A drill point cleaning machine

Abstract

The utility model discloses a drill needle cleaning machine, including frame, portal frame, material loading conveying belt mechanism, material discharging conveying belt mechanism, be used to butt joint material loading conveying belt mechanism and material discharging conveying belt mechanism's take drill needle conveying belt mechanism, be used to push and pull material box's push material box mechanism and pull material box mechanism, be used to brake the material box positioning mechanism that takes drill needle conveying belt mechanism on, be used to take out and shift the drill needle in material box's take drill needle manipulator, be used to drive take drill needle manipulator to move around left and right take needle shift mechanism, be used to clean the drill needle cleaning mechanism of drill needle. The utility model can realize the automatic feeding and discharging of material box, automatic positioning, the automatic clamping of drill needle and automatic cleaning, reaches the purpose that removes the sticky dust and winding cutting chip on drill needle, and its degree of automation is high, and the efficiency is high, can satisfy the scale production demand of enterprise.

Description

Technical Field

[0001] This utility model relates to the field of PCB drill bit cleaning technology, and more specifically, to a drill bit cleaning machine. Background Technology

[0002] In PCB manufacturing, multiple sets of circular holes with diameters ranging from 0.1 to 0.02 mm need to be drilled on the board to secure the pins of electronic components. PCB drill bits are specialized tools used to drill these holes. After prolonged use, the cutting edges of PCB drill bits wear down and require resharpening (one drill bit can be resharpened up to 5 times). Before resharpening, it is necessary to clean the cutting edge and the chip removal grooves of the PCB drill bit to remove sticky dust and tangled cutting chips. These residues not only affect drilling quality but also reduce the drill bit's efficiency and shorten its lifespan. Cleaning PCB drill bits facilitates the visual assessment of the cutting edge's grinding results in the next step of the grinding process. Traditional cleaning methods involve manually brushing away sticky dust and tangled cutting chips with a plastic brush. However, because the bristles of the plastic brush are relatively coarse and parallel to the drill bit, it cannot effectively clean the dirt in the chip removal grooves on the 0.02 mm cylindrical surface, easily causing the drill bit to break. Furthermore, although ultrasonic cleaners can remove general dirt, they cannot clean tangled cutting chips. Therefore, a drill bit cleaning machine is needed to solve the cleaning problem of PCB drill bits and extend their lifespan. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a drill bit cleaning machine that can automatically clamp and clean the drill bit, and remove sticky dust and tangled cutting chips from the drill bit.

[0004] To achieve the above objectives, this utility model provides a drill bit cleaning machine, including a frame, a gantry frame, a feeding conveyor belt mechanism, a discharging conveyor belt mechanism, a drill bit picking conveyor belt mechanism for connecting the feeding and discharging conveyor belt mechanisms, a pusher box mechanism for pushing a material box to the drill bit picking conveyor belt mechanism, a material box positioning mechanism for braking the material box on the drill bit picking conveyor belt mechanism, a drill bit picking manipulator for removing and transferring drill bits from the material box, a drill bit picking transfer mechanism for moving the drill bit picking manipulator back, forth, left, and right, a drill bit cleaning mechanism for cleaning drill bits, and a puller box mechanism for pulling the material box to the discharging conveyor belt mechanism. The drill bit picking conveyor belt mechanism is arranged on the worktable of the frame along the length of the frame, and the discharge end of the feeding conveyor belt mechanism is connected to the drill bit picking conveyor belt mechanism. The feed ends of the drill bit conveyor belt mechanism are connected to each other. The pusher box mechanism is located above the discharge end of the feeding conveyor belt mechanism. The material box positioning mechanism is located on the drill bit picking conveyor belt mechanism along the feeding conveying direction of the material box. The feed end of the unloading conveyor belt mechanism is connected to the discharge end of the drill bit picking conveyor belt mechanism. The puller box mechanism is located above the feed end of the unloading conveyor belt mechanism. The gantry frame is set parallel to the feeding conveyor belt mechanism and erected above the drill bit picking conveyor belt mechanism. The drill bit picking transfer mechanism is located on the top of the gantry frame. The drill bit cleaning mechanism is located on one side of the drill bit picking conveyor belt mechanism. The drill bit picking robot is located at the output part of the drill bit picking transfer mechanism and is driven by the drill bit picking transfer mechanism to move back and forth above the drill bit picking conveyor belt mechanism and the drill bit cleaning mechanism.

[0005] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0006] 1. This utility model has a novel structure and reasonable design, which can realize the automatic loading and unloading and automatic positioning of the material box. By automatically gripping the drill bit with the drill bit robotic arm, the cutting edge of the drill bit is inserted into the drill bit cleaning mechanism for automatic cleaning, thereby achieving the purpose of removing sticky dust and entangled cutting chips from the drill bit. The various mechanisms move in a coordinated manner, with a high degree of automation, replacing manual operation, and achieving high efficiency, which can meet the needs of large-scale production of enterprises.

[0007] 2. This utility model transports the material box through the feeding conveyor belt mechanism, the unloading conveyor belt mechanism, and the drill bit picking conveyor belt mechanism, and positions it through the material box positioning mechanism. The drill bit picking robot can clamp the ends of a row of drill bits at one time, with high coordination and reliability. In addition, the drill bit cleaning mechanism uses a physical cleaning method, employing a double-plate stainless steel wire wheel to rotate and scrape the surface of the drill bit. Repeated downward cleaning can effectively remove dirt from the drill bit cutting edge and chip groove, extending the service life of the drill bit. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a structural schematic diagram provided by an embodiment of the present utility model;

[0010] Figure 2 This is a structural schematic diagram of the push box mechanism or pull box mechanism provided in the embodiments of this utility model;

[0011] Figure 3 This is an enlarged schematic diagram of the material box positioning mechanism provided in an embodiment of this utility model;

[0012] Figure 4 This is a schematic diagram of the drill bit transfer mechanism and drill bit manipulator provided in this embodiment of the utility model;

[0013] Figure 5 This is a partial front view schematic diagram of the drill bit retrieval robot provided in this embodiment of the utility model;

[0014] Figure 6 This is a bottom view schematic diagram of the structure of the drill bit retrieval robot provided in this embodiment of the utility model;

[0015] Figure 7 This is a side view of the drill bit retrieval robot provided in this embodiment of the utility model (one side plate is hidden).

[0016] Figure 8 This is an exploded schematic diagram of the drill bit retrieval robot arm structure provided in this embodiment of the utility model;

[0017] Figure 9 This is a schematic diagram of the drill bit cleaning mechanism provided in this embodiment of the utility model. Figure 1 ;

[0018] Figure 10 This is a schematic diagram of the drill bit cleaning mechanism provided in this embodiment of the utility model. Figure 2 ;

[0019] Figure 11 This is an exploded structural diagram of the drill bit cleaning mechanism provided in this embodiment of the utility model;

[0020] Figure 12 This is a schematic diagram of the working state provided by the embodiment of this utility model. Figure 1 ;

[0021] Figure 13This is a schematic diagram of the material box feeding state provided in this embodiment of the utility model;

[0022] Figure 14 This is a schematic diagram of the working state provided by the embodiment of this utility model. Figure 2 . Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Please refer to Figure 1 This utility model provides a drill bit cleaning machine, including a frame 1, a gantry frame 11, a feeding conveyor belt mechanism 2 for feeding and transporting a material box containing uncleaned drill bits, a discharging conveyor belt mechanism 3 for discharging a material box containing cleaned drill bits, a drill bit picking conveyor belt mechanism 4 for connecting the feeding conveyor belt mechanism 2 and the discharging conveyor belt mechanism 3, a pushing box mechanism 21 for pushing the material box to the drill bit picking conveyor belt mechanism 4, a material box positioning mechanism 41 for braking the material box on the drill bit picking conveyor belt mechanism 4, a drill bit picking manipulator 5 for removing and transferring the drill bits from the material box, a drill bit picking transfer mechanism 6 for moving the drill bit picking manipulator 5 back, forth, left, and right, a drill bit cleaning mechanism 7 for cleaning the drill bits, and a pulling box mechanism 31 for pulling the material box to the discharging conveyor belt mechanism 3, etc. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, the drill bit picking conveyor belt mechanism 4 can be set on the workbench of the frame 1 along the length of the frame 1. The discharge end of the feeding conveyor belt mechanism 2 is connected to the feed end of the drill bit picking conveyor belt mechanism 4. The push box mechanism 21 is set above the discharge end of the feeding conveyor belt mechanism 2. The box positioning mechanism 41 is set on the drill bit picking conveyor belt mechanism 4 along the feeding conveying direction of the box. The feed end of the unloading conveyor belt mechanism 3 is connected to the discharge end of the drill bit picking conveyor belt mechanism 4. The pull box mechanism 31 is set above the feed end of the unloading conveyor belt mechanism 3. The gantry frame 11 is set parallel to the feeding conveyor belt mechanism 2 and erected above the drill bit picking conveyor belt mechanism 4. The drill bit picking transfer mechanism 6 is set on the top of the gantry frame 11. The drill bit cleaning mechanism 7 is set on one side of the drill bit picking conveyor belt mechanism 4. The drill bit picking robot 5 is set at the output part of the drill bit picking transfer mechanism 6 and is driven by the drill bit picking transfer mechanism 6 to move back and forth above the drill bit picking conveyor belt mechanism 4 and the drill bit cleaning mechanism 7.

[0026] Among them, the feeding conveyor belt mechanism 2 and the unloading conveyor belt mechanism 3 are both single-line flat belt conveyor lines composed of flat conveyor belts, while the drill bit picking conveyor belt mechanism 4 is a double-line flat belt conveyor line composed of two parallel and spaced belts.

[0027] like Figure 2 As shown, the push-box mechanism 21 and the pull-box mechanism 31 have the same structure and can both include a mounting frame 211, a push-pull cylinder 212, a push-pull mounting plate 213, an upper and lower cylinder 215, an upper and lower cylinder mounting plate 216, an inverted L-shaped push-pull plate 217, a guide rod 218, a guide sleeve 219, and a limiting ring 2171. The mounting frames 211 are respectively mounted on the discharge end of the feeding conveyor belt mechanism 2 and the infeed end of the unloading conveyor belt mechanism 3. The push-pull mounting plate 213 is vertically arranged at the top end of the mounting frame 211 near the drill bit extraction conveyor belt mechanism 4. The push-pull material cylinder 212 is fixedly mounted on the mounting bracket 211. The output shaft of the push-pull material cylinder 212 extends out of the push-pull mounting plate 213 and is connected to the back of the upper and lower cylinder mounting plates 216. The upper and lower cylinders 215 are mounted downwards on the upper and lower cylinder mounting plates 216. There are two guide rods 218, and one end of each guide rod is fixedly connected to the two sides of the upper and lower cylinder mounting plates 216. The other end of the guide rod 218 passes through the guide sleeve 219 inserted on the push-pull mounting plate 213. The other end of the guide rod 218 is fitted with a limiting ring 2171.

[0028] In this embodiment, the push-pull cylinder 212 and the upper and lower cylinders 215 drive the inverted L-shaped push-pull plate 217 to perform lifting and pushing actions, pushing the material box from the feeding conveyor belt mechanism 2 to the drill bit picking conveyor belt mechanism 4, or pulling the material box from the drill bit picking conveyor belt mechanism 4 to the unloading conveyor belt mechanism 3.

[0029] like Figure 3As shown, the material box positioning mechanism 41 may include two positioning support plates 42, a lifting cylinder 43, a lifting plate 431, a positioning cylinder 44, a first positioning block 441, a second positioning block 442, an abutment cylinder 45, a first abutment block 451, a second abutment block 452, a blocking cylinder 46, and a side blocking block 461. The two positioning support plates 42 are arranged side by side below the two spaced conveyor lines of the drill bit conveyor belt mechanism 4. The lifting plate 431 is vertically and upwardly mounted on the left positioning support plate 42 via the lifting cylinder 43. The side blocking block 461 is in the shape of an inverted L. The structure is designed to be raised and lowered on the right-side positioning support plate 42 via a blocking cylinder 46. The positioning cylinder 44 and the abutting cylinder 45 are fixed sequentially on the outer side of the conveyor line and are respectively located above the lifting cylinder 43 and the blocking cylinder 46. The first positioning block 441 is drivenly connected to the output shaft of the positioning cylinder 44, and the first abutting block 451 is drivenly connected to the output shaft of the abutting cylinder 45. The second positioning block 442 and the second abutting block 452 are respectively fixed to the outer side of the conveyor line facing each other with their respective first positioning block 441 and first abutting block 451.

[0030] like Figure 4 As shown, the drill bit transfer mechanism 6 may include a Y-axis translation module 61 and an X-axis translation drive device 62. The Y-axis translation module 61 is installed on the top surface of the gantry 11 along the setting direction of the gantry 11, and the X-axis translation drive device 62 is installed on the translation part of the Y-axis translation module 61.

[0031] The Y-axis translation module 61 can be a commercially available linear drive module, and the X-axis translation drive device 62 can be a translation drive device structure composed of a combination of a motor, lead screw, and slide rail slider assembly. The structure can be referenced to the Z-axis lifting device 78 with a wire wheel. Of course, in other embodiments, the X-axis translation drive device 62 can also be a linear module, not limited to this embodiment.

[0032] like Figures 5 to 7As shown, the drill bit retrieval robot 5 may include a drill bit retrieval Z-axis lifting device 51, a stand 52, a clamping cylinder 53, a clamping cylinder mounting plate 531, a wedge-shaped adapter block 534, a spring 535, a side plate 536, a rotating shaft 537, a drill bit clamping component, and a transmission wheel 539. The drill bit retrieval Z-axis lifting device 51 is installed downwards at the output position of the X-axis translation drive device 62. The two sides of the clamping cylinder mounting plate 531 are horizontally installed below the output position of the drill bit retrieval Z-axis lifting device 51 via the stand 52. The clamping cylinder 53 is fixed downwards. The top surface of the clamping cylinder mounting plate 531 and the top surface of the wedge-shaped adapter block 534 are connected to the output shaft of the clamping cylinder 53 passing through the clamping cylinder mounting plate 531. The longitudinal section of the wedge-shaped adapter block 534 is set in an inverted isosceles trapezoid. The side plates 536 are fixedly connected to both ends of the clamping cylinder mounting plate 531. The middle part of the side plate 536 is provided with a groove for sliding connection of the protrusions at both ends of the wedge-shaped adapter block 534. Two spring pieces 535 are provided and fixedly connected to the inclined surfaces on both sides of the wedge-shaped adapter block 534 in a V-shape.

[0033] like Figure 8 As shown, further, the drill bit clamping components are provided in several groups. Each group of drill bit clamping components includes a spring 502 and two opposing jaws 501. The springs 502 are fixedly inserted into the opposing through holes 5012 at the lower part of each group of jaws 501. The rotating shaft 537 is provided with two shafts that pass through the side plate 536 on one side and the middle of the jaws 501 arranged side by side on both sides, and are fixedly connected to the side plate 536 on the other side. The bottom end of each jaw 501 is provided with a contour groove 5011 for cooperating with the corresponding jaw 501 to achieve positioning and clamping of the drill bit. The top of each jaw 501 is fixedly provided with a transmission wheel 539. Two spring plates 535 are located between the transmission wheels 539 arranged side by side on both sides and their outer walls abut against the wheel walls of the corresponding transmission wheels 539 on the same side.

[0034] When the clamping cylinder 53 drives the wedge-shaped adapter block 534 to descend, the two spring pieces 535 move downward between the two rows of transmission wheels 539 respectively, forcing the transmission wheels 539 to drive the upper end of each gripper 501 to move inward around the rotating shaft 537, while forcing the lower end of each gripper 501 to open outward.

[0035] In this embodiment, the contour grooves 5011 are all set as V-grooves or semi-circular grooves, which can effectively realize the positioning and clamping with the corresponding drill bit, and ensure the stability during the clamping process; the spring 502 provides a reset function to ensure that the gripper 501 can quickly return to its original position when released; the stroke of the clamping cylinder 53 is adjustable, and the opening width of the drill bit clamping part can be adjusted according to different sizes of drill bits or requirements, which is highly flexible.

[0036] Furthermore, the Z-axis lifting device 51 for retrieving drill bits may include a slide cylinder 511, a slide cylinder mounting plate 512, a hydraulic damper 513, and a collision avoidance block 514. The slide cylinder 511 is vertically mounted on the output part of the X-axis translation drive device 62 via the slide cylinder mounting plate 512. The hydraulic damper 513 is mounted on both sides of the lower part of the slide cylinder mounting plate 512 with support blocks facing upwards. The collision avoidance block 514 is fixedly mounted on the upper part of the cylinder body of the slide cylinder 511, with its protruding part facing the hydraulic damper 513. The cooperation between the hydraulic damper 513 and the collision avoidance block 514 is to ensure that the slide cylinder 511 descends without deviation, maintain the positional accuracy of the PCB drill bit, and prevent the drill bit from colliding with the housing and breaking.

[0037] like Figure 9 and Figure 10 As shown, the drill bit cleaning mechanism 7 may include a base plate 71, a first support 72, a second support 73, a first fine wire wheel 74, a second fine wire wheel 75, a wire wheel rotation drive device 76, a wire wheel opening and closing drive device 77, a wire wheel Z-axis lifting device 78, a dust collection box 79, and a dust cover 791. The base plate 71 is horizontally arranged at the lifting part of the wire wheel Z-axis lifting device 78. The wire wheel opening and closing drive device 77 is arranged on the base plate 71. The first support 72 and the second support 73 are both slidably connected to the output part of the wire wheel opening and closing drive device 77 through a slide rail slider assembly. The first fine wire wheel 74 is rotatably mounted on the top of the first support 72 along the X-axis direction. The second fine wire wheel 75 is parallel to the first support 72 and rotatably mounted on the top of the second support 73. Two wire wheel rotation drive devices 76 are provided and respectively mounted on the first support 72 and the second support 73. One end of the first fine wire wheel 74 and the second fine wire wheel 75 are respectively connected to their respective wire wheel rotation drive devices 76 and drive them to rotate. The wire wheel opening and closing drive device 77 can drive the first fine wire wheel 74 and the second fine wire wheel 75 to move closer to each other or further away from each other.

[0038] Preferably, the dust collection box 79 is disposed between the first support 72 and the second support 73 and below the first fine steel wire wheel 74 and the second fine steel wire wheel 75. The top of the dust cover 791 has a through groove, and the dust cover 791 covers the opening and closing drive device 77 of the steel wire wheel (e.g., Figure 14 (as shown) and make the opening of its through groove directly above the space between the first fine wire wheel 74 and the second fine wire wheel 75.

[0039] The top opening width of the dust collection box 79 is greater than the maximum stroke width of the first fine steel wire wheel 74 and the second fine steel wire wheel 75. A dust collection interface 790 connected to the vacuum cleaner via an external exhaust pipe is provided on one side of the dust collection box 79. The function of the dust collection box 79 and the dust cover 791 is to collect the brushed-off micro-dust in one place, making it easy to clean and preventing debris from flying, thus maintaining a clean working environment.

[0040] Specifically, each of the steel wire wheel rotation drive devices 76 may include a rotation drive motor 761, a first circular pulley 762, a second circular pulley 763, a circular belt 764, and a circular belt tensioner 765. The rotation drive motor 761 is respectively installed on the lower part of the inner sidewall of the first support 72 and the second support 73. The first circular pulley 762 is connected to the output shaft of the rotation drive motor 761 that extends out of the outer wall of the first support 72 and the second support 73. The second circular pulley is rotatably connected to one end of the first fine steel wire wheel 74 and the second fine steel wire wheel 75 that extend out of the first support 72 and the second support 73, respectively. The circular belt 764 is respectively sleeved between the first circular pulley 762 and the second circular pulley 763. The circular belt tensioner 765 is rotatably installed on the outer wall of the first support 72 and the second support 73 through an adjusting block and abuts against its corresponding circular belt 764.

[0041] like Figure 11 As shown, the wire wheel opening and closing drive device 77 may include an opening and closing drive motor 771, a drive wheel 772, a driven wheel 773, a timing belt 774, a screw bearing seat 775, a forward and reverse screw 776, a first ball nut 777, and a second ball nut 778. The opening and closing drive motor 771 is fixedly mounted on the bottom of the base plate 71 via a fixing plate 770. The drive wheel 772 is connected to the output shaft of the opening and closing drive motor 771. The forward and reverse screw 776 is arranged along the X-axis direction and one end of it is rotatably mounted on the screw bearing seat 775. On the top surface of the base plate 71, one end of the forward and reverse lead screw extending out of the lead screw bearing seat 775 is fixedly connected to the driven wheel 773. The synchronous belt 774 is sleeved on the driving wheel 772 and the driven wheel 773. The middle part of the forward and reverse lead screw 776 is provided with a smooth rod part 7760. The first ball nut 777 and the second ball nut 778 are respectively threaded to the threaded parts on both sides of the forward and reverse lead screw 776. The bottom surfaces of the first support 72 and the second support 73 are fixedly connected to their respective first ball nut 777 and second ball nut 778 through nut sleeves.

[0042] Preferably, the Z-axis lifting device 78 of the wire wheel may include a Z-axis vertical plate 781, a Z-axis drive motor 782, a lifting screw 783, a screw support seat 784, a coupling 785, a lifting nut 786, and a connecting plate 787. The Z-axis drive motor 782 is fixedly installed on the lower front end of the Z-axis vertical plate 781. The two ends of the lifting screw 783 are rotatably and vertically installed on the front of the Z-axis vertical plate 781 through the screw support seat 784. The output shaft of the Z-axis drive motor 782 is connected to one end of the lifting screw 783 extending out of the screw support seat 784 through the coupling. The lifting nut 786 is sleeved on the lifting screw 783 and threadedly connected to it. The two sides of one side wall of the connecting plate 787 are slidably connected to the front of the Z-axis vertical plate 781 along the Z-axis direction through a slide rail slider assembly. The middle part of the connecting plate 787 is fixedly connected to the lifting nut 786 through a nut sleeve. The base plate 71 is horizontally fixed to the top of the connecting plate 787 through an L-shaped connecting block.

[0043] Furthermore, in this embodiment, both the first fine wire wheel 74 and the second fine wire wheel 75 are pressure-plate type fine stainless steel wire wheels. The wire wheel rotation drive device 76 drives the two to rotate rapidly in a double manner. The two sets of wire wheels rotate in opposite directions and downwards, which can reach the effective drilling length of the drill bit. The wire wheel Z-axis lifting device 78 drives the wire wheel to float up and down as a whole to meet the length of the drill bit chip removal groove. The downward pull action more effectively removes sticky dust and entangled cutting chips from the PCB drill bit cutting edge and chip removal groove.

[0044] The working principle of this embodiment is as follows:

[0045] like Figures 12 to 13 As shown, in specific implementation, the worker first arranges the material boxes 10 with their notches 101 facing away from the feeding direction of the feeding conveyor belt mechanism 2 along the width direction of the feeding conveyor belt mechanism 2. When the feeding conveyor belt mechanism 2 moves the first row of material boxes 10 to the discharge end, the inverted L-shaped push-pull plate 217 of the push box mechanism 21 descends and pushes the row of material boxes 10 onto the drill bit pick-up conveyor belt mechanism. The drill bit pick-up conveyor belt 4 drives it forward to the material box positioning mechanism 41. When the first material box 10 moves above the blocking cylinder 46 and the blocking cylinder 46 drives the side blocking block 461 to block the outer side of the material box 10, at the same time the abutting cylinder 45 drives the first abutting block 451 and cooperates with the first abutting block 452 to abut the material box 10.

[0046] like Figure 14As shown, next, the Y-axis translation module 61 drives the X-axis translation drive device 62 and the drill bit picking robot 5 to move above the material box 10 being abutted. The drill bit picking Z-axis lifting device 51 drives the clamping cylinder 53 to descend above one row of drill bits 102 in the material box 10. At this time, the clamping cylinder 53 drives the wedge-shaped transition block 534 to descend. The two spring plates 535 move downward between the two rows of transmission wheels 539 respectively, forcing the transmission wheels 539 to drive the upper end of each gripper 501 to move inward around the rotating shaft 537, while forcing the lower end of each gripper 501 to open outward, so that each drill bit 102 is located between the contour grooves 5011. Then, the clamping cylinder 53 rises while the grippers 501 clamp the corresponding drill bit 10. 2. Upper end; Next, the drill bit transfer mechanism 6 drives the gripper 501 to move above the drill bit cleaning mechanism 7. The drill bit Z-axis lifting device 51 drives it to descend and pass through the opening of the dust cover 791, so that the lower cutting edge of the drill bit 102 is inserted between the first fine steel wire wheel 74 and the second fine steel wire wheel 75. At this time, the rotation drive motor 761 drives the corresponding first fine steel wire wheel 74 and the second fine steel wire wheel 75 to rotate at high speed. Then, the opening and closing drive motor 771 drives the forward and reverse screw 776 to rotate and drive the first fine steel wire wheel 74 and the second fine steel wire wheel 75 to move closer to the middle. The Z-axis lifting device 78 of the steel wire wheel drives it to float up and down to clean the sticky dust and entangled cutting chips on the cutting edge of the drill bit 102.

[0047] After cleaning, the opening and closing drive motor 771 drives the forward and reverse screw 776 to rotate in the opposite direction and drive the first fine steel wire wheel 74 and the second fine steel wire wheel 75 to open outward. The drill bit Z-axis lifting device 51 drives the gripper 501 to rise and drives it back to the pick-up and place position through the drill bit transfer mechanism 6. The drill bit robot arm 5 picks up and places a row of drill bits into a box of drill bits, and the cleaning is completed.

[0048] Afterwards, the lifting cylinder 43 drives the lifting plate 431 to move upward, lifting the second material box 10 above the belts on both sides of the drill bit conveyor belt 4. The positioning cylinder 44 drives the first positioning block 441 and cooperates with the second positioning block 442 to position the second material box 10. After positioning, the blocking cylinder 46 descends and the abutment cylinder 45 retracts and releases the first material box 10. The first material box 10 is driven by the drill bit conveyor belt 4 to the feeding end of the unloading conveyor line 3.

[0049] Similarly, the inverted L-shaped push-pull plate 217 of the material box pulling mechanism 31 pulls the entire row of material boxes 10 onto the material unloading conveyor belt mechanism 3 for unloading. Finally, it is transferred to the downstream machine that is connected to the material unloading conveyor belt mechanism 3 for the next process.

[0050] In summary, this utility model can realize the automated loading and unloading and automatic positioning of the material box. By automatically gripping the drill bit with a drill bit picking robot, the cutting edge of the drill bit is inserted into the drill bit cleaning mechanism for automatic cleaning, thereby achieving the purpose of removing sticky dust and entangled cutting chips from the drill bit. The various mechanisms move in a coordinated manner, with a high degree of automation, replacing manual operation, and achieving high efficiency, which can meet the needs of large-scale production of enterprises.

[0051] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A drill bit cleaning machine, characterized in that: The system includes a frame (1), a gantry frame (11), a feeding conveyor belt mechanism (2), a discharging conveyor belt mechanism (3), a drill bit extraction conveyor belt mechanism (4) for connecting the feeding conveyor belt mechanism (2) and the discharging conveyor belt mechanism (3), a push box mechanism (21) for pushing the material box to the drill bit extraction conveyor belt mechanism (4), a material box positioning mechanism (41) for braking the material box on the drill bit extraction conveyor belt mechanism (4), a drill bit extraction manipulator (5) for taking out and transferring the drill bit from the material box, a drill bit transfer mechanism (6) for driving the drill bit extraction manipulator (5) to move back, forth, left, and right, a drill bit cleaning mechanism (7) for cleaning the drill bit, and a pull box mechanism (31) for pulling the material box to the discharging conveyor belt mechanism (3). The drill bit extraction conveyor belt mechanism (4) is set on the worktable of the frame (1) along the length direction of the frame (1). The discharge end of the feeding conveyor belt mechanism (2) is connected to the feed end of the drill bit extraction conveyor belt mechanism (4). The material ends are connected to each other. The pushing box mechanism (21) is set above the discharge end of the feeding conveyor belt mechanism (2). The material box positioning mechanism (41) is set on the drill bit conveyor belt mechanism (4) along the feeding conveying direction of the material box. The feeding end of the unloading conveyor belt mechanism (3) is connected to the discharge end of the drill bit conveyor belt mechanism (4). The pulling box mechanism (31) is set above the feeding end of the unloading conveyor belt mechanism (3). The gantry frame (11) is set on the feeding conveyor belt mechanism (2) and erected above the drill bit conveyor belt mechanism (4). The drill bit transfer mechanism (6) is set on the top of the gantry frame (11). The drill bit cleaning mechanism (7) is set on one side of the drill bit conveyor belt mechanism (4). The drill bit manipulator (5) is set at the output part of the drill bit transfer mechanism (6) and is driven by the drill bit transfer mechanism (6) to move back and forth above the drill bit conveyor belt mechanism (4) and the drill bit cleaning mechanism (7).

2. The drill bit cleaning machine according to claim 1, characterized in that: The drill bit cleaning mechanism (7) includes a base plate (71), a first support (72), a second support (73), a first fine wire wheel (74), a second fine wire wheel (75), a wire wheel rotation drive device (76), a wire wheel opening and closing drive device (77), a wire wheel Z-axis lifting device (78), a dust collection box (79), and a dust cover (791). The base plate (71) is horizontally positioned at the lifting part of the wire wheel Z-axis lifting device (78). The wire wheel opening and closing drive device (77) is positioned on the base plate (71). The first support (72) and the second support (73) are slidably connected to the output part of the wire wheel opening and closing drive device (77) via a slide rail slider assembly. The first fine wire wheel (74) is rotatably positioned on the top of the first support (72) along the X-axis direction. The second fine wire wheel (75) is parallel to the first support (72) and rotatably positioned on the second support (79). 3) At the top, the wire wheel rotation drive device (76) is provided in two and is respectively set on the first support (72) and the second support (73). One end of the first fine wire wheel (74) and the second fine wire wheel (75) are respectively connected to the corresponding wire wheel rotation drive device (76) and drive them to rotate. The wire wheel opening and closing drive device (77) can drive the first fine wire wheel (74) and the second fine wire wheel (75) to move closer to each other or further away from each other. The exhaust dust collection box (79) is set between the first support (72) and the second support (73) and located below the first fine wire wheel (74) and the second fine wire wheel (75). The top of the dust cover (791) is provided with a through groove. The dust cover (791) covers the wire wheel opening and closing drive device (77) and makes the opening of its through groove face the top between the first fine wire wheel (74) and the second fine wire wheel (75).

3. A drill bit cleaning machine according to claim 2, characterized in that: The wire wheel opening and closing drive device (77) includes an opening and closing drive motor (771), a drive wheel (772), a driven wheel (773), a synchronous belt (774), a screw bearing seat (775), a forward and reverse screw (776), a first ball nut (777), and a second ball nut (778). The opening and closing drive motor (771) is fixedly installed on the bottom of the base plate (71) through a fixing plate (770). The drive wheel (772) is connected to the output shaft of the opening and closing drive motor (771) through the fixing plate (770). The forward and reverse screw (776) is arranged along the X-axis and one end of it is rotatably connected through the screw bearing seat (775). Installed on the top surface of the base plate (71), the end of the forward and reverse screw extending out of the screw bearing seat (775) is fixedly connected to the driven wheel (773), the synchronous belt (774) is sleeved on the driving wheel (772) and the driven wheel (773), the middle part of the forward and reverse screw (776) is provided with a smooth rod part (7760), the first ball nut (777) and the second ball nut (778) are respectively threaded to the threaded parts on both sides of the forward and reverse screw (776), and the bottom surfaces of the first support (72) and the second support (73) are fixedly connected to their respective first ball nut (777) and second ball nut (778) through nut sleeves; Each of the steel wire wheel rotation drive devices (76) includes a rotation drive motor (761), a first circular pulley (762), a second circular pulley (763), a circular belt (764), and a circular belt tensioner (765). The rotation drive motor (761) is respectively installed on the lower inner sidewall of the first support (72) and the second support (73). The first circular pulley (762) drives the output shaft of the rotation drive motor (761) which extends out of the outer wall of the first support (72) and the second support (73). The second circular pulley is rotatably connected to one end of the first fine steel wire pulley (74) and the second fine steel wire pulley (75) that extends out of the first support (72) and the second support (73), respectively. The circular belt (764) is respectively sleeved between the first circular pulley (762) and the second circular pulley (763). The circular belt tensioning pulley (765) is rotatably mounted on the outer wall of the first support (72) and the second support (73) through the adjusting block and abuts against the corresponding circular belt (764).

4. A drill bit cleaning machine according to claim 2, characterized in that: The Z-axis lifting device (78) of the wire wheel includes a Z-axis vertical plate (781), a Z-axis drive motor (782), a lifting screw (783), a screw support seat (784), a coupling (785), a lifting nut (786), and a connecting plate (787). The Z-axis drive motor (782) is fixedly installed on the lower front end of the Z-axis vertical plate (781). The two ends of the lifting screw (783) are rotatably and vertically installed on the front of the Z-axis vertical plate (781) through the screw support seat (784). The output shaft is connected to the end of the lifting screw (783) extending from the screw support seat (784) via a coupling. The lifting nut (786) is sleeved on the lifting screw (783) and threadedly connected to it. The two sides of one side wall of the connecting plate (787) are slidably connected to the front of the Z-axis vertical plate (781) along the Z-axis direction via a slide rail slider assembly. The middle part of the connecting plate (787) is fixedly connected to the lifting nut (786) via a nut sleeve. The base plate (71) is horizontally fixed to the top of the connecting plate (787) via an L-shaped connecting block.

5. A drill bit cleaning machine according to claim 1, characterized in that: The drill bit transfer mechanism (6) includes a Y-axis translation module (61) and an X-axis translation drive device (62). The Y-axis translation module (61) is installed on the top surface of the gantry (11) along the setting direction of the gantry (11), and the X-axis translation drive device (62) is installed on the translation part of the Y-axis translation module (61).

6. A drill bit cleaning machine according to claim 5, characterized in that: The drill bit retrieval robot (5) includes a drill bit Z-axis lifting device (51), a stand (52), a clamping cylinder (53), a clamping cylinder mounting plate (531), a wedge-shaped adapter block (534), a spring (535), a side plate (536), a rotating shaft (537), a drill bit clamping component, and a transmission wheel (539). The drill bit Z-axis lifting device (51) is installed downwards at the output part of the X-axis translation drive device (62). The clamping cylinder mounting plate (531) is horizontally mounted on both sides of the drill bit retrieval robot via the stand (52). Below the output section of the Z-axis lifting device (51), the clamping cylinder (53) is fixed downwards on the top surface of the clamping cylinder mounting plate (531). The top surface of the wedge-shaped adapter block (534) is connected to the output shaft of the clamping cylinder (53) through the clamping cylinder mounting plate (531). The longitudinal section of the wedge-shaped adapter block (534) is an inverted isosceles trapezoid. The side plates (536) are fixedly connected to both ends of the clamping cylinder mounting plate (531). A wedge-shaped adapter is provided in the middle of the side plate (536). The connecting block (534) has protruding protrusions at both ends that slide into grooves. The spring sheet (535) has two pieces and is fixedly connected in a V-shape to the inclined surfaces on both sides of the wedge-shaped adapter block (534). The drill bit holder has several sets, each set of drill bit holders including a spring (502) and two opposing jaws (501). The spring (502) is fixedly inserted into the opposing through holes (5012) at the bottom of each set of jaws (501). The rotating shaft (537) has two shafts that pass through one side of the side. The middle part of the side plate (536) and the clamps (501) arranged side by side are fixedly connected to the side plate (536) on the other side. Each clamp (501) has a contour groove (5011) at the bottom end for cooperating with the corresponding clamp (501) to achieve positioning and clamping of the drill bit. Each clamp (501) has a transmission wheel (539) fixedly installed on the top. Two spring pieces (535) are located between the transmission wheels (539) arranged side by side on both sides and their outer walls abut against the wheel walls of the corresponding transmission wheels (539) on the same side.

7. A drill bit cleaning machine according to claim 6, characterized in that: The Z-axis lifting device (51) for drilling bits includes a slide cylinder (511), a slide cylinder mounting plate (512), a hydraulic buffer (513), and a collision block (514). The slide cylinder (511) is vertically mounted on the output part of the X-axis translation drive device (62) via the slide cylinder mounting plate (512). The hydraulic buffer (513) is mounted on both sides of the lower part of the slide cylinder mounting plate (512) with the support blocks facing upwards. The collision block (514) is fixedly mounted on the upper part of the cylinder body of the slide cylinder (511) and its protruding part faces the hydraulic buffer (513).

8. A drill bit cleaning machine according to claim 1, characterized in that: The push-box mechanism (21) and pull-box mechanism (31) have the same structure and both include a mounting frame (211), a push-pull cylinder (212), a push-pull mounting plate (213), an upper and lower cylinder (215), an upper and lower cylinder mounting plate (216), an inverted L-shaped push-pull plate (217), a guide rod (218), a guide sleeve (219), and a limiting ring (2171). The mounting frame (211) is respectively mounted on the discharge end of the feeding conveyor belt mechanism (2) and the feeding end of the unloading conveyor belt mechanism (3). The push-pull mounting plate (213) is vertically set at the top end of the mounting frame (211) near the top of the drill bit extraction conveyor belt mechanism (4). The push-pull material cylinder (212) is fixedly mounted on the mounting frame (211). The output shaft of the push-pull material cylinder (212) extends out of the push-pull mounting plate (213) and is connected to the back of the upper and lower cylinder mounting plate (216) for transmission. The upper and lower cylinders (215) are mounted downwards on the upper and lower cylinder mounting plate (216). There are two guide rods (218), and one end of each guide rod is fixedly connected to the two sides of the upper and lower cylinder mounting plate (216). The other end of the guide rod (218) passes through the guide sleeve (219) inserted on the push-pull mounting plate (213). The other end of the guide rod (218) is fitted with a limiting ring (2171).

9. A drill bit cleaning machine according to claim 1, characterized in that: The material box positioning mechanism (41) includes two positioning support plates (42), a lifting cylinder (43), a lifting plate (431), a positioning cylinder (44), a first positioning block (441), a second positioning block (442), an abutment cylinder (45), a first abutment block (451), a second abutment block (452), a blocking cylinder (46), and a side blocking block (461). The two positioning support plates (42) are arranged side by side below the two spaced conveyor lines of the drill bit conveyor belt mechanism (4). The lifting plate (431) is raised and lowered on the left positioning support plate (42) by the lifting cylinder (43). The side blocking block (461) is in the opposite L-shape. The structure is arranged and can be raised and lowered on the right positioning support plate (42) by the blocking cylinder (46). The positioning cylinder (44) and the abutting cylinder (45) are fixed in sequence on the side of the conveyor line facing outward and are respectively located above the lifting cylinder (43) and the blocking cylinder (46). The first positioning block (441) is driven to the output shaft of the positioning cylinder (44). The first abutting block (451) is driven to the output shaft of the abutting cylinder (45). The second positioning block (442) and the second abutting block (452) are respectively fixed to the side of the outer conveyor line facing the first positioning block (441) and the first abutting block (451).

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