A multi-station turntable-based motor housing drilling and tapping all-in-one machine

Abstract

The application belongs to the technical field of motor shell drilling and tapping, in particular to a motor shell drilling and tapping integrated machine based on a multi-station rotary table, which comprises a machining base, a fixed seat is fixedly connected to the machining base, four indexing grooves are formed in the fixed seat, a motor shell flange is fixed on a plurality of fixed discs which can rotate synchronously, step-by-step indexing machining is realized, the fixed discs are driven by a transmission assembly to sequentially pass through a feeding station, a drilling station, a first overturning and cleaning station, a tapping station, a second overturning and cleaning station and a discharging station, the fixed discs are overturned by 180 degrees when transferring between other stations except the feeding station to the drilling station and the discharging station to the feeding station, so that the blind hole opening faces downward, and the airflow or water flow is used for washing to realize complete chip removal from the bottom, the case that residual waste chips affect the precision or scratch the threads is reduced, two sets of machining devices are arranged at the drilling station and the tapping station, and double-hole machining can be synchronously completed, if more holes need to be machined, rotating components are additionally arranged for step-by-step machining, and the problem of residual waste chips in the blind hole is effectively solved.

Description

Technical Field

[0001] This invention belongs to the field of drilling and tapping technology for motor housings, specifically a multi-station rotary table-based integrated drilling and tapping machine for motor housings. Background Technology

[0002] The motor housing is usually made of die-cast aluminum and cast iron, and is in the form of a cylindrical or square structure with heat dissipation fins. Both ends are closed by end caps. The surface is sprayed with silver-gray or dark gray. The housing has junction box base, foot mounting holes and end cap threaded connection holes. The internal stator cavity is precision machined to ensure concentricity, and the external heat dissipation fins are evenly arranged to enhance the air convection cooling effect.

[0003] Traditional drilling and tapping machines used for machining motor housings are a type of combined special-purpose machine tool, typically consisting of a multi-axis power head, pneumatic clamps, and an indexing table. During operation, manual loading and unloading of materials and starting of the cycle are required. The machine clamps the workpiece hydraulically, and then multiple power heads simultaneously perform drilling and tapping from different directions.

[0004] When machining blind holes on the flange end face of a motor housing, the traditional process usually involves two steps on the same drilling and tapping machine. First, the flange face is positioned and locked by a fixture. The multi-axis drilling power head drives the twist drill to feed rapidly. After reaching the preset blind hole depth, the drill retracts to form the bottom hole and retain the thread depth. Then, without disassembling the workpiece, the worktable is switched to the tapping station, a spiral groove tap is installed, and the tap is inserted into the bottom of the bottom hole at a lower speed and a constant feed ratio. When it reaches the bottom of the blind hole, it automatically reverses and exits, thus completing the internal thread formation. The entire process relies on mechanical stops and limit switches to control the depth, and the chips at the bottom of the hole need to be cleaned frequently to prevent the tap from breaking.

[0005] In modern industrial production, when drilling and tapping blind holes in cast one-piece motor housing flanges, a drilling and tapping machine is usually used. This equipment can complete the drilling and tapping operations of the motor housing flange on the same machine, which can not only improve production efficiency but also simplify the operation process. However, when drilling blind holes, due to the non-through nature of the process, waste chips are easily left inside the blind holes during the drilling and tapping process. These waste chips left in the blind holes can not only affect the processing accuracy of the product but also cause difficulties in subsequent processing.

[0006] Therefore, the present invention provides an integrated drilling and tapping machine for motor housings based on a multi-station turntable. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0008] The technical solution adopted by this invention to solve its technical problem is as follows: A multi-station rotary table-based integrated drilling and tapping machine for motor housings includes a processing base; a fixed seat is fixedly connected to the processing base; four indexing slots are provided on the fixed seat; a hexagonal prism is fixedly connected to the center of the fixed seat; four transition rods are fixedly connected to the hexagonal prism, and the four transition rods are respectively located above the four indexing slots; multiple fixed discs are provided on the fixed seat; a transmission assembly is provided on the fixed seat, which is used to connect the multiple fixed discs and drive them to rotate and flip; two support frames are fixedly connected to the processing base; a drill and a tap are fixedly connected to the two support frames respectively, and two of each drill and tap are provided.

[0009] Preferably, the transmission assembly includes a rotating drum, a rotating rod, a short plate, a round rod, a gear ring plate, a first servo motor, and a gear; the rotating drum is rotatably connected to a fixed base; multiple rotating rods are rotatably connected to the rotating drum, and one end of each rotating rod is fixedly connected to one end of a fixed disk; the short plate is fixedly connected to the end of the rotating rod away from the fixed disk; two round rods are fixedly connected to the end of the fixed disk away from the rotating rod; the gear ring plate is fixedly connected to the outside of the rotating drum; the first servo motor is fixedly connected to a machining base; the gear is fixedly connected to the output end of the first servo motor, and the gear can mesh and rotate with the gear ring plate.

[0010] Preferably, two collection boxes are fixedly connected to the processing machine base; a No. 1 electric cylinder is fixedly connected inside the processing machine base near the collection boxes; a sliding plate is fixedly connected to the output end of the No. 1 electric cylinder; multiple No. 1 air ducts are provided on the sliding plate; a No. 1 bend hole and a No. 1 top hole are respectively opened on the side and top of the No. 1 air duct, and multiple No. 1 bend holes are provided; an air blowing assembly is provided on the sliding plate, which is used to deliver air to the No. 1 air duct to blow out and clean the waste chips in the blind hole.

[0011] Preferably, the air blowing assembly includes an air pump, a distribution box, an air guide pipe, and a fixed cylinder; the air pump is fixedly connected inside the sliding plate; the distribution box is fixedly connected to the output end of the air pump; multiple air guide pipes are fixedly connected to the distribution box; multiple fixed cylinders are fixedly connected to the sliding plate, and the first air duct is slidably connected inside the fixed cylinder through a first elastic element, and the air pump can be connected to the first air duct through the distribution box, the air guide pipe, and the fixed cylinder.

[0012] Preferably, a second air duct is slidably connected to the first air duct; the second air duct has a second bend hole and a second top hole respectively on its side and top, and there are multiple second bend holes; a second elastic element is fixedly connected between the inner wall of the second top hole and the top of the first air duct.

[0013] Preferably, a second servo motor is fixedly connected inside the fixed disk; a wheel is fixedly connected to the output end of the second servo motor; multiple anti-slip pads are fixedly connected to the wheel; a center plate is fixedly connected to the center of the wheel; and side clamping blocks are slidably connected to both sides of the center plate through a fourth elastic element, and the top surface of the side clamping blocks is set as an inclined surface.

[0014] Preferably, a threaded rod is threadedly connected to the center plate; a sliding seat is slidably connected to the inner wall of the center plate, and the bottom end of the threaded rod is rotatably connected to the sliding seat; both sides of the sliding seat are slidably connected to a top pressure block through a No. 5 elastic element, and the top surface of the top pressure block is set as an inclined surface.

[0015] Preferably, the top of the sliding plate is slidably connected to a pressure plate at the center, and the pressure plate can be located below the threaded rod; a third elastic element is fixedly connected between the bottom of the pressure plate and the inner wall of the sliding plate.

[0016] Preferably, a second electric cylinder is fixedly connected inside the processing machine base; a connecting plate is fixedly connected to the output end of the second electric cylinder; and support blocks are fixedly connected to both ends of the connecting plate, with the two support blocks located below the drill and the tap, respectively.

[0017] Preferably, the top surface of the sliding plate is provided with a conical surface; the plurality of No. 1 bend holes are arranged in five rows from top to bottom, and the five rows of No. 1 bend holes are located at the top of the No. 1 air duct.

[0018] The beneficial effects of this invention are as follows: 1. The present invention discloses a multi-station rotary table-based integrated drilling and tapping machine for motor housings. By fixing the motor housing flange onto multiple synchronously rotating fixed discs, step-by-step indexing processing is achieved. The transmission component drives the fixed discs sequentially through the loading, drilling, first-stage rotating cleaning, tapping, second-stage rotating cleaning, and unloading stations. Except for the loading to drilling and unloading to loading stages, the fixed discs rotate 180 degrees during transfer between other stations, so that the blind hole opening faces downwards. Combined with airflow or water flow flushing, chips are thoroughly removed from the bottom, reducing the impact of residual chips on accuracy or scratching of threads. Two sets of processing tools are configured for each of the drilling and tapping stations, which can simultaneously complete the processing of two holes. If more holes need to be processed, a rotating component is added to perform the process in steps, effectively solving the problem of residual chips in blind holes.

[0019] 2. The present invention discloses a multi-station rotary table-based integrated drilling and tapping machine for motor housings. Compressed air is pumped into a distribution box and then distributed to various fixed cylinders via multiple air guide pipes. Finally, the air is blown out from the top of the corresponding No. 1 air duct to remove debris from blind holes that did not fall due to gravity. When the number of blind holes to be cleaned is less than the number of No. 1 air ducts, the No. 1 air duct without blind holes will compress the No. 1 elastic element and retract along the fixed cylinder when it contacts the flange, thereby reducing rigid impact and protecting the equipment and workpiece. Simultaneously, this elastic telescopic structure can adapt to blind holes of different depths, enhancing the equipment's versatility. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the structure of the collection box in this invention; Figure 3 This is a schematic diagram of the structure of the fixing base in this invention; Figure 4 This is a schematic diagram of the structure of the wheel in this invention; Figure 5 This is a schematic diagram of the sliding plate in this invention; Figure 6 This is a partial structural cross-sectional view of the sliding plate in this invention; Figure 7 This is a schematic diagram of the connecting plate in this invention.

[0022] In the diagram: 1. Machining base; 11. Fixed base; 12. Hexagonal prism; 13. Transition rod; 14. Fixed plate; 15. Support frame; 16. Drill; 17. Tapping tool; 2. Rotary drum; 21. Rotating rod; 22. Short plate; 23. Round rod; 24. Gear ring plate; 25. Servo motor No. 1; 26. Gear; 3. Collection box; 31. Electric cylinder No. 1; 32. Sliding plate; 33. Air duct No. 1; 34. Bend No. 1; 35. 1. Top hole No. 1; 4. Air pump; 41. Diverter box; 42. Air guide pipe; 43. Fixed cylinder; 5. No. 2 air duct; 51. No. 2 bend; 52. No. 2 top hole; 53. No. 2 elastic element; 6. Pressure plate; 61. No. 3 elastic element; 7. Wheel; 71. Anti-slip mat; 72. Center plate; 73. Side clamping block; 8. Threaded rod; 81. Sliding seat; 82. Top pressure block; 9. No. 2 electric cylinder; 91. Connecting plate; 92. Support block. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 4As shown in the embodiment of the present invention, a multi-station rotary table-based integrated drilling and tapping machine for motor housings includes a processing base 1; a fixed seat 11 is fixedly connected to the processing base 1; four indexing slots are formed on the fixed seat 11; a hexagonal prism 12 is fixedly connected to the fixed seat 11 at its center; four transition rods 13 are fixedly connected to the hexagonal prism 12, and the four transition rods 13 are respectively located above the four indexing slots; multiple fixed discs 14 are provided on the fixed seat 11; a transmission assembly is provided on the fixed seat 11, which is used to connect the multiple fixed discs 14 and drive them to rotate and flip; two support frames 15 are fixedly connected to the processing base 1; the two support frames 15... Drilling tool 16 and tapping tool 17 are fixedly connected to the machine base 1, and there are two of each. When using the drilling and tapping integrated machine to perform blind hole drilling and tapping on the motor housing flange, the processing machine base 1 is equipped with six workstations and six rotating and flipping fixed plates 14. The six workstations correspond to the loading position, drilling position, first flipping and cleaning position, tapping position, second flipping and cleaning position, and unloading position, respectively. The motor housing flange is fixed and limited on the fixed plates 14. The traditional fixing method can be used for the limiting. Then, the transmission component drives multiple fixed plates 14 to rotate synchronously. The fixed plate 14 originally located at the loading position rotates to the drilling position, and the other fixed plates 14 also step one workstation. After the motor housing flange is drilled at the drilling position, the transmission assembly moves the motor housing flange to the next station. This process continues until the flange reaches the unloading position, at which point the limit is released and the flange is removed. It is important to note that when the motor housing flange reaches the first flip-and-clean position at the drilling position, the first flip-and-clean position at the tapping position, the tapping position at the second flip-and-clean position, and the second flip-and-clean position at the unloading position, the transmission assembly, in conjunction with the four indexing slots on the fixed base 11 and the four transition rods 13 on the hexagonal prism 12, needs to flip the passing fixed plate 14. The indexing slots have a U-shaped cross-section, and both sides are sloped. The fixed plate 14 flips each time... The rotation angle is 180 degrees. The fixed plate 14 does not need to be rotated only when the unloading position reaches the loading position and the loading position reaches the drilling position. After drilling and tapping, the motor housing flange is rotated downward to discharge the waste in the blind hole. It can be equipped with airflow or water flow for flushing. Compared with the traditional method of cleaning the blind hole from the top, the waste is cleaned from the bottom after rotation, which can effectively reduce the waste residue at the bottom of the blind hole from affecting the machining accuracy and reduce the probability of waste scratching the tapped thread. At the same time, the multi-station turntable is combined with the stepping indexing machining. Drilling, cleaning, tapping and cleaning are completed continuously in sequence, which ensures the processing efficiency and the stability of the machining accuracy of each process. Meanwhile, two drill bits 16 and two tapping bits 17 are respectively mounted on the two support frames 15 for drilling and tapping the motor housing flange. When the motor housing flange is in the drilling position on the fixed plate 14, the two drill bits 16 simultaneously drill two holes in the motor housing flange. When the motor housing flange is in the tapping position on the fixed plate 14, the two drill bits 16 simultaneously tap two holes in the motor housing flange. If the opening on the motor housing flange is larger than two holes, a rotating component is required to rotate the motor housing flange for drilling and tapping. Compared with the traditional single-hole sequential processing method, the dual-hole synchronous processing can reduce processing time and improve overall processing efficiency. At the same time, the two processing stations are set separately, which also reduces the mutual interference between drilling and tapping processes, making it easier to ensure processing accuracy and reduce the superposition of errors between processes. By flipping the chip removal and combining it with two chip cleaning processes, the problem of residual waste chips in blind hole processing is solved without taking up too much extra processing time.

[0025] The transmission assembly includes a rotating drum 2, rotating rods 21, a short plate 22, round rods 23, a gear ring plate 24, a first servo motor 25, and a gear 26. The rotating drum 2 is rotatably connected to a fixed base 11. Multiple rotating rods 21 are rotatably connected to the rotating drum 2, with one end of each rod fixed to one end of a fixed disk 14. The short plate 22 is fixed to the end of the rotating rod 21 away from the fixed disk 14. Two round rods 23 are fixed to the end of the fixed disk 14 away from the rotating rod 21. The gear ring plate 24 is fixed to the outside of the rotating drum 2. The first servo motor 25 is fixed to a machining base 1. The gear 26 is fixed to the output end of the first servo motor 25 and can mesh with the gear ring plate 24 to rotate. When multiple fixed disks 14 are rotated and controlled to flip, the output end of the first servo motor 25 drives the gear 26 to rotate. The 26 synchronously drive the meshing gear ring plate 24 and the rotating drum 2 to rotate. Multiple rotating rods 21 rotate synchronously with the rotating drum 2. Some rotating rods 21, under the cooperation of the short plate 22, two round rods 23, the indexing groove, and the transition rod 13, drive the fixed disk 14 connected to the rotating rod 21 to rotate 180 degrees. During the rotation of the rotating rod 21 with the rotating drum 2, the round rod 23 near the indexing groove falls into the bottom of the indexing groove first through the slope. This round rod 23 is then limited by the indexing groove. The other round rod 23 is flipped over the transition rod 13 by the short plate 22 and the rotating rod 21. As the rotating drum 2 continues to rotate, the round rod 23 located in the indexing groove disengages, realizing the flipping of the fixed disk 14. The flipping operation of the fixed disk 14 can be completed by relying on the rotation power of the rotating drum 2 itself, which can stably complete the flipping and chip removal action during each processing flow, ensuring the reliability of chip removal.

[0026] like Figures 1 to 3 , Figure 5 , Figure 6As shown, two collection boxes 3 are fixedly connected to the processing machine base 1; a first electric cylinder 31 is fixedly connected to the inside of the processing machine base 1 near the collection box 3; a sliding plate 32 is fixedly connected to the output end of the first electric cylinder 31; multiple first air ducts 33 are provided on the sliding plate 32; a first bend hole 34 and a first top hole 35 are respectively opened on the side and top of the first air duct 33, and multiple first bend holes 34 are provided; an air blowing assembly is provided on the sliding plate 32, which is used to blow air to the first air duct 33 to blow out and clean the waste in the blind hole; after drilling and tapping the motor housing flange, the motor housing flange is flipped upside down to clean the waste in the blind hole. During the flipping process of the motor housing flange, some waste in the blind hole falls onto the collection box 3 due to its own gravity and is collected. After the motor housing flange is flipped, the output end of the No. 1 electric cylinder 31 drives the sliding plate 32 and multiple No. 1 air ducts 33 to slide upward, inserting the multiple No. 1 air ducts 33 into multiple blind holes respectively. The air blowing component starts to work and supplies air into the multiple No. 1 air ducts 33. The air is blown out from multiple No. 1 bend holes 34 and No. 1 top holes 35. As the output end of the No. 1 electric cylinder 31 continues to retract, it can continuously blow air from top to bottom to remove chips from the blind holes, sweeping out the waste chips that have not fallen naturally under the action of gravity from the blind holes. Combined with the flipping and inverting chip removal method, it can improve the cleaning effect of waste chips inside the blind holes and reduce waste chip residue. Moreover, the air blowing operation is completed in the gap of the motor housing flange station, without occupying the time of a separate processing step, ensuring the overall processing rhythm.

[0027] The air blowing assembly includes an air pump 4, a distribution box 41, air guide pipes 42, and a fixed cylinder 43. The air pump 4 is fixedly connected inside the sliding plate 32. The distribution box 41 is fixedly connected to the output end of the air pump 4. Multiple air guide pipes 42 are fixedly connected to the distribution box 41. Multiple fixed cylinders 43 are fixedly connected to the sliding plate 32. A first air duct 33 is slidably connected inside the fixed cylinder 43 through a first elastic element, and the air pump 4 can be connected to the first air duct 33 through the distribution box 41, air guide pipes 42, and fixed cylinder 43. When cleaning the blind hole of the motor housing flange with air blowing, the air pump 4 pumps air into the distribution box 41, and then the multiple air guide pipes 42 blow air into the distribution box. The gas inside 41 is diverted into multiple fixed cylinders 43. The gas is then sent through the fixed cylinders 43 to the top of multiple No. 1 air ducts 33 and blown out, sweeping away the waste debris that did not fall naturally under gravity from the blind holes. At the same time, when cleaning blind holes with fewer than the number of No. 1 air ducts 33, if some No. 1 air ducts 33 do not have blind holes at their tops during insertion, the No. 1 air ducts 33 can compress the No. 1 elastic element and contract inward along the fixed cylinders 43 to buffer the impact, reducing the possibility of the No. 1 air ducts 33 rigidly hitting the motor housing flange and causing damage to the equipment or workpiece. Furthermore, the elastic contraction structure can also adapt to blind hole cleaning operations of different depths within the range, improving the adaptability of the equipment.

[0028] A second air duct 5 is slidably connected to the first air duct 33. The second air duct 5 has a second bend 51 and a second top hole 52 respectively on its side and top, and multiple second bends 51 are provided. A second elastic element 53 is fixedly connected between the inner wall of the second top hole 52 and the top of the first air duct 33. When the number of first air ducts 33 exceeds the number of blind holes in the motor housing flange, some first air ducts 33 will retract into the fixed cylinder 43 for temporary storage. However, since the excess first air ducts 33 can still exhaust gas, this easily leads to gas waste. The second air duct 5, in conjunction with the second elastic element 53, is slidably installed on the top of the first air duct 33. When inserted into the blind hole, no... The area with blind holes is squeezed by the excess No. 2 air duct 5, causing No. 2 air duct 5 to compress and slide down the No. 2 elastic element 53. The surface of the motor housing flange blocks the No. 2 top hole 52. Multiple No. 2 bend holes 51 and multiple No. 1 bend holes 34 are misaligned, causing multiple No. 2 bend holes 51 and multiple No. 1 bend holes 34 to self-seal and not exhaust. However, the No. 2 air duct 5 that enters the blind hole exhausts air from multiple No. 2 bend holes 51, No. 1 bend holes 34 and one No. 2 top hole 52. This satisfies the automatic sealing and exhaust of the excess No. 1 air duct 33 that is not inserted into the blind hole, reducing unnecessary gas waste and reducing air supply loss during air blowing and cleaning, while still ensuring normal exhaust cleaning of the air nozzle inserted into the blind hole.

[0029] like Figures 1 to 4 As shown, a second servo motor is fixedly connected inside the fixed disk 14; a wheel 7 is fixedly connected to the output end of the second servo motor; multiple anti-slip pads 71 ​​are fixedly connected to the wheel 7; a center plate 72 is fixedly connected to the center plate 7 at its center; side clamping blocks 73 are slidably connected to both sides of the center plate 72 via elastic elements of the fourth type, and the top surface of the side clamping blocks 73 is set as an inclined surface; when the motor housing flange is fixed to the fixed disk 14, the center plate 72 is fixed at the center of the wheel 7, and the motor housing flange is inserted with the center plate 72 as the center. The inner side of the motor housing flange presses against the inclined surface of the two side clamping blocks 73, and the elastic elements of the fourth type contract and are subjected to force, pressing the two side clamping blocks 73 according to the inner diameter of the motor housing flange. Inside the center plate 72, two side clamping blocks 73 clamp the inner wall of the motor housing flange, thus fixing the motor housing flange. When drilling or tapping the motor housing flange, the output end of the No. 2 servo motor built into the fixed plate 14 drives the wheel 7 to rotate (the No. 2 servo motor is not shown in the figure). The wheel 7 synchronously drives the motor housing flange to rotate, which facilitates drilling and tapping. Multiple anti-slip pads 71 ​​are used to assist in anti-slip of the motor housing flange, reducing the slippage and displacement of the motor housing flange during rotation processing, ensuring the stability of processing positioning. At the same time, this internal clamping method is suitable for clamping motor housings with different inner diameters, reducing the frequency of changing clamping fixtures and improving the versatility of the equipment.

[0030] A threaded rod 8 is threadedly connected to the center plate 72; a sliding seat 81 is slidably connected to the inner wall of the center plate 72, and the bottom end of the threaded rod 8 is rotatably connected to the sliding seat 81; both sides of the sliding seat 81 are slidably connected to a pressure block 82 via a No. 5 elastic element, and the top surface of the pressure block 82 is set as an inclined surface; when fixing the motor housing flange, the position of the rotating threaded rod 8 on the center plate 72 is adjusted according to the center thickness of the motor housing flange being processed, thereby driving the sliding seat 81 to slide up and down, controlling the pressure block 82 to limit the thickness of the motor housing flange, and the motor housing flange is inserted into the center. When plate 72 is pressed, the motor housing flange first presses the inclined surface of the top pressure block 82. The top pressure block 82 slides into the sliding seat 81 and presses the No. 5 elastic element to contract and bear force. Then the motor housing flange continues to press the side clamping block 73 to make it slide back until the two side clamping blocks 73 support the inner wall of the motor housing flange and the two top pressure blocks 82 limit the end center of the motor housing flange. This can not only cooperate with the side clamping block 73 to stably clamp and position the motor housing flange, reducing the axial movement of the motor housing flange during processing, but also adapt to motor housings of different thicknesses and specifications, thus improving the compatibility range of the equipment clamping.

[0031] like Figures 1 to 6 As shown, the top of the sliding plate 32 is slidably connected to the pressure plate 6 at the center, and the pressure plate 6 can be located below the threaded rod 8; the bottom of the pressure plate 6 is fixedly connected to the inner wall of the sliding plate 32 with a third elastic element 61; when the sliding plate 32 rises with the output end of the first electric cylinder 31, the excessively long threaded rod 8 is likely to hit the sliding plate 32, making it difficult for the first air duct 33 to penetrate into the blind hole to clean the waste. By using the pressure plate 6 in conjunction with the third elastic element 61 to slide at the center of the sliding plate 32, the position of the threaded rod 8 is such that when the sliding plate 32 rises, the excessively long threaded rod 8 is squeezed by the pressure plate 6 and makes it slide down. The third elastic element 61 contracts and is subjected to force, leaving corresponding clearance space. This can not only avoid rigid impact causing damage to the workpiece and equipment parts, but also ensure that each first air duct 33 can be smoothly inserted into the blind hole to complete the blowing cleaning operation.

[0032] like Figures 1 to 3 , Figure 7As shown, a second electric cylinder 9 is fixedly connected inside the machining base 1; a connecting plate 91 is fixedly connected to the output end of the second electric cylinder 9; support blocks 92 are fixedly connected to both ends of the connecting plate 91, and the two support blocks 92 are respectively located below the drill 16 and the tap 17; when drilling and tapping the motor housing flange, the output end of the second electric cylinder 9 drives the two support blocks 92 connected to the connecting plate 91 to push upward, supporting the two support blocks 92 at the bottom of the two fixed plates 14 at the drilling and tapping positions, providing strong support for drilling and tapping. After drilling and tapping are completed, the output end of the second electric cylinder 9 drives the two support blocks 92 to reset, ensuring the smooth movement of the workpiece. By supporting and pressing the bottom of the workpiece at the drilling and tapping position, the amplitude of workpiece shaking during drilling and tapping can be reduced, the generation of machining vibration marks can be reduced, and the machining accuracy of drilling and tapping can be guaranteed.

[0033] like Figures 1 to 6 As shown, the top surface of the sliding plate 32 is provided with a conical surface; the multiple No. 1 bend holes 34 are arranged in five rows from top to bottom, and the five rows of No. 1 bend holes 34 are located at the top of the No. 1 air duct 33; when the output end of the No. 1 electric cylinder 31 drives the sliding plate 32 to rise, the waste material blown down from the blind hole can be guided by the top conical surface of the sliding plate 32. As the sliding plate 32 is higher than the collection box 3, the waste material on the conical surface of the sliding plate 32 falls obliquely onto the collection box 3 for collection, which facilitates the unified cleaning of waste material, ensures the convenience of cleaning waste material, and also ensures the cleanliness of the processing area; and the five rows of No. 1 bend holes 34 are located at the top of the No. 1 air duct 33, so that after the gas enters the No. 1 air duct 33, it is blown out by the evenly distributed five rows of No. 1 bend holes 34, which can sweep the waste material attached to different depths on the inner wall of the blind hole from multiple directions, ensuring the cleaning effect inside the blind hole.

[0034] Working Process: When using the drilling and tapping integrated machine to perform blind hole drilling and tapping on the motor housing flange, the processing base 1 is equipped with six workstations and six rotating and flipping fixed plates 14. The six workstations correspond to the loading position, drilling position, first flipping and cleaning position, tapping position, second flipping and cleaning position, and unloading position, respectively. The motor housing flange is fixed and limited on the fixed plates 14, which can be fixed in a traditional way. Then, the transmission component drives the multiple fixed plates 14 to rotate synchronously. The fixed plate 14 originally located at the loading position rotates to the drilling position, and the other fixed plates 14 also move one workstation in the same way. After the motor housing flange is drilled at the drilling position, the transmission component drives the motor housing flange to move to the next workstation again, and so on for multiple steps. The machining process continues at the workstation until the material is removed from the unloading position. It's important to note that when the motor housing flange reaches the first flip-and-clean position from the drilling position, the first flip-and-clean position from the tapping position, the tapping position from the second flip-and-clean position, and the second flip-and-clean position from the unloading position, the transmission assembly, in conjunction with the four indexing slots on the fixed base 11 and the four transition rods 13 on the hexagonal prism 12, needs to flip the fixed plate 14. The indexing slots have a U-shaped cross-section, and both sides are sloped. The fixed plate 14 flips 180 degrees each time. Flipping the fixed plate 14 is only unnecessary when the unloading position reaches the loading position and when the loading position reaches the drilling position. After drilling and tapping, the motor housing flange... All processes employ a downward tilting method to remove waste chips from blind holes. This allows for the addition of airflow or water flow for flushing. Compared to the traditional method of cleaning blind holes from the top, tilting the machine to clean from the bottom is more thorough, effectively reducing waste chip residue at the bottom of the blind hole that could affect machining accuracy and lowering the probability of waste chips scratching the tapped threads. Simultaneously, the multi-station rotary table, combined with step-by-step indexing, allows drilling, cleaning, tapping, and re-cleaning to be completed sequentially, ensuring processing efficiency and the stability of machining accuracy at each stage. Furthermore, two drill bits 16 and two tapping bits 17 are respectively mounted on the two support frames 15 for drilling and tapping the motor housing flange. When the motor housing flange is in the drilling position on the fixed plate 14, the two drill bits... The two drill bits 16 simultaneously perform double-hole drilling on the motor housing flange. When the motor housing flange is in the tapping position on the fixed plate 14, the two drill bits 16 simultaneously perform double-hole tapping on the motor housing flange. If the opening on the motor housing flange is larger than two holes, a rotating component needs to be added to rotate the motor housing flange for drilling and tapping. Compared with the traditional single-hole sequential processing method, the dual-hole synchronous processing can reduce processing time and improve overall processing efficiency. At the same time, the two processing stations are set separately, which also reduces the mutual interference between drilling and tapping processes, making it easier to ensure processing accuracy and reduce the superposition of errors between processes. By flipping the chip removal and combining it with two chip removal processes, the problem of residual waste chips in blind hole processing is solved without taking up too much extra processing time.When multiple fixed disks 14 are rotated and controlled to flip, the output end of the first servo motor 25 drives the gear 26 to rotate. The gear 26 then synchronously drives the meshing gear ring plate 24 and the rotating drum 2 to rotate. Multiple rotating rods 21 rotate synchronously with the rotating drum 2. Some rotating rods 21, under the cooperation of the short plate 22, two round rods 23, the indexing groove, and the transition rod 13, drive the fixed disks 14 connected to the rotating rods 21 to flip 180 degrees. During the rotation of the rotating rods 21 with the rotating drum 2, the round rod 23 near the indexing groove falls into the bottom of the indexing groove first through the slope. This round rod 23 is then limited by the indexing groove. The other round rod 23 flips over the transition rod 13 through the short plate 22 and the rotating rod 21. As the rotating drum 2 continues to rotate, the round rod 23 located in the indexing groove disengages, realizing the flipping of the fixed disks 14. The flipping operation of the fixed disks 14 can be completed by relying on the rotation power of the rotating drum 2 itself. It can stably complete the flipping and chip removal action during each processing flow, ensuring the reliability of chip removal. After drilling and tapping the motor housing flange, the flange is flipped over to clean the blind hole debris. During the flipping process, some debris in the blind hole falls to the collection box 3 due to its own gravity. After the flipping is complete, the output end of the first electric cylinder 31 drives the sliding plate 32 and multiple first air ducts 33 to slide upward, inserting the multiple first air ducts 33 into the multiple blind holes. The air blowing component starts working to supply air into the multiple first air ducts 33. The air is blown out from the multiple first bends 34 and the first top hole 35. As the output end of the first electric cylinder 31 continues to retract, it can continuously blow air from top to bottom to remove debris from the blind hole, sweeping out the debris that did not fall naturally under gravity. Combined with the inverted chip removal method, the cleaning effect of waste chips inside the blind holes can be improved, and the waste chip residue can be reduced. Moreover, the air blowing operation is completed during the interval of the motor housing flange dwell position, without the need for additional processing time, ensuring the overall processing rhythm. When cleaning the blind holes of the motor housing flange with air blowing, the working pump of air 4 pumps air into the distribution box 41, and then the air in the distribution box 41 is divided into multiple fixed cylinders 43 by multiple air guide pipes 42. The air is sent through the fixed cylinders 43 to the top of multiple No. 1 air ducts 33 and blown out, sweeping out the waste chips that have not fallen naturally under the action of gravity from the blind holes. At the same time, when cleaning blind holes with fewer than the number of No. 1 air ducts 33, the No. 1 air ducts 33 are inserted into the blind holes. During the process, if some of the No. 1 ventilation ducts 33 do not have blind holes at the top, the No. 1 ventilation duct 33 can compress the No. 1 elastic element and shrink inward along the fixed cylinder 43 to buffer the impact, reducing the possibility of the No. 1 ventilation duct 33 rigidly hitting the motor housing flange and causing damage to the equipment or workpiece. Furthermore, the elastic shrinking structure can also adapt to blind hole cleaning operations of different depths within the range, improving the equipment's adaptability. When the number of No. 1 ventilation ducts 33 exceeds the number of blind holes in the motor housing flange, some of the No. 1 ventilation ducts 33 will retract into the fixed cylinder 43 for temporary storage. However, since the excess No. 1 ventilation ducts 33 can still exhaust gas, it is easy to cause gas waste. Therefore, the No. 2 ventilation duct 5, in conjunction with the No. 2 elastic element 53, is slidably installed on top of the No. 1 ventilation duct 33. As it is inserted into the blind hole... The area on the motor housing flange without blind holes is squeezed by the excess part of the No. 2 air duct 5, causing the No. 2 air duct 5 to compress the No. 2 elastic element 53 and slide down. The surface of the motor housing flange blocks the No. 2 top hole 52. Multiple No. 2 bend holes 51 and multiple No. 1 bend holes 34 are misaligned, causing multiple No. 2 bend holes 51 and multiple No. 1 bend holes 34 to self-seal and not exhaust. The No. 2 air duct 5 that enters the blind hole exhausts air from multiple No. 2 bend holes 51, No. 1 bend holes 34 and one No. 2 top hole 52. This can satisfy the automatic sealing and exhaust of the excess No. 1 air duct 33 that is not inserted into the blind hole, reduce unnecessary gas waste, reduce air supply loss during air blowing and cleaning, and still ensure normal exhaust cleaning of the air nozzle inserted into the blind hole. When the motor housing flange is fixed to the fixed plate 14, the center plate 72 is fixed at the center of the wheel 7. The motor housing flange is inserted with the center plate 72 as the center. The inner side of the motor housing flange presses against the inclined surfaces of the two side clamps 73. The fourth elastic element contracts and is subjected to force. According to the inner diameter of the motor housing flange, the two side clamps 73 are pressed into the center plate 72. The two side clamps 73 clamp the inner wall of the motor housing flange, which serves to fix the motor housing flange. When drilling or tapping the motor housing flange, the output end of the second servo motor built into the fixed plate 14 drives the wheel 7 to rotate. The second servo motor is not shown in the figure. The wheel 7 synchronously drives the motor housing flange to rotate, which facilitates drilling and tapping. Multiple anti-slip pads 71 ​​are used to assist in anti-slip of the motor housing flange, reduce the slippage and displacement of the motor housing flange during rotation processing, and ensure the stability of processing positioning. At the same time, this internal support clamping method is suitable for clamping motor housings with different inner diameters, reducing the cost of machining. This reduces the frequency of changing clamping fixtures and improves the versatility of the equipment. When fixing the motor housing flange, the position of the rotating threaded rod 8 on the center plate 72 is adjusted according to the center thickness of the motor housing flange being processed. This drives the sliding seat 81 to slide up and down, controlling the top pressure block 82 to limit the thickness of the motor housing flange. When the motor housing flange is inserted into the center plate 72, the motor housing flange first presses the inclined surface of the top pressure block 82. The top pressure block 82 slides into the sliding seat 81 and presses the No. 5 elastic element to contract and bear force. Then, the motor housing flange continues to press the side clamping block 73 to make it slide back until the two side clamping blocks 73 support the inner wall of the motor housing flange and the two top pressure blocks 82 limit the end center of the motor housing flange. This can not only cooperate with the side clamping block 73 to stably clamp and position the motor housing flange, reducing the axial movement of the motor housing flange during processing, but also adapt to motor housings of different thicknesses, improving the adaptability of the equipment clamping. When the sliding plate 32 rises with the output end of the first electric cylinder 31, the excessively long threaded rod 8 is likely to hit the sliding plate 32, making it difficult for the first air duct 33 to penetrate into the blind hole to clean the waste. By using the pressure plate 6 in conjunction with the third elastic element 61 to slide at the center of the sliding plate 32, the position of the threaded rod 8 is such that when the sliding plate 32 rises, the excessively long threaded rod 8 is squeezed by the pressure plate 6 and slides down. The third elastic element 61 contracts and is subjected to force, leaving corresponding clearance space. This can not only avoid rigid impact causing damage to the workpiece and equipment parts, but also ensure that each first air duct 33 can be smoothly inserted into the blind hole to complete the blowing cleaning operation. When drilling and tapping the motor housing flange, the output end of the second electric cylinder 9 drives the two support blocks 92 connected to the connecting plate 91 to rise, supporting the two support blocks 92 at the bottom of the two fixed plates 14 at the drilling and tapping positions respectively, providing strong support for drilling and tapping. After drilling and tapping are completed, the output end of the second electric cylinder 9 drives the two support blocks 92 to reset, ensuring the smooth movement of the workpiece. By supporting and pressing the bottom of the workpiece at the drilling and tapping position, the amplitude of workpiece shaking during drilling and tapping can be reduced, the generation of machining vibration marks can be reduced, and the machining accuracy of drilling and tapping can be guaranteed. When the output end of the first electric cylinder 31 drives the sliding plate 32 to rise, the waste material blown down from the blind hole can be guided by the top conical surface of the sliding plate 32. As the sliding plate 32 is higher than the collection box 3, the waste material on the conical surface of the sliding plate 32 tilts down and falls onto the collection box 3 for collection, which facilitates the unified cleaning of waste material and ensures the convenience of cleaning waste material and the cleanliness of the processing area. In addition, the five rows of first bend holes 34 are located at the top of the first air duct 33, so that after the gas enters the first air duct 33, it is blown out by the five rows of first bend holes 34 evenly distributed, which can sweep the waste material attached to different depths on the inner wall of the blind hole from multiple directions, ensuring the cleaning effect inside the blind hole.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station rotary table-based integrated drilling and tapping machine for motor housings, characterized in that: The machine includes a machining base; a fixed seat is fixedly connected to the machining base; four indexing slots are provided on the fixed seat; a hexagonal prism is fixedly connected to the center of the fixed seat; four transition rods are fixedly connected to the hexagonal prism, and the four transition rods are respectively located above the four indexing slots; multiple fixed discs are provided on the fixed seat; a transmission assembly is provided on the fixed seat, which is used to connect the multiple fixed discs and drive them to rotate and flip; two support frames are fixedly connected to the machining base; a drill and a tap are fixedly connected to the two support frames respectively, and two of each drill and tap are provided.

2. The integrated drilling and tapping machine for motor housings based on a multi-station rotary table as described in claim 1, characterized in that: The transmission assembly includes a rotating drum, a rotating rod, a short plate, a round rod, a gear ring plate, a first servo motor, and a gear. The rotating drum is rotatably connected to a fixed base. Multiple rotating rods are rotatably connected to the rotating drum, with one end of each rod fixedly connected to one end of a fixed plate. The short plate is fixedly connected to the end of the rotating rod away from the fixed plate. Two round rods are fixedly connected to the end of the fixed plate away from the rotating rod. The gear ring plate is fixedly connected to the outside of the rotating drum. The first servo motor is fixedly connected to a machining base. The gear is fixedly connected to the output end of the first servo motor and can mesh with the gear ring plate to rotate.

3. The integrated drilling and tapping machine for motor housings based on a multi-station rotary table as described in claim 1, characterized in that: Two collection boxes are fixedly connected to the processing machine base; an electric cylinder is fixedly connected to the inside of the processing machine base near the collection boxes; a sliding plate is fixedly connected to the output end of the electric cylinder; multiple air ducts are provided on the sliding plate; a bend hole and a top hole are respectively opened on the side and top of the air duct, and multiple bend holes are provided; an air blowing assembly is provided on the sliding plate, which is used to deliver air to the air duct to blow out and clean the waste chips in the blind hole.

4. The integrated drilling and tapping machine for motor housings based on a multi-station rotary table according to claim 3, characterized in that: The air blowing assembly includes an air pump, a distribution box, an air guide pipe, and a fixed cylinder; the air pump is fixedly connected inside the sliding plate; the distribution box is fixedly connected to the output end of the air pump; multiple air guide pipes are fixedly connected to the distribution box; multiple fixed cylinders are fixedly connected to the sliding plate, and the first air duct is slidably connected inside the fixed cylinder through a first elastic element, and the air pump can be connected to the first air duct through the distribution box, air guide pipe, and fixed cylinder.

5. The integrated drilling and tapping machine for motor housings based on a multi-station rotary table according to claim 4, characterized in that: A second air duct is slidably connected to the first air duct; the second air duct has a second bend and a second top hole respectively on its side and top, and there are multiple second bends; a second elastic element is fixedly connected between the inner wall of the second top hole and the top of the first air duct.

6. The integrated drilling and tapping machine for motor housings based on a multi-station rotary table according to claim 1, characterized in that: The fixed disk has a second servo motor fixedly connected inside; the output end of the second servo motor is fixedly connected to a wheel; multiple anti-slip pads are fixedly connected to the wheel; a center plate is fixedly connected to the center of the wheel; both sides of the center plate are slidably connected to side clamping blocks through fourth elastic elements, and the top surface of the side clamping blocks is set as an inclined surface.

7. A multi-station rotary table-based integrated drilling and tapping machine for motor housings according to claim 6, characterized in that: A threaded rod is threadedly connected to the center plate; a sliding seat is slidably connected to the inner wall of the center plate, and the bottom end of the threaded rod is rotatably connected to the sliding seat; both sides of the sliding seat are slidably connected to a top pressure block through a No. 5 elastic element, and the top surface of the top pressure block is set as an inclined surface.

8. The integrated drilling and tapping machine for motor housings based on a multi-station rotary table according to claim 4, characterized in that: The top of the sliding plate is slidably connected to a pressure plate at the center, and the pressure plate can be located below the threaded rod; a third elastic element is fixedly connected between the bottom of the pressure plate and the inner wall of the sliding plate.

9. A multi-station rotary table-based integrated drilling and tapping machine for motor housings according to claim 1, characterized in that: A second electric cylinder is fixedly connected inside the machining base; a connecting plate is fixedly connected to the output end of the second electric cylinder; support blocks are fixedly connected to both ends of the connecting plate, and the two support blocks are respectively located below the drill and the tap.

10. A multi-station rotary table-based integrated drilling and tapping machine for motor housings according to claim 4, characterized in that: The top surface of the sliding plate is provided with a conical surface; the plurality of No. 1 bend holes are arranged in five rows from top to bottom, and the five rows of No. 1 bend holes are located at the top of the No. 1 air duct.

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