Full-automatic micro-drill grinding machine

Abstract

The utility model discloses a full-automatic micro drill grinding machine which comprises a machine table, a rotary material conveying mechanism is arranged on the machine table, a feeding and discharging mechanism, a spiral groove forming mechanism, a cutting edge grinding mechanism and a segment difference back grinding mechanism are sequentially arranged on the machine table in the moving direction of the rotary material conveying mechanism, and the feeding and discharging mechanism is used for taking and placing a micro drill on the rotary material conveying mechanism; the spiral groove forming mechanism, the cutting edge grinding mechanism and the segment difference back grinding mechanism are connected with the rotary material conveying mechanism, the spiral groove forming mechanism is used for grinding a spiral groove in a micro drill on the rotary material conveying mechanism, and the cutting edge grinding mechanism is used for grinding a cutting edge of the micro drill on the rotary material conveying mechanism. The segment difference back grinding mechanism is used for grinding the cutter back of the micro drill and machining a segment difference groove in the micro drill. According to the utility model, spiral groove opening, blade grinding, back grinding and segment difference groove opening processing can be simultaneously carried out, the processing efficiency and the yield are greatly improved, manual participation is not needed in the whole process, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a full-automatic micro-drill grinding machine. Background Art

[0002] Drill bits are commonly used hole-making tools, which are made by grinding and cutting rods. PCB micro drills are micro drills used to make holes in PCB circuit boards. As electronic products become thinner and lighter, the specifications of PCB micro drills are also getting smaller and smaller. Among the micro drills that can be produced at present, the minimum diameter can reach 0.01 mm. The formed micro drill is mainly composed of a rod at the bottom and a drill needle at the top.

[0003] In the process of grinding the drill bit, multiple steps are usually required, including at least: opening spiral grooves, grinding blades, grinding backs and opening step grooves. Currently, there are few existing micro-drill processing equipment that integrates all processing steps. Most of them require multiple devices to cooperate to complete. This results in the need for the micro-drill to be transported and circulated between multiple devices, which not only has a relatively low processing efficiency; on the other hand, the circulation between multiple devices inevitably requires multiple clamping, and the drill bit of the micro-drill is very small. Multiple clamping also greatly increases the risk of being clamped and damaged, which can easily lead to poor processing and is not conducive to high-quality processing needs. Utility Model Content

[0004] In order to solve some or all of the problems existing in the above-mentioned prior art, the utility model provides a fully automatic micro-drill grinding machine, including a machine platform, a rotating material transporting mechanism is provided on the machine platform, a loading and unloading mechanism, a spiral groove opening mechanism, a blade grinding mechanism and a step-back grinding mechanism are sequentially provided on the machine platform along the movement direction of the rotating material transporting mechanism, a first clamping mechanism is provided at a position on the machine platform corresponding to the loading and unloading mechanism, the loading and unloading mechanism is used to place the micro-drill to be processed on the rotating material transporting mechanism, and to take out the processed micro-drill from the rotating material transporting mechanism, the first clamping mechanism is used to clamp the micro-drill on the rotating material transporting mechanism that is aligned with the loading and unloading mechanism; A second clamping mechanism is respectively provided at the positions corresponding to the spiral groove opening mechanism, the blade grinding mechanism and the step back grinding mechanism on the machine platform, and the second clamping mechanism is used to clamp the micro-drill on the rotating material transporting mechanism aligned therewith; the spiral groove opening mechanism, the blade grinding mechanism and the step back grinding mechanism are respectively connected to the rotating material transporting mechanism, the spiral groove opening mechanism is used to grind a spiral groove on the micro-drill on the rotating material transporting mechanism, the blade grinding mechanism is used to grind the blade of the micro-drill on the rotating material transporting mechanism, and the step back grinding mechanism is used to grind the back of the micro-drill on the rotating material transporting mechanism and grind a step groove on the micro-drill on the rotating material transporting mechanism.

[0005] As a further improvement of the present invention, the step-difference back grinding mechanism includes a back grinding transverse shift module, which is connected to the machine platform, a back grinding rotation module is provided on the output end of the back grinding rotation module, a back grinding lifting module is provided on the output end of the back grinding lifting module, a back grinding spindle is provided on the output end of the back grinding spindle, a step-difference grinding wheel and a back grinding wheel are provided on the output end of the back grinding spindle, and the back grinding transverse shift module is used to drive the back grinding spindle to move toward or in the direction of the rotating material transport mechanism.

[0006] As a further improvement of the present invention, a back grinding calibration mirror is provided on the back grinding lifting module, and the observation center of the back grinding calibration mirror is flush with the rotation center of the back grinding lifting module.

[0007] As a further improvement of the present invention, the back grinding rotation module comprises a rotating fixed plate and a back grinding rotation seat, the rotating fixed plate is connected to the output end of the back grinding transverse movement module, the back grinding lifting module is connected to the back grinding rotation seat, one end of the back grinding rotation seat is hinged to the rotating fixed plate, a rotating motor and a driven wheel are provided on the rotating fixed plate, a driving wheel is provided on the output end of the rotating motor, a transmission belt is sleeved on the driving wheel, one side surface of the back grinding rotation seat is an arc surface, the transmission belt abuts against the arc surface, and two ends of the transmission belt are respectively connected to the back grinding rotation seat, the driven wheel abuts against a side of the transmission belt away from the driving wheel, and the rotating motor can drive the driving wheel to slide on the transmission belt, thereby pulling the back grinding rotation seat to rotate and swing along the hinged end.

[0008] As a further improvement of the present invention, the lower end surface of the back grinding rotating seat is connected to the upper end surface of the rotating fixed plate, the back grinding rotating seat is provided with a first air inlet joint, the back grinding rotating seat is provided with a first air duct hole, the first air duct hole is respectively connected with the first air inlet joint and the lower end surface of the back grinding rotating seat, the first air inlet joint is used for an external air source, and then an air film is formed between the lower end surface of the back grinding rotating seat and the upper end surface of the rotating fixed plate.

[0009] As a further improvement of the present invention, the spiral groove opening mechanism includes a spiral transverse shift module, the spiral transverse shift module is connected to the machine platform, an angle adjustment seat is provided on the output end of the spiral transverse shift module, a spiral lifting fixed seat is provided on the angle adjustment seat, the spiral lifting fixed seat is hinged to the angle adjustment seat, and the spiral lifting fixed seat can rotate and swing along the hinge end as the axis, a spiral lifting fixed seat is provided on the spiral lifting module, a spiral spindle is provided on the output end of the spiral lifting module, and a spiral groove opening grinding wheel is provided on the output end of the spiral spindle.

[0010] As a further improvement of the present invention, the upper end surface of the angle adjustment seat is provided with two arc-shaped grooves with coinciding centers, and the spiral lifting and fixing seat is provided with limit screws at positions corresponding to the arc-shaped grooves, and the limit screws are slidably and limitably connected to the corresponding arc-shaped grooves.

[0011] As a further improvement of the utility model, a spiral calibration mirror is provided on the spiral lifting fixed seat, and the observation center of the spiral calibration mirror is flush with the rotation center of the spiral lifting fixed seat.

[0012] As a further improvement of the present utility model, the blade grinding mechanism includes a blade grinding advancement module, the blade grinding advancement module is connected to the machine, a blade grinding transverse movement module is provided on the output end of the blade grinding advancement module, a grinding wheel mounting seat is provided on the output end of the blade grinding transverse movement module, two blade grinding spindles are provided on the grinding wheel mounting seat, the blade grinding spindles are adjustable and limitedly connected to the grinding wheel mounting seat, and blade grinding wheels are respectively provided on the output ends of the blade grinding spindles.

[0013] As a further improvement of the present invention, two spindle limit seats are provided on the grinding wheel mounting seat, and the blade grinding wheel is respectively connected to a corresponding spindle limit seat, one end of the spindle limit seat is hinged to the grinding wheel mounting seat by a hinge screw, and the spindle limit seat can swing along the hinge screw as the axis, and an arc-shaped adjustment hole is provided on the grinding wheel mounting seat, and two adjustment screws are provided in the arc-shaped adjustment hole, and the adjustment screws are respectively connected to the corresponding spindle limit seats, and the adjustment screws can slide in the arc-shaped adjustment hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model discloses can simultaneously open spiral grooves, grind blades, grind backs and open step grooves on the micro drill, reduces the number of times the micro drill is clamped, and can greatly improve the processing efficiency and yield rate; and adopts a loading and unloading mechanism to realize automatic loading and unloading, and the whole process does not require human intervention, which reduces labor costs and can further improve the processing efficiency and yield rate. During the specific work, the micro-drill to be processed is placed on the loading mechanism, and the loading and unloading mechanism can be controlled to grab the micro-drill to be processed and placed on the rotating material transporting mechanism, and the operation of the first clamping mechanism can prevent the micro-drill from being skewed; then the rotating material transporting mechanism is controlled to work, and the micro-drill is transported to the corresponding positions of the spiral groove opening mechanism, the blade grinding mechanism, the step back grinding mechanism and the loading and unloading mechanism in sequence, a spiral groove is processed on the micro-drill by the spiral groove opening mechanism, and then the blade of the micro-drill is ground by the blade grinding mechanism, and then the step groove is ground on the micro-drill by the step back grinding mechanism, and then the back of the micro-drill is ground by the step back grinding mechanism, and then the processed micro-drill is taken out from the rotating material transporting mechanism by the loading and unloading robot, thereby completing a micro-drill processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the top view of the structure of an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a spiral groove opening mechanism in an embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the spiral transverse shift module in the embodiment of the utility model;

[0021] Figure 5 It is a structural schematic diagram of a blade grinding mechanism in an embodiment of the utility model;

[0022] Figure 6 It is a schematic structural diagram of the blade grinding mechanism from another perspective in the embodiment of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the step-difference back grinding mechanism in the embodiment of the utility model;

[0024] Figure 8This is a schematic diagram of the exploded structure of the back grinding rotation module in the embodiment of the utility model;

[0025] Fig. 9 This is a schematic diagram of the structure of the back grinding and lateral shifting module in the embodiment of the utility model;

[0026] Fig.10 This is a schematic diagram of the decomposed structure of the guide seat and the guide strip in the embodiment of the utility model;

[0027] Fig.11 It is a schematic diagram of the internal structure of the guide seat in the embodiment of the utility model. DETAILED DESCRIPTION

[0028] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order.

[0029] Reference to "embodiments" in the present invention means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive, independent, or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present invention may be combined with other embodiments.

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0031] like Figure 1-11As shown, a fully automatic micro-drill grinding machine includes a machine table 1, on which a rotating material transporting mechanism 2 is provided, and on the machine table 1, a loading and unloading mechanism 3, a spiral groove opening mechanism 4, a blade grinding mechanism 5 and a step-back grinding mechanism 6 are sequentially arranged along the moving direction of the rotating material transporting mechanism 2, and a first clamping mechanism 7 is provided at a position corresponding to the loading and unloading mechanism 3 on the machine table 1, and the loading and unloading mechanism 3 is used to place the micro-drill to be processed on the rotating material transporting mechanism 2, and to take out the processed micro-drill from the rotating material transporting mechanism 2, and the first clamping mechanism 7 is used to clamp the micro-drill on the rotating material transporting mechanism 2 that is aligned with the loading and unloading mechanism 3. During processing, the operator places the micro-drill to be processed on the loading and unloading mechanism 3, controls the loading and unloading mechanism 3 to grab the micro-drill to be processed and place it on the rotating material transport mechanism 2, and clamps the micro-drill on the rotating material transport mechanism 2 through the first clamping mechanism 7, so that the loading and unloading mechanism 3 can accurately and stably place the micro-drill on the rotating material transport mechanism 2. By setting the first clamping mechanism 7, the loading stability of the loading and unloading mechanism 3 can be improved.

[0032] The machine table 1 is provided with a second clamping mechanism 8 at the positions corresponding to the spiral groove opening mechanism 4, the blade grinding mechanism 5 and the step back grinding mechanism 6. The second clamping mechanism 8 is used to clamp the micro drill on the rotating material conveying mechanism 2 aligned therewith. The spiral groove opening mechanism 4, the blade grinding mechanism 5 and the step back grinding mechanism 6 are respectively connected to the rotating material conveying mechanism 2. The spiral groove opening mechanism 4 is used to grind a spiral groove on the micro drill on the rotating material conveying mechanism 2. The blade grinding mechanism 5 is used to grind the blade surface of the micro drill on the rotating material conveying mechanism 2. The step back grinding mechanism 6 is used to grind the blade back of the micro drill on the rotating material conveying mechanism 2 and grind a step groove on the micro drill on the rotating material conveying mechanism 2.

[0033] During the specific working process, the micro-drill can be sent to the processing positions of the spiral groove opening mechanism 4, the blade grinding mechanism 5 and the step-difference back grinding mechanism 6 in sequence through the rotating material transport mechanism 2, and then the spiral groove opening mechanism 4, the blade grinding mechanism 5 and the step-difference back grinding mechanism 6 are controlled respectively to perform corresponding processing on the micro-drill.

[0034] Specifically, when the rotating material transporting mechanism 2 transports the micro-drill to the corresponding position of the spiral groove opening mechanism 4, the micro-drill is clamped by the second clamping mechanism 8 aligned with the spiral groove opening mechanism 4 to prevent the micro-drill from shifting; the spiral groove opening mechanism 4 then controls the micro-drill on the rotating material transporting mechanism 2 to perform grinding processing to form a spiral groove on the micro-drill.

[0035] When the rotating material transporting mechanism 2 transports the micro-drill to the corresponding position of the blade grinding mechanism 5, the micro-drill is clamped by the second clamping mechanism 8 opposite to the blade grinding mechanism 5 to prevent the micro-drill from shifting; then the blade grinding mechanism 5 is controlled to grind the micro-drill on the rotating material transporting mechanism 2, and the blade surface of the micro-drill is ground to a preset shape.

[0036] When the rotating material transport mechanism 2 transports the micro-drill to the corresponding position of the step-difference back grinding mechanism 6, the micro-drill is clamped by the second clamping mechanism 8 opposite to the step-difference back grinding mechanism 6, which can prevent the micro-drill from shifting during the processing process; thereafter, the step-difference back grinding mechanism 6 is controlled to grind a step groove on the micro-drill, and then the back of the micro-drill is ground by the step-difference back grinding mechanism 6.

[0037] Finally, the rotary material transport mechanism 2 transports the processed micro-drill to the corresponding position of the loading and unloading mechanism 3, and then the loading and unloading manipulator takes out the processed micro-drill from the rotary material transport mechanism 2, completing a micro-drill processing process.

[0038] The fully automatic micro-drill grinding machine can simultaneously perform spiral groove cutting, blade grinding, back grinding and step groove cutting on the micro-drill, reducing the number of micro-drill clamping times and greatly improving the processing efficiency and yield rate; and adopts the loading and unloading mechanism 3 to realize automatic loading and unloading, and the whole process does not require human intervention, which reduces labor costs and can further improve the processing efficiency and yield rate.

[0039] In this embodiment, the loading and unloading mechanism 3 can adopt any existing loading and unloading robot, and its structure will not be described in detail in this article; the first clamping mechanism 7 and the second clamping mechanism 8 can also adopt existing clamping devices, and it is only necessary to ensure that they can clamp firmly, and their structure will not be described in detail in this article.

[0040] like Figure 3 , 4 As shown, the spiral groove mechanism 4 includes a spiral transverse shift module 41, which is fixedly mounted on the machine table 1, and an angle adjustment seat 42 is mounted on the output end of the spiral transverse shift module 41, and a spiral lifting fixed seat 43 is provided on the angle adjustment seat 42, and the spiral lifting fixed seat 43 is hinged to the angle adjustment seat 42, and the spiral lifting fixed seat 43 can rotate and swing along the hinge end as the axis, and a spiral lifting module 44 is provided on the spiral lifting fixed seat 43, and a spiral spindle 45 is provided on the output end of the spiral lifting module 44, and a spiral groove grinding wheel 46 is mounted on the output end of the spiral spindle 45, and by adjusting the spiral lifting fixed seat 43 to rotate and swing on the angle adjustment seat 42 along the hinge end, the spiral lifting module 44, the spiral spindle 45 and the spiral groove grinding wheel 46 can be driven to swing, thereby adjusting the direction of the spiral groove grinding wheel 46, so that it can be suitable for processing micro-drills with different spiral angles, thereby improving the versatility of processing.

[0041] During specific operation, after the rotating material transport mechanism 2 transports the micro-drill to the corresponding position of the spiral groove opening mechanism 4, the micro-drill on the rotating material transport mechanism 2 is clamped by the second clamping mechanism 8; then the spiral main shaft 45 is controlled to drive the spiral groove opening grinding wheel 46 to rotate, and then the spiral transverse movement module 41 is controlled to drive the spiral groove opening grinding wheel 46 to move in the direction close to the rotating material transport mechanism 2 until the spiral groove opening grinding wheel 46 is connected to the micro-drill. Then the spiral transverse movement module 41 and the spiral lifting module 44 are controlled to work respectively, driving the spiral groove opening grinding wheel 46 to rise and fall and move laterally, and the high-speed rotating spiral groove opening grinding wheel 46 will grind a spiral groove on the micro-drill to complete the spiral groove opening processing of the micro-drill. After the processing is completed, the spiral lifting module 44 and the spiral transverse movement module 41 are controlled to reset, and the spiral groove opening grinding wheel 46 is driven to reset to the initial position.

[0042] In order to improve the stability and accuracy of the rotation and swing of the spiral lifting fixed seat 43, in this embodiment, two arc-shaped grooves 421 with overlapping centers are provided on the upper end surface of the angle adjustment seat 42, and the corresponding positions of the spiral lifting fixed seat 43 and the arc-shaped grooves 421 are respectively provided with limit screws 431, and the limit screws 431 and the corresponding arc-shaped grooves 421 can be slidably limited. By using two limit screws 431 for fixing, the possibility of poor processing due to loose screws can be reduced, and the processing yield rate is improved; and, by using two concentrically arranged arc-shaped grooves 421 for guiding, the accuracy of adjusting the direction angle of the spiral groove grinding wheel 46 can be improved, thereby improving the processing quality and meeting the high-quality processing requirements.

[0043] Before processing, first adjust the direction of the spiral groove grinding wheel 46 to make it compatible with the micro drill to be processed. When making specific adjustments, first loosen the two limit screws 431 to push the spiral lifting fixed seat 43 to swing around the hinge end, thereby changing the direction of the spiral groove grinding wheel 46; in the process of pushing the spiral lifting fixed seat 43 to swing, the two limit screws 431 will be driven to slide in the corresponding arc grooves 421 respectively, and the two arc grooves 421 will simultaneously limit the spiral lifting fixed seat 43 to prevent shaking, thereby achieving the purpose of accurately adjusting the direction angle of the spiral groove grinding wheel 46; after the adjustment is completed, tighten the two limit screws 431 to connect and fix them to the corresponding arc grooves 421 respectively, and the two limit screws 431 can improve the connection stability between the spiral lifting fixed seat 43 and the angle adjustment seat 42.

[0044] In order to facilitate the adjustment of the orientation angle of the spiral groove grinding wheel 46, an indication scale 422 is provided on the upper end surface of the angle adjustment seat 42, and the side of the spiral lifting fixed seat 43 can be aligned with the indication scale 422. When adjusting the orientation angle of the spiral groove grinding wheel 46, after loosening the two limit screws 431, the spiral lifting fixed seat 43 can be pushed to swing on the angle adjustment seat 42, and the spiral lifting fixed seat 43 will drive the spiral groove grinding wheel 46 to swing together. By observing the alignment change of the side of the spiral lifting fixed seat 43 and the indication scale 422, the rotation and swing angle of the spiral groove grinding wheel 46 can be known, thereby achieving the purpose of quickly adjusting the spiral groove grinding wheel 46 to a suitable angle.

[0045] In this embodiment, the cross section of the arc-shaped slot 421 is in a "T" shape, and the shape of the end of the stop screw 431 extending from the spiral lifting fixing seat 43 is adapted to the shape of the arc-shaped slot 421. The arc-shaped slot 421 is set in a "T" shape so that the stop screw 431 can be fixedly engaged with the arc-shaped slot 421, thereby improving the stability of the structure. In other embodiments, the arc-shaped slot 421 can also be in other shapes, as long as the stop screw 431 can be slidably engaged with the arc-shaped slot 421; for example: a C-shaped slot, a dovetail slot, an I-shaped slot, etc.

[0046] A spiral calibration mirror 47 is provided on the spiral lifting fixed seat 43. The observation center of the spiral calibration mirror 47 is set flush with the rotation and swing center of the spiral lifting fixed seat 43. When the spiral lifting fixed seat 43 rotates and swings, the spiral calibration mirror 47 will also swing synchronously, so that the center positions of the two are fixed; the spiral calibration mirror 47 is used to calibrate the grinding surface center of the spiral groove grinding wheel 46 and the rotation center of the spiral lifting fixed seat 43 on the same straight line perpendicular to the horizontal plane, thereby ensuring that after the spiral lifting fixed seat 43 rotates and swings, the position relationship between the grinding surface of the spiral groove grinding wheel 46 and the rotation center of the spiral lifting fixed seat 43 will not change, thereby improving the processing accuracy. When adjusting the machine, the position of the spiral groove grinding wheel 46 is observed through the spiral calibration mirror 47, and the position angle of the spiral groove grinding wheel 46 on the spiral spindle 45 is adjusted until the grinding surface center of the spiral groove grinding wheel 46 coincides with the center of the spiral calibration mirror 47; at this time, the grinding surface center of the spiral groove grinding wheel 46 is flush with the rotation center of the spiral lifting fixed seat 43. It can be seen that by observing the spiral calibration mirror 47, the grinding surface center of the spiral groove grinding wheel 46 can be quickly calibrated to be flush with the rotation center of the spiral lifting fixed seat 43, so that both are simultaneously in a straight line perpendicular to the horizontal plane, thereby shortening the time for debugging the equipment and improving processing efficiency.

[0047] like Figure 4As shown, the spiral transverse movement module 41 includes a spiral transverse movement fixing seat 411, which is connected to the machine 1, and a spiral transverse movement motor 412 is provided on the spiral transverse movement fixing seat 411, and a spiral transverse movement screw rod 413 is provided on the output end of the spiral transverse movement motor 412, and a spiral transverse movement slider 414 is sleeved on the spiral transverse movement screw rod 413, and the angle adjustment seat 42 is connected to the spiral transverse movement slider 414. When working, the spiral transverse movement motor 412 is controlled to work, and the spiral transverse movement screw rod 413 is driven to rotate, thereby driving the spiral transverse movement slider 414 to move; the spiral transverse movement slider 414 will drive the angle adjustment seat 42, the spiral lifting fixing seat 43, the spiral lifting module 44, the spiral spindle 45 and the spiral groove grinding wheel 46 to move together, so as to achieve the purpose of driving the spiral groove grinding wheel 46 to move in the direction close to or away from the rotating material transport mechanism 2.

[0048] In order to limit and guide the movement direction of the spiral transverse sliding block 414, a spiral transverse sliding guide rail 415 is provided on the spiral transverse sliding fixed seat 411, and the spiral transverse sliding block 414 is slidably engaged with the spiral transverse sliding guide rail 415. When the spiral transverse sliding motor 412 drives the spiral transverse sliding block 414 to move, the spiral transverse sliding block 414 will slide on the spiral transverse sliding guide rail 415, and the movement direction of the spiral transverse sliding block 414 is limited and guided by the spiral transverse sliding guide rail 415, thereby improving the stability of the transmission and the accuracy of the control.

[0049] The spiral transverse movement module 41 also includes a tension spring 416. A mounting hole is provided on one end of the spiral transverse movement slider 414 away from the spiral transverse movement motor 412. One end of the tension spring 416 is connected to the spiral transverse movement fixing seat 411, and the other end extends into the mounting hole and is connected to the spiral transverse movement slider 414. In specific operation, when the spiral transverse movement motor 412 drives the spiral transverse movement slider 414 to move in a direction close to the rotating material transport mechanism 2, the movement of the spiral transverse movement slider 414 will compress the tension spring 416. By providing the tension spring 416 on the spiral transverse movement slider 414, the assembly gap between the spiral transverse movement slider 414, the spiral transverse movement screw rod 413 and the spiral transverse movement guide rail 415 can be eliminated, thereby improving the control accuracy and transmission accuracy.

[0050] The spiral lifting module 44 has the same structure as the spiral lateral movement module 41 , and its structure will not be described again in detail herein.

[0051] like Figure 5As shown, the blade grinding mechanism 5 includes a blade grinding forward module 51, which is connected to the machine table 1, and a blade grinding transverse movement module 52 is provided on the output end of the blade grinding forward module 51, and a grinding wheel mounting seat 53 is provided on the output end of the blade grinding transverse movement module 52, and two blade grinding spindles 54 are provided on the grinding wheel mounting seat 53, and the two blade grinding spindles 54 are respectively connected to the grinding wheel mounting seat 53 in an adjustable limit manner, and a blade grinding wheel 55 is respectively provided on the output end of each blade grinding spindle 54. During processing, the rotating material transport mechanism 2 will transport the micro-drill to be processed to the micro-drill opposite to the blade grinding wheel 55, and clamp the micro-drill through the second clamping mechanism 8; the blade grinding advance module 51 is used to drive the two blade grinding wheels 55 to move closer to or away from the micro-drill, and the blade grinding transverse movement module 52 is used to drive the two blade grinding wheels 55 to move transversely, so that the two blade grinding wheels 55 perform transverse grinding on the blade surface of the micro-drill.

[0052] During specific operation, after the rotating material conveying mechanism 2 conveys the micro-drill to be processed to the corresponding position of the blade grinding mechanism 5, the micro-drill is clamped by the corresponding second clamping mechanism 8; then the blade grinding spindle 54 is controlled to work, and the blade grinding wheel 55 is driven to rotate at high speed; then the blade grinding forward module 51 is controlled to work, and the blade grinding transverse movement module 52, the grinding wheel mounting seat 53, the blade grinding spindle 54 and the blade grinding wheel 55 are driven to move toward the direction close to the micro-drill until the blade grinding wheel 55 is connected with the micro-drill, and the blade surface on the micro-drill is ground, and then the grinding wheel mounting seat 53, the blade grinding spindle 54 and the blade grinding wheel 55 are driven to move transversely by the blade grinding transverse movement module 52, so that the blade grinding wheel 55 grinds the entire blade surface of the micro-drill. After the processing is completed, the blade grinding forward module 51 and the blade grinding transverse movement module 52 are respectively controlled to reset, and the blade grinding wheel 55 is driven to reset to the initial position.

[0053] The blade grinding mechanism 5 is equipped with two blade grinding wheels 55, so that it can grind two blade surfaces at the same time, reducing the size and production cost of the equipment and greatly improving the processing efficiency; and the two blade grinding spindles 54 are respectively connected to the grinding wheel mounting seat 53 in an adjustable manner, and the position of the blade grinding spindle 54 can be adjusted in time according to the needs of processing different micro-drills, thereby adjusting the direction of the blade grinding wheel 55, so that it can be suitable for different types of micro-drill processing needs, thereby improving the versatility of the equipment.

[0054] Specifically, two spindle limit seats 56 are provided on the grinding wheel mounting seat 53, and the blade grinding wheel 55 is respectively connected to a corresponding spindle limit seat 56. One end of the spindle limit seat 56 is hinged to the grinding wheel mounting seat 53 through a hinge screw 57, and the spindle limit seat 56 can swing along the hinge screw 57 as the axis. An arc-shaped adjustment hole 531 is provided on the grinding wheel mounting seat 53, and two adjustment screws 58 are provided in the arc-shaped adjustment hole 531. The adjustment screws 58 are respectively connected to the corresponding spindle limit seats 56, and the adjustment screws 58 can slide in the arc-shaped adjustment hole 531. Before processing, the orientations of the two blade grinding wheels 55 can be adjusted according to actual needs so that they are flush with the blade surface of the micro-drill to be processed; the operator can loosen the hinge screw 57 and the adjusting screw 58 respectively, thereby pushing the spindle limit seat 56 to rotate and swing along the hinge screw 57, and limit the rotation and swinging direction of the spindle limit seat 56 by sliding the adjusting screw 58 in the arc-shaped adjusting hole 531; when adjusted to the appropriate angle, tighten the hinge screw 57 and the adjusting screw 58 respectively, so that the spindle limit seat 56 is connected and fixed to the grinding wheel mounting seat 53.

[0055] In order to achieve accurate and rapid adjustment, angle notches 532 are respectively provided on the side wall of the grinding wheel mounting seat 53 at positions corresponding to the two spindle limit seats 56, and the side edges of the spindle limit seats 56 are aligned with the angle notches 532. When the spindle limit seats 56 are pushed to rotate and swing along the hinge screws 57, the orientation of the blade grinding wheel 55 can be understood in real time by observing the changes in the side edges of the spindle limit seats 56 and the angle notches 532, so there is no need for repeated trial and error, and the orientation of the blade grinding wheel 55 can be adjusted to a suitable position with only one adjustment, which greatly shortens the time for debugging the equipment and improves efficiency.

[0056] A dust cover 59 is installed on the spindle limit seat 56, and the dust cover 59 is connected to the spindle limit seat 56 through a hinge, and the dust cover 59 is sleeved on the periphery of the grinding wheel 55. The dust cover 59 can prevent the random splashing of debris during the grinding process, which can ensure the cleanliness of the processing site on the one hand, and reduce the problem of unstable transmission caused by the flying of processing debris into the motion module on the other hand.

[0057] A grinding wheel limiting rod 510 is provided at one end of the main shaft limiting seat 56 near the blade grinding wheel 55, and a grinding wheel limiting block 511 is provided at the end of the grinding wheel limiting rod 510. The grinding wheel limiting block 511 can be connected with the corresponding blade grinding wheel 55 to position the blade grinding wheel 55. By providing the grinding wheel limiting rod 510 on the main shaft limiting seat 56 and the grinding wheel limiting block 511 on the grinding wheel limiting rod 510, the position of the blade grinding wheel 55 on the blade grinding spindle 54 can be positioned, thereby preventing the blade grinding wheel 55 from falling out of the blade grinding spindle 54 during the machine adjustment or processing, ensuring the safety of processing and extending the service life of the blade grinding wheel 55.

[0058] The blade grinding forward module 51 adopts a linear motor structure, the linear motor is connected to the blade grinding fixed seat, and the blade grinding transverse module 52 is connected to the output end of the linear motor. When working, the linear motor drives the blade grinding transverse module 52, the grinding wheel mounting seat 53, the blade grinding spindle 54 and the blade grinding wheel 55 to move towards or away from the micro drill, thereby achieving feed and reset; the use of a linear motor can achieve precise control of movement, thereby precisely controlling the feed amount, improving the grinding accuracy, and meeting high-quality processing requirements.

[0059] The structure of the blade grinding transverse shift module 52 is the same as that of the spiral transverse shift module 41, and its structure will not be described again in detail herein.

[0060] like Figure 7-11 As shown, the step-difference back grinding mechanism 6 includes a back grinding transverse shift module 61, which is connected to the machine 1, and a back grinding rotation module 62 is provided on the output end of the back grinding transverse shift module 61, and a back grinding lifting module 63 is provided on the output end of the back grinding rotation module 62, and a back grinding main shaft 64 is provided on the output end of the back grinding lifting module 63, and a step-difference grinding wheel 65 and a back grinding wheel 66 are provided on the output end of the back grinding main shaft 64. The back grinding transverse shift module 61 is used to drive the back grinding main shaft 64 to move in the direction of approaching or rotating the material conveying mechanism 2; the back grinding rotation module 62 is used to drive the back grinding lifting module 63 and the back grinding main shaft 64 to rotate and swing, thereby driving the step-difference grinding wheel 65 and the back grinding wheel 66 to align with the micro-drill on the rotating material conveying mechanism 2 respectively, and the step-difference back grinding mechanism 6 can grind the back of the micro-drill, and is also used to grind a step-difference groove on the outer wall of the micro-drill.

[0061] During specific operation, after the rotating material transport mechanism 2 transports the micro-drill to the processing position of the step-difference back grinding mechanism 6, the second clamping mechanism 8 is controlled to clamp the micro-drill; then, by controlling the back grinding rotation module 62 to work, the back grinding lifting module 63 and the back grinding spindle 64 are driven to rotate and swing, so that the step-difference grinding wheel 65 is aligned with the micro-drill, and then the back grinding transverse movement module 61, the back grinding lifting module 63 and the back grinding spindle 64 are controlled to work respectively, so that the step-difference grinding wheel 65 is connected with the micro-drill to be processed, and a step-difference groove is processed on the micro-drill; the step-difference processing After completion, the back grinding transverse movement module 61 and the back grinding lifting module 63 are controlled to reset, and the step difference grinding wheel 65 is driven to leave the micro-drill; then the back grinding rotation module 62 is controlled to work, and the back grinding lifting module 63 and the back grinding spindle 64 are driven to rotate and swing, so that the back grinding wheel 66 is aligned with the micro-drill, and then the back grinding transverse movement module 61, the back grinding lifting module 63 and the back grinding spindle 64 are controlled to work respectively, so that the back grinding wheel 66 is connected with the micro-drill to be processed, and the back of the blade on the micro-drill is ground, thereby completing the step difference and back grinding processing of the micro-drill.

[0062] The step-difference back grinding mechanism 6 can drive the back grinding wheel 66 and the step-difference grinding wheel 65 to align with the product to be processed respectively by setting the back grinding rotation module 62, and then through the cooperation of the back grinding transverse movement module 61 and the back grinding lifting module 63, it can not only realize the back grinding of the micro-drill, but also grind the step-difference groove on the micro-drill; integrating the back grinding and step-difference groove opening into one device can reduce the circulation of micro-drills between equipment, thereby improving processing efficiency, and can also reduce the risk of product being clamped and improve the processing yield rate.

[0063] like Figure 8As shown, the back grinding rotation module 62 includes a rotation fixing plate 67 and a back grinding rotation seat 68. The rotation fixing plate 67 is connected to the output end of the back grinding transverse movement module 61, and the back grinding lifting module 63 is connected to the back grinding rotation seat 68. One end of the back grinding rotation seat 68 is hinged to the rotation fixing plate 67. The rotation fixing plate 67 is provided with a rotation motor 621 and a driven wheel 622. The output end of the rotation motor 621 is provided with a driving wheel 623. The driving wheel 623 is sleeved with a transmission belt 624. One side surface of the back grinding rotation seat 68 is an arc surface. The transmission belt 624 abuts against the arc surface, and the two ends of the transmission belt 624 are respectively connected to the back grinding rotation seat 68. The driven wheel 622 abuts against the side of the transmission belt 624 away from the driving wheel 623. The rotation motor 621 can drive the driving wheel 623 to slide on the transmission belt 624, thereby pulling the back grinding rotation seat 68 to rotate and swing along the hinged end. During specific operation, the driving wheel 623 can be driven to rotate by controlling the rotating motor 621; because the two ends of the transmission belt 624 are fixedly connected to the back grinding rotating seat 68, and the two sides of the transmission belt 624 are respectively in contact with the driving wheel 623 and the driven wheel 622, so during the rotation of the driving wheel 623, the transmission belt 624 will be pulled to move, thereby driving the back grinding rotating seat 68 to rotate and swing on the rotating fixed plate 67 with the hinged end as the axis, and the back grinding rotating seat 68 drives the back grinding lifting module 63 and the back grinding spindle 64 to move synchronously, so that the step difference grinding wheel 65 or the back grinding wheel 66 can be aligned with the micro drill, so as to achieve the purpose of switching between back grinding processing or step difference processing of the micro drill.

[0064] In this embodiment, there are two driven wheels 622, and the two driven wheels 622 are symmetrically distributed on both sides of the driving wheel 623, and are respectively rotatably limited and connected to the rotating fixed plate 67; the two driven wheels 622 respectively press against the side of the transmission belt 624 away from the driving wheel 623, so that the transmission belt 624 can always keep in contact with the arc surface on the grinding back rotating seat 68 during the transmission process, which can improve the stability of the transmission and achieve the purpose of accurately controlling the rotation and swing angle.

[0065] In order to facilitate the debugging of the equipment, a swing scale 671 is provided on the rotating fixed plate 67, and the side of the back grinding rotating seat 68 can be aligned with the swing scale 671. When debugging the equipment, after controlling the rotating motor 621 to work, by observing the numerical changes of the alignment between the side of the back grinding rotating seat 68 and the swing scale 671, the swing angle of the back grinding rotating seat 68 and the back grinding spindle 64 can be known, so as to judge whether the step difference grinding wheel 65 or the back grinding wheel 66 can be aligned with the micro drill; there is no need for repeated testing, and the machine can be adjusted in one step, which greatly saves the time of debugging the equipment and improves efficiency.

[0066] In this embodiment, the lower end surface of the back grinding rotating seat 68 is connected to the upper end surface of the rotating fixed plate 67, and a first air inlet connector 625 is provided on the back grinding rotating seat 68. A first air duct hole 681 is provided in the back grinding rotating seat 68. The first air duct hole 681 is respectively connected to the first air inlet connector 625 and the lower end surface of the back grinding rotating seat 68. The first air inlet connector 625 is used for an external air source, thereby forming an air film between the lower end surface of the back grinding rotating seat 68 and the upper end surface of the rotating fixed plate 67. When it is necessary to switch back grinding or step difference processing, the external air source will input high-pressure gas into the first air inlet connector 625, and then the gas will flow into the first air duct hole 681, and blow to the upper end surface of the rotating fixed plate 67 through the first air duct hole 681, thereby forming a layer of air film between the lower end surface of the back grinding rotating seat 68 and the upper end surface of the rotating fixed plate 67, so that the back grinding rotating seat 68 and the rotating fixed plate 67 do not need to be in direct contact, reducing the wear of the back grinding rotating seat 68 during the rotation and swinging process, thereby extending the service life; on the other hand, the formation of an air film between the lower end surface of the back grinding rotating seat 68 and the upper end surface of the rotating fixed plate 67 can also reduce the friction resistance between the back grinding rotating seat 68 and the rotating fixed plate 67, thereby improving the control accuracy, which is conducive to high-quality processing requirements.

[0067] In order to improve the connection stability between the back grinding rotating seat 68 and the rotating fixed plate 67 during back grinding or step processing, an electromagnet 626 is provided on the lower end surface of the back grinding rotating seat 68, and the rotating fixed plate 67 is made of magnetic metal, such as iron. The electromagnet 626 is detachably connected to the rotating fixed plate 67 by magnetic attraction. When it is necessary to switch back grinding or step processing, the rotating motor 621 is controlled to work, and the electromagnet 626 is controlled to be powered off at the same time, so that the high-pressure gas connected to the first airway hole 681 can form an air film between the lower end surface of the back grinding rotating seat 68 and the upper end surface of the rotating fixed plate 67, so that the back grinding rotating seat 68 and the rotating fixed plate 67 are not in direct contact. When back grinding or step difference processing is performed, the electromagnet 626 is controlled to be energized to generate magnetic force, so that the electromagnet 626 is magnetically connected and fixed to the rotating fixed plate 67, and the back grinding rotating seat 68 is connected and fixed to the rotating fixed plate 67, so that the back grinding transverse movement module 61 or the back grinding lifting module 63 can stably drive the back grinding wheel 66 and the step difference grinding wheel 65 to move, thereby improving the processing accuracy.

[0068] A back grinding calibration mirror 69 is provided on the back grinding rotating seat 68. The observation center of the back grinding calibration mirror 69 is set flush with the rotation and swinging center of the back grinding rotating seat 68. When the back grinding rotating seat 68 rotates and swings, the back grinding calibration mirror 69 will also swing synchronously, so that the center positions of the two are fixed; the back grinding calibration mirror 69 is used to calibrate the grinding surface center of the back grinding wheel 66 and the rotation center of the back grinding rotating seat 68 on the same straight line perpendicular to the horizontal plane, so as to ensure that after the back grinding rotating seat 68 rotates and swings, the position relationship between the grinding surface of the back grinding wheel 66 and the rotation center of the back grinding rotating seat 68 will not change, thereby improving the processing accuracy. When adjusting the machine, the position of the back grinding wheel 66 is observed through the back grinding calibration mirror 69, and the position angle of the back grinding wheel 66 on the back grinding spindle 64 is adjusted until the grinding surface center of the back grinding wheel 66 coincides with the center of the back grinding calibration mirror 69; at this time, the grinding surface center of the back grinding wheel 66 is flush with the rotation center of the back grinding rotating seat 68. It can be seen that by observing the back grinding calibration mirror 69, the grinding surface center of the back grinding wheel 66 can be quickly calibrated to be flush with the rotation center of the back grinding rotating seat 68, so that both are simultaneously in a straight line perpendicular to the horizontal plane, thereby shortening the time for debugging the equipment and improving processing efficiency.

[0069] like Fig. 9 As shown, the grinding back transverse movement module 61 includes a grinding back transverse movement fixed seat 611, a grinding back transverse movement motor 612 is provided on the grinding back transverse movement fixed seat 611, a grinding back transverse movement screw rod 613 is provided on the output end of the grinding back transverse movement motor 612, a grinding back transverse movement slider 614 is sleeved on the grinding back transverse movement screw rod 613, and a rotating fixed plate 67 is fixedly connected to the grinding back transverse movement slider 614. During specific operation, the grinding back transverse movement motor 612 is controlled to work to drive the grinding back transverse movement screw rod 613 to rotate, thereby driving the grinding back transverse movement slider 614 to slide on the grinding back transverse movement fixed seat 611, driving the rotating fixed plate 67, the grinding back rotating seat 68 and the grinding back lifting module 63 to move, thereby driving the grinding back spindle 64, the grinding back grinding wheel 66 and the step difference grinding wheel 65 to move in the direction close to or away from the micro drill.

[0070] In order to limit and guide the movement direction of the grinding back transverse movement slider 614, a guide bar 615 is provided on the grinding back transverse movement slider 614, and a guide seat 616 is provided on the grinding back transverse movement fixed seat 611 at a position corresponding to the guide bar 615, and the guide bar 615 is slidably engaged with the guide seat 616. When the grinding back transverse movement motor 612 is working, the grinding back transverse movement slider 614 will drive the guide bar 615 to slide on the guide seat 616, and the movement direction of the grinding back transverse movement slider 614 is limited and guided by the cooperation and limitation of the guide bar 615 and the guide seat 616, thereby improving the stability of the transmission.

[0071] In this embodiment, the guide strips 615 are symmetrically distributed on the left and right side walls of the grinding back transverse sliding block 614, and the number of guide seats 616 is the same as the number of guide strips 615, and the positions are arranged one by one. A V-shaped inclined surface is provided on the side of the guide seat 616 close to the guide strip 615, and a V-shaped groove is provided on the side of the guide strip 615 close to the guide seat 616 to match the V-shaped inclined surface. Through the cooperation of the V-shaped inclined surface and the V-shaped groove, the guide strip 615 and the guide seat 616 can be fixed by clamping, thereby improving the stability of the structure. In other embodiments, the matching surface of the guide seat 616 and the guide strip 615 can also be any other shape that can achieve clamping and limiting, such as: C-shaped, T-shaped, dovetail groove shape or I-shaped, etc.

[0072] like Fig.10 , 11 As shown, a plurality of porous ceramic blocks 617 and second air duct holes 618 are provided in the guide seat 616. The porous ceramic blocks 617 are stacked and distributed on the two side walls of the V-shaped slope. A second air pipe connector 619 is provided on the guide seat 616. The second air duct holes 618 are respectively connected to the second air inlet connector and the porous ceramic blocks 617. The porous ceramic blocks 617 extend out of the end face of the guide seat 616 close to the guide strip 615. The second air pipe connector 619 is used for connecting to an external air source, thereby forming an air film on the mating surface of the guide strip 615 and the guide seat 616. During operation, the second air pipe joint 619 is connected to an external high-pressure air source, and the high-pressure gas flows into the second air duct hole 618 through the second air pipe joint 619, and then flows into the porous ceramic block 617 through the second air duct hole 618, and finally blows toward the guide strip 615 through the porous ceramic block 617, thereby forming a layer of air film between the mating surfaces of the guide seat 616 and the guide strip 615, so that the guide seat 616 and the guide strip 615 will not be in direct contact, reducing the wear of the guide strip 615 during the sliding process and extending its service life; it can effectively avoid the problem of inaccurate guidance due to wear, so that it can meet high-precision and high-standard processing requirements.

[0073] The back grinding lifting module 63 has the same structure as the back grinding rotation and transverse movement module, and its structure will not be described in detail herein.

[0074] Working principle:

[0075] Before processing, the operator places the micro-drill to be processed on the loading and unloading mechanism 3; when working, the loading and unloading mechanism 3 is first controlled to grab the micro-drill and place it on the clamp on the rotating material transport mechanism 2, and the micro-drill on the rotating material transport mechanism 2 is clamped by the first clamping mechanism 7 to ensure that the micro-drill can be placed on the rotating material transport mechanism 2 stably, and the micro-drill is clamped and fixed by the clamp on the rotating material transport mechanism 2 to complete the loading process of the micro-drill.

[0076] Then, the rotary material transport mechanism 2 is controlled to work to transport the micro-drill to the corresponding position of the spiral groove opening mechanism 4; then, the second clamping mechanism 8 corresponding to the spiral groove opening mechanism 4 is controlled to clamp the micro-drill on the rotary material transport mechanism 2, and then the spiral groove opening mechanism 4 is controlled to work to perform spiral groove opening processing on the micro-drill on the rotary material transport mechanism 2.

[0077] After the spiral groove processing is completed, the rotating material transporting mechanism 2 is controlled to work to transport the micro-drill to the corresponding position of the blade grinding mechanism 5, and then the second clamping mechanism 8 corresponding to the blade grinding mechanism 5 is controlled to clamp the micro-drill on the rotating material transporting mechanism 2, and then the blade grinding mechanism 5 is controlled to work to grind the blade surface of the micro-drill on the rotating material transporting mechanism 2.

[0078] After the blade grinding process is completed, the rotary material transport mechanism 2 is controlled to work, and the micro drill is transported to the corresponding position of the step back grinding mechanism 6, and then the second clamping mechanism 8 corresponding to the step back grinding mechanism 6 is controlled to clamp the micro drill on the rotary material transport mechanism 2. After that, the step back grinding mechanism 6 is controlled to work, firstly the step groove is ground on the micro drill, and then the blade back of the micro drill is ground.

[0079] After the back grinding process is completed, the rotating material transport mechanism 2 is controlled to work, and the micro-drill is transported to the corresponding position of the loading and unloading mechanism 3. By controlling the loading and unloading mechanism 3 to work, the processed micro-drill is taken out from the rotating material transport mechanism 2; then the loading and unloading mechanism 3 is controlled to re-grasp the micro-drill to be processed and place it on the rotating material transport mechanism 2.

[0080] The above is a step-by-step description of the specific processing process. In the actual processing process, when the rotary material transport mechanism 2 works once, the loading and unloading mechanism 3 first takes out the processed micro-drill from the rotary material transport mechanism 2, and then places the new micro-drill on the rotary material transport mechanism 2; at the same time, the spiral groove opening mechanism 4, the blade grinding mechanism 5 and the step back grinding mechanism 6 will also process the micro-drill aligned with it on the rotary material transport mechanism 2. That is, the rotary material transport mechanism 2 works once to complete the processing of a micro-drill, realizing continuous and uninterrupted processing without waiting for other mechanisms to work, thereby greatly improving the processing efficiency.

[0081] The above-mentioned specific implementation mode is a preferred implementation mode of the present utility model, and is not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation mode. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. A fully automatic micro-drill grinding machine, characterized in that: The invention comprises a machine platform, a rotary material transport mechanism is arranged on the machine platform, a loading and unloading mechanism, a spiral groove opening mechanism, a blade grinding mechanism and a step back grinding mechanism are arranged on the machine platform in sequence along the movement direction of the rotary material transport mechanism, a first clamping mechanism is arranged at a position on the machine platform corresponding to the loading and unloading mechanism, the loading and unloading mechanism is used to place the micro-drill to be processed on the rotary material transport mechanism, and is used to take out the processed micro-drill from the rotary material transport mechanism, and the first clamping mechanism is used to clamp the micro-drill on the rotary material transport mechanism that is aligned with the loading and unloading mechanism; The machine platform is provided with second clamping mechanisms at positions corresponding to the spiral groove opening mechanism, the blade grinding mechanism and the step back grinding mechanism, respectively, and the second clamping mechanisms are used to clamp the micro drill on the rotating material transport mechanism aligned therewith; The spiral groove opening mechanism, the blade grinding mechanism and the step back grinding mechanism are respectively connected to the rotating material conveying mechanism, the spiral groove opening mechanism is used to grind a spiral groove on the micro drill on the rotating material conveying mechanism, the blade grinding mechanism is used to grind the blade of the micro drill on the rotating material conveying mechanism, and the step back grinding mechanism is used to grind the blade back of the micro drill on the rotating material conveying mechanism and grind a step groove on the micro drill on the rotating material conveying mechanism; The step-difference back grinding mechanism includes a back grinding transverse shift module, the back grinding transverse shift module is connected to the machine platform, a back grinding rotation module is provided on the output end of the back grinding rotation module, a back grinding lifting module is provided on the output end of the back grinding lifting module, a back grinding spindle is provided on the output end of the back grinding lifting module, a step-difference grinding wheel and a back grinding wheel are provided on the output end of the back grinding spindle, and the back grinding transverse shift module is used to drive the back grinding spindle to move toward or toward the direction of the rotating material transport mechanism; The back grinding rotation module comprises a rotating fixed plate and a back grinding rotation seat, the rotating fixed plate is connected to the output end of the back grinding transverse movement module, the back grinding lifting module is connected to the back grinding rotation seat, one end of the back grinding rotation seat is hinged to the rotating fixed plate, a rotating motor and a driven wheel are arranged on the rotating fixed plate, a driving wheel is arranged on the output end of the rotating motor, a transmission belt is sleeved on the driving wheel, one side surface of the back grinding rotation seat is an arc surface, the transmission belt abuts against the arc surface, and two ends of the transmission belt are respectively connected to the back grinding rotation seat, the driven wheel abuts against a side of the transmission belt away from the driving wheel, and the rotating motor can drive the driving wheel to slide on the transmission belt, thereby pulling the back grinding rotation seat to rotate and swing along the hinged end.

2. The fully automatic micro-drill grinding machine according to claim 1, characterized in that: The back grinding lifting module is provided with a back grinding calibration mirror, and the observation center of the back grinding calibration mirror is flush with the rotation center of the back grinding lifting module.

3. The fully automatic micro-drill grinding machine according to claim 1, characterized in that: The lower end surface of the back grinding rotating seat is connected to the upper end surface of the rotating fixed plate, and the back grinding rotating seat is provided with a first air inlet connector. The back grinding rotating seat is provided with a first air duct hole, and the first air duct hole is respectively connected with the first air inlet connector and the lower end surface of the back grinding rotating seat, and the first air inlet connector is used for an external air source.

4. The fully automatic micro-drill grinding machine according to any one of claims 1 to 3, characterized in that: The spiral groove opening mechanism includes a spiral transverse shifting module, which is connected to the machine platform, an angle adjustment seat is provided on the output end of the spiral transverse shifting module, a spiral lifting fixed seat is provided on the angle adjustment seat, the spiral lifting fixed seat is hinged to the angle adjustment seat, and the spiral lifting fixed seat can rotate and swing along the hinge end as the axis, a spiral lifting fixed seat is provided on the spiral lifting module, a spiral spindle is provided on the output end of the spiral lifting module, and a spiral groove opening grinding wheel is provided on the output end of the spiral spindle.

5. The fully automatic micro-drill grinding machine according to claim 4, characterized in that: The upper end surface of the angle adjustment seat is provided with two arc-shaped slots with overlapping centers, and the spiral lifting and fixing seat is provided with limit screws at positions corresponding to the arc-shaped slots, and the limit screws are slidably and limitably connected with the corresponding arc-shaped slots.

6. The fully automatic micro-drill grinding machine according to claim 4, characterized in that: The spiral lifting fixed seat is provided with a spiral calibration mirror, and the observation center of the spiral calibration mirror is flush with the rotation center of the spiral lifting fixed seat.

7. The fully automatic micro-drill grinding machine according to any one of claims 1 to 3, characterized in that: The blade grinding mechanism includes a blade grinding forward module, which is connected to the machine platform, a blade grinding transverse movement module is provided on the output end of the blade grinding forward module, a grinding wheel mounting seat is provided on the output end of the blade grinding transverse movement module, two blade grinding spindles are provided on the grinding wheel mounting seat, the blade grinding spindles are adjustable and limitedly connected to the grinding wheel mounting seat, and blade grinding wheels are respectively provided on the output ends of the blade grinding spindles.

8. The fully automatic micro-drill grinding machine according to claim 7, characterized in that: The grinding wheel mounting seat is provided with two spindle limit seats, and the blade grinding wheel is respectively connected to a corresponding spindle limit seat, one end of the spindle limit seat is hinged to the grinding wheel mounting seat through a hinge screw, and the spindle limit seat can swing along the hinge screw as the axis, and the grinding wheel mounting seat is provided with an arc-shaped adjustment hole, and two adjustment screws are arranged in the arc-shaped adjustment hole, and the adjustment screws are respectively connected to the corresponding spindle limit seats, and the adjustment screws can slide in the arc-shaped adjustment hole.

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