CN221007290U - Multi-angle screen display detection device - Google Patents

Abstract

The utility model discloses a multi-angle screen display detection device, which comprises: positioning jig; the bearing seat is arranged opposite to the positioning jig; the main detection mechanism is arranged on the bearing seat, and the detection end of the main detection mechanism is opposite to the positioning jig; the auxiliary detection mechanisms are arranged on the bearing seat and are respectively positioned at the periphery of the main detection mechanism; the auxiliary detection mechanism comprises a sliding frame, a first driving assembly, a second driving assembly and an auxiliary detection camera, wherein the first driving assembly is arranged on the sliding frame, the second driving assembly is connected with the first driving assembly, the first driving assembly drives the second driving assembly to reciprocate linearly relative to the sliding frame, the auxiliary detection camera is connected with the second driving assembly, the second driving assembly drives the auxiliary detection camera to reciprocate in a curve, and the auxiliary detection camera obliquely faces the positioning jig. The utility model realizes the omnibearing shooting detection of the screen, effectively reduces the workload required by the screen detection and does not need to re-judge again.

Description

Multi-angle screen display detection device

Technical Field

The utility model relates to the technical field of automatic detection and the technical field of optics, in particular to a multi-angle screen display detection device.

Background

In recent years, the consumption demands of automobiles are steadily increased, and the diversified demands of people are hardly met by automobiles with basic driving functions, so that the automobiles gradually evolve towards four trends of 'electric, intelligent, networking, sharing', and the like, and meanwhile, the automobiles have higher demands on the capabilities of vehicle-mounted display of high definition, large screen, multi-screen, individuation, interactive upgrading, integrated integration, and the like. Along with the endless demands of users and terminal manufacturers on the vehicle-mounted display capability of automobiles, the traditional instrument panels, central control screens, vehicle-mounted entertainment system terminals and the like face the continuous and abundant, continuous upgrading and strengthening integrated tests, and the full liquid crystal instruments, central control, HUDs, transparent A columns, skylights, windows and the like bring more interactive experiences to users.

It is predicted by the analysis mechanism that a future car may be equipped with more than 10 display screens as the on-board screen of the car. In the related art, before the screen is assembled in an automobile, the screen is required to be detected firstly, and when the screen is detected, the screen is required to be manually switched to each screen and each angle is required to be placed for detection, so that the production quality of the automobile screen is ensured. However, as the time for manually visually inspecting the screen is longer and longer, the screen is limited by the state of staff, and the phenomena of missed inspection and over inspection are easy to occur, so that the screen is mostly inspected by detecting equipment instead of manual work nowadays.

However, most of the existing detection devices can only detect the screen at a fixed angle, and are difficult to cover each view angle to detect the screen, so that the screen is required to be re-judged, workload is increased, a large amount of manpower and material resources are consumed, and production quality and production efficiency of the vehicle-mounted screen are affected.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a multi-angle screen display detection device.

The utility model discloses a multi-angle screen display detection device, which comprises:

Positioning jig;

The bearing seat is arranged opposite to the positioning jig;

The main detection mechanism is arranged on the bearing seat, and the detection end of the main detection mechanism is opposite to the positioning jig; and

The auxiliary detection mechanisms are arranged on the bearing seat and are respectively positioned at the periphery of the main detection mechanism; the auxiliary detection mechanism comprises a sliding frame, a first driving assembly, a second driving assembly and an auxiliary detection camera, wherein the first driving assembly is arranged on the sliding frame, the second driving assembly is connected with the first driving assembly, the first driving assembly drives the second driving assembly to reciprocate linearly relative to the sliding frame, the auxiliary detection camera is connected with the second driving assembly, the second driving assembly drives the auxiliary detection camera to reciprocate in a curve, and the auxiliary detection camera obliquely faces the positioning jig.

Preferably, the first driving assembly comprises a first driving piece, a screw rod, a connecting portion and a first rack, one end of the screw rod is connected to the driving end of the first driving piece, one end of the connecting portion is sleeved outside the screw rod, the connecting portion is in threaded connection with the screw rod, the first rack is arranged on one side, deviating from the screw rod, of the connecting portion, and the first rack is in an arc-shaped arrangement.

Preferably, the second driving assembly comprises a connecting plate, a second driving piece, a first driving gear and a driven gear, wherein the connecting plate is movably arranged on one side of the first rack, which is away from the connecting part, the second driving piece is arranged on the connecting plate, the first driving gear is connected with the driving end of the second driving piece, the driven gear is meshed with the first driving gear, and the driven gear is meshed with the first rack.

Preferably, the auxiliary detection mechanism further comprises a third driving assembly, the third driving assembly is respectively connected with the auxiliary detection camera and the connecting plate, and the third driving assembly drives the auxiliary detection camera to do reciprocating linear movement relative to the connecting plate.

Preferably, the third driving assembly comprises a movable block, a third driving part, a second driving gear and a second rack, the movable block is movably arranged on one side, away from the first rack, of the connecting plate, the third driving part is arranged on the movable block, the second driving gear is connected to the driving end of the third driving part, the second rack is arranged on the connecting plate, and the second rack is meshed with the second driving gear.

Preferably, the main detection mechanism comprises a lifting seat, a main driving assembly, a lifting plate and a main detection camera, wherein the main driving assembly is arranged on the lifting seat, the lifting plate is connected to the driving end of the main driving assembly, the main driving assembly drives the lifting plate to reciprocate linearly relative to the lifting seat, the main detection camera is arranged on the lifting plate, and the main detection camera is opposite to the positioning jig.

Preferably, the main driving assembly comprises a main driving piece and a screw rod, wherein the screw rod is arranged in the lifting seat, and one end of the screw rod is connected to the driving end of the main driving piece.

Preferably, the main detection mechanism further comprises an auxiliary camera, the auxiliary camera is arranged on the lifting plate, and the auxiliary camera is opposite to the positioning jig.

Preferably, the positioning jig comprises a bearing part, a placing part and a pressing assembly, wherein the placing part is arranged on the bearing part, and the pressing assembly is arranged on the bearing part and one end of the pressing assembly is abutted against the placing part.

Preferably, the positioning fixture further comprises a light source, wherein the light source is arranged on one side of the bearing seat facing the positioning fixture.

The application has the beneficial effects that: when the screen is detected, the screen is firstly loaded on the placement part, and the screen is controlled to switch each picture. When the screen switches one screen, the main detection mechanism detects the defect of the screen in a front view with high precision. Meanwhile, the secondary detection camera is driven to do reciprocating curve movement through the second driving component, and the secondary detection camera rapidly flies the screen so as to achieve multi-angle shooting of the screen. Therefore, the omnibearing shooting detection of the screen is realized, the workload and manpower and material resources required by the screen detection are effectively reduced, the repeated judgment is not needed, and the production quality and the production efficiency of the screen are ensured while the labor cost is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

fig. 1 is a perspective view of a multi-angle screen display detection apparatus in an embodiment;

FIG. 2 is a perspective view showing a positioning jig according to an embodiment;

FIG. 3 is a cross-sectional view showing a positioning jig according to an embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a perspective view showing a main detection mechanism in an embodiment;

FIG. 6 is a perspective view showing a secondary detection mechanism in an embodiment;

fig. 7 is a perspective view showing another view of the secondary detection mechanism in the embodiment.

In the attached drawings, 1, positioning jig; 11. a carrying part; 12. a placement unit; 13. a compression assembly; 131. a compacting cylinder; 132. a pressing rod; 2. a bearing seat; 3. a main detection mechanism; 31. a lifting seat; 32. a main drive assembly; 321. a main driving member; 33. a lifting plate; 34. a main detection camera; 35. an auxiliary camera; 4. an auxiliary detection mechanism; 41. a sliding frame; 42. a first drive assembly; 421. a first driving member; 422. a screw rod; 423. a connection part; 424. a first rack; 43. a second drive assembly; 431. a connecting plate; 432. a second driving member; 433. a first drive gear; 434. a driven gear; 44. a third drive assembly; 441. a movable block; 442. a third driving member; 443. a second drive gear; 444. a second rack; 45. a sub-detection camera; 5. and (5) lighting a light source.

Detailed Description

Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the sake of simplicity of the drawing, some well-known and conventional structures and elements are shown in the drawings in a simplified schematic manner.

It should be noted that all directional indicators such as up, down, left, right, front, and rear … … in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture such as that shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions of the "first", "second", etc. in this application are for descriptive purposes only and are not intended to specifically indicate a sequential or a cis-position, nor are they intended to limit the utility model, but are merely intended to distinguish between components or operations described in the same technical term, and are not to be construed as indicating or implying a relative importance or implying that the number of technical features indicated is not necessarily limited. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:

Referring to fig. 1 and 2, fig. 1 is a perspective view of a multi-angle screen display detection device in an embodiment, and fig. 2 is a perspective view for showing a positioning jig 1 in an embodiment. The multi-angle screen display detection device in the embodiment is used for realizing the omnibearing shooting detection of a screen. The multi-angle screen display detection device comprises a positioning jig 1, a bearing seat 2, a main detection mechanism 3, a plurality of auxiliary detection mechanisms 4 and a plurality of light sources 5, wherein the bearing seat 2 and the positioning jig 1 are oppositely arranged, the main detection mechanism 3 is arranged on the bearing seat 2, and the detection end of the main detection mechanism 3 is opposite to the positioning jig 1. The auxiliary detection mechanisms 4 are arranged on the bearing seat 2, the auxiliary detection mechanisms 4 are respectively positioned at the periphery of the main detection mechanism 3, and the detection ends of the auxiliary detection mechanisms 4 are inclined towards the positioning jig 1. The light source 5 is installed on one side of the bearing seat 2 facing the positioning jig 1, and the light source 5 is located below the main detection mechanism 3 and the auxiliary detection mechanism 4. In practical application, when detecting the screen, the material loading screen is to positioning fixture 1, control the screen and carry out the switching of each dust screen, when the screen switches every dust screen, shoot the screen through main detection mechanism 3, realize detecting the defect of looking visible, and carry out the multi-angle through vice detection mechanism 4 to the screen, realize detecting the defect of each oblique side angle, thereby carry out the omnidirectional shooting to the screen and detect, when switching last dust screen, shine through beating light source 5, beat the light source parallel irradiation of light source 5 emission and at the screen surface, distinguish screen surface dust and inside laminating foreign matter, shoot specific dust screen through main detection mechanism 3 and vice detection mechanism 4, confirm the dust position, and realize the dust filtering effect through image processing.

Referring to fig. 3 and 4 together, fig. 3 is a cross-sectional view for showing the positioning jig 1 according to the embodiment, and fig. 4 is an enlarged view of a portion a in fig. 3. The positioning jig 1 comprises a bearing part 11, a placing part 12 and a pressing assembly 13, wherein the placing part 12 is installed on the bearing part 11, and the placing part 12 is used for placing a screen. In this embodiment, the placement portion 12 and the carrying portion 11 are relatively fixed by a detachable connection, and the detachable connection is not limited herein. The pressing component 13 is disposed on the carrying portion 11, and one end of the pressing component 13 abuts against the placing portion 12, so as to reduce the loosening of the connection between the placing portion 12 and the carrying portion 11. Specifically, the pressing assembly 13 includes a pressing cylinder 131 and a pressing rod 132, the pressing cylinder 131 is installed in the bearing portion 11, a piston rod of the pressing cylinder 131 is vertically upward, one end of the pressing rod 132 is connected to the piston rod of the pressing cylinder 131, and one end of the pressing rod 132, which is far away from the pressing cylinder 131, is abutted against the upper surface of the placement portion 12. When the pressing cylinder 131 works, the piston rod of the pressing cylinder 131 drives the pressing rod 132 to move downwards, so that one end of the pressing rod 132 abuts against the upper surface of the placing portion 12, and the placing portion 12 abuts against the placing portion 12 to enable the placing portion 12 to be relatively fixed with the bearing portion 11, so that the situation that the connection between the placing portion 12 and the bearing portion 11 is loose is reduced. It should be noted that, the positioning jig 1 is provided with a controller, and the screen placed on the positioning jig 1 is switched between dust filtering pictures by communication between software control and a PC, so as to facilitate subsequent shooting detection.

Referring again to fig. 5, fig. 5 is a perspective view showing the main detection mechanism 3 in the embodiment. Further, the main detecting mechanism 3 includes a lifting base 31, a main driving assembly 32, a lifting plate 33, a main detecting camera 34, and an auxiliary camera 35, and the lifting base 31 is vertically installed in the carrying base 2. The main driving assembly 32 is disposed on the lifting seat 31, the lifting plate 33 is connected to the driving end of the main driving assembly 32, and the main driving assembly 32 drives the lifting plate 33 to reciprocate linearly relative to the lifting seat 31, i.e. when the main driving assembly 32 works, the lifting plate 33 can reciprocate linearly in a direction approaching or separating from the placement portion 12. The main detecting camera 34 and the auxiliary camera 35 are both installed on the lifting plate 33, and the main detecting camera 34 and the auxiliary camera 35 are both opposite to the placing part 12, in this embodiment, the main detecting camera 34 is a high resolution camera, and the detecting precision can reach 10um, so as to meet the high precision detection of the 4K screen, thereby realizing the defect detection of visible points, lines and the like; the auxiliary camera 35 is a color camera for recovering true colors, thereby realizing defect detection of different colors, color spots, and the like.

Specifically, the main driving assembly 32 includes a main driving member 321 and a screw (not shown in the drawings), the main driving member 321 is mounted on the top end of the lifting seat 31, the screw is mounted in the lifting seat 31, and one end of the screw is connected to the driving end of the main driving member 321. In this embodiment, the main driving member 321 is connected to the screw via a gear assembly, and the driving wheel, the driven wheel and the driving belt in the gear assembly are in the prior art, so that no redundant description is given. The main driving piece 321 is a servo motor, and an output shaft of the servo motor is connected to one end of the screw rod through a gear transmission assembly to drive the screw rod to rotate relative to the lifting seat 31, and one end of the lifting plate 33 is in threaded connection with the screw rod, so that when the screw rod rotates relative to the lifting seat 31, the lifting plate 33 linearly moves along the length direction of the lifting seat 31. When the working distance between the main detecting camera 34 and the auxiliary camera 35 relative to the placement portion 12 needs to be adjusted, the screw is driven to rotate by the main driving piece 321, so that the lifting plate 33 linearly moves along the length direction of the lifting seat 31, and the working distance between the main detecting camera 34 and the auxiliary camera 35 relative to the placement portion 12 is adjusted, so that the screen is photographed.

Referring again to fig. 6 and 7, fig. 6 is a perspective view showing the sub-detecting mechanism 4 in the embodiment, and fig. 7 is a perspective view showing another view angle of the sub-detecting mechanism 4 in the embodiment. Further, the sub-detecting mechanism 4 includes a slide frame 41, a first driving assembly 42, a second driving assembly 43, a third driving assembly 44, and a sub-detecting camera 45, and the slide frame 41 is vertically mounted on a side of the carrying seat 2 facing the placement portion 12. The first driving component 42 is disposed on the sliding frame 41, the second driving component 43 is connected with the first driving component 42, and the first driving component 42 drives the second driving component 43 to perform reciprocating linear movement relative to the sliding frame 41, that is, when the first driving component 42 works, the second driving component 43 can perform linear movement in a direction approaching or separating from the placement portion 12. The third driving component 44 is connected with the second driving component 43, and the second driving component 43 drives the third driving component 44 to do reciprocating curve movement. The sub-detection camera 45 is connected to the third driving unit 44, and the sub-detection camera 45 is inclined toward the placement unit 12. The third driving assembly 44 drives the secondary detecting camera 45 to reciprocate linearly relative to the connection plate 431, that is, when the third driving assembly 44 works, the secondary detecting camera 45 can linearly move toward or away from the placement portion 12. In this embodiment, the first driving assembly 42 and the third driving assembly 44 are used for adjusting the working distance of the auxiliary detecting camera 45 relative to the placement portion 12 so as to adjust screens with different sizes and heights during the mold changing, and the second driving assembly 43 is used for adjusting the inclination angle of the auxiliary detecting camera 45 relative to the placement portion 12 so as to realize the defect detection of each inclination angle of the screen. It should be noted that, the main detecting camera 34, the auxiliary camera 35 and the auxiliary detecting camera 45 are all electrically connected to the external control device, and when the main detecting camera 34, the auxiliary camera 35 and the auxiliary detecting camera 45 shoot and detect the screen, the shot picture is transmitted to the external control device to output the screen detection report.

Specifically, the first driving assembly 42 includes a first driving member 421, a screw rod 422, a connecting portion 423 and a first rack 424, the first driving member 421 is mounted at the bottom end of the sliding frame 41, one end of the screw rod 422 is connected to the driving end of the first driving member 421, in this embodiment, the first driving member 421 is a servo motor, an output shaft of the servo motor is connected to the screw rod 422, and when the first driving member 421 works, the screw rod 422 rotates relative to the sliding frame 41. One end of the connecting portion 423 is sleeved outside the screw 422, the connecting portion 423 is in threaded connection with the screw 422, when the screw 422 rotates, the connecting portion 423 linearly moves along the length direction of the screw 422, and a guide rail and a sliding block are arranged between the connecting portion 423 and the sliding frame 41 to guide the moving direction of the connecting portion 423. The first rack 424 is installed at one side of the connection portion 423 facing away from the screw 422, and the first rack 424 is disposed in an arc shape.

Further, the second driving assembly 43 includes a connection plate 431, a second driving member 432, a first driving gear 433 and a driven gear 434, and the connection plate 431 is movably mounted on a side of the first rack 424 facing away from the connection portion 423. The second driving member 432 is mounted on the connection plate 431, the first driving gear 433 is connected to the driving end of the second driving member 432, in this embodiment, the second driving member 432 is a servo motor, an output shaft of the servo motor is connected to a center point of the first driving gear 433, and when the second driving member 432 works, the first driving gear 433 rotates clockwise or counterclockwise relative to the connection plate 431. The driven gear 434 is rotatably connected to the connection plate 431, and the driven gear 434 is engaged with the first driving gear 433, and the direction of rotation of the driven gear 434 is opposite to the direction of the first driving gear 433. The driven gear 434 is further engaged with the first rack 424, when the second driving member 432 works, the first driving gear 433 rotates relative to the connection plate 431, so that the driven gear 434 rotates synchronously, and the driven gear 434 moves along the length direction of the first rack 424 in a curved manner due to the engaged connection of the driven gear 434 with the first rack 424, so that the connection plate 431 moves along the length direction of the first rack 424 in a curved manner synchronously. A guide rail and a slider are also provided between the connection plate 431 and the first rack 424 to guide the movement direction of the connection plate 431.

Further, the third driving assembly 44 includes a movable block 441, a third driving member 442, a second driving gear 443, and a second rack 444, wherein the movable block 441 is movably mounted on a side of the connecting plate 431 facing away from the first rack 424, and the secondary detecting camera 45 is mounted on a side of the movable block 441 facing away from the connecting plate 431. The third driving member 442 is disposed at a side of the movable block 441 away from the connecting plate 431, the second driving gear 443 is connected to a driving end of the third driving member 442, in this embodiment, the third driving member 442 is a servo motor, an output shaft of the servo motor is connected to a center point of the second driving gear 443, and when the third driving member 442 works, the second driving gear 443 rotates relative to the movable plate. The second rack 444 is mounted on a side of the connection plate 431 facing away from the driven gear 434, and the second rack 444 is in meshed connection with the second driving gear 443. When the third driving member 442 works, the second driving gear 443 rotates relative to the movable plate, and the second driving gear 443 is engaged with and connected to the second rack 444, so that the second driving gear 443 linearly moves along the length direction of the second rack 444, and the movable block 441 synchronously moves linearly along the length direction of the second rack 444. A guide rail and a slider are also provided between the movable block 441 and the connection plate 431 to guide the moving direction of the movable block 441. In practical application, before the detection, the first driving member 421 drives the screw rod 422 to rotate, so that the connecting portion 423 linearly moves along the length direction of the screw rod 422, or, the third driving member 442 drives the second driving gear 443 to rotate relative to the movable plate, so that the second driving gear 443 linearly moves along the length direction of the second rack 444, and the movable block 441 synchronously moves linearly along the length direction of the second rack 444, and of course, the first driving member 421 and the third driving member 442 can work at the same time, so that the working distance of the auxiliary detection camera 45 relative to the placement portion 12 can be adjusted to adapt to the adjustment of screens with different sizes and heights during the type changing. During detection, the second driving piece 432 drives the first driving gear 433 to rotate relative to the connecting plate 431, so that the driven gear 434 synchronously rotates, at this time, the driven gear 434 makes a curve movement along the length direction of the first rack 424, so that the connecting plate 431 synchronously makes a curve movement along the length direction of the first rack 424, and the auxiliary detection camera 45 synchronously moves and rapidly flies the screen on the placement part 12, so that multi-angle shooting of the screen is realized.

In summary, in the multi-angle screen display detection device of the present utility model, when detecting a screen, the screen is first loaded into the placement unit 12, and the screen is controlled to switch each screen. The main detection camera 34 and the auxiliary camera 35 perform high-precision detection of defects visible from the front of the screen every time the screen switches one screen. Meanwhile, the second driving piece 432 drives the first driving gear 433 to rotate relative to the connecting plate 431, so that the driven gear 434 synchronously rotates, at this time, the driven gear 434 makes a curve movement along the length direction of the first rack 424, so that the connecting plate 431 synchronously makes a curve movement along the length direction of the first rack 424, and the auxiliary detection camera 45 synchronously moves and rapidly flies the screen on the placement part 12, so that multi-angle shooting of the screen is realized. Therefore, the screen is subjected to omnibearing shooting detection through the main detection camera 34 and the auxiliary detection camera 45, so that the workload and manpower and material resources required for screen detection are effectively reduced, repeated judgment is not needed, and the production quality and the production efficiency of the screen are ensured while the labor cost is reduced.

The foregoing description is only illustrative of the utility model and is not to be construed as limiting the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present utility model, should be included in the scope of the claims of the present utility model.

Claims (10)

1. A multi-angle screen display detection apparatus, comprising:

a positioning jig (1);

the bearing seat (2) is arranged opposite to the positioning jig (1);

The main detection mechanism (3) is arranged on the bearing seat (2), and the detection end of the main detection mechanism (3) is opposite to the positioning jig (1); and

The auxiliary detection mechanisms (4) are arranged on the bearing seat (2), and the auxiliary detection mechanisms (4) are respectively positioned at the periphery of the main detection mechanism (3); the auxiliary detection mechanism (4) comprises a sliding frame (41), a first driving assembly (42), a second driving assembly (43) and an auxiliary detection camera (45), wherein the first driving assembly (42) is arranged on the sliding frame (41), the second driving assembly (43) is connected with the first driving assembly (42), the first driving assembly (42) drives the second driving assembly (43) to reciprocate linearly relative to the sliding frame (41), the auxiliary detection camera (45) is connected with the second driving assembly (43), the second driving assembly (43) drives the auxiliary detection camera (45) to reciprocate in a curve, and the auxiliary detection camera (45) obliquely faces the positioning jig (1).

2. The multi-angle screen display detection device according to claim 1, wherein the first driving assembly (42) comprises a first driving member (421), a screw rod (422), a connecting portion (423) and a first rack (424), one end of the screw rod (422) is connected to the driving end of the first driving member (421), one end of the connecting portion (423) is sleeved outside the screw rod (422), the connecting portion (423) is in threaded connection with the screw rod (422), the first rack (424) is arranged on one side, deviating from the screw rod (422), of the connecting portion (423), and the first rack (424) is in an arc shape.

3. The multi-angle screen display detection device according to claim 2, wherein the second driving assembly (43) comprises a connecting plate (431), a second driving member (432), a first driving gear (433) and a driven gear (434), the connecting plate (431) is movably arranged at one side of the first rack (424) away from the connecting portion (423), the second driving member (432) is arranged at the connecting plate (431), the first driving gear (433) is connected to the driving end of the second driving member (432), the driven gear (434) is in meshed connection with the first driving gear (433), and the driven gear (434) is also in meshed connection with the first rack (424).

4. A multi-angle screen display detection apparatus according to claim 3, wherein the secondary detection mechanism (4) further comprises a third driving assembly (44), the third driving assembly (44) is respectively connected to the secondary detection camera (45) and the connection board (431), and the third driving assembly (44) drives the secondary detection camera (45) to reciprocate linearly relative to the connection board (431).

5. The multi-angle screen display detection device according to claim 4, wherein the third driving assembly (44) comprises a movable block (441), a third driving member (442), a second driving gear (443) and a second rack (444), the movable block (441) is movably arranged at one side of the connecting plate (431) away from the first rack (424), the third driving member (442) is arranged at the movable block (441), the second driving gear (443) is connected to the driving end of the third driving member (442), the second rack (444) is arranged at the connecting plate (431), and the second rack (444) is meshed with the second driving gear (443).

6. The multi-angle screen display detection device according to claim 1, wherein the main detection mechanism (3) comprises a lifting seat (31), a main driving component (32), a lifting plate (33) and a main detection camera (34), the main driving component (32) is arranged on the lifting seat (31), the lifting plate (33) is connected to the driving end of the main driving component (32), the main driving component (32) drives the lifting plate (33) to reciprocate linearly relative to the lifting seat (31), the main detection camera (34) is arranged on the lifting plate (33), and the main detection camera (34) is opposite to the positioning jig (1).

7. The multi-angle screen display detection device according to claim 6, wherein the main driving assembly (32) comprises a main driving member (321) and a screw rod, the screw rod is arranged in the lifting seat (31), and one end of the screw rod is connected to the driving end of the main driving member (321).

8. The multi-angle screen display detection device according to claim 6, wherein the main detection mechanism (3) further comprises an auxiliary camera (35), the auxiliary camera (35) is arranged on the lifting plate (33), and the auxiliary camera (35) is opposite to the positioning jig (1).

9. The multi-angle screen display detection device according to claim 1, wherein the positioning jig (1) comprises a bearing part (11), a placement part (12) and a pressing assembly (13), the placement part (12) is arranged on the bearing part (11), the pressing assembly (13) is arranged on the bearing part (11), and one end of the pressing assembly (13) is abutted to the placement part (12).

10. The multi-angle screen display detection device according to any one of claims 1-9, further comprising a light source (5), wherein the light source (5) is disposed on a side of the carrier (2) facing the positioning jig (1).