A portable aluminium tube polishing apparatus

Abstract

The utility model discloses a portable aluminium flat pipe polishing equipment, including base, the base front fixedly connected with the switch, the base top right rear fixedly connected with the fixed frame, the fixed frame inboard left end sliding has the handle of the fixed frame through, through the positioning clamping of microchannel aluminium flat pipe on base, then according to the thickness of microchannel aluminium flat pipe to cutting disc and polishing block can move down the distance of limiting, then through starting motor drive cutting disc rotation, drive polishing block reciprocating motion simultaneously, when controlling cutting disc and polishing block move down, can directly after cutting microchannel aluminium flat pipe to cutting place burr complete polishing operation, solved the need of constantly operating handle control polishing part along microchannel aluminium flat tube cutting place horizontal movement, can to the corresponding surface cutting place complete polishing problem, make microchannel aluminium flat tube cutting place burr polishing operation more convenient.

Description

Technical Field

[0001] This utility model relates to the field of microchannel aluminum flat tube production technology, and in particular to a portable aluminum flat tube grinding device. Background Technology

[0002] Aluminum flat tubes are thin-walled, porous, flat tubular materials made from refined aluminum rods through hot extrusion and surface zinc spraying for corrosion protection. They are mainly used in air conditioning systems for various refrigerants as pipe components that carry new environmentally friendly refrigerants. They are key materials for the next generation of parallel flow microchannel air conditioning heat exchangers. After aluminum flat tubes are cut with a cutting disc, burrs remain at the cut edge. In existing technology, these burrs are removed using a separate grinding machine. Workers need to transport the aluminum flat tubes to the grinding machine to remove the burrs, which is not only time-consuming and labor-intensive but also requires an additional grinding machine.

[0003] According to patent application number 202223045944.X, entitled "An Integrated Aluminum Flat Tube Cutting and Grinding Equipment," this patent utilizes the cooperation of a cutting disc and a grinding component to simultaneously cut the workpiece and grind its outer wall to remove burrs generated during cutting. This eliminates the need to move the workpiece to the grinding equipment for grinding, thus improving work efficiency. Furthermore, the grinding component can move radially along the cutting disc, allowing adjustment of the distance between the side wall of the grinding component and the cutting edge of the disc to accommodate workpieces of varying thicknesses, thereby enhancing the equipment's applicability.

[0004] The aforementioned patent, through the cooperation of a cutting disc and a grinding component, can remove burrs generated during workpiece cutting and improve work efficiency. However, because its grinding plate is arc-shaped and grinds with the rotation of the cutting disc, when controlling the rotating grinding plate to grind the burrs at the cut of the microchannel aluminum flat tube, it is necessary to continuously operate the handle to control the grinding plate to move horizontally along the cut of the microchannel aluminum flat tube in order to achieve complete grinding of the corresponding cut surface. This makes the burr grinding operation at the cut of the microchannel aluminum flat tube inconvenient. Therefore, to address the above problems, a portable aluminum flat tube grinding device is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model overcomes the existing defects and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A portable aluminum flat tube grinding device includes a base, a power switch fixedly connected to the front end of the base, a fixed frame fixedly connected to the rear right side of the top of the base, a handle that slides through the fixed frame on the inner left side of the fixed frame, a bracket fixedly connected to the front left side of the handle, a motor fixedly connected to the front inner side of the handle, and the motor's main shaft passing through the bracket, the motor's main shaft being rotatably connected to the bracket, a cutting disc fixedly connected to the outer side of the motor's main shaft, eccentric wheels located inside the bracket on both sides of the cutting disc, the eccentric wheels being fixedly connected to the motor's main shaft, an L-shaped limiting rod on the outer side of the eccentric wheel passing through the bracket, the limiting rod being slidably connected to the bracket, a sleeve fixedly connected to the bottom of the limiting rod, and a grinding block contacting the inner side of the sleeve.

[0008] As a further improvement of this utility model, a stop bar is fixedly connected to the center of the top of the base, and a U-shaped clamping frame is provided at the front end of the stop bar, and the clamping frame contacts the base. A slider with a limit sliding on the top of the inner side of the base is fixedly connected to the bottom end of the clamping frame, and a fixed threaded shaft that passes through the slider and the base is spirally connected to the inner side of the slider, and the fixed threaded shaft is rotatably connected to the base.

[0009] As a further improvement of this utility model, a limiting block is fixedly connected to the outer rear end of the handle, and the limiting block slides to the left end of the inner side of the fixing frame. A spring is fixedly connected to the top of the limiting block, and the other end of the spring is fixedly connected to the fixing frame.

[0010] As a further improvement of this utility model, both ends of the grinding block are spirally connected with bolts that pass through the sleeve rod, and the bolts are spirally connected to the sleeve rod.

[0011] As a further improvement of this utility model, the bottom outer side of the fixed frame is in contact with a stop, and the right end of the inner side of the stop is screwed with an adjusting threaded shaft that passes through the stop and the fixed frame, and the adjusting threaded shaft is rotatably connected to the fixed frame. The front end of the fixed frame is fixedly connected with a scale that contacts the stop.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By positioning and clamping the microchannel aluminum flat tube on the base, and then limiting the downward movement distance of the cutting disc and grinding block according to the thickness of the microchannel aluminum flat tube, the cutting disc is driven to rotate by starting the motor, while the grinding block is driven to reciprocate back and forth. When controlling the downward movement of the cutting disc and grinding block, the burrs at the cut point can be completely ground directly after the microchannel aluminum flat tube is cut. This solves the problem of having to constantly operate the handle to control the grinding component to move horizontally along the cut point of the microchannel aluminum flat tube in order to completely grind the corresponding cut point, making the burr grinding operation at the cut point of the microchannel aluminum flat tube more convenient. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] Figure 1 This is a schematic diagram of the overall structure of a portable aluminum flat tube grinding device according to the present invention.

[0016] Figure 2 This is a partial cross-sectional view of the base of a portable aluminum flat tube grinding device according to the present invention.

[0017] Figure 3 This is a cross-sectional view of the mounting bracket for a portable aluminum flat tube grinding device according to the present invention.

[0018] Figure 4 This is a cross-sectional view of a portable aluminum flat tube grinding equipment support according to the present invention.

[0019] Figure 5 This is a schematic diagram of the installation structure of the eccentric wheel in a portable aluminum flat tube grinding device according to this utility model.

[0020] In the diagram: 1. Base; 2. Power switch; 3. Stop bar; 4. Clamping frame; 5. Slider; 6. Fixed threaded shaft; 7. Fixing frame; 8. Handle; 9. Limit block; 10. Spring; 11. Bracket; 12. Motor; 13. Cutting disc; 14. Eccentric wheel; 15. Limit bar; 16. Sleeve rod; 17. Grinding block; 18. Bolt; 19. Stop frame; 20. Adjusting threaded shaft; 21. Ruler. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. All parts involving precision gear structures and rotating structures are provided with protective structures and sealing mechanisms, which will not be repeated in this application. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1

[0023] like Figure 1-5As shown, a portable aluminum flat tube grinding device includes a base 1. A power switch 2 is fixedly connected to the front end of the base 1. A mounting bracket 7 is fixedly connected to the rear right side of the top of the base 1. A handle 8 is slidably connected to the left side of the mounting bracket 7. A support 11 is fixedly connected to the front left side of the handle 8. A motor 12 is fixedly connected to the front inner side of the handle 8, and the main shaft of the motor 12 passes through the support 11. The main shaft of the motor 12 is rotatably connected to the support 11. A cutting disc 13 is fixedly connected to the outside of the main shaft of the motor 12. Eccentric wheels 14 are provided on both the left and right sides of the cutting disc 13, located inside the support 11. The eccentric wheels 14 are fixedly connected to the main shaft of the motor 12. An L-shaped limiting rod 15 is provided on the outside of the eccentric wheel 14, and the limiting rod 15 passes through the support 11. The limiting rod 15 is slidably connected to the support 11. A sleeve rod 16 is fixedly connected to the bottom of the limiting rod 15. A grinding block 17 is in contact with the inside of the sleeve rod 16.

[0024] Furthermore, such as Figure 1-2 As shown, a stop bar 3 is fixedly connected to the center of the top of the base 1. A U-shaped clamping frame 4 is provided at the front end of the stop bar 3, and the clamping frame 4 is in contact with the base 1. A slider 5 with a limit sliding on the top of the inner side of the base 1 is fixedly connected to the bottom of the clamping frame 4. A fixed threaded shaft 6 that passes through the slider 5 and the base 1 is spirally connected to the inner side of the slider 5, and the fixed threaded shaft 6 is rotatably connected to the base 1. By placing the microchannel aluminum flat tube between the stop bar 3 and the clamping frame 4, and then rotating the fixed threaded shaft 6 to spirally connect with the slider 5, the clamping frame 4 is further controlled to move closer to the microchannel aluminum flat tube, which facilitates the positioning and clamping of the microchannel aluminum flat tube on the top of the base 1 by the clamping frame 4 and the stop bar 3.

[0025] Furthermore, such as Figure 3 As shown, a limiting block 9 is fixedly connected to the outer rear end of the handle 8, and the limiting block 9 slides on the inner left side of the fixing frame 7. A spring 10 is fixedly connected to the top of the limiting block 9, and the other end of the spring 10 is fixedly connected to the fixing frame 7. After manually pressing the handle 8 to move down and control the cutting disc 13 and the grinding block 17 to cut and grind the microchannel aluminum flat tube, the pressure on the handle 8 is slowly released, so that the stretched spring 10 continuously pulls the handle 8 up through the limiting block 9, which facilitates the reset of the cutting disc 13 and the grinding block 17 on the bracket 11.

[0026] Furthermore, such as Figure 4-5 As shown, both ends of the grinding block 17 are spirally connected with bolts 18 that pass through the sleeve rod 16, and the bolts 18 are spirally connected to the sleeve rod 16. By using a wrench to rotate the bolts 18 to disengage them from the spiral connection, it is convenient to replace the grinding block 17 periodically.

[0027] Furthermore, such as Figure 1 and Figure 3As shown, the bottom outer side of the fixed frame 7 contacts a baffle 19. The right inner side of the baffle 19 is screwed with an adjusting threaded shaft 20 that passes through the baffle 19 and the fixed frame 7, and the adjusting threaded shaft 20 is rotatably connected to the fixed frame 7. The front end of the fixed frame 7 is fixedly connected with a scale 21 that contacts the baffle 19. By rotating the adjusting threaded shaft 20 and the baffle 19 according to the thickness of the microchannel aluminum flat tube, the baffle 19 can be further controlled to move up and down along the fixed frame 7. When the scale on the scale 21 pointed to by the baffle 19 is the same as the thickness of the microchannel aluminum flat tube, the distance that the handle 8 can move down is limited by the adjusted baffle 19. This makes it convenient to limit the distance that the cutting disc 13 and the grinding block 17 on the support 11 on one side of the handle 8 can move down, thereby facilitating the cutting and grinding of microchannel aluminum flat tubes of different thicknesses.

[0028] The grinding principle during the microchannel aluminum flat tube cutting process: First, the microchannel aluminum flat tube is positioned and clamped on the base 1 by the stop bar 3 and the clamping frame 4. Then, according to the thickness of the microchannel aluminum flat tube, the position of the stop bar 19 is adjusted by rotating the adjusting threaded shaft 20, further limiting the downward movement distance of the cutting disc 13 and the grinding block 17. After completing the above operations, the power switch 2 is manually pressed to start the motor 12. At this time, the motor 12 will drive the cutting disc 13 to rotate, and at the same time drive the eccentric wheel 14 to rotate, reciprocatingly pushing the L-shaped limit rod 15. Then, the limit rod 15 will drive the grinding block 17 to reciprocate back and forth through the sleeve rod 16. Then, the control handle 8 is lowered, driving the limit block 9 to stretch the spring 10, and at the same time, through the bracket 11... Control the cutting disc 13 and the grinding block 17 to move downwards. During this downward movement, the cutting disc 13 will cut the microchannel aluminum flat tube. Then, continue to operate the handle 8 to move downwards. When the handle 8 is blocked by the stop 19 and cannot move downwards further, the grinding block 17, which moves back and forth, will contact the cut area of ​​the microchannel aluminum flat tube to perform grinding. After the grinding time reaches five seconds, release the pressure on the handle 8 to reset the cutting disc 13 and the grinding block 17. Then, press the power switch 2 again to stop the motor 12. At this time, the grinding of one side of the cut area is completed. Then, release the positioning clamp on the microchannel aluminum flat tube. Finally, after flipping the microchannel aluminum flat tube, repeat the above operation to continue the burr grinding operation of the other side of the cut area.

[0029] The above are preferred embodiments of the present invention. The basic principles, main features, and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope thereof. All such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable aluminum flat tube grinding device, comprising a base (1), characterized in that: A power switch (2) is fixedly connected to the front end of the base (1). A fixing frame (7) is fixedly connected to the rear right side of the top of the base (1). A handle (8) that slides through the fixing frame (7) is limited on the left side of the inner side of the fixing frame (7). A bracket (11) is fixedly connected to the front left side of the handle (8). A motor (12) is fixedly connected to the front inner side of the handle (8), and the main shaft of the motor (12) passes through the bracket (11). The main shaft of the motor (12) is rotatably connected to the bracket (11). The outer side of the main shaft of the motor (12) A cutting disc (13) is fixedly connected. On both sides of the cutting disc (13) are eccentric wheels (14) located inside the bracket (11). The eccentric wheels (14) are fixedly connected to the main shaft of the motor (12). An L-shaped limiting rod (15) is provided on the outside of the eccentric wheel (14). The limiting rod (15) passes through the bracket (11). The limiting rod (15) is slidably connected to the bracket (11). A sleeve rod (16) is fixedly connected to the bottom of the limiting rod (15). A grinding block (17) is in contact with the inner side of the sleeve rod (16).

2. The portable aluminum flat tube grinding equipment according to claim 1, characterized in that: A stop bar (3) is fixedly connected to the center of the top of the base (1). A U-shaped clamping frame (4) is provided at the front end of the stop bar (3), and the clamping frame (4) is in contact with the base (1). A slider (5) with a limit sliding on the top of the inner side of the base (1) is fixedly connected to the bottom end of the clamping frame (4). A fixed threaded shaft (6) that passes through the slider (5) and the base (1) is spirally connected to the inner side of the slider (5), and the fixed threaded shaft (6) is rotatably connected to the base (1).

3. The portable aluminum flat tube grinding equipment according to claim 1, characterized in that: The outer rear end of the handle (8) is fixedly connected to a limiting block (9), and the limiting block (9) slides within the left side of the fixing frame (7). The top end of the limiting block (9) is fixedly connected to a spring (10), and the other end of the spring (10) is fixedly connected to the fixing frame (7).

4. The portable aluminum flat tube grinding equipment according to claim 1, characterized in that: Both ends of the grinding block (17) are spirally connected with bolts (18) that pass through the sleeve rod (16), and the bolts (18) are spirally connected to the sleeve rod (16).

5. The portable aluminum flat tube grinding equipment according to claim 1, characterized in that: The bottom of the outer side of the fixed frame (7) is in contact with a stop (19). The right end of the inner side of the stop (19) is screwed with an adjusting threaded shaft (20) that passes through the stop (19) and the fixed frame (7). The adjusting threaded shaft (20) is rotatably connected to the fixed frame (7). The front end of the fixed frame (7) is fixedly connected with a scale (21) that contacts the stop (19).

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