Positioning mechanism and AOI (automatic optical inspection) machine

Abstract

The utility model relates to the technical field of detection devices, in particular to a positioning mechanism and an AOI (automatic optical inspection) detector, which mainly comprises a transverse plate, a carrier and a positioning component are arranged on the transverse plate, the positioning component is arranged on the transverse plate and comprises a two-way screw rod arranged on the transverse plate, a fixing plate is rotatably arranged on the two-way screw rod, a mounting plate is arranged on the fixing plate, and the mounting plate is fixedly connected with the carrier. A silica gel plate is arranged on the mounting plate, and the positioning assembly is used for positioning the carrier. According to the positioning mechanism and the AOI detection machine, through rotation of the two-way lead screw, the distance between the two sets of fixing plates can be adjusted, a silica gel plate can clamp and position a carrier, meanwhile, the silica gel plate can protect the carrier, the carriers of different specifications can be positioned to the fixed positions, and the positioning efficiency is improved. The situation that the carrier does not arrive at a designated position, and a worker needs to debug for many times can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field, concretely is a positioning mechanism and AOI detection machine. BACKGROUND

[0002] In the current situation of the increasing popularity of automatic optical inspection, the AOI detection machine, as an indispensable device in the electronic manufacturing industry, is of great importance to ensure product quality due to its efficient and accurate detection capability. Through high-precision cameras and image processing algorithms, the AOI detection machine can automatically scan and identify defects on circuit boards, semiconductor components, and other board components. In actual operation, the board to be tested is usually carefully placed in a specially designed carrier. These carriers are designed to protect the board from physical damage and facilitate its flow and positioning on the production line. By accurately placing the carrier at the designated position of the AOI detection machine, the camera can capture complete and unobstructed images of the board, allowing for detailed detection and analysis.

[0003] However, if the carrier is not accurately aligned to the predetermined position during placement, even a slight deviation can result in the camera failing to capture complete information or unnecessary shadows and reflections appearing in the image, leading to false positives or false negatives and ultimately causing detection failure. In such cases, the staff must interrupt the detection process, manually adjust the position of the carrier until it meets the detection requirements. This process not only consumes time and effort but also significantly reduces the overall detection efficiency of the AOI detection machine, increases production costs, and may delay production progress. SUMMARY

[0004] The utility model aims at providing a positioning mechanism and AOI detection machine to solve the problem of the carrier not being accurately placed at the designated position, which requires the staff to adjust multiple times, consuming time and effort.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0006] A positioning mechanism and AOI detection machine, comprising: a horizontal plate, a carrier is provided on the horizontal plate, a positioning assembly, the positioning assembly is provided on the horizontal plate, the positioning assembly comprises a double-way screw rod provided on the horizontal plate, a fixed plate is rotatably provided on the double-way screw rod, an installation plate is provided on the fixed plate, a silica gel plate is provided on the installation plate, and the positioning assembly is used for positioning the carrier; a replacement assembly, the replacement assembly is provided on the installation plate, the replacement assembly comprises a limiting plate provided on the installation plate, a connecting groove is provided on the installation plate, a sliding plate is provided on the silica gel plate, and the replacement assembly is used for replacing the silica gel plate.

[0007] Preferably, the positioning assembly further comprises a threaded block provided at the lower end of the fixed plate, a sliding groove is provided on the horizontal plate corresponding to the threaded block, and the threaded block is movably arranged in the sliding groove.

[0008] Preferably, one side of the horizontal plate is provided with a motor, a bidirectional screw rod is arranged at the output end of the motor, the bidirectional screw rod is threaded on the threaded block, and the bidirectional screw rod penetrates through the sliding groove.

[0009] Preferably, the inside of the fixed plate is provided with a placing groove, the inside of the placing groove is provided with an expansion rod, a mounting plate is arranged at one end of the expansion rod, an elastic piece is arranged between the mounting plate and the placing groove, and the elastic piece is arranged outside the expansion rod.

[0010] Preferably, the replacement assembly further comprises a threaded rod arranged at one end of the limiting plate, a rotating piece is arranged at one end of the threaded rod, and the threaded rod penetrates through the mounting plate.

[0011] Preferably, a fixed groove is arranged on the mounting plate corresponding to the limiting plate, and the limiting plate is movably arranged in the fixed groove.

[0012] Preferably, the sliding plate is movably arranged in the connecting groove.

[0013] An AOI detection machine comprises a detection machine body, and the detection machine body comprises a positioning mechanism of any one of the above.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] Through rotation of the bidirectional screw rod, the distance between the two fixed plates can be adjusted, so that the silica gel plate can clamp and position the carrier, meanwhile, the silica gel plate can protect the carrier, can position the carriers of different specifications to the fixed position, can effectively avoid the situation that the carrier does not reach the specified position and the staff needs to debug multiple times;

[0016] Through the sliding plate being clamped into or separated from the connecting groove, the silica gel plate can be quickly replaced, the situation that the carrier is not accurately positioned due to damage of the silica gel plate can be avoided, and meanwhile, the situation that the carrier is damaged due to excessive clamping force during positioning of the carrier can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the utility model;

[0018] Figure 2 It is a partial three-dimensional structure schematic view of the utility model;

[0019] Figure 3 It is a positioning assembly three-dimensional structure schematic view of the utility model;

[0020] Figure 4 It is a replacement assembly three-dimensional structure schematic view of the utility model.

[0021] In the diagram: 1. Main body of the testing machine; 2. Horizontal plate; 3. Carrier; 4. Motor; 5. Two-way lead screw; 6. Slide groove; 7. Threaded block; 8. Fixing plate; 9. Silicone plate; 10. Placement groove; 11. Elastic element; 12. Telescopic rod; 13. Mounting plate; 14. Connecting groove; 15. Limiting plate; 16. Fixing groove; 17. Threaded rod; 18. Rotating element; 19. Sliding plate. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0024] like Figures 1-4 As shown, this application provides a positioning mechanism, including: a horizontal plate 2, a carrier 3 disposed on the horizontal plate 2, a positioning component disposed on the horizontal plate 2, the positioning component including a bidirectional lead screw 5 disposed on the horizontal plate 2, a fixed plate 8 rotatably disposed on the bidirectional lead screw 5, an mounting plate 13 disposed on the fixed plate 8, and a silicone plate 9 disposed on the mounting plate 13, the positioning component being used for positioning the carrier 3.

[0025] Specifically, such as Figure 2 As shown, the positioning component also includes a threaded block 7 at the lower end of the fixing plate 8, and a groove 6 on the horizontal plate 2 corresponding to the threaded block 7. The threaded block 7 is movably disposed in the groove 6. Since the groove 6 can limit the movement direction of the threaded block 7, the movement direction of the threaded block 7 remains stable.

[0026] Specifically, such as Figure 2 As shown, a motor 4 is provided on one side of the horizontal plate 2, and a bidirectional lead screw 5 is provided at the output end of the motor 4. The bidirectional lead screw 5 is threaded on the threaded block 7 and passes through the slide groove 6. The rotation of the bidirectional lead screw 5 can adjust the distance between the two sets of threaded blocks 7, and can achieve positioning and clamping of carriers 3 of different specifications.

[0027] Specifically, such as Figure 2As shown, the inside of the fixed plate 8 is provided with a placing groove 10, the inside of the placing groove 10 is provided with a telescopic rod 12, an installation plate 13 is arranged at one end of the telescopic rod 12, an elastic element 11 is arranged between the installation plate 13 and the placing groove 10, the elastic element 11 is arranged outside the telescopic rod 12, and the elastic force of the elastic element 11 can dampen when the installation plate 13 positions the carrier 3, so as to achieve the purpose of protecting the carrier 3, and can cooperate with the silica gel plate 9 to achieve double protection of the carrier 3.

[0028] The installation plate 13 is provided with a replacement assembly, the replacement assembly comprises a limiting plate 15 arranged on the installation plate 13, the installation plate 13 is provided with a connecting groove 14, and the silica gel plate 9 is provided with a sliding plate 19. The replacement assembly is used for replacing the silica gel plate 9.

[0029] Specifically, as shown in the figure, Figure 4 The replacement assembly further comprises a threaded rod 17 arranged at one end of the limiting plate 15, one end of the threaded rod 17 is provided with a rotating element 18, and the threaded rod 17 penetrates through the installation plate 13. By rotating the threaded rod 17, the limiting plate 15 can be moved forward and backward, and the sliding plate 19 can be limited, so as to fix the silica gel plate 9.

[0030] Specifically, as shown in the figure, Figure 4 The installation plate 13 is provided with a fixed groove 16 corresponding to the limiting plate 15, and the limiting plate 15 is movably arranged in the fixed groove 16. Through the fixed groove 16, the moving direction of the limiting plate 15 can be limited.

[0031] Specifically, as shown in the figure, Figure 4 The sliding plate 19 is movably arranged in the connecting groove 14. By clamping the sliding plate 19 into the connecting groove 14, the silica gel plate 9 can be pre-positioned.

[0032] Specifically, as shown in the figure, Figure 1 As shown in the figure, an AOI detection machine comprises a detection machine body 1, and the detection machine body 1 comprises a positioning mechanism according to any one of the above. Through the arrangement of the positioning mechanism, the detection machine body 1 can better detect the product.

[0033] In this embodiment: by controlling the rotation of the motor 4, the bidirectional screw rod 5 can be driven to rotate, so as to drive the two installation plates 13 to move, thereby adjusting the distance between the two silica gel plates 9, so that the device can position the carriers 3 of different specifications, and the carriers 3 can be placed to the specified position, facilitating the detection machine body 1 to detect the products on the carriers 3. The elastic force of the elastic element 11 can dampen the carrier 3 when positioning the carrier 3, and the silica gel plate 9 can protect the carrier 3 again, avoiding damage to the carrier 3 due to excessive clamping force during positioning.

[0034] The specific scheme is: when the product on the carrier 3 needs to be detected, the worker places the carrier 3 on the horizontal plate 2, controls the rotation of the motor 4, drives the rotation of the bidirectional screw rod 5, drives the movement of the two groups of threaded blocks 7, adjusts the distance between the two groups of fixed plates 8, positions the carrier 3 to the fixed position, and through the elastic force of the elastic element 11, the carrier 3 can be clamped and the shock-absorbing purpose is achieved, so that the carrier 3 is protected, the carrier 3 is protected again through the silica gel plate 9, the part clamped in the positioning process is prevented from being scratched, the silica gel plate 9 is quickly replaced through the sliding plate 19 being clamped into or separated from the connecting groove 14, the silica gel plate 9 is prevented from being damaged, and the phenomenon that the carrier 3 is not positioned accurately occurs, and the rotating element 18 is rotated, the threaded rod 17 is driven to move, the limiting plate 15 rotationally connected with the threaded rod 17 is driven to slide in the fixed groove 16, and the sliding plate 19 is limited and fixed when the silica gel plate 9 is replaced.

[0035] Those skilled in the art should understand that the discussion of the above any embodiment is only exemplary; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as above, which are not provided in details for the sake of simplicity.

[0036] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such modifications, variations, and equivalents that fall within the spirit and scope of the present application are intended to be included within the scope of the present application.

Claims

1. A positioning mechanism comprising: The utility model provides a detection machine, which comprises a detection machine body (1) and a horizontal plate (2) provided with a carrier (3) on the detection machine body (1), characterized in that A positioning assembly is arranged on the horizontal plate (2) and comprises a bidirectional screw rod (5) arranged on the horizontal plate (2), a fixed plate (8) rotatably arranged on the bidirectional screw rod (5), an installation plate (13) arranged on the fixed plate (8), and a silica gel plate (9) arranged on the installation plate (13), and the positioning assembly is used for positioning the carrier (3). A replacement assembly is arranged on the installation plate (13) and comprises a limiting plate (15) arranged on the installation plate (13), a connecting groove (14) arranged on the installation plate (13), and a sliding plate (19) arranged on the silica gel plate (9), and the replacement assembly is used for replacing the silica gel plate (9).

2. A positioning mechanism according to claim 1, wherein The lower end of the fixed plate (8) is provided with a threaded block (7), and the horizontal plate (2) is provided with a sliding groove (6) corresponding to the threaded block (7), and the threaded block (7) is movably arranged in the sliding groove (6).

3. A positioning mechanism according to claim 2, wherein One side of the horizontal plate (2) is provided with a motor (4), the bidirectional screw rod (5) is arranged at the output end of the motor (4), the bidirectional screw rod (5) is threadedly arranged on the threaded block (7), and the bidirectional screw rod (5) penetrates through the sliding groove (6).

4. The positioning mechanism of claim 1, wherein The fixed plate (8) is internally provided with a placing groove (10), the placing groove (10) is internally provided with a telescopic rod (12), the installation plate (13) is arranged at one end of the telescopic rod (12), an elastic member (11) is arranged between the installation plate (13) and the placing groove (10), and the elastic member (11) is arranged outside the telescopic rod (12).

5. The positioning mechanism of claim 1, wherein The replacement assembly further comprises a threaded rod (17) arranged at one end of the limiting plate (15), one end of the threaded rod (17) is provided with a rotating member (18), and the threaded rod (17) penetrates through the installation plate (13).

6. A positioning mechanism according to claim 5, wherein The installation plate (13) is provided with a fixed groove (16) corresponding to the limiting plate (15), and the limiting plate (15) is movably arranged in the fixed groove (16).

7. A positioning mechanism according to claim 6, wherein The sliding plate (19) is movably arranged in the connecting groove (14).

8. An AOI inspection machine comprising an inspection machine body (1), characterized in that, The detection machine body (1) comprises the positioning mechanism according to any one of claims 1-7.

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