Double-path air cooling and lubricating wheel hub fine turning knife

Abstract

The application discloses a double-path air cooling and lubricating wheel hub fine turning sharp tool, which comprises a fine turning sharp tool body, a tool holder is integrally formed at the front end of the fine turning sharp tool body, a tool head is positioned at the front end of the tool holder, a side cooling seat is integrally formed at the side of the tool holder, a second high-pressure cold gas outlet is formed at the front end of the side cooling seat, a cooling liquid outlet and a first high-pressure cold gas outlet are formed at the top front side of the tool holder, and a cooling liquid inlet and a high-pressure gas inlet are formed at the side of the front end of the fine turning sharp tool body. The double-path air cooling and lubricating wheel hub fine turning sharp tool adopts an integrated die-casting structure matched with a quick-connection sealing assembly, is convenient to assemble, has good sealing performance, and can realize real-time regulation and control of cooling and chip removal conditions by relying on temperature, pressure and gas multi-sensor linkage control, so that the fine turning sharp tool can adapt to wheel hub dry and quasi-dry fine turning machining requirements, effectively prolong the service life of the tool and improve the machining surface quality of workpieces, and has compact overall structure, stable operation and high practicability.

Description

Technical Field

[0001] This invention relates to the field of mechanical cutting tool technology, and in particular to a dual-path air-cooled lubricated wheel hub precision turning tip tool. Background Technology

[0002] Wheel hubs are crucial load-bearing components of vehicles, and their precision machining demands extremely high standards for surface finish, dimensional accuracy, and metallurgical integrity. Currently, wheel hub precision turning mostly employs traditional indexable tools, with conventional cooling methods relying on cutting fluid spraying. However, with continuous technological advancements, the requirements for precision turning tools for wheel hubs are becoming increasingly stringent.

[0003] Existing wheel hub precision turning tools have certain drawbacks, exhibiting significant shortcomings under dry and semi-dry machining conditions: heat in the cutting zone cannot be dissipated quickly, the tool tip is prone to high-temperature wear, and the workpiece surface suffers from oxidation, ablation, and discoloration due to high temperatures; simultaneously, aluminum chips generated during cutting tend to accumulate and entangle in the cutting zone, repeatedly scraping the workpiece surface, causing machining defects, and significantly reducing the yield rate and tool life. Traditional tools lack directional cooling and active chip removal structures, as well as real-time monitoring and adaptive control functions, making it difficult to meet the current requirements of high-precision and high-cleanliness wheel hub precision turning. Therefore, a dual-path air-cooled lubricated wheel hub precision turning tool is proposed. Summary of the Invention

[0004] Technical problem solved: In view of the problems of poor cooling effect, weak chip removal capacity, easy high temperature damage to workpiece, easy chip scratching of surface and lack of intelligent working condition control in existing wheel hub precision turning tools, this invention provides a dual-path air-cooled lubricated wheel hub precision turning tool, which has the advantages of dual-path partitioned air cooling, active and powerful chip removal, real-time working condition detection and reliable sealed assembly, effectively solving many drawbacks of traditional tools.

[0005] Technical Solution: To achieve the above objectives, the technical solution adopted by this invention is as follows: a dual-path air-cooled lubricated wheel hub precision turning tool, comprising a precision turning tool body, a tool holder integrally formed at the front end of the precision turning tool body, a tool head positioned at the front end of the tool holder, a side cooling seat integrally formed on the side of the tool holder, a second high-pressure cold air outlet at the front end of the side cooling seat, a coolant outlet and a first high-pressure cold air outlet at the front end of the tool holder, a coolant inlet and a high-pressure air inlet at the front side of the precision turning tool body, a heat exchange and cooling mechanism internally engaged in the precision turning tool body, a quick-connect locking and positioning structure positioned at the rear end of the heat exchange and cooling mechanism, a fixing pin positioned between the tool head and the tool holder, and a detection and control mechanism provided on the precision turning tool body.

[0006] As a preferred technical solution of this application, the heat exchange and cooling mechanism is internally provided with an evaporator, a compressor, an expansion valve and a condenser, a condensation port is provided between the evaporator and the condenser, an insulation structure is positioned on the inner surface of the heat exchange and cooling mechanism, and the compressor is connected to the evaporator.

[0007] As a preferred technical solution of this application, a retaining seat is positioned on the inner side of the quick-connect locking and positioning structure. The retaining seat is located on the outer ring of the heat exchange and cooling mechanism. A snap-fit ​​assembly is positioned on the outer side of the retaining seat. A spring assembly, a damper, a spring support, and a ball are arranged between the expansion valve and the snap-fit ​​assembly. A retaining element is positioned at the end of the snap-fit ​​assembly. A sealing gasket is positioned on the outer ring of the retaining element. A sealing ring is positioned on the outer ring of the quick-connect locking and positioning structure. The spring assembly and the damper are both located between two sets of spring supports. The ball is arranged between the snap-fit ​​assembly and the damper.

[0008] As a preferred technical solution of this application, the detection and control mechanism is provided with a pressure sensor, a temperature sensor, a data communicator, a central processing unit, a gas sensor, a display, and a controller. The pressure sensor, temperature sensor, and gas sensor are all connected to the data communicator, the data communicator is connected to the central processing unit, and the central processing unit is connected to the display and the controller.

[0009] As a preferred technical solution of this application, the precision turning tool body and the tool holder are integrally formed by die casting, the tool head is assembled on the front end of the tool holder by a fixing pin, the coolant inlet and coolant outlet are connected, the high-pressure gas inlet is connected to the first high-pressure cold gas outlet and the second high-pressure cold gas outlet, and the heat exchange cooling mechanism is locked inside the precision turning tool body by a quick-connect locking positioning structure for sealing.

[0010] As a preferred technical solution of this application, the heat exchange cooling mechanism and the insulation structure are integrally formed by molding, the condenser is connected to the evaporator through the condensation port, and the evaporator is positioned with respect to the compressor and the expansion valve.

[0011] As a preferred technical solution of this application, the buckle assembly moves elastically on the outer ring of the buckle seat through a ball, a spring assembly, a damper, and a spring support. The buckle on the buckle assembly engages with the corresponding groove on the precision machining tool body and is sealed by a sealing gasket. The outer ring of the quick-connect buckling positioning structure is sealed with the precision machining tool body through a sealing ring.

[0012] As a preferred technical solution of this application, the output terminals of the temperature sensor, pressure sensor and gas sensor are all electrically connected to the input terminal of the data communicator through a data communicator, and the output terminal of the central processing unit is electrically connected to the input terminal of the display and the controller.

[0013] Beneficial effects: Compared with the prior art, the present invention provides a dual-path air-cooled lubricated wheel hub precision turning tool, which has the following beneficial effects: The dual-path air-cooled lubricated wheel hub precision turning tool adopts an integrated die-cast structure with quick-connect sealing components, which is convenient to assemble and has good sealing performance. At the same time, relying on the linkage control of multiple sensors of temperature, pressure and gas, the cooling and chip removal conditions can be adjusted in real time, which is suitable for the dry and semi-dry precision turning requirements of wheel hubs, effectively improving the tool life and workpiece surface quality. The overall structure is compact, the operation is stable, and the practicality is strong.

[0014] Dual-path zoned air cooling for excellent cooling effect: This invention features two independent air cooling channels, one above and one below. The upper low-temperature compressed airflow is ejected from the first high-pressure cold air outlet, forming a dynamic low-temperature gas film at the cutting interface between the tool and the workpiece. This rapidly dissipates localized high temperatures in the cutting zone, effectively suppressing thermal wear of the tool edge and preventing oxidation, ablation, and microscopic damage to the wheel hub workpiece due to high temperatures, thus ensuring the metallurgical integrity of the workpiece's machined surface. Combined with a coolant circulation loop, it further enhances heat dissipation capacity and is suitable for various machining scenarios, including dry and semi-dry types.

[0015] High-pressure directional chip removal eliminates machining defects: After the high-pressure airflow at the bottom is diverted through the high-pressure air inlet, it forms a high-momentum directional jet from the second high-pressure cold air outlet. This jet strongly impacts, peels off, and blows away aluminum chips, preventing chips from accumulating and entangled in the cutting zone. This avoids secondary scratches on the workpiece surface by chips from the source, and improves the cleanliness and smoothness of the wheel hub machining surface.

[0016] The structure is easy to assemble and has reliable sealing performance: the precision-machined tip body and the tool holder are integrally die-cast, resulting in high structural strength; the heat exchange and cooling mechanism is quickly assembled and disassembled through a quick-connect snap-fit ​​positioning structure, and is equipped with a double sealing structure of sealing gasket and sealing ring to prevent airflow and media leakage; the snap-fit ​​assembly has a built-in spring and damping structure, which buffers and reduces shock after assembly, resulting in stronger operational stability.

[0017] Intelligent monitoring and control with a high degree of automation: Equipped with temperature sensors, pressure sensors, and gas sensors, it can collect real-time data on temperature, air pressure, and gas environment in the cutting zone. After analysis by the central processor, it automatically adjusts the air cooling parameters. The data can be viewed intuitively on the display, realizing intelligent control of the processing conditions and reducing the difficulty of manual debugging.

[0018] The overall tool structure is compact and rationally designed, taking into account multiple functions such as cooling, chip removal, sealing and intelligent control, which significantly extends the tool life, improves the precision of wheel hub finishing and the quality of finished products, and has a wide range of applications. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the dual-path air-cooled lubricated wheel hub precision turning tool of the present invention.

[0020] Figure 2This is a schematic diagram of the structure of the dual-path air-cooled lubricated wheel hub precision turning tool of the present invention, viewed from the side.

[0021] Figure 3 This is a top view schematic diagram of the dual-path air-cooled lubricated wheel hub precision turning tool of the present invention.

[0022] Figure 4 This is a schematic diagram of the tool holder in the dual-path air-cooled lubricated wheel hub precision turning tool of the present invention.

[0023] Figure 5 This is a schematic diagram of the heat exchange and cooling mechanism in the dual-path air-cooled lubricated wheel hub precision turning tool of the present invention.

[0024] Figure 6 This is a structural schematic diagram of point A in the dual-path air-cooled lubricated wheel hub precision turning tool of the present invention.

[0025] Figure 7 This is a schematic diagram of the detection and control mechanism in the dual-path air-cooled lubricated wheel hub precision turning tool of the present invention.

[0026] In the diagram: 1. Precision turning tool body; 2. Coolant inlet; 3. Coolant outlet; 4. First high-pressure cold air outlet; 5. Fixing pin; 6. Tool head; 7. Second high-pressure cold air outlet; 8. Side cooling seat; 9. Tool holder; 10. High-pressure gas inlet; 11. Quick-connect locking and positioning structure; 12. Detection and control mechanism; 13. Heat exchange and cooling mechanism; 14. Evaporator; 15. Snap-fit ​​assembly; 16. Compressor; 17. Insulation structure; 18. Expansion valve; 19. Condensate port; 20. Condenser; 21. Sealing gasket; 22. Clamping element; 23. Ball component; 24. Spring assembly; 25. Spring support; 26. Damper; 27. Sealing ring; 28. Clamping seat; 29. ​​Temperature sensor; 30. Pressure sensor; 31. Data communicator; 32. Central processing unit; 33. Gas sensor; 34. Display; 35. Controller. Detailed Implementation

[0027] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are some embodiments of the present invention, but not all embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.

[0028] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] like Figures 1-7 As shown, the dual-path air-cooled lubricated wheel hub precision turning tool disclosed in this invention has a main body of precision turning tool body 1, and a tool holder 9 formed by die casting at the front end of precision turning tool body 1. The tool holder 9 is fixed by locking the tool head 6 at the front end with a fixing pin 5, and the tool head 6 is simple and convenient to disassemble and replace. The tool holder 9 has an integrally formed side cooling seat 8, with a second high-pressure cold air outlet 7 at the front end of the side cooling seat 8. The top front of the tool holder 9 has a coolant outlet 3 and a first high-pressure cold air outlet 4. The front end of the precision turning tool body 1 has a coolant inlet 2 and a high-pressure air inlet 10, respectively. The coolant inlet 2 and the coolant outlet 3 are directly connected, and the high-pressure air inlet 10 is simultaneously connected to the first high-pressure cold air outlet 4 and the second high-pressure cold air outlet 7, forming two independent cold air output channels. It adopts an integrated die-cast structure with quick-connect sealing components, which is convenient to assemble and has good sealing performance. At the same time, relying on the linkage control of multiple sensors of temperature, pressure and gas, the cooling and chip removal conditions can be adjusted in real time, which is suitable for the dry and semi-dry precision turning requirements of wheel hubs, effectively improving the tool life and workpiece surface quality. The overall structure is compact, stable in operation, and highly practical.

[0031] The heat exchange and cooling mechanism 13 is internally fitted into the main body 1 of the precision machining tool. A quick-connect locking and positioning structure 11 is mounted at the rear end of the heat exchange and cooling mechanism 13 for rapid disassembly and sealing. The heat exchange and cooling mechanism 13 integrates an evaporator 14, a compressor 16, an expansion valve 18, and a condenser 20. The evaporator 14 and condenser 20 are connected via a condensation port 19. An integrally molded insulation structure 17 is formed on the inner wall of the heat exchange and cooling mechanism 13 to reduce cooling loss.

[0032] The quick-connect positioning structure 11 has a fixed mounting base 28 on its inner side, which is fitted onto the outer side of the heat exchange and cooling mechanism 13. A snap-fit ​​assembly 15 is movably mounted on the outside of the mounting base 28. Between the snap-fit ​​assembly 15 and the expansion valve 18, a ball component 23, a spring assembly 24, a spring support 25, and a damper 26 are arranged, relying on the elastic structure to achieve flexible locking and buffering of the snap-fit ​​assembly 15. The snap-fit ​​component 22 at the end of the snap-fit ​​assembly 15 is inserted into the groove of the precision machining tool body 1. A sealing gasket 21 is fitted onto the outer side of the snap-fit ​​component 22, and a sealing ring 27 is added to the outer ring of the quick-connect positioning structure 11, forming a double-sealing structure to effectively prevent leakage of cold air and coolant.

[0033] The precision machining tool body 1 is equipped with a detection and control mechanism 12 on its outer side. The detection and control mechanism 12 consists of a temperature sensor 29, a pressure sensor 30, a gas sensor 33, a data communicator 31, a central processing unit 32, a display 34, and a controller 35. The three types of sensors collect real-time data on the temperature, gas pressure, and ambient gas in the cutting area. The signals are transmitted to the central processing unit 32 via the data communicator 31. The central processing unit 32 sends the data to the display 34 for real-time display and sends instructions to the controller 35 to automatically adjust parameters such as cooling gas pressure and flow rate, thereby achieving intelligent control.

[0034] Working principle When this tool is used for dry / quasi-dry finishing of wheel hubs, external compressed cold air enters through the high-pressure air inlet 10 and is cooled by the heat exchange cooling mechanism 13 before being divided into two paths: one path of low-temperature cold air is ejected from the first high-pressure cold air outlet 4, forming a low-temperature gas film on the cutting contact surface between the tool head 6 and the wheel hub workpiece, continuously carrying away the high temperature of cutting, protecting the cutting edge of the tool head, and preventing high-temperature oxidation and ablation of the workpiece surface; the other path of high-pressure cold air forms a directional high-speed jet from the second high-pressure cold air outlet 7, continuously blowing away the aluminum chips generated during cutting, preventing chip accumulation and entanglement that scratches the workpiece.

[0035] Meanwhile, the cooling medium flows in through the coolant inlet 2 and out through the coolant outlet 3, assisting in the heat dissipation of the tool holder 9 and the tool head 6. During the machining process, the temperature sensor 29, pressure sensor 30, and gas sensor 33 monitor the on-site working conditions in real time. After the data is analyzed by the intelligent module, the cooling output state is automatically adjusted. The entire set of equipment relies on the quick-connect locking positioning structure 11 and the multiple sealing structure to ensure operational stability, and the integrated die-cast body ensures the overall structural strength, ultimately achieving high-precision and high-cleanliness wheel hub precision machining.

[0036] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. 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 merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A dual-path air-cooled lubricated wheel hub precision turning tool, comprising a precision turning tool body (1), characterized in that: The front end of the precision turning tool body (1) is integrally formed with a tool holder (9), the front end of the tool holder (9) is positioned with a cutting head (6), the side of the tool holder (9) is integrally formed with a side cooling seat (8), the front end of the side cooling seat (8) is provided with a second high-pressure cold air outlet (7), the front side of the top of the tool holder (9) is provided with a coolant outlet (3) and a first high-pressure cold air outlet (4), the front side of the precision turning tool body (1) is provided with a coolant inlet (2) and a high-pressure air inlet (10), the interior of the precision turning tool body (1) is fitted with a heat exchange cooling mechanism (13), the rear end of the heat exchange cooling mechanism (13) is positioned with a quick-connect locking positioning structure (11), the cutting head (6) and the tool holder (9) are positioned with a fixing pin (5), and the precision turning tool body (1) is provided with a detection and control mechanism (12).

2. The dual-path air-cooled lubricated wheel hub precision turning tool according to claim 1, characterized in that: The heat exchange and cooling mechanism (13) is internally provided with an evaporator (14), a compressor (16), an expansion valve (18) and a condenser (20). A condensation port (19) is provided between the evaporator (14) and the condenser (20). An insulation structure (17) is positioned on the inner surface of the heat exchange and cooling mechanism (13). The compressor (16) is connected to the evaporator (14).

3. The dual-path air-cooled lubricated wheel hub precision turning tool according to claim 1, characterized in that: The quick-connect locking and positioning structure (11) has a locking seat (28) positioned on its inner side. The locking seat (28) is located on the outer ring of the heat exchange and cooling mechanism (13). The locking seat (28) has a locking assembly (15) positioned on its outer side. The expansion valve (18) and the locking assembly (15) are provided with a spring assembly (24), a damper (26), a spring support (25) and a ball (23). The locking assembly (15) has a locking piece (22) positioned at its end. The locking piece (22) has a sealing gasket (21) positioned on its outer ring. The quick-connect locking and positioning structure (11) has a sealing ring (27) positioned on its outer ring. The spring assembly (24) and the damper (26) are both located between two sets of spring supports (25). The ball (23) is located between the locking assembly (15) and the damper (26).

4. The dual-path air-cooled lubricated wheel hub precision turning tool according to claim 1, characterized in that: The detection and control mechanism (12) is equipped with a pressure sensor (30), a temperature sensor (29), a data communicator (31), a central processing unit (32), a gas sensor (33), a display (34), and a controller (35). The pressure sensor (30), temperature sensor (29), and gas sensor (33) are all connected to the data communicator (31). The data communicator (31) is connected to the central processing unit (32). The central processing unit (32) is connected to the display (34) and the controller (35).

5. The dual-path air-cooled lubricated wheel hub precision turning tool according to claim 1, characterized in that: The precision turning tool body (1) and the tool holder (9) are integrally formed by die casting. The tool head (6) is assembled on the front end of the tool holder (9) by fixing pin (5). The coolant inlet (2) and the coolant outlet (3) are connected. The high-pressure gas inlet (10) is connected to the first high-pressure cold gas outlet (4) and the second high-pressure cold gas outlet (7). The heat exchange cooling mechanism (13) is locked inside the precision turning tool body (1) by quick-connect locking positioning structure (11) for sealing.

6. The dual-path air-cooled lubricated wheel hub precision turning tool according to claim 2, characterized in that: The heat exchange cooling mechanism (13) and the insulation structure (17) are integrally formed by molding. The condenser (20) is connected to the evaporator (14) through the condenser port (19). The evaporator (14) is positioned with the compressor (16) and the expansion valve (18).

7. The dual-path air-cooled lubricated wheel hub precision turning tool according to claim 3, characterized in that: The buckle assembly (15) moves elastically on the outer ring of the buckle seat (28) via the ball (23), spring assembly (24), damper (26), and spring support (25). The buckle (22) on the buckle assembly (15) engages with the corresponding groove on the precision turning tool body (1) and is sealed by the sealing gasket (21). The outer ring of the quick-connect buckle positioning structure (11) is sealed with the precision turning tool body (1) by the sealing ring (27).

8. The dual-path air-cooled lubricated wheel hub precision turning tool according to claim 4, characterized in that: The output terminals of the temperature sensor (29), pressure sensor (30) and gas sensor (33) are all electrically connected to the input terminal of the data communicator (31) through the data communicator (31), and the output terminal of the central processing unit (32) is electrically connected to the input terminal of the display (34) and the controller (35).

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