Punching and grinding all-in-one machine for light guide plate

Abstract

The invention relates to the technical field of punching and grinding all-in-one machines, in particular to a light guide plate punching and grinding all-in-one machine which comprises a workbench, a light guide plate base material and a punching and grinding structure arranged on the upper surface of the workbench and used for improving the punching and grinding precision of the light guide plate base material. The punching and grinding structure comprises a smooth rod fixedly installed on the upper surface of the workbench, a grinding rod used for grinding and a plurality of grinding wires used for grinding the inner wall of a punched hole. The supporting structure is arranged on the upper surface of the workbench and used for supporting a light guide plate base material, and the supporting structure comprises a fixing frame fixedly installed on the upper surface of the workbench. According to the light guide plate base material punching and grinding device, by arranging the punching and grinding structure, in the machining process of the light guide plate base material, after punching machining of the light guide plate base material is completed, under the condition that the light guide plate base material does not need to be positioned again, grinding treatment can be conducted on an opening of the light guide plate base material, and therefore the machining efficiency and precision are improved.

Description

Technical Field

[0001] This invention relates to the field of drilling and grinding integrated machine technology, and in particular to a light guide plate drilling and grinding integrated machine. Background Technology

[0002] A light guide plate is a precision optical device that uses optical principles to guide light from a light source to a designated position. It is typically made of transparent polymer materials such as optical-grade acrylic and polycarbonate (PC). During the production and processing of light guide plates, to meet the assembly requirements with components such as brackets and heat sinks, or to achieve optical light output control in specific areas, precise holes need to be drilled on the surface of the light guide plate according to design requirements. At the same time, because the light guide plate material is relatively brittle, burrs are easily generated on the hole walls after drilling. If not treated, this will affect the subsequent assembly accuracy and optical performance. Therefore, the drilled areas need to be ground to remove the burrs.

[0003] However, in actual processing, the existing process requires two steps: first, the light guide plate is clamped and positioned to complete the drilling; after drilling, the positioning is released and the light guide plate is transferred to the grinding station; after arriving at the grinding station, the light guide plate needs to be clamped and positioned again before the grinding process can be started. During this process, the reference of the two positioning is prone to deviation, which can easily lead to a mismatch between the grinding position and the drilling position, resulting in burr residue or damage to the light guide plate substrate, increasing the processing defect rate.

[0004] Therefore, a light guide plate drilling and grinding integrated machine is proposed. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that the reference of two positioning is prone to deviation, which can easily lead to a mismatch between the grinding position and the drilling position, resulting in burr residue or damage to the light guide plate substrate. Therefore, a light guide plate drilling and grinding integrated machine is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a light guide plate drilling and grinding integrated machine, comprising a worktable and a light guide plate substrate, wherein a drilling and grinding structure is disposed on the upper surface of the worktable to improve the drilling and grinding accuracy of the light guide plate substrate, the drilling and grinding structure comprising a smooth rod fixedly installed on the upper surface of the worktable, a grinding rod for grinding, and a plurality of grinding wires for grinding the inner wall of the hole; A support structure disposed on the upper surface of the workbench for supporting the light guide plate substrate, the support structure including a fixed frame fixedly installed on the upper surface of the workbench, a support plate for supporting the light guide plate substrate, and a pressure plate for limiting the position of the light guide plate substrate. A protective structure disposed on the surface of the worktable to prevent the light guide plate substrate from being impacted. The protective structure includes a circular rod that slides through the worktable and a protective plate for shielding the light guide plate substrate.

[0007] The effects achieved by the above-mentioned components are as follows: By setting up a drilling and grinding structure, during the processing of the light guide plate substrate, after the drilling process is completed, the openings in the light guide plate substrate can be ground without repositioning the light guide plate substrate, thereby improving processing efficiency and accuracy. By setting up a support structure, during the processing of the light guide plate substrate, the light guide plate can be supported by a support plate, and at the same time, the light guide plate can be limited by a pressure plate to ensure that the position of the light guide plate remains fixed during processing, avoiding the situation where the light guide plate vibrates and the drilling or grinding accuracy decreases. By setting up a protective structure, during the adjustment of the position of the light guide plate, the protective plate can prevent the light guide plate substrate from being hit and affecting the subsequent processing accuracy, and can also prevent the support plate from accidentally hitting the staff and causing injury.

[0008] Preferably, a bracket is slidably connected to the circumferential surface of the smooth rod; a first electric actuator fixedly connected to the bracket is fixedly connected to the upper surface of the worktable; a bidirectional lead screw is rotatably connected inside the bracket; a servo motor fixedly connected to the bidirectional lead screw is fixedly connected to the surface of the bracket; two moving plates are threadedly connected to the circumferential surface of the bidirectional lead screw; a guide rod is fixedly connected to the surface of the bracket and slidably connected to the moving plate; a slide is slidably connected to the surface of the moving plate; a second electric actuator fixedly connected to the slide is fixedly connected to the surface of the moving plate and fixedly connected to the slide; a drive shaft is rotatably connected inside the slide; and a drive motor fixedly connected to the drive shaft is fixedly connected to the surface of the slide. The upper end is rotatably connected to an upper rotating shaft, and a drill bit is detachably installed at the lower end of the upper rotating shaft. A first upper gear is fixedly connected to the circumferential surface of the transmission shaft, and a second upper gear is fixedly connected to the circumferential surface of the upper rotating shaft. The tooth surfaces of the first and second upper gears mesh together and are fitted with an upper synchronous belt. The lower end of the slide is rotatably connected to a lower rotating shaft, and a grinding rod is detachably installed at the upper end of the lower rotating shaft. The circumferential surface of the grinding rod has several grinding grooves, and the grinding wire is fixedly installed in the grinding grooves. A first lower gear is fixedly connected to the circumferential surface of the transmission shaft, and a second lower gear is fixedly connected to the circumferential surface of the lower rotating shaft. The tooth surfaces of the first and second lower gears mesh together and are fitted with a lower synchronous belt.

[0009] The aforementioned components achieve the following effects: After the light guide plate substrate is positioned, the first electric actuator is activated to push the bracket to slide along the smooth rod. Then, the servo motor is activated to drive the bidirectional lead screw to rotate, causing the two moving plates to synchronously adjust their spacing along the guide rod, ensuring the drill bit is aligned with the drilling point on the light guide plate substrate. Subsequently, the second electric actuator is activated to push the slide table downwards, simultaneously activating the drive motor. The drive motor drives the transmission shaft to rotate at high speed. The transmission shaft, through the first upper gear and upper synchronous belt, drives the second upper gear and upper rotating shaft to rotate, thereby driving the drill bit to rotate at high speed. The downward movement of the slide table and the rotation of the drill bit are synchronized, resulting in a drilling depth of [missing information]. The drilling depth is controlled by the stroke of the second electric actuator. After the drill bit penetrates the substrate and reaches the set depth, the second electric actuator is controlled to drive the slide table to return to its original position. The drill bit is then removed from the light guide plate substrate, and the drilling process is completed. The drive shaft drives the second lower gear and the lower rotating shaft to rotate through the first lower gear and the lower synchronous belt, which in turn drives the grinding rod to rotate at high speed. As the output end of the second electric actuator extends, the grinding rod passes through the surface hole of the light guide plate substrate. When the grinding rod can reach the inner wall of the hole, the inner wall of the hole can be ground using the grinding groove to remove burrs. Afterward, the grinding wire will contact the hole wall to remove the burrs remaining after drilling.

[0010] Preferably, the vertical cross-section of the grinding wire is U-shaped.

[0011] The effect achieved by the above components is that by setting the grinding wire into a "U" shape, when the grinding rod cannot be pressed against the inner wall of the hole, the grinding wire can be wrapped around the burr surface during rotation, thereby facilitating the removal of the burr.

[0012] Preferably, a plurality of the grinding wires are arranged in a staggered array along the radial direction of the grinding rod.

[0013] The effect achieved by the above components is that the multiple grinding wires are arranged in a staggered array along the radial direction of the grinding rod, which can avoid grinding dead angles and fully remove burrs.

[0014] Preferably, a baffle is fixedly connected to the surface of the slide table, and both the drive shaft and the lower rotating shaft are rotatably connected to the baffle, with the baffle located above the lower synchronous belt.

[0015] The effect achieved by the above components is that the baffle on the surface of the slide table can prevent debris from falling into the lower timing belt, ensuring the normal operation of the lower timing belt.

[0016] Preferably, an impeller is fixedly connected to the circumferential surface of the drive shaft.

[0017] The effect achieved by the above components is that the impeller on the drive shaft rotates synchronously, and the airflow generated can dissipate heat from the grinding area and blow plastic debris away from the hole wall and the surface of the light guide plate substrate.

[0018] Preferably, a stepper motor is fixedly connected to the surface of the fixed frame, the output end of the stepper motor is fixedly connected to the support plate, a sliding frame is slidably connected to the inner wall of the support plate, a third electric actuator is fixedly connected to the surface of the sliding frame, the output end of the third electric actuator is fixedly connected to the pressure plate, a screw is threaded into the sliding frame, a locking block is rotatably connected to the lower end of the screw, the lower surface of the locking block is rough, the light guide plate substrate is located between the support plate and the pressure plate, and a plurality of ball bearing rods are fixedly connected to the lower surface of the support plate, the ball bearing rods abutting against the upper surface of the fixed frame.

[0019] The effect achieved by the above components is as follows: the sliding frame is pushed along the inner wall of the support plate, and the sliding frame will drive the third electric push rod and the pressure plate to move. When the pressure plate moves above the light guide plate substrate, the screw is rotated. The screw will drive the locking block to abut against the surface of the support plate through the thread, thus restricting the position of the sliding frame. Then the third electric push rod is activated. The output end of the third electric push rod pushes the pressure plate to move downward until the pressure plate and the support plate clamp the light guide plate substrate together, thus completing the limiting.

[0020] Preferably, the slide is fixedly connected to a support ring relative to the position of the drill bit, and the support ring abuts against the lower surface of the light guide plate substrate.

[0021] The effect achieved by the above components is that the support ring can continuously abut against the lower surface of the light guide plate substrate, preventing the light guide plate substrate from being deformed during the drilling process and affecting the drilling accuracy.

[0022] Preferably, the protective plate is fixedly installed on the upper end of the round rod, the lower end of the round rod is fixedly connected to a traction rope, the lower end of the traction rope is fixedly connected to a foot ring, a spring is sleeved on the circumference of the round rod, and the two ends of the spring are fixedly connected to the round rod and the worktable, respectively.

[0023] The aforementioned components achieve the following effect: Before processing the light guide plate substrate, the worker first steps on the foot ring. The traction rope follows the foot ring, causing the round rod to slide downwards. The round rod then causes the protective plate to slide downwards and compress the spring. Moving the protective plate downwards facilitates the subsequent placement of the light guide plate substrate. After releasing the foot ring, the spring extends, and the round rod slides upwards with the help of the spring force, allowing the protective plate to return to its original position. The protective plate can shield the light guide plate substrate from the worker, preventing the light guide plate substrate from being bumped during subsequent adjustments to its position.

[0024] Preferably, an elastic block is fixedly connected to the circumferential surface of the round rod, and the upper end of the elastic block abuts against the surface of the worktable.

[0025] The effect achieved by the above components is as follows: the sliding of the round rod will cause the elastic block to slide. When the elastic block hits the worktable, it will prevent the round rod from continuing to slide, so that the protective plate can work normally. Furthermore, the elastic block will deform after contacting the worktable to provide cushioning.

[0026] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, by setting a drilling and grinding structure, during the processing of the light guide plate substrate, after the drilling of the light guide plate substrate is completed, the opening of the light guide plate substrate can be ground without repositioning the light guide plate substrate, thereby improving processing efficiency and accuracy.

[0027] 2. In this invention, by setting a support structure, the light guide plate can be supported by a support plate during the processing of the light guide plate substrate, and the light guide plate can be limited by a pressure plate to ensure that the position of the light guide plate remains fixed during the processing, thus avoiding the situation where the drilling or grinding accuracy decreases due to the vibration of the light guide plate.

[0028] 3. In this invention, by setting a protective structure, the protective plate can prevent the light guide plate substrate from being hit and affecting the subsequent processing accuracy during the adjustment of the light guide plate position. At the same time, it can also prevent the pallet from accidentally hitting the staff and causing injury to the staff. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the workbench of the present invention; Figure 3 This is a schematic diagram of the light guide plate substrate, the drilling and grinding structure, and the support structure of the present invention; Figure 4 This is a schematic diagram of the structure of the bracket and fixing frame of the present invention; Figure 5 This is a schematic diagram of the split structure at the movable plate of the present invention; Figure 6 This is a schematic diagram of the split structure at another angle of the movable plate of the present invention; Figure 7 This is a schematic diagram of the structure of the grinding rod of the present invention; Figure 8 This is a partial structural diagram of the support structure of the present invention; Figure 9 This is a schematic cross-sectional view of the sliding frame of the present invention; Figure 10 This is a schematic diagram of the protective structure of the present invention.

[0030] Legend: 1. Worktable; 2. Light guide plate substrate; 3. Drilling and grinding structure; 301. Smoothing rod; 302. Support; 303. First electric actuator; 304. Guide rod; 305. Bidirectional lead screw; 306. Servo motor; 307. Moving plate; 308. Slide table; 309. Second electric actuator; 310. Drive motor; 311. Transmission shaft; 312. Upper rotating shaft; 313. Drill bit; 314. First upper gear; 315. Second upper gear; 316. Upper synchronous belt; 317. Lower rotating shaft; 318. Grinding rod; 319. Grinding wheel. Grooving; 320, Grinding wire; 321, First lower gear; 322, Second lower gear; 323, Lower synchronous belt; 324, Baffle; 325, Impeller; 4, Support structure; 401, Fixed frame; 402, Stepper motor; 403, Support plate; 404, Sliding frame; 405, Third electric push rod; 406, Pressure plate; 407, Screw; 408, Clamping block; 409, Support ring; 410, Ball bearing rod; 5, Protective structure; 51, Round rod; 52, Protective plate; 53, Traction rope; 54, Foot ring; 55, Spring; 56, Elastic block. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0033] like Figures 1-10 As shown, the present invention provides a light guide plate drilling and grinding integrated machine, including a worktable 1 and a light guide plate substrate 2. A drilling and grinding structure 3 is disposed on the upper surface of the worktable 1 to improve the drilling and grinding accuracy of the light guide plate substrate 2. The drilling and grinding structure 3 includes a smooth rod 301 fixedly installed on the upper surface of the worktable 1, a grinding rod 318 for grinding, and a plurality of grinding wires 320 for grinding the inner wall of the hole. The support structure 4 is provided on the upper surface of the workbench 1 to support the light guide plate substrate 2. The support structure 4 includes a fixing frame 401 fixedly installed on the upper surface of the workbench 1, a support plate 403 for supporting the light guide plate substrate 2, and a pressure plate 406 for limiting the light guide plate substrate 2. A protective structure 5 is provided on the surface of the workbench 1 to prevent the light guide plate substrate 2 from being collided with. The protective structure 5 includes a round rod 51 that slides through the workbench 1 and a protective plate 52 for shielding the light guide plate substrate 2.

[0034] The specific configuration and function of its drilling and grinding structure 3, support structure 4, and protective structure 5 will be explained below.

[0035] like Figures 2-7As shown, a bracket 302 is slidably connected to the circumferential surface of the smooth rod 301. A first electric actuator 303, fixedly connected to the bracket 302, is fixedly connected to the upper surface of the worktable 1. A bidirectional lead screw 305 is rotatably connected inside the bracket 302. A servo motor 306, fixedly connected to the bidirectional lead screw 305, is fixedly connected to the surface of the bracket 302. Two moving plates 307 are threadedly connected to the circumferential surface of the bidirectional lead screw 305. A guide rod 304 is fixedly connected to the surface of the bracket 302 and slidably connected to the moving plate 307. A slide table 308 is slidably connected to the surface of the moving plate 307. A second electric actuator 309, fixedly connected to the slide table 308, is fixedly connected to the surface of the moving plate 307 and fixedly connected to the slide table 308. A drive shaft 311 is rotatably connected inside the slide table 308. A drive motor 310 is fixedly connected to the surface of the slide 308 and is fixedly connected to the drive shaft 311. An upper rotating shaft 312 is rotatably connected to the upper end of the slide 308. A drill bit 313 is detachably installed at the lower end of the upper rotating shaft 312. A first upper gear 314 is fixedly connected to the circumferential surface of the drive shaft 311, and a second upper gear 315 is fixedly connected to the circumferential surface of the upper rotating shaft 312. The tooth surfaces of the first upper gear 314 and the second upper gear 315 mesh together and are fitted with an upper synchronous belt 316. A lower rotating shaft 317 is rotatably connected to the lower end of the slide 308. A grinding rod 318 is detachably installed at the upper end of the lower rotating shaft 317. Several grinding grooves 319 are opened on the circumferential surface of the grinding rod 318. Grinding wires 320 are fixedly installed in the grinding grooves 319. A drive motor 310 is fixedly connected to the circumferential surface of the drive shaft 311. The first lower gear 321 and the lower rotating shaft 317 are fixedly connected to the circumferential surface of the second lower gear 322. The tooth surfaces of the first lower gear 321 and the second lower gear 322 mesh together and are fitted with a lower synchronous belt 323. After the light guide plate substrate 2 is positioned, the first electric actuator 303 is activated to push the bracket 302 to slide along the smooth rod 301. Then, the servo motor 306 is activated to drive the bidirectional lead screw 305 to rotate, so that the two moving plates 307 can synchronously adjust the distance along the guide rod 304 to ensure that the drill bit 313 is aligned with the drilling point of the light guide plate substrate 2. Then, the second electric actuator 309 is activated to push the slide table 308 to move downward. At the same time, the drive motor 310 is activated, and the drive motor 310 drives the transmission shaft 311 to rotate at high speed. The transmission shaft 311 passes through the first upper gear 314 and the upper synchronous belt. 316 drives the second upper gear 315 and the upper rotating shaft 312 to rotate, thereby driving the drill bit 313 to rotate at high speed. The downward movement of the slide table 308 is synchronized with the rotation of the drill bit 313. The drilling depth is controlled by the stroke of the second electric actuator 309. After the drill bit 313 penetrates the substrate and reaches the set depth, the second electric actuator 309 is controlled to drive the slide table 308 to return to its original position. The drill bit 313 disengages from the light guide plate substrate 2, and the drilling process is completed. The transmission shaft 311 drives the second lower gear 322 and the lower rotating shaft 317 to rotate through the first lower gear 321 and the lower synchronous belt 323, driving the grinding rod 318 to rotate at high speed. As the output end of the second electric actuator 309 extends, the grinding rod 318 will pass through the surface hole of the light guide plate substrate 2. When the grinding rod 318 can abut against the inner wall of the hole...The inner wall of the hole can be ground using the grinding groove 319 to remove burrs. Then, the grinding wire 320 will contact the hole wall to remove any remaining burrs from the drilling process.

[0036] The vertical cross-section of the grinding wire 320 is U-shaped. By setting the grinding wire 320 into a U-shaped structure, when the grinding rod 318 cannot abut against the inner wall of the hole, the grinding wire 320 can wrap around the burr surface during rotation, thus facilitating the scraping of burrs. Several grinding wires 320 are arranged in a staggered array along the radial direction of the grinding rod 318. This staggered array arrangement avoids grinding dead angles and ensures thorough removal of burrs. The surface of the slide table 308 is solid. A baffle 324 is fixedly connected to the slide 308. The drive shaft 311 and the lower rotating shaft 317 are rotatably connected to the baffle 324. The baffle 324 is located above the lower synchronous belt 323. The baffle 324 on the surface of the slide 308 can prevent debris from falling into the lower synchronous belt 323 and ensure that the lower synchronous belt 323 works normally. An impeller 325 is fixedly connected to the circumferential surface of the drive shaft 311. The impeller 325 on the drive shaft 311 rotates synchronously. The airflow generated can dissipate heat from the grinding area and blow plastic debris away from the hole wall and the surface of the light guide plate substrate 2.

[0037] like Figure 6 , Figure 8 and Figure 9 As shown, a stepper motor 402 is fixedly connected to the surface of the fixed frame 401. The output end of the stepper motor 402 is fixedly connected to the support plate 403. A sliding frame 404 is slidably connected to the inner wall of the support plate 403. A third electric push rod 405 is fixedly connected to the surface of the sliding frame 404. The output end of the third electric push rod 405 is fixedly connected to the pressure plate 406. A screw 407 is threaded into the sliding frame 404. A locking block 408 is rotatably connected to the lower end of the screw 407. The lower surface of the locking block 408 is rough. The light guide plate substrate 2 is located between the support plate 403 and the pressure plate 406. Several ball bearing rods 410 are fixedly connected to the lower surface of the support plate 403. The ball bearing rods 410 abut against the upper surface of the fixed frame 401 and push the sliding frame 404 along the inner wall of the support plate 403. The sliding frame 404 will... The third electric actuator 405 and the pressure plate 406 are moved. When the pressure plate 406 moves above the light guide plate substrate 2, the screw 407 is rotated. The screw 407 will drive the locking block 408 to abut against the surface of the support plate 403 through the thread, thus restricting the position of the sliding frame 404. Then the third electric actuator 405 is activated. The output end of the third electric actuator 405 pushes the pressure plate 406 downward until the pressure plate 406 and the support plate 403 clamp the light guide plate substrate 2 together, thus completing the limiting. The slide table 308 is fixedly connected to the position of the drill bit 313 with a support ring 409. The support ring 409 abuts against the lower surface of the light guide plate substrate 2. The support ring 409 can continuously abut against the lower surface of the light guide plate substrate 2 to prevent the light guide plate substrate 2 from being deformed during the drilling process, which would affect the drilling accuracy.

[0038] like Figure 2 and Figure 10 As shown, the protective plate 52 is fixedly installed on the upper end of the round rod 51. A traction rope 53 is fixedly connected to the lower end of the round rod 51, and a foot ring 54 is fixedly connected to the lower end of the traction rope 53. A spring 55 is fitted on the circumference of the round rod 51. The two ends of the spring 55 are fixedly connected to the round rod 51 and the worktable 1, respectively. Before processing the light guide plate substrate 2, the worker first steps on the foot ring 54. The traction rope 53 follows the foot ring 54 and drives the round rod 51 to slide downward. The round rod 51 drives the protective plate 52 to slide downward and compress the spring 55. Moving the protective plate 52 downward makes it easier to place the light guide plate substrate 2 later. After releasing the foot ring 54, the spring 55 extends. The round rod 51 will slide upward with the help of the spring force of the spring 55, so that the protective plate 52 is reset. The protective plate 52 can block the light guide plate substrate 2 from the worker, and prevent the light guide plate substrate 2 from being hit during the subsequent adjustment of the position of the light guide plate substrate 2. An elastic block 56 is fixedly connected to the circumference of the round rod 51. The upper end of the elastic block 56 abuts against the surface of the worktable 1. The sliding of the round rod 51 will drive the elastic block 56 to slide. When the elastic block 56 hits the worktable 1, it will prevent the round rod 51 from continuing to slide, so that the protective plate 52 can work normally. The elastic block 56 will deform after contacting the worktable 1 to buffer the movement.

[0039] The overall working principle is as follows: Before processing the light guide plate substrate 2, the operator first steps on the foot ring 54. The traction rope 53 follows the foot ring 54 and drives the round rod 51 to slide downward. The round rod 51 drives the protective plate 52 to slide downward and compress the spring 55. Moving the protective plate 52 downward makes it easier to place the light guide plate substrate 2. After the light guide plate substrate 2 is placed in a suitable position on the support plate 403, the support ring 409 will abut against the lower surface of the area to be drilled on the light guide plate substrate 2, providing local support for subsequent processing. Then, the sliding frame 404 is pushed along the inner wall of the support plate 403. The sliding frame 404 will drive the third electric push rod 405 and the pressure plate 406 to move. When the pressure plate 406 moves above the light guide plate substrate 2, the screw 407 is rotated. The screw 407 will drive the locking block 408 to abut against the surface of the support plate 403 through the thread. The position of the sliding frame 404 is restricted, and then the third electric actuator 405 is activated. The output end of the third electric actuator 405 pushes the pressure plate 406 downward until the pressure plate 406 and the support plate 403 clamp the light guide plate substrate 2 together, completing the limit. Then the foot ring 54 is released. At this time, the spring 55 extends, and the round rod 51 slides upward with the help of the spring force of the spring 55, so that the protective plate 52 is reset. The protective plate 52 can block the light guide plate substrate 2 from being hit by the worker during the subsequent adjustment of the position of the light guide plate substrate 2. The sliding of the round rod 51 will drive the elastic block 56 to slide. When the elastic block 56 hits the worktable 1, it will prevent the round rod 51 from continuing to slide, so that the protective plate 52 can work normally. The elastic block 56 will deform after contacting the worktable 1 to buffer.

[0040] After the light guide plate substrate 2 is positioned, the first electric actuator 303 is activated to push the bracket 302 to slide along the smooth rod 301. Then, the servo motor 306 is activated to drive the bidirectional lead screw 305 to rotate, so that the two moving plates 307 can synchronously adjust their spacing along the guide rod 304 to ensure that the drill bit 313 is aligned with the drilling point of the light guide plate substrate 2. Subsequently, the second electric actuator 309 is activated to push the slide table 308 downward. At the same time, the drive motor 310 is activated, which drives the transmission shaft 311 to rotate at high speed. The transmission shaft 311 drives the second upper gear 315 and the upper rotating shaft 312 to rotate through the first upper gear 314 and the upper synchronous belt 316, thereby driving the drill bit 313 to rotate at high speed and the slide table 308 to move downward. Synchronous with the rotation of drill bit 313, the drilling depth is controlled by the stroke of the second electric actuator 309. After drill bit 313 penetrates the light guide plate substrate 2 and reaches the set depth, the second electric actuator 309 is controlled to drive the slide table 308 to return upward, and drill bit 313 disengages from the light guide plate substrate 2, completing the drilling process. During this process, support ring 409 continuously abuts against the lower surface of light guide plate substrate 2 to prevent the light guide plate substrate 2 from being deformed during drilling, affecting the drilling accuracy. At this time, drive shaft 311 drives second lower gear 322 and lower rotating shaft 317 to rotate through first lower gear 321 and lower synchronous belt 323, driving grinding rod 318 to rotate at high speed. As the output end of the second electric actuator 309... As the grinding rod 318 extends, it passes through the surface hole of the light guide plate substrate 2. When the grinding rod 318 can abut against the inner wall of the hole, the inner wall of the hole can be ground using the grinding groove 319 to remove burrs. Then, the grinding wire 320 will contact the hole wall to remove the burrs remaining after drilling. At the same time, the grinding wire 320 can be retracted into the grinding groove 319 after being over-compressed, so that the grinding rod 318 can pass through the light guide plate substrate 2 normally. On this basis, by setting the grinding wire 320 into a "U" shape, when the grinding rod 318 cannot abut against the inner wall of the hole, the grinding wire 320 can wrap around the burr surface during rotation, so as to facilitate the scraping off of burrs. And several grinding wires 320 can also be used to remove burrs. The 20 blades are arranged in a staggered array along the radial direction of the grinding rod 318, which can avoid grinding dead angles and fully remove burrs. At the same time, the impeller 325 on the drive shaft 311 rotates synchronously, and the airflow generated can dissipate heat from the grinding area and blow plastic debris away from the hole wall and the surface of the light guide plate substrate 2. The baffle 324 on the surface of the slide table 308 can prevent debris from falling into the lower synchronous belt 323 and ensure the normal operation of the lower synchronous belt 323. Therefore, in the process of processing the light guide plate substrate 2, after the drilling of the light guide plate substrate 2 is completed, the opening of the light guide plate substrate 2 can be ground without repositioning the light guide plate substrate 2, thereby improving processing efficiency and accuracy.

[0041] After completing the drilling and grinding process on one side of the light guide plate substrate 2, the output end of the first electric push rod 303 is extended to move the slide table 308 away from the support plate 403. Then, the output end of the stepper motor 402 is rotated, and the support plate 403 will drive the light guide plate substrate 2 to rotate. After the light guide plate substrate 2 has rotated 180 degrees, the first electric push rod 303 and the servo motor 306 are controlled to adjust the position of the drill bit 313 and the grinding rod 318. This allows drilling and grinding on the other side of the light guide plate substrate 2 without needing to reposition it, thereby further improving processing efficiency. During the rotation of the support plate 403, the protective plate 52 can prevent the light guide plate substrate 2 from being hit and affecting the subsequent processing accuracy. It can also prevent the support plate 403 from accidentally hitting the staff and causing injury.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A light guide plate drilling and grinding integrated machine, comprising a worktable (1) and a light guide plate substrate (2), characterized in that: A drilling and grinding structure (3) is provided on the upper surface of the worktable (1) to improve the drilling and grinding accuracy of the light guide plate substrate (2). The drilling and grinding structure (3) includes a smooth rod (301) fixedly installed on the upper surface of the worktable (1), a grinding rod (318) for grinding, and several grinding wires (320) for grinding the inner wall of the hole. A support structure (4) is provided on the upper surface of the workbench (1) for supporting the light guide plate substrate (2). The support structure (4) includes a fixed frame (401) fixedly installed on the upper surface of the workbench (1), a support plate (403) for supporting the light guide plate substrate (2), and a pressure plate (406) for limiting the light guide plate substrate (2). A protective structure (5) is provided on the surface of the worktable (1) to prevent the light guide plate substrate (2) from being collided with. The protective structure (5) includes a round rod (51) that slides through the worktable (1) and a protective plate (52) for shielding the light guide plate substrate (2).

2. The integrated drilling and grinding machine for light guide plates according to claim 1, characterized in that: A bracket (302) is slidably connected to the circumferential surface of the smooth rod (301). A first electric actuator (303) fixedly connected to the bracket (302) is fixedly connected to the upper surface of the worktable (1). A bidirectional lead screw (305) is rotatably connected inside the bracket (302). A servo motor (306) fixedly connected to the bidirectional lead screw (305) is fixedly connected to the surface of the bracket (302). Two moving plates (307) are threadedly connected to the circumferential surface of the bidirectional lead screw (305). The surface of the bracket (302) A guide rod (304) is fixedly connected to a movable plate (307), the guide rod (304) is slidably connected to the movable plate (307), a slide table (308) is slidably connected to the surface of the movable plate (307), a second electric actuator (309) is fixedly connected to the surface of the movable plate (307) and fixedly connected to the slide table (308), a drive shaft (311) is rotatably connected inside the slide table (308), and a drive motor (310) is fixedly connected to the surface of the slide table (308) and fixedly connected to the drive shaft (311). The upper end of the slide (308) is rotatably connected to an upper rotating shaft (312), and the lower end of the upper rotating shaft (312) is detachably mounted with a drill bit (313). The circumferential surface of the transmission shaft (311) is fixedly connected to a first upper gear (314), and the circumferential surface of the upper rotating shaft (312) is fixedly connected to a second upper gear (315). The tooth surfaces of the first upper gear (314) and the second upper gear (315) mesh together to form an upper synchronous belt (316). The lower end of the slide (308) is rotatably connected to a lower rotating shaft (317), and the grinding rod... (318) is detachably installed on the upper end of the lower rotating shaft (317). The circumferential surface of the grinding rod (318) is provided with a plurality of grinding grooves (319). The grinding wire (320) is fixedly installed in the grinding groove (319). The circumferential surface of the transmission shaft (311) is fixedly connected to the first lower gear (321). The circumferential surface of the lower rotating shaft (317) is fixedly connected to the second lower gear (322). The tooth surfaces of the first lower gear (321) and the second lower gear (322) mesh together and are fitted with a lower timing belt (323).

3. The integrated drilling and grinding machine for light guide plates according to claim 2, characterized in that: The vertical cross-section of the grinding wire (320) is U-shaped.

4. The integrated drilling and grinding machine for light guide plates according to claim 2, characterized in that: Several of the grinding wires (320) are arranged in a staggered array along the radial direction of the grinding bar (318).

5. The integrated drilling and grinding machine for light guide plates according to claim 2, characterized in that: A baffle (324) is fixedly connected to the surface of the slide (308). The transmission shaft (311) and the lower rotating shaft (317) are rotatably connected to the baffle (324). The baffle (324) is located above the lower synchronous belt (323).

6. The integrated drilling and grinding machine for light guide plates according to claim 2, characterized in that: An impeller (325) is fixedly connected to the circumferential surface of the drive shaft (311).

7. The integrated drilling and grinding machine for light guide plates according to claim 2, characterized in that: A stepper motor (402) is fixedly connected to the surface of the fixed frame (401). The output end of the stepper motor (402) is fixedly connected to the support plate (403). A sliding frame (404) is slidably connected to the inner wall of the support plate (403). A third electric push rod (405) is fixedly connected to the surface of the sliding frame (404). The output end of the third electric push rod (405) is fixedly connected to the pressure plate (406). A screw (407) is threadedly connected to the inner thread of the sliding frame (404). A locking block (408) is rotatably connected to the lower end of the screw (407). The lower surface of the locking block (408) is rough. The light guide plate substrate (2) is located between the support plate (403) and the pressure plate (406). Several ball bearing rods (410) are fixedly connected to the lower surface of the support plate (403). The ball bearing rods (410) abut against the upper surface of the fixed frame (401).

8. The integrated drilling and grinding machine for light guide plates according to claim 7, characterized in that: The slide (308) is fixedly connected to a support ring (409) relative to the drill bit (313), and the support ring (409) abuts against the lower surface of the light guide plate substrate (2).

9. The integrated drilling and grinding machine for light guide plates according to claim 7, characterized in that: The protective plate (52) is fixedly installed on the upper end of the round rod (51). The lower end of the round rod (51) is fixedly connected to a traction rope (53). The lower end of the traction rope (53) is fixedly connected to a foot ring (54). A spring (55) is sleeved on the circumference of the round rod (51). The two ends of the spring (55) are fixedly connected to the round rod (51) and the workbench (1) respectively.

10. A light guide plate drilling and grinding integrated machine according to claim 9, characterized in that: An elastic block (56) is fixedly connected to the circumferential surface of the round rod (51), and the upper end of the elastic block (56) abuts against the surface of the workbench (1).

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