High-pressure center water outlet system of machining center

Abstract

The high-pressure center water outlet system of the machining center comprises a cutting mechanism, a cooling mechanism and a driving mechanism, the cutting mechanism comprises a main shaft and a cutter, and the cutter is arranged at the end of the main shaft; the cooling mechanism comprises a water pump, a cooling pipe and a cooling head, the cooling pipe is arranged in the main shaft and the cutter, the cooling head is arranged at the end of the cooling pipe, an outlet of the water pump is communicated with an inlet of the cooling pipe, and an outlet of the cooling pipe is communicated with an inlet of the cooling head; and the driving mechanism is arranged in the main shaft, the driving mechanism is used for driving the cooling head to swing around the axis of the cooling pipe, and the cooling device has the beneficial effect that the driving mechanism enables the cooling head to swing at the end of the cooling pipe. The swing not only can enlarge the spraying range of the cooling liquid, but also can adjust the spraying angle of the cooling liquid, so that the cutting area and the cutting range are better covered, and the cooling effect is improved.

Description

Technical Field

[0001] The present application relates to the field of machining centers, and in particular to a high-pressure central water outlet system for machining centers. Background Art

[0002] In the process of mechanical processing, the effective use of cutting fluid is of great significance to improving processing efficiency, extending tool life and ensuring processing quality. At present, the conventional machining center water outlet system mostly adopts the side water outlet method, which has an unsatisfactory cooling effect in some processing scenarios, especially in deep hole processing and high-precision cutting.

[0003] In the related art, a drilling center water outlet device in a machining center is proposed, including a high-pressure water pump and a connecting rod arranged in a main shaft, a through hole is arranged in the central axial direction of the connecting rod, and the outlet of the high-pressure water pump is connected to the through hole. A mounting hole for installing the connecting rod is arranged in the main shaft, and the mounting hole includes a positioning hole, a first hole and a second hole connected in sequence, the aperture of the positioning hole is larger than the aperture of the first hole, the aperture of the first hole is larger than the aperture of the second hole, and the aperture of the first hole is 0.3mm-0.5mm larger than the aperture of the second hole.

[0004] The above-mentioned related technologies have the following defects: the angle of the through hole is fixed, which, on the one hand, causes the impact position of the coolant to be relatively fixed; on the other hand, causes the impact range of the coolant to be limited, resulting in poor cooling effect. Summary of the invention

[0005] The purpose of this application is to overcome the above technical deficiencies and propose a high-pressure central water outlet system for a machining center to solve the technical problems in the prior art that the coolant impact angle is fixed and the impact range is limited.

[0006] In order to achieve the above technical purpose, the technical solution of the present application provides a high-pressure central water outlet system for a machining center, including a cutting mechanism, wherein the cutting mechanism includes a spindle and a tool, and the tool is arranged at the end of the spindle; A cooling mechanism, the cooling mechanism comprising a water pump, a cooling pipe and a cooling head, the cooling pipe is arranged in the spindle and the tool, the cooling head is arranged at the end of the cooling pipe, the outlet of the water pump is connected to the inlet of the cooling pipe, and the outlet of the cooling pipe is connected to the inlet of the cooling head; and, The driving mechanism is arranged in the main shaft and is used to drive the cooling head to swing around the axis of the cooling tube.

[0007] In some embodiments, the driving mechanism includes a power component and a transmission component, the power component is used to provide power, and the transmission component is used to connect the power component and the cooling head.

[0008] In some embodiments, the middle part of the cooling head is ball-jointed to the end of the cooling tube, the transmission assembly includes a guide rod slidably connected to the main shaft, a guide ball is provided at the end of the guide rod, a guide groove is provided on the upper ring of the cooling head, and the guide ball is slidably connected in the guide groove.

[0009] In some embodiments, the power assembly includes a motor disposed in a main shaft, a driving gear is disposed on the output shaft of the motor, a driven gear ring is coaxially connected to the main shaft and meshed with the driving gear, and the guide rod is disposed on the driven gear ring.

[0010] In some embodiments, the driving gear is provided with a supporting assembly for auxiliary supporting the cooling head.

[0011] In some embodiments, the support assembly includes a telescopic rod with a supporting function disposed on the driving gear, and a supporting ball is disposed at the end of the telescopic rod, and the supporting ball is slidably connected in the guide groove.

[0012] In some embodiments, the telescopic rod includes a first rod body disposed on a driving gear, a second rod body is slidably connected to the first rod body along the length direction of the first rod body, the supporting ball is disposed at the end of the second rod body, a spring is sleeved on the telescopic rod, one end of the spring is connected to the first rod body, and the other end of the spring is connected to the second rod body, and the spring is in an original length state.

[0013] In some embodiments, a sliding sealing pad is provided at the end of the cooling tube, and a side of the sliding sealing pad away from the cooling tube abuts against the outer wall of the cooling head.

[0014] In some embodiments, a filter screen is provided at the inlet of the cooling pipe, an impeller is rotatably connected to the inner side of the filter screen, a brush is rotatably connected to the outer side of the filter screen, and the impeller is connected to the brush.

[0015] In some embodiments, a collection box is provided at the end of the main shaft at the filter screen, and a magnet for absorbing iron filings is provided on the inner wall of the collection box.

[0016] Compared with the prior art, the beneficial effects of the present application include: the driving mechanism causes the cooling head to swing at the end of the cooling pipe. This swing can not only expand the spray range of the coolant, but also adjust the spray angle of the coolant, thereby better covering the cutting area and cutting range, and improving the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the high-pressure central water outlet system provided by this application; Figure 2 This application provides Figure 1 A magnified view of the structure at center A; Figure 3It is a schematic diagram of the overall structure of the cooling head provided by the present application; Figure 4 This application provides Figure 1 A magnified view of the structure at point B.

[0018] Description of reference numerals: 1. Cutting mechanism; 11. Spindle; 12. Tool; 2. Cooling mechanism; 21. Water pump; 22. Cooling pipe; 23. Cooling head; 24. Sealing gasket; 25. Filter; 26. Impeller; 27. Brush; 28. Collecting box; 29. ​​Magnet; 3. Driving mechanism; 31. Power assembly; 311. Motor; 312. Driving gear; 313. Driven gear ring; 32. Transmission assembly; 321. Guide rod; 322. Guide ball; 323. Guide groove; 4. Support assembly; 41. Telescopic rod; 411. First rod body; 412. Second rod body; 413. Spring; 42. Support ball. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0020] The present application provides a high pressure central water outlet system for a machining center, the structure of which is as follows: Figure 1 - Figure 4 As shown, it includes a cutting mechanism 1, a cooling mechanism 2 and a driving mechanism 3.

[0021] The cutting mechanism 1 includes a spindle 11 and a tool 12 , and the tool 12 is disposed at the end of the spindle 11 .

[0022] The cooling mechanism 2 includes a water pump 21, a cooling pipe 22 and a cooling head 23. The cooling pipe 22 is arranged in the spindle 11 and the tool 12, and the cooling head 23 is arranged at the end of the cooling pipe 22. The outlet of the water pump 21 is connected to the inlet of the cooling pipe 22, and the outlet of the cooling pipe 22 is connected to the inlet of the cooling head 23.

[0023] The driving mechanism 3 is disposed in the main shaft 11 , and is used to drive the cooling head 23 to swing around the axis of the cooling tube 22 .

[0024] When in use, the spindle 11 drives the tool 12 to rotate and cut the workpiece. During the cutting process, a large amount of heat and chips will be generated. The water pump 21 draws the coolant from the storage container and provides a certain pressure. Under the action of pressure, the coolant flows into the cooling pipe 22 from the outlet of the water pump 21. The cooling head 23 is located at the end of the cooling pipe 22, and the coolant flows into the cooling head 23 from the outlet of the cooling pipe 22. The cooling head 23 sprays the coolant into the cutting area to cool and rinse the tool 12 and the workpiece. The driving mechanism 3 causes the cooling head 23 to swing at the end of the cooling pipe 22. This swing can expand the spray range of the coolant, better cover the cutting area, and improve the cooling effect.

[0025] In the present application, the driving mechanism 3 causes the cooling head 23 to swing at the end of the cooling tube 22. This swing can not only expand the spray range of the coolant, but also adjust the spray angle of the coolant, thereby better covering the cutting area and cutting range, and improving the cooling effect.

[0026] To drive the cooling head 23 to swing, please refer to Figure 1 In a preferred embodiment, the driving mechanism 3 includes a power assembly 31 and a transmission assembly 32 , wherein the power assembly 31 is used to provide power, and the transmission assembly 32 is used to connect the power assembly 31 and the cooling head 23 .

[0027] When in use, the power assembly 31 and the transmission assembly 32 in the driving mechanism 3 cooperate with each other to transmit power from the power source to the cooling head 23, so that the cooling head 23 can swing at the end of the cooling pipe 22, thereby improving the cooling effect and adaptability of the high-pressure central water outlet system of the machining center.

[0028] In order to transmit the power generated by the power assembly 31, please refer to Figure 4 In a preferred embodiment, the middle part of the cooling head 23 is ball-jointed to the end of the cooling tube 22, the transmission assembly 32 includes a guide rod 321 slidably connected to the main shaft 11, a guide ball 322 is provided at the end of the guide rod 321, a guide groove 323 is provided on the upper ring of the cooling head 23, and the guide ball 322 is slidably connected in the guide groove 323.

[0029] When in use, when the driving mechanism 3 is not started, the cooling head 23 is hinged to the end of the cooling tube 22 through the middle ball, and is in a relatively stable state. The guide rod 321 is located at a certain position in the main shaft 11, and the guide ball 322 is in an initial contact state or a slight contact state with the guide groove 323 on the cooling head 23. When it is necessary to drive the cooling head 23 to swing, the power assembly 31 starts to work and generates power output. This power is transmitted to the transmission assembly 32, pushing the guide rod 321 to slide in the main shaft 11. The guide ball 322 at the end of the guide rod 321 slides in the guide groove 323 on the cooling head 23 as the guide rod 321 slides. The cooperation between the guide ball 322 and the guide groove 323 plays a key role in converting the linear motion of the guide rod 321 into the swinging motion of the cooling head 23. When the guide ball 322 slides in the guide groove 323, since the middle ball of the cooling head 23 is hinged to the end of the cooling tube 22, the movement trajectory of the guide ball 322 will force the cooling head 23 to swing around the ball hinge point. The swing of the cooling head 23 can expand the spray range of the coolant, so that the coolant can cover the cutting area more evenly, thereby improving the cooling effect.

[0030] In order to provide power for the swing of the cooling head 23, please refer to Figure 4 In a preferred embodiment, the power assembly 31 includes a motor 311 disposed in the main shaft 11, a driving gear 312 is disposed on the output shaft of the motor 311, a driven gear ring 313 meshing with the driving gear 312 is coaxially connected to the main shaft 11, and the guide rod 321 is disposed on the driven gear ring 313.

[0031] When in use, when it is necessary to drive the cooling head 23 to swing, the motor 311 starts to run. The output shaft of the motor 311 rotates, driving the driving gear 312 to rotate. The driving gear 312 meshes with the driven gear ring 313. When the driving gear 312 rotates, the power is transmitted to the driven gear ring 313 through the meshing action between the gears. The driven gear ring 313 rotates coaxially in the main shaft 11. Since the guide rod 321 is arranged on the driven gear ring 313, when the driven gear ring 313 rotates, the guide rod 321 also moves accordingly. The movement of the guide rod 321 in the main shaft 11 interacts with the guide groove 323 on the cooling head 23 through the guide ball 322 at its end, and transmits the movement to the cooling head 23. Under the action of the guide ball 322 and the guide groove 323, the cooling head 23 swings around the ball hinge point between its middle and the end of the cooling tube 22.

[0032] In order to improve the stability of the swing of the cooling head 23, please refer to Figure 4 In a preferred embodiment, the driving gear 312 is provided with a supporting assembly 4 for auxiliary supporting the cooling head 23 .

[0033] When in use, the support assembly 4 provides auxiliary support for the cooling head 23 by setting a specific structure on the driving gear 312, thereby improving the stability and reliability of the cooling head 23 during the swinging process, and further improving the cooling effect and processing performance of the high-pressure central water outlet system of the machining center.

[0034] To assist in supporting the cooling head 23, please refer to Figure 4 In a preferred embodiment, the support assembly 4 includes a telescopic rod 41 with a supporting function arranged on the driving gear 312, and a supporting ball is provided at the end of the telescopic rod 41, and the supporting ball is slidably connected in the guide groove 323.

[0035] When in use, the telescopic rod 41 has a certain rigidity and supporting function, and can provide additional supporting force for the cooling head 23. When the support ball contacts the guide groove 323, the telescopic rod 41 transmits the supporting force to the cooling head 23 through the support ball, helping the cooling head 23 to resist external forces such as cutting force and reaction force of coolant, and maintain a stable swinging state.

[0036] In order to flexibly support the cooling head 23, please refer to Figure 4 In a preferred embodiment, the telescopic rod 41 includes a first rod body 411 disposed on the driving gear 312, and the first rod body 411 is slidably connected to the second rod body 412 along the length direction of the first rod body 411, and the support ball is disposed at the end of the second rod body 412. A spring 413 is sleeved on the telescopic rod 41, and one end of the spring 413 is connected to the first rod body 411, and the other end of the spring 413 is connected to the second rod body 412, and the spring 413 is in an original length state.

[0037] When in use, as the cooling head 23 swings, the second rod 412 slides on the first rod 411 along its length direction. When the cooling head 23 swings in a certain direction, a force may be generated on the support ball, and this force is transmitted to the second rod 412 through the support ball, so that the second rod 412 moves relative to the first rod 411. The spring 413 is connected between the first rod 411 and the second rod 412. When the second rod 412 slides, the spring 413 will be stretched or compressed. The elastic force of the spring 413 will generate a reaction force on the second rod 412, so that the second rod 412 always has a tendency to return to the initial position. The existence of the spring 413 plays a buffering role, reducing the impact of the cooling head 23 on the telescopic rod 41 when it swings. At the same time, the elastic force of the spring 413 also enables the support ball to fit tightly in the guide groove 323, providing a stable supporting force for the cooling head 23. Through the cooperation of the telescopic rod 41 and the spring 413, as well as the action of the support ball and the guide groove 323, the support assembly 4 can effectively improve the stability of the cooling head 23 during the swinging process, thereby improving the overall stability and reliability of the high-pressure central water outlet system of the machining center, ensuring that the coolant can be accurately sprayed into the cutting area, thereby improving the cooling effect and machining quality.

[0038] In order to improve the airtightness of the cooling tube 22 and the cooling head 23, please refer to Figure 4 In a preferred embodiment, a sliding sealing pad 24 is provided at the end of the cooling tube 22 , and the side of the sliding sealing pad 24 away from the cooling tube 22 abuts against the outer wall of the cooling head 23 .

[0039] When in use, after the cooling system is started, the coolant flows through the cooling pipe 22 under the pressure of the water pump 21. Since the cooling pipe 22 is connected to the cooling head 23, the coolant needs to enter the cooling head 23 from the cooling pipe 22, and then spray out from the cooling head 23 to cool the cutting area. The presence of the sliding seal 24 ensures that the coolant will not leak out from the connection between the cooling pipe 22 and the cooling head 23 during the flow process. The sliding seal 24 is usually made of elastic and wear-resistant materials, which can adapt to the relative movement between the cooling head 23 and the cooling pipe 22. The side of the sliding seal 24 away from the cooling pipe 22 is tightly abutted against the outer wall of the cooling head 23 to form a sealing interface. Due to the elasticity of the seal 24, it can compensate for the dimensional deviation and surface unevenness between the cooling head 23 and the cooling pipe 22 to a certain extent, ensuring the reliability of the seal. When the cooling head 23 swings under the action of the driving mechanism 3, relative sliding occurs between the sliding seal 24 and the outer wall of the cooling head 23. The material properties of the sealing gasket 24 enable it to maintain good sealing performance during the sliding process to prevent coolant leakage.

[0040] To improve the cleanliness of the coolant, please refer to Figure 2In a preferred embodiment, a filter screen 25 is provided at the inlet of the cooling pipe 22 , an impeller 26 is rotatably connected to the inner side of the filter screen 25 , a brush 27 is rotatably connected to the outer side of the filter screen 25 , and the impeller 26 is connected to the brush 27 .

[0041] When in use, after the cooling system is started, the coolant flows to the inlet of the cooling pipe 22 under the action of the water pump 21. The coolant first contacts the filter 25. The main function of the filter 25 is to filter impurities in the coolant, such as chips, dust, etc. If these impurities enter the cooling system, they may block the cooling pipe 22, the cooling head 23 or damage the water pump 21 and other components, affecting the normal operation of the cooling system. When the coolant flows through the filter 25, the flow of the coolant drives the impeller 26 inside the filter 25 to rotate. The blade design of the impeller 26 enables the flow of the coolant to generate sufficient power to drive the impeller 26 to rotate. The rotation of the impeller 26 transmits power to the brush 27 outside the filter 25 through the connecting mechanism. The brush 27 rotates under the drive of the impeller 26 to clean the outer surface of the filter 25. The bristles of the brush 27 continuously brush the filter 25 to remove impurities attached to the filter 25 and prevent the filter 25 from being blocked. As the cooling system operates, the brush 27 continues to rotate to keep the filter screen 25 clean. This ensures that the filter screen 25 always has a good filtering effect and does not reduce the flow and pressure of the coolant due to the accumulation of impurities.

[0042] To collect and clean the iron filings, please refer to Figure 2 In a preferred embodiment, a collecting box 28 is provided at the end of the main shaft 11 at the filter 25, and a magnet 29 for absorbing iron filings is provided on the inner wall of the collecting box 28.

[0043] When in use, a large amount of iron filings will be generated during the cutting process. These iron filings may flow with the coolant and be intercepted by the filter 25. Since the iron filings are magnetic, when they approach the collection box 28, they will be attracted by the magnet 29 on the inner wall of the collection box 28. The magnet 29 on the inner wall of the collection box 28 generates a strong magnetic field, which attracts the iron filings. Under the action of the magnetic field, the iron filings are adsorbed onto the inner wall of the collection box 28 and separated from the coolant. As the coolant continues to flow, more iron filings are intercepted by the filter 25 and adsorbed by the magnet 29. This can effectively prevent the iron filings from entering the cooling system again, avoiding damage to components such as the cooling pipe 22, the cooling head 23, and the water pump 21. The iron filings adsorbed on the inner wall of the collection box 28 will gradually accumulate. The collection box 28 plays the role of collecting iron filings, so that the iron filings will not flow freely in the cooling system, reducing the pollution to the processing environment. When the iron filings in the collection box 28 accumulate to a certain extent, they need to be cleaned. The collecting box 28 can be disassembled from the end of the main shaft 11, the iron filings are poured out, and the collecting box 28 and the magnet 29 are cleaned. The cleaned collecting box 28 can be reinstalled on the end of the main shaft 11 to continue to play the role of collecting iron filings.

[0044] In order to better understand this application, the following Figure 1 - Figure 4 The working principle of a high-pressure central water outlet system of a machining center in the technical solution of the present application is described in detail: the spindle 11 drives the tool 12 to rotate and cut the workpiece. During the cutting process, a large amount of heat and chips will be generated. The water pump 21 extracts the coolant from the storage container and provides a certain pressure. Under the action of pressure, the coolant flows from the outlet of the water pump 21 into the cooling pipe 22. The cooling head 23 is located at the end of the cooling pipe 22, and the coolant flows from the outlet of the cooling pipe 22 into the cooling head 23. The cooling head 23 sprays the coolant into the cutting area to cool and rinse the tool 12 and the workpiece. The driving mechanism 3 causes the cooling head 23 to swing at the end of the cooling pipe 22. This swing can expand the spray range of the coolant, better cover the cutting area, and improve the cooling effect.

[0045] The specific implementation methods of the present application described above do not constitute a limitation on the protection scope of the present application. Any other corresponding changes and modifications made according to the technical concept of the present application should be included in the protection scope of the claims of the present application.

Claims

1. A high pressure central water outlet system for a machining center, characterized in that: include: A cutting mechanism, the cutting mechanism comprising a spindle and a tool, the tool being arranged at the end of the spindle; A cooling mechanism, the cooling mechanism comprising a water pump, a cooling pipe and a cooling head, the cooling pipe is arranged in the spindle and the tool, the cooling head is arranged at the end of the cooling pipe, the outlet of the water pump is connected to the inlet of the cooling pipe, and the outlet of the cooling pipe is connected to the inlet of the cooling head; and, The driving mechanism is arranged in the main shaft, and the driving mechanism is used to drive the cooling head to swing around the axis of the cooling tube.

2. A high pressure central water outlet system for a machining center according to claim 1, characterized in that: The driving mechanism includes a power assembly and a transmission assembly, wherein the power assembly is used to provide power, and the transmission assembly is used to connect the power assembly and the cooling head.

3. A high pressure central water outlet system for a machining center according to claim 2, characterized in that: The middle part of the cooling head is ball-jointed to the end of the cooling tube, the transmission assembly comprises a guide rod slidably connected to the main shaft, a guide ball is arranged at the end of the guide rod, a guide groove is arranged on the upper ring of the cooling head, and the guide ball is slidably connected in the guide groove.

4. A high pressure central water outlet system for a machining center according to claim 3, characterized in that: The power assembly comprises a motor arranged in a main shaft, a driving gear is arranged on the output shaft of the motor, a driven gear ring meshing with the driving gear is coaxially rotatably connected in the main shaft, and the guide rod is arranged on the driven gear ring.

5. A high pressure central water outlet system for a machining center according to claim 4, characterized in that: The driving gear is provided with a supporting assembly for auxiliary supporting the cooling head.

6. A high pressure central water outlet system for a machining center according to claim 5, characterized in that: The support assembly comprises a telescopic rod with a supporting function arranged on the driving gear, a supporting ball is arranged at the end of the telescopic rod, and the supporting ball is slidably connected in the guide groove.

7. A high pressure central water outlet system for a machining center according to claim 6, characterized in that: The telescopic rod includes a first rod body arranged on the driving gear, a second rod body is slidably connected to the first rod body along the length direction of the first rod body, the supporting ball is arranged at the end of the second rod body, a spring is sleeved on the telescopic rod, one end of the spring is connected to the first rod body, and the other end of the spring is connected to the second rod body, and the spring is in an original length state.

8. The high pressure central water outlet system for a machining center according to claim 1, characterized in that: A sliding sealing pad is provided at the end of the cooling pipe, and a side of the sliding sealing pad away from the cooling pipe abuts against the outer wall of the cooling head.

9. A high pressure central water outlet system for a machining center according to claim 8, characterized in that: A filter screen is provided at the inlet of the cooling pipe, an impeller is rotatably connected to the inner side of the filter screen, a brush is rotatably connected to the outer side of the filter screen, and the impeller is connected to the brush.

10. A high pressure central water outlet system for a machining center according to claim 9, characterized in that: A collecting box is provided at the end of the main shaft at the filter screen, and a magnet for absorbing iron filings is provided on the inner wall of the collecting box.

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