A motor shell inner hole boring device

Abstract

The application discloses a motor shell inner hole boring equipment, and relates to the shell boring technical field.The motor shell inner hole boring equipment comprises a base, a rotating disc, a placing frame fixed on the upper surface of the base, a boring mechanism arranged on the outer surface of the rotating disc, and a material blowing mechanism for blowing out the boring waste and arranged on the outer surface of the rotating disc.The upper surface of the base is fixed with a rack, the top end of the rack is fixed with a first cylinder, the inner ring of the first cylinder is rotationally connected with a rotating frame through a first bearing, the end of the rotating frame is fixed on the outer surface of the rotating disc, the upper surface of the base is fixed with a first stepping motor, and the output end of the first stepping motor is connected with the end of the rotating frame through a shaft coupling.The motor shell inner hole boring equipment can adapt to the boring work of different inner diameter shells.

Description

Technical Field

[0001] This invention relates to the field of housing boring technology, specifically to a boring device for the inner hole of an electric motor housing. Background Technology

[0002] The motor housing is a core structural component of the motor, and its internal hole dimensional accuracy and surface quality directly affect the fit accuracy between the motor stator and the housing, heat dissipation efficiency, and overall operational reliability. Internal hole boring is a crucial process in motor housing machining, used to finish the internal hole, removing excess material left from previous machining processes (such as casting and rough turning) to obtain the hole diameter tolerances, cylindricity, and surface roughness that meet design requirements. Currently, internal hole boring of motor housings is mainly performed using dedicated boring machines / machining centers.

[0003] A Chinese invention patent publication (CN105817669A) discloses a boring tool for the inner oil groove of a wind turbine bearing housing. The tool includes a geared motor, a support, a right half-spindle, a left half-spindle, a tool holder, a tool clamp, a square slide block, end-threaded gear blocks, an internal gear ring with end-threaded teeth at both ends, and a gear shaft. The right half-spindle is supported in the support by bearings at both ends. The left half-spindle is fixedly connected to the right half-spindle. Both the right and left half-spindles have square slide blocks. An internal gear ring with end-threaded teeth at both ends is fitted onto the left half-spindle between the two square slide blocks. End-threaded gear blocks are fixed at opposite ends of the two square slide blocks and mesh with the end-threaded teeth of the internal gear ring. A gear shaft is installed inside the left half-spindle and meshes with the internal teeth of the internal gear ring. A tool clamp is located at opposite ends of the two square slide blocks, and the tool holder is held in the tool clamp. The gear shaft is connected to a handwheel, and the right half-spindle is connected to the geared motor. This invention has the advantages of high boring efficiency, reduced labor intensity for operators, low technical requirements for operators, and low energy consumption, thus reducing costs.

[0004] However, this invention lacks automated radial adjustment functionality. When machining motor housings with different inner diameters, the tool position needs to be readjusted, making changeover operations cumbersome and time-consuming, and difficult to adapt to the needs of flexible production with multiple product varieties. Secondly, the chips generated during boring easily accumulate at the bottom of the inner hole and in the cutting area. If they cannot be discharged in time, they will be repeatedly crushed by the rotating boring bar, resulting in scratches or indentations on the machined surface and reducing surface quality. At the same time, the accumulated chips will accelerate tool wear and shorten tool life. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a boring machine for the inner hole of an electric motor housing, comprising a base and a rotating disk, and a placement frame fixed to the upper surface of the base, and further comprising:

[0006] A boring mechanism, wherein the boring mechanism is disposed on the outer surface of the rotating disk; A blowing mechanism for blowing out boring waste material, the blowing mechanism being disposed on the outer surface of the rotating disk; A frame is fixed on the upper surface of the base, and a first cylinder is fixed on the top of the frame. The inner ring of the first cylinder is rotatably connected to a rotating frame through a first bearing. The end of the rotating frame is fixed on the outer surface of the rotating disk. A first stepper motor is fixed on the upper surface of the base, and the output end of the first stepper motor is connected to the end of the rotating frame through a coupling. The outer surface of the rotating disk has two centrally symmetrical track grooves. The boring mechanism includes a first sliding frame, which is slidably connected to a track groove on the outer surface of the rotating disk. An installation tube is slidably connected to the inner cavity of the first sliding frame, and a boring head is movably connected to the inner cavity of the installation tube.

[0007] Preferably, a second cylinder is fixed to the inner wall of the first sliding frame, and a nut is rotatably connected to the inner wall of the second cylinder via a second bearing. A lead screw is threaded into the inner cavity of the nut, and the end of the lead screw is fixed to the end of the mounting tube away from the boring head.

[0008] Preferably, a second stepper motor is fixedly mounted on the upper surface of the second cylinder, and a first roller is mounted on the output end of the second stepper motor via a coupling. A second roller is fixedly mounted on the outer surface of the nut via a connecting frame, and the first roller is connected to the second roller via a belt.

[0009] Preferably, the outer surface of the rotating disk has limit grooves on both sides of the track groove, the outer surface of the first sliding frame is provided with a sliding block, the sliding block is slidably connected to the limit groove, the upper and lower surfaces of the mounting tube are symmetrically provided with sliding strips, the upper and lower surfaces of the first sliding frame sleeved on the outer surface of the mounting tube are symmetrically provided with sliding grooves, and the sliding strips are slidably connected to the sliding grooves.

[0010] Preferably, a spring is fixed to the inner wall of the mounting tube, a positioning plate is fixed to the end of the spring, and a positioning hole is opened on the upper and lower surfaces of the boring head at one end of the inner cavity of the mounting tube, and the positioning plate is positioned and adapted to the positioning hole.

[0011] Preferably, the blowing mechanism includes an impeller, which is fixed on the outer surface of the rotating disk. The impeller is composed of several inclined blades arranged in a ring on the outer surface of the rotating disk. The outer surface of the impeller is fitted with a wrapping ring, the upper surface of which has an air inlet hole, and the lower surface of which has a filter tube. The end of the filter tube is fixed with a connecting ring.

[0012] Preferably, a rotating ring is rotatably connected to the opening of the connecting ring, and a bent pipe passes through the outer surface of the rotating ring. The blowing mechanism also includes a second sliding frame, which is slidably connected to a track groove opened on the outer surface of the rotating disk. A connecting pipe is provided in the inner cavity of the second sliding frame, and the bent end of the connecting pipe is slidably connected to the inner wall of the bent pipe.

[0013] Preferably, an air blowing pipe is slidably connected to the outer surface of the connecting pipe away from the bend, and the air blowing pipe is distributed parallel to the boring head. A hexagonal rod is fixed on the side of the rotating ring away from the rotating frame, and an inner hexagonal tube is slidably connected to the outer surface of the hexagonal rod. A limiting ring is fixed on the end of the inner hexagonal tube away from the hexagonal rod.

[0014] Preferably, a first fixing bracket is fixedly provided on the lower surface of the mounting tube, and an internally threaded tube is rotatably connected to the lower surface of the first fixing bracket via a bearing, wherein the internally threaded tube is frictionally adapted to the inner cavity of the limiting ring.

[0015] Preferably, a second fixing frame is fixed on the outer surface of the air blowing pipe, and a threaded rod is rotatably connected to the upper surface of the second fixing frame via a bearing. The threaded rod meshes with an internal threaded pipe. A hydraulic telescopic rod is fixed in the inner cavity of the rotating disk, and the end of the telescopic end of the hydraulic telescopic rod is fixed on the upper surface of the second sliding frame.

[0016] This invention provides a boring device for the inner hole of an electric motor housing. It has the following beneficial effects: I. The motor housing inner hole boring equipment, by setting a boring mechanism, can rotate with the rotating disk and contact the inner wall of the motor housing, thereby completing the cutting of the inner hole of the motor housing. At the same time, the cutting position can be adjusted radially to adapt to the processing needs of different positions of different motor housings.

[0017] II. The boring equipment for the inner hole of the motor housing is equipped with a blowing mechanism. During the boring process, the rotational force of the boring machine generates airflow, which blows the waste material generated by cutting out of the inner hole, preventing the waste material from accumulating and affecting the machining accuracy and surface quality. At the same time, the distance between the air blowing port and the boring mechanism and the inner wall of the motor housing can be adjusted.

[0018] III. This motor housing inner bore boring machine, by incorporating components such as an impeller, a wrapping ring, a filter pipe, a connecting ring, and a bend, constructs a self-generating material blowing system that requires no external air source. The impeller consists of multiple annularly distributed inclined blades. As the rotating disk rotates at high speed, centrifugal force draws in external air through the air inlet and compresses it into a high-pressure airflow. This airflow is then guided through the connecting ring, bend, and connecting pipe to the blowing pipe, ultimately being precisely sprayed onto the cutting area of ​​the boring head. This design cleverly utilizes the inherent rotational motion of the rotating disk during boring, eliminating the need for an additional air pump or compressed air pipeline, simplifying the equipment structure and reducing energy consumption. Simultaneously, the blowing pipe always moves radially synchronously with the boring head, ensuring that the airflow is always aligned with the cutting point and promptly blowing away waste material from the inner bore, effectively preventing the adverse effects of waste material accumulation on machining accuracy and surface quality.

[0019] IV. This motor housing internal bore boring equipment achieves high-precision digital control of the boring head's axial feed by incorporating a second cylinder, a second bearing, a nut, a lead screw, and a second stepper motor and its transmission components. The second stepper motor drives the first roller to rotate, which in turn drives the second roller and the nut via a belt. The nut, through its internal thread, engages with the lead screw, precisely converting the rotational motion into the linear displacement of the lead screw, thus propelling the mounting tube and the boring head for stable axial feed. Due to the excellent angular displacement control precision of the stepper motor, combined with the mechanical gain effect of the threaded transmission, micron-level fine adjustment of the boring depth can be achieved, ensuring the consistency of the cutting depth throughout the entire length of the internal bore. This significantly improves the dimensional accuracy and surface quality of the internal bore machining, making it particularly suitable for high-precision motor housing machining scenarios with stringent requirements for bore diameter tolerances and cylindricity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of a boring machine for an inner hole of a motor housing according to the present invention; Figure 2 This is a side view of the structure of a boring machine for the inner hole of a motor housing according to the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of the rotating disk structure of the present invention; Figure 5 This is a schematic diagram of the boring mechanism of the present invention; Figure 6 This is a partial structural diagram of the boring mechanism of the present invention; Figure 7 This is a schematic diagram of the boring depth adjustment mechanism of the boring mechanism of the present invention; Figure 8 This is a schematic diagram of the disassembled structure of the boring head of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the mounting pipe of the present invention; Figure 10 This is a schematic diagram of the impeller structure of the present invention; Figure 11 This is a schematic diagram of the cross-sectional structure of the impeller of the present invention.

[0021] In the diagram: 1. Base; 2. Placement frame; 3. Frame; 4. First stepper motor; 5. First cylinder; 6. First bearing; 7. Rotating frame; 8. Boring mechanism; 81. First sliding frame; 82. Second cylinder; 83. Second stepper motor; 84. First roller; 85. Belt; 86. Second roller; 87. Second bearing; 88. Nut; 89. Lead screw; 810. Mounting tube; 811. Boring cutter head; 812. First fixing frame; 813. Inner... 814. Threaded pipe; 815. Spring; 9. Positioning plate; 9. Blowing mechanism; 91. Impeller; 92. Wrapping ring; 93. Filter pipe; 94. Connecting ring; 95. Rotating ring; 96. Bend; 97. Connecting pipe; 98. Second sliding frame; 99. Air blowing pipe; 910. Second fixed frame; 911. Threaded rod; 912. Hexagonal rod; 913. Internal hexagonal tube; 914. Limiting ring; 915. Hydraulic telescopic rod; 10. Rotating disk; 11. Track groove. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0023] like Figures 1-4 As shown, the present invention provides a technical solution: a boring machine for the inner hole of a motor housing, comprising a base 1 and a rotating disk 10, and a placement frame 2 fixed on the upper surface of the base 1. The placement frame 2 is used to place the motor housing workpiece to be processed, thereby positioning and supporting the workpiece. A frame 3 is fixedly mounted on the upper surface of the base 1. A first cylinder 5 is fixedly mounted on the top of the frame 3. The inner ring of the first cylinder 5 is rotatably connected to a rotating frame 7 via a first bearing 6. The end of the rotating frame 7 is fixedly mounted on the outer surface of the rotating disk 10. A first stepper motor 4 is fixedly mounted on the upper surface of the base 1. The output end of the first stepper motor 4 is connected to the end of the rotating frame 7 via a coupling. By setting the first cylinder 5, its inner ring supports the rotation of the rotating frame 7 via the first bearing 6, enabling the rotating frame 7 to drive the rotating disk 10 to rotate stably, thereby preventing shaking during boring and affecting accuracy. By setting the first bearing 6, the frictional resistance of the rotating frame 7 can be reduced. By setting the rotating frame 7, the first stepper motor 4 and the rotating disk 10 are connected, and the rotational power of the output end of the first stepper motor 4 is transmitted to the rotating disk 10, thereby realizing the circumferential feed of the boring head 811. Two centrally symmetrical track grooves 11 are provided on the outer surface of the rotating disk 10. By setting the track grooves 11, radial sliding guides are provided for the boring mechanism 8 and the blowing mechanism 9, so that the boring mechanism 8 and the blowing mechanism 9 can move synchronously in the radial direction, thereby adapting to the boring work of motor housings with different inner diameters.

[0024] like Figures 5-9 As shown, the boring equipment for the inner hole of the motor housing also includes a boring mechanism 8, which is disposed on the outer surface of the rotating disk 10. By setting the boring mechanism 8, it can rotate with the rotating disk 10 and contact the inner wall of the motor housing, thereby completing the cutting of the inner hole of the motor housing. At the same time, the cutting position can be adjusted radially to adapt to the processing requirements of different positions of different motor housings. The boring mechanism 8 includes a first sliding frame 81, which is slidably connected to a track groove 11 on the outer surface of the rotating disk 10. A mounting tube 810 is slidably connected to the inner cavity of the first sliding frame 81, and a boring head 811 is movably connected to the inner cavity of the mounting tube 810. By setting the first sliding frame 81, it can slide radially within the track groove 11, achieving the effect of adjusting the cutting radius of the boring head 811. The mounting tube 810 is used to mount the boring head 811, which moves axially under the drive of the lead screw 89, controlling the boring depth. By setting the boring head 811, the inner hole of the motor housing is directly cut, with the cutting edge contacting the workpiece surface to remove material. Simultaneously, the quick disassembly method allows for precise positioning and rapid replacement of different cutting heads.

[0025] A second cylinder 82 is fixed to the inner wall of the first sliding frame 81. A nut 88 is rotatably connected to the inner wall of the second cylinder 82 via a second bearing 87. A lead screw 89 is threadedly connected to the inner cavity of the nut 88, and the end of the lead screw 89 is fixed to the end of the mounting tube 810 away from the boring head 811. The second cylinder 82 provides mounting support for the nut 88 and also serves as a guide channel for the lead screw 89. The second bearing 87 supports the nut 88 to rotate smoothly within the second cylinder 82, reducing frictional resistance during rotation. The nut 88 rotates within the second cylinder 82, and its internal thread engages with the lead screw 89, converting rotational motion into linear motion of the lead screw 89. The lead screw 89, threaded into the inner cavity of the nut 88 and fixed at one end to the end of the mounting tube 810, moves axially when the nut 88 rotates, pushing the mounting tube 810 and the boring head 811 forward or backward, thus achieving precise control of the boring depth.

[0026] A second stepper motor 83 is fixedly mounted on the upper surface of the second cylinder 82. A first roller 84 is mounted on the output end of the second stepper motor 83 via a coupling. A second roller 86 is fixed on the outer surface of the nut 88 via a connecting bracket. The first roller 84 is connected to the second roller 86 via a belt 85. By setting the second stepper motor 83, the lead screw 89 can be rotated during operation, thereby precisely controlling the axial feed of the boring head 811. The first roller 84, mounted on the output end of the second stepper motor 83, rotates with the second stepper motor 83. The second roller 86 and belt 85 connect the first roller 84 and the second roller 86, thereby transmitting the rotational power of the second stepper motor 83 to the nut 88, ultimately transmitting the rotational force from the output end of the second stepper motor 83 to the nut 88.

[0027] Limiting grooves are formed on both sides of the track groove 11 on the outer surface of the rotating disk 10. A sliding block is provided on the outer surface of the first sliding frame 81, and this sliding block is slidably connected to the limiting groove. Sliding strips are symmetrically arranged on the upper and lower surfaces of the mounting tube 810. Sliding grooves are symmetrically formed on the upper and lower surfaces of the outer surface of the first sliding frame 81, and the sliding strips are slidably connected to the sliding grooves. By setting the limiting grooves, auxiliary guidance and limitation are provided for the radial movement of the first sliding frame 81, preventing the first sliding frame 81 from deflecting during rotation. By setting the sliding strips, which cooperate with the sliding grooves in the inner cavity of the first sliding frame 81, precise guidance is provided for the axial movement of the mounting tube 810, ensuring that the boring head 811 can only advance in a straight line, preventing deflection during cutting.

[0028] A spring 814 is fixed to the inner wall of the mounting tube 810, and a positioning plate 815 is fixed to the end of the spring 814. Positioning holes are formed on the upper and lower surfaces of the boring head 811 at one end of the inner cavity of the mounting tube 810, and the positioning plate 815 is positioned and fitted into these holes. The spring 814 provides elastic thrust to the positioning plate 815, keeping it engaged with the positioning hole of the boring head 811 under normal conditions. The positioning plate 815, pushed by the spring 814, engages with the positioning hole of the boring head 811, fixing the boring head 811 inside the mounting tube 810 and preventing it from loosening during boring. When the boring head needs to be replaced, the positioning plate 815 is pulled out of the positioning hole by overcoming the elastic force of the spring 814, allowing for quick replacement of the boring head.

[0029] like Figures 10-11 As shown, the boring equipment for the inner hole of the motor housing also includes a blowing mechanism 9, which is used to blow out the waste material generated during boring. The blowing mechanism 9 is disposed on the outer surface of the rotating disk 10. By setting the blowing mechanism 9, during the boring process, the rotational force of boring is used to generate airflow, thereby blowing out the waste material generated by cutting from the inner hole, preventing the accumulation of waste material from affecting the machining accuracy and surface quality. At the same time, the distance between the air blowing port and the boring mechanism 8 and the inner wall of the motor housing can be adjusted. The blowing mechanism 9 includes an impeller 91, which is fixed to the outer surface of the rotating disk 10. The impeller 91 is composed of several inclined blades arranged in a ring on the outer surface of the rotating disk 10. A wrapping ring 92 is fitted onto the outer surface of the impeller 91. An air inlet is formed on the upper surface of the wrapping ring 92, and a filter pipe 93 passes through the lower surface of the wrapping ring 92. A connecting ring 94 is fixed to the end of the filter pipe 93. By setting the impeller 91, centrifugal force is generated when the rotating disk 10 rotates, drawing in external air through the air inlet on the upper surface of the wrapping ring 92 to form a high-pressure airflow. By setting the filter pipe 93 to connect the wrapping ring 92 and the connecting ring 94, the high-pressure airflow generated by the impeller 91 is guided to the connecting ring 94, while simultaneously filtering impurities in the airflow.

[0030] A rotating ring 95 is rotatably connected to the opening of the connecting ring 94. A bent pipe 96 penetrates the outer surface of the rotating ring 95. The blowing mechanism 9 also includes a second sliding frame 98, which is slidably connected to a track groove 11 on the outer surface of the rotating disk 10. A connecting pipe 97 is provided in the inner cavity of the second sliding frame 98, and the bent end of the connecting pipe 97 is slidably connected to the inner wall of the bent pipe 96. By setting the rotating ring 95, the bent pipe 96 can rotate relative to the connecting ring 94, thus maintaining the internal airflow when the rotating disk 10 drives the blowing mechanism 9 to rotate. By setting the bent pipe 96, the connecting pipe 97 can still slide within the bent pipe 96 when the second sliding frame 98 moves radially, maintaining airflow. By setting the second sliding frame 98, it can slide radially within the track groove 11, driving the connecting pipe 97 and the air blowing pipe 99 to move synchronously, so that the air blowing pipe 99 always remains parallel to the boring head 811 and follows its radial position. By setting up a connecting pipe 97, the bent end of which is slidably connected to the inner wall of the bend pipe 96, the high-pressure airflow is guided from the bend pipe 96 to the blowing pipe 99.

[0031] An air blowing pipe 99 is slidably connected to the outer surface of the connecting pipe 97 away from the bend 96. This air blowing pipe 99 is distributed parallel to the boring head 811. A hexagonal rod 912 is fixedly mounted on the side of the rotating ring 95 away from the rotating frame 7. An inner hexagonal tube 913 is slidably connected to the outer surface of the hexagonal rod 912. A limiting ring 914 is fixedly mounted at the end of the inner hexagonal tube 913 away from the hexagonal rod 912. By setting the air blowing pipe 99, high-pressure airflow can be guided to the cutting position of the boring head 811, and the waste generated from cutting can be blown out from the inner hole. By setting the hexagonal rod 912, its hexagonal cross-section matches the inner hexagonal tube 913, transmitting rotational torque while allowing the inner hexagonal tube 913 to slide axially.

[0032] The lower surface of the mounting tube 810 is fixed with a first fixing bracket 812. The lower surface of the first fixing bracket 812 is rotatably connected to an internally threaded tube 813 via a bearing. The internally threaded tube 813 is frictionally adapted to the inner cavity of the limiting ring 914.

[0033] A second fixing bracket 910 is fixedly mounted on the outer surface of the air blowing pipe 99. A threaded rod 911 is rotatably connected to the upper surface of the second fixing bracket 910 via a bearing. The threaded rod 911 meshes with the internally threaded pipe 813. A hydraulic telescopic rod 915 is fixedly mounted in the inner cavity of the rotating disk 10. The telescopic end of the hydraulic telescopic rod 915 is fixed to the upper surface of the second sliding frame 98. The first fixing bracket 812 provides mounting support for the internally threaded pipe 813. The internally threaded pipe 813 is rotatably connected to the lower surface of the first fixing bracket 812, and its internal thread engages with the threaded rod 911. When the air blowing pipe 99 moves axially, the threaded rod 911 moves and rotates with the air blowing pipe 99, driving the internally threaded pipe 813 to move axially, causing the air blowing pipe 99 to adjust its position synchronously, so that the air blowing pipe 99 and the boring head 811 move together relative to each other. By setting a hydraulic telescopic rod 915, which is fixed in the inner cavity of the rotating disk 10, and its telescopic end is fixedly connected to the second sliding frame 98, the second sliding frame 98 is driven to slide radially along the track groove 11, thereby driving the blowing mechanism 9 and the boring mechanism 8 to move radially synchronously, and keeping the relative position of the air blowing pipe 99 and the boring head 811 constant.

[0034] Working principle: Before processing, the motor housing workpiece is placed on the placement frame 2 for positioning. According to the diameter of the inner hole to be processed, the hydraulic telescopic rod 915 pushes the second sliding frame 98 to slide radially along the track groove 11. During the movement of the second sliding frame 98, the threaded rod 911 and the internal threaded tube 813 move relative to each other, thereby causing the first sliding frame 81 to move synchronously. Finally, the cutting edge of the boring head 811 contacts the inner hole wall, and the cutting radius is set. The air blowing pipe 99 keeps parallel to the boring head 811 and the relative position is constant.

[0035] Starting the boring process: The first stepper motor 4 drives the rotating disk 10 to rotate continuously via the rotating frame 7 and the first bearing 6. The boring head 811 rotates with the rotating disk 10 to perform circumferential cutting on the inner hole wall. The second stepper motor 83 drives the nut 88 to rotate under the support of the second bearing 87 via the first roller 84, the belt 85 and the second roller 86. The lead screw 89 advances axially, pushing the mounting tube 810 and the boring head 811 to feed axially, realizing the full-length boring of the inner hole.

[0036] During the boring process, the rotating disk 10 drives the impeller 91 to rotate at high speed. The inclined blades of the impeller 91 generate centrifugal force, drawing in external air through the air inlet of the wrapping ring 92, forming a high-pressure airflow. This airflow passes through the filter pipe 93 into the connecting ring 94, then through the rotating ring 95, the bent pipe 96, and the connecting pipe 97, before being ejected from the blowing pipe 99, blowing out the waste material generated during boring from the inner hole. The rotating ring 95 keeps the air passage open in the bent pipe 96 as the rotating disk 10 rotates, and the bent end of the connecting pipe 97 slides within the bent pipe 96 to adapt to positional changes during radial movement.

[0037] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A boring machine for the inner hole of an electric motor housing, comprising a base (1) and a rotating disk (10), and a placement frame (2) fixed to the upper surface of the base (1), characterized in that, Also includes: A boring mechanism (8) is disposed on the outer surface of a rotating disk (10); A blowing mechanism (9) is used to blow out the waste material from boring, and the blowing mechanism (9) is disposed on the outer surface of the rotating disk (10); A frame (3) is fixed on the upper surface of the base (1), and a first cylinder (5) is fixed on the top of the frame (3). The inner ring of the first cylinder (5) is rotatably connected to a rotating frame (7) through a first bearing (6). The end of the rotating frame (7) is fixed on the outer surface of the rotating disk (10). A first stepper motor (4) is fixed on the upper surface of the base (1). The output end of the first stepper motor (4) is connected to the end of the rotating frame (7) through a coupling. The outer surface of the rotating disk (10) has two centrally symmetrical track grooves (11). The boring mechanism (8) includes a first sliding frame (81), which is slidably connected to the track groove (11) opened on the outer surface of the rotating disk (10). An installation tube (810) is slidably connected to the inner cavity of the first sliding frame (81), and a boring head (811) is movably connected to the inner cavity of the installation tube (810).

2. The machine for boring the inner hole of a motor housing according to claim 1, characterized in that: A second cylinder (82) is fixedly installed on the inner wall of the first sliding frame (81). A nut (88) is rotatably connected to the inner wall of the second cylinder (82) via a second bearing (87). A lead screw (89) is threadedly connected to the inner cavity of the nut (88). The end of the lead screw (89) is fixed at the end of the mounting tube (810) away from the boring head (811).

3. The machine for boring the inner hole of a motor housing according to claim 2, characterized in that: A second stepper motor (83) is fixed on the upper surface of the second cylinder (82). A first roller (84) is installed at the output end of the second stepper motor (83) through a coupling. A second roller (86) is fixed on the outer surface of the nut (88) through a connecting frame. The first roller (84) is connected to the second roller (86) through a belt (85).

4. The machine for boring the inner hole of a motor housing according to claim 1, characterized in that: The outer surface of the rotating disk (10) is provided with limiting grooves on both sides of the track groove (11). The outer surface of the first sliding frame (81) is provided with a sliding block, which is slidably connected to the limiting groove. The upper and lower surfaces of the mounting tube (810) are symmetrically provided with sliding strips. The first sliding frame (81) is sleeved on the upper and lower surfaces of the outer surface of the mounting tube (810) and symmetrically provided with sliding grooves. The sliding strip is slidably connected to the sliding groove.

5. The machine for boring the inner hole of a motor housing according to claim 1, characterized in that: A spring (814) is fixedly installed on the inner wall of the mounting tube (810), and a positioning plate (815) is fixedly installed at the end of the spring (814). The boring head (811) has positioning holes on the upper and lower surfaces at one end of the inner cavity of the mounting tube (810), and the positioning plate (815) is positioned and adapted to the positioning holes.

6. The device for boring the inner hole of a motor housing according to claim 1, characterized in that: The blowing mechanism (9) includes an impeller (91), which is fixed on the outer surface of the rotating disk (10). The impeller (91) is composed of several inclined blades arranged in a ring on the outer surface of the rotating disk (10). The outer surface of the impeller (91) is fitted with a wrapping ring (92). An air inlet is opened on the upper surface of the wrapping ring (92). A filter tube (93) passes through the lower surface of the wrapping ring (92). A connecting ring (94) is fixed at the end of the filter tube (93).

7. The machine for boring the inner hole of a motor housing according to claim 6, characterized in that: The opening of the connecting ring (94) is rotatably connected to a rotating ring (95), and a bent pipe (96) penetrates the outer surface of the rotating ring (95). The blowing mechanism (9) also includes a second sliding frame (98), which is slidably connected to the track groove (11) opened on the outer surface of the rotating disk (10). A connecting pipe (97) is provided in the inner cavity of the second sliding frame (98), and the bent end of the connecting pipe (97) is slidably connected to the inner wall of the bent pipe (96).

8. The machine for boring the inner hole of a motor housing according to claim 7, characterized in that: The outer surface of the connecting pipe (97) away from the bend (96) is slidably connected to an air blowing pipe (99), which is distributed parallel to the boring head (811). The rotating ring (95) is fixedly provided with a hexagonal rod (912) on the side away from the rotating frame (7). The outer surface of the hexagonal rod (912) is slidably connected to an inner hexagonal tube (913), and a limiting ring (914) is fixedly provided at the end of the inner hexagonal tube (913) away from the hexagonal rod (912).

9. The machine for boring the inner hole of a motor housing according to claim 8, characterized in that: The lower surface of the mounting tube (810) is fixed with a first fixing bracket (812), and the lower surface of the first fixing bracket (812) is rotatably connected to an internal threaded tube (813) via a bearing. The internal threaded tube (813) is frictionally adapted to the inner cavity of the limiting ring (914).

10. A boring machine for the inner hole of a motor housing according to claim 9, characterized in that: The outer surface of the air blowing pipe (99) is fixed with a second fixing frame (910). The upper surface of the second fixing frame (910) is rotatably connected with a threaded rod (911) through a bearing. The threaded rod (911) meshes with the internal threaded pipe (813). The inner cavity of the rotating disk (10) is fixed with a hydraulic telescopic rod (915). The end of the telescopic end of the hydraulic telescopic rod (915) is fixed on the upper surface of the second sliding frame (98).

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