Rotary feeding device for automatically screening positive electrode and negative electrode of component

Abstract

The invention relates to the field of photo-thermal equipment and component manufacturing thereof, in particular to a rotary feeding device for automatically screening positive and negative electrodes of components, which comprises a rotary conveying mechanism and a positive and negative electrode detecting and screening mechanism, the rotary conveying mechanism comprises a rotary disc capable of intermittently rotating, a clamping piece circumferentially arranged on the rotary disc and at least two clamping unlocking pieces; the clamping piece comprises a clamping block for clamping the component and an elastic reset structure for providing an acting force for downward pressing of the clamping block; the clamping unlocking piece can slide to the position below any clamping piece to lift the clamping piece. And the positive and negative electrode detecting and screening mechanism comprises a conduction test table for detecting positive and negative electrode pins of the components and a component recycling assembly, when abnormity is detected, the clamping unlocking piece lifts the clamping piece, and meanwhile, the component recycling assembly recycles the components. According to the device, the processing efficiency and the transfer efficiency of the photo-thermal equipment components are improved, the transfer matching time is shortened, meanwhile, the flexibility and the universality of the transfer device are improved, and the practicability of multi-scene processing is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photothermal equipment and its component manufacturing, in particular to a rotating feeding device for automatically screening positive and negative electrodes of components. BACKGROUND

[0002] In the field of lighting today, LED light-emitting diodes, as a kind of component in photothermal equipment, have been widely used due to their unique light-emitting principle and significant advantages. It is composed of a semiconductor chip and positive and negative pins, and uses a solid-state semiconductor chip to emit light. When a forward voltage is applied to the two ends, the carrier recombination emits light. This light-emitting method is energy-efficient, long-lasting, and fast-responding. In the manufacturing process of such components in photothermal equipment, multiple processing procedures such as pin shaping, shearing, straightening, and welding are required. Different manufacturers have different processing sequences and requirements, and customized production lines have become the mainstream. LED light-emitting diodes can be sequentially delivered to different workstations for processing according to the needs of manufacturers, promoting the vigorous development of the LED light bar industry. To achieve the continuity of component transfer to different processing workstations, the existing related technology usually uses a multi-station conveying device. This device needs to be customized according to the spacing and sequence of the processing workstations, and it integrates multiple function modules such as horizontal linear drive, vertical linear drive, overturning drive, and clamping mechanism. The horizontal linear drive module can accurately move the component to different workstations in the horizontal direction; the vertical linear drive module can adjust the position of the component in the vertical direction to adapt to different workstation heights; the overturning drive module can change the placement position of the component to meet the needs of special processing procedures for the orientation of the component; the clamping mechanism is responsible for grabbing and fixing the component to prevent it from shifting or falling during the transfer process. These function modules work together to complete the component transfer, ensuring the smooth progress of the processing flow. The existing multi-station conveying device has obvious defects. On the one hand, its structure is generally complex and scattered, with numerous function modules intertwined, occupying a large area, and the interval time of the coordinated operation of each function module is relatively long, resulting in a significant increase in the time it takes for the component to be transferred to different workstations, and the overall processing efficiency is not high. On the other hand, the versatility and flexibility are poor. Because different processing workstations have different requirements for the cooperation of the component loose clamping action, they can only be customized according to the different processing needs of manufacturers, making it difficult to adjust in time according to different processing procedures, limiting the adaptability and expandability of the production line, and the existing multi-station conveying device cannot automatically screen the positive and negative electrodes of the component, only realizing the transfer of the component. SUMMARY

[0003] In order to improve the processing efficiency of photothermal equipment components, improve the transfer efficiency of components, shorten the transfer cooperation time, and improve the flexibility and versatility of the transfer device, so that manufacturers can flexibly adjust the transfer device according to different processing and manufacturing needs, and improve the practicality of multiple scene processing, the present application provides a rotating feeding device for automatically screening positive and negative electrodes of components.

[0004] The application provides a rotary feeding device for automatically screening positive and negative electrodes of components and elements, which comprises a rotary conveying mechanism and a positive and negative electrode detection and screening mechanism. The rotary conveying mechanism comprises a rotary disc, a clamping piece and at least two clamping unlocking pieces. The rotary disc can rotate intermittently and is provided with a feeding station and a testing station. The clamping piece is circumferentially arranged on the rotary disc and comprises a clamping block, a connecting shaft and an elastic reset structure. The clamping block is arranged on the top of the rotary disc for clamping components and elements. The bottom of the clamping block is connected with the top of the connecting shaft. The connecting shaft penetrates through the rotary disc. The elastic reset structure is arranged between the connecting shaft and the rotary disc for providing a downward pressing force of the clamping block. The clamping unlocking piece can be slid to the lower side of any clamping piece to lift the clamping piece. When the clamping piece is lifted, a gap is formed between the clamping piece and the surface of the rotary disc for the components and elements to enter and exit. The positive and negative electrode detection and screening mechanism comprises a conduction test table arranged outside the rotary disc and a component and element recycling assembly. The conduction test table is used for detecting whether the positive and negative electrode pin positions of the components and elements in the testing station are normal. When an abnormality is detected, the clamping unlocking piece located below the testing station lifts the clamping piece to release the clamping of the components and elements. At the same time, the component and element recycling assembly recycles the components and elements. Through the above technical scheme, the rotary disc of the rotary conveying mechanism can rotate intermittently. The feeding station and the testing station are arranged on the rotary disc, so that the feeding and testing of the components and elements of the light and heat equipment can be carried out in an orderly manner. The clamping piece is circumferentially arranged on the rotary disc. The elastic reset structure can provide a downward pressing force of the clamping block to ensure the stable clamping of the components and elements. When the clamping unlocking piece is slid to the lower side of any clamping piece and lifts the clamping piece, a gap is formed between the clamping piece and the surface of the rotary disc, which facilitates the components and elements to enter and exit, and realizes the convenient clamping and loosening operation of the components and elements. Since the rotary disc can rotate intermittently and the clamping unlocking piece can be flexibly moved to the lower side of different clamping pieces, the components and elements can reach different stations in turn during the rotation of the rotary disc to perform corresponding operations. The clamping piece can be flexibly adjusted to loosen the clamping of different stations. The device has a simple structure, reduces the interval time of the cooperation of the functional modules, avoids the problems of the complex and scattered structure of the existing conveying device, large occupied area and long interval of the cooperation of the functional modules, and increases the time length of the transfer of the components and elements, thereby improving the efficiency of the transfer of the components and elements to different stations and the overall processing efficiency. The conduction test table of the positive and negative electrode detection and screening mechanism can detect whether the positive and negative electrode pin positions of the components and elements in the testing station are normal. Once an abnormality is detected, the clamping unlocking piece located below the testing station lifts the clamping piece to release the clamping of the components and elements. At the same time, the component and element recycling assembly recycles the components and elements, realizes the function of automatically screening the positive and negative electrodes of the components and elements, and makes up for the defects of the existing multi-station conveying device that cannot automatically screen the positive and negative electrodes of the components and elements.Moreover, the device improves versatility and flexibility through the cooperation of the rotating disc, the clamping piece, the clamping unlocking piece and the detection screening mechanism, and can screen and transfer components according to different processing procedures, instead of being customized according to different processing requirements of manufacturers as the existing conveying device, so that timely adjustment cannot be made according to different processing procedures, thereby enhancing the adaptability and expandability of the production line. Preferably, the elastic reset structure is sleeved on the connecting shaft, the top of the elastic reset structure is fixedly connected with the bottom of the rotating disc, and the bottom of the elastic reset structure is fixedly connected with the bottom of the connecting shaft. Through the above technical scheme, the elastic reset structure is sleeved on the connecting shaft, and the top of the elastic reset structure is fixedly connected with the bottom of the rotating disc and the bottom of the connecting shaft. When the clamping unlocking piece lifts the clamping piece, the connecting shaft moves upward, at this time, the elastic reset structure is stretched or compressed to store elastic potential energy. When the clamping unlocking piece no longer lifts the clamping piece, the elastic reset structure releases the elastic potential energy, and due to the connection relationship between the elastic reset structure and the bottom of the rotating disc and the bottom of the connecting shaft, the connecting shaft is pulled to move downward, thereby driving the clamping block to press downward, so as to realize stable clamping of the clamping block on the component, and ensure the reliability of clamping of the component in the rotating feeding process. Preferably, the bottom of the rotating disc extends horizontally to form an extension, and an annular groove is arranged on the upper surface of the extension, and the clamping unlocking piece can move circumferentially in the annular groove to be below any one of the clamping pieces. Through the above technical scheme, the bottom of the rotating disc extends horizontally to form an extension, and the annular groove is arranged on the upper surface of the extension, so that the clamping unlocking piece can move circumferentially in the annular groove. Since the clamping pieces are arranged circumferentially on the rotating disc, the annular groove provides a moving path for the clamping unlocking piece, and the clamping unlocking piece can move to be below any one of the clamping pieces along the annular groove, thereby flexibly operating the clamping pieces at different positions according to actual requirements, realizing clamping and unlocking of components at different positions, and meeting the use requirements of the rotating feeding device under different working conditions. Preferably, the clamping unlocking piece comprises an ejector cylinder and a sliding block, the ejector cylinder is arranged on the sliding block and the piston rod of the ejector cylinder is arranged vertically upward, and the sliding block is in sliding cooperation with the annular groove. Through the above technical scheme, since the sliding block is in sliding cooperation with the annular groove, the sliding block can move smoothly in the annular groove, and since the ejector cylinder is arranged on the sliding block and the piston rod is arranged vertically upward, when the sliding block moves to be below any one of the clamping pieces, the piston rod of the ejector cylinder extends upward to lift the clamping piece, so that the clamping piece and the surface of the rotating disc form a gap for components to enter and exit, thereby realizing unlocking of the clamping piece and facilitating feeding and discharging operations of the components. Preferably, a movable limiting structure is arranged between the sliding block and the annular groove to limit the movement of the sliding block. Through the above technical scheme, when the rotating feeding device operates, the sliding block needs to move along the annular groove to a suitable position to lift the clamping piece.If there is no movable limiting structure between the sliding block and the annular groove, the sliding block may move unnecessarily due to external force or inertia, resulting in inaccurate position, unable to accurately lift the clamping piece, and further affecting the clamping and unlocking operation of the component. After setting the movable limiting structure, the movement of the sliding block can be effectively limited, so that it can be stably stopped at the required position, ensuring the normal operation of the rotary feeding device and improving the stability and reliability of the device. Preferably, the movable limiting structure comprises a limiting block rotatably arranged on the sliding block, and a limiting groove is formed in the groove wall of the annular groove corresponding to each clamping piece. The limiting block can be rotatably clamped into the limiting groove to form a limiting fit. Through the above technical scheme, when the rotary feeding device is working, the sliding block needs to move to the appropriate position to operate the clamping piece. Since the sliding block moves in the annular groove, if there is no effective limiting, the position is easy to deviate, resulting in unable to accurately act on the corresponding clamping piece. After setting the rotatable limiting block and the limiting groove corresponding to the clamping piece, when the sliding block moves to the position below the corresponding clamping piece, the limiting block is rotated and clamped into the limiting groove, which can limit the movement of the sliding block and ensure that the sliding block is stably located at the position, so as to accurately lift the corresponding clamping piece, ensure the accuracy and stability of the cooperation of each part of the rotary feeding device, and improve the reliability of the device operation. Preferably, the continuity test table is provided with a positive test port and a negative test port facing the edge of the rotary disc. Through the above technical scheme, the continuity test table is provided with a positive test port and a negative test port facing the edge of the rotary disc. When the rotary disc rotates and the component reaches the test station, since the positive and negative test ports face the edge of the rotary disc, they can more accurately contact the positive and negative pins of the component, and thus can more accurately detect whether the positive and negative pin positions of the component at the test station are normal. Preferably, the clamping block is provided with a through hole between the component and the connecting shaft, the component recovery assembly comprises a blowing pipe connected to an external gas source and a recovery pipe, the blowing pipe is located above the through hole and is aligned with the through hole, and the pipe opening of the recovery pipe is aligned with the component in the gap. Through the above technical scheme, since the clamping block is provided with a through hole between the component and the connecting shaft, and the blowing pipe of the component recovery assembly is located above the through hole and is aligned with the through hole, and the pipe opening of the recovery pipe is aligned with the component in the gap, when the component needs to be recovered, the blowing pipe is aligned with the through hole and blows air, the airflow acts on the component through the through hole, and under the pushing of the airflow, the component is blown from the gap to the recovery pipe, thereby achieving effective recovery of the component. Preferably, the bottom of the rotary disc is provided with a indexing rotation mechanism, which controls the intermittent rotation of the rotary disc through a preset indexing angle, so that the clamping piece is sequentially stopped at different processing stations. Through the above technical scheme, the indexing rotation mechanism is arranged at the bottom of the rotary disc, and the rotary disc can be controlled to rotate intermittently according to the preset indexing angle.Since the clamping pieces are circumferentially arranged on the rotating disc, intermittent rotation of the rotating disc can drive the clamping pieces to move synchronously, so that the clamping pieces can be sequentially docked at different processing stations, realizing orderly transfer of the components between different processing stations, meeting the needs of different processing procedures, and improving the continuity and efficiency of production. Preferably, the device further comprises a component feeding mechanism, which comprises a vibrating disc and a turnover transfer structure. The turnover transfer structure turns over the components at the discharge end of the vibrating disc towards the feeding station, and transfers the components to the feeding station. By adopting the above technical scheme, the rotating feeding device is equipped with a component feeding mechanism. The vibrating disc in the mechanism can orderly arrange and convey the components to the discharge end. The turnover transfer structure can clamp the components at the discharge end of the vibrating disc, and then turn over them towards the feeding station of the rotating disc, so as to transfer the components to the feeding station. In this way, automatic feeding of the components is realized, avoiding the tediousness and inefficiency of manual feeding, making the whole feeding process more continuous and efficient, and improving the automation degree and overall working efficiency of the rotating feeding device.

[0005] In summary, the present application has at least one of the following beneficial technical effects: 1. Since the rotating conveying mechanism and the positive and negative electrode detection and screening mechanism cooperate, the functions of rotating conveying and positive and negative electrode detection and screening are integrated, avoiding the interweaving of numerous functional modules, making the overall structure more compact compared with the existing conveying device, thereby reducing the floor area; at the same time, the interval time of cooperation of each functional module is reduced, thereby shortening the time of transferring the components to different stations and improving the overall processing efficiency; 2. The rotating disc can rotate intermittently, so that each clamping piece circumferentially arranged on the rotating disc can be sequentially docked at different processing stations, and the clamping unlocking piece can be flexibly stopped below any clamping piece along the annular groove to act on the clamping piece. In this way, the loosening of the clamping pieces on the rotating disc can be adjusted in time according to the processing needs of the components in different processing procedures, improving the versatility and flexibility of the device and enhancing the adaptability and expandability of the production line; 3. The positive and negative electrode detection and screening mechanism detects whether the positive and negative electrode pin positions of the components at the test station through the conduction test table. When an abnormality is detected, the clamping of the components can be automatically released, and the components can be recovered through the ingenious design of the air blowing pipe blowing air through the through hole of the clamping block, so that the positive and negative electrodes of the components can be automatically screened, making up for the defect that the existing multi-station conveying device cannot automatically screen. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 is a structure diagram of the rotating feeding device for automatically screening the positive and negative electrodes of the components according to Embodiment 1; Figure 2 is Figure 1 A point of the local enlarged view of Figure 3is Figure 1 a B point local enlarged view of; Figure 4 is a structural view of a rotating conveying mechanism for automatically screening positive and negative electrodes of components and elements of an embodiment 1.

[0007] Reference signs: 1, component and element feeding mechanism; 2, rotating conveying mechanism; 3, positive and negative electrode detection and screening mechanism; 11, vibrating disc; 12, overturning and transferring structure; 21, rotating disc; 22, clamping piece; 23, clamping unlocking piece; 24, extension part; 25, annular groove; 211, feeding station; 212, testing station; 221, clamping block; 222, connecting shaft; 223, elastic reset structure; 2211, through hole; 231, sliding block; 232, ejecting air cylinder; 233, movable limiting structure; 2331, limiting block; 2332, limiting groove; 31, conduction test table; 32, component and element recycling assembly; 311, positive electrode test port; 312, negative electrode test port; 321, air blowing pipe; 322, recycling pipe. DETAILED DESCRIPTION

[0008] The following will be described in detail in combination with the accompanying Figures 1-4 The application is further described in detail.

[0009] The rotating feeding device for automatically screening positive and negative electrodes of components and elements provided by the embodiment of the application, with reference to Figure 1 , comprises a component and element feeding mechanism 1, a rotating conveying mechanism 2 and a positive and negative electrode detection and screening mechanism 3, wherein the rotating conveying mechanism 2 and the positive and negative electrode detection and screening mechanism 3 cooperate with each other, can realize rotating conveying of components and elements and automatic screening of positive and negative electrodes, and improve the continuity of component and element transfer in different processing stations and screening efficiency.

[0010] Specifically, the component feeding mechanism 1 of the embodiment includes a vibrating disc 11 and a turnover transfer structure 12. The turnover transfer structure 12 flips the components at the discharge end of the vibrating disc 11 towards the feeding station 211 and transfers the components to the feeding station 211. The vibrating disc 11 orderly arranges and conveys the components to the discharge end through vibration. The vibrating disc 11 is usually provided with a spiral track inside. Under the action of vibration, the components move upwards along the spiral track to a linear vibration track and finally reach the discharge end. The turnover transfer structure 12 of the embodiment includes a cylinder, an L-shaped rod, a push rod, a rotating block and a clamping jaw. The piston rod of the cylinder is rotationally connected to one end of the L-shaped rod. The right angle position of the L-shaped rod is rotationally connected to the rotary conveying mechanism 2 through a hinged seat. The other end of the L-shaped rod is rotationally connected to the push rod. The end of the push rod away from the L-shaped rod is rotationally connected to the rotating block. The rotating block is provided with a clamping jaw for clamping the components. The cylinder drives the L-shaped rod to rotate, thereby driving the push rod to rotate the rotating block by 180°. In particular, the bottom of the rotating block is provided with a sliding mechanism. The sliding mechanism can drive the rotating block to move a distance towards the discharge end of the vibrating disc 11, so that the clamping jaw can clamp the pin portion of the component, and then move out of the discharge end of the vibrating disc 11 and flip by 180° to make the end of the component away from the pin towards the rotary conveying mechanism 2.

[0011] Specifically, the rotary conveying mechanism 2 of the embodiment includes a rotary disc 21, six clamping pieces 22 and three clamping unlocking pieces 23. The rotary disc 21 is provided with adjacent feeding stations 211 and test stations 212. The feeding stations 211 and the test stations 212 can serve as a blank station to provide more sufficient time for subsequent detection. In other embodiments, the positions of the test stations 212 can be flexibly adjusted according to actual conditions and the number of processing stations. The bottom of the rotary disc 21 is provided with a indexing rotation mechanism. The indexing rotation mechanism controls the intermittent rotation of the rotary disc 21 by a preset indexing angle, so that the clamping pieces 22 are sequentially stopped at different processing stations. The indexing rotation mechanism here is a common cam indexer. The cam indexer is a high-precision rotary device. It has the advantages of high indexing accuracy, stable operation, large torque transmission, self-locking during positioning, compact structure and the like. It can accurately control the rotation angle and stopping time of the rotary disc 21, and ensure that each clamping piece 22 is accurately stopped at the corresponding station.

[0012] Reference Figure 1 and Figure 2Particularly, the bottom of the rotating disc 21 horizontally extends to form an extension 24, and the upper surface of the extension 24 is provided with an annular groove 25, the clamping unlocking member 23 can move along the annular groove 25 to be below any one of the clamping members 22, and the clamping unlocking member 23 can be flexibly adjusted to move along the annular groove 25 to the work station where the clamping member 22 needs to be adjusted to be loose, for example, the third work station away from the feeding work station 211 suddenly needs to be adjusted to process, and the clamping member 22 needs to be loosened, then the clamping unlocking member 23 can be moved below the work station to drive the clamping member 22 of the work station to move.

[0013] The six clamping members 22 are circumferentially arranged on the rotating disc 21, and the six clamping members 22 are arranged at uniform intervals, each of the clamping members 22 includes a clamping block 221, a connecting shaft 222 and an elastic reset structure 223. The clamping block 221 is provided with a through hole 2211 between the component and the connecting shaft 222, the clamping block 221 is arranged on the top of the rotating disc 21 for clamping the component, the bottom of the clamping block 221 is connected with the top of the connecting shaft 222, the connecting shaft 222 penetrates through the rotating disc 21, and the elastic reset structure 223 is arranged between the connecting shaft 222 and the rotating disc 21 to provide a downward pressing force for the clamping block 221. The elastic reset structure 223 in the embodiment is a spring, the spring is sleeved on the outer wall of the connecting shaft 222, the top of the spring is fixedly connected with the bottom of the rotating disc 21, and the bottom of the spring is fixedly connected with the bottom of the connecting shaft 222. The spring has good elasticity and can continuously provide a stable downward pressing force for the clamping block 221. When the spring is compressed, a spring force proportional to the compression amount is generated, which makes the clamping block 221 tightly press on the component to ensure the stability of the component in the transfer process. The shape of the clamping block 221 can be matched and designed according to the shape of the component, for example, for a circular component, the clamping surface of the clamping block 221 can be designed to be arc-shaped, so that the clamping block 221 can better fit the component and increase the stability of clamping. The connecting shaft 222 can be a cylindrical metal rod, which can be fixed together with the clamping block 221 in a threaded connection manner. The threaded connection manner is convenient for disassembly and replacement, and is more convenient for maintenance and repair.

[0014] With reference to Figure 3 and Figure 4Wherein, the clamping unlocking piece 23 can slide to the underneath of any clamping piece 22 to lift the clamping piece 22, for driving the clamping piece 22 to clamp or unclamp the component, when the clamping piece 22 is lifted by the clamping unlocking piece 23, the bottom of the clamping piece 22 and the surface of the rotating disc 21 form a gap for the component to go in and out. Specifically, the clamping unlocking piece 23 comprises an ejection cylinder 232 and a sliding block 231, the ejection cylinder 232 is arranged on the sliding block 231 and the piston rod thereof is arranged vertically upward, the sliding block 231 is in sliding cooperation with the annular groove 25. The contact surface between the sliding block 231 and the annular groove 25 is provided with a T-shaped protrusion, and the two side groove walls of the corresponding annular groove 25 are provided with T-shaped grooves matched with the T-shaped protrusion, so that the T-shaped protrusion can make circumferential motion coaxially with the rotating disc 21 in the T-shaped groove.

[0015] Specifically, the sliding block 231 and the annular groove 25 are provided with movable limiting structures 233 for limiting the movement of the sliding block 231. The movable limiting structure 233 comprises a limiting block 2331 rotatably arranged on the sliding block 231, and the groove wall of the annular groove 25 is provided with a limiting groove 2332 corresponding to each clamping piece 22, and the limiting block 2331 is rotatably clamped into the limiting groove 2332 to form limiting cooperation. Specifically, the surface of the sliding block 231 is provided with a rectangular groove structure, and the limiting block 2331 is rotatably arranged in the rectangular groove structure through a rotating shaft and can be flipped around the horizontal shaft thereof. When it is needed to lift a certain clamping piece 22, the sliding block 231 is moved to the underneath of the clamping piece 22 along the annular groove 25, then the limiting block 2331 is downwardly rotated to be clamped into the limiting groove 2332, after the position is fixed, the piston rod of the cylinder is upwardly extended to contact the bottom of the connecting shaft 222, so as to upwardly lift the connecting shaft 222, and then make the clamping block 221 form a gap with the surface of the rotating disc 21. In this process, the movable limiting structure 233 plays a key role, which ensures that the sliding block 231 will not displace when lifting the clamping piece 22, so as to ensure the accuracy and stability of the lifting action. Wherein, each sliding block 231 is provided with two movable limiting structures 233, and the two movable limiting structures 233 are symmetrically arranged on the two sides of the sliding block 231, and the two sides of the corresponding annular groove 25 are provided with limiting grooves 2332. Specifically, the annular groove 25 of the embodiment is provided with an avoidance groove for facilitating the T-shaped protrusion to be inserted into the annular groove 25 from top to bottom, the sliding block 231 is inserted into the annular groove 25 along the avoidance groove, so that the T-shaped protrusion can make circumferential motion along the T-shaped groove of the annular groove 25.

[0016] Referring to Figure 1 and Figure 3Specifically, the positive and negative electrode detection and screening mechanism 3 includes a conduction test table 31 and a component recycling assembly 32 arranged outside the rotating disc 21. The conduction test table 31 is provided with a positive electrode test port 311 and a negative electrode test port 312 facing the edge of the rotating disc 21. The conduction test table 31 is provided with a cylinder and a pressing plate. When the positive and negative electrode pins of the component rotate to directly above the positive electrode test port 311 and the negative electrode test port 312, the cylinder drives the pressing plate to move downward, and the two pins of the component are pressed into the positive electrode test port 311 and the negative electrode test port 312 for conduction test. The conduction test table 31 is used to detect whether the position of the positive and negative electrode pins of the component in the test station 212 is normal. When an abnormality is detected, the cylinder drives the pressing plate to move upward to release the component, the clamping unlocking part 23 below the test station 212 lifts the clamping part 22 to release the clamping of the component, and the component recycling assembly 32 recycles the component. When the clamping part 22 of the feeding station 211 clamps the component and rotates to the test station 212, the positive and negative electrode pins of the component contact the positive electrode test port 311 and the negative electrode test port 312 respectively. The positive electrode test port 311 and the negative electrode test port 312 of the conduction test table 31 are both provided with a conductive sheet, and the conductive sheet is electrically connected with an external test power supply. Whether the position of the positive and negative electrode pins is normal is judged by detecting the conduction of the current. From the circuit principle, if the position of the positive and negative electrode pins of the component is normal, the current can form a complete loop between the conduction test table 31 and the component, and the conduction test table 31 can detect the current; if the position of the positive and negative electrode pins is abnormal, the current cannot be normally conducted, and the conduction test table 31 will judge that the component is abnormal. The conduction test table 31 feeds back the abnormality to the central control system.

[0017] The component recycling assembly 32 comprises a blowing pipe 321 connected to an external gas supply and a recycling pipe 322. The blowing pipe 321 is located above the through hole 2211 of the clamping block 221 of the test station 212 and blows gas in alignment with the through hole 2211. The recycling pipe 322 is arranged on the pressing plate and moves up and down synchronously with the pressing plate. The nozzle of the recycling pipe 322 is aligned with the component in the gap. The nozzle of the recycling pipe 322 is designed to avoid the conduction test table 31, so that the component can pass above the conduction test table 31 and enter the recycling pipe 322. When the clamping block 221 clamps the component and rotates to the test station 212, and the component is detected to have abnormal positive and negative electrode pin positions by the conduction test table 31, the pressing plate releases the component and moves upward, driving the recycling pipe 322 to move upward, so that the nozzle of the recycling pipe 322 is aligned with the component. At the same time, the clamping unlocking part 23 of the test station 212 lifts the clamping part 22 to release the clamping of the component in the test station 212. At the same time, the central control system controls the external gas supply to supply gas to the blowing pipe 321, so that the blowing pipe 321 blows gas in alignment with the through hole 2211. The component is blown into the recycling pipe 322 by the power of the airflow. Here, the principle of fluid mechanics is used. A large pressure difference is generated when a high-speed airflow passes through the through hole 2211, which is sufficient to blow the component from above the conduction test table 31 into the recycling pipe 322.

[0018] The implementation principle of the embodiment is as follows: Figure 4 The rotating disc 21 of the rotating conveying mechanism 2 is intermittently rotated to sequentially convey the components to the feeding station 211 and the test station 212. During rotation, the clamping part 22 stably clamps the component by using the elastic reset structure 223 to ensure that the component does not displace or fall during transfer. When it is necessary to adjust the clamping state of the component according to actual processing requirements, the clamping unlocking part 23 is movable along the annular groove 25 to lift the clamping part 22 below the corresponding clamping part 22 to form a gap for the component to enter and exit. The positive and negative electrode detection and screening mechanism 3 detects the positions of the positive and negative electrode pins of the component by the conduction test table 31. The abnormal component is recycled by the component recycling assembly 32. The component feeding mechanism 1 realizes automatic feeding of the component. The entire device has a compact structure, reduces the floor area, and has a close cooperation between parts, greatly shortens the time length of the component transfer between different stations, and improves the overall processing efficiency. At the same time, the device can automatically screen the positive and negative electrodes of the component, enhances the adaptability and expandability of the production line, and has obvious improvement and promotion compared with the prior art.

[0019] Embodiment 2 The difference between the embodiment and the above-mentioned embodiments is that the movable limiting structure 233 adopts the electromagnetic adsorption mode to limit the movement of the sliding block 231. The movable limiting structure 233 of the embodiment includes an electromagnet arranged on the sliding block 231 and a magnetic adsorption block arranged on the corresponding position of the groove wall of the annular groove 25 corresponding to each clamping piece 22. When the sliding block 231 moves to the position below the specified clamping piece 22, the electromagnet is powered to generate magnetism, and the magnetic adsorption block is adsorbed with each other, so as to fix the position of the sliding block 231. The electromagnet can be connected to the power supply through the wire, and the magnetism of the electromagnet is controlled by controlling the on-off of the current. Compared with the mode that the limiting block 2331 and the limiting groove 2332 are matched in the limiting block 2331 of the embodiment 1, the movable limiting structure 233 has the advantages of fast response speed and convenient operation, and can avoid mechanical wear and tear, and improve the service life of the equipment.

[0020] Embodiment 3 The difference between the embodiment and the above-mentioned embodiments is that the spring top abuts against the bottom of the rotating disc 21, the bottom of the connecting shaft 222 is provided with an annular clamping groove matched with the profile of the spring, and the bottom of the spring can be clamped into the clamping groove of the bottom of the connecting shaft 222, so as to facilitate the disassembly of the clamping block 221 according to the actual processing requirement.

[0021] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A rotary feeding device for automatically screening the positive and negative electrodes of components, characterized in that, Including rotating conveying mechanism (2) and positive and negative electrode detection screening mechanism (3), the rotating conveying mechanism (2) includes rotating disc (21), clamping piece (22) and at least two clamping unlocking pieces (23); The rotating disc (21) can be intermittently rotated, and the rotating disc (21) is provided with a feeding station (211) and a test station (212); The clamping piece (22) is circumferentially arranged on the rotating disc (21), and the clamping piece (22) comprises a clamping block (221), a connecting shaft (222) and an elastic reset structure (223), the clamping block (221) is arranged on the top of the rotating disc (21) for clamping components, the bottom of the clamping block (221) is connected with the top of the connecting shaft (222), the connecting shaft (222) penetrates the rotating disc (21), and the elastic reset structure (223) is arranged between the connecting shaft (222) and the rotating disc (21) to provide a downward pressing force of the clamping block (221); The clamping unlocking piece (23) can be slid to the lower side of any clamping piece (22) to lift the clamping piece (22), and when the clamping piece (22) is lifted, a gap is formed between the surface of the rotating disc (21) and the clamping piece (22) to allow components to enter and exit; The positive and negative electrode detection screening mechanism (3) comprises a conduction test table (31) and a component recycling assembly (32) arranged outside the rotating disc (21), the conduction test table (31) is used for detecting whether the positive and negative electrode pin positions of the components in the test station (212) are normal, when an abnormality is detected, the clamping unlocking piece (23) located below the test station (212) lifts the clamping piece (22) to release the clamping of the components, and the component recycling assembly (32) recycles the components.

2. The rotary feeding device for screening positive and negative electrodes of components automatically according to claim 1, characterized in that, The elastic reset structure (223) is sleeved on the connecting shaft (222), the top of the elastic reset structure (223) is fixedly connected with the bottom of the rotating disc (21), and the bottom of the elastic reset structure (223) is fixedly connected with the bottom of the connecting shaft (222).

3. The rotary feeding device for screening positive and negative electrodes of components automatically according to claim 1, characterized in that, The bottom of the rotating disc (21) extends horizontally to form an extension (24), an annular groove (25) is arranged on the upper surface of the extension (24), and the clamping unlocking piece (23) can move along the circumference of the annular groove (25) to the lower side of any clamping piece (22).

4. The rotary feeding device for screening positive and negative electrodes of components automatically according to claim 3, characterized in that, The clamping unlocking piece (23) comprises an ejection air cylinder (232) and a sliding block (231), the ejection air cylinder (232) is arranged on the sliding block (231), and the piston rod of the ejection air cylinder (232) is arranged vertically upward, and the sliding block (231) is in sliding cooperation with the annular groove (25).

5. The rotary feeding device for screening positive and negative electrodes of components automatically according to claim 4, characterized in that, An active limiting structure (233) is arranged between the sliding block (231) and the annular groove (25) to limit the movement of the sliding block (231).

6. The rotary feeding device for screening positive and negative electrodes of components automatically according to claim 5, characterized in that, The activity limiting structure (233) comprises a limiting block (2331) rotatably arranged on the sliding block (231), a limiting groove (2332) is arranged on the groove wall of the annular groove (25) corresponding to each clamping piece (22), and the limiting block (2331) is rotatably clamped into the limiting groove (2332) to form limiting cooperation.

7. The rotary feeding device for screening positive and negative electrodes of components automatically according to claim 1, characterized in that, The on test table (31) is provided with a positive test port (311) and a negative test port (312) towards the edge of the rotating disc (21).

8. The rotary feeding device for screening positive and negative electrodes of components automatically according to claim 1, characterized in that, The clamping block (221) is provided with a through hole (2211) between the component and the connecting shaft (222), the component recycling assembly (32) comprises a blowing pipe (321) connected with an external gas supply and a recycling pipe (322), the blowing pipe (321) is located above and aligned with the through hole (2211), the pipe opening of the recycling pipe (322) is aligned with the component in the gap, and the blowing pipe (321) blows air to align with the through hole (2211) to blow the component into the recycling pipe (322).

9. The rotary feeding device for screening positive and negative electrodes of components automatically according to claim 1, characterized in that, The bottom of the rotating disc (21) is provided with a dividing rotation mechanism, the dividing rotation mechanism controls intermittent rotation of the rotating disc (21) through a preset dividing angle, and the clamping piece (22) is sequentially stopped at different processing stations.

10. The rotary feeding device for screening positive and negative electrodes of components automatically according to claim 1, characterized in that, Further comprising a component feeding mechanism (1), the component feeding mechanism (1) comprises a vibrating disc (11) and a turnover transfer structure (12), the turnover transfer structure (12) turns over the component at the discharging end of the vibrating disc (11) towards the feeding station (211) to transfer the component to the feeding station (211).

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