Visual inspection machine for PCB (Printed Circuit Board) welding spots

Abstract

The utility model relates to the technical field of visual inspection, in particular to a PCB welding spot visual inspection machine which comprises a supporting frame and a visual inspection instrument, the surface of the supporting frame is fixedly connected with a protective cover, a discharge groove is formed in the supporting frame, the upper surface of the supporting frame is fixedly connected with a fixing frame, and the upper surface of the fixing frame is fixedly connected with the visual inspection instrument. And a conveying belt is arranged on the upper surface of the supporting frame, a fixing block is fixedly connected to the interior of the discharging groove, an abutting plate is arranged on the surface of the fixing frame, and a rotating column is movably connected to the surface of the abutting plate. Through connection of the adjusting rod and the rotating handle, under the action of the adjusting rod, the effect of adjusting and controlling the connecting angle of the abutting plate on the fixing frame is achieved, the use range and performance of the abutting plate are improved, under the action of the supporting spring and the abutting block, the supporting stability performance of the inserting block in the mounting groove is improved, and under the abutting contact of the cleaning plate and the conveying belt, the conveying belt can be cleaned conveniently. The cleaning effect on the surface of the conveying belt is achieved, and the use performance of the conveying belt is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to visual inspection technical field, concretely is a kind of PCB pad visual inspection machine. BACKGROUND

[0002] Visual inspection is to replace human eye with machine to measure and judge, and visual inspection refers to converting the target to be taken into image signal by machine vision product, and transmitting to dedicated image processing system, and converting into digitized signal according to pixel distribution and brightness, color information.

[0003] When detecting PCB pad, the use of visual inspection machine can quickly detect the welding point, and avoid the occurrence of missed welding, but when using the existing visual inspection machine, there is no position limiting and deviation rectifying mechanism for PCB conveying position on the equipment, and the position of PCB changes during movement, which affects the accuracy of detection. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of PCB pad visual inspection machine to solve the problem that there is no position limiting and deviation rectifying mechanism for PCB conveying position on the equipment in the above background art, and the position of PCB changes during movement, which affects the accuracy of detection.

[0005] To achieve the above object, the utility model provides the following technical scheme, a kind of PCB pad visual inspection machine, including support frame and vision detector, the surface of the support frame is fixedly connected with protective cover, the inside of the support frame is provided with drain groove, the upper surface of the support frame is fixedly connected with fixed frame, the upper surface of the support frame is provided with conveying belt, the inside of the drain groove is fixedly connected with fixed block, the surface of the fixed frame is provided with resistance plate, the surface of the resistance plate is movably connected with rotating column, the surface of the fixed frame is penetrated and is connected with adjusting rod, the end of adjusting rod away from resistance plate is fixedly connected with handle, the surface of the fixed block is provided with installation slot, the inside of the installation slot is fixedly connected with support spring, the surface of the support spring is fixedly connected with resistance block, the inside of the installation slot is inserted with plug block, the surface of the plug block is fixedly connected with cleaning plate.

[0006] Preferably, the conveying belt is below the vision detector through the support frame, and the fixed frame is distributed on both sides of the conveying belt in two groups.

[0007] Preferably, the rotating column is in cylindrical shape, and the rotating columns are evenly distributed on the surface of the resistance plate, and the adjusting rod is rotatably connected with the resistance plate through the rotating shaft.

[0008] Preferably, the adjusting rod is rotatably connected with the fixed frame through thread, and the handle is fixedly connected with round rod on the side away from the adjusting rod, and the round rods are distributed on the surface of the handle in two groups.

[0009] Preferably, the mounting grooves are distributed in two groups on the surface of the fixing block, and the inner side of the mounting grooves is provided with a groove, and the cross-section of the groove is "T" shaped.

[0010] Preferably, the abutments are arranged in two opposing sets connected inside the mounting groove. The abutments are elastically connected to the mounting groove via a support spring, and the abutments abut against the insert block via the mounting groove.

[0011] Preferably, the insert block consists of two parts: one part is block-shaped and the other part is T-shaped. The cleaning plate abuts against the conveyor belt through the insert block and the fixing block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By connecting the support frame and the conveyor belt, the PCB board is positioned and transported under the action of the conveyor belt. By connecting the fixed frame and the backing plate, and the backing plate and the rotating column, the PCB board on the conveyor belt is corrected. By connecting the adjusting rod and the rotating handle, the angle of the backing plate on the fixed frame is adjusted, thereby improving the application range and performance of the backing plate.

[0014] 2. By connecting the trough and the fixing block, and with the fixing block and the mounting groove connected, the insertion block and the mounting groove are connected to achieve the support effect of the cleaning plate on the fixing block. Through the action of the support spring and the abutment block, the support stability of the insertion block in the mounting groove is improved. With the abutment contact between the cleaning plate and the conveyor belt, the surface of the conveyor belt is cleaned, and the performance of the conveyor belt is improved. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a frontal three-dimensional exploded view of the structure of this utility model;

[0017] Figure 3 This is a partial frontal three-dimensional sectional view of the structure of this utility model;

[0018] Figure 4 This is a three-dimensional exploded view of the structure of the fixing frame of this utility model;

[0019] Figure 5 This is a partial three-dimensional sectional exploded view of the fixing block of this utility model.

[0020] In the diagram: 1. Support frame; 2. Protective cover; 3. Drainage channel; 4. Vision inspection instrument; 5. Fixing frame; 51. Support plate; 52. Rotating column; 53. Adjusting rod; 54. Rotating handle; 6. Fixing block; 61. Mounting groove; 62. Support spring; 63. Support block; 64. Insertion block; 65. Cleaning plate; 7. Conveyor belt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 One embodiment provided by this utility model:

[0023] A PCB board solder joint visual inspection machine includes a support frame 1 and a visual inspection instrument 4. A protective cover 2 is fixedly connected to the surface of the support frame 1, and a groove 3 is formed inside the support frame 1. A fixing frame 5 is fixedly connected to the upper surface of the support frame 1, and a conveyor belt 7 is provided on the upper surface of the support frame 1. A fixing block 6 is fixedly connected inside the groove 3. A backing plate 51 is provided on the surface of the fixing frame 5, and a rotating column 52 is movably connected to the surface of the backing plate 51. An adjusting rod 53 is passed through the surface of the fixing frame 5, and the end of the adjusting rod 53 away from the backing plate 51 is fixed. The mounting block 6 is connected to a rotating handle 54. A mounting groove 61 is opened on the surface of the fixing block 6. A support spring 62 is fixedly connected to the inner side of the mounting groove 61. A stop block 63 is fixedly connected to the surface of the support spring 62. An insert block 64 is inserted into the inner side of the mounting groove 61. A cleaning plate 65 is fixedly connected to the surface of the insert block 64. Through the connection of the support frame 1 and the protective cover 2, the protective cover 2 achieves the protective effect on the vision inspection instrument 4 and the conveyor belt 7. Under the action of the fixing frame 5 and the stop plate 51, the position correction effect of the PCB board on the conveyor belt 7 is achieved.

[0024] Furthermore, the conveyor belt 7 acts below the vision inspection instrument 4 through the support frame 1, and the fixing frame 5 is distributed in two groups on both sides of the conveyor belt 7. Through the connection between the conveyor belt 7 and the support frame 1, and the connection between the vision inspection instrument 4 and the support frame 1, the visual inspection effect of the solder joints of the PCB board is realized. The vision inspection instrument 4 is an existing product, and its principle is existing technology, so it will not be described in detail here.

[0025] Furthermore, the rotating column 52 is cylindrical in shape and is evenly distributed on the surface of the back plate 51. The adjusting rod 53 is rotatably connected to the back plate 51 through the rotating shaft. Through the connection between the fixing frame 5 and the back plate 51, the rotational connection between the back plate 51 and the rotating column 52 achieves smooth sliding performance between the PCB board and the back plate 51.

[0026] Furthermore, the adjusting rod 53 is rotatably connected to the fixed frame 5 via a thread, and a round rod is fixedly connected to the side of the rotating handle 54 away from the adjusting rod 53. The round rods are distributed in two groups on the surface of the rotating handle 54. Through the connection between the adjusting rod 53 and the rotating handle 54, the angle of the abutment 51 on the fixed frame 5 can be adjusted under the rotatable connection between the adjusting rod 53 and the fixed frame 5, thereby improving its application range and performance.

[0027] Furthermore, the mounting grooves 61 are distributed in two groups on the surface of the fixing block 6. The inner side of the mounting groove 61 is provided with a groove, and the cross-section of the groove is "T" shaped. Through the connection between the fixing block 6 and the groove 3, the fixing block 6 and the mounting groove 61 are connected to achieve the support effect of the cleaning plate 65 on the support frame 1.

[0028] Furthermore, the abutment blocks 63 are connected in two opposing sets inside the mounting groove 61. The abutment blocks 63 are elastically connected to the mounting groove 61 through the support spring 62. The abutment blocks 63 abut against the insertion block 64 through the mounting groove 61. The connection between the mounting groove 61 and the support spring 62, and the connection between the support spring 62 and the abutment blocks 63, improves the abutment support effect of the insertion block 64 in the mounting groove 61.

[0029] Furthermore, the insert 64 consists of two parts: one part is block-shaped and the other part is T-shaped. The cleaning plate 65 abuts against the conveyor belt 7 through the insert 64 and the fixing block 6. With the insertion of the insert 64 and the mounting groove 61, and the abutting contact between the abutting block 63 and the insert 64, the cleaning plate 65 is supported on the fixing block 6, which facilitates its disassembly and assembly. With the abutting contact between the cleaning plate 65 and the conveyor belt 7, the cleaning operation on the surface of the conveyor belt 7 is completed.

[0030] Working principle: When visually inspecting the solder joints of a PCB board, the PCB board is placed on the conveyor belt 7, changing its position. With the connection between the fixing frame 5 and the abutment plate 51, and the connection between the adjusting rod 53 and the rotating handle 54, the angle of action of the abutment plate 51 is changed, correcting the position of the PCB board on the conveyor belt 7. Under the action of the vision inspection instrument 4, the visual inspection effect of the PCB board solder joints is achieved. With the connection between the slot 3 and the fixing block 6, and the connection between the fixing block 6 and the mounting slot 61, and the connection between the support spring 62 and the abutment block 63, the insert block 64 and the abutment block 63 are in contact, fixing the position of the insert block 64 in the mounting slot 61, achieving the support effect of the cleaning plate 65 on the fixing block 6. Through the contact between the cleaning plate 65 and the conveyor belt 7, the cleaning operation of the surface of the conveyor belt 7 is completed, improving the cleanliness of the surface of the conveyor belt 7.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A PCB solder joint visual inspection machine, comprising a support frame (1) and a visual inspection instrument (4), characterized in that: The surface of the support frame (1) is fixedly connected with a protective cover (2), the inside of the support frame (1) is provided with a row groove (3), the upper surface of the support frame (1) is fixedly connected with a fixed frame (5), the upper surface of the support frame (1) is provided with a conveying belt (7), the inside of the row groove (3) is fixedly connected with a fixed block (6), the surface of the fixed frame (5) is provided with a resisting plate (51), the surface of the resisting plate (51) is movably connected with a rotating column (52), the surface of the fixed frame (5) is connected with an adjusting rod (53), the end of the adjusting rod (53) away from the resisting plate (51) is fixedly connected with a rotating handle (54), the surface of the fixed block (6) is provided with a mounting groove (61), the inside of the mounting groove (61) is fixedly connected with a supporting spring (62), the surface of the supporting spring (62) is fixedly connected with a resisting block (63), the inside of the mounting groove (61) is inserted with an insertion block (64), the surface of the insertion block (64) is fixedly connected with a cleaning plate (65).

2. The PCB solder joint visual inspection machine according to claim 1, characterized in that: The conveying belt (7) is below the visual detector (4) through the support frame (1), the fixed frame (5) is distributed on both sides of the conveying belt (7).

3. The PCB solder joint visual inspection machine of claim 1, wherein: The rotating column (52) is cylindrical, the rotating column (52) is evenly distributed on the surface of the resisting plate (51), the adjusting rod (53) is rotatably connected with the resisting plate (51) through a rotating shaft.

4. The PCB solder joint visual inspection machine of claim 1, wherein: The adjusting rod (53) is rotatably connected with the fixed frame (5) through threads, the side of the rotating handle (54) away from the adjusting rod (53) is fixedly connected with a round rod, and the round rod is distributed on the surface of the rotating handle (54).

5. The PCB solder joint visual inspection machine of claim 1, wherein: The mounting groove (61) is distributed on the surface of the fixed block (6), the inside of the mounting groove (61) is provided with a groove, and the cross section of the groove is "T" shaped.

6. The PCB solder joint visual inspection machine of claim 1, wherein: The resisting block (63) is oppositely connected on the inside of the mounting groove (61), the resisting block (63) is elastically connected with the mounting groove (61) through the supporting spring (62), and the resisting block (63) is in contact with the mounting groove (61) and the insertion block (64).

7. The PCB solder joint visual inspection machine of claim 1, wherein: The insertion block (64) is composed of two parts, one part of the insertion block (64) is blocky, and the other part of the insertion block (64) is "T" shaped, and the cleaning plate (65) is in contact with the conveying belt (7) through the insertion block (64) and the fixed block (6).

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