Micro-hole machining center with good chip absorption effect

Abstract

The present application relates to a kind of micro-hole machining center with good dust absorption effect, including base, be equipped with driving mechanism a on base and under the driving of driving mechanism a sliding table, base tail end is equipped with stand, be equipped with driving mechanism b on stand and under the driving of driving mechanism b sliding plate, sliding table is equipped with workbench, sliding plate is equipped with machining mechanism, machining mechanism includes drilling assembly and dust absorption component, the bottom of drilling assembly is equipped with pusher assembly, when drilling assembly is carried out drilling to workpiece placed on workbench, dust absorption component is cleaned to the chip generated, the up-down rotation of flap in dust absorption component is realized by pusher assembly, avoid chip back to fall into micro-hole, folding cover in pusher assembly continuously keep the sealing effect of micro-hole, the sealing effect of existing technology is not good enough, the problem that the dust absorption effect of the deeper micro-hole is not good enough is solved, residual is likely to cause, affect workpiece processing quality, still exist the problem of micro-hole blockage.

Description

A micro-hole machining center with good chip removal effect Technical Field

[0001] This invention relates to the field of machining center equipment technology, and specifically to a micro-hole machining center with good chip removal effect. Background Technology

[0002] Micro-hole machining centers are widely used in applications requiring small-diameter holes, such as filtration equipment, printed circuit boards, and aerospace gyroscope instrument components. During the drilling process, debris generated by the micro-hole machining center can easily remain inside the micro-holes, affecting subsequent processing and product quality. Current micro-hole machining centers typically use compressed air blowing or vacuum suction for chip removal. Compressed air blowing can easily blow debris onto the machining equipment, causing unnecessary damage. Vacuum suction can effectively remove debris, but when drilling deeper micro-holes, existing vacuum suction structures suffer from poor sealing due to the gap between the vacuum and the workpiece, failing to ensure complete cleaning of debris inside the micro-holes and leaving residue.

[0003] Chinese invention patent CN113600869B discloses a micro-hole machining center with a vacuum chip removal structure. The micro-hole machining center includes a turntable, on which a micro-hole motor with a micro-hole drill bit is mounted. The vacuum chip removal structure includes a chip removal hood, a venting piston, and a cylinder. The chip removal hood is slidably mounted on the turntable, and the venting piston is fixedly mounted on the turntable. The chip removal hood is composed of a hood body and a tube body. The hood body has a through hole in its center, which fits onto the micro-hole motor with a clearance fit. An opening in the side wall of the hood body connects to the tube body, which is parallel to the micro-hole motor and extends to the venting piston at its end. As the hood body moves, the hood body moves along with the micro-hole motor, and the tube body performs piston-like motion within the venting piston. The hood body covers the micro-hole drill bit. The venting piston is connected to an air extraction pipeline. By constructing a vacuum chip removal structure on the micro-hole machining center, the debris generated during drilling is removed using a vacuum suction method, preventing it from clogging the micro-holes.

[0004] Although its chip-collecting structure has a poor sealing effect, it cannot effectively collect chips from the inside of the micro-holes when the drill bit is drilling deeper micro-holes, which can easily cause residues and affect the subsequent processing of the workpiece and the quality of the finished product. There is still a risk of clogging the micro-holes. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a micro-hole machining center with good chip removal performance. The center includes a base, a drive mechanism a and a slide table driven by the drive mechanism a, a column at the rear end of the base, a drive mechanism b and a slide plate driven by the drive mechanism b, a worktable on the slide table, a machining mechanism on the slide plate, a drilling assembly and a dust collection assembly within the machining mechanism, and a pushing assembly at the bottom of the drilling assembly. This invention solves the problems of insufficient sealing of the chip removal structure in existing technologies, lack of effective chip removal for deeper micro-holes, easy residue buildup affecting subsequent workpiece machining quality, and persistent micro-hole clogging.

[0006] The technical solution of the present invention is as follows:

[0007] A micro-hole machining center with good chip removal effect includes a base, on which a drive mechanism a and a slide table driven by the drive mechanism a are arranged. A column is arranged at the tail end of the base, on which a drive mechanism b and a slide plate driven by the drive mechanism b are arranged. A worktable is arranged on the slide table, and a machining mechanism is arranged on the slide plate. The machining mechanism includes a drilling assembly and a dust collection assembly. A push assembly is arranged at the bottom of the drilling assembly. The drilling assembly is used to drill holes in workpieces placed on the worktable. The dust collection assembly, in conjunction with the push assembly, is used to clean up the chips generated by the drilling assembly.

[0008] As a preferred embodiment, the drilling assembly includes a cylinder mounted on a slide plate, a servo motor driven by the cylinder, and a spindle driven by the motor. A mounting base is provided at the front end of the spindle, and a drill bit is provided on the mounting base.

[0009] As a preferred embodiment, the drill bit has a plurality of threaded holes a arranged in a circumferential array in the middle, and an annular groove is provided at the bottom of the drill bit, with a plurality of rotating seats arranged in a circumferential array on the annular groove.

[0010] As a preferred embodiment, the dust collection assembly includes a dust collection hood fitted onto the drill bit, the dust collection hood having a threaded hole b corresponding to the threaded hole a, a fastening bolt being installed in the threaded hole b, and an air extraction pipe being fixedly connected to the dust collection hood.

[0011] As a preferred embodiment, the vacuuming assembly further includes a flap that is rotatably mounted on a rotating base. A folded cloth is fixedly connected to one side of the flap, and vertical plates are provided on both sides of the flap. A torsion spring connects the flap to the rotating base.

[0012] As a preferred embodiment, the dust collection hood has several discharge ports corresponding to the circumferential array of the flip plate. The bottom of each discharge port is provided with a slope, and a socket is fixedly provided on the discharge port. A discharge pipe is provided on the socket.

[0013] As a preferred embodiment, the push assembly includes a folded cover fixedly connected to the bottom of the dust hood. The folded cover is made of a flexible material, and a plurality of fixing blocks are arranged in a circumferential array at the bottom of the folded cover. A push rod is fixedly connected to the fixing blocks, and a ball is fixedly connected to the top of the push rod.

[0014] As another preferred embodiment, the base is provided with a blade disc.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention includes a dust collection component. The dust collection hood in the component is threadedly connected to the drill bit via fastening bolts, making installation and disassembly convenient. The dust collection component is equipped with a flap that is rotatably mounted on the rotating seat at the bottom of the drill bit. Folded cloths are connected between the flaps. When the flaps are not lifted, they can seal the inside of the dust collection hood, preventing residual debris from falling back into the micro-holes. When the drilling component descends to drill a hole in the workpiece, the flaps are lifted and flipped upwards by the push component below, and the debris in the micro-holes can be sucked away through the air extraction pipe. When the drilling component rises, the flaps reset, guiding the debris remaining in the dust collection hood through the discharge port into the discharge pipe for discharge. This effectively prevents residual debris in the dust collection hood from falling back into the micro-holes when dust collection is paused, thus avoiding blockage of the micro-holes and affecting processing quality.

[0017] 2. This invention includes a pusher assembly with a folding cover. When the drilling assembly descends to drill the workpiece, the folding cover fits tightly against the workpiece surface, providing a good sealing effect for the micropores. Combined with the dust collection assembly, it can achieve better dust collection inside the micropores, preventing debris from remaining inside. The folding cover is made of a flexible material that can be compressed during extrusion. When drilling deep holes, the drill bit moves up and down repeatedly. The folding cover continuously seals the micropores, ensuring better dust collection from the dust collection assembly. This solves the problem of insufficient sealing effect of the existing chip collection structure, lack of good chip collection effect for deeper micropores, easy residue, and thus affecting the subsequent processing quality of the workpiece, and the problem of clogging micropores.

[0018] In summary, the present invention has the advantages of providing a good sealing effect on micropores, better cleaning effect without leaving residue, good linkage effect between components, and simple structure, making it suitable for the field of machining center equipment technology. Attached Figure Description

[0019] The invention will be further described below with reference to the accompanying drawings:

[0020] Figure 1 is a schematic diagram of the structure of the micro-hole machining center with good chip removal effect;

[0021] Figure 2 is an enlarged view of point A in Figure 1;

[0022] Figure 3 is a schematic diagram of the location structure of the borehole structure;

[0023] Figure 4 is a structural schematic diagram of the vacuuming assembly and the push assembly;

[0024] Figure 5 is a schematic diagram showing the state in which the flip plate moves down synchronously when the drilling assembly descends to drill, causing the flip plate to flip upward under the action of the push assembly.

[0025] In the diagram: Base 1, Drive mechanism a2, Slide 3, Column 4, Drive mechanism b5, Slide plate 6, Worktable 7, Machining mechanism 8, Cutter head 9, Drilling assembly 81, Dust collection assembly 82, Push assembly 83, Cylinder 810, Servo motor 811, Spindle 812, Mounting base 813, Drill bit 814, Threaded hole a 815, Ring groove 816, Rotating seat 817, Dust collection hood 820, Threaded hole b 821, Fastening bolt 822, Air extraction pipe 823, Flip plate 824, Folded cloth 825, Vertical plate 826, Torsion spring 827, Discharge port 828, Ramp 829, Socket 8210, Drop pipe 8211, Folding cover 830, Fixing block 831, Push rod 832, Ball 833. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] Example 1

[0028] As shown in Figures 1 to 5, a micro-hole machining center with good chip removal effect includes a base 1, a drive mechanism a2 and a slide 3 driven by the drive mechanism a2 on the base 1, a column 4 at the tail end of the base 1, a drive mechanism b5 and a slide plate 6 driven by the drive mechanism b5 on the column 4, a worktable 7 on the slide 3, and a machining mechanism 8 on the slide plate 6. The machining mechanism 8 includes a drilling assembly 81 and a dust collection assembly 82. A push assembly 83 is provided at the bottom of the drilling assembly 81. The drilling assembly 81 is used to drill holes in the workpiece placed on the worktable 7. The dust collection assembly 82, together with the push assembly 83, is used to clean up the debris generated by the drilling assembly 81 during drilling. Both drive mechanisms a2 and b5 are composed of drive motors connected to synchronous belts and pulleys. Drive mechanism a2 drives the slide table 3 and the worktable 7 set on the slide table 3 to move. Drive mechanism b5 drives the slide plate 6 and the processing mechanism 8 set on the slide plate 6 to move. When the drilling assembly 81 drills the workpiece placed on the worktable 7, the dust collection assembly 82 cleans the debris drilled by the drilling assembly 81. When the drilling assembly 81 descends, the dust collection assembly 82 starts to collect the debris. When the drilling assembly 81 rises, the dust collection assembly 82 shuts down and stops collecting the debris. The flip plate 824 in the dust collection assembly 82 is rotated up and down by the push assembly 83 to prevent the debris from falling back into the micro-hole when the dust collection assembly 82 stops collecting the debris. The folding cover 830 in the push assembly 83 continuously maintains the sealing effect on the micro-hole. This solves the problem that the existing technology has insufficient sealing effect of the debris collection structure, lacks good debris collection effect for deeper micro-holes, and is prone to residue, which affects the subsequent processing quality of the workpiece and still has the problem of clogging the micro-hole.

[0029] As shown in Figures 1, 2, and 3, the drilling assembly 81 includes a cylinder 810 mounted on a slide plate 6, a servo motor 811 driven by the cylinder 810, and a spindle 812 driven by the motor 811. A mounting base 813 is located at the front end of the spindle 812, and a drill bit 814 is mounted on the mounting base 813. The cylinder 810 drives the servo motor 811 and the spindle 812 to move up and down, and the drill bit 814 mounted on the mounting base 813 drives the spindle 812 to drill holes in the workpiece.

[0030] As shown in Figures 2 and 3, the drill bit 814 has several threaded holes a815 arranged in a circular array in the middle, and an annular groove 816 is provided at the bottom of the drill bit 814. Several rotating seats 817 are arranged in a circular array on the annular groove 816. The size of the threaded hole a815 matches the size of the threaded hole b821 on the dust collection hood 820. The dust collection hood 820 and the drill bit 814 can be threadedly connected by the fastening bolt 822, so that the dust collection hood 820 can be easily installed and disassembled. The annular groove 816 allows the tail end of the flip plate 824 to rest on the annular groove 816 and be in a downward tilted state when it flips down to reset. This allows the debris collected by the flip plate 824 to automatically slide down to the discharge port 828 and be discharged through the discharge pipe 8211. At the same time, it also further enhances the sealing of the inside of the dust collection hood 820 by the flip plate 824. The rotating seats 817 allow the flip plate 824 to be installed and rotate up and down.

[0031] As shown in Figures 2, 3, 4 and 5, the dust collection assembly 82 includes a dust collection cover 820 sleeved on the drill bit 814. The dust collection cover 820 has a threaded hole b821 corresponding to the threaded hole a815. A fastening bolt 822 is installed in the threaded hole b821. An air extraction pipe 823 is fixedly connected to the dust collection cover 820. The dust hood 820 is threadedly connected to the drill bit 814 via fastening bolts 822, making installation and disassembly convenient. Flip plates 824, rotatably mounted on the rotating base 817 at the bottom of the drill bit 814, are arranged in a circular array. Folded cloths 825 connect each flip plate 824. When the flip plates 824 are flipped upwards, the folded cloths 825 can fold and retract to avoid interference between adjacent flip plates 824. When the flip plates 824 are not lifted, their dimensions match the interior of the dust hood 820, effectively sealing the interior and preventing residual debris from falling back onto the workpiece when the dust collection assembly 820 is paused. When the drilling assembly 81 descends to drill a hole in the workpiece, the flap 824 is lifted and flipped upward by the push assembly 83 below. The debris in the micro-hole can be sucked away through the air extraction pipe 823. When the drilling assembly 81 rises, the flap 824 resets and the debris remaining in the dust hood 820 is guided from the discharge port 828 to the discharge pipe 8211 for discharge. This effectively prevents the debris remaining in the dust hood 820 from falling back into the micro-hole when the dust extraction assembly 82 stops dust extraction, which would block the micro-hole and affect the processing quality. The air extraction pipe 823 is connected to a dust extraction device, which can perform dust extraction through the air extraction pipe 823.

[0032] As shown in Figures 4 and 5, the vacuuming assembly 82 also includes a flap 824 rotatably mounted on the rotating base 817. A folded cloth 825 is fixedly connected to one side of the flap 824, and vertical plates 826 are provided on both sides of the flap 824. A torsion spring 827 is connected between the flap 824 and the rotating base 817. The flaps 824, which are rotatably mounted on the rotating seat 817 at the bottom of the drill bit 814, are arranged in a circumferential array. Each flap 824 is connected to a folded cloth 825. When the flaps 824 are flipped upward, the folded cloth 825 can be folded and closed to avoid interference between adjacent flaps 824. When the flaps 824 are not lifted, their size matches the inside of the dust collection hood 820, which can seal the inside of the dust collection hood 820 and prevent residual debris in the dust collection hood 820 from falling back into the micropores on the workpiece when the dust collection assembly 82 stops dust collection. The vertical plate 826 can collect the debris on the flaps 824. When the flaps 824 are reset, they fall more smoothly from the discharge port 828 into the discharge pipe 8211. The torsion spring 827 can make the flaps 824 flip downward and reset after the push assembly 83 releases the push on the flaps 824, so that the debris collected on the flaps 824 can be guided into the discharge pipe 8211.

[0033] As shown in Figures 2 and 3, the dust collection hood 820 has several discharge ports 828 arranged in a circular array corresponding to the flip plate 824. The bottom of the discharge port 828 is provided with a ramp 829. A socket 8210 is fixedly installed on the discharge port 828. A discharge pipe 8211 is provided on the socket 8210. After the push assembly 83 releases the push on the flap 824, it flips downward and resets, guiding the debris received on the flap 824 into the discharge pipe 8211. After resetting, the tilt direction of the flap 824 is opposite to the discharge port 828, so that the debris sliding off the flap 824 falls more accurately into the discharge pipe 8211 through the discharge port 828. The bottom of the discharge port 828 is provided with a ramp 829, which can further enable the debris to fall into the discharge pipe 8211 faster and smoother. The discharge pipe 8211 can be inserted into the socket 8210 through the socket 8210. The discharge pipe 8211 is made of flexible material and has a certain degree of flexibility. The end of the discharge pipe 8211 is connected to a collection device to collect the debris.

[0034] As shown in Figures 4 and 5, the push assembly 83 includes a folded cover 830 fixedly connected to the bottom of the dust cover 820. The folded cover 830 is made of flexible material. Several fixing blocks 831 are arranged in a circular array at the bottom of the folded cover 830. A push rod 832 is fixedly connected to the fixing block 831. A ball 833 is fixedly connected to the top of the push rod 832. The folding cover 830 is fixedly connected to the bottom of the dust collection cover 820. When the drilling assembly 81 descends to drill the workpiece, the folding cover 830 first comes into close contact with the workpiece surface, which can provide a good sealing effect for the micropores when the drill bit 814 drills the workpiece. Combined with the dust collection assembly 82, it can more thoroughly clean the debris inside the micropores, preventing debris from remaining inside the micropores. The folding cover 830 is made of a flexible material and can be compressed under pressure. When the drilling assembly 81 drills a deep hole, the drill bit 814 will repeatedly move up and down to drill. When the drill bit 814 descends, the folding cover 830 is compressed; when the drill bit 814 rises, the folding cover 830 unfolds again. The folding cover 830 can continuously seal the micropores, ensuring better dust collection effect of the dust collection assembly 82. This solves the problem that the existing technology has insufficient sealing effect of the dust collection structure, lacks good dust collection effect for deep micropores, and is prone to damage. Residue remains, affecting the subsequent processing quality of the workpiece and still causing blockage of micropores. When the drilling assembly 81 descends, the push rod 832 on the folding cover 830 pushes the flap 824 upward from below, causing the flap 824 to flip upward and release the seal on the inside of the dust collection cover 820. A sensor is installed on the ball 833 at the top of the push rod 832, and the sensor is connected to the dust collection device. When the drilling assembly 81 descends and the flap 824 comes into contact with the push rod 832 and the ball 833, the sensor sends a signal to the dust collection device, causing the dust collection device to start sucking up and cleaning the debris generated by the drill bit 814 and the debris in the micropores. When the drilling assembly 81 drives the flap 824 to rise and gradually disengage from the push rod 832, the flap 824 can flip downward and reset under the action of the torsion spring 827, sealing the inside of the dust collection cover 820 again, and the dust collection device stops dust collection.

[0035] Example 2

[0036] As shown in Figure 1, the components that are the same as or corresponding to those in Embodiment 1 are referred to by the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 will be described below. The difference between Embodiment 2 and Embodiment 1 is that a cutter head 9 is provided on the base 1. By providing the cutter head 9 on the base 1, it is convenient to replace the cutter in a timely manner, saving processing time.

[0037] Work process

[0038] First, the workpiece is placed on the worktable 7. Then, the drive mechanism a2 moves the slide table 3 and the worktable 7 mounted on the slide table 3 to below the machining mechanism 8. The drive mechanism b5 moves the slide plate 6 and the machining mechanism 8 mounted on the slide plate 6 to the designated position. Then, the servo motor 811 is turned on to rotate the spindle 812 and the drill bit 814. Then, the cylinder 810 drives the drill bit 814 to descend and drill a hole in the workpiece. During the descent of the drill bit 814, the folding cover 830 first comes into close contact with the surface of the workpiece. When the drill bit 814 descends, the push rod 832 on the folding cover 830 pushes the flap 824 upward from below, causing the flap 824 to flip upward and release the dust collection cover 820. The internal enclosure is sealed, and a sensor on the ball 833 at the top of the push rod 832 sends a signal to the dust collection device, causing the dust collection device to start and suck up and clean the debris generated by the drill bit 814 and the debris in the micro-hole. When the drill bit 814 rises and drives the flap 824 to rise and gradually disengage from the push rod 832, the flap 824 flips down and resets under the action of the torsion spring 827, sealing the inside of the dust collection hood 820 again. At the same time, the dust collection device stops dust collection, and the debris remaining in the dust collection hood 820 falls onto the flap 824 and is discharged from the discharge port 828 into the discharge pipe 8211. Then the drill bit 814 repeats the up and down movement many times to complete the drilling.

[0039] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0040] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0041] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A micro-hole machining center with good chip removal effect, comprising a base (1), characterized in that, The base (1) is provided with a drive mechanism a (2) and a slide (3) driven by the drive mechanism a (2). The base (1) is provided with a column (4) at its tail end. The column (4) is provided with a drive mechanism b (5) and a slide (6) driven by the drive mechanism b (5). The slide (3) is provided with a worktable (7). The slide (6) is provided with a processing mechanism (8). The processing mechanism (8) includes a drilling assembly (81) and a dust collection assembly (82). The bottom of the drilling assembly (81) is provided with a push assembly (83). The drilling assembly (81) is used to drill holes in the workpiece placed on the worktable (7). The dust collection assembly (82) works in conjunction with the push assembly (83) to clean up the debris generated by the drilling assembly (81). The drilling assembly (81) includes components set on the slide (6). The cylinder (810), the servo motor (811) driven by the cylinder (810), and the spindle (812) driven by the motor (811) are provided with a mounting base (813) at the front end of the spindle (812) and a drill bit (814) on the mounting base (813); the dust collection assembly (82) includes a dust collection cover (820) sleeved on the drill bit (814); the push assembly (83) includes a folding cover (830) fixedly connected to the bottom of the dust collection cover (820), the folding cover (830) is made of flexible material, and a number of fixing blocks (831) are arranged in a circular array at the bottom of the folding cover (830), a push rod (832) is fixedly connected to the fixing block (831), and a ball (833) is fixedly connected to the top of the push rod (832); the base (1) is provided with a cutter disc (9).

2. The micro-hole machining center with good chip removal effect according to claim 1, characterized in that, The drill bit (814) has a plurality of threaded holes a (815) arranged in a circumferential array in the middle, and an annular groove (816) is provided at the bottom of the drill bit (814). A plurality of rotating seats (817) are arranged in a circumferential array on the annular groove (816).

3. The micro-hole machining center with good chip removal effect according to claim 2, characterized in that, The dust collection hood (820) has a threaded hole b (821) corresponding to the threaded hole a (815), and a fastening bolt (822) is provided in the threaded hole b (821). An air extraction pipe (823) is fixedly connected to the dust collection hood (820).

4. The micro-hole machining center with good chip removal effect according to claim 3, characterized in that, The vacuuming assembly (82) also includes a flap (824) rotatably mounted on a rotating base (817). A folded cloth (825) is fixedly connected to one side of the flap (824), and vertical plates (826) are provided on both sides of the flap (824). A torsion spring (827) is connected between the flap (824) and the rotating base (817).

5. A micro-hole machining center with good chip removal effect according to claim 4, characterized in that, The dust collection hood (820) has several discharge ports (828) arranged in a circular array corresponding to the flap (824). The bottom of the discharge port (828) is provided with a ramp (829). An socket (8210) is fixedly provided on the discharge port (828). A discharge pipe (8211) is provided on the socket (8210).

Images