Plasma deburring device for vehicle lamp mold of industrial robot

Abstract

This invention relates to the field of industrial robot processing equipment technology, and discloses a plasma deburring device for automotive headlight molds equipped with an industrial robot. The device includes a main body comprising a plasma unit, a distance adjustment unit, and an angle adjustment unit. By setting up a linkage structure between the distance adjustment unit and the flow adjustment mechanism, it solves the problem of incomplete burr removal in long-distance machining cavities, and avoids mold hole deformation and thin-wall damage caused by concentrated plasma etching during close-range machining. It balances deburring effectiveness with mold protection requirements. Furthermore, through the linkage between the traction mechanism and the distance adjustment unit, it effectively eliminates blind spots in hole cleaning, comprehensively removes tiny flash around the holes, and improves the uniformity of burr removal in the mold holes. Simultaneously, the configuration of an adjustment mechanism that can drive the traction guide rail allows for better adaptation to diverse hole and groove structures in automotive headlight molds, improving the device's versatility and reducing hardware costs and the probability of electrical failures.

Description

Technical Field

[0001] This invention relates to the field of industrial robot processing equipment technology, specifically to a plasma deburring device for automotive headlight molds equipped with an industrial robot. Background Technology

[0002] After automotive headlight molds are formed through injection molding, the molds integrate a large number of ejector pin holes, vent holes, assembly blind holes, narrow grooves and thin-walled irregular curved surface structures. They are the core tooling for forming headlight covers and housings. After injection molding, micron-level plastic flash burrs are easily generated at the parting surface, various orifices, and groove corners. If the burrs are not cleaned, subsequent injection molded products will have defects such as overflow, dimensional deviation, and appearance defects. Plasma deburring, with its advantages of non-contact, low-temperature processing and no mechanical scratches, is gradually replacing traditional processes such as grinding and chemical corrosion and is widely used in the burr cleaning process of plastic headlight molds. However, the micro-holes, deep grooves, and thin-walled structures of automotive headlight molds are complex, and conventional plasma processing methods have many limitations in actual operation. For example, during processing, the plasma spray gun is usually kept at a fixed distance from the mold to ensure stability during the operation. However, if the distance is too large when processing the cavity, the penetration power of the plasma beam may be insufficient, and burrs are easily left on the inner wall and bottom of the hole. Conversely, if the processing distance is shortened to improve the processing effect, the concentrated plasma energy will corrode the thin wall of the mold and cause the hole diameter to exceed the tolerance. Moreover, the cavity of automotive headlight molds is usually a ring-shaped closed structure, which can easily form a cleaning blind zone on the inner wall during operation, making it difficult to completely cover the entire area of ​​the hole wall. The removal of burrs around the hole may not be thorough, affecting the final processing quality of the mold. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a plasma deburring device for automotive headlight molds equipped with an industrial robot. It features synchronous and coordinated adjustment of processing spacing, spray intensity, and spray angle, adapting to dynamic all-round deburring of various holes and grooves in molds. It boasts advantages such as high processing efficiency and protection of thin mold walls, solving the problems of burr residue in conventional plasma processing cavities, easy corrosion of mold hole walls, and blind spots in cleaning the inner walls of holes.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a plasma deburring device for automotive headlight molds equipped with an industrial robot, comprising a main body of the device and an industrial robot disposed on one side of the main body for clamping, fixing, and adjusting the position of the automotive headlight mold, including: A plasma unit, wherein the plasma unit has at least a spray gun mechanism and a flow control mechanism; A pitch adjustment unit, wherein the pitch adjustment unit has at least a drive mechanism and a feed guide mechanism; An angle adjustment unit, wherein the angle adjustment unit has at least a traction mechanism and an adjustment mechanism; When the drive mechanism and the feed guide mechanism drive the spray gun mechanism to move, increasing or decreasing the distance between the nozzle output end of the spray gun mechanism and the position to be deburred on the car lamp mold, the flow adjustment mechanism is driven to move synchronously, increasing or decreasing the plasma gas flow rate and improving the spray intensity. The traction mechanism outputs traction force synchronously to drive the spray gun mechanism to gradually deflect and change the plasma spray angle. When the adjustment mechanism drives the traction mechanism to change the traction stroke range and direction, and the spray gun mechanism moves back and forth synchronously with the adjustment unit to adjust the processing distance, the traction mechanism can drive the spray gun mechanism to achieve angular deflection of different amplitudes and directions.

[0005] Preferably, the spray gun mechanism includes: The plasma gun is located inside the main body of the device; The bellows, with its output end fixedly connected to the input end of the plasma gun, is used to output plasma gas to the plasma gun. When the corrugated pipe supplies plasma gas to the plasma gun, the plasma gun outputs plasma gas through the nozzle and precisely sprays it onto the position of the headlight mold to be deburred, thereby achieving deburring of the headlight mold.

[0006] Preferably, the flow control mechanism includes: The bracket is fixedly connected to the inner wall of the main body of the equipment. A flow valve is provided on one side for fixed connection with the input end of the bellows. The flow valve is fixedly connected to the inner wall of the main body of the equipment, and the input end of the flow valve is connected to the external plasma supply equipment. When the spray gun mechanism adjusts the distance between itself and the mold to be deburred, the output flow rate and spray intensity of the plasma gas of the spray gun mechanism are adjusted by rotating the flow control knob of the flow valve.

[0007] Preferably, a slide rail is fixedly connected to the inner wall of the bracket, a slider is slidably connected to the surface of the slide rail, a rack is fixedly connected to the side of the slider away from the slide rail, a gear is meshed with the side of the rack away from the slider, and the axial side of the gear is fixedly connected to the axial side of the flow valve control knob to drive the flow valve control knob to rotate in both directions. When the rack moves linearly along the slide rail via the slider, it synchronously drives the gear to rotate and drives the control knob of the flow valve to rotate, thereby adjusting the output flow rate and spray intensity of the plasma gas of the spray gun mechanism.

[0008] Preferably, a top rod for connecting to a feed guide mechanism is fixedly connected to the top of the rack; When the push rod moves with the feed guide mechanism, it synchronously drives the rack to move.

[0009] Preferably, the drive mechanism includes: The mounting bracket is surface-fixed to the inner wall of the equipment body; Motor 1 is fixedly connected to the top of the fixed frame at the bottom, and a lead screw is fixedly connected to it through the output shaft. The bottom of the lead screw is rotatably connected to the inner wall of the fixed frame. Threaded sleeve, with its inner wall threaded to the surface of the lead screw; When the motor starts, it drives the lead screw to rotate and uses the feed guide mechanism to restrict the movement trajectory of the spray gun mechanism, so that the threaded sleeve drives the spray gun mechanism to move.

[0010] Preferably, the feed guiding mechanism includes: The base is fixedly connected to one side of the threaded sleeve on one side, and rotatably connected to the surface of the plasma gun on the other side. Slide rail 2, both ends are fixedly connected to the inner wall of the fixed frame, and slider 2 is slidably connected to the inner wall. The side of slider 2 away from slide rail 2 is fixedly connected to the side of the base away from the plasma gun. When the threaded sleeve drives the base to move, the limiting and guiding effect of the slide rail two and the slider two on the base causes the base to drive the plasma gun to move synchronously, which is used to adjust the distance between the plasma gun nozzle and the position of the mold to be deburred.

[0011] Preferably, the traction mechanism includes: The crank is fixedly connected at one end to the side of the plasma gun away from the base, and the other end is rotatably connected to a guide wheel. The guide rail is located inside the main body of the equipment and is internally slidably connected to the surface of the guide wheel; When the plasma gun is adjusted to maintain the distance between itself and the mold to be deburred, the guide rail guides the guide wheel, causing the crank to gradually deflect the plasma gun and change the plasma spray angle.

[0012] Preferably, the adjustment mechanism includes: The positioning frame is fixedly connected to the inner wall of the main body of the equipment, and a second motor is fixedly connected to one side. The second motor is fixedly connected to one end of the traction guide rail through the output shaft. When the second motor starts, it drives the guide rail to rotate, changing the travel range and deflection direction of the spray gun mechanism.

[0013] Preferably, the inner wall of the positioning frame is provided with an arc-shaped guide groove, and a limit wheel is slidably connected to the inner wall of the arc-shaped guide groove. One end of the limit wheel is rotatably connected to the end of the traction guide rail away from the motor. When the second motor drives the traction guide rail to rotate, the arc-shaped guide groove and the limiting wheel limit and guide the rotation trajectory of the traction guide rail to ensure the stability of the traction guide rail during rotation.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a plasma deburring device for automotive headlight molds equipped with an industrial robot, which has the following beneficial effects: 1. This plasma deburring device for automotive headlight molds equipped with an industrial robot forms a linkage structure through the matching distance adjustment unit and flow adjustment mechanism. During the process of adjusting the distance between the spray gun and the mold processing distance, the plasma gas flow rate and spray intensity are adaptively adjusted. When the spray gun is far away from the mold to process various deep hole structures, the airflow is automatically increased to enhance the plasma spray penetration. When it is close to the thin wall of the mold cavity, the airflow is automatically reduced to weaken the plasma corrosion intensity. This can solve the problem of incomplete deburring of the cavity at a long distance and avoid mold hole deformation and thin wall damage caused by concentrated plasma etching during close-range processing, thus taking into account both the deburring effect and the mold protection requirements. 2. This invention uses a traction mechanism and a distance adjustment unit to work together. The spray gun can synchronously drive itself to gradually deflect and tilt throughout the entire process of dynamically adjusting the processing distance. For the three-dimensional structure of the annular cavity of the car headlight mold, the plasma beam can continuously change the incident angle as the spray gun moves, which can better cover the bottom of the mold hole, the side wall of the hole, and the annular waiting area at the hole opening. It can effectively eliminate the blind spot of cleaning the inner wall of the hole, remove the tiny flashes around the hole in all directions, and improve the uniformity of burr removal at the mold hole. 3. By configuring an adjustment mechanism that can drive the traction guide rail, the effective traction stroke range of the traction mechanism can be pre-adjusted. For different hole structures of different diameters and depths in the mold, the spray gun deflection amplitude, deflection range and direction can be switched. When processing small holes, a small-angle inclined sweeping is used, and when processing large deep holes, a large-angle and large-range spraying is used. This can better adapt to the diverse hole and groove structures of automotive lamp molds and further improve the versatility of the equipment.

[0015] 4. This invention dynamically and synchronously links the processing spacing, plasma spraying intensity, and spray gun tilt angle, and uses an industrial robot to adjust the position of the car lamp mold. While ensuring processing quality, it can effectively improve the automated processing efficiency of car lamp molds. Moreover, the transmission response synchronization is high, which can effectively reduce the hardware cost of the equipment and the probability of electrical failure, and ensure the stable operation of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a cross-sectional view of the main body of the device according to the present invention.

[0018] Figure 3 This is a schematic diagram of the plasma unit, distance adjustment unit, and angle adjustment unit of the present invention.

[0019] Figure 4 This is a schematic diagram of the plasma unit and the pitch adjustment unit of the present invention.

[0020] Figure 5 This is a cross-sectional view of the fixing frame of the present invention.

[0021] Figure 6 This is a schematic diagram of the flow regulation mechanism of the present invention.

[0022] Figure 7 For the present invention Figure 6 An enlarged schematic diagram of the structure at point A.

[0023] Figure 8 This is an exploded view of the flow regulation mechanism of the present invention.

[0024] Figure 9 This is a schematic diagram of the plasma unit and the angle adjustment unit of the present invention.

[0025] Figure 10 This is a cross-sectional view of the positioning frame of the present invention.

[0026] Figure 11 This is an exploded view of the angle adjustment unit of the present invention.

[0027] In the image: 1. Main body of the equipment; 2. Industrial robot; 3. Plasma unit; 31. Spray gun mechanism; 311. Plasma gun; 312. Bellows; 32. Flow control mechanism; 321. Support; 322. Flow valve; 323. Slide rail one; 324. Push rod; 325. Slider one; 326. Gear; 327. Rack; 4. Adjustment unit; 41. Drive mechanism; 411. Fixing frame; 412. Motor 1; 413. Lead screw; 414. Threaded sleeve; 42. Feed guide mechanism; 421. Base; 422. Slider 2; 423. Slide rail 2; 5. Angle adjustment unit; 51. Traction mechanism; 511. Crank; 512. Traction guide rail; 513. Guide wheel; 52. Adjustment mechanism; 521. Positioning frame; 522. Arc-shaped guide groove; 523. Motor II; 524. Limit wheel. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 element 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 this invention.

[0030] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] Example 1: This embodiment provides a plasma deburring device for automotive headlight molds equipped with an industrial robot, which has the following technical features.

[0033] Please see Figure 1-11 The device includes a main body 1, an industrial robot 2 set on one side of the main body 1 for clamping, fixing and adjusting the position of the car light mold, and also includes a plasma unit 3 and a distance adjustment unit 4. The plasma unit 3 has at least a spray gun mechanism 31 for deburring the headlight mold and a flow adjustment mechanism 32 for synchronously adjusting the plasma gas flow rate and changing the spray intensity as the spray gun mechanism 31 moves. Specifically, the spray gun mechanism 31 includes a plasma gun 311 and a bellows 312. The plasma gun 311 is located inside the main body 1 of the equipment. The output end of the bellows 312 is fixedly connected to the input end of the plasma gun 311 through a pipe joint, and is used to output plasma gas to the plasma gun 311. After the bellows 312 supplies plasma gas to the plasma gun 311, the plasma gun 311 outputs plasma gas through the nozzle and precisely sprays it onto the position of the car headlight mold to be deburred, thereby achieving deburring of the car headlight mold. Specifically, the flow control mechanism 32 includes a bracket 321, a flow valve 322, a slide rail 323, a push rod 324, a slider 325, a gear 326, and a rack 327. The surface of the bracket 321 is fixedly connected to the inner wall of the equipment body 1 by bolts. A flow valve 322 is provided on one side of the bracket 321 for fixed connection to the input end of the bellows 312. The surface of the flow valve 322 is fixedly connected to the inner wall of the equipment body 1 by bolts, and the input end of the flow valve 322 is connected to an external plasma supply device. A slide rail 323 is fixedly connected to the inner wall of the bracket 321 by bolts. A slider 325 is slidably connected to the surface of the slide rail 323, and the slider 325 is fitted onto the surface of the slide rail 323 and can slide along... The slide rail 323 slides, and the slider 325 is fixedly connected to the side away from the slide rail 323 by a rack 327. The rack 327 is fixedly connected to the side of the slider 325 away from the slide rail 323 by bolts. The side of the rack 327 away from the slider 325 is meshed with a gear 326. The axial side of the gear 326 is fixedly connected to the axial side of the flow valve 322 control knob. The gear 326 is fixedly connected to the axial side of the flow valve 322 control knob by a flat key, and is used to drive the flow valve 322 control knob to rotate forward and backward. The top of the rack 327 is fixedly connected to a push rod 324 for connecting with the feed guide mechanism 42, and one end of the push rod 324 is fixedly connected to the top of the rack 327 by bolts. Among them, the distance adjustment unit 4 has at least a drive mechanism 41 for adjusting the distance between the nozzle output end of the spray gun mechanism 31 and the position to be deburred of the car lamp mold, and a feed guide mechanism 42 for limiting the movement trajectory of the spray gun mechanism 31. Specifically, the drive mechanism 41 includes a fixed frame 411, a motor 412, a lead screw 413, and a threaded sleeve 414. The fixed frame 411 is fixedly connected to the inner wall of the main body 1 by bolts. The motor 412 is fixedly connected to the top of the fixed frame 411 by bolts. The lead screw 413 is fixedly connected to the output shaft of the motor 412 by a coupling. The bottom of the lead screw 413 is rotatably connected to the inner wall of the fixed frame 411 by a bearing. The inner wall of the threaded sleeve 414 is threadedly connected to the surface of the lead screw 413. Specifically, the feed guide mechanism 42 includes a base 421, a second slider 422, and a second slide rail 423. The base 421 is fixedly connected to one side of the threaded sleeve 414 by bolts. The plasma gun 311 is rotatably connected to the other side of the base 421 by bearings. The two ends of the second slide rail 423 are fixedly connected to the inner wall of the fixed frame 411 by bolts. The second slider 422 is sleeved on the surface of the second slide rail 423 and can slide along the second slide rail 423. The second slider 422 is fixedly connected to the side of the base 421 away from the plasma gun 311 by bolts. The push rod 324 is fixedly connected to one side of the base 421 by bolts.

[0034] It should be noted that when motor 412 starts, it drives lead screw 413 to rotate, and through slide rail 423 and slider 422, it limits and guides base 421, causing threaded sleeve 414 to drive base 421 to move linearly. Base 421 then drives plasma gun 311 to move synchronously, which is used to adjust the distance between the nozzle of plasma gun 311 and the position of the mold to be deburred. When push rod 324 moves with base 421, it synchronously drives rack 327 to move linearly along slide rail 323 through slider 325. Rack 327 synchronously drives gear 326 to rotate, and drives the control knob of flow valve 322 to rotate, thereby adjusting the plasma gas output flow rate and spray intensity of spray gun mechanism 31.

[0035] Example 2: Based on Example 1 above, a plasma deburring device for automotive headlight molds equipped with an industrial robot further includes an angle adjustment unit 5. The angle adjustment unit 5 has at least a traction mechanism 51 for synchronously outputting traction force and driving the spray gun mechanism 31 to gradually deflect and change the plasma spray angle when the spacing of the spray gun mechanism 31 is adjusted, and an adjustment mechanism 52 for adjusting the traction angle of the traction mechanism 51 so that the spray gun mechanism 31 can achieve different deflection angle ranges when the spacing is adjusted. The traction mechanism 51 includes a crank 511, a traction guide rail 512, and a guide wheel 513. One end of the crank 511 is fixedly connected to the side of the plasma gun 311 away from the base 421 by welding. The guide wheel 513 is rotatably connected to the other end of the crank 511 through a wheel axle and a bearing. The traction guide rail 512 is located inside the main body 1 of the equipment. The guide wheel 513 is embedded in the guide groove of the traction guide rail 512 and can slide along the guide groove. It should be noted that when the plasma gun 311 adjusts the distance between itself and the position to be deburred on the mold, that is, when the drive mechanism 41 and the feed guide mechanism 42 drive the spray gun mechanism 31 to move and adjust the distance between the nozzle output end of the spray gun mechanism 31 and the position to be deburred on the car lamp mold, the plasma gun 311 drives the crank 511 to move synchronously. Through the traction guide rail 512, the guide wheel 513 is guided, so that the crank 511 drives the plasma gun 311 to gradually deflect and change the plasma spray angle.

[0036] Example 3: Based on Example 2 above, the adjustment mechanism 52 includes a positioning frame 521, an arc-shaped guide groove 522, a second motor 523, and a limiting wheel 524; The positioning frame 521 is fixedly connected to the inner wall of the main body 1 by bolts, the second motor 523 is fixedly connected to one side of the positioning frame 521 by bolts, one end of the traction guide rail 512 is fixedly connected to the output shaft of the second motor 523 by a coupling, the inner wall of the positioning frame 521 is provided with an arc-shaped guide groove 522, and the limiting wheel 524 is embedded in the arc-shaped guide groove 522 and can slide along the arc-shaped guide groove 522. The limiting wheel 524 is rotatably connected to the end of the traction guide rail 512 away from the second motor 523 by a wheel axle and bearing. It should be noted that when motor 2 523 starts, it drives the guide rail 512 to rotate. The arc-shaped guide groove 522 and the limiting wheel 524 limit and guide the rotation trajectory of the guide rail 512 to ensure the stability of the guide rail 512 during rotation. That is, when motor 2 523 drives the guide rail 512 to rotate, it changes the stroke range and deflection direction of the deflection traction of the spray gun mechanism 31. Therefore, when the plasma gun 311 moves synchronously with the adjustment unit 4 to adjust the processing distance, the guide rail 512 adjusted by the adjustment mechanism 52 can drive the plasma gun 311 to achieve angle deflection of different amplitudes and directions through the guide wheel 513 and the crank 511.

[0037] This embodiment provides a plasma deburring device for automotive headlight molds equipped with an industrial robot, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] Working principle: When the device is working, the industrial robot 2 clamps and fixes the car light mold after injection molding, and moves the mold to the processing station inside the main body of the equipment 1 corresponding to the plasma unit 3 according to the preset trajectory; It should be noted that, since the interior of automotive headlight molds usually has a variety of irregular structures, including various fine holes, deep grooves, curved surfaces and thin-walled features, burrs are very likely to be generated at the opening edges and corners of these holes and grooves after injection molding. However, their walls are thin and their shapes are complex. If the nozzle of the plasma gun 311 is always kept in a fixed position, it is impossible to take into account the differences in depth and opening size of different holes and grooves. If the distance is too close, it may damage the thin-walled structure. If the distance is too far, the plasma energy density is insufficient to effectively remove the burrs at the bottom of the holes and grooves. Therefore, it is necessary to adjust the processing distance in real time according to the structural characteristics of different parts of the mold through the distance adjustment unit 4. Meanwhile, due to the energy decay of plasma during the spraying process, when the nozzle output end of the spray gun mechanism 31 is far away from the mold surface, the energy density of plasma reaching the workpiece surface will decrease accordingly. If the spacing is increased without adjusting the gas flow rate accordingly, the spraying intensity will be insufficient and the deburring efficiency will be reduced. Therefore, the flow adjustment mechanism 32 needs to be linked synchronously during the spacing adjustment process to increase or decrease the plasma gas flow rate accordingly while increasing or decreasing the spacing, so as to ensure that the plasma spraying intensity always matches the processing spacing. Furthermore, for burrs on the sidewalls of the slots and irregular curved surfaces, relying solely on spacing and flow rate adjustment is still insufficient to ensure that the plasma is sprayed at the optimal angle to the area to be deburred. Since the plasma gun 311 is always in working condition during the spacing adjustment process, if the spray angle is gradually changed simultaneously while adjusting the spacing, the plasma can be injected into the slot from different directions to clean the sidewall burrs, bottom burrs, and corner burrs of the slots in all directions, which can effectively improve the thoroughness and uniformity of deburring. The dynamic linkage adjustment of the above-mentioned spacing, flow rate and angle can be achieved by using a visual inspection camera or laser contour sensor installed inside the main body 1 to scan the surface of the mold to be processed in real time. The visual inspection camera or laser contour sensor is fixedly installed inside the upper part of the main body 1, with the lens facing the processing station, to collect contour data and burr distribution information of the mold surface in real time. After the industrial robot 2 moves the mold to the processing station, the vision inspection camera or laser contour sensor scans and identifies the mold surface, and sends the collected mold structural features, including the position, depth, opening size and burr distribution area of ​​the holes and slots, to the control system. The control system automatically plans the action parameters of the distance adjustment unit 4 and the angle adjustment unit 5 according to the preset processing strategy. That is, during the deburring process of a certain hole or slot or a specific position of the mold by the plasma gun 311, the vision inspection camera or laser contour sensor continuously provides position feedback, so that the device can accurately determine the current processing position and drive the distance adjustment unit 4 and the angle adjustment unit 5 to make adaptive adjustments. When deburring is required on the holes or specific locations of the mold, the control system starts motor 412 based on the feedback from visual inspection. Motor 412 drives lead screw 413 to rotate through the output shaft. Lead screw 413 drives threaded sleeve 414 to move along the axial direction of lead screw 413 through threaded engagement. Threaded sleeve 414 drives base 421 to move synchronously. Base 421 moves linearly under the guidance and limitation of slider 422 and slide rail 423, thereby driving plasma gun 311 to move synchronously in a linear direction and adjusting the distance between the nozzle output end of plasma gun 311 and the location of the mold to be deburred. During the movement of the base 421, the push rod 324 moves synchronously with the base 421. The push rod 324 pushes the rack 327 to slide linearly along the slide rail 323 through the slider 325. The rack 327 drives the gear 326 meshing with it to rotate. The gear 326 drives the control knob of the flow valve 322 to rotate synchronously, thereby adjusting the flow rate of the plasma gas entering the bellows 312. That is, when the plasma gun 311 is away from the mold surface, the opening of the flow valve 322 increases synchronously and the spray intensity increases. Conversely, when the plasma gun 311 is close to the mold surface, the opening of the flow valve 322 decreases synchronously and the spray intensity decreases, ensuring that the plasma energy density reaching the workpiece surface remains stable at different distances. Meanwhile, as the plasma gun 311 moves linearly with the base 421, the crank 511 fixedly connected to the surface of the plasma gun 311 moves synchronously. The guide wheel 513 at the other end of the crank 511 slides along the guide groove of the traction guide rail 512. Under the limiting constraint of the traction guide rail 512, the crank 511 drives the plasma gun 311 to gradually deflect around the rotational connection between it and the base 421, thereby gradually changing the plasma jet angle while adjusting the spacing. For different types of holes and specific processing positions, motor 2 523 can be started according to a preset program, driving the guide rail 512 to rotate around its connection point with the output shaft of motor 2 523. The arc-shaped guide groove 522 and the limiting wheel 524 limit and guide the rotation trajectory of the guide rail 512, changing the tilt angle and guide stroke range of the guide rail 512, thereby changing the motion trajectory and stroke range of the guide wheel 513 when sliding along the guide rail 512, so that the plasma gun 311 can deflect in different amplitudes and directions during the linear movement with the base 421, so as to meet the differentiated requirements of different hole depths, opening sizes and side wall inclination angles for the spray angle. By utilizing the coordinated linkage of the pitch adjustment unit 4, the flow adjustment mechanism 32, and the angle adjustment unit 5, and in conjunction with the industrial robot 2 to fix and adjust the position of the car lamp mold, the pitch adjustment, flow adjustment, and angle deflection are completed simultaneously during the dynamic processing of the plasma gun 311, thereby achieving all-round and efficient deburring of various holes, grooves, curved surfaces, and specific positions of the car lamp mold.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plasma deburring device for automotive headlight molds equipped with an industrial robot, comprising a main body (1) and an industrial robot (2) disposed on one side of the main body (1) for clamping, fixing, and adjusting the position of the automotive headlight mold, characterized in that, include: The plasma unit (3) has at least a spray gun mechanism (31) and a flow control mechanism (32). The pitch adjustment unit (4) has at least a drive mechanism (41) and a feed guide mechanism (42). Angle adjustment unit (5), the angle adjustment unit (5) having at least a traction mechanism (51) and an adjustment mechanism (52); When the drive mechanism (41) and the feed guide mechanism (42) drive the spray gun mechanism (31) to move, increasing or decreasing the distance between the nozzle output end of the spray gun mechanism (31) and the position to be deburred on the car lamp mold, the flow adjustment mechanism (32) is driven to move synchronously, increasing or decreasing the plasma gas flow rate and increasing the spray intensity. The traction mechanism (51) synchronously outputs traction force to drive the spray gun mechanism (31) to gradually deflect and change the plasma spray angle. When the adjustment mechanism (52) drives the traction mechanism (51) to change the traction stroke range and direction, and the spray gun mechanism (31) moves back and forth synchronously with the adjustment unit (4) to adjust the processing distance, the traction mechanism (51) can drive the spray gun mechanism (31) to achieve angle deflection of different amplitudes and directions.

2. The plasma deburring device for automotive headlight molds equipped with an industrial robot according to claim 1, characterized in that, The spray gun mechanism (31) includes: The plasma gun (311) is located inside the main body of the device (1); The bellows (312) is fixedly connected at the output end to the input end of the plasma gun (311) and is used to output plasma gas to the plasma gun (311). When the corrugated pipe (312) delivers plasma gas to the plasma gun (311), the plasma gun (311) outputs plasma gas through the nozzle and accurately sprays it to the position of the car lamp mold to be deburred, thereby achieving deburring of the car lamp mold.

3. The plasma deburring device for automotive headlight molds equipped with an industrial robot according to claim 2, characterized in that, The flow control mechanism (32) includes: The bracket (321) is fixedly connected to the inner wall of the main body (1) of the equipment. A flow valve (322) is provided on one side for fixed connection with the input end of the bellows (312). The flow valve (322) is fixedly connected to the inner wall of the main body (1) of the equipment, and the input end of the flow valve (322) is connected to the external plasma supply equipment. When the spray gun mechanism (31) adjusts the distance between itself and the mold to be deburred, the output flow rate and spray intensity of the plasma gas of the spray gun mechanism (31) are adjusted by rotating the flow valve (322) control knob.

4. The plasma deburring device for automotive headlight molds equipped with an industrial robot according to claim 3, characterized in that, The inner wall of the bracket (321) is fixedly connected to a slide rail (323), and a slider (325) is slidably connected to the surface of the slide rail (323). A rack (327) is fixedly connected to the side of the slider (325) away from the slide rail (323). A gear (326) is meshed with the side of the rack (327) away from the slider (325). The axial side of the gear (326) is fixedly connected to the axial side of the flow valve (322) control knob, which is used to drive the flow valve (322) control knob to rotate in both directions. When the rack (327) moves linearly along the slide rail (323) via the slider (325), it synchronously drives the gear (326) to rotate and drives the control knob of the flow valve (322) to rotate, thereby adjusting the output flow rate and spray intensity of the plasma gas of the spray gun mechanism (31).

5. The plasma deburring device for automotive headlight molds equipped with an industrial robot according to claim 4, characterized in that, The top of the rack (327) is fixedly connected to a push rod (324) for connection with the feed guide mechanism (42). When the push rod (324) moves with the feed guide mechanism (42), it synchronously drives the rack (327) to move.

6. The plasma deburring device for automotive headlight molds equipped with an industrial robot according to claim 5, characterized in that, The drive mechanism (41) includes: The mounting bracket (411) is surface-fixed to the inner wall of the main body of the equipment (1); Motor 1 (412) is fixedly connected to the top of the fixed frame (411) at the bottom, and is fixedly connected to the lead screw (413) through the output shaft. The bottom of the lead screw (413) is rotatably connected to the inner wall of the fixed frame (411). The threaded sleeve (414) has its inner wall threadedly connected to the surface of the lead screw (413); When the motor (412) is started, it drives the lead screw (413) to rotate and uses the feed guide mechanism (42) to restrict the movement trajectory of the spray gun mechanism (31), so that the threaded sleeve (414) drives the spray gun mechanism (31) to move.

7. The plasma deburring device for automotive headlight molds equipped with an industrial robot according to claim 6, characterized in that, The feed guide mechanism (42) includes: The base (421) is fixedly connected to one side of the threaded sleeve (414) on one side and rotatably connected to the surface of the plasma gun (311) on the other side. The slide rail 2 (423) is fixedly connected to the inner wall of the fixed frame (411) at both ends. The inner wall is slidably connected to the slider 2 (422). The side of the slider 2 (422) away from the slide rail 2 (423) is fixedly connected to the side of the base (421) away from the plasma gun (311). When the threaded sleeve (414) drives the base (421) to move, the base (421) is limited and guided by the slide rail (423) and the slider (422), so that the base (421) drives the plasma gun (311) to move synchronously, which is used to adjust the distance between the nozzle of the plasma gun (311) and the position of the mold to be deburred.

8. The plasma deburring device for automotive headlight molds equipped with an industrial robot according to claim 7, characterized in that, The traction mechanism (51) includes: The crank (511) is fixedly connected at one end to the side of the plasma gun (311) away from the base (421), and the other end is rotatably connected to the guide wheel (513). The guide rail (512) is located inside the main body (1) of the equipment and is internally slidably connected to the surface of the guide wheel (513); When the plasma gun (311) adjusts the distance between itself and the mold to be deburred, the guide wheel (513) is guided by the guide rail (512), so that the crank (511) drives the plasma gun (311) to gradually deflect and change the plasma spray angle.

9. A plasma deburring device for automotive headlight molds equipped with an industrial robot according to claim 8, characterized in that, The adjustment mechanism (52) includes: The positioning frame (521) is fixedly connected to the inner wall of the main body (1) of the equipment, and a motor (523) is fixedly connected to one side. The motor (523) is fixedly connected to one end of the traction guide rail (512) through the output shaft. When the second motor (523) is started, it drives the guide rail (512) to rotate, changing the travel range and deflection direction of the deflection traction of the spray gun mechanism (31).

10. A plasma deburring device for automotive headlight molds equipped with an industrial robot according to claim 9, characterized in that, The positioning frame (521) has an arc-shaped guide groove (522) on its inner wall. A limit wheel (524) is slidably connected to the inner wall of the arc-shaped guide groove (522). One end of the limit wheel (524) is rotatably connected to the end of the traction guide rail (512) away from the motor (523). When the second motor (523) drives the traction guide rail (512) to rotate, the arc-shaped guide groove (522) and the limiting wheel (524) limit and guide the rotation trajectory of the traction guide rail (512) to ensure the stability of the traction guide rail (512) during rotation.

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