Spindle-free built-in rifling compressed air power polishing device

Abstract

The application discloses a built-in reverse rifling compressed air power polishing device without a main shaft and belongs to the field of mechanical polishing. The built-in reverse rifling compressed air power polishing device without a main shaft comprises a device main body, a cavity is formed in one side of the device main body, a machining part is arranged in the cavity, a pair of threaded grooves are formed in the outer wall of the device main body and are in communication with the cavity, a fixing screw is threadedly connected in the threaded grooves, a slot is formed in the other side of the device main body, an air pipe joint is fixedly arranged in the slot and extends to the outside of the device main body, an air pipe body is arranged in one end of the air pipe joint, a polishing rotor is arranged in the machining part, reverse rifling grooves are formed in the surface of the polishing rotor and are helical, and the built-in reverse rifling compressed air power polishing device without a main shaft can realize the purpose of polishing parts with unlimited length without being limited by the connection of the main shaft.

Description

Technical Field

[0001] This invention relates to the field of machining and polishing, and more specifically, to a spindleless, internally rifling compressed air-powered polishing device. Background Technology

[0002] Polishing is a processing method that uses mechanical, chemical, or electrochemical processes to reduce the surface roughness of a workpiece, thereby obtaining a bright and smooth surface. It involves using polishing tools and abrasive particles or other polishing media to refine the surface of a workpiece. Polishing does not improve the dimensional or geometric accuracy of a workpiece; rather, it aims to achieve a smooth surface or a mirror-like finish, and is sometimes used to eliminate shine (matte finish). Polishing wheels are typically used as the polishing tool. Polishing wheels are generally made of multiple layers of canvas, felt, or leather, clamped on both sides by metal discs, and their rims are coated with a polishing compound consisting of a uniform mixture of micro-powdered abrasive particles and grease.

[0003] Based on the above, the inventors have discovered that the power source of traditional polishing equipment is transmitted by a spindle. Due to the low transmission range of the spindle drive, the extension and retraction length of the spindle may be limited, thus restricting the polishing length. After prolonged use, this makes it impossible to polish workpieces of different lengths. In addition, most traditional polishing devices do not have internal protective and anti-collision structures, which can lead to damage to the workpieces and polishing components during processing. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a spindle-less, internally rifling compressed air-powered polishing device, aiming to achieve a more valuable invention. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a spindleless built-in rifling compressed air power polishing device, which can achieve the purpose of polishing parts of unlimited length without being limited by the spindle connection.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A spindleless, internally mounted rifling compressed air-powered polishing device includes a main body. A cavity is formed on one side of the main body, into which a machining part is inserted. A pair of threaded grooves are formed on the outer wall of the main body, with one end of each groove communicating with the interior of the cavity. A fixing screw is threadedly connected to the interior of each groove. A slot is formed on the other side of the main body, into which an air pipe connector is fixedly installed. One end of the air pipe connector extends to the outside of the main body, and an air pipe body is inserted into the other end. A polishing rotor is inserted into the machining part. Rifling grooves are formed on the surface of the polishing rotor, and these grooves are spiral-shaped. A pair of filler-sealed polishing grooves are formed on the outer side of the polishing rotor, and these grooves are filled with filler material. Bearing fasteners are fixedly installed at both ends of the polishing rotor, and air inlet channels are provided at both ends. Open bearings are engaged on the outer sides of both bearing fasteners. A connecting block is inserted into the machining part, and a push rod is fixedly installed on the other side of the connecting block.

[0009] Furthermore, a protective anti-pressure damage pad is fixedly installed at the open end of the threaded groove, and the protective anti-pressure damage pad is in close contact with the outer wall of the machined part, and one end of the fixing screw is in close contact with the outer wall of the protective anti-pressure damage pad.

[0010] Furthermore, one end of the trachea body is fixedly connected to one end of the trachea connector, and an air compressor is fixedly connected to one end of the trachea body.

[0011] Furthermore, a rubber buffer pad is fixedly installed on one side of the inner wall of the cavity, and one side of the rubber buffer pad is in contact with one end of the processed part. The position of the central hole of the rubber buffer pad is symmetrical to the position of the slot.

[0012] Furthermore, the spacing between the rifling groove spirals is the same, and the positions of the pair of packing seal polishing grooves are symmetrical to each other, while the positions of the rifling grooves and the packing seal polishing grooves are parallel to each other.

[0013] Furthermore, the two air intake channels are located at both ends of the polishing rotor and are symmetrical to each other, with the sides of the two air intake channels that are far apart from each other being open.

[0014] Furthermore, an annular groove is provided on one side of the connecting block, and one side of the connecting block is in contact with one side of one of the open bearings through the annular groove.

[0015] Furthermore, one end of the push rod extends to the outside of the processed part, and both the connecting block and the push rod have gas channels inside, and the two gas channels are interconnected.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of this invention are:

[0018] (1) This scheme, by setting up a main body of the device, a polishing rotor, an air intake channel, and an open bearing, after the device is put into use, by machining a filler-sealed polishing groove parallel to the rifling groove in the empty space avoiding the rifling groove, and by implanting different fillers such as nylon bristles or wool, bristle bristles, degreased cotton, cork, etc. into the filler-sealed polishing groove, and then applying polishing agents such as diamond paste or silicon carbide paste mud, etc., the bearing fastening positions at both ends of the polishing rotor are provided with air intake channels to prevent the open bearing from blocking the gas. By inserting the processed parts into the inside of the main body of the device, and at the same time... The air pipe body is connected to the air pipe connector, and the workpiece is fixed inside the main body of the device by a fixing screw. The rear end of the air pipe body is connected to a compressed air tank or air compressor to provide high-pressure gas as a power source. Inside the workpiece, the rifling grooves of the polishing rotor move forward and spin under the action of high-pressure gas. This drives the filler and polishing agent such as diamond paste or silicon carbide paste in the sealed polishing tank to polish the inner wall of the workpiece under the action of centrifugal force. This device can effectively increase the polishing length of the workpiece and avoid the phenomenon of insufficient spindle length.

[0019] (2) In this solution, by setting threaded grooves, fixing screws, protective anti-pressure pads and rubber buffer pads, the rubber buffer pads can be used to stop the polishing rotor from rotating when it touches the rubber buffer pads and push rods during operation. At the same time, the rubber buffer pads can prevent the entire polishing assembly from being damaged by hard contact under the action of airflow. The fixing screws can lock the processed parts into the interior of the device body. When locking, the protective anti-pressure pads are used to prevent the fixing screws from damaging the processed parts. This structure can effectively protect the polishing assembly in the device and the processed parts.

[0020] (3) In this scheme, by setting up a connecting block, a push rod and a gas channel, the direction and position of the polishing rotor can be controlled by the push rod. At the same time, the annular groove and gas channel opened on the connecting block and the push rod ensure that the connecting block only contacts the outer ring of the open bearing, and the gas channel can effectively discharge the working airflow, thereby improving the stability of the device during use. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a frontal cross-sectional view of the structure of the present invention;

[0023] Figure 3 This is a three-dimensional schematic diagram of the polishing rotor structure of the present invention;

[0024] Figure 4 This is a schematic side view sectional view of a partial structure of the present invention;

[0025] Figure 5 This is a schematic diagram of a partial structural planar cross-section of the present invention;

[0026] Figure 6 For the present invention Figure 2 Enlarged schematic diagram of a local structure at point A;

[0027] Figure 7 This is a three-dimensional schematic diagram of the push rod structure of the present invention.

[0028] Explanation of the labels in the diagram:

[0029] 1. Main body of the device; 2. Cavity; 3. Machined parts; 4. Threaded groove; 5. Fixing screw; 6. Protective anti-pressure pad; 7. Slot; 8. Air pipe connector; 9. Air pipe body; 10. Rubber buffer pad; 11. Polished rotor; 12. Rifling groove; 13. Sealed polishing groove for packing; 14. Bearing fastener; 15. Air inlet channel; 16. Open bearing; 17. Connecting block; 18. Push rod; 19. Gas channel. 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Example:

[0032] Please see Figure 1-7A spindleless, internally mounted, rifling-driven compressed air polishing device includes a main body 1. A cavity 2 is formed on one side of the main body 1, and a workpiece 3 is inserted into the cavity 2. A pair of threaded grooves 4 are formed on the outer wall of the main body 1, with one end of each groove communicating with the interior of the cavity 2. A fixing screw 5 is threadedly connected to the interior of each groove 4. A slot 7 is formed on the other side of the main body 1, and an air pipe connector 8 is fixedly installed inside the slot 7. One end of the air pipe connector 8 extends to the outside of the main body 1, and an air pipe body 9 is inserted into the other end of the air pipe connector 8. A polishing rotor 11 is inserted and installed inside the machining part 3. Three rifling grooves 12 are opened on the surface of the polishing rotor 11. A pair of filler-sealed polishing grooves 13 are opened on the outside of the polishing rotor 11. The filler-sealed polishing grooves 13 are filled with filler material. Bearing fasteners 14 are fixedly installed at both ends of the polishing rotor 11. Air intake channels 15 are provided at both ends of the polishing rotor 11. Open bearings 16 are engaged and installed on the outside of the two bearing fasteners 14. A connecting block 17 is inserted and installed inside the machining part 3. A push rod 18 is fixedly installed on the other side of the connecting block 17.

[0033] See Figure 2 , 4 A protective anti-pressure damage gasket 6 is fixedly installed at the open end of the threaded groove 4, and the protective anti-pressure damage gasket 6 is tightly fitted to the outer wall of the processed part 3. One end of the fixing screw 5 is fitted to the outer wall of the protective anti-pressure damage gasket 6. One end of the air pipe body 9 is fixedly connected to one end of the air pipe connector 8, and one end of the air pipe body 9 is fixedly connected to an air compressor. The protective anti-pressure damage gasket 6 can effectively prevent the fixing screw 5 from damaging the processed part 3 when it locks the processed part 3 into the interior of the device body 1. The protective anti-pressure damage gasket 6 can effectively protect the processed part 3. The air compressor connected to one end of the air pipe body 9 can provide power to the device.

[0034] See Figure 2 , 3A rubber buffer pad 10 is fixedly installed on one side of the inner wall of cavity 2. One side of the rubber buffer pad 10 is in contact with one end of the processed part 3. The position of the center hole of the rubber buffer pad 10 is symmetrical with the position of the slot 7. By setting the rubber buffer pad 10, the polishing rotor 11 can stop rotating when it touches the rubber buffer pad 10 and the push rod 18 during operation. At the same time, the rubber buffer pad 10 can prevent the entire polishing assembly from being damaged by hard contact under the action of airflow. The spacing between the spirals of the rifling grooves 12 is the same, and the positions of the pair of filler-sealed polishing grooves 13 are symmetrical. The positions of the rifling grooves 12 and the filler-sealed polishing grooves 13 are parallel to each other. Two air intake channels 15 are located at both ends of the polishing rotor 11 and are symmetrical to each other. The side of the two air intake channels 15 that is far away from each other is open. By setting the air intake channels 15, it is possible to effectively prevent the open bearing 16 from blocking the gas.

[0035] See Figure 3 , 6 7. A ring groove is provided on one side of the connecting block 17, and one side of the connecting block 17 fits against one side of one of the open bearings 16 through the ring groove; one end of the push rod 18 extends to the outside of the processed part 3. Gas channels 19 are provided inside both the connecting block 17 and the push rod 18, and the two gas channels 19 are interconnected. The direction and position of the polishing rotor 11 can be controlled by the push rod 18. At the same time, the ring groove and gas channel 19 provided on the connecting block 17 and the push rod 18 ensure that the connecting block 17 only contacts the outer ring of the open bearing 16, and the gas channel 19 can effectively discharge the working airflow, thereby improving the stability of the device during use.

[0036] In use: First, the operator inserts the workpiece 3 into the cavity 2 on one side of the main body 1 of the device. Then, by turning the fixing screw 5, the workpiece 3 is fixed inside the main body 1. Next, the two sides of the polishing rotor 11 are connected to the open bearing 16 through the bearing fastener 14 and inserted into the workpiece 3. One end of the connecting block 17 is then engaged with the open bearing 16, so that the push rod 18 is also inserted into the workpiece 3. Finally, the air compressor connected to one end of the air pipe body 9 directs the air into the workpiece. The gas inside the main body 1 causes the polishing rotor 11 to rotate, which in turn drives the filler and polishing agent such as diamond paste or silicon carbide paste in the sealed polishing tank 13 to polish the inner wall of the workpiece 3 under the centrifugal force of rotation. While the polishing rotor 11 is rotating, the push rod 18 can effectively control the direction and position of the polishing rotor 11. Under the action of the airflow, the polishing rotor 11 rotates and polishes the inner wall of the workpiece 3. Under the action of the push rod 18, it performs a reciprocating polishing action until the polishing is completed.

[0037] The above are merely preferred embodiments of the present invention; however, 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 its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A spindleless, internally mounted rifling compressed air polishing device, comprising a device body (1), characterized in that: A cavity (2) is provided on one side of the main body (1) of the device. A machining part (3) is inserted and installed inside the cavity (2). A pair of threaded grooves (4) are provided on the outer wall of the main body (1), and one end of the threaded grooves (4) is connected to the inside of the cavity (2). A fixing screw (5) is connected to the inside of the threaded grooves (4) by threads. A slot (7) is provided on the other side of the main body (1). An air pipe connector (8) is fixedly installed inside the slot (7), and one end of the air pipe connector (8) extends to the outside of the main body (1). An air pipe body (9) is provided at one end of the air pipe connector (8). A polishing rotor (11) is inserted and installed inside the machining part (3). A rifling groove (12) is provided on the surface of the polishing rotor (11), and the rifling groove (12) is spiral. A pair of filler-sealed polishing parts are provided on the outside of the polishing rotor (11). The groove (13) is filled with filling material. Both ends of the polishing rotor (11) are fixedly installed with bearing fasteners (14). Both ends of the polishing rotor (11) are provided with air inlet channels (15). Open bearings (16) are engaged on the outer sides of the two bearing fasteners (14). A connecting block (17) is inserted into the interior of the processing part (3). A push rod (18) is fixedly installed on the other side of the connecting block (17). A protective anti-pressure pad (6) is fixedly installed at the open end of the threaded groove (4). The protective anti-pressure pad (6) is tightly fitted to the outer wall of the processing part (3). One end of the fixing screw (5) is fitted to the outer wall of the protective anti-pressure pad (6). One end of the air pipe body (9) is fixedly connected to one end of the air pipe connector (8). An air compressor is fixedly connected to one end of the air pipe body (9).

2. The spindleless built-in rifling compressed air polishing device according to claim 1, characterized in that: A rubber buffer pad (10) is fixedly installed on one side of the inner wall of the cavity (2). One side of the rubber buffer pad (10) is in contact with one end of the processed part (3). The position of the center hole of the rubber buffer pad (10) is symmetrical to the position of the slot (7).

3. The spindleless built-in rifling compressed air polishing device according to claim 1, characterized in that: The spacing between the rifling grooves (12) is the same, and the positions of the pair of packing seal polishing grooves (13) are symmetrical to each other. The positions of the rifling grooves (12) and the packing seal polishing grooves (13) are parallel to each other.

4. The spindleless built-in rifling compressed air polishing device according to claim 1, characterized in that: The two air intake channels (15) are located at both ends of the polishing rotor (11) and are symmetrical to each other, and the sides of the two air intake channels (15) that are far apart from each other are open.

5. The spindleless built-in rifling compressed air polishing device according to claim 1, characterized in that: The connecting block (17) has an annular groove on one side, and one side of the connecting block (17) is in contact with one side of one of the open bearings (16) through the annular groove.

6. The spindleless built-in rifling compressed air polishing device according to claim 1, characterized in that: One end of the push rod (18) extends to the outside of the processed part (3). Both the connecting block (17) and the push rod (18) have gas channels (19) inside, and the two gas channels (19) are interconnected.

Images