A fully automatic quality inspection machine for LCD panels

Abstract

The present invention relates to a fully automatic quality inspection machine for liquid crystal panels, comprising a base, a liquid crystal panel clamping module, a lifting module, a horizontal displacement module and a camera module, wherein the base is provided with the liquid crystal panel clamping module, the lifting module is provided outside the liquid crystal panel clamping module, the horizontal displacement module is provided above the lifting module, the camera module is provided on the horizontal displacement module, the camera module comprises a camera fixing plate, an edge camera, an intermediate camera and a flash, the camera fixing plate is fixed on the horizontal displacement module, the edge camera is located at the four corners of the camera fixing plate, the intermediate camera is located in the middle of the camera fixing plate, and the flash is located on both sides of the intermediate camera. The inspection machine of the invention realizes automatic detection of the quality of liquid crystal panels, ensures the inspection rate and inspection quality of liquid crystal panels and the factory quality of liquid crystal panels.

Description

Technical Field

[0001] The invention relates to a full-automatic quality inspection machine, in particular to a liquid crystal panel inspection machine. Background Art

[0002] As people's consumption demand for electronic products is increasing, LCD panels have become the mainstream choice in the display terminal field due to their advantages such as energy saving, small size and good optical effect. In order to ensure that the mass-produced LCD panels can meet the normal working requirements, yield testing is generally required before the LCD panels are put on the market. The traditional method is manual assisted contact and manual inspection and judgment results. The test steps are complicated, cumbersome, ineffective, and prone to missed inspections and incomplete inspections, which poses quality risks. In addition, manual inspections have inconsistent inspection standards. Different workers have different inspection standards. Even if the same worker has different inspection standards twice, the inspection standards will change. The consistency of the inspection standards cannot be guaranteed, resulting in uneven product quality. Summary of the invention

[0003] In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a fully automatic quality inspection machine for LCD panels, which realizes automatic detection of the quality of LCD panels, ensures the inspection rate and quality of LCD panels and the factory quality of LCD panels.

[0004] To achieve the above-mentioned purpose and other related purposes, the present invention provides a fully automatic quality inspection machine for liquid crystal panels, including a base, a liquid crystal panel clamping module, a lifting module, a horizontal displacement module and a camera module, the base is provided with the liquid crystal panel clamping module, the lifting module is provided on the outside of the liquid crystal panel clamping module, the horizontal displacement module is provided above the lifting module, the camera module is provided on the horizontal displacement module, the camera module includes a camera fixing plate, an edge camera, a middle camera and a flash, the camera fixing plate is fixed on the horizontal displacement module, the edge camera is provided at each of the four corners of the camera fixing plate, the middle camera is located in the middle position of the camera fixing plate, the flash is provided on each of the two sides of the middle camera, the liquid crystal panel clamping module includes a servo motor, a base, a wire The cam is connected with the support of the lifting link of the lifting link, and the support is connected with the support of the lifting link, and the support is connected with the support of the lifting link, and the support is connected with the support of the lifting link, and the support is connected with the support of the lifting link.

[0005] Preferably, the edge camera comprises an edge X servo motor, an edge X slide, an edge Y servo motor, an edge Y slide, an edge Z servo motor, an edge Z slide, an edge camera fixing frame, an edge fine-tuning knob and an edge lens, the edge X servo motor is connected to the edge X slide, the edge Y servo motor is connected to the edge Y slide, the edge Y slide is connected to the edge fine-tuning knob through an extension rod, the edge fine-tuning knob is connected to the edge Z servo motor, the edge Z servo motor is connected to the edge Z slide, the edge camera fixing frame is fixed on the edge Z slide, and the edge lens is fixed on the edge camera fixing frame.

[0006] Preferably, the lifting module includes a lifting bracket, a lifting servo motor, a lifting platform and a lifting slide rail. The lifting bracket is located on the base, and the lifting slide rails are provided on the inner side of each lifting bracket. The lifting platform is connected to the lifting slide rails, and the lifting servo motor is located between the lifting slide rails and connected to the lifting platform.

[0007] Preferably, the horizontal displacement module includes a horizontal servo motor, a horizontal slide rail and a horizontal slide table. The horizontal servo motor is fixed on the lifting platform and connected to the horizontal slide table. The camera module is provided on the horizontal slide table, and the horizontal slide table is arranged on the horizontal slide rail.

[0008] Preferably, the intermediate camera includes an intermediate coarse adjustment servo motor, an intermediate coarse adjustment slide, an intermediate fine adjustment servo motor, an intermediate fine adjustment slide, an intermediate lens fixing frame and an intermediate lens, the intermediate coarse adjustment servo motor is connected to the intermediate coarse adjustment slide, the intermediate coarse adjustment slide is connected to the intermediate fine adjustment servo motor, the intermediate fine adjustment servo motor is connected to the intermediate fine adjustment slide, the intermediate fine adjustment slide is connected to the intermediate lens fixing frame, and the intermediate lens fixing frame is connected to the intermediate lens.

[0009] Preferably, male buckles are provided at both ends of the handle, and female buckles are provided at positions on the flip plate corresponding to the male buckles, and the male buckles and the female buckles are adapted to each other.

[0010] Preferably, there are two liquid crystal panel clamping modules, which are respectively arranged on the base and located below the lifting module.

[0011] When the equipment is working, the servo motor starts working, drives the screw rod to rotate, and drives the connecting seat to move along the slide rail. The short rod pushes the long rod to rotate around the swivel, the flip plate tilts up, drives the backlight plate to tilt upward, and manually pulls the handle to pull the backlight plate out of the space formed by the clamping plate and the flip plate. After the LCD panel is placed in the backlight plate, the backlight plate is pushed into the space formed by the clamping plate and the flip plate, and the male buckle and the female buckle overlap. Then the servo motor works in the reverse direction to drive the backlight plate to reset. At this time, adjust the edge X servo motor, edge Y servo motor, edge Z servo motor, edge fine-tuning knob, middle coarse-tuning servo motor and middle fine-tuning servo motor to make the edge lens and the middle lens perpendicular to the LCD panel. The lifting servo motor drives the lifting platform to move downward, and the horizontal servo motor drives the horizontal slide to move to an appropriate position on the horizontal slide rail. The flash and the backlight plate light up, and the middle lens and the edge lens take pictures of the LCD panel, and the photos taken are summarized and analyzed to determine whether the surface of the LCD panel meets the factory requirements.

[0012] In summary, the invention has the following beneficial effects: by photographing and analyzing the LCD panel with the middle camera and the edge camera, it is determined whether there are spots and scratches on the product surface and whether the plane of the LCD panel is horizontal, and machine inspection replaces manual inspection, thereby improving the inspection rate of the product, ensuring the consistency of product inspection standards, and improving the inspection quality of the product; when placing the LCD panel manually in the traditional way, people bend over 90 degrees, which is labor-intensive. When the equipment places the material, the LCD panel clamping module flips 60 degrees to facilitate placement. The operator no longer needs to bend over 90 degrees, and the labor intensity is reduced; the dual LCD panel clamping modules work alternately, which improves the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the structure of a fully automatic quality inspection machine for liquid crystal panels.

[0014] Figure 2 It is a structural schematic diagram of the lifting module and the horizontal displacement module.

[0015] Figure 3 It is a structural schematic diagram of the LCD panel clamping module.

[0016] Figure 4 Schematic diagram of the structure of the edge camera.

[0017] Figure 5 This is a schematic diagram of the structure of the middle camera.

[0018] Figure 6 It is a schematic diagram of the structure after the male buckle and the female buckle are matched.

[0019] 1. Base; 2. LCD panel clamping module; 3. Lifting module; 4. Horizontal displacement module; 5. Camera module; 31. Lifting bracket; 32. Lifting servo motor; 33. Lifting platform; 34. Lifting slide rail; 41. Horizontal servo motor; 42. Horizontal slide rail; 43. Horizontal slide platform; 51. Camera fixing plate; 52. Edge camera; 53. Middle camera; 201. Servo motor 1; 202. Base; 203. Screw rod; 204. Slide rail 1; 205. Connecting seat; 206. Short rod; 207. Long rod; 208. Clamp plate; 209. Flip plate; 210. Backlight plate; 211. hand; 212, swivel; 213, female buckle; 214, male buckle; 215, slide rail 2; 520, extension rod; 521, edge X servo motor; 522, edge X slide; 523, edge Y servo motor; 524, edge Y slide; 525, edge Z servo motor; 526, edge Z slide; 527, edge camera holder; 528, edge fine-tuning knob; 529, edge lens; 531, middle coarse-tuning servo motor; 532, middle coarse-tuning slide; 533, middle fine-tuning servo motor; 534, middle fine-tuning slide; 535, middle lens holder; 536, middle lens. DETAILED DESCRIPTION

[0020] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0021] See also Figures 1 to 6 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0022] like Figures 1 to 6As shown, the present invention designs a fully automatic quality inspection machine for liquid crystal panels, including a base 1, a liquid crystal panel clamping module 2, a lifting module 3, a horizontal displacement module 4 and a camera module 5. The base 1 is provided with the liquid crystal panel clamping module 2, and the liquid crystal panel clamping module 2 is used to fix the liquid crystal panel. The lifting module 3 is provided on the outer side of the liquid crystal panel clamping module 2, and the lifting module 3 is used to drive the camera module 5 to move up and down. The horizontal displacement module 4 is provided above the lifting module 3, and the camera module 5 is provided on the horizontal displacement module 4. The horizontal displacement module 4 is used to drive the camera module 5 to move in the horizontal direction. The machine module 5 includes a camera fixing plate 51, an edge camera 52, an intermediate camera 53 and a flash. The camera fixing plate 51 is fixed on the horizontal displacement module 4. The four corners of the camera fixing plate 51 are each provided with an edge camera 52. The camera fixing plate 51 is used to fix the edge camera 52 and the intermediate camera 53. The intermediate camera 53 is located in the middle of the camera fixing plate 51. A flash is provided on each side of the intermediate camera 53. The flash is used to assist the intermediate camera 53 and the edge camera 52 in taking pictures. The liquid crystal panel clamping module 2 includes a servo motor 201, a base 202, a screw 20 3. Slide rail 1 204, connecting seat 205, short rod 206, long rod 207, clamp 208, flip plate 209, backlight plate 210, swivel 212 and handle 211. The servo motor 1 201 is located at the lower end of the base 202, the screw rod 203 is located at the upper end of the base 202, the slide rail 1 204 is located on both sides of the screw rod 203 and is connected to the base 202, the middle of the connecting seat 205 is connected to the screw rod 203, and the lower sides of the two ends of the connecting seat 205 are connected to the slide rail 1 204, the two ends of the connecting seat 205 are connected to the short rod 206, and the servo motor 1 201 is used to drive the connecting seat The receiving seat 205 moves in the direction of the slide rail 1 204, one end of the short rod 206 is connected to the middle position of the long rod 207, one end of the long rod 207 is connected to the clamping plate 208, and the other end is connected to the flip plate 209 through a swivel 212, the clamping plates 208 are vertically provided at both ends of the flip plate 209 along the width direction, the flip plate 209 and the clamping plates 208 form a rectangular cavity to facilitate the backlight panel 210 to move back and forth therein, a slide rail 215 is respectively provided on both sides of the backlight panel 210 contacting the flip plate 209, and the handle 211 is located on the side of the backlight panel 210 close to the outside.

[0023] See also Figure 4In this embodiment, the edge camera 52 includes an edge X servo motor 521, an edge X slide 522, an edge Y servo motor 523, an edge Y slide 524, an edge Z servo motor 525, an edge Z slide 526, an edge camera fixing frame 527, an edge fine-tuning knob 528 and an edge lens 529. The upper end of the edge X servo motor 521 is connected to the camera fixing plate 51, and the lower end is connected to the edge X slide 522. The edge X servo motor 521 is used to drive the edge lens 529 to move in the X-axis direction. The edge Y servo motor is connected to the edge Y slide. The edge Y servo motor 523 is used to drive the edge lens 529 to move in the X-axis direction. In order to drive the edge lens 529 to move in the Y-axis direction, the edge Y slide 524 is connected to the edge fine-tuning knob 528 through an extension rod 520, the edge fine-tuning knob 528 is connected to the edge Z servo motor 525, the edge fine-tuning knob 528 is used to fine-tune the edge lens 529, the edge Z servo motor 525 is connected to the edge Z slide 526, the edge Z servo motor is used to drive the edge lens 529 to move in the Z direction, the edge camera fixing frame 527 is fixed on the edge Z slide 526, and the edge lens 529 is fixed on the edge camera fixing frame 527.

[0024] See also Figure 2 In this embodiment, the lifting module 3 includes a lifting bracket 31, a lifting servo motor 32, a lifting platform 33 and a lifting slide rail 34. The lifting bracket 31 is located on the base. The lifting slide rails 34 are provided on the inner sides of the lifting bracket 31. The lifting bracket 31 is used to fix the lifting servo motor 32, the lifting platform 33 and the lifting slide rail 34. The lifting platform 33 is connected to the lifting slide rail 34. The lifting platform 33 is used to fix the camera module 5. The lifting servo motor 32 is located between the lifting slide rails 34 and is connected to the lifting platform 33. The lifting servo motor 32 is used to drive the lifting platform 33 to move up and down along the lifting slide rail 34.

[0025] See also Figure 3 In this embodiment, the horizontal displacement module 4 includes a horizontal servo motor 41, a horizontal slide rail 42 and a horizontal slide 43. The horizontal servo motor 41 is fixed on the lifting platform 33 and connected to the horizontal slide 43. The camera module 5 is provided on the horizontal slide 43, and the horizontal slide 43 is arranged on the horizontal slide rail 42. The horizontal servo motor 41 is used to drive the camera module 5 to move back and forth along the horizontal slide rail 42.

[0026] See also Figure 5In this embodiment, the intermediate camera 53 includes an intermediate coarse adjustment servo motor 531, an intermediate coarse adjustment slide 532, an intermediate fine adjustment servo motor 533, an intermediate fine adjustment slide 534, an intermediate lens fixing frame 535 and an intermediate lens 536. The upper end of the intermediate coarse adjustment servo motor 531 is connected to the camera fixing plate 51, and the lower end is connected to the intermediate coarse adjustment slide 532. The intermediate coarse adjustment servo motor 531 drives the intermediate coarse adjustment slide 532 to move to achieve the purpose of coarse adjustment of the position of the intermediate lens 536. The intermediate coarse adjustment slide 532 is connected to the intermediate fine adjustment servo motor 533, the intermediate fine adjustment servo motor 533 is connected to the intermediate fine adjustment slide 534, the intermediate fine adjustment slide 534 is connected to the intermediate lens fixing frame 535, and the intermediate lens fixing frame 535 is connected to the intermediate lens 536. The intermediate fine adjustment servo motor 533 is used to drive the intermediate fine adjustment slide 534 to move, thereby achieving the purpose of fine adjustment of the intermediate lens 536.

[0027] Please refer to 3 and 6. In this embodiment, male buckles 214 are provided at both ends of the handle 211. Female buckles 213 are provided at positions corresponding to the male buckles 214 on the flip plate 209. The male buckles 214 and the female buckles 213 are matched.

[0028] See also Figure 1 In this embodiment, there are two liquid crystal panel clamping modules 2, which are respectively arranged on the base 1 and located below the lifting module 3.

[0029] When the device is working, the servo motor 201 works to drive the screw rod 203 to rotate, and drives the connecting seat 205 to move along the slide rail 204, the short rod 206 pushes the long rod 207 to rotate around the swivel 212, the flip plate 209 is tilted, and the backlight plate 210 is driven to tilt upward, and the handle 211 is manually pulled to pull the backlight plate 210 out of the space formed by the clamping plate 208 and the flip plate 209, and then the liquid crystal panel is placed in the backlight plate 210, and then the backlight plate 210 is pushed into the space formed by the clamping plate 208 and the flip plate 209, the male buckle 214 and the female buckle 213 overlap, and then the servo motor 201 works in the reverse direction to drive the backlight plate 210 to reset. Then adjust the edge X servo motor 521, the edge Y servo motor 523, the edge Z servo motor 525, the edge fine-tuning knob 528, the middle coarse-tuning servo motor 531 and the middle fine-tuning servo motor 533 to make the edge lens 529 and the middle lens 536 perpendicular to the liquid crystal panel, the lifting servo motor 32 drives the lifting platform 33 to move downward, the horizontal servo motor 41 drives the horizontal slide 43 to move to a proper position on the horizontal slide rail 42, the flash and the backlight panel 210 light up, the middle lens 536 and the edge lens 529 take pictures of the liquid crystal panel, and the pictures taken are summarized and analyzed to determine whether the surface of the liquid crystal panel meets the factory requirements.

[0030] In summary, the invention has the following beneficial effects: by taking photos and analyzing the liquid crystal panel through the middle camera and the edge camera, it is determined whether there are spots and scratches on the product surface and whether the plane of the liquid crystal panel is horizontal, and the machine inspection replaces the manual inspection, which improves the inspection rate of the product, ensures the consistency of the product inspection standard, and improves the inspection quality of the product; when placing the liquid crystal panel manually, the worker bends 90 degrees, which is labor-intensive. When placing the material, the liquid crystal panel clamping module of the device flips 60 degrees, which is convenient for personnel to place, and the operator no longer needs to bend 90 degrees, and the labor intensity is reduced; the dual liquid crystal panel clamping modules work alternately, which improves the working efficiency of the equipment. Therefore, the invention overcomes the various defects of the prior art and has high industrial utilization value and practical value.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A fully automatic quality inspection machine for liquid crystal panels, characterized in that: The liquid crystal panel clamping module comprises a base, a liquid crystal panel clamping module, a lifting module, a horizontal displacement module and a camera module. The liquid crystal panel clamping module is arranged on the base, the lifting module is arranged on the outside of the liquid crystal panel clamping module, the horizontal displacement module is arranged above the lifting module, the camera module is arranged on the horizontal displacement module, the camera module comprises a camera fixing plate, an edge camera, a middle camera and a flash, the camera fixing plate is fixed on the horizontal displacement module, the edge camera is arranged at each of the four corners of the camera fixing plate, the middle camera is located in the middle of the camera fixing plate, and the middle camera is arranged on both sides. There is a flash lamp, and the liquid crystal panel clamping module includes a servo motor, a base, a screw rod, a slide rail, a connecting seat, a short rod, a long rod, a splint, a flip plate, a backlight plate, a swivel and a handle. The servo motor is located at the lower end of the base, the screw rod is located at the upper end of the base, the slide rail is located on both sides of the screw rod and is connected to the base, the middle of the connecting seat is connected to the screw rod connecting block, and the lower sides of the two ends of the connecting seat are connected to the slide rail, the two end ends of the connecting seat are connected to the short rod, one end of the short rod is connected to the middle position of the long rod, one end of the long rod is connected to the splint, and the other end is connected to the The flip plate is connected, and the clamping plates are vertically arranged at both ends of the flip plate in the width direction. The backlight plate is located in the space formed by the flip plate and the clamping plates. Two slide rails are respectively arranged on the two sides where the backlight plate contacts the flip plate. The handle is located on the side of the backlight plate close to the outside. The edge camera includes an edge X servo motor, an edge X slide, an edge Y servo motor, an edge Y slide, an edge Z servo motor, an edge Z slide, an edge camera fixing frame, an edge fine-tuning knob and an edge lens. The edge X servo motor is connected to the edge X slide, the edge Y servo motor is connected to the edge Y slide, and the The edge Y slide is connected to the edge fine-tuning knob through an extension rod, the edge fine-tuning knob is connected to the edge Z servo motor, the edge Z servo motor is connected to the edge Z slide, the edge camera fixing frame is fixed on the edge Z slide, and the edge lens is fixed on the edge camera fixing frame; the lifting module includes a lifting bracket, a lifting servo motor, a lifting platform and a lifting slide rail, the lifting bracket is located on the base, the lifting slide rails are respectively provided on the inner side of the lifting bracket, the lifting platform is connected to the lifting slide rails, the lifting servo motor is located between the lifting slide rails and connected to the lifting platform.

2. The fully automatic quality inspection machine for liquid crystal panels according to claim 1, characterized in that: The horizontal displacement module includes a horizontal servo motor, a horizontal slide rail and a horizontal slide table. The horizontal servo motor is fixed on the lifting platform and connected to the horizontal slide table. The camera module is arranged on the horizontal slide table, and the horizontal slide table is arranged on the horizontal slide rail.

3. The fully automatic quality inspection machine for liquid crystal panels according to claim 1, characterized in that: The intermediate camera includes an intermediate coarse adjustment servo motor, an intermediate coarse adjustment slide, an intermediate fine adjustment servo motor, an intermediate fine adjustment slide, an intermediate lens fixing frame and an intermediate lens. The intermediate coarse adjustment servo motor is connected to the intermediate coarse adjustment slide, the intermediate coarse adjustment slide is connected to the intermediate fine adjustment servo motor, the intermediate fine adjustment servo motor is connected to the intermediate fine adjustment slide, the intermediate fine adjustment slide is connected to the intermediate lens fixing frame, and the intermediate lens fixing frame is connected to the intermediate lens.

4. The fully automatic quality inspection machine for liquid crystal panels according to claim 1, characterized in that: Male buckles are provided at both ends of the handle, and female buckles are provided at positions on the flip plate corresponding to the male buckles, and the male buckles and the female buckles are adapted to each other.

5. The fully automatic quality inspection machine for liquid crystal panels according to claim 1, characterized in that: There are two liquid crystal panel clamping modules, which are respectively arranged on the base and located below the lifting module.

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