SMT patch surface component defect detection device

Abstract

The utility model discloses an SMT patch surface component defect detection device, belongs to the technical field of SMT patches, aims to solve the problems that a horizontally arranged placing plate affects the operation of a transmission belt, leads to the abnormal overall detection streamline and affects the detection efficiency, and comprises the transmission belt, a support frame, a detection head, a limiting mechanism and a cleaning mechanism, the supporting frame is arranged on two sides of the middle of the conveying belt, the detection head is fixedly installed below the middle of the supporting frame, the limiting mechanisms are arranged on upper and lower sides of the middle of the conveying belt, and the cleaning mechanism is arranged on the left side below the conveying belt. According to the SMT patch detection device, through the arrangement of the limiting mechanism, SMT patches of different sizes can be subjected to limiting detection, the application range of the SMT patch detection device is widened, through the arrangement of the guide blocks with the inclined faces and the arc-shaped faces, patches in different positions can be adjusted, the detection accuracy is improved, and meanwhile through the arrangement of the cushion layer made of rubber materials, the detection accuracy is improved. The SMT patch is prevented from being damaged due to excessive stress, and the safety performance of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of SMT chip mounting, and particularly relates to a device for detecting defects of surface components of SMT chips. Background Technique

[0002] SMT chip mounting refers to the abbreviation of a series of process flows processed on the basis of a PCB, and the PCB is a printed circuit board. SMT is a surface mounting technology, which is the most popular technology and process in the electronic assembly industry: after SMT chip mounting processing, automatic optical detection technology needs to be used to detect the accuracy of the positions of various different chip components and the welding quality of the chip components. The range of PCB boards can range from fine-pitch high-density boards to low-density large-size boards.

[0003] In the prior art, there is an SMT chip mounting detection device with the patent publication number of CN221173465U. When the above patent is used, through the setting of the limiting mechanism, under the driving action of the driving mechanism, two limiting plates are pushed to move closer to each other, thereby realizing the automatic centering and limiting of the SMT chip, thus ensuring the position stability of the SMT chip during the detection by the detection probe, guaranteeing the comprehensiveness of the detection of the SMT chip by the detection probe, and further improving the quality of the detection of the SMT chip. However, there are still the following deficiencies in actual use: proceeding from reality, when the device is used, the placement plate is fixedly connected above the conveyor belt, and the SMT chip is placed inside the placement plate for detection. However, when the conveyor belt is transported through the arc surface position, the horizontally arranged placement plate will affect the operation of the conveyor belt, resulting in abnormal overall detection streamline and affecting the detection efficiency; moreover, during the detection process, it is inevitable that there will be some dust on the surface of the conveyor belt, which will cause the SMT chip to be soiled and affect the subsequent use effect.

[0004] Therefore, a device for detecting defects of surface components of SMT chips is needed to solve the problem that the horizontally arranged placement plate in the prior art affects the operation of the conveyor belt, resulting in abnormal overall detection streamline and affecting the detection efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to provide a device for detecting defects of surface components of SMT chips to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a device for detecting defects of surface components of SMT chips, including a conveyor belt, a support frame, a detection head, a limiting mechanism and a cleaning mechanism. The support frame is arranged on both sides of the middle of the conveyor belt. The detection head is fixedly installed below the middle of the support frame. The limiting mechanism is arranged on the upper and lower sides of the middle of the conveyor belt. The cleaning mechanism is arranged on the left side below the conveyor belt.

[0007] The limiting mechanism consists of a motor, a gear, a rack, a connecting plate, a sliding rod, a limiting block, a connecting rod, a guiding block and a cushion layer. A partition is fixedly connected to the lower middle part inside the support frame. The motor is fixedly connected to the middle part below the partition. The gear is connected to the output end of the motor and is rotatably connected below the partition.

[0008] It should be noted in the solution that the racks are symmetrically arranged on the left and right sides of the gear, and the racks mesh with the gear. The connecting plate is slidably connected to both sides of the vertical plate of the support frame, and the connecting plate is fixedly connected to one end of the rack away from the gear.

[0009] Furthermore, it is worth noting that the sliding rod is fixedly connected to the other side of the connecting plate and is slidably connected to the vertical plate of the support frame. The limiting block is fixedly connected to the bottom surface of the partition, and the sliding rod is slidably connected inside the limiting block. The other end of the sliding rod is fixedly connected with a baffle. The connecting rods are symmetrically and fixedly connected to one side above the connecting plate and are slidably connected to the support frame. The guiding block is fixedly connected to the other end of the connecting rod.

[0010] Even further, it should be noted that inclined surfaces are symmetrically arranged on the left and right sides of the guiding block, and an arc surface is arranged at one end of the inclined surface. The cushion layer is fixedly connected to the outside of the guiding block, and the material of the cushion layer is set as rubber material.

[0011] As a preferred implementation manner, the cleaning mechanism consists of a placement plate, support columns, a dust collection cover, springs, cleaning rods, brushes, a dust suction pump and a dust collection box. The placement plate is arranged below the conveyor belt. The support columns are symmetrically and fixedly connected above the placement plate. The dust collection cover is fixedly connected above the support columns.

[0012] As a preferred implementation manner, the springs are symmetrically and fixedly connected above the inner bottom surface of the dust collection cover. The cleaning rods are fixedly connected to the tops of the springs. The brushes are evenly installed above the cleaning rods.

[0013] As a preferred implementation manner, the dust suction pump and the dust collection box are respectively fixedly connected above the placement plate. The input end of the dust suction pump is communicated with the inside of the dust collection cover, and the output end of the dust suction pump is communicated with the inside of the dust collection box.

[0014] Compared with the prior art, a SMT patch surface component defect detection device provided by the present utility model has at least the following beneficial effects:

[0015] (1) Through the provided limiting mechanism, SMT patches of different sizes can be limited and detected, improving the applicable range of the device. Moreover, the guiding block with an inclined surface and an arc surface can adjust the misaligned patches, improving the detection accuracy. At the same time, through the provided cushion layer made of rubber material, it can prevent the SMT patch from being damaged due to excessive force during limiting, improving the safety performance of the device.

[0016] (2) Through the provided cleaning mechanism, the dust on the surface of the conveyor belt can be cleaned to ensure that the conveyor belt is clean, avoiding affecting the SMT patches. At the same time, the collected dust is uniformly collected into the interior of the dust collection box, facilitating the unified cleaning of the dust and reducing the working intensity of the staff. Description of the Drawings

[0017] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0018] Figure 2 is a schematic cross-sectional structure diagram of the present utility model;

[0019] Figure 3 is a schematic bottom surface structure diagram of the limiting mechanism of the present utility model;

[0020] Figure 4 is a schematic cross-sectional structure diagram of the limiting mechanism of the present utility model.

[0021] In the figure: 1, conveyor belt; 2, support frame; 3, detection head; 4, limiting mechanism; 5, cleaning mechanism; 401, motor; 402, gear; 403, rack; 404, connecting plate; 405, sliding rod; 406, limiting block; 407, connecting rod; 408, guiding block; 409, cushion layer; 501, placement plate; 502, support column; 503, dust collection cover; 504, spring; 505, cleaning rod; 506, brush; 507, suction pump; 508, dust collection box. Detailed Embodiment

[0022] The following further describes the present utility model in conjunction with embodiments.

[0023] Please refer to Figures 1-4 , the present utility model provides a device for detecting defects of surface components of SMT patches, including a conveyor belt 1, a support frame 2, a detection head 3, a limiting mechanism 4, and a cleaning mechanism 5. The support frame 2 is arranged on both sides of the middle of the conveyor belt 1, the detection head 3 is fixedly installed below the middle of the support frame 2, the limiting mechanism 4 is arranged on the upper and lower sides of the middle of the conveyor belt 1, and the cleaning mechanism 5 is arranged on the lower left side of the conveyor belt 1.

[0024] The limiting mechanism 4 is composed of a motor 401, a gear 402, a rack 403, a connecting plate 404, a sliding rod 405, a limiting block 406, a connecting rod 407, a guiding block 408 and a cushion layer 409. A partition is fixedly connected to the lower middle part inside the support frame 2, the motor 401 is fixedly connected to the middle part below the partition, the gear 402 is connected to the output end of the motor 401, and the gear 402 is rotatably connected below the partition.

[0025] Further as shown in Figure 2 , Figure 3 and Figure 4 It is worth specifically explaining that the racks 403 are symmetrically arranged on the left and right sides of the gear 402, and the racks 403 are meshed with the gear 402. The connecting plate 404 is slidably connected to both sides of the vertical plate of the support frame 2, and the connecting plate 404 is fixedly connected to one end of the rack 403 away from the gear 402.

[0026] Further as shown in Figure 2 , Figure 3 and Figure 4 It is worth specifically explaining that the sliding rod 405 is fixedly connected to the other side of the connecting plate 404, and the sliding rod 405 is slidably connected to the vertical plate of the support frame 2. The limiting block 406 is fixedly connected to the bottom surface of the partition, and the sliding rod 405 is slidably connected inside the limiting block 406. The other end of the sliding rod 405 is fixedly connected with a baffle. The connecting rods 407 are symmetrically and fixedly connected to one side above the connecting plate 404, and the connecting rods 407 are slidably connected to the support frame 2. The guiding block 408 is fixedly connected to the other end of the connecting rod 407.

[0027] Further as shown in Figure 2 , Figure 3 and Figure 4 It is worth specifically explaining that inclined surfaces are symmetrically arranged on the left and right sides of the guiding block 408, and an arc surface is arranged at one end of the inclined surface. The cushion layer 409 is fixedly connected to the outside of the guiding block 408, and the material of the cushion layer 409 is set as rubber material;

[0028] By setting the inclined surfaces and the arc surface, the misaligned patches can be adjusted and damage to the patches can be avoided. The rubber material has excellent elasticity, which means that when the guiding block 408 limits the SMT patch, it can provide sufficient pressure to ensure the stability of the patch, and at the same time can provide a certain buffer when the patch is subjected to external forces, preventing the patch from being damaged due to excessive limiting force.

[0029] According to the above working process, it can be known that: through the set limit mechanism 4, SMT patches of different sizes can be limited and detected, improving the applicable range of the device. Moreover, the guide block 408 with an inclined surface and an arc surface can adjust the misaligned patches, improving the detection accuracy. At the same time, through the set cushion layer 409 made of rubber material, it can prevent the SMT patch from being damaged due to excessive force during limiting, improving the safety performance of the device.

[0030] Further, as shown in Figure 1 and Figure 2 , it is specifically worth noting that the cleaning mechanism 5 is composed of a placement plate 501, support columns 502, a dust collection hood 503, springs 504, cleaning rods 505, brushes 506, a dust suction pump 507, and a dust collection box 508. The placement plate 501 is arranged below the conveyor belt 1, the support columns 502 are symmetrically and fixedly connected above the placement plate 501, and the dust collection hood 503 is fixedly connected above the support columns 502.

[0031] Further, as shown in Figure 1 and Figure 2 , it is specifically worth noting that the springs 504 are symmetrically and fixedly connected above the inner bottom surface of the dust collection hood 503, the cleaning rods 505 are fixedly connected to the tops of the springs 504, and the brushes 506 are evenly installed above the cleaning rods 505;

[0032] Through the elastic action of the set springs 504, the brushes 506 can be driven to closely adhere to the surface of the conveyor belt 1, so that the brushes 506 can clean the conveyor belt 1 more stably, improving the cleaning effect.

[0033] Further, as shown in Figure 1 and Figure 2 , it is specifically worth noting that the dust suction pump 507 and the dust collection box 508 are respectively fixedly connected above the placement plate 501. The input end of the dust suction pump 507 is communicated with the inside of the dust collection hood 503, and the output end of the dust suction pump 507 is communicated with the inside of the dust collection box 508;

[0034] Through the set dust collection hood 503, dust can be collected into the inside of the dust collection box 508, so as to facilitate the unified cleaning of dust and reduce the work intensity of the staff.

[0035] This solution has the following working process: When in use, first start the motor 401 to drive the gear 402 to rotate. The two-sided racks 403 mesh with the gear 402 to rotate, thereby driving the connecting plate 404 to move. At the same time, the sliding rod 405 is slidably connected inside the limiting block 406, which can improve the stability of the movement of the connecting plate 404. The connecting rod 407 drives the guide block 408 to move, and then adjusts the distance between the two guide blocks 408 to make the spacing suitable for the size of the patch. Then place the patch above the conveyor belt 1, and then the conveyor belt 1 conveys the patch to the lower part of the detection head 3 for detection. During the transmission process, when approaching the detection area below the detection head 3, the patch is first corrected by the inclined surface of the guide block 408, and then the position of the patch is limited by the vertical surface of the guide block 408, so that the patch passes through the lower part of the detection head 3 at a fixed position, improving the accuracy of detection. At the same time, when the conveyor belt 1 is running, when the conveyor belt 1 passes through the left side below, due to the elastic action of the spring 504, the cleaning rod 505 drives the brush 506 to closely adhere to the surface of the conveyor belt 1. When the conveyor belt 1 runs, the surface of the conveyor belt 1 is cleaned. At the same time, start the dust suction pump 507, and collect the dust through the dust collection cover 503, so that the dust is collected into the dust collection box 508, which is convenient for cleaning the dust and ensuring the normal detection of the patch.

[0036] In summary: Through the set limiting mechanism 4, SMT patches of different sizes can be limited and detected, improving the applicable range of the device. Moreover, the guide block 408 with an inclined surface and an arc surface can adjust the patches with incorrect positions, improving the accuracy of detection. At the same time, through the set cushion layer 409 made of rubber material, it can prevent the SMT patch from being damaged due to excessive force during limiting, improving the safety performance of the device; through the set cleaning mechanism 5, the dust on the surface of the conveyor belt 1 can be cleaned and collected, ensuring that the conveyor belt 1 is clean and avoiding affecting the SMT patch. At the same time, the collected dust is uniformly collected into the dust collection box 508, which is convenient for unified cleaning of the dust and reducing the work intensity of the staff.

Claims

1. A SMT surface component defect detection device, comprising a conveyor belt (1), a support frame (2), a detection head (3), a limit mechanism (4) and a cleaning mechanism (5), characterized in that: The support frame (2) is arranged on both sides of the middle part of the conveyor belt (1), the detection head (3) is fixedly installed at the lower middle part of the support frame (2), the limit mechanism (4) is arranged at the upper and lower sides of the middle part of the conveyor belt (1), and the cleaning mechanism (5) is arranged at the lower left side of the conveyor belt (1); The limiting mechanism (4) is composed of a motor (401), a gear (402), a rack (403), a connecting plate (404), a sliding rod (405), a limiting block (406), a connecting rod (407), a guide block (408) and a cushion layer (409); a partition is fixedly connected to the middle and lower part of the interior of the support frame (2); the motor (401) is fixedly connected to the middle part below the partition; the gear (402) is connected to the output end of the motor (401), and the gear (402) is rotatably connected to the bottom of the partition.

2. The SMT surface component defect detection device according to claim 1, characterized in that: The rack (403) is symmetrically arranged on the left and right sides of the gear (402), and the rack (403) and the gear (402) are meshed with each other. The connecting plate (404) is slidably connected to the two sides of the vertical plate of the support frame (2), and the connecting plate (404) is fixedly connected to one end of the rack (403) away from the gear (402).

3. The SMT surface component defect detection device according to claim 2, characterized in that: The sliding rod (405) is fixedly connected to the other side of the connecting plate (404), and the sliding rod (405) is slidably connected to the vertical plate of the support frame (2), the limiting block (406) is fixedly connected to the bottom surface of the partition, and the sliding rod (405) is slidably connected to the inside of the limiting block (406), and the other end of the sliding rod (405) is fixedly connected to a baffle, the connecting rod (407) is symmetrically fixedly connected to the upper side of the connecting plate (404), and the connecting rod (407) is slidably connected to the support frame (2), and the guide block (408) is fixedly connected to the other end of the connecting rod (407).

4. The SMT surface component defect detection device according to claim 3, characterized in that: The left and right sides of the guide block (408) are symmetrically provided with inclined surfaces, and an arc surface is provided at one end of the inclined surface. The cushion layer (409) is fixedly connected to the outside of the guide block (408), and the material of the cushion layer (409) is set to be a rubber material.

5. The SMT surface component defect detection device according to claim 4, characterized in that: The cleaning mechanism (5) is composed of a placement plate (501), a support column (502), a dust cover (503), a spring (504), a cleaning rod (505), a brush (506), a dust suction pump (507) and a dust collection box (508). The placement plate (501) is arranged below the conveyor belt (1), the support column (502) is symmetrically fixedly connected to the top of the placement plate (501), and the dust cover (503) is fixedly connected to the top of the support column (502).

6. The SMT surface component defect detection device according to claim 5, characterized in that: The spring (504) is symmetrically fixedly connected to the upper part of the inner bottom surface of the dust collecting cover (503), the cleaning rod (505) is fixedly connected to the top of the spring (504), and the brush (506) is evenly installed above the cleaning rod (505).

7. The SMT surface component defect detection device according to claim 6, characterized in that: The dust suction pump (507) and the dust collecting box (508) are respectively fixedly connected to the top of the placement plate (501); the input end of the dust suction pump (507) is connected to the inside of the dust collecting cover (503); and the output end of the dust suction pump (507) is connected to the inside of the dust collecting box (508).

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