An automobile spare part polishing device

Abstract

The application relates to the field of automobile part polishing, in particular to an automobile part polishing device which comprises a polishing handle and an air bag, the polishing handle is internally provided with a driving assembly for driving the air bag to rotate and an inflation assembly for inflating the air bag, and the outer side of the air bag is provided with a polishing belt for polishing; the air bag comprises multiple annular warehouses in the middle part, connecting warehouses at two ends and an air filling pipe penetrating through the middle part, the air filling pipe in the connecting warehouses at the two ends is provided with a first air filling hole, each annular warehouse is provided with three fan-shaped warehouses, and the air filling pipe in each annular warehouse is uniformly provided with three second air filling holes which are in communication with the fan-shaped warehouses; and the polishing belt is composed of polishing layers and adhesive layers which are arranged at intervals. In the application, when the inner wall of the automobile pipe type part is polished, the air bag after expansion supports the polishing belt to polish the pipe wall, the polishing device is suitable for various non-standard pipe type parts within a certain diameter range, and the polishing efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of automotive parts polishing technology, and more particularly to an automotive parts polishing device. Background Technology

[0002] Many automotive parts are non-standard. When grinding the inner walls of some tubular non-standard parts, some existing inner wall grinding equipment cannot be matched with the diameter of the non-standard parts. It is necessary to customize related grinding components, which not only increases the cost of enterprises, but also increases the production cycle and affects the production efficiency of automotive parts. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a grinding device for automotive parts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A grinding device for automotive parts includes a grinding handle and an airbag. The grinding handle is provided with a drive component for driving the airbag to rotate and an inflation component for inflating the airbag. A grinding belt for grinding is provided on the outside of the airbag.

[0006] The airbag includes multiple annular chambers in the middle, connecting chambers at both ends, and an air filling pipe that runs through the middle. The air filling pipe located in the connecting chambers at both ends is provided with a first air filling hole. Each annular chamber is provided with three fan-shaped chambers, and the air filling pipe located in each annular chamber is provided with three second air filling holes that are evenly distributed and connected to the fan-shaped chambers.

[0007] The grinding belt is annular, and each grinding belt is attached to the outside of each annular compartment. The grinding belt is composed of a grinding layer and an adhesive layer that are spaced apart. The grinding layer can perform grinding, and the adhesive layer can stick to the grinding powder.

[0008] Preferably, the drive assembly includes a drive motor disposed inside the grinding handle and a motor switch mounted on the outside of the grinding handle. The output end of the drive motor is equipped with a rotating shaft, which has a hollow structure, and one end of the rotating shaft extending out of the grinding handle is fixedly connected to a connecting block at one end of the airbag.

[0009] Preferably, the inflation assembly includes an air pump disposed inside the grinding handle, the air pump being connected to an air nozzle at the lower part of the inflation tube via an air pipe, and the inflation tube being rotatably mounted on a rotating shaft.

[0010] Preferably, the two ends of the inflation tube are rotatably mounted on a rotating shaft through bearing seals, and an air inlet groove is provided on the rotating shaft located inside the inflation tube. The inflation pump is turned on by the air pump switch, and the inflation pump delivers gas to the inflation tube through the air pipe and the air nozzle. The inflation tube enters the rotating shaft through the air inlet groove on the rotating shaft, and then the rotating shaft delivers the gas to the airbag to inflate the airbag.

[0011] Preferably, a storage battery is also provided inside the handle portion of the grinding handle, which supplies power to the drive motor and the air pump, and an air pump switch is installed on the outside of the grinding handle located at the air pump.

[0012] Preferably, one end of the air filling pipe inside the airbag is connected to the rotating shaft via a connecting block, and the other end is connected to the exhaust pipe via a connecting block. An exhaust valve is installed on the exhaust pipe. The air filling pipe is a rigid pipe and is connected and fixed to the rotating shaft and the exhaust pipe.

[0013] Preferably, the polishing layer on the polishing belt protrudes outward by 3-4mm compared to the adhesive layer. The protruding polishing layer polishes the inner wall of the tubular parts, while the adhesive layer collects and adheres to the polishing powder, preventing the powder from accumulating and affecting the smoothness of the inner wall.

[0014] Preferably, the annular compartments within the airbag are not interconnected, and the three sector compartments within each annular compartment are also not interconnected. By setting up unconnected annular compartments and unconnected sector compartments, not only can the support force of the airbag after inflation be improved, but also the overall use will not be affected if the airbag is damaged in a certain part.

[0015] When polishing the inner wall of a tubular automotive component, a loose airbag is passed through the interior of the component to be polished.

[0016] Then, the airbag is inflated. The air pump is turned on by the air pump switch. The air pump delivers gas to the inflation tube through the air tube and the air nozzle. The inflation tube enters the rotating shaft through the air inlet slot on the rotating shaft, and then the rotating shaft delivers gas to the airbag to inflate it.

[0017] When the airbag is inflated, gas is transported in the gas filling pipe. The connecting chambers at both ends are inflated through the first gas filling hole, and the fan-shaped chambers in each annular chamber in the middle are inflated through the second gas filling hole, so that the airbag expands and bulges. The grinding strip on the outside of the airbag is pressed and adhered to the inner wall of the tubular parts to be ground.

[0018] When grinding the inner wall of tubular parts, pressing the motor switch activates the drive motor, which, via a rotating shaft and air hose, rotates the entire airbag. The protruding grinding layer on the grinding belt on the outer wall of the airbag grinds the inner wall of the tubular part. An adhesive layer collects and adheres to the grinding dust, preventing dust accumulation and ensuring a smooth inner wall finish. The annular and fan-shaped chambers enhance the airbag's support for the grinding belt, ensuring it remains firmly attached to the inner wall of the tubular part during grinding, thus improving efficiency. Because the airbag can inflate, it can grind the inner walls of tubular parts within a certain diameter range.

[0019] After polishing, the airbag can be quickly vented by opening the exhaust valve on the exhaust pipe, and then the tubular parts can be easily removed. The airbag will not scratch the inner wall again after it is relaxed.

[0020] The beneficial effects of this invention are as follows:

[0021] In this invention, when grinding the inner wall of automotive tubular parts, the grinding belt is supported by an expanded airbag to grind the tubular wall. This method is not only applicable to various non-standard tubular parts within a certain diameter range, but also has high grinding efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the internal structure of an automotive parts grinding device proposed in this invention;

[0023] Figure 2 This is a schematic diagram of the external structure of an automotive parts grinding device proposed in this invention;

[0024] Figure 3 This is a schematic diagram of the airbag structure of an automotive parts grinding device proposed in this invention;

[0025] Figure 4 This is a schematic diagram of the air inlet pipe of an automotive parts grinding device proposed in this invention;

[0026] Figure 5 This is a schematic diagram of the air filling pipe of an automotive parts grinding device proposed in this invention;

[0027] Figure 6 This is a schematic diagram of the grinding belt of an automotive parts grinding device proposed in this invention;

[0028] Figure 7 This is a schematic diagram of the annular chamber of an automotive parts grinding device proposed in this invention.

[0029] In the diagram: 1 Grinding handle, 2 Drive motor, 21 Motor switch, 3 Rotary shaft, 31 Air inlet slot, 4 Airbag, 41 Annular chamber, 42 Air filling pipe, 43 Connecting chamber, 411 Fan-shaped chamber, 421 First air filling hole, 422 Second air filling hole, 5 Grinding belt, 51 Grinding layer, 52 Adhesive layer, 6 Air pump, 61 Air pump switch, 7 Battery, 8 Air filling pipe, 81 Air nozzle, 9 Exhaust pipe, 10 Exhaust valve. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] Reference Figure 1-7 A grinding device for automotive parts includes a grinding handle 1 and an airbag 4. The grinding handle 1 is provided with a drive component for driving the airbag 4 to rotate and an inflation component for inflating the airbag 4. A grinding belt 5 for grinding is provided on the outside of the airbag 4.

[0034] The airbag 4 includes multiple annular chambers 41 in the middle, connecting chambers 43 at both ends, and an air filling pipe 42 passing through the middle. The air filling pipe 42 located in the connecting chambers 43 at both ends is provided with a first air filling hole 421. Each annular chamber 41 is provided with three fan-shaped chambers 411, and three second air filling holes 422 corresponding to and communicating with the fan-shaped chambers 411 are evenly distributed on the air filling pipe 42 located in each annular chamber 41. The annular chambers 41 in the airbag 4 are not interconnected, and the three fan-shaped chambers 411 in each annular chamber 41 are also not interconnected.

[0035] The grinding belt 5 is an annular belt, and each grinding belt 5 is attached to the outer side of each annular compartment 41. The grinding belt 5 is composed of a grinding layer 51 and an adhesive layer 52 arranged at intervals. The grinding layer 51 on the grinding belt 5 protrudes outward by 3-4mm compared to the adhesive layer 52. The grinding layer 51 can be used for grinding, and the adhesive layer 52 can be used to stick grinding powder.

[0036] The drive assembly includes a drive motor 2 installed inside the grinding handle 1 and a motor switch 21 installed on the outside of the grinding handle 1. The output end of the drive motor 2 is equipped with a rotating shaft 3, which is a hollow structure. One end of the air filling pipe 42 inside the airbag 4 is connected to the rotating shaft 3 through a connecting block, and the other end is connected to the exhaust pipe 9 through a connecting block. An exhaust valve 10 is installed on the exhaust pipe 9. The air filling pipe 21 is a rigid pipe and is connected and fixed to the rotating shaft 3 and the exhaust pipe 9.

[0037] The inflation assembly includes an air pump 6 installed inside the grinding handle 1. The air pump 6 is connected to the air nozzle 81 at the bottom of the inflation tube 8 via an air pipe. The inflation tube 8 is rotatably mounted on the rotating shaft 3. Both ends of the inflation tube 8 are rotatably mounted on the rotating shaft 3 through bearing seals. An air inlet groove 31 is provided on the rotating shaft 3 located inside the inflation tube 8. The air pump 6 can deliver gas to the rotating shaft 3 through the inflation tube 8, and then the rotating shaft 3 inflates the airbag 4.

[0038] Furthermore, a storage battery 7 is installed inside the handle of the polishing handle 1. The storage battery 7 supplies power to the drive motor 2 and the air pump 6, and an air pump switch 61 is installed on the outside of the polishing handle 1 located at the air pump 6.

[0039] In this embodiment, when grinding the inner wall of the automotive tubular component, the loose airbag 4 is passed through the interior of the tubular component to be ground.

[0040] Then, the airbag 4 is inflated. The air pump 6 is turned on by the air pump switch 61. The air pump 6 delivers gas to the inflation tube 8 through the air pipe and the air nozzle 81. The inflation tube 8 enters the rotating shaft 3 through the air inlet groove 31 on the rotating shaft 3, and then the rotating shaft 3 delivers gas to the airbag 4 to inflate the airbag 4.

[0041] When the airbag 4 is inflated, gas is transported in the gas filling pipe 42, and gas is injected into the connecting chambers 43 at both ends through the first gas filling hole 421, and gas is injected into the fan-shaped chambers 43 in each annular chamber 41 in the middle through the second gas filling hole 422, so that the airbag 4 expands and bulges, and the grinding belt 5 on the outside of the airbag 4 is pressed and adhered to the inner wall of the tubular parts to be ground.

[0042] The use of non-interconnected annular compartments 41 and non-interconnected fan-shaped compartments 43 not only enhances the support force of the airbag 4 after inflation, but also ensures that the overall use is not affected if the airbag 4 is damaged in a certain place.

[0043] When grinding the inner wall of a tubular component, pressing the motor switch 21 causes the drive motor 2 to rotate via the air hose 42 through the rotating shaft 3, rotating the entire airbag 4. The protruding grinding layer 51 on the grinding belt 5 on the outer wall of the airbag 4 grinds the inner wall of the tubular component. The adhesive layer 52 collects and adheres to the grinding dust, preventing dust accumulation from affecting the smoothness of the inner wall. The annular chamber 41 and the fan-shaped chamber 43 enhance the support of the airbag 4 for the grinding belt 5, ensuring that the grinding belt 5 remains in close contact with the inner wall of the tubular component during grinding, thus improving grinding efficiency. Because the airbag 4 can expand, it can grind the inner wall of tubular components within a certain diameter range.

[0044] Furthermore, when the polishing belt 5 is damaged, the damaged polishing belt 5 can be peeled off from the airbag 4 and a new polishing belt 5 can be attached.

[0045] After polishing, the airbag 4 can be quickly vented by opening the exhaust valve 10 on the exhaust pipe 9, and then the tubular parts can be easily removed. The airbag 4 will not scratch the inner wall again after being relaxed.

[0046] In this invention, when grinding the inner wall of automotive tubular parts, the grinding belt 5 is supported by the expanded airbag 4 to grind the tube wall. This method is not only applicable to various non-standard tubular parts within a certain diameter range, but also has high grinding efficiency.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A grinding device for automotive parts, comprising a grinding handle (1) and an airbag (4), characterized in that, The grinding handle (1) is provided with a drive component for driving the airbag (4) to rotate and an inflation component for inflating the airbag (4). A grinding belt (5) for grinding is provided on the outside of the airbag (4). The airbag (4) includes multiple annular chambers (41) in the middle, connecting chambers (43) at both ends, and an air filling pipe (42) that runs through the middle. The air filling pipe (42) located in the connecting chambers (43) at both ends is provided with a first air filling hole (421). Each annular chamber (41) is provided with three fan-shaped chambers (411), and the air filling pipe (42) located in each annular chamber (41) is provided with three second air filling holes (422) that are connected to the fan-shaped chambers (411) respectively. The annular compartments (41) within the airbag (4) are not interconnected, and the three sector compartments (411) within each annular compartment (41) are also not interconnected. The polishing belt (5) is an annular belt, and each polishing belt (5) is attached to the outside of each annular compartment (41). The polishing belt (5) is composed of a polishing layer (51) and an adhesive layer (52) arranged at intervals.

2. The automotive parts grinding device according to claim 1, characterized in that, The drive assembly includes a drive motor (2) installed inside the grinding handle (1) and a motor switch (21) installed on the outside of the grinding handle (1). The output end of the drive motor (2) is equipped with a rotating shaft (3). The rotating shaft (3) has a hollow structure, and one end of the rotating shaft (3) extending out of the grinding handle (1) is fixedly connected to the connecting block at one end of the airbag (4).

3. The automotive parts grinding device according to claim 2, characterized in that, The inflation assembly includes an air pump (6) installed in the grinding handle (1). The air pump (6) is connected to the air nozzle (81) at the bottom of the inflation tube (8) through an air pipe, and the inflation tube (8) is rotatably mounted on the rotating shaft (3).

4. The automotive parts grinding device according to claim 3, characterized in that, The two ends of the inflation tube (8) are rotatably mounted on the rotating shaft (3) through bearing seals, and an air inlet groove (31) is provided on the rotating shaft (3) located inside the inflation tube (8).

5. The automotive parts grinding device according to claim 3, characterized in that, The grinding handle (1) is also equipped with a storage battery (7) inside the handle part. The storage battery (7) supplies power to the drive motor (2) and the air pump (6). An air pump switch (61) is installed on the outside of the grinding handle (1) located at the air pump (6).

6. The automotive parts grinding device according to claim 4, characterized in that, One end of the air filling pipe (42) inside the airbag (4) is connected to the rotating shaft (3) through a connecting block, and the other end is connected to the exhaust pipe (9) through a connecting block. An exhaust valve (10) is installed on the exhaust pipe (9).

7. The automotive parts grinding device according to claim 1, characterized in that, The polishing layer (51) on the polishing belt (5) protrudes outward by 3-4 mm compared to the adhesive layer (52).

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