Mistake-proof feeding structure with positioning function

Abstract

The utility model discloses an error-proofing feeding structure with a positioning function, which comprises a transition plate and a positioning pin, the positioning pin is arranged below the transition plate, the top of the transition plate is provided with a positioning hole for the top end of the positioning pin to pass through, the bottom of the transition plate is provided with a limiting hole, the limiting hole is communicated with the positioning hole, and the positioning hole is communicated with the transition plate. A photoelectric sensor is installed on the top of the transition plate and is composed of an emitter and a receiver. According to the utility model, the photoelectric sensor is matched with the avoiding slotted hole in the positioning pin, so that whether the product is positioned in place or not is detected in real time, when the positioning pin is completely inserted into the positioning hole, the light path of the photoelectric sensor is switched on, an induction signal is triggered, and if the product is deviated or the positioning hole is not aligned, the light path of the photoelectric sensor is blocked by the positioning pin; the system can immediately trigger abnormal early warning, and the error-proofing detection mechanism effectively eliminates the subsequent procedure problem caused by positioning misalignment, and improves the reliability and production efficiency of a production line.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic feeding, in particular to an anti-error feeding structure with a positioning function. Background Art

[0002] In the automated feeding process, materials often exhibit abnormal postures (such as skew, flipping, and angular deviation) or positioning failures (such as excessive position offset and inaccurate positioning) due to factors such as transmission vibration and tolerance of the material distribution mechanism. This makes it difficult for subsequent precision assembly and high-precision processing processes to meet positioning accuracy requirements, seriously affecting assembly accuracy and processing quality, and even causing equipment shutdowns or batch scrapping of materials, becoming a core pain point that restricts the efficient and stable operation of automated production lines.

[0003] Therefore, an anti-error feeding structure with a positioning function is invented to solve the positioning deviation and wrong material problems in the feeding link from the source, thereby improving the reliability and production efficiency of the production line. It is especially suitable for precision scenes such as semiconductor wafer photoresist coating and chip packaging glue brushing that have extremely high requirements for positioning accuracy and glue layer protection. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-error feeding structure with a positioning function, so as to solve the problem that positioning deviation and wrong material are easy to occur in the automatic feeding link.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-error feeding structure with a positioning function, comprising a transition plate and a positioning pin, the positioning pin being arranged below the transition plate, a positioning hole for the top end of the positioning pin to pass through being provided on the top of the transition plate, a limiting hole being provided on the bottom of the transition plate, the limiting hole being connected to the positioning hole, a photoelectric sensor being installed on the top of the transition plate, the photoelectric sensor being composed of a transmitter and a receiver, the transmitter and receiver being respectively arranged on both sides of the positioning hole, the light beam emitted by the transmitter being able to be received by the receiver, an avoidance slot being provided on the surface of the positioning pin, the avoidance slot enabling the light path formed between the transmitter and the receiver to pass smoothly.

[0006] With the help of the cooperation between the photoelectric sensor and the avoidance slot on the positioning pin, real-time detection of whether the product is positioned in place is achieved.

[0007] Preferably, a connecting block is provided directly below the transition plate, and a gap is left between the transition plate and the connecting block for the positioning pin to be raised and lowered. A fixed block is fixedly connected to the bottom of the connecting block, and a mounting hole is opened on the surface of the connecting block, and the mounting hole is provided directly above the fixed block.

[0008] By arranging a connecting block just below the transition plate and leaving a gap between the transition plate and the connecting block, space is provided for the positioning pin to rise and fall.

[0009] Preferably, a spring is provided inside the mounting hole, the bottom end of the spring is fixedly connected to the top of the fixing block, and the bottom end of the positioning pin extends downward and is movably inserted into the inside of the spring.

[0010] The spring design allows the positioning pin to have a certain elastic buffer space when contacting the product, which can adapt to the slight deviation of the product caused by gluing or other factors, and avoid damage to the product or glue layer caused by rigid contact.

[0011] Preferably, the surface of the positioning pin is expanded outward near the bottom end thereof to form a limiting block, and the top end of the spring is fixedly connected to the bottom end of the limiting block.

[0012] The design of the limit block limits the lifting range of the positioning pin to prevent it from being over-lifted.

[0013] Preferably, the diameter of the limiting hole is larger than the diameter of the positioning hole, the diameter of the limiting block is smaller than the diameter of the limiting hole, and the diameter of the limiting block is larger than the diameter of the positioning hole.

[0014] Through the cooperation between the limiting hole and the limiting block, the stable lifting and lowering of the positioning pin in the limiting hole is achieved. This design not only ensures the smooth movement of the positioning pin, but also limits its lifting range.

[0015] Preferably, the positioning pin adopts an ultra-smooth anti-stick chamfer design, and the top end of the positioning pin is provided with a circular chamfer, and the circular chamfer can form a guiding slope.

[0016] The ultra-smooth anti-stick chamfer design reduces the friction when the locating pin contacts the product, reducing the risk of damage to the product or adhesive layer. At the same time, the guide bevel design enables the locating pin to be inserted more smoothly into the hole on the product surface when contacting the product, improving the accuracy and efficiency of positioning.

[0017] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0018] 1. The photoelectric sensor works in conjunction with the avoidance slot on the locating pin to achieve real-time detection of product positioning. When the locating pin is fully inserted into the locating hole, the optical path of the photoelectric sensor is connected, triggering a sensing signal. If the product is offset or the locating hole is misaligned, the optical path of the photoelectric sensor is blocked by the locating pin, and the system immediately triggers an abnormality warning. This error-proofing detection mechanism effectively eliminates subsequent process problems caused by positioning errors, improving production line reliability and production efficiency.

[0019] 2. The positioning pin adopts an ultra-smooth anti-stick chamfer design, which reduces friction when in contact with the product and reduces the risk of damage to the product or adhesive layer. At the same time, the elastic buffering effect of the spring further avoids damage to the product or adhesive layer caused by rigid contact, ensuring product quality and process stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an exploded view of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the utility model when it is in working state;

[0022] Figure 3 This is a cross-sectional view of the overall structure of the utility model when it is in working state;

[0023] Figure 4 This is a structural diagram of the positioning pin of the utility model.

[0024] Description of reference numerals:

[0025] 1. Transition plate; 2. Locating pin; 3. Locating hole; 4. Limit hole; 5. Transmitter; 6. Receiver; 7. Avoidance slot; 8. Connecting block; 9. Fixing block; 10. Mounting hole; 11. Spring; 12. Limit block. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The utility model provides Figure 1-4 The shown structure has an error-proof feeding structure with a positioning function, and includes a transition plate 1 and a positioning pin 2. The positioning pin 2 is arranged below the transition plate 1. A positioning hole 3 is provided on the top of the transition plate 1 for the top end of the positioning pin 2 to pass through. A limiting hole 4 is provided at the bottom of the transition plate 1. The limiting hole 4 is connected to the positioning hole 3. A photoelectric sensor is installed on the top of the transition plate 1. The photoelectric sensor consists of a transmitter 5 and a receiver 6. The transmitter 5 and the receiver 6 are respectively arranged on both sides of the positioning hole 3. The light beam emitted by the transmitter 5 can be received by the receiver 6. An avoidance slot 7 is provided on the surface of the positioning pin 2. The avoidance slot 7 can allow the light path formed between the transmitter 5 and the receiver 6 to pass smoothly.

[0028] In one aspect of this embodiment, a connecting block 8 is provided directly below the transition plate 1, and a gap is left between the transition plate 1 and the connecting block 8 for the positioning pin 2 to be raised and lowered. A fixing block 9 is fixedly connected to the bottom of the connecting block 8, and a mounting hole 10 is provided on the surface of the connecting block 8. The mounting hole 10 is provided directly above the fixing block 9, and a spring 11 is provided inside the mounting hole 10. The bottom end of the spring 11 is fixedly connected to the top of the fixing block 9, and the bottom end of the positioning pin 2 extends downward and is movably inserted into the spring 11. The surface of the positioning pin 2 expands outward near its bottom end to form a limiting block 12, and the top of the spring 11 is fixedly connected to the bottom of the limiting block 12. The diameter of the limiting hole 4 is larger than the diameter of the positioning hole 3, the diameter of the limiting block 12 is smaller than the diameter of the limiting hole 4, and the diameter of the limiting block 12 is larger than the diameter of the positioning hole 3. The positioning pin 2 adopts an ultra-smooth anti-stick chamfer design, and the top of the positioning pin 2 is provided with a circular chamfer, which can form a guide slope.

[0029] The transmitter 5 and receiver 6 mentioned in the above content are both existing technical products, and their specific structures and functions are not described here in detail.

[0030] Working principle of this utility model:

[0031] Refer to the instruction manual Figure 1-4 When using the present invention, first, after the product is placed on the top of the transition plate 1, align the holes on the surface of the product with the positioning holes 3 on the top of the transition plate 1;

[0032] The connecting block 8 is pushed upward by a motion mechanism (not shown), and the positioning pin 2 moves upward synchronously with the connecting block 8. The rounded chamfer design on its front end can form a guiding slope. This design ensures that even if there is a position deviation of the hole on the surface of the product, the positioning pin 2 can still be adaptively aligned and attempt to penetrate the hole through its guiding slope.

[0033] The bottom end of the positioning pin 2 is sleeved with a spring 11. This design allows the positioning pin 2 to have a certain elastic buffer space when contacting the hole on the product surface. Therefore, when the product deviates slightly due to gluing or other factors, the positioning pin 2 can adapt to this deviation through elastic compensation, avoiding damage to the product or the glue layer caused by rigid contact.

[0034] When the positioning pin 2 is fully inserted into the positioning hole 3, the laser beam emitted by the transmitter 5 can pass through the avoidance slot 7 on the positioning pin 2 and directly reach the receiver 6 on the opposite side, forming a complete optical path, thereby triggering the sensing signal;

[0035] If the product position is offset or the positioning hole 3 is misaligned, the positioning pin 2 cannot be fully inserted, and the avoidance slot 7 will deviate from the laser path, causing the receiver 6 to remain in a no-signal state due to no laser injection. At this time, the system can accurately determine whether the positioning is in place and trigger an abnormal warning when the positioning fails, effectively eliminating subsequent process problems caused by inaccurate positioning.

Claims

1. A mis-feeding prevention structure with a positioning function, comprising a transition plate (1) and a positioning pin (2), characterized in that: The positioning pin (2) is arranged below the transition plate (1); a positioning hole (3) for the top end of the positioning pin (2) to pass through is provided on the top of the transition plate (1); a limiting hole (4) is provided on the bottom of the transition plate (1); the limiting hole (4) is communicated with the positioning hole (3); a photoelectric sensor is installed on the top of the transition plate (1); the photoelectric sensor consists of a transmitter (5) and a receiver (6); the transmitter (5) and the receiver (6) are respectively arranged on both sides of the positioning hole (3); the light beam emitted by the transmitter (5) can be received by the receiver (6); an avoidance slot (7) is provided on the surface of the positioning pin (2); the avoidance slot (7) can allow the light path formed between the transmitter (5) and the receiver (6) to pass smoothly.

2. The error-proof feeding structure with positioning function according to claim 1, characterized in that: A connecting block (8) is provided directly below the transition plate (1), a gap is left between the transition plate (1) and the connecting block (8) for the positioning pin (2) to be raised and lowered, a fixing block (9) is fixedly connected to the bottom of the connecting block (8), a mounting hole (10) is provided on the surface of the connecting block (8), and the mounting hole (10) is provided directly above the fixing block (9).

3. The error-proof feeding structure with positioning function according to claim 2, characterized in that: A spring (11) is provided inside the mounting hole (10), the bottom end of the spring (11) is fixedly connected to the top of the fixing block (9), and the bottom end of the positioning pin (2) extends downward and is movably inserted into the spring (11).

4. The error-proof feeding structure with positioning function according to claim 3, characterized in that: The surface of the positioning pin (2) is expanded outward near the bottom end thereof to form a limiting block (12), and the top end of the spring (11) is fixedly connected to the bottom end of the limiting block (12).

5. The error-proof feeding structure with positioning function according to claim 4, characterized in that: The diameter of the limiting hole (4) is larger than the diameter of the positioning hole (3), the diameter of the limiting block (12) is smaller than the diameter of the limiting hole (4), and the diameter of the limiting block (12) is larger than the diameter of the positioning hole (3).

6. The error-proof feeding structure with positioning function according to claim 1, characterized in that: The positioning pin (2) adopts an ultra-smooth anti-stick chamfer design, and the top end of the positioning pin (2) is provided with a circular chamfer, and the circular chamfer can form a guiding inclined surface.

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