Bicycle rim five-axis machining mechanism with circulating cooling mechanism

Through the design of the circulating cooling mechanism, the problem of coolant temperature rise in the five-axis machining mechanism of bicycle rims is solved, efficient cooling of bicycle rim workpieces and tools is achieved, and machining accuracy and safety are improved.

CN223477098UActive Publication Date: 2025-10-28DONGGUAN RONGGUANG AUTOMATION EQUIP CO LTD
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Patent Information

Application Number
CN202422992715.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-10-28
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

During the cooling process of the five-axis machining mechanism for bicycle rims, the temperature of the coolant rises, resulting in a decrease in the cooling effect of the tool, affecting the machining accuracy.

Method used

A five-axis machining mechanism for bicycle rims with a circulating cooling mechanism was designed. The mechanism includes bamboo tubes, a liquid collecting tank, a filter, a water outlet pipe, a water pump, a cooling pipe, a fan and other components to achieve circulating filtration and cooling of the coolant. Coolant is sprayed through the bamboo tubes to cool the workpiece and tool. The cooling pipe and fan are used to accelerate heat dissipation, and the coolant is circulated to improve the cooling effect.

Benefits of technology

It achieves effective cooling of bicycle wheel rim workpieces and cutting tools, improves processing accuracy, and filters impurities through the filter screen and filter cartridge to ensure the purity of the coolant and enhance processing safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223477098U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of bicycle production and processing, and discloses a bicycle rim five-axis processing mechanism with a circulating cooling mechanism, which comprises a machine table, and a mounting cover is fixed at the top end of the machine table. When the bicycle rim five-axis machining mechanism with the circulating cooling mechanism is used, a first water pump is started, cooling liquid can be pumped out and sprayed to the top end of a workpiece through a bamboo joint pipe, the workpiece and a cutter are cooled, meanwhile, a second water pump can be controlled to be started, and the heated cooling liquid in a liquid storage box is pumped out into a cooling pipe; heat in cooling liquid can be guided out through the disc-shaped aluminum cooling pipe, circulating auxiliary cooling is conducted on the cooling liquid, the cooled cooling liquid enters the liquid storage tank again through the connecting pipe to be used, and the cooling effect on a cutter can be improved through circulating cooling of the used cooling liquid; the problem that it is inconvenient to use a cutter in a machining mechanism and carry out circulating cooling on a bicycle rim workpiece is solved.
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Description

Technical Field

[0001] This utility model relates to the field of bicycle manufacturing and processing technology, specifically a five-axis processing mechanism for bicycle wheel rims with a circulating cooling mechanism. Background Technology

[0002] A bicycle is a two-wheeled vehicle that uses two feet to pedal and drive a chain to move forward. It is also called a pedal bike or bicycle. As a green and environmentally friendly means of transportation, it is loved by many people. It is mainly composed of a frame and a wheel rim. The bicycle wheel rim is an important part of the bicycle wheel system. It is usually round and together with the axle, spokes, inner tube and outer tire, it forms the wheel system. In order to ensure the precision of the integral machining of the wheel rim, some high-end bicycle wheel rims require the use of a five-axis machining mechanism during the production and processing.

[0003] However, when using a five-axis machining mechanism for bicycle wheel rims to cool the internal cutting tools and wheel rim workpieces using coolant during the turning process, the heat generated between the cutting tools and the wheel rim workpieces during the machining process causes the coolant circulating inside the mechanism to heat up. This reduces the cooling effect on the cutting tools and affects the machining accuracy of the bicycle wheel rims. This is a drawback, as it is not convenient to use the internal machining mechanism for circulating cooling of the cutting tools and bicycle wheel rim workpieces.

[0004] Now, a novel five-axis machining mechanism for bicycle wheel rims with a circulating cooling system is proposed to address the above-mentioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide a five-axis machining mechanism for bicycle wheel rims with a circulating cooling system, so as to solve the problem mentioned in the background art that it is inconvenient to use cutting tools inside the machining mechanism and to circulate and cool bicycle wheel rim workpieces.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a five-axis machining mechanism for bicycle wheel rims with a circulating cooling mechanism, comprising a machine base, a mounting cover fixed to the top of the machine base, a control box fixed to the left side of the mounting cover, and a cooling mechanism for auxiliary circulating cooling of the cutting tools inside the mechanism on the right side of the machine base.

[0007] The cooling mechanism includes a bamboo-joint tube, a liquid collection tank, a filter screen, a water outlet pipe, a water return pipe, a water pump one, a liquid inlet, a connecting pipe, a water pump two, a fixing frame, a cooling pipe, a fan, a liquid storage tank, and a liquid extraction pipe. A liquid storage tank is fixed to the right side of the machine base, and a water return pipe is fixed to the left side of the top of the liquid storage tank. A liquid collection tank is opened inside the top of the machine base, and a filter screen is fixed to the right side inside the liquid collection tank. Water pump one is installed and fixed to the top of the liquid storage tank, and a water outlet pipe is installed and fixed to the output end of water pump one. The left side of the water outlet pipe passes through the inside of the right side of the mounting cover and is fixed with a bamboo-joint tube. A liquid extraction pipe is installed and fixed to the input end of water pump one. A liquid inlet is fixed to the right side of the top of the liquid storage tank. A fixing frame is fixed to the right side of the liquid storage tank, and water pump two is installed and fixed to the top of the fixing frame. A connecting pipe is fixed to the output end of water pump two. A fan is fixed to the left side inside the fixing frame, and a cooling pipe is vertically fixed inside the fixing frame.

[0008] Furthermore, the left side of the liquid collection tank penetrates the interior of the top right side of the machine platform and is connected to the interior of the liquid collection tank, and the bottom end of the liquid extraction pipe penetrates the interior of the top of the liquid storage tank and extends downward to the bottom of the interior of the liquid storage tank.

[0009] Furthermore, the top end of the cooling pipe penetrates the interior of the top end of the fixed frame and is fixedly connected to the input end of the second water pump; the left side of the connecting pipe penetrates the interior of the top right side of the liquid storage tank; the bottom end of the cooling pipe penetrates the interior of the bottom end of the fixed frame and is fixedly connected to the bottom right side of the liquid storage tank; and the cooling pipe is connected to the interior of the liquid storage tank.

[0010] Preferably, a groove is provided inside the top of the liquid inlet, and a filter cartridge is provided inside the groove. A sealing cap is threadedly connected to the top of the liquid inlet.

[0011] Preferably, the front end of the control box is provided with a protective cover, and the top two sides of the protective cover are respectively fixed with fixing feet, the top front two sides of the control box are respectively fixed with fixing feet, and the bottom end of the protective cover is fixed with a handle.

[0012] Furthermore, the fixing foot is hinged to the interior of the fixing frame, and the protective cover is a transparent acrylic component.

[0013] Preferably, a base is fixed to the bottom of the liquid collection tank, and a movable seat is vertically provided at the top of the base. A movable platform is provided at the front end of the movable platform, and a lead screw is horizontally movably connected inside the movable platform. A threaded sleeve is threadedly connected to the outside of the lead screw. A processing table is provided at the top of the movable platform. The top of the threaded sleeve penetrates the inside of the top of the movable platform and is fixedly connected to the bottom of the processing table. A lead screw is movably connected inside the top of the base, and a threaded sleeve is threadedly connected to the outside of the lead screw. The top of the threaded sleeve penetrates the inside of the top of the base and is fixedly connected to the bottom of the movable platform. A servo motor is fixedly installed on the left side of the movable platform. A servo motor is fixedly installed at the rear end of the base. A servo motor is fixedly installed at the top of the movable platform. A lead screw is vertically movably connected inside the front end of the movable platform, and a threaded sleeve is threadedly connected to the outside of the lead screw. The front end of the threaded sleeve penetrates the inside of the front end of the movable platform and is fixedly connected to the rear end of the movable platform.

[0014] Preferably, a mounting bracket is fixedly installed at the top of the inside of the mounting cover, and a spindle box is provided inside the mounting bracket. A machining tool is installed at the bottom of the spindle box. Connecting shafts are fixed on both sides of the spindle box, and the connecting shafts pass through the inside of both sides of the mounting bracket. A servo motor four is fixedly installed on the left side of the mounting bracket, and the output shaft of the servo motor four is fixedly connected to the connecting shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the five-axis machining mechanism for bicycle wheel rims with a circulating cooling mechanism not only facilitates the circulating cooling of the cutting tools and bicycle wheel rim workpieces inside the machining mechanism, but also facilitates the auxiliary filtration and purification of the coolant added to the machining mechanism, and provides convenient protection against accidental touches to the control components of the machining mechanism.

[0016] (1) The machining mechanism, equipped with a bamboo-joint pipe, water outlet pipe, water return pipe, water pump one, liquid inlet, connecting pipe, water pump two, fixed frame, cooling pipe, fan, liquid storage tank, and liquid extraction pipe, is used to process bicycle wheel rims. After the bicycle wheel rim is mounted and fixed on the top of the machining table, the machining tool and the workpiece are moved and coordinated by the five-axis control to perform turning machining on the bicycle wheel rim. At the same time, during the machining process, water pump one can be started to extract the coolant stored in the liquid storage tank through the liquid extraction pipe and export it through the water outlet pipe. Then, it is sprayed onto the top of the workpiece through the bamboo-joint pipe, which can provide auxiliary cooling and cooling for the workpiece and the tool. The spray position of the bamboo-joint pipe can be adjusted. The coolant after cooling will flow The coolant is collected inside the collection tank. After being filtered by a filter screen, the coolant flows back to the storage tank. At the same time, the water pump can be started to draw the heated coolant from the storage tank to the cooling pipe. The disc-shaped aluminum cooling pipe can dissipate the heat from the coolant and circulate it for auxiliary cooling. A fan can also be turned on to blow air into the cooling pipe to accelerate the heat dissipation efficiency of the coolant. The cooled coolant then returns to the storage tank through the connecting pipe for reuse. By circulating and cooling the coolant, the cooling effect on the cutting tools can be improved, which is convenient for the circulating cooling of cutting tools and bicycle wheel rims inside the machining mechanism.

[0017] (2) By setting up a liquid storage tank, liquid filling port, slot and filter cartridge, the bicycle wheel rim five-axis machining mechanism can insert the filter cartridge into the slot when adding coolant to the liquid storage tank. The filter cartridge can help filter and remove some particulate impurities in the added coolant, thereby improving the purity of the coolant.

[0018] (3) By setting up a control box, a fixed frame, fixed feet and a protective cover, the bicycle wheel rim five-axis machining mechanism uses the control box to control the five axes to drive the machining tool and the workpiece displacement to perform turning machining on the bicycle wheel rim workpiece. At the same time, when the control box is in use, a protective cover is hinged to the front end of the control box. The protective cover can provide an auxiliary outer cover to enclose the display and operation area at the front end of the control box, which facilitates the protection against accidental touch of the operation buttons of the control components and improves the safety of the machining mechanism during use. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a side view enlarged structural diagram of the base of this utility model;

[0021] Figure 3 This is a side view enlarged structural schematic diagram of the cooling pipe of this utility model;

[0022] Figure 4 This is a magnified cross-sectional view of the liquid inlet of this utility model.

[0023] Figure 5 This is a partial enlarged cross-sectional view of the protective cover of this utility model.

[0024] In the diagram: 1. Machine base; 2. Liquid collection tank; 3. Base; 4. Mounting cover; 5. Control box; 6. Servo motor 1; 7. Movable table; 8. Movable seat; 9. Servo motor 4; 10. Mounting bracket; 11. Spindle box; 12. Connecting shaft; 13. Machining tool; 14. Bamboo-joint tube; 15. Servo motor 2; 16. Threaded sleeve 1; 17. Lead screw 1; 18. Filter screen; 19. Outlet pipe; 20. Return pipe; 2 1. Water pump one; 22. Liquid inlet; 23. Connecting pipe; 24. Water pump two; 25. Fixing frame; 26. Cooling pipe; 27. Fan; 28. Liquid storage tank; 29. ​​Servo motor three; 30. Lead screw two; 31. Threaded sleeve two; 32. Slot; 33. Filter cartridge; 34. Fixing bracket; 35. Fixing foot; 36. Protective cover; 37. Threaded sleeve three; 38. Lead screw three; 39. Liquid extraction pipe; 40. Processing table. Detailed Implementation

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Please see Figure 1-5 This utility model provides an embodiment: a five-axis machining mechanism for bicycle wheel rims with a circulating cooling mechanism, including a machine base 1, a mounting cover 4 fixed to the top of the machine base 1, a control box 5 fixed to the left side of the mounting cover 4, and a cooling mechanism for auxiliary circulating cooling of the cutting tools inside the mechanism on the right side of the machine base 1.

[0027] The cooling mechanism includes a bamboo-joint tube 14, a liquid collection tank 2, a filter screen 18, a water outlet pipe 19, a water return pipe 20, a water pump 21, a liquid inlet 22, a connecting pipe 23, a water pump 24, a fixing frame 25, a cooling pipe 26, a fan 27, a liquid storage tank 28, and a liquid extraction pipe 39. The liquid storage tank 28 is fixed to the right side of the machine base 1, and the water return pipe 20 is fixed to the left side of the top of the liquid storage tank 28. A liquid collection tank 2 is opened inside the top of the machine base 1, and a filter screen 18 is fixed to the right side inside the liquid collection tank 2. A water pump 21 is installed and fixed to the top of the liquid storage tank 28. A water outlet pipe 19 is installed and fixed at the output end of water pump 21. The left side of the water outlet pipe 19 passes through the inside of the right side of the mounting cover 4 and is fixed with a bamboo joint pipe 14. A liquid extraction pipe 39 is installed and fixed at the input end of water pump 21. A liquid filling port 22 is fixed at the right side of the top of the liquid storage tank 28. A fixing frame 25 is fixed at the right side of the liquid storage tank 28. A second water pump 24 is installed and fixed at the top of the fixing frame 25. A connecting pipe 23 is fixed at the output end of the second water pump 24. A fan 27 is fixed at the left side inside the fixing frame 25. A cooling pipe 26 is vertically fixed inside the fixing frame 25.

[0028] The left side of the liquid collection tank 2 penetrates the interior of the top right side of the machine base 1 and is connected to the interior of the liquid collection tank 2. The bottom end of the liquid extraction pipe 39 penetrates the interior of the top of the liquid storage tank 28 and extends downward to the bottom of the interior of the liquid storage tank 28. The top end of the cooling pipe 26 penetrates the interior of the top of the fixed frame 25 and is fixedly connected to the input end of the water pump 24. The left side of the connecting pipe 23 penetrates the interior of the top right side of the liquid storage tank 28. The bottom end of the cooling pipe 26 penetrates the interior of the bottom of the fixed frame 25 and is fixedly connected to the bottom right side of the liquid storage tank 28. The cooling pipe 26 is connected to the interior of the liquid storage tank 28.

[0029] Specifically, such as Figure 1 and Figure 3 As shown, the controllable water pump 21 can be started to draw coolant stored in the storage tank 28 through the suction pipe 39 and discharge it through the outlet pipe 19. Then, it is sprayed onto the top of the workpiece through the bamboo joint pipe 14, which can provide auxiliary cooling for the workpiece and tool. The spray position of the bamboo joint pipe 14 can be adjusted. After cooling, the coolant will flow into the collection tank 2 and be filtered through the filter screen 18 to remove debris. Then, it flows back into the storage tank 28 through the collection tank 2. At the same time, the water pump 24 can be started to circulate coolant from the storage tank 28. The heated coolant is drawn into the cooling pipe 26. The disc-shaped aluminum cooling pipe 26 can dissipate the heat from the coolant and circulate it for auxiliary cooling. The fan 27 can also be turned on to blow air into the cooling pipe 26 to accelerate the heat dissipation efficiency of the coolant. The cooled coolant is then returned to the storage tank 28 through the connecting pipe 23 for reuse. By circulating and cooling the coolant, the cooling effect on the cutting tool can be improved, which is convenient for the circulating cooling of cutting tools and bicycle wheel rim workpieces inside the machining mechanism.

[0030] The top of the liquid inlet 22 has a groove 32 inside, and a filter cartridge 33 is installed inside the groove 32. The top of the liquid inlet 22 is threadedly connected to a sealing cap.

[0031] Specifically, such as Figure 1 and Figure 4 As shown, when adding coolant to the inside of the reservoir 28, the filter cartridge 33 can be inserted into the slot 32. The filter cartridge 33 can help filter and remove some particulate impurities in the added coolant, thereby improving the purity of the coolant.

[0032] The front end of the control box 5 is provided with a protective cover 36, and the two sides of the top of the protective cover 36 are respectively fixed with fixed feet 35. The two sides of the front end of the top of the control box 5 are respectively fixed with fixed feet 35. The bottom end of the protective cover 36 is fixed with a handle. The fixed feet 35 are hinged to the inside of the fixed frame 34. The protective cover 36 is a transparent acrylic component.

[0033] Specifically, such as Figure 1 and Figure 5 As shown, during the turning process of bicycle wheel rim workpiece, the five axes are controlled by the control box 5 to drive the machining tool 13 and the workpiece displacement. A protective cover 36 is hinged to the front end of the control box 5 to provide auxiliary outer cover sealing to prevent accidental touch protection of the display and operation area at the front end of the control box 5.

[0034] A base 3 is fixed to the bottom of the liquid collection tank 2, and a movable seat 8 is vertically installed at the top of the base 3. A movable platform 7 is installed at the front end of the movable seat 8, and a lead screw 17 is horizontally movably connected inside the movable platform 7. A threaded sleeve 16 is threadedly connected to the outside of the lead screw 17. A processing table 40 is installed at the top of the movable platform 7. The top of the threaded sleeve 16 passes through the inside of the top of the movable platform 7 and is fixedly connected to the bottom of the processing table 40. A lead screw 38 is movably connected inside the top of the base 3, and a threaded sleeve 38 is threadedly connected to the outside of the lead screw 38. The top of the threaded sleeve 37 passes through the interior of the top of the base 3 and is fixedly connected to the bottom of the movable seat 8. The left side of the movable table 7 is fixedly mounted with a servo motor 6. The rear end of the base 3 is fixedly mounted with a servo motor 29. The top of the movable seat 8 is fixedly mounted with a servo motor 15. The front end of the movable seat 8 is vertically movably connected with a lead screw 30, and the external thread of the lead screw 30 is threadedly connected with a threaded sleeve 31. The front end of the threaded sleeve 31 passes through the interior of the front end of the movable seat 8 and is fixedly connected to the rear end of the movable table 7.

[0035] A mounting bracket 10 is fixedly installed at the top of the mounting cover 4, and a spindle box 11 is provided inside the mounting bracket 10. A machining tool 13 is installed at the bottom of the spindle box 11. Connecting shafts 12 are fixed on both sides of the spindle box 11, and the connecting shafts 12 pass through the interior of both sides of the mounting bracket 10. A servo motor 4 9 is fixedly installed on the left side of the mounting bracket 10, and the output shaft of the servo motor 4 9 is fixedly connected to the connecting shaft 12.

[0036] Working Principle: This utility model's five-axis machining mechanism for bicycle wheel rims, when machining bicycle wheel rims, involves mounting and fixing the workpiece on the top of the machining table 40. The five-axis control of the machining tool 13 and the workpiece's displacement is used to perform turning machining. Simultaneously, during machining, water pump 21 can be started to draw coolant stored in the reservoir 28 through the extraction pipe 39 and outlet pipe 19. The coolant is then sprayed onto the top of the workpiece through the bamboo-joint pipe 14, providing auxiliary cooling for both the workpiece and the cutting tool. The bamboo-joint pipe 14 has an adjustable spray position. After use, the coolant flows into the collection tank 2, where it is filtered through a filter screen 18 to remove debris before returning to the reservoir 28. Simultaneously, water pump 24 can be started to draw the heated coolant from the reservoir 28 into the cooling pipe 26, utilizing the disc-shaped aluminum cooling pipe 26. 6 can dissipate heat from the coolant and circulate it for auxiliary cooling. Fan 27 can also be turned on to blow air onto the cooling pipe 26, accelerating the heat dissipation efficiency of the coolant. The cooled coolant then re-enters the reservoir 28 through the connecting pipe 23. This circulating cooling of the coolant improves the cooling effect on the cutting tool and bicycle wheel rim workpiece. When adding coolant to the reservoir 28, the filter cartridge 33 can be inserted into the slot 32. The filter cartridge 33 can filter and remove some particulate impurities from the added coolant. During the turning process of the bicycle wheel rim workpiece, the five-axis control mechanism 5 drives the cutting tool 13 and the workpiece to coordinate their displacement. A protective cover 36 is hinged to the front of the control box 5. This protective cover 36 provides auxiliary enclosure protection for the display and operation area at the front of the control box 5, preventing accidental touches.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A five-axis machining mechanism for bicycle wheel rims with a circulating cooling system, comprising a machine base (1), characterized in that: The top of the machine base (1) is fixed with a mounting cover (4), and a control box (5) is fixed on the left side of the mounting cover (4). The right side of the machine base (1) is provided with a cooling mechanism for auxiliary circulating cooling of the cutting tools and bicycle wheel rim workpieces inside the mechanism. The cooling mechanism includes a bamboo-joint tube (14), a liquid collection tank (2), a filter screen (18), a water outlet pipe (19), a water return pipe (20), a water pump one (21), a liquid inlet (22), a connecting pipe (23), a water pump two (24), a fixing frame (25), a cooling pipe (26), a fan (27), a liquid storage tank (28), and a liquid extraction pipe (39). The liquid storage tank (28) is fixed on the right side of the machine base (1), and the water return pipe (20) is fixed on the left side of the top of the liquid storage tank (28). The liquid collection tank (2) is opened inside the top of the machine base (1), and the filter screen (18) is fixed on the right side inside the liquid collection tank (2). The water pump one (21) is installed and fixed on the top of the liquid storage tank (28). A water outlet pipe (19) is fixedly installed at the output end of water pump one (21). The left side of the water outlet pipe (19) passes through the inside of the right side of the mounting cover (4) and is fixedly connected to a bamboo joint pipe (14). A liquid extraction pipe (39) is fixedly installed at the input end of water pump one (21). A liquid filling port (22) is fixedly installed on the right side of the top of the liquid storage tank (28). A fixing frame (25) is fixedly installed on the right side of the liquid storage tank (28). A water pump two (24) is fixedly installed at the top of the fixing frame (25). A connecting pipe (23) is fixedly installed at the output end of water pump two (24). A fan (27) is fixedly installed on the left side inside the fixing frame (25). A cooling pipe (26) is vertically fixed inside the fixing frame (25).

2. The five-axis machining mechanism for bicycle wheel rims with a circulating cooling mechanism according to claim 1, characterized in that: The left side of the liquid collection tank (2) penetrates the inside of the top right side of the machine platform (1) and is connected to the inside of the liquid collection tank (2). The bottom end of the liquid extraction pipe (39) penetrates the inside of the top of the liquid storage tank (28) and extends downward to the bottom of the inside of the liquid storage tank (28).

3. The five-axis machining mechanism for bicycle wheel rims with a circulating cooling mechanism according to claim 1, characterized in that: The top end of the cooling pipe (26) passes through the interior of the top end of the fixed frame (25) and is fixedly connected to the input end of the second water pump (24). The left side of the connecting pipe (23) passes through the interior of the top right side of the liquid storage tank (28). The bottom end of the cooling pipe (26) passes through the interior of the bottom end of the fixed frame (25) and is fixedly connected to the bottom right side of the liquid storage tank (28). The cooling pipe (26) is connected to the interior of the liquid storage tank (28).

4. A five-axis machining mechanism for bicycle wheel rims with a circulating cooling system according to claim 1, characterized in that: The top of the liquid inlet (22) is provided with a slot (32), and a filter cartridge (33) is provided inside the slot (32). The top of the liquid inlet (22) is threadedly connected to a sealing cap.

5. A five-axis machining mechanism for bicycle wheel rims with a circulating cooling system according to claim 1, characterized in that: The front end of the control box (5) is provided with a protective cover (36), and the top two sides of the protective cover (36) are respectively fixed with fixing feet (35). The top front end of the control box (5) is respectively fixed with fixing feet (35), and the bottom end of the protective cover (36) is fixed with a handle.

6. A five-axis machining mechanism for bicycle wheel rims with a circulating cooling system according to claim 5, characterized in that: The fixed foot (35) is hinged to the interior of the fixed frame (34), and the protective cover (36) is a transparent acrylic material component.

7. A five-axis machining mechanism for bicycle wheel rims with a circulating cooling system according to claim 1, characterized in that: The bottom of the liquid collection tank (2) is fixed with a base (3), and a movable seat (8) is vertically arranged at the top of the base (3). A movable platform (7) is arranged at the front end of the movable platform (8), and a lead screw (17) is movably connected laterally inside the movable platform (7). A threaded sleeve (16) is threadedly connected to the outside of the lead screw (17). A processing table (40) is arranged at the top of the movable platform (7). The top of the threaded sleeve (16) penetrates the inside of the top of the movable platform (7) and is fixedly connected to the bottom of the processing table (40). A lead screw (38) is movably connected inside the top of the base (3), and a threaded sleeve (38) is threadedly connected to the outside of the lead screw (3). Threaded sleeve three (37), the top end of which penetrates the interior of the top end of the base (3) and is fixedly connected to the bottom end of the movable seat (8), a servo motor one (6) is fixedly installed on the left side of the movable platform (7), a servo motor three (29) is fixedly installed at the rear end of the base (3), a servo motor two (15) is fixedly installed at the top end of the movable seat (8), a lead screw two (30) is vertically movably connected to the interior of the front end of the movable seat (8), and a threaded sleeve two (31) is threadedly connected to the exterior of the lead screw two (30), the front end of the threaded sleeve two (31) penetrates the interior of the front end of the movable seat (8) and is fixedly connected to the rear end of the movable platform (7).

8. A five-axis machining mechanism for bicycle wheel rims with a circulating cooling system according to claim 1, characterized in that: A mounting bracket (10) is fixedly installed at the top of the mounting cover (4), and a spindle box (11) is provided inside the mounting bracket (10). A machining tool (13) is installed at the bottom of the spindle box (11). Connecting shafts (12) are fixed on both sides of the spindle box (11), and the connecting shafts (12) pass through the interior of both sides of the mounting bracket (10). A servo motor (9) is fixedly installed on the left side of the mounting bracket (10), and the output shaft of the servo motor (9) is fixedly connected to the connecting shaft (12).