A drilling inkjet device and method for quickly locating pin holes

Abstract

This invention provides a drilling inkjet device for quickly locating pin holes, comprising a drilling assembly and an inkjet assembly. The drilling assembly includes a drill bit and a drilling drive. The drill bit is used to drill pin holes in a pad. The pad contains a plurality of pin holes for positioning different workpieces, and the size or position of the pin holes for positioning different workpieces is different. The inkjet assembly includes a printhead and an inkjet drive. The printhead is fixedly disposed on the side of the drill bit and connected to the inkjet drive. The inkjet drive operates synchronously with the drilling drive, ensuring that an inkjet mark is simultaneously formed on the outer side of the pin hole as it is formed. This application achieves pin hole marking by drilling and inkjet marking simultaneously, thereby quickly determining the position of the pin holes in the pad, fixing the workpiece and the pad, and improving the efficiency of workpiece fixing.

Description

Technical Field

[0001] This invention relates to the technical field of workpiece positioning before drilling, and in particular to a drilling inkjet device and method for quickly positioning pin holes. Technical Background

[0002] In the drilling process of PCB manufacturing, the PCB board needs to be placed in a drilling rig pad before drilling is performed on the fixed PCB board. The current fixing method is as follows: a pad is placed in the base of the drilling rig, and the pad is fixedly connected to the base. The pad has pin holes corresponding to the PCB board, and the PCB board has corresponding positioning holes. By aligning the positioning holes in the PCB board with the pin holes in the pad, and fixing the PCB board and the pad with screws or other fasteners, the PCB board is thus secured.

[0003] Because the positions and sizes of positioning holes differ across PCBs of different sizes, and the distances between these holes also vary, corresponding pin holes need to be drilled in a backing plate for each PCB model to secure it. In existing technology, the backing plate is a reusable component; that is, before drilling each pin hole, the drilling location must be selected in a blank area of ​​the backing plate. This improves the utilization rate of the backing plate and avoids the decrease in drilling efficiency caused by repeated backing plate replacements.

[0004] In existing technologies, to ensure that existing pin holes are avoided during each drilling operation, it is necessary to first mark blank areas on the backing plate, such as circular marks, and then drill holes at the marked locations to form the corresponding pin holes. Furthermore, for the same PCB board, typically two or more pin holes are required to secure it. This prioritization of marking before drilling has the following problems: the marking process is cumbersome, and identifying the marked locations takes time; additionally, during the pin hole drilling process, marking with a marking device followed by drilling involves frequent movement of the backing plate or frequent replacement of the marking and drilling devices, which hinders rapid pin hole positioning and preparation, thus affecting the overall drilling process and PCB board production efficiency. Summary of the Invention

[0005] The present invention aims to at least partially solve one of the problems in the related art. To this end, the purpose of the present invention is to provide a drilling inkjet device and method for quickly locating pin holes. By marking the pin holes while drilling, the position of the pin holes in the pad can be quickly determined, thereby fixing the workpiece and the pad and improving the efficiency of workpiece fixing.

[0006] To achieve the above objectives, this application adopts the following technical solution: a drilling inkjet device for quickly positioning pin holes, comprising a drilling assembly and an inkjet assembly;

[0007] The drilling assembly includes a drill bit and a drilling drive; the drill bit is used to drill pin holes on a backing plate; the backing plate includes a plurality of pin holes for positioning different workpieces, and the pin holes for positioning different workpieces have different sizes or positions.

[0008] The inkjet assembly includes a printhead and an inkjet drive. The printhead is fixedly disposed on the side of the drill bit and is connected to the inkjet drive. The inkjet drive operates synchronously with the drilling drive to ensure that an inkjet mark is formed on the outer side of the pin hole at the same time as the pin hole is formed.

[0009] Furthermore, the inkjet assembly also includes an inkjet cartridge, and the printhead is connected to the inkjet cartridge via a control valve, which is communicatively connected to the inkjet drive.

[0010] Furthermore, the inkjet assembly also includes a time relay, which is connected to both the inkjet driver and the control valve. When the inkjet driver controls the control valve to open, the time relay starts timing, causing the control valve to close after a preset time.

[0011] Furthermore, the ink in the inkjet cartridge is a quick-drying solvent ink or a decolorizing ink.

[0012] Furthermore, the drilling assembly also includes a housing and a drilling drive shaft, the drilling drive component is connected to the drill bit through the drilling drive shaft, and the housing is located outside the drilling drive shaft;

[0013] The nozzle has a ring-shaped or arc-shaped structure, and the nozzle is fixedly connected to the housing via a fixed bracket.

[0014] Furthermore, the drilling assembly also includes a housing and a drilling drive shaft, the drilling drive component is connected to the drill bit through the drilling drive shaft, and the housing is located outside the drilling drive shaft;

[0015] The inkjet assembly also includes an annular sleeve, which is disposed around the outside of the housing, and a plurality of printheads are disposed on the side of the annular sleeve near the pad.

[0016] Furthermore, the axis of the annular sheath overlaps with the axis of the drill bit.

[0017] Furthermore, the inkjet driver and the drilling driver are connected via a synchronization controller.

[0018] A drilling inkjet method for rapidly positioning pin holes, based on a drilling inkjet device for rapidly positioning pin holes as described above, includes:

[0019] The nozzle is fixedly mounted on the side of the drill bit;

[0020] The drilling drive and the inkjet drive operate synchronously. The drilling drive controls the drill bit to drill a pin hole on the pad, and the inkjet drive controls the printhead to spray ink during the drilling process to form an inkjet mark located outside the pin hole.

[0021] The location of the pin holes in the pad is quickly identified by inkjet marking, and the workpiece and pad are fixed by the positioning holes in the workpiece and the pin holes in the pad.

[0022] Furthermore, after the workpiece and the pad are fixed, the process further includes: drilling the workpiece using a drilling assembly.

[0023] The beneficial effects of this invention are:

[0024] This application provides a drilling inkjet device for quickly locating pin holes, comprising a drilling assembly and an inkjet assembly. The drilling assembly includes a drill bit and a drilling drive. The drill bit is used to drill pin holes on a pad. The pad contains a plurality of pin holes for positioning different workpieces, and the size or position of the pin holes for positioning different workpieces is different. The inkjet assembly includes a printhead and an inkjet drive. The printhead is fixedly disposed on the side of the drill bit and connected to the inkjet drive. The inkjet drive operates synchronously with the drilling drive, ensuring that an inkjet mark is simultaneously formed on the outer side of the pin hole as it is formed. This application integrates the drilling assembly and the inkjet assembly. By fixing the drill bit and the printhead and maintaining synchronous rotation, an inkjet mark is simultaneously formed on the outer side of the pin hole as it is formed. In this way, after drilling is completed, the position of the pin hole can be quickly identified in the pad and aligned with the positioning hole in the workpiece, thereby achieving rapid fixation of the workpiece. This application has a simple structure and a simple control method, which simplifies the defects of drilling and marking the pin positioning holes in the pad in a step-by-step operation, improves the drilling and marking process of the pin holes, improves the fixing efficiency of the workpiece and the pad, and thus improves the drilling efficiency of the workpiece.

[0025] This application provides a drilling inkjet method for quickly locating pin holes. It has a simple structure and is easy to operate. It can simultaneously form pin holes and their outer marks, ensuring that operators can quickly locate the required pin hole among multiple pin holes in the pad. This improves the drilling and marking process of pin holes, increases the fixing efficiency of the workpiece and the pad, and thus improves the drilling efficiency of the workpiece. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the drill bit and spray coating after assembly in this application;

[0029] Figure 2 This is a schematic diagram of the pin hole formed in this application and its outer markings;

[0030] Figure 3 This is a schematic diagram of the frame of the drilling inkjet device of this application.

[0031] In the attached image:

[0032] 11. Drill bit; 12. Printhead; 13. Mounting bracket; 14. Drilling drive shaft; 15. Housing; 20. Pad; 21. Pin hole; 22. Inkjet marking. Detailed Implementation

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0035] Example 1

[0036] like Figures 1-3 As shown, this application provides a drilling inkjet device for quickly positioning pin holes, including a drilling assembly and an inkjet assembly; the drilling assembly includes a drill bit 11 and a drilling drive; the drill bit 11 is used to drill pin holes 21 on a pad 20; the pad 20 includes a plurality of pin holes 21 for positioning different workpieces, and the size or position of the pin holes 21 for positioning different workpieces are different; the inkjet assembly includes a printhead 12 and an inkjet drive, the printhead 12 is fixedly disposed on the side of the drill bit 11, the printhead 12 is connected to the inkjet drive, and the inkjet drive operates synchronously with the drilling drive to ensure that while the pin hole 21 is formed, an inkjet mark 22 is simultaneously formed on the outer side of the pin hole 21.

[0037] This application allows the printhead 12 and drill bit 11 to be fixed together, meaning that during the rotation of the drill bit 11, the printhead 12 rotates synchronously with the drill bit 11, achieving simultaneous drilling and inkjet printing. Alternatively, the printhead 12 and drill bit 11 can be fixed together using other fixing components to ensure that the drill bit 11 and printhead 12 move synchronously, but do not rotate synchronously. This is because during drilling, the drill bit 11 rotates at a relatively high speed; if the printhead 12 moves together, it will result in a large centrifugal force for inkjet printing, affecting the accuracy of the inkjet marking 22.

[0038] This application integrates the drilling assembly and the inkjet assembly. By fixing the drill bit 11 and the print head 12 and keeping them rotating synchronously, inkjet marks 22 are formed on the outer side of the pin hole 21 at the same time. In this way, after drilling is completed, the position of the pin hole 21 can be quickly identified in the pad 20 and aligned with the positioning hole in the workpiece to achieve rapid fixation of the workpiece.

[0039] This application has a simple structure and a simple control method, which simplifies the defects of drilling and marking the pin positioning holes in the pad 20 in a step-by-step operation, improves the drilling and marking process of the pin holes 21, improves the fixing efficiency of the workpiece and the pad 20, and thus improves the drilling efficiency of the workpiece.

[0040] The core of this application lies in applying the device and method of drilling and inkjet printing simultaneously to the pad 20 for drilling pin holes 21. Given the reusability of the pad 20 and the fact that it already has multiple pin holes 21 of different positions and sizes, this application adopts a method of drilling and marking simultaneously for new pin holes 21, which can quickly identify the required pin holes 21, thereby improving the efficiency of alignment, positioning and fixing between the workpiece and the pad 20.

[0041] Example 2

[0042] like Figures 1-3As shown, this application provides a drilling inkjet device for quickly positioning pin holes, including a drilling assembly and an inkjet assembly; the drilling assembly includes a drill bit 11 and a drilling drive; the drill bit 11 is used to drill pin holes 21 on a pad 20; the pad 20 includes a plurality of pin holes 21 for positioning different workpieces, and the size or position of the pin holes 21 for positioning different workpieces are different; the inkjet assembly includes a printhead 12 and an inkjet drive, the printhead 12 is fixedly disposed on the side of the drill bit 11, the printhead 12 is connected to the inkjet drive, and the inkjet drive operates synchronously with the drilling drive to ensure that while the pin hole 21 is formed, an inkjet mark 22 is simultaneously formed on the outer side of the pin hole 21.

[0043] The drilling assembly also includes a housing and a drilling drive shaft 14. The drilling drive is connected to the drill bit 11 via the drilling drive shaft 14. The housing is located outside the drilling drive shaft 14. A pad 20 is provided below the drilling drive shaft 14. The drill bit 11 is installed on the side of the drilling drive shaft 14 near the pad 20. The drilling drive is used to control the rotation of the drilling drive shaft 14 and the drill bit 11, thereby drilling a pin hole 21 in the pad 20.

[0044] This application fixes the nozzle 12 and the housing 15 together. In this way, when the drilling drive unit drives the drilling drive shaft 14 and the drill bit 11 to move back and forth, left and right, up and down, the housing 15 can synchronously drive the drill bit 11 to move back and forth, left and right, up and down. When the drilling drive unit drives the drilling drive shaft 14 and the drill bit 11 to rotate and drill, the housing 15 is fixed relative to the drill bit 11 and the vacuum drive shaft, ensuring that the nozzle 12 does not rotate relative to the drill bit 11.

[0045] Specifically, the inkjet assembly of this application also includes an inkjet cartridge, and the printhead 12 is connected to the inkjet cartridge via a control valve, which is communicatively connected to the inkjet driver. The inkjet driver can control the control valve to open or close. When the control valve is open, ink in the inkjet cartridge is ejected through the printhead 12 to achieve marking on the side of the drill bit 11. When the control valve is closed, the printhead 12 stops ejecting ink.

[0046] The inkjet mark 22 ultimately formed in this application is located outside the drilled pin hole 21. It can be a circular structure surrounding the pin hole 21 or an arc-shaped structure surrounding the pin hole 21. It only needs to be able to distinguish the newly drilled pin hole 21 from the previously existing pin hole 21.

[0047] To avoid ink waste, this application can control the inkjet printing time of the printhead 12 to be less than the drilling time, so that only an inkjet mark 22 is formed on the outside of the pin hole 21, without the need for repeated inkjet printing. Specifically, the inkjet assembly also includes a time relay, which is connected to both the inkjet driver and the control valve. When the inkjet driver controls the control valve to open, the time relay starts timing, causing the control valve to close after a preset time.

[0048] In actual operation, the countdown timer of the time relay can be determined based on the ink output of the printhead 12 and the size of the pin positioning hole, ensuring that a circular or arc-shaped mark is formed on the outside of the pin hole 21 during inkjet printing. Specifically, the inkjet drive and the drilling drive are connected by a synchronization controller. The presence of the synchronization controller ensures that the inkjet drive and the drilling drive start operating simultaneously. Here, the drilling drive refers to the drive used to rotate the drill bit 11 and the drilling drive shaft 14 for drilling. Specifically, the drilling drive can be further divided into a position adjustment unit and a drilling unit. The position adjustment unit is used to move the drill bit 11 up, down, left, right, forward, and backward through the drilling drive shaft 14, so that when the pad 20 is fixed, the drill bit 11 can move to the position to be drilled. The drilling unit is used to rotate the drill bit 11 through the drilling drive shaft 14 to drill, realizing the drilling process of the pin hole 21 in the pad 20.

[0049] In this application, the inkjet drive and drilling unit are connected via a synchronous controller. When the position adjustment unit operates, it drives the drill bit 11 and the printhead 12 on the housing 15 to perform synchronous position adjustments. When the drilling unit operates, it drives the drilling drive shaft 14 and the drill bit 11 to rotate. Simultaneously, the inkjet drive connected to the drilling unit via the synchronous controller starts operating, controlling the control valve to open and achieve inkjet printing. When the control valve opens, the time relay starts timing, ensuring that the control valve closes after the printhead 12 has printed for a preset time. At this time, an inkjet mark 22 is formed on the outside of the pin hole 21. The specific timing duration of the time relay can be 0.5 seconds or 1 second.

[0050] The timing relay's duration can be less than or equal to the drilling time, and can be set via the time relay itself. Once drilling is complete, an inkjet mark 22 is formed on the outside of the pin hole 21, achieving the purpose of marking while drilling, as described in this application. The synchronization controller ensures that drilling and marking begin simultaneously, while the time relay allows for independent control of the inkjet mark 22's completion time, preventing repeated marking at the same location, ink waste, and difficulties in subsequent ink cleaning.

[0051] The ink in the inkjet cartridge of this application is a quick-drying solvent ink or a decolorizing ink, which dries immediately after drilling, avoiding ink contamination of the workpiece during assembly of the pad 20 and the workpiece. After the workpiece has completed the drilling process, the workpiece and the pad 20 are separated, and the inkjet markings 22 are wiped with an organic solvent to avoid interference with subsequent inkjet markings 22.

[0052] The ink in the inkjet cartridge of this application is a decolorizable ink. This decolorizable ink contains a color-developing agent and a volatile substance. The color-developing agent undergoes an oxidation-reduction reaction with oxygen in the air, thereby achieving rapid decolorization of the inkjet markings. The volatile substance can be alcohol or other volatile substances. After the volatile substance evaporates and the color-developing agent undergoes an oxidation-reduction reaction with oxygen in the air, the inkjet markings automatically disappear without requiring additional processing, thus avoiding interference from subsequent inkjet markings 22.

[0053] As a specific embodiment, the printhead 12 in this application has an annular or arc-shaped structure, and the printhead 12 is fixedly connected to the housing via a fixing bracket 13. In actual operation, the printhead 12 is designed as an annular or arc-shaped structure, wherein the angle of the arc-shaped printhead 12 needs to be greater than 90° to achieve the marking function of the positioning hole. When the drill bit 11 starts to rotate and drill, the control valve opens, and ink is ejected from the annular or arc-shaped printhead 12. Since the printhead 12 is located outside the drill bit 11, marking can be achieved on the outside of the pin hole 21. In this structure, there is no need to move the printhead 12, and an annular or arc-shaped inkjet mark 22 surrounding the pin hole 21 can be formed in one go.

[0054] In actual operation, the outlet direction of the printhead 12 can be vertical, that is, parallel to the extension direction of the drilling drive shaft 14 or the drill bit 11. The outlet direction of the printhead 12 can also be an inclined direction, either away from or close to the drill bit 11. When the outlet direction of the printhead 12 is set to be inclined towards the drill bit 11, the inclination angle needs to be set according to the distance between the housing 15 and the drill bit 11 to ensure that the ink ejected by the printhead 12 is located outside the pin hole 21, thus achieving the marking effect. When the outlet direction of the printhead 12 is set to be inclined away from the drilling direction, a smaller inclination angle is usually set to avoid the inkjet mark 22 being too far from the pin hole 21, which would affect the marking effect.

[0055] In another specific embodiment, the inkjet assembly of this application further includes an annular sleeve, which is disposed around the outside of the housing. A plurality of printheads 12 are arranged on the side of the annular sleeve near the pad 20. The plurality of printheads 12 can be understood as multiple outlets located at the bottom of the annular sleeve. The annular sleeve is connected to the inkjet cartridge via a control valve. When the control valve is open, ink enters the interior of the annular sleeve and is ejected through the printheads 12 onto the outside of the pin holes 21. When the control valve is closed, ink ejection stops.

[0056] When several printheads 12 are interconnected, a circular inkjet mark 22 can be formed on the outside of the pin hole 21. When several printheads 12 are not interconnected and are independently and evenly distributed below the annular sheath, a dotted inkjet mark 22 can be formed on the outside of the pin hole 21. Both of the above structures can achieve the marking function of the pin hole 21.

[0057] To ensure that the inkjet mark 22 corresponds to the pin hole 21, in this embodiment, the axis of the annular sheath can be set to overlap with the axis of the drill bit 11. In this way, an inkjet mark 22 concentrically positioned on the outside of the pin hole 21 can be formed. For example, when the diameter of the pin hole is 3.175 mm, the diameter of the circular inkjet mark 22 can be set to 4.0 mm or 4.5 mm.

[0058] In another specific embodiment, the inkjet assembly of this application further includes an annular slide rail, which is arranged around the outside of the housing. A printhead 12 is disposed on the side of the annular slide rail near the pad 20, and the printhead 12 is slidably connected to the annular slide rail. The printhead 12 is connected to a sliding drive component, which is communicatively connected to the inkjet drive component. The inkjet drive component can drive the printhead 12 to slide in the annular track through the sliding drive component, thereby realizing the circular marking on the outside of the pin hole 21.

[0059] In actual operation, the drilling drive unit can be further divided into a position adjustment unit and a drilling unit. The position adjustment unit is used to drive the drill bit 11 to move up, down, left, right, forward, and backward via the drilling drive shaft 14, so that when the pad 20 is fixed, the drill bit 11 can move to the position to be drilled. The drilling unit is used to drive the drill bit 11 to rotate and drill through the drilling drive shaft 14, thereby realizing the drilling process of the pin hole 21 in the pad 20.

[0060] The inkjet drive and drilling unit are connected via a synchronization controller. When the position adjustment unit is running, it can synchronously adjust the position of the drill bit 11 and the printhead 12 on the housing 15. When the drilling unit is running, it drives the drilling drive shaft 14 and the drill bit 11 to rotate. At the same time, the inkjet drive connected to the drilling unit via the synchronization controller starts to run. At this time, the control valve opens, and the sliding drive starts to drive the printhead 12 to slide along the circular track, ensuring that the printhead 12 moves while spraying ink. When the control valve opens, the time relay starts timing. Specifically, the timing duration of the time relay can be set to be equal to the time it takes for the printhead 12 to slide around the circular track once, ensuring that the printhead 12 forms a circular inkjet mark 22 on the outside of the pin hole 21. After that, the time relay disconnects, causing the control valve to close.

[0061] Example 3

[0062] This application also provides a drilling inkjet method for quickly positioning pin holes 21, including:

[0063] S1: The nozzle 12 is fixedly mounted on the side of the drill bit 11; specifically, the nozzle 12 can be fixedly mounted in the housing 15 outside the drilling drive shaft 14. When the drilling drive unit drives the drilling drive shaft 14 and the drill bit 11 to move forward, backward, left, right, up, and down, the housing 15 can synchronously drive the drill bit 11 to move forward, backward, left, right, up, and down. When the drilling drive unit drives the drilling drive shaft 14 and the drill bit 11 to rotate and drill, the housing 15 is fixed relative to the drill bit 11 and the vacuum drive shaft, ensuring that the nozzle 12 does not rotate relative to the drill bit 11.

[0064] S2: The drilling drive and the inkjet drive operate synchronously. The drilling drive controls the drill bit 11 to drill a pin hole 21 on the pad 20. The inkjet drive controls the printhead 12 to spray ink during the drilling process, forming an inkjet mark 22 located outside the pin hole 21.

[0065] The inkjet drive and drilling unit are connected via a synchronization controller. When the position adjustment unit operates, it synchronously adjusts the position of the drill bit 11 and the printhead 12 on the housing 15. When the drilling unit operates, it rotates the drilling drive shaft 14 and the drill bit 11. Simultaneously, the inkjet drive, connected to the drilling unit via the synchronization controller, starts operating, opening the control valve to achieve inkjet printing. When the control valve opens, a time relay starts timing, ensuring that the control valve closes after the printhead 12 has printed for a preset time. At this point, an inkjet mark 22 is formed on the outside of the pin hole 21. The specific timing duration of the time relay can be 0.5 seconds or 1 second.

[0066] The timing relay's duration can be less than or equal to the drilling time, and can be set via the time relay itself. Once drilling is complete, an inkjet mark 22 is formed on the outside of the pin hole 21, achieving the purpose of marking while drilling, as described in this application. The synchronization controller ensures that drilling and marking begin simultaneously, while the time relay allows for independent control of the inkjet mark 22's completion time, preventing repeated marking at the same location, ink waste, and difficulties in subsequent ink cleaning.

[0067] S3: The position of the pin hole 21 in the pad 20 is quickly identified by the inkjet marking 22, and the workpiece and the pad 20 are fixed by the positioning hole in the workpiece and the pin hole 21 in the pad 20.

[0068] The ink in the inkjet cartridge of this application is a quick-drying solvent ink or a decolorizing ink, which can be dried after drilling is completed, thus avoiding ink contamination of the workpiece during the assembly of the pad 20 and the workpiece.

[0069] S4: Drilling process is performed on the workpiece using a drilling assembly.

[0070] The drilling process here refers to processes such as back drilling or through-hole drilling on the workpiece. When the workpiece is a PCB board, the PCB board needs to be fixed in the pad 20 first, and then the PCB board is drilled according to the preset program. The drilling here refers to drilling functional holes other than positioning holes.

[0071] After the workpiece has completed the drilling process, the workpiece and the pad 20 are separated. At the same time, the inkjet markings 22 are wiped with organic solvents to avoid interfering with the subsequent inkjet markings 22.

[0072] The core of this application lies in applying the device and method of drilling and inkjet printing simultaneously to the pad 20 for drilling pin holes 21. Given the reusability of the pad 20 and the fact that it already has multiple pin holes 21 of different positions and sizes, this application adopts a method of drilling and marking simultaneously for new pin holes 21, which can quickly identify the required pin holes 21, thereby improving the efficiency of alignment, positioning and fixing between the workpiece and the pad 20, and further improving the drilling process efficiency of the workpiece.

[0073] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A drilling inkjet device for quickly positioning pin holes, characterized in that, Including drilling components and inkjet components; The drilling assembly includes a drill bit and a drilling drive; the drill bit is used to drill pin holes on a backing plate; the backing plate includes a plurality of pin holes for positioning different workpieces, and the pin holes for positioning different workpieces have different sizes or positions. The inkjet assembly includes a printhead and an inkjet driver. The printhead is fixedly mounted on the side of the drill bit and connected to the inkjet driver. The inkjet driver operates synchronously with the drilling driver to ensure that an inkjet mark is formed on the outer side of the pin hole simultaneously with the pin hole formation. The inkjet mark is a ring-shaped or arc-shaped inkjet mark surrounding the pin hole. The inkjet assembly also includes an inkjet cartridge. The printhead is connected to the inkjet cartridge via a control valve, which is communicatively connected to the inkjet driver. The inkjet assembly also includes a time relay, which is connected to both the inkjet driver and the control valve. When the inkjet driver controls the control valve to open, the time relay starts timing, causing the control valve to close after a preset time to avoid repeated marking at the same location. The ink in the inkjet cartridge is a quick-drying solvent-based ink or a decolorizing ink. The inkjet driver and the drilling driver are connected via a synchronization controller.

2. The drilling inkjet device for quickly positioning pin holes according to claim 1, characterized in that, The drilling assembly also includes a housing and a drilling drive shaft, the drilling drive component is connected to the drill bit through the drilling drive shaft, and the housing is located outside the drilling drive shaft; The nozzle has a ring-shaped or arc-shaped structure, and the nozzle is fixedly connected to the housing via a fixed bracket.

3. The drilling inkjet device for quickly positioning pin holes according to claim 1, characterized in that, The drilling assembly also includes a housing and a drilling drive shaft, the drilling drive component is connected to the drill bit through the drilling drive shaft, and the housing is located outside the drilling drive shaft; The inkjet assembly also includes an annular sleeve, which is disposed around the outside of the housing, and a plurality of printheads are disposed on the side of the annular sleeve near the pad.

4. The drilling inkjet device for quickly positioning pin holes according to claim 3, characterized in that, The axis of the annular sheath overlaps with the axis of the drill bit.

5. A drilling inkjet method for rapidly locating pin holes, characterized in that, The drilling inkjet device for quickly positioning pin holes according to claim 1 includes: The nozzle is fixedly mounted on the side of the drill bit; The drilling drive and the inkjet drive operate synchronously. The drilling drive controls the drill bit to drill a pin hole on the pad, and the inkjet drive controls the printhead to spray ink during the drilling process to form an inkjet mark located outside the pin hole. The location of the pin holes in the pad is quickly identified by inkjet marking, and the workpiece and pad are fixed by the positioning holes in the workpiece and the pin holes in the pad.

6. The inkjet drilling method for rapidly positioning pin holes according to claim 5, characterized in that, After the workpiece and the pad are fixed, the process further includes drilling the workpiece using a drilling assembly.

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