High-precision punching device for stator integrated plastic package

Abstract

The application discloses a high-precision punching equipment for a stator integrated plastic package body and relates to the field of post-processing of motor parts. When the equipment is used, the pull plate is deflected by pulling, the displacement assembly is pressed down when the pull plate is deflected, the positioning assembly is positioned by cooperating with the positioning cover and the plug rod, the drill bit of the path plate positioning drilling and tapping module is located at the first drilling position, the clamps and the drill bit are subjected to elastic pressure by the pressure applying assembly, the elastic pressure is released instantaneously when the drill bit penetrates through the plastic package cover under the elastic pressure, the drill bit performs high-frequency axial reciprocating movement after penetrating through the plastic package cover, and the drill bit of the drilling and tapping module is automatically positioned at the second drilling position under the guidance of the displacement groove of the path plate of the guiding assembly during resetting. The mode realizes one-time positioning of the plastic package cover and two-time positioning of the drill bit, realizes accurate positioning of the first drilling position, the drill bit can be accurately positioned at the second drilling position or the third drilling position multiple times, and multiple hole positions can be accurately formed without deviation during operation.

Description

TECHNICAL FIELD

[0001] The application relates to the field of motor component post-processing, in particular to a high-precision punching device for a stator integrated plastic sealing body. BACKGROUND

[0002] In industrial control, especially in motor drive control applications, the detection of the rotating speed is important feedback data for realizing accurate motor drive control, and the rotating speed of the motor is often detected for rotating speed feedback and forming a speed closed-loop control. The motor with accurate control is generally provided with a circuit board, and the existing conventional design of the circuit board and the stator assembly has poor waterproof effect, so the related plastic sealing structure is widely applied to the motor, however, the Hall element integrated on the circuit board needs to keep measuring the rotating speed of the stator or the rotor, and the Hall element needs to pass through the plastic sealing body for detection, in order to guarantee the durability and data accuracy, multiple Hall elements are arranged at multiple points in the same radius, which leads to the need of accurate punching at multiple points of the plastic sealing body in post-processing.

[0003] Based on the high cost of the automatic equipment and the actual production quantity, the basic mainstream is still a semi-automatic post-processing operation assisted by manual operation, which has the characteristics of low cost and stable reliability, for small plastic sealing bodies, multiple detection holes corresponding to multiple Hall elements need to be positioned multiple times after the plastic sealing bodies are positioned by manual operation, in the multiple positioning operations, the manual operation is prone to deviation, which causes the hole position to deviate, especially for small plastic sealing bodies, the positioning accuracy of manual operation is more difficult to guarantee, which leads to a low yield.

[0004] After the plastic sealing body is positioned, multiple detection holes corresponding to multiple Hall elements need to be positioned multiple times, without using sensor automatic calibration control, in the multiple positioning operations of manual operation, the positioning deviation is prone to occur, which causes the hole position to deviate, and the Hall element is blocked, especially for small plastic sealing bodies, multiple drill bits cannot be used for parallel synchronous drilling operation, in the hole position calibration process of the drill bits in turn, the manual positioning accuracy is more difficult to maintain a high pass rate, and cannot meet the use requirement.

[0005] In addition, under the premise of guaranteeing the accurate positioning of the drill bit, the accurate positioning and clamping of the plastic sealing body are crucial, at this time, the separate control of the positioning and clamping of the plastic sealing body, and the continuous replacement of multiple plastic sealing bodies for processing undoubtedly greatly increase the work intensity. SUMMARY

[0006] The application aims at solving the problem that the non-automatic treatment can effectively reduce the cost, but the yield and efficiency are low in the post-processing of the plastic sealing body, and proposes a high-precision punching device for a stator integrated plastic sealing body.

[0007] In order to achieve the above object, the present application adopts the following technical scheme: a high-precision punching equipment for a stator integrated plastic package body, comprising an external component and a sliding material component fixed at the bottom thereof, the sliding material component comprises a plastic package cover, the external component comprises a shell and a path plate embedded in the side wall of the shell, a displacement component for axial displacement is installed in the shell, the displacement component comprises a top plate and a driver installed thereon, and a driving gear is installed at the output end of the driver,

[0008] A positioning component is installed on the lower surface of the top plate, the positioning component comprises a plug rod fixed with the top plate, a gear cylinder engaged with the driving gear is rotationally arranged on the surface of the plug rod, and a positioning cover is slid through the bottom end of the plug rod;

[0009] One side of the top plate is provided with a drilling and tapping module, the drilling and tapping module comprises a guide component limiting sliding on one side of the top plate, and a pressing component penetrating the surface of the guide component, and a clamp for clamping a drill bit is rotationally installed on the surface of the pressing component, and a driven gear engaged with the outer wall of the gear cylinder is arranged at the top end of the clamp;

[0010] When the displacement component is pressed down, the positioning component positions the plastic package cover, the path plate positions the drilling and tapping module, the pressing component applies elastic pressure to the clamp, until the drill bit penetrates the plastic package cover, the elastic pressure is released, and after the drill bit penetrates the plastic package cover, the drill bit performs high-frequency axial reciprocating motion, when resetting, the drilling and tapping module is automatically positioned at the next drilling and tapping position under the guidance of the guide component on the path plate, and after drilling and tapping is completed, the drilling and tapping module is reset under the inertial force of the engagement of the gear cylinder and the driven gear.

[0011] Further description of the above technical scheme: the external component further comprises a side frame fixed outside the shell and used for limiting the path plate, and a pull plate is movably connected to the surface of the shell, and a through hole is formed through the surface of the pull plate.

[0012] Further description of the above technical scheme: the path plate comprises a plate body and a plurality of guide grooves formed in the inner side wall of the plate body, a displacement groove is communicated between two adjacent guide grooves, and a reset groove is communicated at the top end of the farthest guide groove and displacement groove on the plate body;

[0013] The plate body is provided with a clamping edge fixedly embedded with the shell on both sides.

[0014] Further description of the above technical scheme: the displacement component further comprises a guide rod fixed to the inner wall of the shell, the top plate is slid through the surface of the guide rod, a sliding rail is fixedly connected to the lower surface of the top plate, a pressing plate is fixedly connected to the upper surface of the top plate, and one end of the pressing plate is limitingly slid in the through hole.

[0015] As a further description of the above technical solution: the guide assembly comprises a connecting plate, the upper surface of the connecting plate is fixedly connected with a sliding piece matched with the sliding of the sliding rail, a limit clamp is arranged on the surface of the connecting plate, a top head is slidably arranged in the limit clamp, and a top spring is arranged on one side of the top head.

[0016] As a further description of the above technical solution: the pressure applying assembly comprises a retainer, two screw columns are symmetrically fixed on the upper surface of the retainer, the screw columns are slidably arranged on the surface of the connecting plate, and the screw column surfaces are symmetrically provided with retaining springs on both sides of the connecting plate, and a nut is threadedly matched with the top end of the screw column.

[0017] As a further description of the above technical solution: the positioning assembly further comprises a positioning spring fixed on the surface of the insertion rod, the bottom end of the positioning spring is fixedly connected with the top end of the positioning cover, the insertion rod and the gear cylinder are connected through a rotating piece, and the inner wall of the gear cylinder is engaged with the driving gear.

[0018] As a further description of the above technical solution: one side of the positioning cover is provided in an open shape, and the bottom of the positioning cover is provided in an expanded shape.

[0019] As a further description of the above technical solution: the depth of the displacement groove gradually decreases from bottom to top until the depth is consistent with that of the guide groove.

[0020] As a further description of the above technical solution: the material sliding assembly comprises a slide way fixed with the shell for sliding of the plastic sealing cover, a material falling port is formed in the inner wall of the slide way, and a material collecting disc is arranged below the material falling port.

[0021] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0022] When the present application is used, the pull plate is deflected by pulling, the displacement assembly is pressed down when the pull plate is deflected, the positioning assembly positions the plastic sealing cover through the cooperation of the insertion rod and the positioning cover, the drill bit of the drilling and tapping module is located at the first drilling position, the pressure applying assembly applies elastic pressure to the clamp and the drill bit, and when the drill bit penetrates the plastic sealing cover under the elastic pressure, the elastic pressure is released instantaneously, the drill bit performs high-frequency axial reciprocating movement after penetrating the plastic sealing cover, and when the drill bit is reset, the drill bit of the drilling and tapping module is automatically positioned at the second drilling position under the guidance of the displacement groove on the path plate, the one-time positioning of the plastic sealing cover is realized, the two-time positioning is realized through the cooperation of the expansion of the positioning cover and the axial positioning of the plastic sealing cover, the plastic sealing cover is positioned three times after the drill bit penetrates, the precise positioning of the first drilling position is realized, the precise positioning of multiple detection holes is realized through the cooperation of the path plate and the displacement assembly, the precise positioning of the workpiece and the hole position is realized, and the multiple hole position forming is precisely and without deviation under the simple operation of full manual operation.

[0023] And when the drill bit penetrates, the plastic sealing cover can be quickly axially reciprocated under the maximum pressure pressing state of the positioning assembly after the drill bit penetrates, so as to quickly smooth the inner wall of the hole and discharge the debris, and when the drill bit moves out and resets, the inner wall of the detection hole drilled by the drill bit is relatively smooth, and displacement under the action of friction force does not occur when the drill bit moves out, and then the pressure of the plastic sealing cover is synchronously reduced, so that the smoothness of the hole is improved, the plastic sealing cover does not need to be positioned by a large pressing force, and when the drilling is completed, the plastic sealing cover does not move together with the drill bit, the traditional clamp matching mode is abandoned, the accuracy is maximally guaranteed, and the efficiency and convenience of personnel operation are improved.

[0024] After the drilling and tapping are completed, the driven gear of the drilling and tapping module is engaged with the gear cylinder, and based on the friction force action of the gear cylinder and the driven gear, the drilling and tapping module has a reset inertia force, and when the top head slides into the reset groove, the top head can be quickly reset under the action of the inertia force, so that the continuity of the machining of multiple plastic sealing covers is realized. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective view of the present application;

[0026] Figure 2 It is another perspective view of the present application;

[0027] Figure 3 It is a front view of the present application;

[0028] Figure 4 It is a sectional view of the external assembly of the present application;

[0029] Figure 5 It is a sectional view of the external assembly of the present application;

[0030] Figure 6 It is a structural view of the internal installation of the external shell of the present application;

[0031] Figure 7 It is a cooperation view of the displacement assembly and the positioning assembly of the present application;

[0032] Figure 8 It is an installation state view of the drilling and tapping module of the present application;

[0033] Figure 9 It is a perspective view of the drilling and tapping module of the present application;

[0034] Figure 10 It is a structural view of the guiding assembly and the pressing assembly of the present application;

[0035] Figure 11 It is a perspective view of the path plate of the present application;

[0036] Figure 12 Schematic diagram of partial explosion of the present application;

[0037] Figure 13 Schematic diagram of automatic implementation of the present application.

[0038] Legend:

[0039] 10, external component; 11, shell; 12, path plate; 121, plate body; 122, guide groove; 123, displacement groove; 124, reset groove; 125, clamping edge; 13, side frame; 14, pull plate; 15, through hole;

[0040] 20, displacement assembly; 21, top plate; 22, driver; 23, driving gear; 24, guide rod; 25, pressing plate; 26, slide rail;

[0041] 30, drilling and tapping module; 31, guide assembly; 311, connecting plate; 312, slide; 313, limiting clamp; 314, top head; 315, top spring; 32, pressure applying assembly; 321, retainer; 322, threaded column; 323, nut; 324, retaining spring; 33, clamp; 34, driven gear; 35, drill bit;

[0042] 40, sliding material assembly; 41, slide; 42, material falling port; 43, material collecting disc; 44, plastic sealing cover;

[0043] 50, positioning assembly; 51, insertion rod; 52, rotating piece; 53, gear cylinder; 54, positioning spring; 55, positioning cover. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0045] At present, the driving precision requirement of most motor application scenes is not high. In production, the workpieces of the precision control motor and the ordinary motor are standard parts produced uniformly. The difference is that the precision control motor is realized through speed monitoring. Speed detection is the core link of motor precise driving control. The Hall element is used for speed detection and needs to pass through the plastic package body to collect data. Therefore, in some customer groups with precise control, the controller can be installed after the plastic package body is processed and the speed monitoring function is added. This method can produce various specifications and types of motor parts without changing the production line. However, the cost of adding the processing procedure to the existing mature production line is high, and it is difficult to change the whole system with one change. Therefore, for limited motor specifications, local part post-processing by artificial is the most economical choice.

[0046] As shown in Figure 1 - Figure 13 The present application provides a stator integrated plastic package body high-precision punching equipment, which comprises an external component 10 and a sliding material component 40 fixed at the bottom thereof. The sliding material component 40 comprises a plastic package cover 44. The external component 10 comprises a shell 11 and a path plate 12 embedded in the side wall of the shell 11. An axial displacement component 20 is installed in the shell 11. The displacement component 20 comprises a top plate 21 and a driver 22 installed thereon. A driving gear 23 is installed at the output end of the driver 22.

[0047] A positioning component 50 is installed on the lower surface of the top plate 21. The positioning component 50 comprises a plug rod 51 fixed to the top plate 21. A gear cylinder 53 engaged with the driving gear 23 is rotatably arranged on the surface of the plug rod 51. A positioning cover 55 is slid through the bottom end of the plug rod 51.

[0048] A drilling and tapping module 30 is arranged on one side of the top plate 21. The drilling and tapping module 30 comprises a guide component 31 limiting sliding on one side of the top plate 21 and a pressing component 32 penetrating the surface of the guide component 31. A clamp 33 clamping a drill bit 35 is rotatably installed on the surface of the pressing component 32. A driven gear 34 engaged with the outer wall of the gear cylinder 53 is arranged at the top end of the clamp 33.

[0049] When the displacement component 20 is pressed down, the positioning component 50 positions the plastic package cover 44. The path plate 12 positions the drilling and tapping module 30. The pressing component 32 applies elastic pressure to the clamp 33. When the drill bit 35 penetrates the plastic package cover 44, the elastic pressure is released. After the drill bit 35 penetrates the plastic package cover 44, high-frequency axial reciprocating motion is performed. When reset, the guide component 31 is guided by the path plate 12 to automatically position the next drilling and tapping position of the drilling and tapping module 30. After drilling and tapping is completed, the drilling and tapping module 30 is reset under the inertial force of the engagement of the gear cylinder 53 and the driven gear 34.

[0050] Specifically, as shown in Figure 1As shown: the external component 10 further includes a side frame 13 fixed outside the shell 11 and used for limiting the path plate 12, the surface of the shell 11 is movably connected with a pull plate 14, and the surface of the pull plate 14 is provided with a through hole 15.

[0051] By arranging the shell 11, the shell 11 can protect the inside, avoid the safety hazard caused by the mistaken touch of the operator, and the shell 11 is fixed with the guide rod 24, so that the guide rod 24 can support the top plate 21 to slide.

[0052] The side frame 13 on the surface of the shell 11 can press and hold the path plate 12 on one side of the shell 11, can perform maintenance work such as oiling on the path plate 12 when needed, and can replace the path plate 12 with different drilling hole spacings when needed.

[0053] The pull plate 14 can control the displacement of the top plate 21 by pushing and pulling, when the top plate 21 is in the reset state, continuous pushing can remove the blockage of the positioning cover 55 to the plastic sealing cover 44, so that it can slide in the slide 41, and when the positioning cover 55 blocks the plastic sealing cover 44, continuous pulling can make the insertion rod 51 penetrate the plastic sealing cover 44 after the initial positioning of the positioning cover 55, and perform secondary accurate positioning.

[0054] Specifically, as shown in the figure, Figure 11 The path plate 12 includes a plate body 121 and a plurality of guide grooves 122 arranged in the inner side wall of the plate body 121, and a displacement groove 123 is arranged in communication between two adjacent guide grooves 122, and a reset groove 124 is arranged in communication between the farthest guide groove 122 and the displacement groove 123 on the plate body 121.

[0055] The plate body 121 is provided with a clamping edge 125 fixedly embedded with the shell 11 on both sides.

[0056] By arranging the guide groove 122, the top head 314 can slide in the guide groove 122 under the pressure of the top spring 315, and when it moves to the displacement groove 123, the top head 314 is locally clamped and cannot move reversely under the action of the top spring 315.

[0057] Through the design of the path plate 12, compared with the method of using a stepping motor combined with a sensor, the threshold is lower, and it is more reliable for fixed type workpiece machining, and the maintenance cost is low.

[0058] Specifically, as shown in the figure, Figure 8 The displacement assembly 20 further includes a guide rod 24 fixedly arranged on the inner wall of the shell 11, the top plate 21 is arranged to slide on the surface of the guide rod 24, the lower surface of the top plate 21 is fixedly connected with a sliding rail 26, the upper surface of the top plate 21 is fixedly connected with a pressing plate 25, and one end of the pressing plate 25 is arranged to slide in the through hole 15.

[0059] Through the setting of the guide rod 24, the displacement direction and distance of the top plate 21 can be limited, and in subsequent equipment upgrading, a version in which the guide rod 24 is installed with an auxiliary spring can be used to eliminate the need for manually pushing or pulling the pull plate 14, and only pulling is needed;

[0060] The lower surface of the top plate 21 is provided with an arc-shaped sliding rail 26, which can slide in cooperation with an arc-shaped sliding piece 312, and the connecting plate 311 can move under the cooperation of the sliding rail 26 and the sliding piece 312.

[0061] Specifically, as shown in Figure 10 The guide assembly 31 includes a connecting plate 311, the upper surface of the connecting plate 311 is fixedly connected with a sliding piece 312 that cooperates with the sliding rail 26 to slide, and the surface of the connecting plate 311 is provided with a limiting clamp 313, the limiting clamp 313 slidably has a top head 314 therein, and one side of the top head 314 is provided with a top spring 315.

[0062] By setting the limiting clamp 313, the limiting clamp 313 can limit the small-amplitude sliding out and contraction of the top head 314 to adapt to the depth change of the displacement groove 123.

[0063] Specifically, as shown in Figure 9 and Figure 10 The pressure applying assembly 32 includes a retaining frame 321, the upper surface of the retaining frame 321 is symmetrically fixed with two threaded columns 322, the threaded columns 322 slide through the surface of the connecting plate 311, and the surface of the threaded columns 322 is symmetrically provided with retaining springs 324 on both sides of the connecting plate 311, and the top end of the threaded columns 322 is threadedly matched with a nut 323.

[0064] By rotating the nut 323, the pressure of the two retaining springs 324 on the connecting plate 311 can be controlled, so that the reciprocating vibration amplitude of the drill bit 35 decreases and the frequency increases under the change of the elastic force.

[0065] The surface of the threaded column 322 on the retaining frame 321 clamps the connecting plate 311 through the two symmetric retaining springs 324, when the retaining frame 321 moves, the threaded column 322 slides on the connecting plate 311, the two retaining springs 324 provide an elastic force by one stretching and one compressing, and an elastic pressure is applied to the drill bit 35 through the elastic force, the drilling operation of the plastic package body is maintained, when the penetration is completed, the elastic force is released, based on no damping effect, the retaining spring 324 can reciprocate with the retaining frame 321 to move axially and stop quickly, realizing the multiple dredging of the drill bit 35 in the hole after drilling through.

[0066] Specifically, as shown in Figure 7As shown: the positioning assembly 50 further comprises a positioning spring 54 fixed on the surface of the insertion rod 51, the bottom end of the positioning spring 54 is fixedly connected with the top end of the positioning cover 55, the insertion rod 51 is connected with the gear cylinder 53 through the rotating piece 52, and the inner wall of the gear cylinder 53 is engaged with the driving gear 23.

[0067] When the positioning spring 54 is located on the surface of the insertion rod 51 and one end is fixed and the other end is fixed on the positioning cover 55, a pressure can be applied to the positioning cover 55 through the positioning spring 54 when the insertion rod 51 penetrates the plastic sealing cover 44. This fixing mode can accurately position the axial position of the plastic sealing cover 44 through the insertion rod 51, and the positioning cover 55 can apply pressure after the initial blocking positioning, avoiding the small axial movement of the plastic sealing cover 44, ensuring the stability of the drilling process, and the fixing mode is stable and reliable, convenient to operate, and does not need a separate clamp 33.

[0068] Specifically, as shown in the figure, Figure 6 As shown: one side of the positioning cover 55 is provided in an open manner, and the bottom of the positioning cover 55 is provided in an expanded manner.

[0069] The open side of the positioning cover 55 can block the plastic sealing cover 44 sliding in the sliding channel 41, and the expanded bottom can gather the plastic sealing cover 44 and align it axially with the insertion rod 51 when pressed down.

[0070] Specifically, as shown in the figure, Figure 11 As shown: the depth of the displacement groove 123 gradually decreases from bottom to top until the depth is consistent with the guide groove 122.

[0071] Through the transition change from deep to shallow in depth, the displacement groove 123 can be disconnected with the previous guide groove 122 and transitioned with the next guide groove 122.

[0072] Specifically, as shown in the figure, Figure 3 As shown: the sliding material assembly 40 comprises a sliding channel 41 fixed with the shell 11 for sliding of the plastic sealing cover 44, the inner wall of the sliding channel 41 is provided with a material falling port 42, and the lower side of the material falling port 42 is provided with a material collecting disc 43.

[0073] By providing the sliding channel 41, the inclined sliding channel 41 can guide the sliding of the plastic sealing cover 44. When drilling, the material falling port 42 on the sliding channel 41 can prevent the drill bit 35 from being touched after penetrating, and can drop and collect the drilling waste into the material collecting disc 43. When the drilling is reciprocatingly and rapidly moving axially, the waste can be discharged, keeping the hole smoother.

[0074] Because the plastic package is small, it is difficult to use multiple drill bits 35 to drill simultaneously, so it is necessary to calibrate each hole one by one and drill in turn, further reducing the processing efficiency and increasing the risk of error. The present scheme drives the displacement assembly 20 to lower by deflecting the pull plate 14, and the positioning assembly 50 completes the fixation and accurate positioning of the plastic cover 44 by cooperating with the positioning cover 55 through the insertion rod 51. The drill bit 35 accurately completes the processing of the first drilling position under the guidance of the path plate 12, and automatically adjusts to the second and third drilling positions, realizing high-precision positioning of multi-hole processing and avoiding the deviation caused by manual positioning multiple times.

[0075] The electric clamp 33 and the automatic drill machine of the automatic equipment can coordinate to ensure processing accuracy and efficiency; but in manual operation, if the clamping and drilling are to be controlled at the same time, it is difficult to coordinate and significantly increases the worker's work intensity, reducing the operation efficiency and stability. The plastic cover 44 falls in the slide 41 and is blocked by the positioning cover 55, and then the positioning cover 55 is positioned, and then the insertion rod 51 is aligned under the action of the lower flared, and then the insertion rod 51 is positioned three times to ensure the accuracy of the positioning, and after three times of positioning, the positioning cover 55 holds the plastic cover 44 under the pressure of the positioning spring 54, maintaining the final holding after three times of positioning.

[0076] In use, the plastic cover 44 is placed in the specified orientation on the slide 41, and the plastic cover 44 is blocked by the insertion rod 51, and then the pull plate 14 is lifted, the pull plate 14 is kept moving upward with the top plate 21, the top plate 21 slides to the horizontal height of the reset groove 124 through the cooperation of the slide rail 26 and the slide 312 with the top head 314 of the displacement assembly 20, the insertion rod 51 is moved upward, the plastic cover 44 is blocked by the positioning cover 55, the driver 22 is started, the driver 22 rotates through the driving gear 23, the gear cylinder 53 with the driven gear 34, and the driven gear 34 rotates through the clamp 33 with the drill bit 35. By pulling the pull plate 14, when the pull plate 14 deflects, the end of the pressing plate 25 slides in the through hole 15 to eliminate the horizontal displacement, so that the pressing plate 25 can only move axially, and the pressing plate 25 moves with the top plate 21, and the top plate 21 directly passes the insertion rod 51 through the plastic cover 44, so that the plastic cover 44 is positioned, and at the same time the positioning spring 54 continuously compresses to hold the positioning cover 55 to the plastic cover 44;

[0077] During the pressing process, the top plate 21 slides with the top head 314 in the rightmost guide groove 122, and when it moves to a certain distance, the top head 314 slides into the displacement groove 123 at the bottom under the elastic force of the top spring 315. The depth of the bottom of the displacement groove 123 is greater than that of the guide groove 122, and the top is a slope with the same depth as the guide groove 122. Continue to move axially after being clamped into the displacement groove 123.

[0078] When the drill bit 35 is continuously pressed down, it contacts the plastic cover 44 and drills a hole in high-speed rotation. The drilling speed is different based on the material thickness or material difference of different plastic covers 44. If the material is more difficult to penetrate, the drill bit 35 will be subjected to greater resistance, and the greater the resistance, the greater the deformation of the two retaining springs 324, and the greater the pressure on the drill bit 35. When the drill bit 35 penetrates, the lost pressure makes the retaining spring 324 recoil, and the drill bit 35 reciprocates in the detection hole and adapts to the inner wall. When the detection hole and the drill bit 35 are separated, the pressure of the positioning spring 54 on the positioning cover 55 also decreases.

[0079] When the top plate 21 is reset, the top head 314 slides in the displacement slot 123. First, it slides axially for a certain distance and then obliquely. The top head 314 slides while the slider 312 on the connecting plate 311 slides horizontally on the slide rail 26, so that the drill bit 35 slides out of the detection hole and moves horizontally until it is positioned in another guide slot 122.

[0080] When the drilling is completed, the top head 314 slides into the reset slot 124. At this time, based on the high-speed meshing of the gear cylinder 53 and the driven gear 34, it has a clockwise inertial force, which makes the top head 314 slide laterally in the reset slot 124 to achieve reset.

[0081] Since multiple Hall elements are arranged in the plastic package, accurate holes must be drilled at multiple points on the same radius. However, the existing method mainly relies on manual operation of semi-automatic equipment to complete the processing. Although this method is low in cost, it is difficult to maintain accurate positioning when processing small plastic packages, and manual positioning multiple times is prone to deviation, resulting in hole displacement or inaccuracy.

[0082] The present scheme solves the problem of deviation in the positioning process, which leads to hole displacement or inaccuracy, by accurately positioning and drilling multiple positions of the drill bit 35 through the fixed motion trajectory of the path plate 12. The overall process is not intelligent, and the requirements for operators are low, and the operation steps are simple, so the staff can quickly get started.

[0083] Especially in the drilling of small plastic packages, the accuracy of manual positioning is difficult to guarantee, and the Hall elements are easily blocked due to hole displacement, affecting the detection accuracy and product yield. In addition, the traditional method increases the complexity and uncertainty of processing through multiple manual positioning operations. The overall operation process of the present scheme is to pull the push plate 14 multiple times to achieve accurate positioning and forming of multiple detection holes, which is simple to operate, high in processing accuracy, and efficient.

[0084] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A high-precision drilling device for an integrated stator encapsulation body, comprising an external component (10) and a sliding component (40) fixed at its bottom, wherein the sliding component (40) includes an encapsulation cap (44), characterized in that, The external component (10) includes a housing (11) and a path plate (12) fitted into the side wall of the housing (11). A displacement component (20) for axial displacement is installed inside the housing (11). The displacement component (20) includes a top plate (21) and a driver (22) mounted thereon. A drive gear (23) is installed at the output end of the driver (22). A positioning component (50) is installed on the lower surface of the top plate (21). The positioning component (50) includes a rod (51) fixed to the top plate (21). A gear cylinder (53) that meshes with the drive gear (23) is rotatably provided on the surface of the rod (51). A positioning cover (55) slides through the bottom end of the rod (51). A drilling module (30) is provided on one side of the top plate (21). The drilling module (30) includes a guide component (31) that is limited and slidable on one side of the top plate (21), and a pressure component (32) that penetrates through the surface of the guide component (31). A clamp (33) for holding a drill bit (35) is rotatably mounted on the surface of the pressure component (32). A driven gear (34) that meshes with the outer wall of the gear cylinder (53) is provided at the top of the clamp (33). When the displacement component (20) is pressed down at its initial position, the positioning component (50) positions the plastic cover (44), the path plate (12) positions the drilling module (30), and the pressure application component (32) applies elastic pressure to the clamp (33) until the drill bit (35) penetrates the plastic cover (44). The elastic pressure is then released, and the drill bit (35) reciprocates axially at high frequency after penetrating the plastic cover (44). When resetting, the guide component (31) guides the drilling module (30) to automatically position the next drilling position under the guidance of the path plate (12). After drilling is completed, the drilling module (30) resets to its initial position under the action of the inertial force of the meshing gear cylinder (53) and driven gear (34). The path plate (12) includes a plate body (121) and a plurality of guide grooves (122) opened on its inner sidewall. A displacement groove (123) is connected between two adjacent guide grooves (122). A reset groove (124) is connected to the top of the guide groove (122) and the displacement groove (123) that are furthest apart on the plate body (121). The plate body (121) has retaining edges (125) on both sides that fit into the shell (11). The displacement assembly (20) also includes a guide rod (24) fixed to the inner wall of the housing (11), the top plate (21) slides through the surface of the guide rod (24), the lower surface of the top plate (21) is fixedly connected to a slide rail (26), the upper surface of the top plate (21) is fixedly connected to a pressure plate (25), and one end of the pressure plate (25) is limited to slide in the through hole (15); The guide assembly (31) includes a connecting plate (311), and a sliding member (312) that slides in cooperation with the slide rail (26) is fixedly connected to the upper surface of the connecting plate (311). A limiting clamp (313) is provided on the surface of the connecting plate (311), and a top head (314) slides inside the limiting clamp (313). A top spring (315) is provided on one side of the top head (314). By setting the guide groove (122), the top head (314) can slide in the guide groove (122) under the pressure of the top spring (315). When it moves to the displacement groove (123), the top head (314) slides out and partially gets stuck under the action of the top spring (315), making it unable to move in the opposite direction.

2. The high-precision drilling equipment for an integrated stator encapsulation body according to claim 1, characterized in that, The external component (10) also includes a side frame (13) fixed outside the housing (11) and used for limiting the path plate (12). A pull plate (14) is movably connected to the surface of the housing (11), and a through hole (15) is opened through the surface of the pull plate (14).

3. The high-precision drilling equipment for an integrated stator encapsulation body according to claim 2, characterized in that, The pressure application assembly (32) includes a retainer (321), on the upper surface of which two threaded posts (322) are symmetrically fixed. The threaded posts (322) slide through the surface of the connecting plate (311), and retaining springs (324) fixed to the surface of the threaded posts (322) are symmetrically arranged on both sides of the connecting plate (311). The top of the threaded post (322) is threaded with a nut (323).

4. The high-precision drilling equipment for an integrated stator encapsulation body according to claim 1, characterized in that, The positioning assembly (50) also includes a positioning spring (54) fixed on the surface of the insert rod (51), the bottom end of the positioning spring (54) being fixedly connected to the top end of the positioning cover (55), the insert rod (51) being connected to the gear cylinder (53) via a rotating component (52), and the inner wall of the gear cylinder (53) meshing with the drive gear (23).

5. A high-precision drilling device for an integrated stator encapsulation body according to claim 4, characterized in that, The positioning cover (55) has an opening on one side and a flared bottom.

6. The high-precision drilling equipment for an integrated stator encapsulation body according to claim 3, characterized in that, The depth of the displacement groove (123) gradually decreases from bottom to top until it matches the depth of the guide groove (122).

7. The high-precision drilling equipment for an integrated stator encapsulation body according to claim 1, characterized in that, The material sliding assembly (40) includes an inclined slide (41) for supporting the sliding of the plastic seal cap (44), and a material drop port (42) is provided on the inner wall of the slide (41), and a material collection tray (43) is provided below the material drop port (42).

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