Micro drill bit stacking device

By designing a micro drill bit stacking device, the automated transfer and stacking of micro drill bits was realized, solving the problems of accuracy and efficiency of micro drill bits and improving production efficiency.

CN223509107UActive Publication Date: 2025-11-04DONGGUAN XINMING INTELLIGENT AUTOMATION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202423022971.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-11-04
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

In PCB board drilling, the precision and efficiency of micro drills are difficult to guarantee, and manual clamping operations are inefficient, resulting in low production efficiency.

Method used

Design a micro drill bit stacking device, including a base plate, a conveying hopper, a transfer plate, a stacking robot, and other components to realize the automated transfer and stacking operation of micro drill bits. The device achieves vertical placement of micro drill bits through material guide head guidance, reciprocating support mechanism support, push component flipping and stacking robot clamping.

Benefits of technology

It improves the efficiency of micro drill bit transfer and stacking, enhances the accuracy and production efficiency of micro drill bits, and reduces the need for manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a micro-drill bit stacking device, which belongs to a stacking device in the technical field of mechanical equipment, and adopts the technical scheme that the micro-drill bit stacking device comprises a base plate used for mounting parts; the conveying hopper is provided with a material guide head, and the material guide head is arranged at a discharge port of the conveying hopper; the transfer plate is horizontally arranged through a reciprocating supporting mechanism, the reciprocating supporting mechanism is arranged on the base plate, a pushing assembly and an overturning assembly are arranged on the two sides of the end of the reciprocating supporting mechanism correspondingly, and the stacking manipulator is arranged above the overturning assembly through a supporting frame. A tray output assembly is arranged on the output side of the stacking mechanical arm. According to the micro drill bit stacking device, the stacking operation of transferring a plurality of micro drill bits in batches is achieved, and the efficiency of transferring and stacking the micro drill bits is greatly improved.
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Description

Technical Field

[0001] This utility model belongs to the field of mechanical equipment technology, specifically relating to a micro drill bit material stacking device. Background Technology

[0002] Currently, in the process of PCB manufacturing, in addition to printing conductive films to form circuit layouts, conductive holes and insertion holes must be drilled at appropriate locations on the PCB to allow electronic components to be inserted and soldered onto the PCB. With the current industrial technology, the number of holes required for drilling on each unit of the board is extremely large, and the drilling depth varies. Therefore, computer-controlled automatic drilling is used. The precision of the micro drill bit directly affects the manufacturing quality of the PCB. Therefore, the industry conducts advanced testing and screening of micro drill bits to remove defective ones and reduce the processing defect rate during PCB production.

[0003] In PCB manufacturing, cutting tools often utilize round bar stock to create tool blanks, also known as split-end bar stock. This split-end bar stock consists of a large-diameter section and a small-diameter section. The large-diameter section forms the shank of the tool, while the small-diameter section is used for later machining of cutting edges with different specifications. Therefore, both the tool blank and the tool itself are split-end bar stock with large and small diameter sections. During tool processing, micro-drill tools need to be collected and organized using a pallet. Manual clamping operations result in extremely low production efficiency. Therefore, an integrated device with automated conveying and palletizing operations is required. Utility Model Content

[0004] The purpose of this utility model is to provide a micro drill bit stacking device. By setting a corresponding conveying hopper, transfer plate and stacking robot on the base plate, the device realizes the batch transfer and stacking operation of multiple micro drill bits. The multiple micro drill bits are finally placed vertically on the corresponding material tray output component for output, which greatly improves the efficiency of micro drill bit transfer and stacking operation.

[0005] The purpose of this utility model is achieved as follows: a micro drill bit stacking device, comprising:

[0006] Base plate, used for mounting components;

[0007] A conveying hopper, wherein the conveying hopper is provided with a material guide head, the material guide head being positioned at the discharge port of the conveying hopper;

[0008] A transfer plate, horizontally mounted via a reciprocating support mechanism, is mounted on a base plate. A pushing component and a tilting component are respectively mounted on both ends of the reciprocating support mechanism.

[0009] A material stacking robot is mounted above the flipping assembly via a support frame, and a material tray output assembly is provided on the output side of the material stacking robot.

[0010] Furthermore, the material guide head includes a main shaft rotatably mounted on the discharge port and a rotating head mounted on the main shaft. The rotating head is vertically mounted, and receiving grooves are evenly distributed on the side of the rotating head. The main shaft is driven by a cylinder drive assembly mounted on the conveying hopper.

[0011] Furthermore, the cylinder drive assembly includes a cylinder hinged to one side of the conveying hopper and a connecting rod disposed at the telescopic end of the cylinder. One end of the connecting rod is hinged to the telescopic end of the cylinder, and the other end of the connecting rod is fixedly perpendicular to the main shaft.

[0012] Furthermore, the reciprocating support mechanism includes a mounting frame, a support slide plate that slides along the length of the mounting frame, and a belt disposed in the mounting frame. The bottom of the support slide plate is fixedly connected to the belt. A motor for controlling the movement of the belt is disposed on one side of the end of the mounting frame. The transfer plate is placed above the support slide plate.

[0013] Furthermore, the pushing assembly includes a base plate frame, a slide rail mounted on the base plate frame, and a pushing plate fixed at the moving end of the slide rail. The pushing plate is reciprocated by a horizontally driven cylinder fixed horizontally on the base plate frame, and a pushing head is provided on the side of the pushing plate near the transfer plate.

[0014] Furthermore, the flipping assembly includes a flipping motor, a flipping spindle disposed at the rotating end of the flipping motor, and a receiving plate disposed on one side of the flipping spindle. The receiving plate is placed between the flipping spindle and the push plate. The flipping spindle is provided with a plurality of drill bit receiving holes in the radial direction. The plurality of drill bit receiving holes are oriented in the same direction and are evenly distributed in the length direction of the flipping spindle.

[0015] Furthermore, a lead screw assembly is provided on the support frame, and the material stacking robot is horizontally slidably mounted on the support frame. The lead screw assembly is used for the horizontal reciprocating drive of the material stacking robot.

[0016] Furthermore, the material stacking robot includes a vertically mounted mounting plate, a lifting cylinder vertically fixed on the mounting plate, and a gripping cylinder connected to the end of the lifting cylinder. The telescopic end of the gripping cylinder is provided with a pneumatic gripper assembly.

[0017] Furthermore, the pneumatic gripper assembly includes the gripping cylinder, a horizontally arranged guide rail, and two gripping units symmetrically arranged on the guide rail. The telescopic end of the gripping cylinder is abutted against the connection hole opened in the gripping unit through a wedge-shaped connector.

[0018] Furthermore, the tray output assembly includes a horizontal conveying base and multiple tray groups disposed at the conveying end of the horizontal conveying base. The multiple tray groups are arranged sequentially in the conveying direction of the horizontal conveying base, and the tray groups are provided with arrayed receiving holes.

[0019] The beneficial effects of this utility model are reflected in:

[0020] In this invention, by setting a corresponding conveying hopper on the base plate, the micro-drill bits discharged from the conveying hopper are guided by a material guide head and fall sequentially onto the transfer plate below for transfer. The transfer plate is horizontally set by a reciprocating support mechanism, which not only receives the sequentially falling micro-drill bits but also transfers multiple placed micro-drill bits. Then, under the action of the subsequent pushing and flipping components, the multiple micro-drill bits are vertically flipped and clamped for conveying. The set stacking robot clamps and transfers the vertically placed micro-drill bits after flipping. After clamping a row of micro-drill bits, they are placed in the material tray of the material tray output component for vertical stacking. This realizes the automated transfer and stacking of micro-drill bits, greatly improving the accuracy and efficiency of the stacking operation. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a schematic diagram of the overall structure of the material stacking device of this utility model;

[0023] Figure 2 This is a schematic diagram of the installation of the material guide head of this utility model on the conveying hopper;

[0024] Figure 3 This is a schematic diagram of the reciprocating support mechanism of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the driving component of this utility model;

[0026] Figure 5This is a schematic diagram of the flip-up component structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the material stacking robot and support frame structure of this utility model;

[0028] Figure 7 This is a schematic diagram of the material stacking robot of this utility model.

[0029] In the attached diagram, 1-base plate, 2-conveying hopper, 3-material guide head, 4-transfer plate, 5-reciprocating support mechanism, 6-pushing assembly, 7-tilting assembly, 8-material stacking robot, 9-support frame, 10-material tray output assembly, 11-discharge port, 12-main shaft, 13-rotating head, 14-accommodating tank, 15-cylinder drive assembly, 16-cylinder, 17-connecting rod, 18-mounting frame, 19-support slide plate, 20-belt, 21-motor, 22-base plate frame, 23-... - Base plate frame, 24- Push plate, 25- Horizontal drive cylinder, 26- Push head, 27- Tilting motor, 28- Tilting spindle, 29- Receiving plate, 30- Drill bit receiving hole, 31- Screw assembly, 32- Mounting plate, 33- Lifting cylinder, 34- Lifting cylinder, 35- Gripping cylinder, 36- Gripper assembly, 38- Guide rail, 39- Hand gripping unit, 40- Wedge connector, 41- Connection hole, 42- Horizontal conveying base, 43- Material tray assembly, 44- Receiving hole. Detailed Implementation

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0031] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0032] Reference Figures 1-7 A micro drill bit stacking device, comprising:

[0033] Base plate 1, used for mounting components;

[0034] The conveying hopper 2 is equipped with a material guide head 3, which is located at the discharge port 11 of the conveying hopper 2.

[0035] A transfer plate 4 is horizontally mounted via a reciprocating support mechanism 5, which is situated on the base plate 1. Pushing components 6 and tilting components 7 are respectively located on both ends of the reciprocating support mechanism 5.

[0036] The material stacking robot 8 is mounted above the flipping component 7 via a support frame 9, and a material tray output component 10 is provided on the output side of the material stacking robot 8.

[0037] like Figure 1 As shown, by setting a corresponding conveying hopper 2 on the base plate 1, the micro drill bits discharged from the conveying hopper 2 are guided by the material guide head 3 and fall sequentially onto the transfer plate 4 below for transfer operation. The transfer plate 4 is horizontally set by the reciprocating support mechanism 5, which not only receives the sequentially falling micro drill bits, but also realizes the transfer operation of multiple placed micro drill bits. Then, under the action of the subsequent pushing component 6 and flipping component 7, the multiple micro drill bits are vertically flipped and clamped for conveying. The set stacking robot 8 clamps and transfers the multiple vertically placed micro drill bits after flipping. After clamping a row of micro drill bits, they are placed in the material tray in the material tray output component 10 for vertical stacking. This realizes the automated transfer and stacking operation of micro drill bits, which greatly improves the accuracy and efficiency of micro drill bit stacking operation.

[0038] Preferably, the material guide head 3 includes a main shaft 12 rotatably mounted on the discharge port 11 and a rotating head 13 mounted on the main shaft 12. The rotating head 13 is vertically mounted, and receiving troughs 14 are evenly distributed on the side of the rotating head 13. The main shaft 12 is driven by a cylinder drive assembly 15 mounted on the conveying hopper 2.

[0039] Reference Figure 2 As shown, in order to ensure that the micro drill bits discharged from the discharge port 11 can be stably and sequentially dropped onto the transfer plate 4, a rotating head 13 is provided at the position of the discharge port 11. The rotating head 13 is set vertically, and receiving grooves 14 are evenly distributed on the side of the rotating head 13. Then, during the operation of the rotating head 13, the micro drill bits about to fall from the discharge port 11 can be caught, so that the micro drill bits can be buffered and sequentially placed as they fall onto the transfer plate 4. Thus, the micro drill bits in the conveying hopper 2 can be continuously and stably placed on the transfer plate 4.

[0040] Preferably, the cylinder drive assembly 15 includes a cylinder 16 hinged to one side of the conveying hopper 2 and a connecting rod 17 disposed at the telescopic end of the cylinder 16. One end of the connecting rod 17 is hinged to the telescopic end of the cylinder 16, and the other end of the connecting rod 17 is fixedly and perpendicularly to the main shaft 12.

[0041] Understandably, during the continuous feeding operation of the conveying hopper 2, in order to achieve stable and controllable rotation of the rotating head 13, the cylinder 16 is set to control the rotation of the main shaft 12, thereby enabling the rotating head 13 to continuously and stably discharge the micro drill bit at the discharge port 11. More specifically, one end of the cylinder 16 is hinged to one side of the conveying hopper 2. When the cylinder 16 extends or retracts, the extension end of the cylinder 16 drives the hinged connecting rod 17 to rotate, thereby causing the connecting rod 17 to drive the main shaft 12 to rotate, thus controlling the rotation of the rotating head 13.

[0042] Preferably, the reciprocating support mechanism 5 includes a mounting frame 18, a support slide plate 19 that is slidably disposed along the length of the mounting frame 18, and a belt 20 disposed in the mounting frame 18. The bottom of the support slide plate 19 is fixedly connected to the belt 20. A motor 21 for controlling the movement of the belt 20 is disposed on one side of the end of the mounting frame 18. The transfer plate 4 is placed above the support slide plate 19.

[0043] In a preferred embodiment, to ensure stable and orderly reception of the micro-drill bits discharged from the outlet 11, the transfer plate 4 needs to be horizontally positioned below the outlet 11 and have the freedom to reciprocate horizontally, thereby sequentially and orderly receiving and placing the micro-drill bits falling from the outlet 11. More specifically, a belt 20 is installed on the mounting frame 18, and the belt 20 is controlled by a motor 21 to achieve rotational transport control. The bottom of the support slide plate 19 is fixedly connected to the belt 20, thus enabling the control of the reciprocating motion of the transfer plate 4 on the mounting frame 18. For example, during the process of placing micro-drill bits on the transfer plate 4, the transfer plate 4 moves forward at a constant speed until all bits are placed and then transferred to the next transport stage. In the next transport stage, after the micro-drill bits are placed and transferred, the transfer plate 4 moves back and then receives the next micro-drill bits. Thus, the transfer plate 4 has the function of reciprocating motion on the horizontal plane.

[0044] Preferably, the pushing assembly 6 includes a base plate frame 22, a slide rail 23 disposed on the base plate frame 22, and a pushing plate 24 fixed at the moving end of the slide rail 23. The pushing plate 24 is reciprocated by a horizontally driven cylinder 25 that is horizontally fixed on the base plate frame 22. A pushing head 26 is disposed on the side of the pushing plate 24 near the transfer plate 4.

[0045] Combination Figure 1 and Figure 4By setting the pushing component 6, the micro drill bits placed on the transfer plate 4 are transferred by applying force simultaneously. More specifically, the pushing component 6 is provided with a pushing plate 24 that can slide on a horizontal plane. The pushing plate 24 is reciprocated by a horizontal drive cylinder 25 on the base plate frame 22. Furthermore, a pushing head 26 is provided on one side of the transfer plate 4. The pushing head 26 is provided with corresponding holes to facilitate pushing the horizontally placed micro drill bits.

[0046] Preferably, the flipping assembly 7 includes a flipping motor 27, a flipping spindle 28 disposed at the rotating end of the flipping motor 27, and a receiving plate 29 disposed on one side of the flipping spindle 28. The receiving plate 29 is placed between the flipping spindle 28 and the push plate 24. The flipping spindle 28 is provided with a plurality of drill bit receiving holes 30 in the radial direction. The plurality of drill bit receiving holes 30 are oriented in the same direction and are evenly distributed in the length direction of the flipping spindle 28.

[0047] Combination Figure 1 , Figure 4 and Figure 5 By setting the flipping component 7, multiple micro drill bits pushed by the pushing component 6 can be aligned, fixed, and flipped into a vertical state. The specific operation is as follows: after the multiple micro drill bits are pushed horizontally, they are placed in the corresponding drill bit receiving holes 30 in the flipping spindle 28. Under the rotation control of the flipping motor 27, the flipping spindle 28 is flipped with the clamped micro drill bits and placed in a vertical state.

[0048] Preferably, a lead screw assembly 31 is provided on the support frame 9, and the material stacking robot 8 is horizontally slidably disposed on the support frame 9. The lead screw assembly 31 is used for the horizontal reciprocating drive of the material stacking robot 8.

[0049] As a preferred embodiment, in order to move the material stacking robot 8 in the horizontal direction, the material stacking robot 8 is slidably connected to the support frame 9 via a lead screw assembly 31, thereby enabling the material stacking robot 8 to reciprocate in the horizontal direction. It should be emphasized that the lead screw assembly 31 in this application is a conventional lead screw assembly, as long as it can realize the reciprocating control of the material stacking robot 8 to slide horizontally on the support frame 9.

[0050] Preferably, the material stacking robot 8 includes a vertically arranged mounting plate 32, a lifting cylinder 33 vertically fixed on the mounting plate 32, and a gripping cylinder 35 connected to the end of the lifting cylinder 33. The telescopic end of the gripping cylinder 35 is provided with a pneumatic gripper assembly 36.

[0051] In order to enable the material stacking robot 8 to grasp and transfer a row of vertically arranged micro drill bits, the material stacking robot 8 also has vertical lifting control and gripping operation control. Specifically, the material stacking robot 8 is lifted and lowered by the lifting cylinder 33 on the mounting plate 32, and the gripping cylinder 35 controls the clamping and releasing of the gripper assembly 36 by extension and retraction control.

[0052] Preferably, the pneumatic gripper assembly 36 includes a gripping cylinder 35, a horizontally arranged guide rail 38, and two gripping units 39 symmetrically arranged on the guide rail 38. The telescopic end of the gripping cylinder 35 is abutted against the connecting hole 41 opened in the gripping unit 39 through a wedge-shaped connector 40.

[0053] Understandably, a gripping cylinder 35 is provided in the pneumatic gripper assembly 36. The extension and retraction of the gripping cylinder 35 exerts a vertical lifting force on the wedge-shaped connector 40, causing the wedge-shaped connector 40 to drive the two gripping units 39 to move in opposite directions along the trajectory of the guide rail 38, thereby realizing the control of the gripping operation.

[0054] Preferably, the tray output assembly 10 includes a horizontal conveying base 42 and a plurality of tray groups 43 disposed at the conveying end of the horizontal conveying base 42. The plurality of tray groups 43 are arranged sequentially in the conveying direction of the horizontal conveying base 42, and the tray groups 43 are provided with arrayed receiving holes 44.

[0055] During the transfer operation of clamping multiple vertical micro drill bits, the stacking robot 8 receives and vertically places the vertically arranged micro drill bits through the material tray group 43. The receiving holes 44 arrayed on the material tray group 43 realize the positioning of the vertically transferred micro drill bits.

[0056] The working principle and process of this utility model:

[0057] The micro-drill bit stacking device provided by this utility model, in use, has a corresponding conveying hopper 2 set on the base plate 1, and the micro-drill bits discharged from the conveying hopper 2 are guided out by the material guide head 3 and fall sequentially onto the transfer plate 4 below for transfer operation. The transfer plate 4 is horizontally set by the reciprocating support mechanism 5, which not only receives the sequentially falling micro-drill bits, but also realizes the transfer operation of multiple placed micro-drill bits. Then, under the action of the subsequent pushing component 6 and flipping component 7, the multiple micro-drill bits are vertically flipped and clamped for conveying. The stacking robot 8 is set up to clamp and transfer the multiple vertically placed micro-drill bits after flipping. After a row of micro-drill bits are uniformly clamped, they are placed in the material tray in the material tray output component 10 for vertical stacking, thereby realizing the automated transfer and stacking operation of micro-drill bits, which greatly improves the accuracy and efficiency of micro-drill bit stacking operation.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A micro-drill bit stacking device, characterized in that, include: Base plate (1), used for mounting components; A conveying hopper (2) is provided with a material guide head (3), which is located at the discharge port (11) of the conveying hopper (2). A transfer plate (4) is horizontally arranged via a reciprocating support mechanism (5), which is mounted on the base plate (1). A pushing assembly (6) and a tilting assembly (7) are respectively provided on both sides of the reciprocating support mechanism (5). A material stacking robot (8) is mounted above the flipping assembly (7) via a support frame (9), and a material tray output assembly (10) is provided on the output side of the material stacking robot (8).

2. The micro-drill bit stacking device according to claim 1, characterized in that, The material guide head (3) includes a main shaft (12) rotatably mounted on the discharge port (11) and a rotating head (13) mounted on the main shaft (12). The rotating head (13) is vertically mounted, and receiving troughs (14) are evenly distributed on the side of the rotating head (13). The main shaft (12) is driven by a cylinder drive assembly (15) mounted on the conveying hopper (2).

3. The micro-drill bit stacking device according to claim 2, characterized in that, The cylinder drive assembly (15) includes a cylinder (16) hinged to one side of the conveying hopper (2) and a connecting rod (17) disposed at the telescopic end of the cylinder (16). One end of the connecting rod (17) is hinged to the telescopic end of the cylinder (16), and the other end of the connecting rod (17) is fixedly perpendicular to the main shaft (12).

4. The micro-drill bit stacking device according to claim 1, characterized in that, The reciprocating support mechanism (5) includes a mounting frame (18), a support slide plate (19) that slides along the length of the mounting frame (18), and a belt (20) disposed in the mounting frame (18). The bottom of the support slide plate (19) is fixedly connected to the belt (20). A motor (21) for controlling the movement of the belt (20) is provided on one side of the end of the mounting frame (18). The transfer plate (4) is placed above the support slide plate (19).

5. The micro-drill bit stacking device according to claim 4, characterized in that, The pushing assembly (6) includes a base plate frame (22), a slide rail (23) mounted on the base plate frame (22), and a pushing plate (24) fixed at the moving end of the slide rail (23). The pushing plate (24) is reciprocated by a horizontally driven cylinder (25) horizontally fixed on the base plate frame (22). A pushing head (26) is provided on the side of the pushing plate (24) near the transfer plate (4).

6. The micro-drill bit stacking device according to claim 5, characterized in that, The flipping assembly (7) includes a flipping motor (27), a flipping spindle (28) disposed at the rotating end of the flipping motor (27), and a receiving plate (29) disposed on one side of the flipping spindle (28). The receiving plate (29) is placed between the flipping spindle (28) and the push plate (24). The flipping spindle (28) is provided with a plurality of drill bit receiving holes (30) in the radial direction. The plurality of drill bit receiving holes (30) are oriented in the same direction and are evenly distributed in the length direction of the flipping spindle (28).

7. The micro-drill bit stacking device according to claim 1, characterized in that, A lead screw assembly (31) is provided on the support frame (9), and the material stacking robot (8) is horizontally slidably disposed on the support frame (9). The lead screw assembly (31) is used for the horizontal reciprocating drive of the material stacking robot (8).

8. The micro-drill bit stacking device according to claim 7, characterized in that, The material stacking robot (8) includes a vertically mounted mounting plate (32), a lifting cylinder (33) vertically fixed on the mounting plate (32), and a gripping cylinder (35) connected to the end of the lifting cylinder (33). The telescopic end of the gripping cylinder (35) is provided with a gripper assembly (36).

9. The micro-drill bit stacking device according to claim 8, characterized in that, The pneumatic gripper assembly (36) includes the gripping cylinder (35), a horizontally arranged guide rail (38), and two gripping units (39) symmetrically arranged on the guide rail (38). The telescopic end of the gripping cylinder (35) is abutted against the connecting hole (41) opened in the gripping unit (39) through a wedge-shaped connector (40).

10. The micro-drill bit stacking device according to claim 9, characterized in that, The tray output assembly (10) includes a horizontal conveying base (42) and a plurality of tray groups (43) disposed at the conveying end of the horizontal conveying base (42). The plurality of tray groups (43) are arranged sequentially in the conveying direction of the horizontal conveying base (42), and the tray groups (43) are provided with arrayed receiving holes (44).