Multi-surface composite detection equipment for display backboard

Abstract

The invention relates to the technical field of intelligent manufacturing, and particularly provides a multi-surface composite detection device for a display backboard, which comprises a machine table, a workbench and a spatial displacement platform are arranged at the upper end of the machine table, and the spatial displacement platform comprises an X-axis displacement module, a Y-axis displacement module and a Z-axis displacement module. The movable end of the Z axial displacement module is provided with a detection module; the detection module comprises a support, the support is provided with a 2D size detection module and a rotating mechanism, the lower end of the rotating mechanism is provided with an assembling plate, and the lower end of the assembling plate is provided with a 3D size detection module, a cylinder perpendicularity detection module and a side 2D size detection module at the same time; according to the invention, detection functions are integrated, full-size detection of the display backboard can be completed through operation on one device, and the operation process is simplified; the detection work efficiency is greatly improved; and detection is carried out on one device, the reference is unified, errors caused by personnel operation are reduced, the detection precision is high, and the repeatability is good.

Description

Technical Field

[0001] The present invention relates to the field of intelligent manufacturing technology, and in particular to a multi-faceted composite detection device for a display back panel. Background Art

[0002] With the development of science and technology, electronic displays are used more and more widely in all walks of life. The back panel of the display is an important component of various car machines, monitors, and LCD TVs, and is used to support the structure of the entire display. The bending of the back panel will cause damage due to stress during the assembly process of the product. Therefore, the display panel needs to be inspected by testing equipment during the production process.

[0003] In traditional technology, the inspection of display backplanes requires the use of multiple inspection equipment and tools, such as imagers, three-coordinate measuring machines, calipers, feeler gauges, etc. to inspect multiple position features of the workpiece. This method cannot perform one-time multi-faceted inspection, and the inspection speed is slow, affecting work efficiency. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a multi-surface composite inspection device for a display back panel, so as to solve the problem that the prior art cannot perform one-time multi-surface inspection.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a multi-faceted composite detection device for a display back plate, comprising a machine platform, wherein a workbench and a spatial displacement platform are provided at the upper end of the machine platform, wherein the spatial displacement platform comprises a Y-axis displacement module, an X-axis displacement module mounted on the movable end of the Y-axis displacement module, and a Z-axis displacement module mounted on the movable end of the X-axis displacement module, wherein a detection module is mounted on the movable end of the Z-axis displacement module, and the detection end of the detection module corresponds to the upper part of the workbench; The detection module comprises: a bracket, on which a 2D size detection module is mounted; a rotating mechanism is mounted on the bracket through a rotating connector, a large hollow structure is provided in the central area of ​​the rotating mechanism, and a detection end of the 2D size detection module extends directly downward through the central area of ​​the rotating mechanism; an assembly plate is provided at the lower end of the rotating mechanism, and a 3D size detection module, a column verticality detection module, and a side 2D size detection module are simultaneously mounted at the lower end of the assembly plate; The 2D size detection module uses an industrial camera to detect the front two-dimensional size of the display back panel; The rotating mechanism adopts a DD motor; The 3D size detection module uses a line laser to emit laser light outward to detect the three-dimensional size of the display back panel; The column verticality detection module is used to detect the verticality of the column on the display back panel; The side D dimension detection module is used to detect the two-dimensional dimension of the side of the display back panel.

[0006] In one embodiment of the present invention, the 2D size detection module includes a first mounting frame, and the 2D size detection module is mounted on the bracket through the first mounting frame; the industrial camera is mounted on the first mounting frame.

[0007] In one embodiment of the present invention, the 3D size detection module includes a second mounting frame, and the 3D size detection module is mounted on the assembly plate through the second mounting frame; a first electric cylinder is mounted on the side end of the second mounting frame, and a first rotating motor is provided at the output end of the first electric cylinder, and a line laser is mounted on the output end of the first rotating motor.

[0008] In one embodiment of the present invention, the column verticality detection module uses a probe to detect the verticality of the column on the back panel of the display, and the column verticality detection module includes a third mounting frame, and the column verticality detection module is mounted on the lower end of the assembly plate through the third mounting frame; the side panel of the third mounting frame is equipped with a second electric cylinder, and the output end of the second electric cylinder is provided with a probe frame, and the probe is mounted on the probe frame.

[0009] In one embodiment of the present invention, the column verticality detection module uses a laser displacement sensor to detect the verticality of the column on the display back panel. The column verticality detection module includes a third mounting frame, and the laser displacement sensor is installed at the lower end of the third mounting frame.

[0010] In one embodiment of the present invention, the side 2D size detection module reflects the side of the display back panel through a prism and cooperates with an industrial camera to perform side two-dimensional size detection. The side 2D size detection module includes a fourth mounting frame, and the side 2D size detection module is mounted on the lower end of the assembly plate through the fourth mounting frame; the side plate of the fourth mounting frame is equipped with a third electric cylinder, and the output end of the third electric cylinder is provided with a second rotating motor, and the output end of the second rotating motor is provided with a prism bracket, and the prism is mounted on the prism bracket.

[0011] In one embodiment of the present invention, the side 2D size detection module performs side two-dimensional size detection through a horizontally arranged camera. The side 2D size detection module includes a fourth mounting frame, and the side panel of the fourth mounting frame is equipped with a third electric cylinder. The output end of the third electric cylinder is provided with a horizontally arranged camera. The third electric cylinder can drive the camera to realize up and down adjustment activities, so that the acquisition end of the camera can use the side data of the display back panel to realize the side two-dimensional size detection of the display back panel.

[0012] In one embodiment of the present invention, the Y-axial displacement module, the X-axial displacement module and the Z-axial displacement module all include a base, on which are mounted a plurality of sets of parallel guide rails, on which are fitted sliders; a lead screw is also mounted on the base via a rotating connector, on which a nut is engaged; the lead screw is located between two parallel guide rails; a drive motor is mounted at one end of the base, and the output end of the drive motor is connected to the lead screw; the nut and the slider are both active ends of the displacement module.

[0013] In one embodiment of the present invention, the movable end of the Y-axis displacement module is a movable gantry mechanism, and a driving plate is provided at the lower end of the gantry mechanism. The gantry mechanism is fixedly installed with the driving plate and can be displaced along the Y-axis.

[0014] In one embodiment of the present invention, a second guide rail is provided on one side of the driving plate close to the detection module, and a second slide block is matched on the second guide rail; a bottom light mounting plate is mounted on the second slide block, and a bottom light is mounted on the bottom light mounting plate, and the bottom light can be adjusted to fit under the workbench.

[0015] As described above, the multi-faceted composite detection device for display backplane of the present invention has the following beneficial effects: The present invention can freely switch different spatial detection postures of the detection module by setting a spatial displacement platform in conjunction with a rotating mechanism, thereby achieving the effect of multi-faceted detection of the display back plate; the detection module is composed of a 2D size detection module, a 3D size detection module, a column verticality detection module, and a side 2D size detection module; the 2D size detection module can detect the front two-dimensional size of the display back plate; the 3D size detection module can detect the height, verticality, and flatness of the display back plate; the column verticality detection module can detect the verticality of the column on the display back plate; the side 2D size detection module can detect the side two-dimensional size of the display back plate; the detection functions are integrated, and the full-size detection of the display back plate can be completed on one device, thereby simplifying the operation process and greatly improving the detection work efficiency; and detection on one device can unify the detection benchmark, reduce errors caused by human operation, and have high detection accuracy and good repeatability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure disclosed in Example 1.

[0017] Figure 2 It is a schematic diagram of the structure of Example 1 without the protective cover and the workbench.

[0018] Figure 3 Display as Figure 2 Schematic diagram of the enlarged structure of the Z-axis displacement module.

[0019] Figure 4Shown is an enlarged structural schematic diagram of the detection module in Example 1.

[0020] Figure 5 It shows an enlarged structural schematic diagram of the detection module in Example 1 without the bracket.

[0021] Figure 6 show Figure 5 Schematic diagram of the enlarged structure of the 2D size detection module.

[0022] Figure 7 show Figure 5 Schematic diagram of the enlarged structure of the 3D size detection module.

[0023] Figure 8 show Figure 5 Schematic diagram of the enlarged structure of the center column verticality detection module.

[0024] Fig. 9 show Figure 5 Schematic diagram of the enlarged structure of the mid-side 2D size detection module.

[0025] Fig.10 Display as Fig. 9 Schematic diagram of the decomposition structure.

[0026] Fig.11 Shown is an enlarged structural schematic diagram of the detection module disclosed in Example 2.

[0027] Fig.12 Shown is an enlarged structural schematic diagram of the side 2D size detection module disclosed in Example 3.

[0028] Component number description Machine 1; workbench 2; Y-axis displacement module 3; X-axis displacement module 4; Z-axis displacement module 5; base 7; guide rail 8; slider 9; lead screw 10; nut 11; drive motor 12; drive plate 13; gantry mechanism 14; second guide rail 15; second slider 16; bottom light mounting plate 17; bottom light 18; side auxiliary guide rail 19; Detection module 6; bracket 61; 2D size detection module 62; industrial camera 621; first mounting frame 622; rotating mechanism 63; assembly plate 64; 3D size detection module 65; line laser 651; second mounting frame 652; first electric cylinder 653; first L-shaped plate 654; first rotating motor 655; column verticality detection module 66; probe 661; third mounting frame 662; second electric cylinder 663; second L-shaped plate 664; probe frame 665; laser displacement sensor 666; side 2D size detection module 67; prism 671; fourth mounting frame 672; third electric cylinder 673; third L-shaped plate 674; second rotating motor 675; prism bracket 676; camera bracket 677; camera 678; slide plate structure 68; slide rail 681; slide seat 682; 3D displacement sensor 69. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figures 1 to 12 . 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.

[0031] Example 1, please refer to Figure 1-3The present embodiment provides a multi-faceted composite detection device for a display back panel, comprising a machine platform 1, wherein a workbench 2 and a spatial displacement platform are disposed at the upper end of the machine platform 1, wherein the spatial displacement platform comprises a Y-axis displacement module 3, an X-axis displacement module 4 mounted on the movable end of the Y-axis displacement module 3, and a Z-axis displacement module 5 mounted on the movable end of the X-axis displacement module 4, wherein a detection module 6 is mounted on the movable end of the Z-axis displacement module 5, and a detection end of the detection module 6 corresponds to the upper part of the workbench 2; specifically, the Y-axis displacement module 3, the X-axis displacement module 4, and the Z-axis displacement module 5 are disposed on the movable end of the Z-axis displacement module 5. The Y-axis displacement module 4 and the Z-axis displacement module 5 both include a base 7, on which are mounted a plurality of groups of parallel guide rails 8, wherein the guide rails 8 of the Y-axis displacement module 3 are provided with two groups of four rails, and are parallel in the same plane; the guide rails 8 of the X-axis displacement module 4 and the Z-axis displacement module 5 are provided with two groups; a side auxiliary guide rail is provided on one side of the guide rail 8 of the Y-axis displacement module 3, which can improve the stability of the displacement; and a group of side auxiliary guide rails 19 are provided on each side of the guide rail 8 of the Z-axis displacement module 5, which can improve the stability of the displacement. The guide rail 8 is equipped with a slider 9; a lead screw 10 is also installed on the base 7 through a rotating connecting piece, and a nut 11 is engaged with the lead screw 10; the lead screw 10 is located between two parallel guide rails 8; a drive motor 12 is installed at one end of the base 7, and the output end of the drive motor 12 is connected to the lead screw 10; the nut 11 and the slider 9 are both active ends of the displacement module; the lead screw 10 is driven to rotate by the drive motor 12, so that the nut 11 engaged with the lead screw 10 moves linearly, and at the same time, the slider 9 cooperates with the corresponding guide rail 8 and moves synchronously with the nut 11 to realize the linear displacement activity of the displacement module; the spatial displacement platform can realize linear displacement in the three axial directions of XYZ, which is beneficial to drive the detection module 6 to move to the area to be detected on the back panel of the display, and is beneficial to improve the accuracy of the detection. The movable end of the Y-axis displacement module 3 is a movable gantry mechanism 14, and a driving plate 13 is provided at the lower end of the gantry mechanism 14. The gantry mechanism 14 is located at the lower end of the X-axis displacement module 4. The gantry mechanism 14 is fixedly installed with the driving plate 13 and displaced along the Y-axis direction; a second guide rail 15 is provided on the side of the driving plate 13 close to the detection module 6, and a second slide block 16 is matched on the second guide rail 15; a bottom light mounting plate 17 is installed on the second slide block 16, and a bottom light 18 is installed on the bottom light mounting plate 17. The bottom light 18 can be adjusted to fit under the workbench 2, which can improve the brightness of the lower end of the workbench 2 and improve the detection effect of the detection module 6.

[0032] See also Figure 4-Figure 5The detection module 6 includes: a bracket 61, on which a 2D size detection module 62 is installed; a rotating mechanism 63 is installed on the bracket 61 through a rotating connecting piece, and a large hollow structure is provided in the central area of ​​the rotating mechanism 63, and the detection end of the 2D size detection module 62 extends directly downward through the central area of ​​the rotating mechanism 63; an assembly plate 64 is provided at the lower end of the rotating mechanism 63, and a 3D size detection module 65, a column verticality detection module 66, and a side 2D size detection module 67 are also installed at the lower end of the assembly plate 64; the rotating mechanism 63 adopts a DD motor, which can realize rotational movement based on the movement of the spatial displacement platform, freely switch different spatial detection postures of the detection module, and realize the effect of multi-faceted detection of the display back panel.

[0033] See also Figure 6 The 2D size detection module 62 adopts an industrial camera 621. Specifically, the 2D size detection module 62 includes a first mounting frame 622. The 2D size detection module 62 is mounted on the bracket 61 through the first mounting frame 622; the industrial camera 621 is mounted on the first mounting frame 622 and is used to detect the front two-dimensional size of the display back panel.

[0034] See also Figure 7 The 3D size detection module 65 adopts a line laser 651. Specifically, the 3D size detection module 65 includes a second mounting frame 652, and the 3D size detection module 65 is mounted on the assembly plate 64 through the second mounting frame 652; the side end of the second mounting frame 652 is equipped with a first electric cylinder 653, and the output end of the first electric cylinder 653 is provided with a first L-shaped plate 654, and the lower end of the first L-shaped plate 654 is equipped with a first rotating motor 655. The line laser 651 is mounted on the output end of the first rotating motor 655. The first electric cylinder 653 can drive the line laser 651 to realize up and down movable adjustment, and the first rotating motor 655 can drive the line laser 651 to realize rotational movable adjustment, which is beneficial for the line laser 651 to emit laser outward to detect the three-dimensional size of the display back panel, and realize the detection of the display back panel including height, verticality, flatness, etc.

[0035] See also Figure 8 The column verticality detection module 66 adopts a probe 661. Specifically, the column verticality detection module 66 includes a third mounting frame 662. The column verticality detection module 66 is mounted on the lower end of the assembly plate 64 through the third mounting frame 662; the side plate of the third mounting frame 662 is equipped with a second electric cylinder 663, and the output end of the second electric cylinder 663 is provided with a second L-shaped plate 664, and the side end of the second L-shaped plate 664 is provided with a probe frame 665. The probe 661 is installed on the probe frame 665, and the second electric cylinder 663 can drive the probe 661 to move up and down to adjust the verticality of the column on the back plate of the detection display.

[0036] See also Fig. 9 The side 2D size detection module 67 adopts a prism 671. Specifically, the side 2D size detection module 67 includes a fourth mounting frame 672, and the side 2D size detection module 67 is mounted on the lower end of the assembly plate 64 through the fourth mounting frame 672; the side plate of the fourth mounting frame 672 is equipped with a third electric cylinder 673, and the output end of the third electric cylinder 673 is provided with a third L-shaped plate 674, and the lower end of the third L-shaped plate 674 is equipped with a second rotating motor 675, and the output end of the second rotating motor 675 is provided with a prism bracket 676, and the prism 671 is mounted on the prism bracket 676. The third electric cylinder 673 can drive the prism 671 to realize up and down adjustment activities, and the second rotating motor 675 can drive the prism 671 to realize rotation adjustment activities, so that the reflection surface of the prism 671 can form a 90° reflection between the display back plate and the detection end of the industrial camera 621, and the side of the display back plate is reflected by the prism 671 and cooperated with the industrial camera to perform side two-dimensional size detection.

[0037] The working process of the present invention is as follows: after the device is started, the display back panel to be tested is placed on the workbench 2, and the size characteristics of the upper surface and four sides of the display back panel are tested according to the testing requirements; the testing module will have multiple working states: 1) When the upper surface dimension inspection is required, the DD motor is in the 0° position; At this time, the 3D size detection module 65, the column verticality detection module 66, and the side 2D size detection module 67 process the upward retracted state, and the 2D size detection module 62 processes the working state to detect the front two-dimensional size of the display back plate; for the uneven area on the upper surface of the display back plate, the column verticality detection module 66 is put down to detect the verticality of the uneven position; 2) When four side inspections are required, the side 2D size inspection module 67 and the 3D size inspection module 65 are both adjusted to rise and fall and rotate according to the requirements; When performing 2D size detection on the left side of the display back panel, the side 2D size detection module 67 is lowered and rotated to achieve the side size detection effect through the reflected light path and the industrial camera 621; when performing 2D size detection on the other three sides, the DD motor is switched to make the side 2D size detection module 67 correspond to the detection side and repeat the above steps; When performing 3D size detection on the right side of the display back panel, the 3D size detection module 65 is lowered and rotated, and the mobile space displacement platform moves in the Y-axis direction to achieve a side scanning effect; when performing 3D size detection on the other three sides, the DD motor is switched so that the 3D size detection module 65 corresponds to the detection side and the above steps are repeated.

[0038] Example 2, please refer to Fig.11 Based on Example 1, the column verticality detection module 66 adopts a laser displacement sensor 666 to replace the probe 661. Specifically, the column verticality detection module 66 includes a third mounting bracket 662, and the laser displacement sensor 666 is installed at the lower end of the third mounting bracket 662; the laser displacement sensor 666 is used to detect the verticality of the column on the back panel of the display.

[0039] Example 3, please refer to Fig.12 Based on Example 1, the side 2D size detection module 67 adopts a horizontally arranged camera 678 to replace the prism 671. Specifically, the side 2D size detection module 67 includes a fourth mounting frame 672, and the side 2D size detection module 67 is mounted on the lower end of the assembly plate 64 through the fourth mounting frame 672; the side plate of the fourth mounting frame 672 is equipped with a third electric cylinder 673, and the output end of the third electric cylinder 673 is provided with a third L-shaped plate 674, and the lower end of the third L-shaped plate 674 is equipped with a camera bracket 677, and the camera 678 is mounted on the camera bracket 677. The third electric cylinder 673 can drive the camera 678 to realize up and down adjustment activities, so that the acquisition end of the camera 678 can use the side data of the display back panel to realize the side two-dimensional size detection of the display back panel.

[0040] Example 4, based on Example 1, please refer to Fig.10 A slide plate structure 68 is provided between the side end of the first L-shaped plate 654 and the side end of the first electric cylinder 653, between the side end of the second L-shaped plate 664 and the side end of the second electric cylinder 663, and between the side end of the third L-shaped plate 674 and the side end of the third electric cylinder 673. The slide plate structure 68 is composed of a sliding rail 681 and a sliding seat 682 that slide together. The setting of the slide plate structure 68 can improve the flexibility and reliability of the lifting and lowering adjustment of the 3D size detection module 65, the probe 661, and the side 2D size detection module 67.

[0041] Example 5, based on Example 1, please refer to Fig.10 , 3D displacement sensors 69 are provided on the rotating shafts of the first rotating motor 655 and the second rotating motor 675; the 3D displacement sensor 69 can accurately measure the spatial position changes of the 3D size detection module 65 and the 2D size detection module 67 and convert the position changes into electrical signal output, and cooperate with the industrial PLC system application to realize accurate detection and control of the display panel.

[0042] In summary, the present invention can freely switch different spatial detection postures of the detection module 6 by setting a spatial displacement platform in conjunction with the DD motor, thereby achieving the effect of multi-faceted detection of the display backplane; the detection module 6 is composed of a 2D size detection module 62, a 3D size detection module 65, a column verticality detection module 66, and a side 2D size detection module 67. The 2D size detection module 62 can detect the front two-dimensional size of the display backplane, the 3D size detection module 65 can detect the height, verticality, and flatness of the display backplane, the column verticality detection module 66 can detect the verticality of the display backplane, and the side 2D size detection module 67 can cooperate with the 2D size detection module 62 to detect the side two-dimensional size of the display backplane. The present invention integrates the detection function, and the full-size detection of the display backplane can be completed on one device, which simplifies the operation process; greatly improves the detection work efficiency; and detection on one device can unify the detection benchmark, reduce the error caused by human operation, and has high detection accuracy and good repeatability. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0043] 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 multi-faceted composite inspection device for a display back panel, characterized in that: The machine comprises a platform (1), wherein a workbench (2) and a spatial displacement platform are provided at the upper end of the platform (1), wherein the spatial displacement platform comprises a Y-axial displacement module (3), an X-axial displacement module (4) mounted on the movable end of the Y-axial displacement module (3), and a Z-axial displacement module (5) mounted on the movable end of the X-axial displacement module (4), wherein a detection module (6) is mounted on the movable end of the Z-axial displacement module (5), and a detection end of the detection module (6) corresponds to the upper side of the workbench (2); The detection module (6) comprises: a bracket (61), on which a 2D size detection module (62) is mounted; a rotating mechanism (63) is mounted on the bracket (61) via a rotating connection piece, a central region of the rotating mechanism (63) is provided with a large hollow structure, and a detection end of the 2D size detection module (62) passes through the central region of the rotating mechanism (63) and extends directly downward; an assembly plate (64) is provided at the lower end of the rotating mechanism (63), and a 3D size detection module (65), a column verticality detection module (66), and a side 2D size detection module (67) are simultaneously mounted at the lower end of the assembly plate (64); The 2D size detection module (62) uses an industrial camera (621) to detect the front two-dimensional size of the display back panel; The 3D size detection module (65) uses a line laser (651) for emitting laser light outward to detect the three-dimensional size of the display back panel; The column verticality detection module (66) is used to detect the verticality of the column on the display back panel; The side 2D size detection module (67) is used to detect the two-dimensional size of the side of the display back panel.

2. The multi-surface composite detection device for display back panel according to claim 1, characterized in that: The 2D size detection module (62) comprises a first mounting frame (622), and the 2D size detection module (62) is mounted on the bracket (61) via the first mounting frame (622); the industrial camera (621) is mounted on the first mounting frame (622).

3. The multi-surface composite detection device for display back panel according to claim 1, characterized in that: The 3D size detection module (65) comprises a second mounting frame (652), and the 3D size detection module (65) is mounted on the assembly plate (64) via the second mounting frame (652); a first electric cylinder (653) is mounted on the side end of the second mounting frame (652), a first rotating motor (655) is provided at the output end of the first electric cylinder (653), and a line laser (651) is mounted on the output end of the first rotating motor (655).

4. The multi-surface composite detection device for display back panel according to claim 1, characterized in that: The column verticality detection module (66) uses a probe (661) to detect the verticality of the column on the display back panel. The column verticality detection module (66) includes a third mounting frame (662). The column verticality detection module (66) is mounted on the lower end of the assembly plate (64) through the third mounting frame (662); the side plate of the third mounting frame (662) is equipped with a second electric cylinder (663), and the output end of the second electric cylinder (663) is provided with a probe frame (665), and the probe (661) is mounted on the probe frame (665).

5. The multi-surface composite detection device for display back panel according to claim 1, characterized in that: The column verticality detection module (66) uses a laser displacement sensor (666) to detect the verticality of the column on the display back plate, and the column verticality detection module (66) comprises a third mounting frame (662), and the laser displacement sensor (666) is mounted on the lower end of the third mounting frame (662).

6. The multi-surface composite detection device for display back panel according to claim 1, characterized in that: The side 2D size detection module (67) reflects the side of the display back plate through a prism (671) and cooperates with an industrial camera (621) to perform side two-dimensional size detection. The side 2D size detection module (67) comprises a fourth mounting frame (672). The side 2D size detection module (67) is mounted on the lower end of the assembly plate (64) through the fourth mounting frame (672); a third electric cylinder (673) is mounted on the side plate of the fourth mounting frame (672); a second rotating motor (675) is provided at the output end of the third electric cylinder (673); a prism bracket (676) is provided at the output end of the second rotating motor (675); and the prism (671) is mounted on the prism bracket (676).

7. The multi-surface composite detection device for display back panel according to claim 1, characterized in that: The side 2D size detection module (67) performs side two-dimensional size detection through a transversely arranged camera (678), and the side 2D size detection module (67) comprises a fourth mounting frame (672), a side plate of the fourth mounting frame (672) is equipped with a third electric cylinder (673), and an output end of the third electric cylinder (673) is provided with a transversely arranged camera (678), and the third electric cylinder (673) can drive the camera (678) to achieve up and down adjustment activities, so that the acquisition end of the camera (678) can use the side data of the display back plate to achieve the side two-dimensional size detection of the display back plate.

8. The multi-surface composite detection device for display back panel according to claim 1, characterized in that: The Y-axis displacement module (3), the X-axis displacement module (4) and the Z-axis displacement module (5) all comprise a base (7), the base (7) being provided with a plurality of sets of parallel guide rails (8), the guide rails (8) being provided with sliders (9); the base (7) being provided with a lead screw (10) via a rotating connecting member, the lead screw (10) being provided with a nut (11) being engaged and sleeved; the lead screw (10) being located between two parallel guide rails (8); a drive motor (12) being provided at one end of the base (7), the output end of the drive motor (12) being connected to the lead screw (10); the nut (11) and the slider (9) being both movable ends of the displacement module.

9. The multi-surface composite detection device for display back panel according to any one of claims 1 to 8, characterized in that: The movable end of the Y-axis displacement module (3) is a movable gantry mechanism (14), a driving plate (13) is provided at the lower end of the gantry mechanism (14), and the gantry mechanism (14) and the driving plate (13) are fixedly mounted and can be displaced along the Y-axis.

10. The multi-surface composite detection device for display back panel according to claim 9, characterized in that: A second guide rail (15) is provided on one side of the driving plate (13) close to the detection module (6), and a second slide block (16) is fitted on the second guide rail (15); a bottom light mounting plate (17) is mounted on the second slide block (16), and a bottom light (18) is mounted on the bottom light mounting plate (17), and the bottom light (18) is adjustably fitted under the workbench (2).

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