaners, which will not be elaborated here.

[0036] In actual production applications, a power switch 5 is also provided on the front side of the box body 1 to control the switching of all power supplies of the device of the present application. At the same time, a vacuum cleaner switch 6 is also provided to control the switching of the vacuum cleaner 14, and a grinding tool switch 7 is provided to control the switching of the electric grinding tool 8. The number of grinding tool switches 7 is consistent with the number of electric grinding tools 8, and they correspond one to one. Each grinding tool switch 7 controls the switching of the corresponding electric grinding tool 8.

[0037] The above is a relatively specific and detailed description of the present application through general description and specific embodiments. It should be understood that, based on the technical concept of the present application, several conventional adjustments or further innovations can be made to these specific embodiments; however, as long as they do not deviate from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the scope of protection of the claims of the present application.

Claims

1. A tin nodule grinding device, characterized in that: The invention comprises a box body (1); an upper cover (2) is hingedly connected to the rear side of the top surface of the box body (1); at least one group of electric grinding tools (8) is arranged on the front side of the box body (1); a vacuum cleaner (14) is arranged in the box body (1) at the rear side of the electric grinding tools (8); a trapezoidal box (13) is arranged between the electric grinding tools (8) and the vacuum cleaner (14); the trapezoidal box (13) has an opening facing one side of the electric grinding tools (8), and the other side is connected to the vacuum cleaner (14) through a first hose (15); a grinding and fixing mechanism (20) which is adapted to the number and position of the electric grinding tools (8) is arranged on the side of the upper cover (2) facing the electric grinding tools (8), and is used for placing the tin nodule components to be removed.

2. A tin nodule grinding device according to claim 1, characterized in that: The tool edge (10) of the electric grinding tool (8) is a cross-shaped edge.

3. The tin nodule grinding device according to claim 1, characterized in that: A lifting device (9) is provided between the electric grinding tool (8) and the box body (1) for driving the lifting of the electric grinding tool (8).

4. A tin nodule grinding device according to claim 3, characterized in that: The lifting device (9) is a lifting cylinder vertically arranged on the bottom wall of the box body (1); the electric grinding tool (8) is arranged on the top end of the telescopic arm of the lifting cylinder.

5. The tin nodule grinding device according to claim 1, characterized in that: The box (1) above the electric grinding tool (8) is provided with a shielding plate; the shielding plate is provided with working windows (11) whose number and position are adapted to the electric grinding tool (8), and the tool edge (10) of the electric grinding tool (8) can extend out of the working window (11).

6. The tin nodule grinding device according to claim 5, characterized in that: A vibration-damping rubber strip (19) is provided on the side of the upper cover (2) on the outer periphery of the grinding and fixing mechanism (20) facing the electric grinding tool (8).

7. The tin nodule grinding device according to claim 1, characterized in that: The grinding and fixing mechanism (20) comprises a pair of clamping strips (21); the pair of clamping strips (21) are arranged horizontally or vertically on the side of the upper cover (2) facing the electric grinding tool (8), and the tin nodule component to be removed can be clamped between the pair of clamping strips (21).

8. The tin nodule grinding device according to claim 7, characterized in that: A plurality of flexible spacer strips (22) are arranged between a pair of the clamping strips (21).

9. The tin nodule grinding device according to claim 1, characterized in that: It also comprises a dust collecting box (17) placed in the box body (1); the dust collecting box (17) is connected to the dust collector (14) via a second hose (18).

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