A drilling equipment for automobile rubber and plastic products and a processing method thereof

Abstract

The application discloses a kind of automobile rubber and plastic product drilling processing equipment and processing method thereof, belong to laser cutting processing equipment technical field, this automobile rubber and plastic product drilling processing equipment, including rack, bearing frame, drive module and laser, bearing frame top is equipped with raw material and drives the raw material lifting movement, the drive module drives laser to be translated in horizontal direction, the laser can generate vertical downward laser beam.The application is processed by the setting of laser and angle adjusting frame, and vertical through hole can be processed vertically by laser, the end bar between contact head and raw material is extruded on the surface of raw material by making laser inclined by angle adjusting frame, and the end bar extruded raw material makes the edge of through hole slightly concave, the extension line of the end bar extruding raw material intersects with through hole axis, and laser translation and rotation can ensure that raw material is at a stable angle, to complete efficient chamfering.

Description

A drilling equipment and processing method for automotive rubber and plastic products Technical Field

[0001] This invention belongs to the field of laser cutting processing equipment technology, specifically relating to a drilling processing equipment and processing method for automotive rubber and plastic products. Background Technology

[0002] Automotive rubber and plastic products are a category of automotive components, such as sound insulation pads (sheet rubber parts used to reduce noise inside the vehicle, usually installed on the inside of the body panel), sealing gaskets (used to seal body seams or cover screws and fixing points), and dashboard gaskets (used to fix the dashboard or interior parts), etc.

[0003] In actual production, these rubber and plastic products need to be drilled and cut from whole sheets of raw material so that they can be installed onto the body sheet metal with fasteners. When drilling and cutting, if a laser cutting machine is used for drilling and cutting, the through holes of the resulting gasket blanks are cylindrical. However, some gaskets require countersunk installation with fasteners such as bolts and rivets. That is, the head of the fastener needs to enter the hole to make the gasket surface flat. If the preload is directly increased to deform the gasket to complete the countersunk hole fixation, it will cause excessive pressure on the gasket opening and make it prone to cracking during long-term use. Chamfering these through holes requires the existing chamfering process to feed the whole sheet of raw material back into the chamfering equipment for chamfering. The material transfer station and secondary positioning process will slow down the processing efficiency. In view of this, a drilling processing equipment and processing method for automotive rubber and plastic products is provided. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a drilling equipment and processing method for automotive rubber and plastic products.

[0005] The technical solution adopted to solve the above technical problems is:

[0006] A drilling and processing equipment for automotive rubber and plastic products includes a frame, a support frame, a drive module, and a laser. The support frame has a raw material on top and drives the raw material to move up and down. The drive module drives the laser to move horizontally. The laser can generate a vertically downward laser beam.

[0007] The laser includes a laser generator, and a sleeve is installed at the laser generator's output port. An inner tube 1 and an inner tube 2 are coaxially sleeved inside the sleeve. The inner tube 2 allows the laser to pass through and allows gas to continuously enter. A contact head is installed at the lower end of the inner tube, and an end strip is movably installed at the bottom opening of the contact head.

[0008] It also includes an angle adjustment bracket installed between the drive module and the laser. The drive module drives the laser to translate through the angle adjustment bracket, and the angle adjustment bracket drives the laser to swing from a vertical state to a top-tilted state.

[0009] During the processing of automotive rubber and plastic gaskets, to create a gasket blank with through holes from the raw material, the laser is held vertically. Then, driven by the drive module, the laser moves horizontally, creating a round or oblong hole that penetrates the main body. Because the laser is continuously supplied with air, a continuous downward airflow is generated in the inner tube, rapidly cooling the through hole and blowing the waste material out of the hole, achieving immediate waste removal. This removes heat from the inner tube, ensuring the laser's temperature remains controllable during long-term operation. To facilitate the installation of fasteners such as rivets and bolts, the laser is tilted further. The upper edge of the through hole is cut, and chamfering is performed to obtain chamfered waste. During the process, the laser contacts the material and the end bar swings to squeeze the material downward, so that the material is at a stable angle when it is chamfered. The squeezing of the end bar can also reduce the tilt angle of the laser and ensure that the position of the laser is relatively stable. Finally, when the laser moves upward and returns to the vertical position, the end bar extends downward to reduce the inner diameter of the bottom opening of the contact head. This can accelerate the airflow blown towards the through hole by reducing the diameter, so as to prevent the opening waste or chamfered waste from sticking to the inner wall of the through hole or the chamfer position, and ensure the neatness of the through hole position.

[0010] Furthermore, an air inlet pipe is installed through the side wall of the sleeve, and an air supply channel is formed between the inner wall of the sleeve and the outer wall of the inner tube. An air passage is opened on the second circumferential side wall of the inner tube.

[0011] The above technical solution provides a specific configuration for downward air output of the laser. The air inlet pipe introduces purified air or inert gas into the sleeve. The gas rises along the outer wall of inner tube one, passes the top of inner tube one, and enters inner tube two. Finally, it descends along inner tube two and is ejected from the bottom. During the process, some of the gas in inner tube two absorbs heat and expands. This gas enters the interlayer between inner tube one and inner tube two through the air passage, transferring some heat to inner tube one. The large contact area between inner tube one and the airflow provides additional heat dissipation, achieving efficient cooling.

[0012] Furthermore, a top ring is installed on the top of the inner tube two, and a bottom ring is provided at the bottom opening of the inner tube one. Both the top ring and the bottom ring are screwed to the inner wall of the inner tube one by threads. An air suction pipe is installed through the side wall of the contact head. The inner wall of the contact head and the outer wall of the inner tube two form an air suction channel. A side opening is provided on the side wall of the contact head.

[0013] To ensure the cleanliness of the cutting area, the above technical solution involves purging the air outlet while simultaneously drawing in air through the suction pipe. This creates a negative pressure space in the suction channel, attracting and concentrating the raw material particles carried by the upward airflow. The side openings face outwards to increase the suction coverage area, allowing for the immediate collection of the fumes generated below. This prevents the fumes from solidifying on the surface of the raw material, which would otherwise result in an uneven surface on the finished product.

[0014] Furthermore, the bottom end of the contact head is provided with an installation groove, the middle part of the end strip is provided with a straight groove hole, a rectangular block is slidably installed in the straight groove hole, an adapter frame is installed between the rectangular blocks, the rectangular blocks are rotatably installed in the installation groove by the column head, the lower end of the end strip is provided with a counterweight head, an elastic element is installed between the top end of the end strip and the contact head, and a spring piece is installed between the adapter frame and the contact head.

[0015] The above technical solution provides a specific configuration for realizing the rotation and sliding of the end strip. The straight groove hole in the middle of the end strip has a horizontal inner wall. The rectangular block allows the end strip to slide up and down relative to the contact head. The elastic element can deform and keep the end strip at the lower stop position of the extension. It is only squeezed upward when in contact with the material. At the same time, because the rectangular block is rotatably installed with the contact head through the column head, the upper part of the end strip can swing downward when under pressure, reducing the angle with the material. The end strip squeezes the material at a small angle with the horizontal plane, causing a slight concavity at the edge of the through hole. With the laser slightly tilted downward, the tilt of the material plus the tilt of the laser can perform a larger angle chamfering. During the rotation of the laser, the drive module will drive the laser to draw a circle around the axis of the through hole, ensuring that the extension line of the end strip that squeezes the material intersects the axis of the through hole, that is, it always passes through the center of the through hole. This continuous pressure on the material at a fixed angle ensures that the chamfered position of the material can be kept at a consistent angle, ensuring the quality of the chamfering process.

[0016] Furthermore, the contact head is in a vertical position and has a through hole in the main body of the raw material. When the contact head is tilted, it can cut a chamfered waste material at the top edge of the through hole. When the contact head is tilted, the end strip that is not in contact with the raw material will push the opened waste material out of the through hole.

[0017] With the above technical solution, during the hole-making process, the contact head is vertical and does not contact the raw material, ensuring that the end strip hangs vertically downwards. At this time, it completes the function of converging the air outlet. During the chamfering process, the tilt of the contact head, combined with the tilt of the raw material, can cut out a chamfered waste material with a triangular cross-section along the through hole, so as to facilitate the countersunk installation of fasteners such as bolts. At this time, only the end strip between the contact head and the raw material is in a shortened state, while the end strip above the contact head is in an extended state and is inserted into the through hole from top to bottom. Before chamfering, the hole-making waste material can be pushed downward out of the through hole, so that the gradually generated chamfered waste material can fall downward smoothly, avoiding waste material remaining at the hole position and causing subsequent adhesion problems.

[0018] Furthermore, the lower part of the outer wall of the sleeve is provided with a threaded groove, and the sleeve is designed with a notch at the position where the threaded groove is opened. A locking sleeve is screwed onto the lower part of the sleeve through the threaded groove. The locking sleeve can squeeze the lower part of the sleeve and the inner tube tightly together when screwed on.

[0019] Through the above technical solution, because laser cutting has a focal length problem, the distance from a vertically suspended laser to the raw material is greater than the distance from a laser that is tilted and in contact with the raw material. Therefore, when chamfering, the laser needs to be lengthened to ensure that the distance from the laser to the raw material is reasonable. During adjustment, the locking sleeve can be rotated downward along the threaded groove at the bottom of the sleeve. At this time, the inner edge of the locking sleeve disengages from the lower edge of the sleeve, allowing the inner tube to be pulled down. After adjustment, the locking sleeve is rotated upward, and the inner edge of the locking sleeve contacts the lower edge of the sleeve. Because the inner edge of the locking sleeve uses a tapered hole that is thicker at the top and thinner at the bottom, when the locking sleeve is rotated upward, the lower part of the sleeve will be squeezed towards the inner tube. The notch ensures that the lower part of the sleeve can be squeezed with a small deformation, so that the lower part of the sleeve and the inner tube are squeezed together, completing the fixation after adjustment.

[0020] Furthermore, the angle adjustment frame includes a connecting seat, a rotator, and a swinging device. The connecting seat and the rotator are connected by a middle frame. The swinging device is fixedly installed on the top of the middle frame. The laser swings under the drive of the swinging device. The rotator can drive the laser to rotate under the limit of the middle frame.

[0021] The above technical solution discloses a specific configuration of an angle adjustment frame. The lower part of the connecting seat is provided with a slider, which can slide horizontally left and right under the guidance and drive of the drive module, thereby driving the rotator to slide left and right. The rotator can drive the swing device and the laser to rotate synchronously. In conjunction with the drive module, the laser is driven to draw a circle around the axis of the through hole, ensuring that the extension line of the end strip that extrudes the raw material intersects with the axis of the through hole. The swing device can drive the laser to tilt, which can be used for chamfering of the raw material.

[0022] Furthermore, the middle section of the frame is provided with a clearance opening, in which the laser can swing freely. The end of the frame is provided with a gear ring. The frame and the connecting seat are connected by a rotator. A servo motor that meshes with the gear ring is installed on the frame above the connecting seat.

[0023] The above technical solution discloses a specific configuration for driving the laser rotation. The servo motor drives the central frame to rotate through meshing with the gear ring. The central frame is horizontally arranged in the middle. During rotation, the rotation centerline of the central frame is aligned with the axis of the through hole, which can drive the laser to rotate. The setting of the clearance opening can avoid affecting the oscillation of the laser.

[0024] Furthermore, the oscillator is provided with a limiting port, in which a sliding member is installed. The laser is fixedly installed in the sliding member. The outer wall of the oscillator is provided with a toothed groove, and the sliding member is provided with a corresponding stepper motor at the position of the toothed groove.

[0025] Through the above technical solution, a specific configuration is disclosed to realize the oscillation drive of the laser. The oscillator is an arc segment cut out from a circular ring. The center of the oscillator is located at a distance from the lower end of the laser and coincides with the focal point of the laser. In this way, when the laser oscillates, it rotates around the focal point of the laser, which can facilitate focusing. The sliding member is slidably installed in the limiting port. The sliding member slides under the guidance of the oscillator, and the stepper motor completes the oscillation drive through gear meshing with the tooth groove.

[0026] Furthermore, the support frame includes an upward-opening cover, with side-by-side support plates installed on the upper part of the cover, a negative pressure device connected to the lower part of the cover, a connecting pipe between the cover and the negative pressure device, a waste collection trough at the lowest point of the cover, and a lifting assembly installed between the cover and the frame.

[0027] The above technical solution discloses a specific support structure. The cover has an upward-facing rectangular opening to facilitate the support of rectangular raw materials. A support plate is installed in the opening, which suspends the raw materials. To prevent the raw materials from being compressed and dented due to the support plate, the support plate can slide left and right. While suspending and supporting the raw materials, it avoids the area directly below the opening. The negative pressure device keeps the cover under negative pressure, and the friction of the support plate prevents the raw materials from being dragged and slipping when chamfering. A perforated plate is provided at the connection between the connecting pipe and the cover to prevent waste from entering the negative pressure device, allowing the waste to accumulate in the waste collection tank. A movable door is provided at the bottom of the waste collection tank, which can be opened for waste discharge. The lifting component can move the cover up and down to provide sufficient space for adjusting the length and angle of the laser and loading and unloading raw materials.

[0028] A method for drilling holes in automotive rubber and plastic products includes the following steps:

[0029] S1. Place the raw material on the top of the support frame, drive the module to move the laser horizontally, and process a vertical through hole in the raw material through the laser beam;

[0030] S2. When the laser is not in contact with the raw material, the end bar extends downward to reduce the inner diameter of the bottom opening of the contact head. Gas continuously enters the inner tube and is ejected from the bottom, generating an airflow that blows towards the raw material.

[0031] S3. The angle adjustment frame drives the laser to swing from a vertical position to a top-tilted position. The support frame drives the raw material to contact the tilted laser. The end strip located below the contact head squeezes the raw material downward. The laser rotates around the axis of the through hole and performs chamfering processing on the upper edge of the through hole through the laser beam.

[0032] The beneficial effects of this invention are as follows:

[0033] (1) The present invention uses a laser and an angle adjustment frame. The laser can be vertically processed to form a vertical through hole. The laser is tilted by the angle adjustment frame. The end strip between the contact head and the material is pressed against the upper surface of the material. The end strip presses the material to make the edge of the through hole slightly concave. The extension line of the end strip that presses the material intersects the axis of the through hole. The translation and rotation of the laser can ensure that the material is at a stable angle, thus completing the efficient chamfering process.

[0034] (2) The present invention optimizes the laser, the laser continuously intakes air, the temperature of the laser can be controlled for a long time, and generates downward airflow to cool the through hole. The end strip reduces the inner diameter of the bottom opening of the contact head to concentrate the airflow. When chamfering, the end strip located above the contact head is inserted into the through hole. With the help of the downward airflow, the opening waste is pushed downward out of the through hole. The airflow is continuous, so that the chamfering waste generated later can fall down smoothly.

[0035] (3) Through the optimization of the support frame, the support plate suspends the raw material and avoids the direct under the hole, so that the through hole of the raw material can be deformed by the end strip. The negative pressure device puts the cover in a negative pressure state, sucking the raw material down tightly. The friction of the support plate prevents the raw material from being dragged and slipping when it is beveled. The waste is attracted down and collected, realizing efficient waste discharge and concentration. The lifting component drives the cover to move up and down, leaving enough space for loading and unloading raw materials and laser cutting of raw materials. Attached Figure Description

[0036] Figure 1 is a first-view structural diagram of the present invention;

[0037] Figure 2 is a structural diagram of the present invention from a second perspective.

[0038] Figure 3 is a schematic diagram of the support frame of the present invention;

[0039] Figure 4 is a schematic diagram of the drive module of the present invention;

[0040] Figure 5 is a schematic diagram of the structure between the laser and the angle adjustment frame of the present invention;

[0041] Figure 6 is a partial exploded view of the laser of the present invention;

[0042] Figure 7 is a partial cross-sectional schematic diagram of the laser of the present invention;

[0043] Figure 8 is a cross-sectional schematic diagram of the contact head of the laser of the present invention;

[0044] Figure 9 is a schematic diagram of the contact head of the laser of the present invention.

[0045] Figure 10 is a schematic diagram of the laser contacting the raw material according to the present invention;

[0046] Figure 11 is an enlarged schematic diagram of point a in Figure 10.

[0047] Reference numerals: 1. Frame; 2. Support frame; 21. Cover; 22. Negative pressure device; 23. Connecting pipe; 24. Support plate; 25. Waste container; 26. Lifting assembly; 3. Drive module; 4. Laser; 41. Laser generator; 42. Sleeve; 421. Air inlet pipe; 422. Locking sleeve; 43. Inner pipe one; 431. Air supply channel; 44. Inner pipe two; 441. Bottom ring; 442. Air passage; 443. Top ring; 45. Contact head; 451. Suction pipe; 452. Suction channel; 453. Side opening; 4 54. Mounting slot; 46. End bar; 461. Counterweight head; 462. Straight slot hole; 47. Spring piece; 48. Adapter frame; 481. Column head; 482. Rectangular block; 49. Elastic element; 5. Angle adjustment frame; 51. Connecting seat; 52. Rotator; 53. Middle frame; 531. Gear ring; 532. Clearance opening; 533. Servo motor; 54. Swinger; 541. Limiting opening; 542. Gear groove; 543. Sliding element; 6. Raw material; 61. Main body; 62. Through hole; 63. Chamfered waste material; 64. Opening waste material. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0049] As shown in Figures 1-11, this embodiment provides a drilling and processing equipment for automotive rubber and plastic products. Referring to Figure 1, it includes a frame 1, which is an aluminum alloy composite frame forming an installation carrier. It includes a support frame 2, which has a horizontal top surface on which a raw material 6 is mounted. The support frame 2 can drive the raw material 6 to move up and down. It includes a drive module 3 and a laser 4. Referring to Figure 3, the drive module 3 drives two front-to-back extending guide frames and has a left-to-right extending guide rail. The guide rail is mounted on the two guide frames and has a transmission belt. The transmission belt can move the guide rail back and forth. The guide rail has a transmission chain, which can drive the laser 4 to translate left and right in the horizontal direction, thus realizing two degrees of freedom translation of the laser 4. The laser 4 can generate a vertically downward laser beam to perform laser cutting processing on the raw material 6, forming through holes 62 on the main body 61. Then, according to the outline of the rubber and plastic gasket, multiple semi-finished rubber and plastic gaskets with through holes 62 are cut from the main body 61.

[0050] The practical problem addressed by this solution is how to use laser cutting equipment to chamfer the upper edge of the through hole 62 of the rubber gasket, so as to facilitate the subsequent countersunk hole installation of fasteners. Specifically, a configuration is provided that uses the laser equipment with the hole to perform the subsequent chamfering process, without the need to change the chamfering equipment again for separate chamfering processing.

[0051] Regarding laser 4, referring to Figure 5, laser 4 includes a laser generator 41, which generates a vertically downward laser beam. A sleeve 42 is installed at the laser generator 41's output port. The sleeve 42 is vertically arranged, and its axis coincides with the laser beam. Referring to Figure 7, an inner tube 1 43 and an inner tube 2 44 are coaxially fitted inside the sleeve 42. All three are hollow cylindrical tubes. The inner tube 2 44 allows the laser to pass through and enables continuous gas inflow, generating a downward airflow to cool the cut surface. A contact head 45 is installed at the lower end of the inner tube 1 43, detachably threaded onto the bottom end of the inner tube 1 43. An end bar 46 is movably installed at the opening at the bottom end of the contact head 45. When processing the through hole 62, the contact head 45 adopts a conical shape that is thicker at the top and thinner at the bottom. The end bar 46 can extend along the outer contour of the contact head 45, which reduces the diameter of the air outlet, increases the airflow velocity, and thus improves the heat dissipation capacity. When chamfering, the angle adjustment frame 5 between the drive module 3 and the laser 4 drives the laser 4 to swing from a vertical state to a top-tilted state. Referring to Figure 11, when tilted, the laser beam is also tilted, and chamfering can be performed on the upper edge of the through hole 62. Because the material 6 is made of rubber, the flexible material will have different concave and convex angles. The end bar 46 presses on the upper surface of the material 6, which can make the deformation angle of the material 6 consistent, thus ensuring that the chamfer angle is more neat and consistent during cutting and improving the chamfer quality.

[0052] In a further embodiment, a specific configuration is provided for the downward air outlet of the laser 4. Referring to Figures 6 and 7, an air inlet pipe 421 is installed through the side wall of the sleeve 42. The air inlet pipe 421 introduces purified air or inert gas into the sleeve 42. The inert gas can retard flames and drive away the air at the opening of the raw material 6, reducing oxygen at the cutting position and creating an anti-oxidation gas atmosphere at the laser cutting position. The inner diameter of the sleeve 42 is larger than the outer diameter of the inner tube 43. An air supply channel 431 is formed between the inner wall of the sleeve 42 and the outer wall of the inner tube 43, allowing the gas to rise. The gas flows along... The gas flows upwards from the outer wall of inner tube 43, passing over its top and entering inner tube 44. Finally, it flows downwards along inner tube 44 and exits from its bottom. Referring to Figure 7, vent holes 442 are provided on the circumferential sidewall of inner tube 44. During this process, some of the gas in inner tube 44 absorbs heat and expands. This gas then enters the interlayer between inner tube 43 and inner tube 44 through the vent holes 442, transferring some of the heat to inner tube 43. Inner tube 43 is made of metal, which has good thermal conductivity. The large contact area between inner tube 43 and the airflow further facilitates heat dissipation, achieving efficient cooling.

[0053] In a further embodiment, to ensure the cleanliness of the cutting position, referring to Figures 6 and 7, a top ring 443 is installed at the top of the inner tube 2 44, and a bottom ring 441 is provided at the bottom opening of the inner tube 1 43. The top ring 443 and the bottom ring 441 are coaxial rings, and both the top ring 443 and the bottom ring 441 are screwed to the inner wall of the inner tube 1 43 to ensure that the inner tube 2 44 is vertical. A suction pipe 451 is installed through the side wall of the contact head 45. The inner wall of the contact head 45 and the outer wall of the inner tube 2 44 form a suction channel 452, which allows for air blowing while the air is being used for cleaning. Air is drawn in through the suction pipe 451, creating a negative pressure space at the suction channel 452. The bottom ring 441 separates the air supply channel 431 from the suction channel 452, forming two independent passages at the bottom of the laser 4. The side wall of the contact head 45 has a side opening 453 facing all directions, which attracts and concentrates the raw material 6 particles carried by the upward airflow and can also increase the suction coverage. The smoke carries small plastic particles, and the smoke generated below is collected in time to prevent the small plastic particles from falling onto the surface of the raw material 6 and solidifying, which would cause the surface of the finished product to be uneven.

[0054] In a further embodiment, to realize the rotation and sliding of the end bar 46, a specific configuration is provided. Referring to Figures 8 and 9, the bottom end of the contact head 45 is provided with a mounting groove 454, which is located below the side opening 453. The adapter frame 48 is installed in the mounting groove 454. Specifically, the left and right side walls of the adapter frame 48 are provided with rectangular blocks 482, and the vertical side walls of the rectangular blocks 482 are provided with column heads 481. The adapter frame 48 is rotatably installed in the mounting groove 454 through the column heads 481. The straight slot hole 462 in the middle of the end bar 46 has a horizontal inner wall. The rectangular blocks 482 can make the end bar 46 slide up and down relative to the contact head 45.

[0055] When the end bar 46 is not in contact with the raw material 6, an elastic element 49 is installed between the top of the end bar 46 and the contact head 45, and a spring piece 47 is installed between the adapter frame 48 and the contact head 45. The spring piece 47 presses the upper part of the end bar 46 against the upper inner wall of the mounting groove 454 through its own elasticity. The lower part of the contact head 45 is a cone shape that is thicker at the top and thinner at the bottom, so that the lower parts of the end bars 46 are close to each other. The elastic element 49 keeps the end bar 46 at the lower stop point of the downward extension through its own elasticity. At this time, the end bar 46 extends downward to reduce the inner diameter of the bottom opening of the contact head 45, which can concentrate the airflow blown towards the through hole 62 by the diameter reduction, ensure the air outlet speed, and push the opening waste material 64 downward.

[0056] When the end bar 46 contacts the raw material 6, a counterweight head 461 is provided at the lower end of the end bar 46. Because the rectangular block 482 is rotatably installed with the contact head 45 through the column head 481, the spring piece 47 deforms when pressed, and the upper part of the end bar 46 can swing downward to reduce the angle with the raw material 6. The end bar 46 squeezes the raw material 6 at a small angle with the horizontal plane, causing the edge of the through hole 62 to be slightly concave. With the laser 4 tilted slightly downward, the tilt of the raw material 6 plus the tilt of the laser 4 can perform a larger angle chamfering. During the rotation of the laser 4, the drive module 3 will drive the laser 4 to draw a circle around the axis of the through hole 62, ensuring that the extension line of the end bar 46 that squeezes the raw material 6 intersects the axis of the through hole 62, that is, always passes through the center of the through hole 62. This continuous pressure on the raw material 6 at a fixed angle ensures that the chamfered position of the raw material 6 can be kept at a consistent angle, ensuring the quality of the chamfering process.

[0057] In a further embodiment, referring to Figure 5, when performing the hole-making process, the contact head 45 is vertical and does not contact the raw material 6, which ensures that the end strip 46 hangs vertically downwards. At this time, it completes the function of converging the air outlet. When performing the chamfering process, referring to Figure 10, the inclination of the contact head 45 combined with the inclination of the raw material 6 can cut out a chamfered waste material 63 with a triangular cross-section on the through hole 62, so as to carry out the countersunk hole installation of fasteners such as bolts. At this time, referring to Figure 11, only the end strip 46 between the contact head 45 and the raw material 6 is in a shortened state, and the end strip 46 above the contact head 45 is in an extended state and is inserted into the through hole 62 from top to bottom. Before chamfering, the hole-making waste material 64 can be pushed downward out of the through hole 62, so that the gradually generated chamfered waste material 63 can fall downward smoothly, avoiding waste material remaining at the hole position and causing subsequent adhesion and other problems.

[0058] In a further embodiment, because laser cutting has a focal length issue, the distance from the vertically suspended laser 4 to the raw material 6 is greater than the distance from the laser 4 tilted to contact the raw material 6. Therefore, when chamfering, the laser 4 needs to be lengthened to ensure a reasonable distance between the laser 4 and the raw material 6 during chamfering. Referring to Figures 6 and 7, the lower part of the outer circumference of the sleeve 42 is provided with a threaded groove. During adjustment, the locking sleeve 422 can rotate downward along the threaded groove at the lower part of the sleeve 42. At this time, the locking sleeve 422... The inner edge disengages from the lower edge of the sleeve 42, allowing the inner tube 43 to be pulled down. After adjustment, the locking sleeve 422 is screwed up, and the inner edge of the locking sleeve 422 contacts the lower edge of the sleeve 42. Because the inner edge of the locking sleeve 422 uses a tapered hole that is thicker at the top and thinner at the bottom, when the locking sleeve 422 is screwed up, the lower part of the sleeve 42 will be squeezed towards the inner tube 43. The notch ensures that the lower part of the sleeve 42 can be squeezed into a small deformation, so that the lower part of the sleeve 42 and the inner tube 43 are squeezed together, completing the fixation after adjustment.

[0059] In a further embodiment, a specific configuration of an angle adjustment frame 5 is disclosed. Referring to Figures 5 and 10, the angle adjustment frame 5 includes a connecting seat 51, a rotator 52, and an oscillator 54. The connecting seat 51 has a slider at its lower part, and the drive module 3 has a horizontal guide rail. The slider has a groove at its lower part and slides horizontally left and right under the guidance of the guide rail. The connecting seat 51 and the rotator 52 are connected by a middle frame 53, which drives the rotator 52 to slide left and right. The oscillator 54 is fixedly installed on the top of the middle frame 53. The rotator 52 can drive the oscillator 54 and the laser 4 to rotate synchronously. In conjunction with the drive module 3, the laser 4 is driven to draw a circle around the axis of the through hole 62, ensuring that the laser focus of the laser 4 is always at the upper edge of the through hole 62. The laser 4 oscillates under the drive of the oscillator 54. The rotator 52 can drive the laser 4 to rotate under the limit of the middle frame 53. The oscillator 54 can drive the laser 4 to tilt, which can be used for chamfering of the raw material 6.

[0060] In a further embodiment, to achieve the rotational drive of the laser 4, a specific configuration is disclosed. Referring to Figure 5, the middle frame 53 is annular, and the middle frame 53 is connected to the connecting seat 51 via a rotator 52. The middle frame 53 has a waist-shaped clearance opening 532 in the middle, allowing the laser 4 to swing freely within the clearance opening 532, thus avoiding interference with the adjustment of the chamfer angle of the laser 4. The middle frame 53 has a toothed ring 531 at its end, located at the top of the middle frame 53. A servo motor 533 is installed above the connecting seat 51 and meshes with the gear ring 531. The servo motor 533 drives the middle frame 53 to rotate through meshing with the gear ring 531. When rotating, the middle frame 53 has an annular groove in the middle of its outer circumference and an annular protrusion on the inner circumference of the opening of the connecting seat 51. The annular protrusion is embedded in the annular groove, so that the middle frame 53 can rotate horizontally. This ensures that the rotation centerline of the middle frame 53 coincides with the axis of the through hole 62, which can drive the laser 4 to rotate.

[0061] In a further embodiment, to achieve the oscillation drive of the laser 4, a specific configuration is disclosed. Referring to Figure 5, the oscillator 54 is an arc segment cut from a circular ring. The center of the oscillator 54 is located at a distance below the laser 4, coinciding with the focal point of the laser. The oscillator 54 is provided with a limiting port 541, in which a sliding member 543 is installed. The laser 4 is fixedly installed in the sliding member 543. Thus, when the laser 4 oscillates, it rotates around the focal point of the laser. The outer wall of the oscillator 54 is provided with a toothed groove 542. The sliding member 543 is provided with a corresponding stepper motor at the position of the toothed groove 542. Both the upper and lower ends of the sliding member 543 have arc-shaped plates. The two arc-shaped plates slide in contact with the upper and lower side walls of the oscillator 54, respectively, to provide a limiting function. The sliding member 543 is slidably installed in the limiting port 541. The sliding member 543 slides under the guidance of the oscillator 54. Because the limiting is precise, it is easy to focus. Furthermore, the stepper motor can complete the oscillation drive by meshing with the toothed groove 542 through gears.

[0062] In a further embodiment, a specific configuration of the support frame 2 is disclosed. Referring to Figures 2 and 3, the support frame 2 includes an upward-opening cover 21 with a rectangular opening to facilitate the support of a rectangular raw material 6. Side-by-side support plates 24 are installed on the upper part of the cover 21, with the support plates 24 suspended in the opening. To prevent the raw material 6 from being compressed and concave due to the support plates 24, the support plates 24 can slide left and right. A horizontally extending groove is provided on the vertical inner wall of the cover 21 at the opening position. The front and rear ends of the support plates 24 extend into the horizontal groove and can slide freely, enabling horizontal sliding of the support plates 24. While supporting the raw material 6, the support plates 24 are not positioned directly below the opening. A negative pressure device 22 is connected to the lower part of the cover 21. The negative pressure device 22 keeps the cover 21 under negative pressure, which sucks the raw material 6 tightly. The friction of the support plate 24 prevents the raw material 6 from being dragged and slipping when it is beveled. A connecting pipe 23 is provided between the cover 21 and the negative pressure device 22. A mesh plate is provided at the connection between the connecting pipe 23 and the cover 21 to prevent waste from entering the negative pressure device 22. Furthermore, a waste collection tank 25 is provided at the lowest point of the cover 21. Waste accumulates in the waste collection tank 25. A movable door is provided at the bottom of the waste collection tank 25, which can be opened for waste discharge. A lifting component 26 is installed between the cover 21 and the frame 1. The lifting component 26 can drive the cover 21 to move up and down. When the cover 21 moves down, it leaves enough space for loading and unloading the raw material 6 and for the laser 4 to cut the raw material 6. When the cover 21 moves up, it moves closer to the laser 4 for squeezing contact.

[0063] A method for drilling holes in automotive rubber and plastic products includes the following steps:

[0064] S1. When processing automotive rubber and plastic gaskets, in order to process a rubber and plastic gasket blank with a through hole 62 on the raw material 6, the laser 4 is verticalized, and then the laser 4 is translated under the drive of the drive module 3, which can process a round hole or a waist-shaped hole that passes through the main body 61.

[0065] S2. To facilitate the installation of fasteners such as rivets and bolts in the countersunk hole, the laser 4 is tilted by the angle adjustment frame 5. The end strip 46 between the contact head 45 and the raw material 6 is in an inclined state, and the raw material 6 is squeezed to make the edge of the through hole 62 slightly concave. The support plate 24 of the support frame 2 suspends the raw material 6, avoiding the position directly below the hole. The negative pressure device 22 of the support frame 2 puts the cover 21 in a negative pressure state, sucking the raw material 6 tightly. With the friction of the support plate 24, the raw material 6 is prevented from being dragged and slipped when it is beveled, so that the raw material 6 is at a stable angle when it is beveled. The extension line of the end strip 46 that squeezes the raw material 6 intersects the axis of the through hole 62. With the help of the drive module 3, the laser 4 is driven to draw a circle around the axis of the through hole 62, and the beveled waste material 63 is processed along the bevel on the through hole 62 to complete the bevel processing.

[0066] S3. When laser is generated, the laser 4 is supplied with continuous air intake, which will generate a continuous downward airflow in the inner tube 44, which will rapidly cool the through hole 62 and blow the opening waste 64 downward out of the through hole 62, realizing immediate waste discharge, and carrying away the heat inside the inner tube 44 to ensure that the temperature of the laser 4 can be controlled for a long time.

[0067] S4. When making the hole, the laser 4 is in a vertical position, and the end bar 46 extends downward to reduce the inner diameter of the bottom opening of the contact head 45. This can concentrate the airflow blowing towards the through hole 62 by reducing the diameter, and blow the hole opening waste 64 downward to be discharged from the through hole 62, ensuring the continuity of the through hole 62.

[0068] S5. During the chamfering process, the laser 4 contacts the raw material 6. The compression of the end strip 46 can also reduce the tilt angle of the laser 4, ensuring that the position of the laser 4 is relatively stable. At this time, the inner tube 44 generates a continuous downward airflow, blowing the chamfering waste 63 downward. The end strip 46 located above the contact head 45 is in an extended state and is inserted into the through hole 62 from top to bottom. Before chamfering, the opening waste 64 can be pushed downward out of the through hole 62, so that the gradually generated chamfering waste 63 can fall downward smoothly, avoiding the chamfering waste 63 sticking to the inner wall of the through hole 62. The negative pressure device 22 sucks air downward, which can attract the chamfering waste 63 and the opening waste 64 downward and concentrate them in the waste collection tank 25.

[0069] S6. After the chamfering is completed, the laser 4 moves upward and returns to the vertical position. The end bar 46 extends downward to reduce the inner diameter of the bottom opening of the contact head 45. This can accelerate the airflow blown toward the through hole 62 by reducing the diameter, so as to prevent the opening waste 64 or the chamfering waste 63 from sticking to the inner wall of the through hole 62 or the chamfer position, and ensure the neatness of the position of the through hole 62.

[0070] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention.

Claims

1. A drilling and processing equipment for automotive rubber and plastic products, comprising a frame (1), a support frame (2), a drive module (3), and a laser (4), wherein the support frame (2) has a raw material (6) on its top and drives the raw material (6) to move up and down, the drive module (3) drives the laser (4) to move horizontally, and the laser (4) is capable of generating a vertically downward laser beam, characterized in that: The laser (4) includes a laser generator (41), with a sleeve (42) installed at the laser generator (41) output port. An inner tube (43) and an inner tube (44) are coaxially fitted inside the sleeve (42). The inner tube (44) allows the laser to pass through and allows continuous gas entry. A contact head (45) is installed at the lower end of the inner tube (43), and an end strip (46) is movably installed at the bottom opening of the contact head (45). The laser also includes an angle adjustment frame (5) installed between the drive module (3) and the laser (4). The drive module (3) drives the laser (4) to translate via the angle adjustment frame (5), and the angle adjustment frame (5) drives the laser (4) to swing from a vertical position to a top-tilted position. A mounting groove (454) is provided at the bottom of the contact head (45). The end strip (46) has a straight slot hole (462) in the middle, and a rectangular block (482) is slidably installed in the straight slot hole (462). A transition frame (48) is installed between the rectangular blocks (482). The rectangular blocks (482) are rotatably installed in the mounting groove (454) through the column head (481). The end strip (46) has a counterweight head (461) at the lower end. An elastic element (49) is installed between the top of the end strip (46) and the contact head (45). A spring piece (47) is installed between the transition frame (48) and the contact head (45). When the laser (4) is not in contact with the raw material (6), the end strip (46) extends downward to reduce the inner diameter of the bottom opening of the contact head (45). When the laser (4) is tilted, the end strip (46) in contact with the raw material (6) swings and squeezes the raw material (6) downward.

2. The drilling equipment for automotive rubber and plastic products according to claim 1, characterized in that, The angle adjustment frame (5) includes a connecting seat (51), a rotator (52) and a swinger (54). The connecting seat (51) and the rotator (52) are connected by a middle frame (53). The swinger (54) is fixedly installed on the top of the middle frame (53). The laser (4) swings under the drive of the swinger (54). The rotator (52) can drive the laser (4) to rotate under the limit of the middle frame (53).

3. The drilling equipment for automotive rubber and plastic products according to claim 2, characterized in that, The middle frame (53) is provided with a clearance opening (532) in the middle, and the laser (4) swings freely in the clearance opening (532). The middle frame (53) is provided with a toothed ring (531) at the end. The middle frame (53) and the connecting seat (51) are connected by a rotator (52). The middle frame (53) is located above the connecting seat (51) and a servo motor (533) that meshes with the toothed ring (531) is installed.

4. The drilling equipment for automotive rubber and plastic products according to claim 3, characterized in that, The oscillator (54) is provided with a limiting port (541), and a sliding member (543) is installed in the limiting port (541). The laser (4) is fixedly installed in the sliding member (543). The outer wall of the oscillator (54) is provided with a toothed groove (542), and the sliding member (543) is provided with a corresponding stepper motor at the position of the toothed groove (542).

5. The drilling equipment for automotive rubber and plastic products according to claim 1, characterized in that, An air inlet pipe (421) is installed through the side wall of the sleeve (42), and an air supply channel (431) is formed between the inner wall of the sleeve (42) and the outer wall of the inner tube (43). An air passage (442) is opened on the circumferential side wall of the inner tube (44).

6. The drilling equipment for automotive rubber and plastic products according to claim 5, characterized in that, The top of the inner tube 2 (44) is equipped with a top ring (443), and the bottom ring (441) is provided at the bottom opening of the inner tube 1 (43). The top ring (443) and the bottom ring (441) are screwed to the inner wall of the inner tube 1 (43) by threads. The side wall of the contact head (45) is equipped with a suction pipe (451). The inner wall of the contact head (45) and the outer wall of the inner tube 2 (44) form a suction channel (452). The side wall of the contact head (45) is provided with a side opening (453).

7. The drilling equipment for automotive rubber and plastic products according to claim 1, characterized in that, The lower part of the outer circumference of the sleeve (42) is provided with a threaded groove. The sleeve (42) has a notch at the location where the threaded groove is opened. The lower part of the sleeve (42) is screwed on with a locking sleeve (422) through the threaded groove. The locking sleeve (422) can be screwed on to squeeze the lower part of the sleeve (42) and the inner tube (43) tightly together.

8. The drilling equipment for automotive rubber and plastic products according to claim 1, characterized in that, The support frame (2) includes an upward-opening cover (21), with side-by-side support plates (24) installed on the upper part of the cover (21), a negative pressure device (22) connected to the lower part of the cover (21), a connecting pipe (23) between the cover (21) and the negative pressure device (22), a waste collection trough (25) at the lowest point of the cover (21), and a lifting assembly (26) installed between the cover (21) and the frame (1).

9. A method for drilling automotive rubber and plastic products, using the drilling equipment for automotive rubber and plastic products as described in any one of claims 1-8, characterized in that, The process includes the following steps: S1, the raw material (6) is placed on the top of the support frame (2), the drive module (3) drives the laser (4) to move horizontally, and the laser beam processes a vertical through hole (62) on the raw material (6); S2, when the laser (4) is not in contact with the raw material (6), the end bar (46) extends downward to reduce the inner diameter of the bottom opening of the contact head (45), the inner tube (44) continuously enters the gas and sprays it out from the bottom, generating an airflow blowing towards the raw material (6); S3, the angle adjustment frame (5) drives the laser (4) to swing from the vertical state to the top tilted state, the support frame (2) drives the raw material (6) to move upward to contact the tilted laser (4), the end bar (46) located below the contact head (45) squeezes the raw material (6) downward, and the laser (4) rotates around the axis of the through hole (62) to perform chamfering processing on the upper edge of the through hole (62) through the laser beam.

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