An impeller processing device for a Roots blower

Abstract

The present invention discloses an impeller processing device for a Roots blower, which relates to the technical field of Roots blower impeller processing. The present invention includes a frame, on both sides of the inner wall of the frame, three-jaw chucks are installed. Inside the frame, a linear slide rail module is fixedly installed, and a bracket is installed on the linear slide rail module. Inside the bracket, a rotating frame is rotatably installed. On the outside of the rotating frame, a telescopic hydraulic cylinder I is fixedly installed, and the telescopic end of the telescopic hydraulic cylinder I is fixedly installed with a cutting shaft housing. At the bottom of the cutting shaft housing, a cutting main shaft is rotatably installed. When the present invention cuts the convex surface of the impeller, the fixed cutting tool and the adjustable cutting tool rotate as a whole and are circumferentially distributed, which can provide the cutting area within the largest range and has a fast cutting speed. When cutting the concave surface of the impeller, the fixed cutting tool and the adjustable cutting tool rotate independently and are linearly distributed, which can perform fine processing on the concave surface, and thus can efficiently complete the processing of impellers with complex shapes.

Description

Technical Field

[0001] The present invention relates to the technical field of Roots blower impeller processing, and specifically relates to an impeller processing device for a Roots blower. Background Art

[0002] As a common gas compression device, the Roots blower is widely used in industrial fields such as sewage treatment, air compression, and gas transportation. In the working principle of the Roots blower, the design and processing accuracy of the impeller are the key factors affecting its performance. As the core component of the Roots blower, the impeller is directly related to the efficiency, durability, and operating stability of the blower.

[0003] The impeller of the Roots blower usually adopts a complex three-dimensional curved surface structure, and the processing difficulty of the impeller is relatively large. Traditional impeller processing methods mainly include milling, grinding, etc. These methods often require a large amount of manual intervention, and it is difficult to control the processing accuracy. Especially when producing a large number of blower impellers, the process cost is relatively high and the production efficiency is low. In Chinese Patent (Publication No.: CN118650477A), an impeller processing device for a Roots blower is disclosed, which includes a housing. A first slideway is fixedly installed on the back inside the housing, a power box is movably clamped in the middle of the first slideway, second slideways are respectively fixedly installed at the front and rear ends in the middle inside the housing, a limiting rod is fixedly installed in the middle inside the housing and located between the two second slideways, and an indexing plate is fixedly installed on one side in the middle inside the housing. This patent and the prior art both use linear milling and mill along the axis of the impeller. Therefore, during the processing, the impeller needs to rotate, and the impeller is in a non-fixed state, which is prone to unstable factors such as vibration. Moreover, due to the complex three-dimensional curved surface structure of the impeller, the cutting tool head for reciprocating linear milling is relatively small, the single cutting amount is small, and the processing efficiency is low. Summary of the Invention

[0004] The purpose of the present invention is: to solve the above problems, the present invention provides an impeller processing device for a Roots blower.

[0005] The present invention specifically adopts the following technical solutions to achieve the above purpose:

[0006] An impeller processing device for a Roots blower, including a frame. Three-jaw chucks are installed on both sides of the inner wall of the frame. A linear slide rail module is fixedly installed inside the frame. A bracket is installed on the linear slide rail module. A rotating frame is rotatably installed inside the bracket. A telescopic hydraulic cylinder I is fixedly installed on the outside of the rotating frame. The telescopic end of the telescopic hydraulic cylinder I is fixedly installed with a cutting shaft housing, and a cutting main shaft is rotatably installed at the bottom of the cutting shaft housing.

[0007] A cutting tool holder is fixedly installed at the bottom of the cutting spindle. Two groups of fixed cutting tools are rotatably installed inside the cutting tool holder. The bottom of the cutting spindle is slidably connected to a lifting frame. Three hinge rods are hinged to the bottom of the lifting frame. The bottom ends of the three hinge rods are all hinged to a tool sleeve. An adjustable cutting tool is rotatably installed inside the tool sleeve. Both the adjustable cutting tool and the fixed cutting tool can rotate independently. Knife grooves are formed on both sides of the cutting tool holder, and the tool sleeve can slide along the knife grooves.

[0008] Further, worm gears are fixedly installed at the tops of both the adjustable cutting tool and the fixed cutting tool. Slide grooves are formed on both sides of the cutting tool holder. Two sliders are slidably connected inside the two slide grooves. A worm is rotatably installed between the two sliders. When the adjustable cutting tool and the fixed cutting tool are arranged in a straight line side by side, the worm can be meshed with multiple worm gears simultaneously.

[0009] Further, a cutting motor is fixedly installed inside the cutting shaft housing. Cutting drive wheels are fixedly installed at the bottoms of the output ends of the cutting motor. A sliding key is arranged on the outer side of the cutting spindle. A cutting gear sleeve is sleeved on the outer side of the cutting spindle. Multiple key grooves are annularly formed inside the cutting gear sleeve. The sliding key is slidably connected in the key grooves. A telescopic hydraulic cylinder II is fixedly installed inside the cutting shaft housing. A rotating ring is fixedly installed at the bottom of the telescopic end of the telescopic hydraulic cylinder II. The rotating ring is rotatably installed on the top of the cutting gear sleeve. A transmission shaft is rotatably installed inside the cutting shaft housing. A transmission wheel is fixedly installed on the upper half of the transmission shaft. A driving bevel gear is fixedly installed on the lower half of the transmission shaft. A driven bevel gear is fixedly installed at one end of the worm. When the slider descends to the lowest position, the driven bevel gear is meshed with the driving bevel gear. The transmission wheel and the cutting drive wheel can be meshed on both sides of the cutting gear sleeve.

[0010] Further, a connecting sleeve is arranged at the bottom of the cutting gear sleeve. A connecting column is fixedly installed at the top of the lifting frame. The connecting column is rotatably installed at the bottom of the connecting sleeve.

[0011] Further, a main shaft transmission cavity is formed inside the cutting spindle. The lifting frame penetrates and is slidably connected to the main shaft transmission cavity. A reversing wheel is rotatably installed inside the main shaft transmission cavity. Outer straight teeth are arranged on the outer side of the lifting frame. A toothed rod is fixedly installed at the top of the slider. The toothed rod and the outer straight teeth are respectively meshed on both sides of the reversing wheel. A support spring is arranged between the slider and the inner bottom of the slide groove.

[0012] Further, a locking slot is formed at the top of the cutting spindle. A locking component is fixedly installed inside the cutting shaft housing. The locking component is composed of an electric telescopic rod and a locking plug. The locking plug is fixedly installed at the telescopic end of the electric telescopic rod. When the locking plug is inserted into the locking slot, the driven bevel gear and the driving bevel gear are on the same side.

[0013] Further, guide holes are provided on both sides of the cutting tool rest. A guide rod is fixedly installed on one side of the tool sleeve close to the tool groove. The guide rod is inserted into the guide hole. A jack is provided on one side of the tool sleeve close to the tool groove. Slide holes are provided on the outer sides of both the adjustable cutting tool and the fixed cutting tool. A pin is slidably connected inside the slide hole. A plugging top spring is provided between the pin and the inner wall of the slide hole. A socket groove is provided in the upper half of the tool groove. The tool sleeve can be inserted into the socket groove. A push rod is provided on the inner wall of the socket groove. Both the pin and the push rod can be inserted into the jack. Two sets of installation holes are provided inside the cutting tool rest. The fixed cutting tool is rotatably installed in the installation hole. A through hole is provided through between the installation hole and the socket groove. A clamping rod is slidably connected inside the through hole. A clamping spring is provided between the clamping rod and the inner wall of the through hole.

[0014] Further, the push rod is made of a permanent magnet. Four sets of tool tips are fixedly installed at the bottoms of both the adjustable cutting tool and the fixed cutting tool. The four sets of tool tips are distributed in a circular shape. Four slide holes are provided and are correspondingly distributed with the tool tips.

[0015] Further, the bracket is composed of a circular ring and a toothed ring. The circular ring and the toothed ring are connected by a cross brace. The first telescopic hydraulic cylinder is fixedly installed on the cross brace. Both the circular ring and the toothed ring are rotatably installed on the top of the bracket. A driving motor is fixedly installed on the top of the bracket. A driving wheel is fixedly installed at the output end of the driving motor. The driving wheel is engaged with the toothed ring.

[0016] Further, a cooling pipe is fixedly installed on the outer side of the cross brace. A laser distance sensor is fixedly installed at the bottom of the cutting shaft housing.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. By adopting the method of rotating the cutting tool, the cutting tool can run along the designed trajectory in the present invention. The impeller is fixedly clamped, avoiding possible vibrations or unstable factors during the rotation process, which helps to maintain high precision during the machining process. Especially for impellers with complex shapes, fixed machining can ensure precise contact between the cutting tool and the workpiece, avoiding deviations that may occur during rotary machining.

[0019] 2. The cutting head of the present invention is composed of a fixed cutting tool and an adjustable cutting tool. When machining the convex surface of the impeller, the fixed cutting tool and the adjustable cutting tool rotate as a whole and are distributed in a circular shape, providing the largest cutting area. The cutting speed is fast. When machining the concave surface of the impeller, the fixed cutting tool and the adjustable cutting tool rotate independently and are distributed in a straight line, enabling fine machining of the concave surface, and thus can efficiently complete the machining of impellers with complex shapes.

[0020] 3. By changing the angle between the fixed cutting tool and the adjustable cutting tool set, the present invention enables different tool heads to participate in the machining. After machining a convex surface and a concave surface, a set of tool heads is switched, which can extend the service life of the tool heads and improve the machining accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the internal structure of the frame of the present invention;

[0023] Figure 3 is a schematic diagram of the bracket structure of the present invention;

[0024] Figure 4 is a schematic diagram of the internal structure of the cutting shaft housing of the present invention;

[0025] Figure 5 is a schematic cross-sectional view of the cutting main shaft of the present invention;

[0026] Figure 6 is a schematic cross-sectional view of the cutting tooth sleeve of the present invention;

[0027] Figure 7 is a schematic diagram of the transmission structure of the fixed cutting tool and the adjustable cutting tool of the present invention;

[0028] Figure 8 is a schematic diagram of the cutting tool holder structure of the present invention;

[0029] Figure 9 is a schematic diagram of the adjustable cutting tool structure of the present invention;

[0030] Figure 10 is the present invention Figure 9 magnified schematic diagram of part A therein.

[0031] Reference numerals: 1, frame; 2, linear slide rail module; 3, three-jaw chuck; 4, bracket; 41, driving wheel; 42, rotating frame; 5, first telescopic hydraulic cylinder; 6, cutting shaft housing; 61, cutting driving wheel; 62, transmission shaft; 63, transmission wheel; 64, driving bevel gear; 65, locking assembly; 66, second telescopic hydraulic cylinder; 7, cutting main shaft; 71, main shaft transmission cavity; 711, reversing wheel; 72, sliding key; 73, cutting tooth sleeve; 731, connecting sleeve; 732, keyway; 74, locking slot; 8, cutting tool holder; 81, tool slot; 82, sleeve slot; 83, ejector rod; 84, guiding hole; 85, sliding groove; 86, slider; 87, worm; 88, toothed rod; 89, driven bevel gear; 810, supporting spring; 811, clamping rod; 9, fixed cutting tool; 10, adjustable cutting tool; 101, worm gear; 102, tool sleeve; 103, lifting frame; 104, connecting column; 105, external straight teeth; 106, articulated rod; 107, guiding rod; 108, jack; 109, pin column; 110, plugging top spring; 11, cooling pipe. Detailed implementation manners

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] Embodiment 1, as Figures 1-10 shown, an impeller processing device for a Roots blower includes a frame 1. Three-jaw chucks 3 are installed on both sides of the inner wall of the frame 1. A linear slide rail module 2 is fixedly installed inside the frame 1. A bracket 4 is installed on the linear slide rail module 2. A rotating frame 42 is rotatably installed inside the bracket 4. A first telescopic hydraulic cylinder 5 is fixedly installed on the outside of the rotating frame 42. The telescopic end of the first telescopic hydraulic cylinder 5 is fixedly installed with a cutting shaft housing 6. A cutting main shaft 7 is rotatably installed at the bottom of the cutting shaft housing 6;

[0034] A cutting tool holder 8 is fixedly installed at the bottom of the cutting main shaft 7. Two groups of fixed cutting tools 9 are rotatably installed inside the cutting tool holder 8. A lifting frame 103 is slidably connected to the bottom of the cutting main shaft 7. Three articulated rods 106 are hinged to the bottom of the lifting frame 103. The bottom ends of the three articulated rods 106 are all hinged to a tool sleeve 102. An adjustable cutting tool 10 is rotatably installed inside the tool sleeve 102. The adjustable cutting tool 10 and the fixed cutting tool 9 can rotate independently. Tool slots 81 are formed on both sides of the cutting tool holder 8. The tool sleeve 102 can slide along the tool slots 81.

[0035] During processing, open the cabinet door of the frame 1, clamp both ends of the impeller on two sets of three-jaw chucks 3 respectively, with the center of the rotating frame 42 located on the axis of the impeller. Then, program according to the size of the outer contour curve of the impeller, so that the rotation and telescopic hydraulic cylinder I 5 of the rotating frame 42 drive the cutting spindle 7 to run along the outer contour curve track of the impeller. Since the outer contour of the Roots blower impeller consists of three convex surfaces and three concave surfaces, when machining the concave surface, the tool radius cannot be too large, otherwise the fine machining of the concave surface cannot be completed. However, if the tool radius is too small, the machining efficiency is as low as that of reciprocating linear cutting. Therefore, through the setting of a special cutting head, when cutting the convex surface of the impeller, the fixed cutting tool 9 and the adjustable cutting tool 10 cannot rotate independently, and the whole rotates with the cutting spindle 7 and is distributed in a circular pattern, which can provide the cutting area in the largest range, with the cutting force evenly distributed, reducing the load on a single tool, reducing tool wear and extending the service life. Therefore, high-speed cutting can be carried out, with a fast cutting speed. When cutting the concave surface of the impeller, control the lifting frame 103 to rise. The lifting frame 103 drives the tool sleeves 102 on both sides to slide into the tool slots 81 through the hinge rods 106. The tool sleeves 102 drive the adjustable cutting tool 10 to slide into the tool slots 81. At this time, the fixed cutting tool 9 and the adjustable cutting tool 10 rotate independently and are distributed in a straight line, with a smaller cutting radius, enabling fine machining of the concave surface. In order to prevent cutting interference, there needs to be a certain distance between the fixed cutting tool 9 and the adjacent adjustable cutting tool 10. Therefore, after the first concave surface cutting is completed, the linear slide rail module 2 needs to cooperate to run, so that the fixed cutting tool 9 and the adjacent adjustable cutting tool 10 can cut the spacing part. It should be noted that the range of the concave surface is the part with a width smaller than the circumferential cutting diameter of the fixed cutting tool 9 and the adjustable cutting tool 10. Therefore, the circumferential cutting area is much larger than the linear cutting part. Compared with the existing processing, the processing efficiency can be greatly improved.

[0036] At the same time, when the equipment of the present invention performs large-range cutting, the outermost cutting heads of the fixed cutting tool 9 and the adjustable cutting tool 10 participate in the cutting. Therefore, after one convex surface and concave surface cutting, the cutting heads on the fixed cutting tool 9 and the adjustable cutting tool 10 are transposed, and the new cutting heads participate in the next cutting, which can greatly improve the service life of the fixed cutting tool 9 and the adjustable cutting tool 10 and improve the cutting accuracy.

[0037] Embodiment 2, on the basis of the above embodiment, further includes that worm wheels 101 are fixedly installed on the tops of both the adjustable cutting tool 10 and the fixed cutting tool 9. Slide grooves 85 are opened on both sides of the cutting tool holder 8. Sliders 86 are slidably connected inside the two slide grooves 85. A worm 87 is rotatably installed between the two sliders 86. When the adjustable cutting tool 10 and the fixed cutting tool 9 are arranged in parallel in a straight line, the worm 87 can be meshed with multiple worm wheels 101 at the same time.

[0038] Control the lifting frame 103 to rise. The lifting frame 103 drives the cutter sleeves 102 on both sides to slide into the cutter groove 81 through the hinge rod 106. The cutter sleeve 102 drives the adjustable cutting tool 10 to slide into the cutter groove 81. At this time, the fixed cutting tool 9 and the adjustable cutting tool 10 rotate independently and are linearly distributed. Then, control the slider 86 to slide downward. The slider 86 drives the worm 87 to descend. The worm 87 descends to mesh with all the worm wheels 101. Therefore, control the worm 87 to rotate. The worm 87 drives all the worm wheels 101 to rotate. The adjustable cutting tool 10 and the fixed cutting tool 9 rotate independently at the same time, and there is no need to set a separate drive. Therefore, the overall cutting head has a small volume and does not affect the fine machining of the concave surface.

[0039] Embodiment 3. On the basis of the above embodiment, it further includes that a cutting motor is fixedly installed inside the cutting shaft housing 6. The bottom of the output end of the cutting motor is fixedly installed with a cutting drive wheel 61. A sliding key 72 is arranged on the outer side of the cutting main shaft 7. A cutting tooth sleeve 73 is sleeved on the outer side of the cutting main shaft 7. A plurality of key grooves 732 are annularly opened inside the cutting tooth sleeve 73. The sliding key 72 is slidably connected in the key grooves 732. A telescopic hydraulic cylinder II 66 is fixedly installed inside the cutting shaft housing 6. The bottom of the telescopic end of the telescopic hydraulic cylinder II 66 is fixedly installed with a rotating ring. The rotating ring is rotatably installed on the top of the cutting tooth sleeve 73. A transmission shaft 62 is rotatably installed inside the cutting shaft housing 6. A transmission wheel 63 is fixedly installed on the upper half of the transmission shaft 62. A driving bevel gear 64 is fixedly installed on the lower half of the transmission shaft 62. One end of the worm 87 is fixedly installed with a driven bevel gear 89. When the slider 86 descends to the lowest position, the driven bevel gear 89 meshes with the driving bevel gear 64, and the transmission wheel 63 and the cutting drive wheel 61 can mesh on both sides of the cutting tooth sleeve 73.

[0040] During large-range cutting, the fixed cutting tool 9 and the adjustable cutting tool 10 are circularly distributed. At this time, the cutting tooth sleeve 73 is located below and only meshes with the cutting drive wheel 61, and the sliding key 72 is inserted into the key groove 732. Therefore, the cutting drive wheel 61 can drive the cutting main shaft 7 to rotate through the cutting tooth sleeve 73. The cutting main shaft 7 drives the fixed cutting tool 9 and the adjustable cutting tool 10 to rotate at the same time;

[0041] When performing fine straight cutting, control the lifting frame 103 to rise. The lifting frame 103 drives the cutter sleeves 102 on both sides to slide into the cutter groove 81 through the hinge rod 106. The cutter sleeve 102 drives the adjustable cutting tool 10 to slide into the cutter groove 81. At this time, the fixed cutting tool 9 and the adjustable cutting tool 10 rotate independently and are linearly distributed. Then, control the slider 86 to slide downward. The slider 86 drives the worm 87 to descend. The worm 87 descends to mesh with all the worm wheels 101, and the slider 86 drives the driven bevel gear 89 to descend. The driven bevel gear 89 meshes with the driving bevel gear 64. At the same time, control the telescopic hydraulic cylinder two 66 to operate. The telescopic hydraulic cylinder two 66 drives the cutting tooth sleeve 73 to rise through the rotating ring. The cutting tooth sleeve 73 rises to a position where it meshes with both the transmission wheel 63 and the cutting driving wheel 61 at the same time, and the sliding key 72 disengages from the key groove 732. At this time, the cutting driving wheel 61 drives the transmission wheel 63 to rotate through the cutting tooth sleeve 73, and the cutting main shaft 7 does not rotate. The transmission wheel 63 drives the driven bevel gear 89 to rotate through the transmission shaft 62 and the driving bevel gear 64. The driven bevel gear 89 drives the worm 87 to rotate. The worm 87 drives the adjustable cutting tool 10 and the fixed cutting tool 9 to rotate independently at the same time through the worm wheel 101. Through the setting of this embodiment, there is no need to separately set the drive of the worm 87 additionally, and the structure is more compact, ensuring that the cutting head part will not be too bulky.

[0042] Embodiment 4, on the basis of the above embodiment, further includes that a connecting sleeve 731 is arranged at the bottom of the cutting tooth sleeve 73, and a connecting column 104 is fixedly installed at the top of the lifting frame 103. The connecting column 104 is rotatably installed at the bottom of the connecting sleeve 731.

[0043] Further, a main shaft transmission cavity 71 is opened inside the cutting main shaft 7. The lifting frame 103 penetrates and is slidably connected into the main shaft transmission cavity 71. A reversing wheel 711 is rotatably installed inside the main shaft transmission cavity 71. An external straight tooth 105 is arranged on the outer side of the lifting frame 103. A toothed rod 88 is fixedly installed at the top of the slider 86. The toothed rod 88 and the external straight tooth 105 are respectively meshed on both sides of the reversing wheel 711. A support spring 810 is arranged between the slider 86 and the inner bottom of the chute 85.

[0044] During fine cutting in a straight line, the telescopic hydraulic cylinder II 66 is controlled to operate. The telescopic hydraulic cylinder II 66 drives the cutting tooth sleeve 73 to rise through a swivel ring. The cutting tooth sleeve 73 rises to a position where it meshes with both the transmission wheel 63 and the cutting drive wheel 61 simultaneously, and the sliding key 72 disengages from the keyway 732. At the same time, the cutting tooth sleeve 73 drives the lifting frame 103 to rise through the connecting sleeve 731 and the connecting column 104. The lifting frame 103 drives the tool sleeves 102 on both sides to slide into the tool groove 81 through the hinge rod 106. After the lifting frame 103 rises a certain distance, the external straight teeth 105 mesh with the reversing wheel 711. The external straight teeth 105 drive the reversing wheel 711 to rotate. The reversing wheel 711 drives the slider 86 to descend through the toothed rod 88. The slider 86 drives the worm 87 to descend. The worm 87 descends to mesh with all the worm wheels 101, and the slider 86 drives the driven bevel gear 89 to descend. The driven bevel gear 89 meshes with the driving bevel gear 64. Through this setting method, the worm wheels 101 will first close inwards, and then the worm 87 will descend. The worm 87 will not have movement interference with the worm wheels 101. Therefore, through the setting of this embodiment, only by setting the telescopic hydraulic cylinder II 66, the lifting and lowering of the cutting tooth sleeve 73, the lifting frame 103, and the slider 86 can be controlled simultaneously, and there will be no movement interference, and the structure is more compact.

[0045] Embodiment 5, on the basis of the above embodiment, further includes that a locking slot 74 is opened at the top of the cutting main shaft 7, and a locking component 65 is fixedly installed inside the cutting shaft housing 6. The locking component 65 is composed of an electric telescopic rod and a locking plug. The locking plug is fixedly installed at the telescopic end of the electric telescopic rod. When the locking plug is inserted into the locking slot 74, the driven bevel gear 89 and the driving bevel gear 64 are located on the same side.

[0046] Furthermore, guide holes 84 are opened on both sides of the cutting tool rest 8. A guide rod 107 is fixedly installed on the side of the tool sleeve 102 close to the tool groove 81. The guide rod 107 is inserted into the guide hole 84. A jack 108 is opened on the side of the tool sleeve 102 close to the tool groove 81. Sliding holes are opened on the outer sides of both the adjustable cutting tool 10 and the fixed cutting tool 9. A pin 109 is slidably connected inside the sliding hole. A plugging spring 110 is arranged between the pin 109 and the inner wall of the sliding hole. A socket 82 is opened in the upper half of the tool groove 81. The tool sleeve 102 can be inserted into the socket 82. A push rod 83 is arranged on the inner wall of the socket 82. Both the pin 109 and the push rod 83 can be inserted into the jack 108. Two groups of installation holes are opened inside the cutting tool rest 8. The fixed cutting tool 9 is rotatably installed in the installation holes. A through hole is penetrated between the installation hole and the socket 82. A clamping rod 811 is slidably connected inside the through hole. A clamping spring is arranged between the clamping rod 811 and the inner wall of the through hole.

[0047] Since the cutting spindle 7, the adjustable cutting tool 10 and the fixed cutting tool 9 are driven in the same way as in the above embodiment, when switching, it is necessary to lock the cutting spindle 7, the adjustable cutting tool 10 and the fixed cutting tool 9 respectively to ensure smooth cutting. If the existing locking structure is used and each is set and driven separately, it will also cause the cutting head to be too bulky.

[0048] Therefore, the setting of this embodiment needs to be adopted. During large-range cutting, the pin 109 in the fixed cutting tool 9 is inserted into the through hole under the action of the plugging spring 110, and the fixed cutting tool 9 cannot rotate. The pin 109 in the adjustable cutting tool 10 is inserted into the jack 108 under the action of the plugging spring 110, and the adjustable cutting tool 10 cannot rotate. At the same time, the locking plug is far away from the locking slot 74, and the cutting spindle 7 can rotate. At this time, both the adjustable cutting tool 10 and the fixed cutting tool 9 cannot rotate, and the cutting is stable.

[0049] During linear fine cutting, the adjustable cutting tool 10 slides into the tool groove 81, the tool sleeve 102 slides into the sleeve groove 82, and the ejector rod 83 is inserted into the jack 108 to eject the pin 109. At this time, the adjustable cutting tool 10 can rotate relative to the tool sleeve 102. At the same time, the tool sleeve 102 pushes the latch 811 to slide towards the fixed cutting tool 9, and the latch 811 ejects the pin 109 in the fixed cutting tool 9 out of the through hole. The fixed cutting tool 9 can rotate relative to the tool holder 8. At the same time, the electric telescopic rod drives the locking plug to be inserted into the locking slot 74 to lock the cutting spindle 7 and lock it at a fixed angle so that the driven bevel gear 89 can mesh with the driving bevel gear 64.

[0050] Therefore, through the setting of this embodiment, only the locking drive of the cutting spindle 7 needs to be set, and the adjustable cutting tool 10 and the fixed cutting tool 9 can complete the locking switch during the adjustment process.

[0051] Embodiment Six, on the basis of the above embodiment, further includes that the ejector rod 83 is made of a permanent magnet. Four groups of tool heads are fixedly installed at the bottoms of the adjustable cutting tool 10 and the fixed cutting tool 9. The four groups of tool heads are distributed in a ring shape. Four groups of sliding holes are provided and are correspondingly distributed with the tool heads.

[0052] This embodiment is about how to achieve tool head switching. After the linear fine cutting is completed, the cutting drive wheel 61 is controlled to drive the transmission wheel 63 to rotate through the cutting tooth sleeve 73, and the cutting main shaft 7 does not rotate. The transmission wheel 63 drives the driven bevel gear 89 to rotate through the transmission shaft 62 and the driving bevel gear 64. The driven bevel gear 89 drives the worm 87 to rotate. The worm 87 drives the adjustable cutting tool 10 and the fixed cutting tool 9 to rotate simultaneously through the worm wheel 101, and the rotation angle of the adjustable cutting tool 10 and the fixed cutting tool 9 each time is 90 degrees, so that the next set of pin columns 109 can rotate to the jack 108 position. When the adjustable cutting tool 10 is away from the tool groove 81, the adjustable cutting tool 10 is locked, and the other set of tool heads is located on the outermost side and participates in the next large-range cutting, with simple control.

[0053] Embodiment 7, on the basis of the above embodiment, further includes that the bracket 4 is composed of a circular ring and a toothed ring, and the circular ring and the toothed ring are connected by cross braces. The telescopic hydraulic cylinder 1 is fixedly installed on the cross braces. Both the circular ring and the toothed ring are rotatably installed on the top of the bracket 4. A driving motor is fixedly installed on the top of the bracket 4, and a driving wheel 41 is fixedly installed at the output end of the driving motor. The driving wheel 41 meshes with the toothed ring.

[0054] Through the setting of this embodiment, the rotation angle of the bracket 4 can be stably controlled, and further the cutting positions of the adjustable cutting tool 10 and the fixed cutting tool 9 can be controlled.

[0055] Embodiment 8, on the basis of the above embodiment, further includes that a cooling pipe 11 is fixedly installed on the outside of the cross brace, and a laser distance sensor is fixedly installed at the bottom of the cutting shaft housing 6.

[0056] Through the setting of the cooling pipe 11, the cutting part can be cooled and flushed. The setting of the laser distance sensor enables the device to monitor the cutting depth and facilitates fine adjustment during the processing.

[0057] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An impeller processing device for a Roots blower, comprising a frame (1), characterized in that, On both sides of the inner wall of the frame (1), three-jaw chucks (3) are installed. Inside the frame (1), a linear slide rail module (2) is fixedly installed. A bracket (4) is installed on the linear slide rail module (2). Inside the bracket (4), a rotating frame (42) is rotatably installed. On the outside of the rotating frame (42), a telescopic hydraulic cylinder I (5) is fixedly installed. The telescopic end of the telescopic hydraulic cylinder I (5) is fixedly installed with a cutting shaft housing (6). At the bottom of the cutting shaft housing (6), a cutting main shaft (7) is rotatably installed; At the bottom of the cutting main shaft (7), a cutting tool holder (8) is fixedly installed. Inside the cutting tool holder (8), two groups of fixed cutting tools (9) are rotatably installed. At the bottom of the cutting main shaft (7), a lifting frame (103) is slidably connected. At the bottom of the lifting frame (103), three hinge rods (106) are hinged. At the bottom ends of the three hinge rods (106), a tool sleeve (102) is hinged. Inside the tool sleeve (102), an adjustable cutting tool (10) is rotatably installed. The adjustable cutting tool (10) and the fixed cutting tool (9) can rotate independently. On both sides of the cutting tool holder (8), tool slots (81) are opened. The tool sleeve (102) can slide along the tool slots (81); On the tops of the adjustable cutting tool (10) and the fixed cutting tool (9), worm gears (101) are fixedly installed. On both sides of the cutting tool holder (8), sliding grooves (85) are opened. Inside the two sliding grooves (85), sliding blocks (86) are slidably connected. Between the two sliding blocks (86), a worm (87) is rotatably installed. When the adjustable cutting tool (10) and the fixed cutting tool (9) are arranged in a straight line side by side, the worm (87) can be meshed with multiple worm gears (101) at the same time. Inside the cutting shaft housing (6), a cutting motor is fixedly installed. At the bottom of the output end of the cutting motor, a cutting driving wheel (61) is fixedly installed. On the outside of the cutting main shaft (7), a sliding key (72) is arranged. A cutting gear sleeve (73) is sleeved on the outside of the cutting main shaft (7). Inside the cutting gear sleeve (73), multiple key grooves (732) are annularly opened. The sliding key (72) is slidably connected in the key grooves (732). Inside the cutting shaft housing (6), a telescopic hydraulic cylinder II (66) is fixedly installed. At the bottom of the telescopic end of the telescopic hydraulic cylinder II (66), a rotating ring is fixedly installed. The rotating ring is rotatably installed on the top of the cutting gear sleeve (73). Inside the cutting shaft housing (6), a transmission shaft (62) is rotatably installed. On the upper half of the transmission shaft (62), a transmission wheel (63) is fixedly installed. On the lower half of the transmission shaft (62), a driving bevel gear (64) is fixedly installed. At one end of the worm (87), a driven bevel gear (89) is fixedly installed. When the sliding block (86) descends to the lowest position, the driven bevel gear (89) is meshed with the driving bevel gear (64). The transmission wheel (63) and the cutting driving wheel (61) can be meshed on both sides of the cutting gear sleeve (73); A connecting sleeve (731) is provided at the bottom of the cutting tooth sleeve (73). A connecting column (104) is fixedly installed at the top of the lifting frame (103), and the connecting column (104) is rotatably installed at the bottom of the connecting sleeve (731). A main shaft transmission cavity (71) is formed inside the cutting main shaft (7). The lifting frame (103) penetrates and is slidably connected into the main shaft transmission cavity (71). A reversing wheel (711) is rotatably installed inside the main shaft transmission cavity (71). Outer straight teeth (105) are provided on the outer side of the lifting frame (103). A toothed rod (88) is fixedly installed at the top of the slider (86). The toothed rod (88) and the outer straight teeth (105) are respectively engaged on both sides of the reversing wheel (711). A support spring (810) is provided between the slider (86) and the inner bottom of the chute (85). Guide holes (84) are formed on both sides of the cutting tool holder (8). A guide rod (107) is fixedly installed on one side of the tool sleeve (102) close to the tool groove (81). The guide rod (107) is inserted into the guide hole (84). A jack (108) is formed on one side of the tool sleeve (102) close to the tool groove (81). Slide holes are formed on the outer sides of both the adjustable cutting tool (10) and the fixed cutting tool (9). A pin column (109) is slidably connected inside the slide hole. A plugging top spring (110) is provided between the pin column (109) and the inner wall of the slide hole. A socket groove (82) is formed in the upper half of the tool groove (81). The tool sleeve (102) can be inserted into the socket groove (82). A top rod (83) is provided on the inner wall of the socket groove (82). Both the pin column (109) and the top rod (83) can be inserted into the jack (108). Two groups of installation holes are formed inside the cutting tool holder (8). The fixed cutting tool (9) is rotatably installed in the installation hole. A through hole is formed through between the installation hole and the socket groove (82). A clamping rod (811) is slidably connected inside the through hole. A clamping spring is provided between the clamping rod (811) and the inner wall of the through hole.

2. The impeller processing device for a Roots blower according to claim 1, wherein, A locking slot (74) is formed at the top of the cutting main shaft (7). A locking assembly (65) is fixedly installed inside the cutting shaft housing (6). The locking assembly (65) consists of an electric telescopic rod and a locking plug. The locking plug is fixedly installed at the telescopic end of the electric telescopic rod. When the locking plug is inserted into the locking slot (74), the driven bevel gear (89) and the driving bevel gear (64) are located on the same side.

3. The impeller processing device for a Roots blower according to claim 2, characterized in that, The top rod (83) is made of a permanent magnet. Four groups of tool tips are fixedly installed at the bottom of both the adjustable cutting tool (10) and the fixed cutting tool (9). The four groups of tool tips are distributed in a ring shape. Four groups of slide holes are formed, and they are correspondingly distributed with the tool tips.

4. An impeller processing device for a Roots blower according to claim 1, characterized in that, The bracket (4) consists of a ring and a toothed ring. The ring and the toothed ring are connected by cross braces. The first telescopic hydraulic cylinder (5) is fixedly installed on the cross brace. Both the ring and the toothed ring are rotatably installed at the top of the bracket (4). A driving motor is fixedly installed at the top of the bracket (4). A driving wheel (41) is fixedly installed at the output end of the driving motor. The driving wheel (41) is engaged with the toothed ring.

5. The impeller processing device for a Roots blower according to claim 4, characterized in that, A cooling pipe (11) is fixedly installed on the outer side of the cross brace, and a laser distance sensor is fixedly installed at the bottom of the cutting shaft housing (6).

Images