High-speed tapping device for motor stator machining

Abstract

The application discloses a high-rotating-speed trepanning device for motor stator machining and relates to the technical field of drilling devices.The device comprises a machine body, a stand fixedly connected to the top of the machine body, a shell fixedly connected to the top of the stand, a main motor fixedly installed at the top of the shell, a feeding assembly and a drill bit arranged in the shell, an elastic extrusion mechanism, a temperature detection mechanism, wherein the elastic extrusion mechanism comprises a mounting plate and a sliding block which are slidably connected to the inside of the shell, and a compression spring is arranged between the mounting plate and the sliding block; the temperature detection mechanism comprises a temperature controller fixedly installed on the mounting plate and a thermocouple arranged in the drill bit.The device can automatically slow down the feeding speed of the drill bit before the drill bit is overheated, inhibit the continuous temperature rise of the drill bit, prevent the drill bit from being overheated, prolong the service life of the drill bit, and enable the drill bit to continue drilling under the elastic pressure, thereby reducing the downtime and guaranteeing the efficiency of the stator core trepanning machining.

Description

Technical Field

[0001] The invention relates to the technical field of drilling devices, in particular to a high-speed drilling device for machining motor stators. Background Art

[0002] The stator is the stationary part of the motor. Its main function is to generate force to rotate the rotor and provide a magnetic field for the motor operation. The stator is mainly composed of an iron core and a winding. When the stator winding is connected to a three-phase AC power supply, a rotating magnetic field will be generated in the stator winding. The rotating magnetic field cuts the rotor conductor, generating induced electromotive force and induced current in the rotor conductor. The rotor current is subjected to electromagnetic force under the action of the stator magnetic field, thereby causing the rotor to rotate and realizing the conversion of electrical energy into mechanical energy.

[0003] In order to install other accessories of the stator, a hole needs to be drilled on the surface of the iron core using a hole-drilling device during processing. The traditional hole-drilling device is generally composed of a motor, a drill bit and a feed assembly. The motor drives the drill bit to rotate at high speed, and the feed assembly drives the drill bit to drill downward to realize the hole in the iron core. In the actual drilling process, under different working conditions, due to factors such as the hardness of the drill bit and the iron core, the degree of drill bit wear and the external temperature, the feed speed of the drill bit needs to be adaptively adjusted. When the drill bit is fed quickly, it is easy to overheat due to friction, accelerate wear and reduce the service life of the drill bit. When the drill bit is fed at a low speed, the processing efficiency will be reduced and the production cycle will be extended. Therefore, it is urgent to design a hole-drilling device that can ensure processing efficiency under different working conditions while avoiding overheating of the drill bit. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the feed speed of the drill bit needs to be adaptively adjusted under different working conditions, the drill bit is easily overheated due to friction when fed quickly, and the processing efficiency is reduced when the drill bit is fed at a low speed. A high-speed hole-making device for motor stator processing is proposed.

[0005] To achieve the above-mentioned object, the present invention adopts the following technology: a high-speed drilling device for motor stator processing: comprising a body, a stand fixedly connected to the top of the body, a housing fixedly connected to the top of the stand, a main motor fixedly mounted on the top of the housing, a feed assembly and a drill bit arranged inside the housing, and further comprising:

[0006] An elastic extrusion mechanism, the elastic extrusion mechanism comprising a mounting plate and a slider slidably connected to the interior of the housing, with a compression spring provided between the mounting plate and the slider;

[0007] A temperature detection mechanism, comprising a temperature controller fixedly mounted on the mounting plate and a thermocouple disposed inside the drill bit;

[0008] The mounting plate applies downward elastic pressure to the slide block and the drill bit through a compression spring, and the thermocouple enables the temperature controller to control the feed assembly switch by detecting the temperature of the drill bit.

[0009] As a further description of the above technical solution: it also includes a cooling mechanism arranged between the mounting plate and the slider, the cooling mechanism includes a conveying cylinder fixed to the bottom of the mounting plate, the interior of the conveying cylinder is slidably connected to a piston rod, the bottom of the piston rod is fixedly connected to a pull rod, and one side of the pull rod and the conveying cylinder are both installed with a one-way valve, and the machine body is provided with a water tank connected to the one-way valve on the conveying cylinder.

[0010] As a further description of the above technical solution: it also includes a clamping assembly, which includes a threaded sleeve rotatably connected to the bottom of the pull rod, the external rotation connection of the threaded sleeve is connected to a limiting member, a fixing ring is fixedly connected between the threaded sleeve and the limiting member, the bottom of the limiting member is fixedly connected to a guide shell, the internal thread of the threaded sleeve is connected to a threaded rod, and the bottom of the threaded rod is slidably connected to three clamping claws that are slidably connected to the limiting member to clamp the drill bit.

[0011] As a further description of the above technical solution: a transmission unit is arranged between the threaded sleeve and the main motor, and the transmission unit includes a square rod fixed to the driving shaft of the main motor, one side of the slider is rotatably connected to a gear penetrated by the square rod, and the outside of the threaded sleeve is fixedly connected to a gear ring meshing with the gear.

[0012] As a further description of the above technical solution: a connecting unit is provided inside the conveying cylinder, and the connecting unit includes a shell 2 and a shell 1 respectively fixed to the inner wall of the conveying cylinder and the outside of the pull rod, an electromagnet is fixedly installed inside the shell 1, and a magnetic core block is slidably connected to the inside of the shell 1.

[0013] As a further description of the above technical solution: a hose is rotatably connected between the threaded rod and the pull rod, and a sealing ring is provided between the drill bit and the threaded rod.

[0014] As a further description of the above technical solution: a distance sensor is fixedly mounted on the slider, and a display panel is fixedly mounted on one side of the housing.

[0015] As a further description of the above technical solution: the interior of the piston rod is fixedly connected to a wiring tube that passes through the pull rod, hose and threaded rod from top to bottom in sequence, and the thermocouple is arranged inside the wiring tube and the bottom end extends to the inside of the drill bit.

[0016] As a further description of the above technical solution: the shell 1 is connected to the wiring tube, and the circuit of the electromagnet is arranged through the wiring tube.

[0017] As a further description of the above technical solution: the feeding assembly includes a servo motor fixedly mounted on one side of the stand, the internal rotation of the housing is connected to a screw threadedly connected to the mounting plate, the driving shaft of the servo motor and the top end of the screw are fixedly connected to a synchronous wheel, and a synchronous belt is connected between the synchronous wheel of the servo motor and the screw.

[0018] In summary, due to the adoption of the above-mentioned high-speed hole-drilling device for motor stator machining, the beneficial effects of the present invention are:

[0019] The present application can directly control the rapid feed of the drill bit during the stator core drilling process, and automatically shut down the feed assembly through the temperature detection mechanism before the drill bit temperature is about to exceed the safety threshold, stopping the feed of the drill bit. At this time, the compression spring is in a compressed state, and the drill bit can still be subjected to the downward elastic pressure from the compression spring. This design can automatically and significantly slow down the feed speed of the drill bit before the drill bit is about to overheat, and suppress the continued heating of the drill bit, thereby preventing the drill bit from overheating and extending the service life of the drill bit. The drill bit can continue to drill under elastic pressure, reducing downtime, thereby ensuring the efficiency of the stator core drilling process. In addition, the compression spring can play a buffering role at the moment the drill bit contacts the stator core and during the drilling process, reducing the impact load, reducing the risk of drill bit breakage or equipment damage due to sudden impact, and improving safety.

[0020] The cooling mechanism can automatically spray out coolant when the drill bit stops actively feeding and continues to drill downward with the help of the compression spring force, thereby cooling the drill bit and accelerating the cooling of the drill bit. This design not only improves the use efficiency of the drill bit and accelerates the hole-opening efficiency of the stator core, but also the timing of each coolant spraying can match the timing of the drill bit heating up, saving coolant while ensuring the cooling effect of the drill bit. Moreover, when the coolant is transported through the cooling mechanism, the flow of coolant inside the cooling mechanism can also form a damping effect, consume the vibration energy of the drill bit, and cooperate with the compression spring to achieve a shock absorption effect, thereby improving the hole-opening quality when the drill bit rotates at high speed.

[0021] Through the elastic extrusion mechanism, temperature detection mechanism and cooling mechanism, the device avoids the risk of the drill bit overheating and breaking due to excessive feeding during the drilling process, thereby greatly reducing the complexity of operation and significantly lowering the skill requirements for the operator, making it easier to operate.

[0022] The device can switch working modes through the connection unit. The other mode is suitable for stator core drilling processing with a shallow drilling depth that is less likely to cause the drill bit to overheat. In this mode, the drill bit is directly controlled to rise and fall through the feed component, and the position and temperature of the drill bit can be precisely controlled in conjunction with the thermocouple, thereby improving the drilling processing accuracy.

[0023] The wiring tube facilitates the wiring of the thermocouple and the electromagnet, preventing the wiring of the two from contacting and wearing with the surrounding rotating parts. At the same time, the thermocouple can be arranged deep inside the drill bit, making the thermocouple sufficiently close to the cutting and heating part of the thermocouple, thereby improving the temperature detection accuracy and controlling the drilling effect of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shows an overall schematic diagram provided according to an embodiment of the present invention;

[0025] Figure 2 shows a schematic cross-sectional view of a housing provided according to an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of an elastic extrusion mechanism according to an embodiment of the present invention is shown;

[0027] Figure 4 A schematic diagram of a conveying cylinder according to an embodiment of the present invention is shown;

[0028] Figure 5 A schematic cross-sectional view of a conveying cylinder according to an embodiment of the present invention is shown;

[0029] Figure 6 The embodiment of the present invention provides Figure 5 Enlarged view of point A in the middle;

[0030] Figure 7 The embodiment of the present invention provides Figure 5 Enlarged view of point B in the middle;

[0031] Figure 8 The embodiment of the present invention provides Figure 5 Enlarged view of point C in the middle;

[0032] Figure 9 An exploded view of a clamping assembly according to an embodiment of the present invention is shown;

[0033] Figure 10 A schematic diagram of a connection unit provided according to an embodiment of the present invention is shown.

[0034] Legend:

[0035] 10. Machine body; 11. Stand; 12. Housing; 13. Main motor; 14. Feed assembly; 141. Servo motor; 142. Synchronous pulley; 143. Synchronous belt; 144. Screw; 15. Drill bit;

[0036] 20. Elastic extrusion mechanism; 21. Mounting plate; 22. Compression spring; 23. Slider;

[0037] 30. Temperature detection mechanism; 31. Temperature controller; 32. Thermocouple; 33. Distance sensor; 34. Display panel;

[0038] 40. Cooling mechanism; 41. Conveying cylinder; 42. Pull rod; 43. One-way valve; 44. Piston rod; 45. Hose; 46. Sealing ring; 47. Water tank;

[0039] 50. Clamping assembly; 51. Threaded sleeve; 52. Stopper; 53. Guide housing; 54. Threaded rod; 55. Clamping jaw; 56. Fixing ring;

[0040] 60. Transmission unit; 61. Square rod; 62. Gear; 63. Gear ring;

[0041] 70. Connecting unit; 71. Housing 1; 72. Housing 2; 73. Electromagnet; 74. Magnetic core block;

[0042] 80. Wiring tube. DETAILED DESCRIPTION

[0043] The following, in conjunction with the accompanying drawings, provides a clear and complete description of the high-speed hole-drilling device for machining a motor stator according to the embodiments of the present invention. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0044] like Figures 1-10As shown, the high-speed hole-punching device for motor stator processing provided by the present invention comprises a body 10, a stand 11 is fixedly connected to the top of the body 10, a housing 12 is fixedly connected to the top of the stand 11, a main motor 13 is fixedly installed on the top of the housing 12, a feed assembly 14 and a drill bit 15 are provided inside the housing 12, the drill bit 15 adopts an internally cooled twist drill, and a flow channel for coolant to pass through is provided inside, the main motor 13 is used to drive the drill bit 15 to rotate at high speed, the feed assembly 14 is used to control the feed of the drill bit 15, and the drill bit 15 can move downward while rotating at high speed under the coordinated action of the main motor 13 and the feed assembly 14 to achieve drilling. In order to feed the drill bit 15 Space is left above the frame 11 for installing other structural components. The feed assembly 14 includes a servo motor 141 fixedly mounted on one side of the stand 11. The interior of the housing 12 is rotatably connected to a screw rod 144 threadedly connected to the mounting plate 21. The drive shaft of the servo motor 141 and the top of the screw rod 144 are fixedly connected to a synchronous wheel 142. A synchronous belt 143 is connected between the servo motor 141 and the synchronous wheel 142 of the screw rod 144. After starting, the servo motor 141 can drive the synchronous wheel 142 fixed to its drive shaft to rotate, and the remaining synchronous wheels 142 are driven by the synchronous belt 143 to rotate, thereby driving the two screw rods 144 to rotate synchronously. It also includes:

[0045] The elastic squeezing mechanism 20 includes a mounting plate 21 and a slider 23 that are slidably connected to the interior of the housing 12. A compression spring 22 is provided between the mounting plate 21 and the slider 23. The two screw rods 144 rotate synchronously to drive the mounting plate 21 to rise and fall smoothly. During the downward movement of the mounting plate 21, the compression spring 22 pushes the slider 23. Under the elastic force of the compression spring 22, the pressure between the drill bit 15 and the stator core can be slowly increased during drilling, so that the drill bit 15 gradually adapts to the cutting force, reducing the impact on the drill bit 15 in the early stage of drilling, thereby extending the service life of the drill bit 15.

[0046] The temperature detection mechanism 30 includes a temperature controller 31 fixedly mounted on the mounting plate 21 and a thermocouple 32 disposed inside the drill bit 15. The thermocouple 32 can detect the temperature of the drill bit 15 in real time at a close distance. When the temperature of the drill bit 15 is about to exceed the safety threshold, the thermocouple 32 transmits a temperature signal to the temperature controller 31. The temperature controller 31 controls the servo motor 141 to shut down, stopping the continued feeding of the drill bit 15 and suppressing the rapid increase in the temperature of the drill bit 15. A distance sensor 33 is fixedly mounted on the slider 23 for detecting the distance between the mounting plate 21 and the slider 23, thereby facilitating the control of the compression degree of the compression spring 22. A display panel 34 for displaying the temperature of the drill bit 15 and the compression degree of the compression spring 22 is fixedly mounted on one side of the housing 12 to assist the operator in operating the device.

[0047] During the drilling process, the mounting plate 21 applies downward elastic pressure to the slider 23 and the drill bit 15 through the compression spring 22. The thermocouple 32 detects the temperature of the drill bit 15 so that the temperature controller 31 controls the switch of the feed assembly 14. When the drill bit 15 is about to overheat, the servo motor 141 is turned off through the temperature controller 31, and the drill bit 15 stops feeding. At this time, the compressed compression spring 22 still applies downward elastic pressure to the drill bit 15, and the drill bit 15 can still drill slowly downward. At this time, the heat dissipation rate of the drill bit 15 is greater than the heat generation rate, and the temperature of the drill bit 15 will not continue to rise, thereby avoiding overheating of the drill bit 15 and reducing the downtime of the drill bit 15, thereby speeding up the processing efficiency.

[0048] Reference Figure 4 、 Figure 5 and Figure 6 In order to quickly cool the drill bit 15 and further accelerate the processing efficiency, it also includes a cooling mechanism 40 arranged between the mounting plate 21 and the slider 23. The cooling mechanism 40 includes a conveying cylinder 41 fixed to the bottom of the mounting plate 21. The interior of the conveying cylinder 41 is slidably connected to a piston rod 44. The bottom of the piston rod 44 is fixedly connected to a pull rod 42. A one-way valve 43 is installed on one side of the pull rod 42 and the conveying cylinder 41. A water tank 47 is provided on the machine body 10, which is connected to the one-way valve 43 on the conveying cylinder 41 through a pipeline. The interior of the water tank 47 is filled with coolant.

[0049] The mounting plate 21, the compression spring 22, the slider 23, and the drill bit 15 are moved downward by the feed assembly 14. When the downward movement speed of the mounting plate 21 is greater than the drilling speed of the drill bit 15, the compression spring 22 is compressed. At this time, the pull rod 42 and the piston rod 44 move upward relative to the delivery cylinder 41, causing the coolant in the water tank 47 to be sucked into the delivery cylinder 41 through the pipeline and the one-way valve 43 outside the delivery cylinder 41.

[0050] When the thermocouple 32 detects that the drill bit 15 is about to overheat, the temperature controller 31 closes the feed assembly 14. At this time, the mounting plate 21 stops moving downward, and the elastic force of the compression spring 22 can still enable the drill bit 15 to drill downward. The slider 23 moves downward relative to the mounting plate 21, and the compression spring 22 gradually stretches. At this time, the pull rod 42 and the piston rod 44 move downward relative to the conveying cylinder 41, so that the coolant inside the piston rod 44 flows downward through the one-way valve 43 outside the pull rod 42 and the pull rod 42 into the flow channel inside the drill bit 15, thereby achieving rapid cooling of the drill bit 15, so that the temperature of the drill bit 15 can recover and continue to drill quickly.

[0051] Reference Figure 7 and Figure 9In order to facilitate the installation of the thermocouple 32 and the replacement of the drill bit 15, a clamping assembly 50 is also included. The clamping assembly 50 includes a threaded sleeve 51 rotatably connected to the bottom of the pull rod 42, the outer rotation of the threaded sleeve 51 is connected to a limit member 52, the bottom of the limit member 52 is fixedly connected to a guide shell 53, the internal thread of the threaded sleeve 51 is connected to a threaded rod 54, and the bottom of the threaded rod 54 is slidably connected to three clamping claws 55 slidably connected to the limit member 52 for clamping and fixing the drill bit 15.

[0052] When the drill bit 15 is inserted between the three clamping jaws 55 and the limit piece 52 is screwed to make it rotate relative to the threaded sleeve 51, since the clamping jaws 55 are slidably connected to the limit piece 52 and the threaded rod 54, the rotation of the limit piece 52 drives the clamping jaws 55 to rotate and drives the threaded rod 54 to rotate through the clamping jaws 55. At this time, the threaded rod 54 will move downward in the threaded sleeve 51, pushing the clamping jaws 55 to move downward, so that the three clamping jaws 55 slide toward the drill bit 15 under the guidance of the guide shell 53 until the drill bit 15 is clamped and fixed. A fixing ring 56 is fixedly connected between the threaded sleeve 51 and the limit piece 52. After the drill bit 15 is fixed, the threaded sleeve 51 and the limit piece 52 are fixed by tightening the bolts on the fixing ring 56 to prevent the drill bit 15 from being disengaged.

[0053] Reference Figure 2 、 Figure 3 and Figure 4 In order to facilitate the wiring of the thermocouple 32 and leave assembly space for the cooling mechanism 40, a transmission unit 60 is provided between the threaded sleeve 51 and the main motor 13. The transmission unit 60 includes a square rod 61 fixed to the drive shaft of the main motor 13. One side of the slider 23 is rotatably connected to a gear 62 penetrated by the square rod 61. The outside of the threaded sleeve 51 is fixedly connected to a gear ring 63 engaged with the gear 62. The main motor 13 drives the square rod 61 to rotate to rotate the gear 62. The rotation of the gear 62 is driven by the gear ring 63 to drive the threaded sleeve 51 to rotate, thereby driving the drill bit 15 to rotate to achieve drilling. The up and down movement of the slider 23 can drive the gear 62 to move, so that the gear 62 is always engaged with the gear ring 63, so that the drill bit 15 is always driven to rotate by the main motor 13 during the lifting process.

[0054] Reference Figure 10When drilling a hole in a small stator core, the drill bit 15 will not overheat due to the small drilling depth requirement. At this time, indirectly pushing the drill bit 15 down to drill by the compression spring 22 will reduce the drilling efficiency. In order to solve this problem, a connecting unit 70 is provided inside the conveying cylinder 41. The connecting unit 70 includes a shell 2 72 and a shell 1 71 fixed to the inner wall of the conveying cylinder 41 and the outside of the pull rod 42 respectively. An electromagnet 73 is fixedly installed inside the shell 1 71, and a magnetic core block 74 is slidably connected to the inside of the shell 1 71. By making the electromagnet 73 generate a magnetic repulsion force to embed the outer end of the magnetic core block 74 into the interior of the shell 2 72, the conveying cylinder 41 and the pull rod 42 are clamped. At this time, the movement of the mounting plate 21 directly drives the threaded sleeve 51 and the slider 23 to move through the conveying cylinder 41 and the pull rod 42, directly controlling the up and down movement of the drill bit 15, and the compression spring 22 no longer takes effect. In this mode, the processing requirements of the small stator core can be continuously met, and the position of the drill bit 15 can be accurately controlled, thereby improving the processing effect.

[0055] Reference Figure 5 In order to allow the coolant to be transported to the flow channel of the drill bit 15 and avoid leakage in the middle, a hose 45 is rotatably connected between the threaded rod 54 and the pull rod 42, and a rubber sealing ring 46 is provided between the drill bit 15 and the threaded rod 54. After flowing down from the pull rod 42, the coolant passes through the hose 45 and the sealing ring 46 in turn, accurately entering the internal flow channel of the drill bit 15, and giving full play to the cooling effect.

[0056] Reference Figure 5 and Figure 10 In order to improve the accuracy of temperature detection of the drill bit 15, the thermocouple 32 needs to be arranged deeply inside the drill bit 15. However, this situation will increase the difficulty of wiring the thermocouple 32 and easily cause the line to contact and wear with surrounding rotating parts. In order to facilitate wiring, the interior of the piston rod 44 is fixedly connected with a wiring tube 80 that passes through the pull rod 42, the hose 45 and the threaded rod 54 from top to bottom. The thermocouple 32 is arranged inside the wiring tube 80 and the bottom end extends to the inside of the drill bit 15. The shell 71 is connected to the wiring tube 80, and the line of the electromagnet 73 is arranged through the wiring tube 80. Through the wiring tube 80, the wiring of the thermocouple 32 and the electromagnet 73 can be smoothly extended out of the conveying cylinder 41 and the line safety is protected.

[0057] Working principle: After the stator core is placed on the machine body 10, the main motor 13 is started to drive the square rod 61 to rotate. The rotation of the square rod 61 is transmitted through the gear 62, the gear ring 63, the threaded sleeve 51, the fixing ring 56, the limiter 52 and the clamping claw 55 to drive the drill bit 15 to rotate at high speed. Then, the servo motor 141 is started. The servo motor 141 drives the two screw rods 144 to rotate synchronously through the synchronous wheel 142 and the synchronous belt 143, thereby driving the mounting plate 21 to slide downward inside the housing 12. The downward movement of the housing 12 drives the compression spring 22, the cooling mechanism 40, the slider 23, the clamping assembly 50 and the drill bit 15 to move downward until the drill bit 15 contacts the core.

[0058] When the drill bit 15 contacts the iron core for drilling, the feed assembly 14 continues to move the drill bit 15 downward. At this time, the downward movement speed of the drill bit 15 is faster than the drilling speed of the drill bit 15. The drill bit 15 is supported by the iron core, driving the clamping assembly 50 and the slider 23 to move upward relative to the mounting plate 21, thereby compressing the compression spring 22. During this process, the pull rod 42 and the piston rod 44 move upward relative to the delivery cylinder 41, causing the coolant in the water tank 47 to be sucked into the delivery cylinder 41 through the pipeline and the one-way valve 43 outside the delivery cylinder 41.

[0059] The thermocouple 32 detects the temperature of the drill bit 15 in real time. Before the temperature of the drill bit 15 is about to exceed the safety threshold, the thermocouple 32 transmits the temperature signal to the temperature controller 31, and the servo motor 141 is turned off by the temperature controller 31. At this time, the mounting plate 21 stops pushing the compression spring 22 and the slider 23 downward, but the compression spring 22 is in a compressed state. The slider 23, the clamping assembly 50 and the drill bit 15 are subjected to the elastic pressure from the compression spring 22, so that the drill bit 15 can continue to drill downward. At this time, the downward drilling speed of the drill bit 15 is slowed down and the temperature is suppressed. At this time, the pull rod 42 and the piston rod 44 move downward relative to the conveying cylinder 41, so that the coolant inside the piston rod 44 enters the flow channel inside the drill bit 15 through the one-way valve 43 outside the pull rod 42, the pull rod 42, the hose 45 and the threaded rod 54, thereby achieving rapid cooling of the drill bit 15.

[0060] When the temperature of the drill bit 15 returns to the set value, the thermocouple 32 detects the temperature recovery and controls the servo motor 141 to start through the temperature controller 31, so that the drill bit 15 continues to drill downward to continue drilling.

[0061] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes to the high-speed hole-opening device for motor stator processing and its inventive concept according to the technical scope of the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A high-speed hole-punching device for machining a motor stator, comprising a body (10), a stand (11) fixedly connected to the top of the body (10), a housing (12) fixedly connected to the top of the stand (11), a main motor (13) fixedly mounted on the top of the housing (12), a feed assembly (14) and a drill bit (15) provided inside the housing (12), characterized in that: Also includes: An elastic extrusion mechanism (20), the elastic extrusion mechanism (20) comprising a mounting plate (21) and a slider (23) slidably connected to the interior of the housing (12), a compression spring (22) being provided between the mounting plate (21) and the slider (23); A temperature detection mechanism (30), the temperature detection mechanism (30) comprising a temperature controller (31) fixedly mounted on the mounting plate (21) and a thermocouple (32) disposed inside the drill bit (15); It also includes a cooling mechanism (40) disposed between the mounting plate (21) and the slider (23), the cooling mechanism (40) including a conveying cylinder (41) fixed to the bottom of the mounting plate (21), a piston rod (44) slidably connected to the interior of the conveying cylinder (41), a pull rod (42) fixedly connected to the bottom of the piston rod (44), a one-way valve (43) installed on one side of the pull rod (42) and the conveying cylinder (41), and a water tank (47) connected to the one-way valve (43) on the conveying cylinder (41) is provided on the machine body (10); The interior of the piston rod (44) is fixedly connected to a wiring tube (80) that passes through the pull rod (42), the hose (45) and the threaded rod (54) in sequence from top to bottom. The thermocouple (32) is arranged inside the wiring tube (80) and its bottom end extends to the interior of the drill bit (15); The mounting plate (21) applies downward elastic pressure to the slider (23) and the drill bit (15) through the compression spring (22), and the thermocouple (32) detects the temperature of the drill bit (15) to enable the temperature controller (31) to control the feed assembly (14) switch.

2. The high-speed drilling device for machining a motor stator according to claim 1, characterized in that: The invention also includes a clamping assembly (50), wherein the clamping assembly (50) includes a threaded sleeve (51) rotatably connected to the bottom of the pull rod (42), the threaded sleeve (51) is externally rotatably connected to a limit member (52), a fixing ring (56) is fixedly connected between the threaded sleeve (51) and the limit member (52), the bottom of the limit member (52) is fixedly connected to a guide shell (53), the threaded sleeve (51) is internally threadedly connected to a threaded rod (54), and the bottom of the threaded rod (54) is slidably connected to three clamping claws (55) slidably connected to the limit member (52) for clamping and fixing the drill bit (15).

3. The high-speed drilling device for machining a motor stator according to claim 2, characterized in that: A transmission unit (60) is provided between the threaded sleeve (51) and the main motor (13), the transmission unit (60) comprising a square rod (61) fixed to the driving shaft of the main motor (13), one side of the slider (23) being rotatably connected to a gear (62) penetrated by the square rod (61), and the outside of the threaded sleeve (51) being fixedly connected to a gear ring (63) meshing with the gear (62).

4. The high-speed drilling device for machining a motor stator according to claim 1, characterized in that: A connecting unit (70) is provided inside the conveying cylinder (41), and the connecting unit (70) includes a second shell (72) and a first shell (71) respectively fixed to the inner wall of the conveying cylinder (41) and the outside of the pull rod (42), an electromagnet (73) is fixedly installed inside the first shell (71), and a magnetic core block (74) is slidably connected inside the first shell (71).

5. The high-speed drilling device for machining a motor stator according to claim 2, characterized in that: A hose (45) is rotatably connected between the threaded rod (54) and the pull rod (42), and a sealing ring (46) is provided between the drill bit (15) and the threaded rod (54).

6. The high-speed drilling device for machining a motor stator according to claim 1, characterized in that: A distance sensor (33) is fixedly mounted on the slider (23), and a display panel (34) is fixedly mounted on one side of the housing (12).

7. The high-speed drilling device for machining a motor stator according to claim 4, characterized in that: The housing 1 (71) is connected to the wiring tube (80), and the circuit of the electromagnet (73) is arranged through the wiring tube (80).

8. The high-speed drilling device for machining a motor stator according to claim 1, characterized in that: The feeding assembly (14) includes a servo motor (141) fixedly mounted on one side of the stand (11); a screw rod (144) threadedly connected to the mounting plate (21) is rotatably connected inside the housing (12); a driving shaft of the servo motor (141) and a top end of the screw rod (144) are fixedly connected to a synchronous wheel (142); and a synchronous belt (143) is connected between the servo motor (141) and the synchronous wheel (142) of the screw rod (144).

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