Numerical control screw rotor machining milling machine

Abstract

The invention relates to a numerical control screw rotor machining milling machine which comprises a base. The clamping assembly is arranged on the base; the fixed seat is arranged on the base in a sliding manner; the first pushing assembly is arranged on the base and is connected with the fixed seat; the roller is rotationally arranged on the fixed seat; the first driving assembly is arranged on the fixed seat and is connected with the roller; the milling assembly comprises a tool apron, a first rotating shaft and a milling cutter; the transmission assembly comprises a first motor, a connecting shaft, a first helical bevel gear, a second helical bevel gear, a second rotating shaft, a third rotating shaft, a first helical gear, a second helical gear, a third helical gear and a fourth helical gear; the cooling pipe is arranged in the roller and the tool apron; through multi-group transmission of the two groups of helical bevel gears and the four groups of helical gears, the transmission structure of the milling cutter can be more compact, so that the size of the cutter holder is reduced, the integration level is higher, the rotation amplitude of the cutter holder is increased, the flexibility and applicability of the device are enhanced, and the practicability is high.

Description

Technical Field

[0001] The present application relates to the technical field of screw rotor processing, and in particular to a CNC screw rotor processing milling machine. Background Art

[0002] Currently, the screw rotor, as the core component of a screw compressor, has a profile design and processing technology that directly impacts the compressor's performance and efficiency. With today's rapidly advancing technology, market expectations for product quality are constantly rising. The iteration cycle for screw rotors is shortening, and precision requirements are becoming increasingly stringent, posing a severe challenge to traditional processing methods.

[0003] In existing technology, the shaping of screw rotors primarily relies on milling the blanks using milling machines. Traditional milling machines use a fixture to secure the blanks, then use an angled milling cutter for machining. However, these machines typically use a worm gear to drive the cutter. While this provides high precision, it increases installation complexity, maintenance costs, and operational difficulty. Furthermore, the worm gear drive mechanism increases the size of the cutterholder, restricting the range of motion of the milling cutter, reducing machining flexibility and applicability, and making it inconvenient to use.

[0004] In view of the above problems, a CNC screw rotor processing milling machine is now designed. Summary of the Invention

[0005] The embodiment of the present application provides a CNC screw rotor processing milling machine to solve the problems in the related art that general milling machines are complicated to install, the tool holder is large in size, which limits the range of movement of the milling cutter, and has poor flexibility and applicability.

[0006] In a first aspect, a CNC screw rotor machining milling machine is provided, comprising:

[0007] base;

[0008] A clamping assembly, which is provided on the base and is used to clamp and fix the screw rotor;

[0009] A fixed seat, which is slidably arranged on the base;

[0010] a first pushing assembly, which is disposed on the base and connected to the fixing seat to drive the fixing seat toward or away from the clamping assembly;

[0011] A drum, which is rotatably mounted on a fixed seat;

[0012] a first driving assembly, which is disposed on the fixed seat and connected to the drum to drive the drum to rotate;

[0013] The milling assembly includes a cutter seat, a first rotating shaft, and a milling cutter. The cutter seat is provided on a side of the drum close to the clamping assembly. The first rotating shaft is rotatably provided on the cutter seat. The milling cutter sleeve is provided on the first rotating shaft.

[0014] The transmission assembly includes a first motor, a connecting shaft, a first helical bevel gear, a second helical bevel gear, a second rotating shaft, a third rotating shaft, a first helical gear, a second helical gear, a third helical gear and a fourth helical gear. The connecting shaft passes through the drum and is rotatably connected to the drum. The first motor is provided on a fixed seat and connected to one end of the connecting shaft. The first helical bevel gear is sleeved on the connecting shaft and fixedly connected to the first helical bevel gear. The first helical bevel gear is located in a cutter seat. The second rotating shaft and the third rotating shaft are both rotatably arranged in the cutter seat. The second helical bevel gear and the first helical gear are both sleeved in the first The second helical bevel gear is mounted on the second rotating shaft and is fixedly connected thereto, the second helical bevel gear is meshed with the first helical bevel gear, the second helical gear and the third helical gear are both sleeved on the third rotating shaft and fixedly connected thereto, the second helical gear is meshed with the first helical gear, the fourth helical gear is sleeved on the first rotating shaft and meshed with the third helical gear, the diameter of the first helical bevel gear is smaller than the diameter of the second helical bevel gear, the diameter of the first helical gear is smaller than the diameters of the second helical bevel gear and the second helical gear, and the diameter of the third helical gear is smaller than the diameters of the second helical gear and the fourth helical gear;

[0015] A cooling pipe is arranged in the roller and the tool holder. The cooling pipe is provided with an oil inlet and several oil outlets. The oil inlet is located on the side of the roller away from the tool holder, and the several oil outlets are all located on the side of the tool holder close to the clamping assembly. The several oil outlets all correspond to the milling cutter.

[0016] In some embodiments, the first drive assembly includes a third motor, a first worm gear and a first worm, the first worm gear is sleeved on the drum, the first worm gear is rotatably set in a fixed seat and cooperates with the first worm gear, and the third motor is set on the fixed seat and connected to one end of the first worm gear.

[0017] In some embodiments, a limiting ring is provided on the roller;

[0018] An annular groove matching the limiting ring is provided in the fixing seat, and the limiting ring is located in the annular groove and rotatably connected thereto.

[0019] In some embodiments, the base is provided with a slide rail;

[0020] The fixed seat includes a seat body and a sliding seat, the sliding seat is sleeved on the sliding rail and matched with it, and the sliding seat is slidably connected to the sliding rail;

[0021] The first pushing assembly includes a second motor, a first screw rod and a first matching block. The first screw rod is rotatably set on the slide rail, the second motor is set on the base and connected to one end of the first screw rod, the first matching block is sleeved on the first screw rod and threadedly connected to it, and the first matching block is fixedly connected to the slide seat.

[0022] In some embodiments, a shell is further included, which is sleeved on the base. Two groups of protective doors are slidably connected to the shell, and the two groups of protective doors correspond to the milling cutter.

[0023] In some embodiments, a dust collection assembly is provided in the shell, and the dust collection assembly includes a dust collecting pipe, a sieve plate and a connecting pipe. The dust collecting pipe is provided in the shell, and the dust collecting pipe is located above the knife seat. An opening is provided on the side of the dust collecting pipe close to the knife seat, and the sieve plate is located in the opening. A plurality of sieve holes are provided on the sieve plate. The connecting pipe is provided in the shell and communicates with the dust collecting pipe, and an end of the connecting pipe away from the dust collecting pipe is provided with an air outlet for connecting to the dust collection equipment.

[0024] In some embodiments, a shielding assembly is further included, which includes a baffle and a protective cover. The baffle is arranged in the shell and fixedly connected to the shell. The baffle is located on the side of the knife seat close to the roller. A through hole is opened on the baffle to facilitate the passage of the fixed seat. The protective cover is mounted on the fixed seat, and the protective cover is located in the through hole and cooperates with it.

[0025] In some embodiments, a plurality of brushes that fit the protective cover are provided on the inner side of the through hole.

[0026] In some embodiments, the clamping assembly includes a support, a slide, a first positioning post, a second positioning post, a mounting seat, a second pushing assembly, and a second driving assembly, wherein the support is provided on the base, the support is located on the side of the knife holder away from the roller, the slide is slidably provided on the support, the first positioning post is rotatably provided on the slide, the mounting seat is slidably provided on the slide, the mounting seat is fixedly connected to the slide by screws, the second positioning post is rotatably provided on the mounting seat, and the second positioning post corresponds to the first positioning post;

[0027] The second pushing assembly is arranged on the support and connected to the slide to drive the slide to move;

[0028] The second driving assembly is disposed on the slide and connected to the first positioning post to drive the first positioning post to rotate.

[0029] In some embodiments, the second pushing assembly includes a fourth motor, a second screw rod, and a second matching block, wherein the second screw rod is rotatably mounted on a support, the fourth motor is mounted on the support and fixedly connected to one end of the second screw rod, the second matching block is sleeved on the second screw rod and threadedly connected thereto, and the second matching block is fixedly connected to the slide;

[0030] The second drive assembly includes a fifth motor, a second worm gear and a second worm. The second worm gear is sleeved on the first positioning column. The second worm is rotatably set on the slide and cooperates with the second worm gear. The fifth motor is set on the slide and connected to one end of the second worm.

[0031] The embodiment of the present application provides a CNC screw rotor processing milling machine. The present application can make the transmission structure of the milling cutter more compact through multiple transmissions of two sets of helical bevel gears and four sets of helical gears, thereby reducing the volume of the cutter seat and having a higher degree of integration, so as to increase the rotation amplitude of the cutter seat and enhance the flexibility and applicability of the device. At the same time, when the milling cutter is driven to rotate, the noise and vibration generated by the device at high speed operation are reduced, thereby making the transmission smoother, and the impact, vibration and noise can be effectively alleviated. This transmission method has the characteristics of small size, light weight, smooth starting, high torque, fine transmission ratio grading, simple structure, easy installation, inspection and maintenance, which can reduce the equipment maintenance cost and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 A schematic diagram of a three-dimensional structure provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of a three-dimensional internal structure provided in an embodiment of the present application;

[0035] Figure 3 A schematic diagram of a three-dimensional internal structure provided in an embodiment of the present application;

[0036] Figure 4 A schematic diagram of a three-dimensional cross-sectional structure provided in an embodiment of the present application;

[0037] Figure 5 A schematic diagram of the three-dimensional structure of the shielding assembly provided in an embodiment of the present application;

[0038] Figure 6 A schematic diagram of a three-dimensional structure provided in an embodiment of the present application;

[0039] Figure 7 A schematic diagram of a three-dimensional explosion structure provided in an embodiment of the present application;

[0040] Figure 8 A schematic diagram of the three-dimensional structure of the first pushing assembly provided in an embodiment of the present application;

[0041] Figure 9 A schematic diagram of a three-dimensional cross-sectional structure provided in an embodiment of the present application;

[0042] Figure 10 A schematic diagram of the three-dimensional structure of the milling assembly provided in an embodiment of the present application;

[0043] Figure 11 A schematic diagram of a three-dimensional explosion structure provided in an embodiment of the present application;

[0044] Figure 12 A schematic diagram of the three-dimensional structure of the transmission assembly provided in an embodiment of the present application;

[0045] Figure 13 A schematic diagram of the three-dimensional structure of the clamping assembly provided in an embodiment of the present application;

[0046] Figure 14 A schematic diagram of the three-dimensional exploded structure of the clamping assembly provided in an embodiment of the present application.

[0047] In the figure: 1, base; 11, slide rail;

[0048] 2. Clamping assembly; 21. Support; 22. Slide plate; 23. First positioning post; 24. Second positioning post; 25. Second pushing assembly; 251. Fourth motor; 252. Second lead screw; 253. Second mating block; 26. Second driving assembly; 261. Fifth motor; 262. Second worm gear; 263. Second worm; 27. Mounting base;

[0049] 3. Fixed seat; 31. Seat body; 32. Sliding seat; 33. Annular groove;

[0050] 4. First pushing assembly; 41. Second motor; 42. First screw rod; 43. First matching block;

[0051] 5. Roller; 51. Limiting ring;

[0052] 6. First drive assembly; 61. Third motor; 62. First worm gear; 63. First worm;

[0053] 7. Milling assembly; 71. Tool holder; 72. First rotating shaft; 73. Milling cutter;

[0054] 8. Transmission assembly; 81. First motor; 82. Connecting shaft; 83. First helical bevel gear; 84. Second helical bevel gear; 85. Second rotating shaft; 86. Third rotating shaft; 87. First helical gear; 88. Second helical gear; 89. Third helical gear; 80. Fourth helical gear;

[0055] 9. Cooling pipe; 91. Oil inlet; 92. Oil outlet;

[0056] 10. Shell; 101. Protective door;

[0057] 20. Dust collection assembly; 201. Dust collection pipe; 202. Screen plate; 203. Connecting pipe; 204. Air outlet;

[0058] 30. Shielding assembly; 301. Baffle; 302. Protective cover; 303. Through hole; 304. Brush. DETAILED DESCRIPTION

[0059] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0060] The embodiment of the present application provides a CNC screw rotor processing milling machine, which can solve the problems of general milling machines in related technologies, such as complex installation, large tool holder size, which limits the range of motion of the milling cutter, and poor flexibility and applicability.

[0061] See also Figures 1-14 , a CNC screw rotor processing milling machine, which includes: a base 1, a clamping assembly 2, a fixed seat 3, a first pushing assembly 4, a roller 5, a first driving assembly 6, a milling assembly 7, a transmission assembly 8 and a cooling pipe 9. The clamping assembly 2 is provided on the base 1 to clamp and fix the screw rotor, the fixed seat 3 is slidably provided on the base 1, the first pushing assembly 4 is provided on the base 1 and connected to the fixed seat 3 to drive the fixed seat 3 to move closer to or away from the clamping assembly 2, the roller 5 is rotatably provided on the fixed seat 3, the first driving assembly 6 is provided on the fixed seat 3 and connected to the roller 5 to drive the roller 5 to rotate, the milling assembly 7 includes a tool seat 71, a first rotating shaft 72 and a milling cutter 73, the tool seat 71 is provided on the side of the roller 5 close to the clamping assembly 2, the first rotating shaft 72 is rotatably provided on the tool seat 71, and the milling cutter 73 is sleeved on the first rotating shaft 72;

[0062] Please participate Figure 12The transmission assembly 8 includes a first motor 81, a connecting shaft 82, a first helical bevel gear 83, a second helical bevel gear 84, a second rotating shaft 85, a third rotating shaft 86, a first helical gear 87, a second helical gear 88, a third helical gear 89 and a fourth helical gear 80. The connecting shaft 82 passes through the drum 5 and is rotatably connected thereto. The first motor 81 is provided on the fixed seat 3 and is connected to one end of the connecting shaft 82. The first helical bevel gear 83 is sleeved on the connecting shaft 82 and fixedly connected thereto. The first helical bevel gear 83 is located in the knife seat 71. The second rotating shaft 85 and the third rotating shaft 86 are both rotatably provided in the knife seat 71. The second helical bevel gear 84 and the first helical gear 87 The second bevel gear 84 is mounted on the second rotating shaft 85 and is fixedly connected thereto. The second bevel gear 84 is meshed with the first bevel gear 83. The second bevel gear 88 and the third bevel gear 89 are mounted on the third rotating shaft 86 and are fixedly connected thereto. The second bevel gear 88 is meshed with the first bevel gear 87. The fourth bevel gear 80 is mounted on the first rotating shaft 72 and is meshed with the third bevel gear 89. The diameter of the first bevel gear 83 is smaller than that of the second bevel gear 84. The diameter of the first bevel gear 87 is smaller than that of the second bevel gear 84 and the second bevel gear 88. The diameter of the third bevel gear 89 is smaller than that of the second bevel gear 88 and the fourth bevel gear 80.

[0063] The cooling pipe 9 is provided in the roller 5 and the tool holder 71. The cooling pipe 9 is provided with an oil inlet 91 and a plurality of oil outlets 92. The oil inlet 91 is located on the side of the roller 5 away from the tool holder 71. The plurality of oil outlets 92 are located on the side of the tool holder 71 close to the clamping assembly 2. The plurality of oil outlets 92 correspond to the milling cutter 73.

[0064] The first bevel gear 83 is driven by the first motor 81 to rotate the connecting shaft 82, so that the connecting shaft 82 drives the first bevel gear 83 to rotate. The first bevel gear 83 drives the first bevel gear 87 on the second rotating shaft 85 to rotate through the meshing transmission with the second bevel gear 84. The first bevel gear 87 drives the third bevel gear 89 on the third rotating shaft 86 to rotate through the meshing transmission with the second bevel gear 88. The third bevel gear 89 drives the first rotating shaft 72 to rotate through the meshing transmission with the fourth bevel gear 80, so that the milling cutter 73 rotates. Then, the fixing seat 3 can be pushed to move closer to the blank by the first pushing assembly 4, so that the blank can be milled by the high-speed rotating milling cutter 73. At the same time, the roller 5 can be driven to rotate by the first driving assembly 6, so that the milling cutter 73 rotates along the roller 5, so as to adjust the milling angle of the milling cutter 73, thereby milling the screw rotor.

[0065] At the same time, during processing, the oil inlet 91 can be connected to the coolant supply device, so that the coolant is discharged outward from the multiple oil outlets 92 through the cooling pipe 9. In this way, the milling cutter 73 can be cooled by the coolant, thereby ensuring the milling quality of the screw rotor and the service life of the milling cutter 73.

[0066] In this way, through the transmission of two sets of helical bevel gears and four sets of helical gears, not only can the transmission structure of the milling cutter 73 be made more compact, thereby reducing the volume of the cutter holder 71 and having a higher degree of integration, so as to increase the rotation amplitude of the cutter holder 71 and enhance the flexibility and applicability of the device, but also the noise and vibration generated by the device at high speed when the milling cutter 73 is driven in rotation can be reduced, thereby making the transmission smoother, and the impact, vibration and noise can be effectively alleviated. Moreover, this transmission method has the characteristics of small size, light weight, smooth starting, and fine transmission ratio grading. It has a simple structure, is easy to install, overhaul and maintain, and can reduce the maintenance cost of equipment. At the same time, the torque of the milling cutter 73 can be enhanced by driving the large gear through multiple sets of small gears, thereby further ensuring the strength and stability of the milling cutter 73 during the milling process, and is easy to use and practical.

[0067] See also Figure 11 In this embodiment, the first driving assembly 6 includes a third motor 61, a first worm gear 62 and a first worm 63. The first worm gear 62 is sleeved on the drum 5. The first worm gear 63 is rotatably arranged in the fixed base 3 and cooperates with the first worm gear 62. The third motor 61 is provided on the fixed base 3 and connected to one end of the first worm gear 63.

[0068] In this way, when the screw rotor is milled by the milling cutter 73, the first worm 63 can be driven to rotate by the third motor 61, so that the first worm 63 drives the drum 5 to rotate through the coordinated transmission with the first worm gear 62. In this way, the milling angle of the milling cutter 73 can be greatly and steplessly adjusted by the drum 5 to facilitate milling of screw rotors of different specifications, thereby enhancing the applicability and flexibility of the device. At the same time, the self-locking transmission of the first worm gear 62 driven by the first worm 63 can also prevent the drum 5 from flipping over due to pressure during the milling process, thereby ensuring the stability and accuracy of the milling cutter 73 during operation and facilitating use.

[0069] Specifically, in this embodiment, a limiting ring 51 is provided on the roller 5, and an annular groove 33 cooperating with the limiting ring 51 is provided in the fixing seat 3. The limiting ring 51 is located in the annular groove 33 and is rotatably connected thereto.

[0070] In this way, the position of the roller 5 can be limited and fixed by the limiting cooperation of the limiting ring 51 and the annular groove 33, thereby avoiding excessive pressure on the milling cutter 73 during the milling of the screw rotor, which causes the position of the roller 5 to shift and affects the service life and accuracy of the device. In this way, the rigidity and strength of the device during operation can be guaranteed, and it is easy to use and highly practical.

[0071] More specifically, the base 1 is provided with a slide rail 11, and the fixed seat 3 includes a seat body 31 and a slide seat 32. The slide seat 32 is sleeved on the slide rail 11 and matched therewith, and the slide seat 32 is slidably connected to the slide rail 11;

[0072] In this way, the movement of the milling cutter 73 can be guided by the limiting effect of the sliding connection between the slide rail 11 and the slide seat 32, thereby ensuring the accuracy of the milling cutter 73 after the back and forth movement;

[0073] The first pushing assembly 4 includes a second motor 41, a first screw rod 42, and a first matching block 43. The first screw rod 42 is rotatably mounted on the slide rail 11. The second motor 41 is mounted on the base 1 and connected to one end of the first screw rod 42. The first matching block 43 is sleeved on the first screw rod 42 and threadedly connected thereto. The first matching block 43 is fixedly connected to the slide seat 32.

[0074] In this way, the first screw rod 42 can be driven to rotate by the second motor 41, so that the first screw rod 42 drives the first matching block 43 to move along the first screw rod 42 through the matching transmission with the first matching block 43, so that the first matching block 43 will drive the slide 32 to move, thereby driving the milling cutter 73 to move through the seat body 31, so as to facilitate stepless adjustment of the distance between the milling cutter 73 and the screw rotor, thereby adjusting the feed depth of the milling cutter 73, so as to facilitate milling processing of screw rotors of different specifications, thereby further enhancing the flexibility and applicability of the device and facilitating use.

[0075] See also Figure 1-Figure 2 In this embodiment, it also includes a housing 10, the housing 10 is sleeved on the base 1, and two sets of protective doors 101 are slidably connected to the housing 10, and the two sets of protective doors 101 correspond to the milling cutter 73;

[0076] In this way, the entire device can be covered by the shell 10. When the screw rotor is milled, the shell 10 can block and protect the coolant and iron chips splashed during the milling process, thereby preventing the coolant and iron chips from splashing everywhere and affecting the working environment of the workshop. At the same time, during the milling process, it can also prevent workers from accidentally contacting the milling cutter 73, which can reduce safety hazards. When the screw rotor needs to be loaded and unloaded, the two sets of protective doors 101 can be opened, which can enhance the safety of the device and facilitate use.

[0077] See also Figure 3-Figure 5 A dust collection assembly 20 is provided in the shell 10, and the dust collection assembly 20 includes a dust collecting pipe 201, a sieve plate 202 and a connecting pipe 203. The dust collecting pipe 201 is provided in the shell 10, and is located above the knife seat 71. An opening is provided on the side of the dust collecting pipe 201 close to the knife seat 71, and the sieve plate 202 is located in the opening. A plurality of sieve holes are provided on the sieve plate 202. The connecting pipe 203 is provided in the shell 10 and communicates with the dust collecting pipe 201. An end of the connecting pipe 203 away from the dust collecting pipe 201 is provided with an air outlet 204 for connecting to a dust collection device.

[0078] In this way, during the milling process of the screw rotor, the dust collection equipment can be connected to the air outlet 204 to generate negative pressure in the connecting pipe 203. In this way, the oil mist generated by the high speed and high temperature of the coolant during the milling process will be sucked into the dust collecting pipe 201, thereby preventing the oil mist from covering the shell 10 and causing the oil mist to stick to the equipment surface, causing equipment pollution. In this way, the cleanliness of the equipment in the shell 10 can be ensured. At the same time, the oil mist can be condensed into coolant again after being absorbed and collected for recycling, which is more energy-saving and environmentally friendly. The sieve plate 202 arranged in the opening of the dust collecting pipe 201 can screen large pieces of iron filings, thereby preventing iron filings from entering the dust collecting pipe 201 and causing the connecting pipe 203 to be blocked, affecting the cleaning effect of the oil mist, and facilitating use.

[0079] Furthermore, in this embodiment, a shielding assembly 30 is further included. The shielding assembly 30 includes a baffle 301 and a protective cover 302. The baffle 301 is disposed in the housing 10 and fixedly connected thereto. The baffle 301 is located on a side of the knife holder 71 close to the roller 5. The baffle 301 is provided with a through hole 303 for the fixing seat 3 to pass through. The protective cover 302 is sleeved on the fixing seat 3 and is located in the through hole 303 and cooperates therewith.

[0080] In this way, the multiple structures on the fixed base 3 can be covered by the protective cover 302, and the working area and the equipment maintenance area can be separated by the baffle 301 to prevent coolant and iron filings from splashing onto the devices on the fixed base 3. In this way, the cleanliness of the equipment on the fixed base 3 can be ensured to facilitate subsequent inspection and maintenance by staff. At the same time, when the fixed base 3 is moving, the protective cover 302 can shuttle in the through hole 303, thereby ensuring the normal use of the baffle 301, which is highly practical.

[0081] Among them, a plurality of brushes 304 are provided on the inner side of the through hole 303 and fit with the protective cover 302;

[0082] In this way, the gap between the baffle 301 and the protective cover 302 can be further filled by the brush 304, thereby enhancing the sealing effect between the baffle 301 and the protective cover 302, and preventing coolant and iron filings from entering the equipment maintenance area through the gap between the baffle 301 and the protective cover 302;

[0083] At the same time, when the protective cover 302 is located on the side of the baffle 301 close to the milling cutter 73, some coolant and iron chips will fall on the protective cover 302. In this way, when the fixed seat 3 drives the protective cover 302 away from the milling cutter 73, the protective cover 302 moves, and the coolant and iron chips falling on the protective cover 302 can be brushed off by the brush 304, so that the coolant and iron chips fall into the working area, so that the coolant and iron chips can be further prevented from falling onto the structural surface of the fixed seat 3 and causing pollution to the equipment maintenance area, thereby further ensuring the zoning and isolation of the equipment working area and the equipment maintenance area, ensuring the cleanliness of the equipment maintenance area, and strong practicality.

[0084] See also Figure 13-14 The clamping assembly 2 includes a support 21, a slide 22, a first positioning column 23, a second positioning column 24, a mounting seat 27, a second pushing assembly 25 and a second driving assembly 26. The support 21 is provided on the base 1. The support 21 is located on the side of the knife seat 71 away from the roller 5. The slide 22 is slidably provided on the support 21. The first positioning column 23 is rotatably provided on the slide 22. The mounting seat 27 is slidably provided on the slide 22. The mounting seat 27 is fixedly connected to the slide 22 by screws. The second positioning column 24 is rotatably provided on the mounting seat 27. The second positioning column 24 corresponds to the first positioning column 23.

[0085] The second pushing assembly 25 is provided on the support 21 and connected to the slide 22 to drive the slide 22 to move. The second driving assembly 26 is provided on the slide 22 and connected to the first positioning post 23 to drive the first positioning post 23 to rotate.

[0086] In this way, when in use, the position of the mounting seat 27 can be adjusted, and the two ends of the screw rotor blank can be clamped and fixed by the first positioning column 23 and the second positioning column 24. At the same time, the slide 22 can be driven to move by the second pushing component 25 so that different positions of the blank can contact the milling cutter 73. At the same time, the first positioning column 23 can be driven to rotate by the second driving component 26 to drive the blank to rotate, so that the milling cutter 73 can mill different positions of the blank. In this way, the device can be used to mill screw rotors of different specifications, thereby enhancing the applicability of the device and making it highly practical.

[0087] Preferably, the second pushing assembly 25 includes a fourth motor 251, a second screw rod 252, and a second matching block 253. The second screw rod 252 is rotatably mounted on the support 21. The fourth motor 251 is mounted on the support 21 and fixedly connected to one end of the second screw rod 252. The second matching block 253 is sleeved on the second screw rod 252 and threadedly connected thereto. The second matching block 253 is fixedly connected to the slide 22.

[0088] In this way, the fourth motor 251 can drive the second screw rod 252 to rotate, and the second matching block 253 can be driven to move by the cooperation between the second screw rod 252 and the second matching block 253, so that the second matching block 253 will drive the slide plate 22 to move, thereby adjusting the horizontal position of the blank;

[0089] The second drive assembly 26 includes a fifth motor 261, a second worm gear 262, and a second worm 263. The second worm gear 262 is sleeved on the first positioning post 23. The second worm 263 is rotatably mounted on the slide 22 and engages with the second worm gear 262. The fifth motor 261 is mounted on the slide 22 and connected to one end of the second worm 263.

[0090] In this way, the second worm 263 can be driven to rotate by the fifth motor 261, so that the second worm 263 drives the first positioning column 23 to rotate through the cooperation transmission with the second worm wheel 262, so as to drive the blank to rotate through the first positioning column 23. In this way, any position of the blank can contact the milling cutter 73, thereby facilitating the milling processing of the screw rotor, being easy to use, and having strong practicality.

[0091] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0092] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0093] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A CNC screw rotor machining milling machine, characterized in that: It includes: Base (1); A clamping assembly (2) is arranged on the base (1) and is used to clamp and fix the screw rotor; A fixed seat (3) which is slidably arranged on the base (1); A first pushing assembly (4) is disposed on the base (1) and connected to the fixing seat (3) to drive the fixing seat (3) to move closer to or farther from the clamping assembly (2); A roller (5) rotatably mounted on a fixed seat (3); A first driving assembly (6) is disposed on the fixed seat (3) and connected to the roller (5) to drive the roller (5) to rotate; A milling assembly (7), comprising a cutter seat (71), a first rotating shaft (72) and a milling cutter (73), wherein the cutter seat (71) is arranged on a side of the roller (5) close to the clamping assembly (2), the first rotating shaft (72) is rotatably arranged on the cutter seat (71), and the milling cutter (73) is sleeved on the first rotating shaft (72); The transmission assembly (8) comprises a first motor (81), a connecting shaft (82), a first helical bevel gear (83), a second helical bevel gear (84), a second rotating shaft (85), a third rotating shaft (86), a first helical gear (87), a second helical gear (88), a third helical gear (89) and a fourth helical gear (80), wherein the connecting shaft (82) passes through the roller (5) and is rotatably connected thereto, the first motor (81) is arranged on a fixed seat (3) and is connected to one end of the connecting shaft (82), the first helical bevel gear (83) is sleeved on the connecting shaft (82) and is fixedly connected thereto, the first helical bevel gear (83) is located in a knife seat (71), the second rotating shaft (85) and the third rotating shaft (86) are both rotatably arranged in the knife seat (71), the second helical bevel gear (84) and the first helical bevel gear (87) are rotatably connected thereto, The gears (87) are sleeved on the second rotating shaft (85) and fixedly connected thereto, the second bevel gear (84) is meshed with the first bevel gear (83), the second bevel gear (88) and the third bevel gear (89) are sleeved on the third rotating shaft (86) and fixedly connected thereto, the second bevel gear (88) is meshed with the first bevel gear (87), the fourth bevel gear (80) is sleeved on the first rotating shaft (72) and meshed with the third bevel gear (89), the diameter of the first bevel gear (83) is smaller than the diameter of the second bevel gear (84), the diameter of the first bevel gear (87) is smaller than the diameters of the second bevel gear (84) and the second bevel gear (88), and the diameter of the third bevel gear (89) is smaller than the diameters of the second bevel gear (88) and the fourth bevel gear (80); A cooling pipe (9) is arranged in the roller (5) and the tool holder (71), and an oil inlet (91) and a plurality of oil outlets (92) are provided on the cooling pipe (9), wherein the oil inlet (91) is located on a side of the roller (5) away from the tool holder (71), and the plurality of oil outlets (92) are located on a side of the tool holder (71) close to the clamping assembly (2), and the plurality of oil outlets (92) correspond to the milling cutter (73).

2. A CNC screw rotor machining milling machine as claimed in claim 1, characterized in that: The first driving assembly (6) comprises a third motor (61), a first worm wheel (62) and a first worm (63); the first worm wheel (62) is sleeved on the roller (5); the first worm (63) is rotatably arranged in the fixed seat (3) and cooperates with the first worm wheel (62); the third motor (61) is arranged on the fixed seat (3) and connected to one end of the first worm (63).

3. A CNC screw rotor machining milling machine as claimed in claim 1, characterized in that: The roller (5) is provided with a limiting ring (51); An annular groove (33) matching with the limiting ring (51) is provided in the fixing seat (3); the limiting ring (51) is located in the annular groove (33) and is rotatably connected thereto.

4. A CNC screw rotor machining milling machine as claimed in claim 1, characterized in that: The base (1) is provided with a slide rail (11); The fixed seat (3) comprises a seat body (31) and a sliding seat (32), wherein the sliding seat (32) is sleeved on the sliding rail (11) and matched therewith, and the sliding seat (32) is slidably connected to the sliding rail (11); The first pushing assembly (4) comprises a second motor (41), a first screw rod (42) and a first matching block (43); the first screw rod (42) is rotatably arranged on the slide rail (11); the second motor (41) is arranged on the base (1) and connected to one end of the first screw rod (42); the first matching block (43) is sleeved on the first screw rod (42) and threadedly connected thereto; and the first matching block (43) is fixedly connected to the slide seat (32).

5. The CNC screw rotor machining milling machine according to claim 1, characterized in that: It also comprises a shell (10), the shell (10) being sleeved on the base (1), and two groups of protective doors (101) being slidably connected to the shell (10), and the two groups of protective doors (101) corresponding to the milling cutter (73).

6. A CNC screw rotor machining milling machine as claimed in claim 5, characterized in that: A dust collecting assembly (20) is provided in the shell (10), and the dust collecting assembly (20) comprises a dust collecting pipe (201), a sieve plate (202) and a connecting pipe (203). The dust collecting pipe (201) is provided in the shell (10), and the dust collecting pipe (201) is located above the knife seat (71). An opening is provided on a side of the dust collecting pipe (201) close to the knife seat (71), and the sieve plate (202) is located in the opening. A plurality of sieve holes are provided on the sieve plate (202). The connecting pipe (203) is provided in the shell (10) and communicates with the dust collecting pipe (201), and an air outlet (204) for connecting to a dust collecting device is provided at one end of the connecting pipe (203) away from the dust collecting pipe (201).

7. A CNC screw rotor machining milling machine as claimed in claim 5, characterized in that: The invention also comprises a shielding assembly (30), wherein the shielding assembly (30) comprises a baffle (301) and a protective cover (302), wherein the baffle (301) is arranged in the housing (10) and fixedly connected thereto, the baffle (301) is located on a side of the knife seat (71) close to the roller (5), the baffle (301) is provided with a through hole (303) for facilitating the passage of the fixing seat (3), the protective cover (302) is sleeved on the fixing seat (3), and the protective cover (302) is located in the through hole (303) and cooperates therewith.

8. A CNC screw rotor machining milling machine as claimed in claim 7, characterized in that: A plurality of brushes (304) that fit the protective cover (302) are provided on the inner side of the through hole (303).

9. The CNC screw rotor machining milling machine according to claim 1, characterized in that: The clamping assembly (2) comprises a support (21), a slide plate (22), a first positioning column (23), a second positioning column (24), a mounting seat (27), a second pushing assembly (25) and a second driving assembly (26); the support (21) is arranged on the base (1); the support (21) is located on a side of the knife seat (71) away from the roller (5); the slide plate (22) is slidably arranged on the support (21); the first positioning column (23) is rotatably arranged on the slide plate (22); the mounting seat (27) is slidably arranged on the slide plate (22); the mounting seat (27) is fixedly connected to the slide plate (22) by screws; the second positioning column (24) is rotatably arranged on the mounting seat (27); the second positioning column (24) corresponds to the first positioning column (23); The second pushing component (25) is arranged on the support (21) and connected to the slide plate (22) to drive the slide plate (22) to move; The second driving assembly (26) is arranged on the slide plate (22) and connected to the first positioning column (23) to drive the first positioning column (23) to rotate.

10. A CNC screw rotor machining milling machine as claimed in claim 9, characterized in that: The second pushing assembly (25) comprises a fourth motor (251), a second screw rod (252) and a second matching block (253); the second screw rod (252) is rotatably arranged on the support (21); the fourth motor (251) is arranged on the support (21) and is fixedly connected to one end of the second screw rod (252); the second matching block (253) is sleeved on the second screw rod (252) and is threadedly connected thereto; and the second matching block (253) is fixedly connected to the slide plate (22); The second driving assembly (26) comprises a fifth motor (261), a second worm gear (262) and a second worm (263); the second worm gear (262) is sleeved on the first positioning column (23); the second worm gear (263) is rotatably arranged on the slide plate (22) and cooperates with the second worm gear (262); the fifth motor (261) is arranged on the slide plate (22) and connected to one end of the second worm gear (263).

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