Automatic tool changer and drilling machine

Abstract

This application relates to an automatic tool changer and a drilling machine. The automatic tool changer includes: a fixed component, multiple lifting components, and multiple support components. During operation, the drilling machine has multiple lifting components connected to the base. These lifting components support the raising or lowering of multiple support components, thereby raising or lowering multiple cutter heads on the support components. If a cutter head needs to be raised to change the tool of the drilling assembly, the corresponding lifting component can be used to raise the support component. Compared to the prior art, the multiple moving parts in the multiple guide components support the cutter head, ensuring the stability of the cutter head support, raising, and lowering. The guide holes limit the moving parts, allowing them to move relative to the fixed part in a second direction, thereby preventing the cutter head from shifting due to shaking during movement and ensuring stable tool changing of the drilling assembly.

Description

Technical Field

[0001] This application relates to the technical field of tool changing devices for drilling machines, and in particular to automatic tool changing devices and drilling machines. Background Technology

[0002] In the printed circuit board (PCB) industry, a printed circuit board has holes of various sizes, and drilling machines are used to process these holes. To accommodate the need to process holes of various sizes on printed circuit boards, drilling machines are typically equipped with a large number of drill bits, sometimes as many as several hundred, which may be categorized and stored in multiple cutter heads.

[0003] During the processing, the cutting head of the printed circuit board drilling machine is usually replaced manually. However, manual replacement of the cutting head is prone to problems such as replacing the wrong cutting head, difficulty in managing cutting head information, and low efficiency in replacing the cutting head.

[0004] In related technologies, the tool changing device has a conveyor module that supports multiple tool discs. The height of the conveyor module is raised or lowered by a lifting component, thereby adjusting the multiple tool discs to the height to be replaced. The multiple tool discs are moved by the conveyor module so that the tool disc to be used is moved to the position to be replaced.

[0005] In this tool changing device, the lifting module can only lift multiple tool discs on the conveying module at the same time. The conveying module can drive the tool discs to move along the arrangement direction of multiple tool discs. It also requires a connection part that connects to both the conveying module and the lifting module. This results in a complex non-stop tool changing structure that cannot lift the required tool discs specifically. Furthermore, the tool discs are prone to displacement during the movement of the tool discs driven by the conveying module. Utility Model Content

[0006] Therefore, it is necessary to provide an automatic tool changer and drilling machine to address the problems of complex non-stop tool changing structures and easy deviation of the tool disc during the movement of the tool disc driven by the transmission module in existing drilling machines.

[0007] An automatic tool changer includes:

[0008] A fixing component, one end of which is connected to the base of the drilling machine;

[0009] Multiple lifting components are disposed at one end of the fixed component away from the base. The multiple lifting components are arranged along a first direction. Each lifting component includes multiple guide components. Each guide component includes a fixed part and a movable part. The fixed part is disposed at one end of the fixed component away from the base. The movable part moves and cooperates with the fixed part along a second direction. The fixed part has a guide hole along the second direction. The movable part is a guide rod. The guide rod passes through the guide hole and moves relative to the fixed part along the second direction.

[0010] Multiple support components are connected one-to-one with multiple lifting components, and the lifting components are used to raise or lower the corresponding support components;

[0011] The first direction is the arrangement direction of the multiple drilling components of the drilling machine, and the second direction is a vertical direction and perpendicular to the first direction.

[0012] During operation, the aforementioned automatic tool changer utilizes multiple lifting components connected to the base. Each fixed component corresponds to a drilling component, and the lifting components support multiple tool discs to hold the drilling cutters corresponding to those tool discs. These lifting components, in turn, support multiple support components, raising or lowering them, thereby causing the tool discs on those support components to rise or fall. When a tool disc needs replacement, lifting it is achieved simply by raising the corresponding lifting component, which in turn lifts the support component, bringing the tool disc closer to the drilling component. After the tool change is complete, the lifting components lower the support components, moving the corresponding tool disc away from the drilling component. Once the tool disc is reset, the drilling component continues drilling the printed circuit board.

[0013] Compared to existing technologies, the automatic tool changer of this application embodiment can selectively raise or lower the required tool head, and has a relatively simple structure. It does not require a conveyor module to drive the tool head to move. The tool head is supported by multiple moving parts in multiple guide components, thereby ensuring the stability of tool head support, raising and lowering. The moving parts are limited by guide holes, so that the moving parts can move relative to the fixed part in the second direction, thereby preventing tool head deviation caused by shaking during tool head movement and ensuring stable tool changing of the drilling assembly.

[0014] In one embodiment, the lifting assembly further includes a driving unit connected to the fixing assembly for driving the guide rod to move relative to the fixing unit in the second direction.

[0015] In one embodiment, the support component is provided with a positioning groove for positioning the cutter head.

[0016] In one embodiment, the automatic tool changer further includes a connecting portion;

[0017] The connection is located at the end of the fixing component away from the base, and the connection part is provided with a plurality of through holes that correspond one-to-one with the guide holes along the second direction;

[0018] The fixing part is connected to the connecting part, and the guide hole and the corresponding through hole are coaxially arranged;

[0019] The guide rod is sequentially inserted through the through hole and the guide hole, and the driving part is connected to the connecting part and is used to drive the guide rod to move along the second direction.

[0020] In one embodiment, the support assembly includes a plurality of rods and connectors;

[0021] One end of the connector near the base is connected to a plurality of the support rods, and the support rods are provided with positioning grooves;

[0022] The end of the movable part that is away from the base along the second direction is connected to the connector.

[0023] In one embodiment, the automatic tool changer includes multiple sets of fastening components, each set of fastening components including multiple fasteners;

[0024] The connector has multiple connection holes along the second direction, and the multiple fasteners, the multiple connection holes, and the multiple moving parts correspond one-to-one. The fasteners pass through the connection holes and are connected to the moving parts.

[0025] In one embodiment, the fastener includes a head and a rod, the connecting hole includes a fastening hole and a fastening groove arranged coaxially, the fastener has a fastening hole along a second direction, the fastener has a fastening groove on one side of the fastener away from the moving part, the fastening groove communicates with the fastening hole, the rod passes through the fastening hole and connects to the moving part, and the head is located in the fastening groove.

[0026] In one embodiment, the automatic tool changer further includes a sensor, and the tool disc is provided with a protrusion adapted to the positioning groove on the side near the support assembly. The sensor is disposed on the bottom wall of the positioning groove to sense the distance to the protrusion.

[0027] In one embodiment, the guide assembly includes a linear bearing disposed within the guide hole, and the guide rod passes through the linear bearing.

[0028] One embodiment of this application also provides a drilling machine, which includes: a base, a drilling assembly, a cutter head, and a plurality of the aforementioned automatic tool changing devices;

[0029] One end of the fixing component is connected to the base of the drilling machine, the support component is used to support the cutter head, and the drilling component is used to drill holes in the circuit board.

[0030] During operation, the aforementioned drilling machine features multiple lifting components connected to the base. These lifting components support the raising and lowering of multiple support components, thereby raising and lowering multiple cutter heads on the support components. When it is necessary to change the cutting tool of the drilling assembly and raise a particular cutter head, the corresponding lifting component can be used to raise the support component. Compared to existing technologies, this method can selectively raise or lower the required cutter head, and the structure is relatively simple. It does not require a transmission module to move the cutter head. Multiple moving parts in the multiple guide components support the cutter head, ensuring the stability of the cutter head support, raising, and lowering. The moving parts are limited by guide holes, allowing them to move relative to the fixed part in the second direction. This prevents the cutter head from shifting due to shaking during movement and ensures stable tool changing of the drilling assembly. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a drilling machine according to one embodiment.

[0032] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0033] Figure 3 for Figure 2 A schematic diagram of the lifting assembly of the automatic tool changer in the diagram.

[0034] Figure 4 for Figure 3 A schematic diagram of the structure of the automatic tool changer lifting assembly as it descends.

[0035] Figure 5 for Figure 4 A cross-sectional view of the automatic tool changer from one perspective.

[0036] Figure 6 for Figure 4 A cross-sectional view of the automatic tool changer from another perspective.

[0037] Explanation of icon numbers:

[0038] 10-Automatic tool changer;

[0039] 100 - Fixing component; 110 - Fixing strip; 110a - First positioning hole; 120 - Fixing block;

[0040] 200 - Lifting assembly; 210 - Drive unit; 220 - Guide assembly; 221 - Fixing unit; 221a - Guide hole; 221b - Second positioning hole; 222 - Moving part; 230 - Linear bearing; 240 - Guide rod;

[0041] 300 - Support assembly; 310 - Support rod; 310a - Positioning groove; 320 - Connector; 321 - Connecting hole; 321a - Fastening hole; 321b - Fastening groove;

[0042] 400 - Connecting part; 400a - Through hole;

[0043] 500 - Fastener; 510 - Head; 520 - Rod;

[0044] 600-Positioning Pin;

[0045] 700-Dust cover;

[0046] 20-Drilling machine; 21-Base; 22-Drilling assembly; 23-Cutter head;

[0047] OX - First direction; OY - Second direction. Detailed Implementation

[0048] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0049] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0054] See Figure 1 , Figure 1 This is a schematic diagram of a drilling machine according to one embodiment. Combined with... Figure 2 , Figure 2The diagram shows an automatic tool changer 10 disposed on the base 21 of a drilling machine 20 according to an embodiment of the present application. The automatic tool changer 10 provided in an embodiment of the present application includes: a fixing component 100, a plurality of lifting components 200 and a plurality of supporting components 300.

[0055] In the aforementioned automatic tool changer 10, one end of the fixing component 100 is connected to the base 21 of the drilling machine 20. Multiple lifting components 200 are disposed on the fixing component 100. Specifically, one end of the fixing component 100 is connected to the base 21, and the other end of the fixing component 100, i.e., the end of the fixing component 100 facing away from the base 21, is connected to the lifting components 200. The multiple lifting components 200 are arranged along a first direction OX. Each lifting component 200 includes multiple guide components 220. Each guide component 220 includes a fixing part 221 and a moving part 222. The fixing part 221 is disposed at the end of the fixing component 100 facing away from the base 21, and the moving part 222 moves and engages with the fixing part 221 along a second direction OY. The second direction OY is vertical and perpendicular to the first direction OX. The fixing part 221 has a guide hole 221a along the second direction OY, and the moving part 222 is a guide rod 240, which passes through the guide hole 221a and moves relative to the fixing part 221 along the second direction OY. The driving part 210 is connected to the fixing assembly 100 and is used to drive the guide rod 240 to move relative to the fixing part 221 along the second direction OY.

[0056] The first direction OX is the arrangement direction of the multiple drilling components 22 of the drilling machine 20. Multiple support components 300 are connected to multiple lifting components 200 in a one-to-one correspondence, and the lifting components 200 are used to raise or lower the corresponding support component 300.

[0057] See Figure 3 and Figure 4During operation, the aforementioned automatic tool changer 10 is equipped with multiple lifting components 200 on the fixed component 100 connected to the base 21. Each fixed component 100 corresponds to a drilling component 22. The multiple lifting components 200 support multiple tool discs 23 for holding the drilling tool corresponding to the drilling component 22. The moving part 222 is connected to the support component 300. The moving part 222 in the lifting component 200 moves relative to the fixed part 221 along the second direction OY, driving the corresponding support component 300 to rise or fall, thereby driving the multiple tool discs 23 on the multiple support components 300 to rise or fall. If it is necessary to replace the drill bit in a certain cutter head 23, the process of raising a certain cutter head 23 only requires the corresponding lifting component 200 to drive the support component 300 to rise, which can complete the action of lifting the cutter head 23 to the vicinity of the drilling component 22. After the drilling component 22 has completed the replacement of the drill bit, the lifting component 200 drives the support component 300 to descend, so that the corresponding cutter head 23 is away from the drilling component 22. After the cutter head 23 is reset, the drilling component 22 continues to drill holes in the printed circuit board.

[0058] Compared to the prior art, the automatic tool changer 10 of this application embodiment can selectively raise or lower the required tool disc 23, and has a relatively simple structure. It does not require a conveyor module to drive the tool disc 23 to move. The tool disc 23 is supported by multiple moving parts 222 in multiple guide components 220, thereby ensuring the stability of the tool disc 23 during support, raising and lowering. The moving parts 222 are limited by the guide holes 221a, so that the moving parts 222 can move relative to the fixed part 221 in the second direction OY, thereby preventing the tool disc 23 from deviating due to shaking during the movement of the tool disc 23, and ensuring stable tool changing of the drilling assembly 22.

[0059] In one embodiment, the lifting assembly 200 includes a drive unit 210. The drive unit 210 is used to drive the support assembly 300 to move relative to the fixed part 221 along the second direction OY. In this embodiment, by driving the moving part 222 to move relative to the fixed part 221 along the second direction OY, the drive unit 210 can ensure that the cutter head 23 can move stably relative to the base 21 along the second direction OY.

[0060] In one embodiment, a lifting assembly 200 comprises three guide assemblies 220. Each guide assembly 220 includes two fixed portions 221 and two movable portions 222.

[0061] See Figure 3 and Figure 4 In one embodiment, preferably, the guide rod 240 is a round rod and the guide hole 221a is a round hole, so that the guide rod 240 can move more smoothly in the guide hole 221a.

[0062] See Figure 3In one embodiment, the support component 300 is provided with a positioning groove 310a for positioning the cutter head 23. In this embodiment, the positioning groove 310a is used to position the cutter head 23, thereby preventing the cutter head 23 from shifting during movement and ensuring the stability of tool changing.

[0063] See Figure 3 and Figure 4 In one embodiment, the automatic tool changer 10 further includes a connecting portion 400. This connecting portion 400 is located at the end of the fixing assembly 100 opposite to the base 21. The connecting portion 400 has multiple through holes 400a corresponding to guide holes 221a along the second direction OY. The fixing portion 221 is connected to the connecting portion 400, and the guide holes 221a and their corresponding through holes 400a are coaxially arranged. A guide rod 240 passes sequentially through the through holes 400a and the guide holes 221a. A driving portion 210 is connected to the connecting portion 400 and is used to drive the guide rod 240 to move along the second direction OY.

[0064] In this embodiment, multiple fixing parts 221 in a lifting assembly 200 are fixed by the connecting part 400, which facilitates overall maintenance of the moving assembly and targeted maintenance of a specific guide assembly 220. Simultaneously, it ensures that the drive part 210 can simultaneously control the movement of multiple moving parts 222 via the connecting part 400. For example, by opening holes in the connecting part 400 and using a cylinder as the drive part 210, the moving parts 222 can be simultaneously driven to move along the second direction OY via the connecting part 400, ensuring that different guide assemblies 220 in the same lifting assembly 200 can synchronously raise the cutter head 23.

[0065] Limited, a lifting assembly 200 includes two sets of guide assemblies 220, which are symmetrically arranged on both sides of the drive part 210 along the first direction OX, thereby maintaining the uniformity of the support force of the two sets of guide assemblies 220 on the support assembly 300.

[0066] In this application, a lifting assembly 200 includes two guide assemblies 220.

[0067] See Figure 3 and Figure 4 In one embodiment, the support assembly 300 includes a plurality of support rods 310 and a connector 320. One end of the connector 320 near the base 21 is connected to the plurality of support rods 310, and each support rod 310 is provided with a positioning groove 310a. The end of the moving part 222 facing away from the base 21 along the second direction OY is connected to the connector 320. Thus, the moving part 222 drives the connector 320 to move, and the support rods 310 support the cutter head 23.

[0068] Specifically, the support assembly 300 includes two support rods 310, which are respectively connected to the two ends of the connector 320 along the first direction OX and extend horizontally toward the base 21.

[0069] See Figure 3 and Figure 4 In one embodiment, the automatic tool changer 10 includes multiple sets of fastening components, each set including multiple fasteners 500. The connector 320 has multiple connecting holes 321 along the second direction OY. The multiple fasteners 500, the multiple connecting holes 321, and the multiple moving parts 222 correspond one-to-one. The fasteners 500 pass through the connecting holes 321 and are connected to the moving parts 222. In this embodiment, the connector 320 is connected to the moving parts 222 by means of a fastener, thereby ensuring that the moving parts 222 can stably support the connector 320.

[0070] See Figure 5 In one embodiment, the fastener 500 includes a head 510 and a rod 520. The connecting hole 321 includes a fastening hole 321a and a fastening groove 321b coaxially arranged. The fastener 320 has a fastening hole 321a along the second direction OY. The fastener 320 has a fastening groove 321b on one side away from the moving part 222. The fastening groove 321b communicates with the fastening hole 321a. The rod 520 passes through the fastening hole 321a and connects with the moving part 222. The head 510 is located in the fastening groove 321b, so that the head 510 can be accommodated in the fastening groove 321b, and the connection between the moving part 222 and the fastener 320 is more stable.

[0071] In one embodiment, the automatic tool changer 10 further includes a sensor. The tool disc 23 has a protrusion adapted to the positioning groove 310a on the side near the support assembly 300. The sensor is disposed on the bottom wall of the positioning groove 310a to sense the distance from the protrusion, thereby monitoring the relative position of the tool disc 23 relative to the base 21 in real time and ensuring the stability of tool changing for the drilling assembly 22.

[0072] See Figure 5 In one embodiment, the guide assembly 220 includes a linear bearing 230, which is disposed in the guide hole 221a, and the guide rod 240 passes through the linear bearing 230. In this embodiment, by replacing the guide rail with the linear bearing 230 in the prior art, the entire set of mounting parts is machined to ensure accuracy, thereby reducing the time spent on machining, assembly and debugging.

[0073] See Figure 3 and Figure 4In one embodiment, the fixing component 100 includes a fixing strip 110 and a plurality of fixing blocks 120. One end of the fixing block 120 is connected to the base 21 and the other end is connected to the fixing strip 110. The fixing strip 110 extends along the first direction OX. A plurality of lifting components 200 are disposed on the side of the fixing strip 110 away from the fixing block 120, so that the fixing strip 110 can be positioned away from the base 21 by the fixing block 120. The support rod 310 extends horizontally towards the base 21 to prevent the cutter head 23 from occupying too much space above the base 21, thus providing space for the drilling component 22 to move. At the same time, one fixing strip 110 can fix a plurality of lifting components 200 along the first direction OX, thereby fixing a plurality of cutter heads 23.

[0074] Specifically, the fixing component 100 includes a fixing strip 110 and two fixing blocks 120, with the two fixing blocks 120 respectively connected to both ends of the fixing strip 110 along the first direction OX.

[0075] See Figure 6 Preferably, the automatic tool changer 10 further includes multiple positioning pins 600, the fixing strip 110 has multiple first positioning holes 110a, and the fixing part 221 has multiple second positioning holes 221b. The multiple positioning pins 600, the multiple first positioning holes 110a, and the multiple second positioning holes 221b correspond one-to-one. One end of the positioning pin 600 is located in the second positioning hole 221b and connected to the fixing part 221, and the other end is located in the first positioning hole 110a and connected to the fixing strip 110, so that the fixing part 221 can be easily installed in the designated position on the fixing strip 110 without measurement and can be installed quickly.

[0076] In one embodiment, the automatic tool changer 10 further includes a dust cover 700, which covers and is connected to the connecting part 400, and is used to prevent dust from entering the connection between the connecting part 400 and the fixing part 221 and between the connecting part 400 and the fixing bar 110.

[0077] Specifically, the drive unit 210 is a motor or cylinder and is connected to the fixed bar 110 to drive the fixed bar 110 to move along the second direction OY. It can also be other drive forms, which will not be described in detail here.

[0078] See Figure 1 An embodiment of this application also provides a drilling machine 20, which includes: a base 21, a drilling assembly 22, a cutter head 23, and a plurality of automatic tool changers 10.

[0079] See Figure 1 and Figure 2One end of the fixing component 100 is connected to the base 21 of the drilling machine 20, the support component 300 is used to support the cutter head 23, the drilling component 22 is used to drill holes in the circuit board, and multiple automatic tool changers 10 are arranged sequentially along the first direction OX.

[0080] During operation, the aforementioned drilling machine 20, due to the fixed component 100 connected to the base 21 being equipped with multiple lifting components 200, each lifting component 200 correspondingly supports multiple support components 300 to rise or fall, thereby driving multiple cutter heads 23 on the multiple support components 300 to rise or fall. If it is necessary to change the tool of the drilling component 22 and raise a certain cutter head 23, it is only necessary to raise the support component 300 by the corresponding lifting component 200. Compared with the prior art, the automatic tool changer 10 of this application embodiment can... The tool head 23 can be raised or lowered in a targeted manner, and the structure is relatively simple. There is no need for a transfer module to drive the tool head 23 to move. The tool head 23 is supported by multiple moving parts 222 in multiple guide components 220, which can ensure the stability of the tool head 23 during support, raising and lowering. The moving parts 222 are limited by the guide holes 221a, so that the moving parts 222 can move relative to the fixed part 221 in the second direction OY, thereby preventing the tool head 23 from deviating due to shaking during the movement of the tool head 23 and ensuring stable tool changing of the drilling assembly 22.

[0081] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An automatic tool changer, characterized by include: A fixing component, one end of which is connected to the base of the drilling machine; Multiple lifting components are disposed at the end of the fixed component away from the base. The multiple lifting components are arranged along a first direction. Each lifting component includes multiple guide components. Each guide component includes a fixed part and a movable part. The fixed part is disposed at the end of the fixed component away from the base. The movable part moves and cooperates with the fixed part along a second direction. The fixed part has a guide hole along the second direction. The movable part is a guide rod. The guide rod passes through the guide hole and moves relative to the fixed part along the second direction. Multiple support components are connected one-to-one with multiple lifting components, and the lifting components are used to raise or lower the corresponding support components; The first direction is the arrangement direction of the multiple drilling components of the drilling machine, and the second direction is a vertical direction and perpendicular to the first direction.

2. The automatic tool changer according to claim 1, characterized in that The lifting assembly further includes a drive unit connected to the fixing assembly, which is used to drive the guide rod to move relative to the fixing assembly in the second direction.

3. The automatic tool changer according to claim 2, characterized in that The support component is provided with a positioning groove for positioning the cutter head.

4. The automatic tool changer according to claim 2, characterized in that The automatic tool changer also includes a connecting part; The connection is located at the end of the fixing component away from the base, and the connection part is provided with a plurality of through holes that correspond one-to-one with the guide holes along the second direction; The fixing part is connected to the connecting part, and the guide hole and the corresponding through hole are coaxially arranged; The guide rod is sequentially inserted through the through hole and the guide hole, and the driving part is connected to the connecting part and is used to drive the guide rod to move along the second direction.

5. The automatic tool changer according to claim 2, characterized in that The support assembly includes multiple support rods and connectors; One end of the connector near the base is connected to a plurality of the support rods, and the support rods are provided with positioning grooves; The end of the movable part that is away from the base along the second direction is connected to the connector.

6. The automatic tool changer according to claim 5, characterized in that The automatic tool changer includes multiple sets of fastening components, and each set of fastening components includes multiple fasteners; The connector has multiple connection holes along the second direction, and the multiple fasteners, the multiple connection holes, and the multiple moving parts correspond one-to-one. The fasteners pass through the connection holes and are connected to the moving parts.

7. The automatic tool changer according to claim 6, characterized in that, The fastener includes a head and a rod. The connecting hole includes a fastening hole and a fastening groove arranged coaxially. The fastener has a fastening hole along a second direction. The fastener has a fastening groove on one side of the fastener away from the moving part. The fastening groove communicates with the fastening hole. The rod passes through the fastening hole and connects to the moving part. The head is located in the fastening groove.

8. The automatic tool changer according to claim 3, characterized in that The automatic tool changer also includes a sensor. The tool disc has a protrusion adapted to the positioning groove on the side near the support assembly. The sensor is located on the bottom wall of the positioning groove to sense the distance to the protrusion.

9. The automatic tool changer according to claim 1, characterized in that The guide assembly includes a linear bearing disposed within the guide hole, and the guide rod passes through the linear bearing.

10. A drill, characterized in that The drilling machine includes: a base, a drilling assembly, a cutter head, and an automatic tool changer as described in any one of claims 1-9; One end of the fixing assembly is connected with a base of a drill, the supporting assembly is used for supporting the cutter head, and the drilling assembly is used for drilling the circuit board.

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