Tool for drilling micro-current motor end cover

Abstract

The invention discloses a tool for drilling a micro-current motor end cover, and relates to the technical field of motor end cover machining. A lifting platform is arranged above the bearing base, and the lifting platform is used for mounting a cutter type cutting machine for drilling holes in the end cover; a driving cavity is formed in the bearing base, a protection mechanism is arranged in the driving cavity, and the protection mechanism comprises a shielding sliding seat; a positioning mechanism is arranged in the middle of the top face of the bearing base. According to the tool for drilling the end covers of the micro-current motor, the end covers of different specifications are positioned in a self-locking mode through the positioning mechanism above the bearing base, and a cutter type cutting machine following the lifting platform can trim and machine drilled holes; and a shielding sliding seat and an overturning type arc plate of the protection mechanism can block splashing metal chips in the drilling process, and the metal chips are collected and discharged outwards through the conveying mechanism, so that the efficiency of drilling and cutting operation is improved.

Description

Technical Field

[0001] The invention relates to the technical field of motor end cover processing, in particular to a tool for drilling holes in a micro-current motor end cover. Background Art

[0002] The structure of a micro-current motor is similar to that of a conventional motor, but the driving current is smaller than that of a general motor. It is also mainly composed of a stator, a rotor, and bearings. Micro-current motors are usually used in precision machinery. They are small in size and simple in internal structure, so the manufacturing cost is low and they are suitable for various scenarios. The end cover is used to seal the motor and its internal parts, so it is necessary to drill holes in the end cover. However, a single drilling process cannot guarantee the stability of the connection. There are usually metal chips that have not completely fallen off inside the drilled hole, so it is also necessary to use a cutting tool that penetrates deep into the hole to process the roundness and smoothness.

[0003] The invention with publication number CN117754019B discloses a micro motor end cover punching device. When punching, the drill bit passes through the motor end cover, and at the same time, the second cylinder squeezes the fourth spring to slide into the circular hole, so that the second cylinder is always close to the upper end of the motor end cover. By setting the second cylinder, debris splashing during drilling is prevented. Several nozzles are provided at the lower end of the second cylinder to spray water to cool the drill bit when the electric drill is working, thereby increasing the service life of the drill bit.

[0004] The invention with publication number CN112191882A discloses a drilling device for processing a water pump body and an end cover. Through linkage, when the drilling device completes drilling a hole on a pump body and a pump cover and moves upward to remove the hole, the workpiece fixed on the disc is also rotated by a certain angle. After the rotation, the next position to be drilled on the workpiece is directly below the drill bit, and then processing of a hole is carried out. The whole linkage effect is excellent and the structure is novel, which reduces the interval time for adjusting the position of the workpiece after the drilling is completed.

[0005] However, the above-mentioned drilling equipment for motor end cover processing still has the following problems during actual use: although it is capable of positioning and drilling holes for end covers of different specifications, this type of drilling equipment cannot guarantee the roundness and flatness of the holes, and requires subsequent manual cutting and smoothing. At the same time, the positioning mechanism requires manual auxiliary operation. At the same time, metal chips fly to the outside during the drilling process, which then scatters and affects safety. At the same time, the metal chips of the end cover cannot be effectively collected and remain inside the equipment, affecting the operation of the drilling equipment.

[0006] Therefore, we propose a tool for drilling holes in the end cover of a micro-current motor in order to solve the problems raised above. Summary of the invention

[0007] The purpose of the present invention is to provide a tool for drilling holes in the end cover of a micro-current motor, in order to solve the problem that although the existing drilling equipment can perform positioning drilling for end covers of different specifications, such drilling equipment cannot guarantee the roundness and flatness of the holes, and requires subsequent manual cutting and flattening. At the same time, the positioning mechanism requires manual auxiliary operation. At the same time, metal chips splash to the outside during the drilling process, and then scatter and affect safety. At the same time, the metal chips of the end cover cannot be effectively collected and remain inside the equipment, affecting the operation of the drilling equipment.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tool for drilling holes in end caps of micro-current motors, comprising a bearing base, and supporting side plates fixedly mounted on the left and right sides of the top surface of the bearing base, and a protective top plate is fixedly arranged on the top of the supporting side plates; A lifting platform is arranged above the bearing base, and the lifting platform is used to install a knife-type cutting machine for drilling holes in the end cover, and the outer end of the lifting platform is slidably arranged inside the protective top plate; and further comprises: A driving cavity is provided inside the bearing base, and a protection mechanism is provided inside the driving cavity, and the protection mechanism includes a shielding slide seat; Wherein, a positioning mechanism is arranged in the middle of the top surface of the bearing base, and the positioning mechanism includes a positioning chassis, and the positioning chassis is fixedly installed in the middle of the top surface of the bearing base.

[0009] Preferably, the driving cavity is arranged to penetrate the outside of the top surface of the bearing base, and the lifting platform above the bearing base drives the drilling machine to be lifted and lowered so as to realize the drilling operation on the motor end cover.

[0010] Preferably, the protective mechanism includes a bidirectional threaded rod, and the bidirectional threaded rod is rotatably arranged on the front and rear sides of the lower interior of the driving cavity through bearings, and the right ends of the bidirectional threaded rods on the front and rear sides are meshed and connected to each other through a first sprocket mechanism, and the left and right outer walls of the symmetrically arranged bidirectional threaded rods are threadedly connected to the bottom end of the guide slider.

[0011] Preferably, the bottom surface of the shielding slide included in the protection mechanism is fixedly connected to the top of the front and rear guide slide blocks, and the inner end of the shielding slide is provided with chip removal slots at equal distances, and the chip removal slots at equal distances are through-connected to the driving cavity inside the supporting base, and metal chips are discharged into the driving cavity through the chip removal slots.

[0012] Preferably, the protection mechanism includes a flip-type arc plate, and the outer end of the flip-type arc plate is connected to the front and rear sides of the top of the left and right shielding slide seats through a torsion spring, and the inner end of the shielding slide seat after sliding extends to the bottom surface of the positioning chassis included in the positioning mechanism, and the flip-type arc plate connected by the torsion spring prevents metal chips of the end cover from splashing; The front and rear sides of the top of the shielding slide are connected to the bottom end of the chip removal nozzle by twisting rotation, and the interiors of the left and right chip removal nozzles are connected to the top of the air supply pipe, and the bottom end of the chip removal nozzle is fixedly provided with a guide gear, and the guide gear and the intermittent rack are meshed and connected with each other, and the intermittent rack is fixedly installed inside the supporting base.

[0013] Preferably, a conveying shaft is rotatably arranged on both the front and rear sides of the upper interior of the driving cavity through bearings, and the left end of the rear conveying shaft is meshed and connected with the left end of the bidirectional threaded rod included in the protective mechanism through a second sprocket mechanism, and a conveying belt is meshed in the middle of the front and rear conveying shafts.

[0014] Preferably, the conveyor crawler is installed below the bottom surface of the positioning chassis included in the positioning mechanism, and the metal chips entering the driving cavity from the end cover are carried by the conveyor crawler, so that the metal chips are discharged by the conveyor crawler after the drilling is completed; Elastic airbags are fixedly arranged on both sides of the left and right sides of the driving cavity, and the elastic airbags are connected to the bottom end of the air supply pipe, and the outer side of the elastic airbags and the guide slider are fitted and connected to each other, and the elastic airbags are driven to expand and compress through the movement of the guide slider, so as to clean the metal chips in the positioning mechanism and the chip removal slot through the air supply pipe and the chip removal nozzle.

[0015] Preferably, the positioning mechanism includes a driving worm and a driving worm wheel, and the driving worm wheel is rotatably arranged at the lower center position inside the positioning chassis through a bearing, and the driving worm is rotatably arranged on the right side inside the positioning chassis, and the driving worm and the driving worm wheel are meshingly connected.

[0016] Preferably, the positioning mechanism includes a driving turntable, and the driving turntable is rotatably arranged on the upper part of the positioning chassis, and the driving turntable is fixedly arranged at the center position of the top surface of the driving worm, and the interior of the driving turntable is provided with oblique slide grooves at equal angles, and the interior of the oblique slide grooves opened at equal angles is slidably connected to the top of the positioning locking seat.

[0017] Preferably, the top surface of the positioning chassis included in the positioning mechanism is fixedly provided with a positioning guide plate, and the interior of the positioning guide plate is provided with guide grooves at equal angles, and the interior of the guide grooves at equal angles is slidably connected to the top of the positioning locking seat, so that the positioning locking seats arranged at equal angles can be used to position and lock end covers of different specifications.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the tooling for drilling holes in the end caps of the micro-current motor can position the end caps of different specifications in a self-locking manner through the positioning mechanism above the bearing base, and the knife-type cutting machine following the lifting platform can perform trimming and processing on the drilling holes, and the shielding slide seat and the flip arc plate of the protective mechanism can block the flying metal chips during the drilling process, and the metal chips are collected and discharged outwardly through the conveying mechanism, thereby improving the efficiency of the drilling and cutting operation. The specific contents are as follows: 1. The driving worm inside the positioning chassis engages with the driving worm wheel and drives the turntable to rotate, and the positioning locking seat inside the oblique slide groove moves accordingly, and the guide slide groove limits the oblique movement of the positioning locking seat, so that the positioning locking seat contacts the outer wall of the motor end cover along the direction of the guide slide groove, thereby preventing the motor end cover from being dislocated during the subsequent drilling process.

[0019] 2. The bidirectional threaded rod drives the guide slider and the shielding slide to move inward, and the inner end of the shielding slide extends between the bearing base and the positioning chassis. At the same time, the flip arc plate installed on the front and rear sides of the shielding slide through the torsion spring flips inward and then fits against the outer wall of the positioning chassis.

[0020] The chip removal slots correspond to the left and right sides of the positioning chassis, so that the flying metal chips can be shielded by the shielding slide and the flip arc plate, and collected by the chip removal slots or directly falling on the conveyor belt inside the driving cavity, so as to avoid the flying metal chips from causing harm to the operator and also avoid increasing the burden of subsequent cleaning.

[0021] 3. The conveying shaft is driven to rotate, and the middle outer walls of the conveying shafts on the front and rear sides are meshed with conveying belts to drive the conveying belts and the metal chips collected on their top surfaces to move to the outside of the supporting base, and then discharge the metal chips for overall collection.

[0022] 4. The movement of the shielding slide compresses the elastic airbag, and during the movement, the guide gear at the bottom of the chip removal nozzle engages with the intermittent rack, so that the chip removal nozzle removes chips and cleans the positioning mechanism and the chip removal slot holes through reciprocating swing, preventing residual metal chips from affecting subsequent processing. At the same time, the chip removal work can be performed synchronously before and after the cutting work, thereby improving the cutting efficiency for drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the shielding slide of the present invention; Figure 3 This is a schematic diagram of the installation structure of the conveyor crawler of the present invention; Figure 4It is a schematic diagram of the connection structure between the bidirectional threaded rod and the conveying shaft of the present invention; Figure 5 This is a schematic diagram of the distribution structure of the conveying crawler and the shielding slide of the present invention; Figure 6 It is a schematic diagram of the structure of the shielding slide and the flip arc plate after the movement of the present invention; Figure 7 This is a schematic diagram of the exploded structure of the positioning mechanism of the present invention; Figure 8 This is a schematic diagram of the initial state structure of the driving turntable of the present invention; Fig. 9 This is a schematic diagram of the structure of the present invention after the turntable is driven to rotate; Fig.10 for Figure 4 Enlarged structural diagram of point A in the middle In the figure: 1. bearing base; 2. supporting side plates; 3. protective top plate; 4. lifting platform; 5. driving cavity; 6. shielding slide; 7. positioning chassis; 8. bidirectional threaded rod; 9. first sprocket mechanism; 10. guide slider; 11. chip removal slot; 12. flip arc plate; 13. conveying shaft; 14. second sprocket mechanism; 15. driving worm; 16. driving worm wheel; 17. driving turntable; 18. oblique slide; 19. positioning locking seat; 20. positioning guide plate; 21. guide slide; 22. conveying crawler; 23. chip removal nozzle; 24. air supply pipe; 25. guide gear; 26. intermittent rack; 27. elastic airbag. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 10 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problems existing in the processing of the existing motor end cover, this embodiment adopts the following technical scheme: a tool for drilling a micro-current motor end cover, comprising a bearing base 1, wherein a positioning mechanism is arranged in the middle of the top surface of the bearing base 1, and the positioning mechanism comprises a positioning chassis 7, and the positioning chassis 7 is fixedly installed in the middle of the top surface of the bearing base 1; the positioning mechanism comprises a driving worm 15 and a driving worm wheel 16, and the driving worm wheel 16 is rotatably arranged at the lower center position inside the positioning chassis 7 through a bearing, and the driving worm 15 is rotatably arranged on the right side inside the positioning chassis 7, and the driving worm 15 and the driving worm wheel 16 are meshingly connected.

[0026] The positioning mechanism includes a driving turntable 17, and the driving turntable 17 is rotatably arranged on the upper part of the positioning chassis 7, and the driving turntable 17 is fixedly arranged at the center position of the top surface of the driving worm 15, and the inside of the driving turntable 17 is provided with oblique slide grooves 18 at equal angles, and the inside of the oblique slide grooves 18 opened at equal angles is slidably connected to the top of the positioning locking seat 19; the top surface of the positioning chassis 7 included in the positioning mechanism is fixedly provided with a positioning guide plate 20, and the inside of the positioning guide plate 20 is provided with guide slide grooves 21 at equal angles, and the inside of the guide slide grooves 21 opened at equal angles is slidably connected to the top of the positioning locking seat 19, so as to perform positioning and locking for end covers of different specifications through the positioning locking seat 19 set at equal angles.

[0027] like Figure 1 , Figure 7-Figure 9 As shown, first, the motor end cover is placed on the top surface of the positioning guide plate 20 above the positioning chassis 7, and then the driving worm 15 inside the positioning chassis 7 is driven by the motor to rotate, and at the same time, the driving worm wheel 16 meshing with the driving worm 15 drives the driving turntable 17 fixedly connected on the top to rotate, and at the same time, the positioning locking seat 19 slidingly arranged inside the oblique slide groove 18 follows the movement, and the guide slide groove 21 opened inside the positioning guide plate 20 limits the oblique movement of the positioning locking seat 19, so that the positioning locking seat 19 moves synchronously toward the outer wall of the motor end cover along the direction of the guide slide groove 21, and then the positioning locking seat 19 set at an equal angle contacts the outer wall of the motor end cover, and the self-locking between the driving worm 15 and the driving worm wheel 16 prevents the motor end cover from being dislocated and offset during the subsequent drilling process.

[0028] Embodiment 2: In order to solve the problems existing in the processing of the existing motor end cover, this embodiment adopts the following technical scheme, the protective mechanism includes a bidirectional threaded rod 8, and the bidirectional threaded rod 8 is rotatably arranged on the front and rear sides of the lower interior of the driving cavity 5 through bearings, and the right ends of the bidirectional threaded rods 8 on the front and rear sides are meshed and connected with each other through the first sprocket mechanism 9, and the left and right outer walls of the symmetrically arranged bidirectional threaded rods 8 are both threadedly connected to the bottom end of the guide slider 10.

[0029] The bottom surface of the shielding slide 6 included in the protection mechanism is fixedly connected to the top of the front and rear guide slide blocks 10, and the inner end of the shielding slide 6 is provided with chip removal slots 11 at equal distances, and the chip removal slots 11 opened at equal distances are through-connected with the driving cavity 5 inside the supporting base 1, and the metal chips are discharged into the driving cavity 5 through the chip removal slots 11; the protection mechanism includes a flip arc plate 12, and the outer ends of the flip arc plate 12 are connected to the front and rear sides of the top of the left and right shielding slides 6 through torsion springs, and the inner end of the shielding slide 6 after sliding extends to the bottom surface of the positioning chassis 7 included in the positioning mechanism, and the flip arc plate 12 connected by the torsion spring prevents metal chips from the end cover from splashing.

[0030] like Figure 2 , Figure 4-Figure 5 As shown, the bidirectional threaded rod 8 meshingly connected to the inside of the supporting base 1 through the first sprocket mechanism 9 is driven by the motor to rotate, and then the bidirectional threaded rod 8 drives the guide slider 10 threadedly connected to the left and right outer walls and the shielding slide 6 to move inward synchronously, and the inner end of the shielding slide 6 extends to between the supporting base 1 and the positioning chassis 7. At the same time, the flip arc plate 12 installed on the front and rear sides of the shielding slide 6 by the torsion spring is flipped inward, and then fits against the outer wall of the positioning chassis 7.

[0031] At the same time, the shielding slide 6 and the chip removal slot 11 opened therein correspond to the left and right sides of the positioning chassis 7, so that when the drilling machine is drilling holes on the motor end cover, the flying metal chips can be blocked by the shielding slide 6 and the flip arc plate 12, and then fall downwards, and are collected by the chip removal slot 11 or directly fall on the conveyor belt 22 inside the driving cavity 5, thereby avoiding the flying metal chips from causing harm to the operator and increasing the burden of subsequent cleaning.

[0032] Embodiment 3: In order to solve the problems existing in the processing of the existing motor end cover, this embodiment adopts the following technical scheme: the supporting side plates 2 are fixedly installed on the left and right sides of the top surface of the bearing base 1, and the top of the supporting side plates 2 is fixedly provided with a protective top plate 3; a lifting platform 4 is provided above the bearing base 1, and the lifting platform 4 is used to install a knife-type cutting machine for drilling holes in the end cover, and the outer end of the lifting platform 4 is slidably arranged inside the protective top plate 3; a driving cavity 5 is opened inside the bearing base 1, and a protective mechanism is arranged inside the driving cavity 5, and the protective mechanism includes a shielding slide 6; the driving cavity 5 is arranged through the outside of the top surface of the bearing base 1, and the lifting platform 4 above the bearing base 1 drives the drilling machine to rise and fall, so as to realize the drilling operation for the motor end cover.

[0033] Conveying shafts 13 are rotatably arranged on both the front and rear sides of the upper interior of the driving cavity 5 through bearings, and the left end of the rear conveying shaft 13 is meshed and connected with the left end of the bidirectional threaded rod 8 included in the protective mechanism through a second sprocket mechanism 14, and conveying belts 22 are meshed in the middle of the conveying shafts 13 on both sides; the conveying belts 22 are installed below the bottom surface of the positioning chassis 7 included in the positioning mechanism, and the metal chips entering the interior of the driving cavity 5 from the end cover are carried by the conveying belts 22, so that the metal chips can be discharged through the conveying belts 22 after the drilling is completed.

[0034] like Figure 1-Figure 2 , Figure 4 As shown, the lifting platform 4 arranged above the supporting base 1 drives the drilling machine to descend along the direction of the supporting side plate 2, and then performs drilling operation on the motor end cover positioned by the positioning mechanism, and the flying metal chips are blocked and then enter the conveyor belt 22 inside the driving cavity 5 for collection. At the same time, the positioning mechanism ensures the stability of the motor end cover during the processing, thereby improving the efficiency of the drilling operation.

[0035] Furthermore, after the cutting operation of the end cover hole is completed, the shielding slide 6 is driven to move synchronously to the right side by the bidirectional threaded rod 8 to avoid affecting the disassembly of the motor end cover. At the same time, the bidirectional threaded rod 8 drives the meshing connected conveying shaft 13 to rotate through the second sprocket mechanism 14 at the left end, and the middle outer walls of the conveying shaft 13 on the front and rear sides are meshed with conveying crawlers 22 to drive the conveying crawlers 22 and the metal chips collected on the top surface thereof to move to the outside of the bearing base 1, and then discharge the metal chips for overall collection; Example 4: In order to solve the problems existing in the processing of the existing motor end cover, this embodiment adopts the following technical scheme: the front and rear sides of the top of the shielding slide 6 are connected to the bottom end of the chip removal nozzle 23 by twisting rotation, and the interiors of the chip removal nozzles 23 on the left and right sides are connected to the top of the air supply pipe 24, and the bottom end of the chip removal nozzle 23 is fixedly provided with a guide gear 25, and the guide gear 25 and the intermittent rack 26 are meshed and connected with each other, and the intermittent rack 26 is fixedly installed inside the supporting base 1.

[0036] Elastic airbags 27 are fixedly arranged on both the left and right sides of the interior of the driving cavity 5, and the elastic airbags 27 are connected to the bottom end of the air supply pipe 24, and the outer side of the elastic airbags 27 is fitted and connected to the guide slider 10, and the movement of the guide slider 10 drives the elastic airbags 27 to expand and compress, so as to clean the metal chips of the positioning mechanism and the chip removal slot 11 through the air supply pipe 24 and the chip removal nozzle 23.

[0037] like Figure 4-Figure 5 , Fig.10As shown, during the process of the shielding slide 6 moving inward, the guide slider 10 at its bottom end squeezes the elastic airbag 27 inward, so that the air inside it is transported to the interior of the chip removal nozzle 23 through the air supply pipe 24. At the same time, the chip removal nozzle 23 that moves with the shielding slide 6 intermittently meshes with the intermittent rack 26 through the guide gear 25 at the bottom end, so that the chip removal nozzle 23 is driven to rotate and swing back and forth during the movement of the shielding slide 6, thereby increasing its chip removal range for the positioning mechanism and the chip removal slot hole 11, preventing metal chips from remaining on the top of the positioning chassis 7 or falling on the top surface of the shielding slide 6, so as to improve the overall drilling and cutting work efficiency.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool for drilling holes in end caps of micro-current motors, comprising a bearing base (1), and supporting side plates (2) fixedly mounted on the left and right sides of the top surface of the bearing base (1), wherein a protective top plate (3) is fixedly arranged on the top of the supporting side plates (2); A lifting platform (4) is arranged above the bearing base (1), and the lifting platform (4) is used to install a knife-type cutting machine for drilling holes in the end cover, and the outer end of the lifting platform (4) is slidably arranged inside the protective top plate (3); It is characterized in that Also includes: A driving cavity (5) is provided inside the bearing base (1), and a protective mechanism is provided inside the driving cavity (5), and the protective mechanism includes a shielding slide seat (6); A positioning mechanism is provided in the middle of the top surface of the bearing base (1), and the positioning mechanism includes a positioning chassis (7), and the positioning chassis (7) is fixedly mounted in the middle of the top surface of the bearing base (1).

2. A micro-current motor end cover drilling tool according to claim 1, characterized in that: The driving cavity (5) is arranged to penetrate the outside of the top surface of the bearing base (1), and the lifting platform (4) above the bearing base (1) drives the drilling machine to be lifted and lowered, so as to realize the drilling operation on the motor end cover.

3. The tooling for drilling holes in the end cap of a micro-current motor according to claim 1, characterized in that: The protection mechanism comprises a bidirectional threaded rod (8), and the bidirectional threaded rod (8) is rotatably arranged at the front and rear sides of the lower interior of the driving cavity (5) via a bearing, and the right ends of the bidirectional threaded rods (8) at the front and rear sides are meshed and connected to each other via a first sprocket mechanism (9), and the left and right outer walls of the symmetrically arranged bidirectional threaded rods (8) are both threadedly connected to the bottom end of the guide slider (10).

4. A micro-current motor end cover drilling tool according to claim 3, characterized in that: The bottom surface of the shielding slide (6) included in the protection mechanism is fixedly connected to the top of the guide slide blocks (10) on the front and rear sides, and the inner end of the shielding slide (6) is provided with chip removal slots (11) at equal distances, and the chip removal slots (11) provided at equal distances are connected to the driving cavity (5) inside the supporting base (1), and metal chips are discharged into the driving cavity (5) through the chip removal slots (11).

5. The tooling for drilling holes in end caps of micro-current motors according to claim 4, characterized in that: The protection mechanism includes a flip-type arc plate (12), and the outer ends of the flip-type arc plate (12) are connected to the front and rear sides of the top ends of the left and right shielding slide seats (6) through torsion springs, and the inner ends of the shielding slide seats (6) after sliding extend to the bottom surface of the positioning chassis (7) included in the positioning mechanism, and the flip-type arc plate (12) connected by the torsion spring prevents metal chips of the end cover from splashing; The front and rear sides of the top of the shielding slide (6) are connected to the bottom of the chip removal nozzle (23) by twisting, and the insides of the left and right chip removal nozzles (23) are connected to the top of the air supply pipe (24), and the bottom of the chip removal nozzle (23) is fixedly provided with a guide gear (25), and the guide gear (25) and the intermittent rack (26) are meshed and connected with each other, and the intermittent rack (26) is fixedly installed inside the supporting base (1).

6. The tooling for drilling holes in the end cover of a micro-current motor according to claim 1, characterized in that: Conveying shafts (13) are rotatably arranged on both the front and rear sides of the upper interior of the driving cavity (5) via bearings, and the left end of the rear conveying shaft (13) is meshedly connected with the left end of a bidirectional threaded rod (8) included in the protection mechanism via a second sprocket mechanism (14), and conveying crawler belts (22) are meshedly arranged in the middle of the conveying shafts (13) on both the front and rear sides.

7. The tooling for drilling holes in end caps of micro-current motors according to claim 6, characterized in that: The conveyor crawler (22) is installed below the bottom surface of the positioning chassis (7) included in the positioning mechanism, and the metal chips entering the drive cavity (5) from the end cover are carried by the conveyor crawler (22), so that the metal chips can be discharged through the conveyor crawler (22) after the drilling is completed; Elastic airbags (27) are fixedly arranged on both left and right sides of the interior of the driving cavity (5), and the elastic airbags (27) are connected to the bottom end of the air supply pipe (24), and the outer side of the elastic airbag (27) and the guide slider (10) are connected to each other in a close fit, and the elastic airbag (27) is driven to expand and compress by the movement of the guide slider (10), so that metal chips in the positioning mechanism and the chip removal slot (11) can be cleaned through the air supply pipe (24) and the chip removal nozzle (23).

8. The tooling for drilling holes in end caps of micro-current motors according to claim 1, characterized in that: The positioning mechanism comprises a driving worm (15) and a driving worm wheel (16), wherein the driving worm wheel (16) is rotatably arranged at a lower center position inside the positioning chassis (7) via a bearing, and the driving worm (15) is rotatably arranged at the right side inside the positioning chassis (7), and the driving worm (15) and the driving worm wheel (16) are meshingly connected.

9. The tooling for drilling holes in end caps of micro-current motors according to claim 8, characterized in that: The positioning mechanism comprises a driving turntable (17), and the driving turntable (17) is rotatably arranged on the upper part of the positioning chassis (7), and the driving turntable (17) is fixedly arranged at the center position of the top surface of the driving worm (15), and the driving turntable (17) is provided with oblique sliding grooves (18) at equal angles inside, and the oblique sliding grooves (18) provided at equal angles are slidably connected to the top end of the positioning locking seat (19).

10. The tooling for drilling holes in the end cover of a micro-current motor according to claim 9, characterized in that: The positioning mechanism comprises a positioning chassis (7) on the top surface of which a positioning guide plate (20) is fixedly provided, and the interior of the positioning guide plate (20) is provided with guide grooves (21) at equal angles, and the interior of the guide grooves (21) provided at equal angles is slidably connected to the top of the positioning locking seat (19), so that the positioning locking seat (19) provided at equal angles can be used to position and lock end covers of different specifications.

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