Miniature circuit breaker thermomagnetic assembly automatic feeding machine

Abstract

The application discloses a kind of automatic loading machine of small circuit breaker thermomagnetic assembly, the loading machine includes several material trays, rack, detection mechanism, tray servo lifting mechanism, single tray disengaging positioning mechanism, tray servo moving mechanism, product clamping servo mechanism and PLC controller, the several material trays are overlapped to form a whole material tray;Loading machine realizes automation transportation, loading, improves production efficiency, reduces intermediate transfer storage link, is conducive to large-scale production, can extract production data, realizes data-based visual quality management and production management, saves labor cost and is easy to operate.

Description

Technical Field

[0001] This invention relates to the field of automated production technology for circuit breakers, specifically to an automatic feeding machine for thermomagnetic components of small circuit breakers. Background Technology

[0002] Currently, the loading of thermal and magnetic components for miniature circuit breakers requires manual placement of entire material boxes. After the thermal and magnetic components are removed from the material boxes for assembly, the entire empty material box is manually removed, resulting in low handling efficiency. Furthermore, manually removing overlapping material boxes poses a safety risk.

[0003] While existing automatic feeding mechanisms for thermal and magnetic components of miniature circuit breakers are equipped with automated conveyor systems for handling, the existing technology has some drawbacks that it has not been able to overcome. First, the empty trays after removing the thermal and magnetic components need to be separated from the entire tray system. Existing technology uses a tray conveyor belt to transport the empty trays away, which results in a large gap and long travel distance between the full tray station and the recycling tray station. This leads to a decrease in the efficiency of tray rotation, recycling, and reloading.

[0004] Secondly, existing technologies involve a full material tray running on a material tray conveyor belt. Due to the arrangement of multiple material compartments on the tray and the uncertainty of the coordinates of the material tray conveyor belt displacement, a detection unit needs to be set up to detect the position coordinates of the thermomagnetic components. Then, a high-performance industrial robotic arm is used to grab the thermomagnetic components in each material compartment, which increases the cost of the equipment.

[0005] Therefore, the present invention aims to improve feeding efficiency, simplify the process, reduce equipment costs, and reduce reliance on high-performance industrial robotic arms by designing a new thermomagnetic component whole-building material tray feeding wheel structure. Summary of the Invention

[0006] To address the shortcomings of the aforementioned technologies, this invention provides an automatic feeding machine for thermal-magnetic components of miniature circuit breakers. The technical solution of this invention is as follows: An automatic feeding machine for thermal-magnetic components of miniature circuit breakers, comprising several material trays, a frame, a detection mechanism, a tray servo lifting mechanism, a single tray disengagement and positioning mechanism, a tray servo moving mechanism, a product clamping servo mechanism, and a PLC controller; the several material trays overlap to form a complete material tray assembly.

[0007] The frame is equipped with connecting rails, and tray feeding buffer rails and tray discharging buffer rails located at both ends of the connecting rails. The connecting rails are respectively provided with lifting channels at both ends that are adapted to the outline of the entire tray, and are connected to the tray feeding buffer rails and tray discharging buffer rails through the lifting channels. The tray feeding buffer rails and tray discharging buffer rails include an inlet end and an outlet end. The outlet end of the tray feeding buffer rail and the inlet end of the tray discharging buffer rail are connected to the lifting channels. The tray feeding buffer rails and tray discharging buffer rails are both covered with tray conveyor belts, which transport the trays from the inlet end to the outlet end.

[0008] Each of the lifting channels is equipped with a lifting platform, a limiting plate, and a tray servo lifting mechanism. The limiting plate includes an intercepting plate facing the tray conveyor belt and a pair of wing plates located on both sides of the tray conveyor belt. The spacing between the pair of wing plates is adapted to the width of the tray. The lifting platform is equipped with a lifting arm extending to the bottom of the tray. The tray servo lifting mechanism drives the lifting platform to lift the entire tray.

[0009] The connecting track is equipped with a sliding platform. The sliding platform has a through groove in the vertical direction that matches the contour of the material tray. The tray servo moving mechanism drives the sliding platform to reciprocate between the two lifting channels. The single tray disengagement and positioning mechanism is set on the sliding platform and includes several clamping blocks and a driving cylinder. The clamping blocks are set on both sides of the through groove for sliding engagement. The driving cylinder drives the clamping blocks to move in and out of the through groove to clamp a material tray at the top of the entire material tray system.

[0010] The frame is equipped with a clamping track, a thermomagnetic component claw, a claw lifting platform, and a claw moving platform that reciprocates and slides on the clamping track directly above the lifting channel at the tray feeding buffer track. The claw lifting platform and the claw moving platform slide vertically and are fixedly connected to the thermomagnetic component claw. The product clamping servo mechanism drives the claw moving platform to reciprocate along the clamping track and drives the claw lifting platform to reciprocate and lift.

[0011] The PLC controller is connected to the disk servo lifting mechanism, the single disk disengagement and positioning mechanism, the disk servo moving mechanism, and the product clamping servo mechanism for signal control and linkage.

[0012] The above technical solution utilizes a PLC controller to control and link the tray servo lifting mechanism, single tray disengagement and positioning mechanism, tray servo moving mechanism, and product clamping servo mechanism. This allows the tray servo lifting mechanism to move in units equal to the height of a single tray. When lifting the entire tray from the lifting channel to the connecting track, the top tray of the entire tray is first placed into the through slot of the moving table. Through the detection feedback of the tray position by the detection mechanism and the control of the lifting unit distance, the clamping block is precisely controlled to clamp the top tray.

[0013] Then the servo lifting mechanism descends, a single tray is clamped by the clamping block, and the remaining trays are disengaged so that the servo moving mechanism can carry the trays along the connecting track.

[0014] Because the connecting track and the clamping track are parallel, the thermomagnetic gripper only needs to slide and rise along the clamping track to grip the product in the tray. The tray servo moving mechanism drives the tray to control the step distance according to the size of the grid on the tray where the thermomagnetic components are placed, and gradually feeds the thermomagnetic components in each row of grids to the area where the thermomagnetic gripper stops. The two work alternately, so that the thermomagnetic components can be gripped at a relatively fixed coordinate. This allows for the use of a simple product gripping servo mechanism without the need for a high-precision multi-axis linkage industrial robotic arm, which greatly saves equipment costs.

[0015] Meanwhile, through structural improvements to the tray feeding buffer track and the tray discharging buffer track, the tray rotation time is shortened. When the thermomagnetic components of the last row of trays are clamped out under the stepping of the tray moving servo mechanism, the tray arrives at the tray discharging buffer track. The tray servo lifting mechanism of the tray discharging buffer track rises to catch the empty tray and is linked with the single tray disengagement positioning mechanism. The clamping block is released in coordination, and the empty tray is lowered. The empty trays are stacked into a pile, and the detection mechanism detects that the height is in place. The entire pile of empty trays is then transported out.

[0016] The testing institutions are commonly used components in automated equipment such as position sensors and photoelectric sensors, which will not be repeated here.

[0017] Further features of the present invention: The feeding machine also includes a feeding conveyor belt, a progressive track, a discharging conveyor belt, and a pushing mechanism. The progressive track is parallel to the clamping track, and its ends are perpendicularly connected to the feeding conveyor belt and the discharging conveyor belt, respectively. At the connection between the feeding conveyor belt and the progressive track, a pushing mechanism is provided to push the plastic shell on the feeding conveyor belt into the progressive track. At the connection between the discharging conveyor belt and the progressive track, a pushing mechanism is provided to push the plastic shell on the progressive track into the discharging conveyor belt. The progressive track is provided with a groove that matches the contour of the plastic shell.

[0018] The thermomagnetic component grippers pick up the thermomagnetic component on the material tray and place it inside the plastic shell on the advancing track along the clamping track.

[0019] By employing the above technical solution, through the setup of an infeed conveyor belt, a progressive track, an outfeed conveyor belt, and a pushing mechanism, the circuit breaker molded cases stop at the perpendicular intersection of the conveyor belt and the progressive track, and are then pushed one by one into the progressive track, where they are intercepted and stopped at the perpendicular intersection at the end of the track. In this way, the coordinates of each molded case, closely arranged end-to-end on the progressive track, can be calculated from the end of the track as the starting point, using one molded case size as the unit, to obtain the coordinates of each subsequent molded case. This allows for the installation of multiple sets of thermomagnetic component grippers, spaced at molded case sizes, with the spacing of the material compartments corresponding to the molded case sizes. Multiple thermomagnetic components can be picked up from the material tray at once and installed onto multiple molded cases in the progressive track, thus significantly improving equipment efficiency.

[0020] After the thermomagnetic component is installed in the front plastic shell, it is pushed into the discharge conveyor belt, and subsequent plastic shells are added in succession.

[0021] A further feature of the present invention is that the material tray has a directional feature, and the detection mechanism detects the direction of the material tray.

[0022] By adopting the above technical solution, even if the orientation of the material tray is detected, the failure to assemble due to the orientation of the thermomagnetic component can be avoided.

[0023] A further feature of the present invention is that the servo lifting mechanism of the tray includes a lifting platform, a ball screw, a guide rail, and a screw motor. The lifting platform is provided with a nut seat that cooperates with the ball screw. The lifting arm of the lifting platform extends to the four corners of the tray, and a slot is provided at each of the four corners. The screw motor drives the lifting platform to rise and fall along the ball screw.

[0024] A further feature of the present invention is that the pushing mechanism includes a pushing cylinder and a pushing block.

[0025] A further feature of the present invention is that the feeding machine also includes an AGV trolley, which transfers empty material trays from the tray discharge buffer track to the warehouse material distribution system, and transfers full material trays from the warehouse to the tray feeding buffer track.

[0026] A further feature of the present invention is that a material distribution blocking mechanism is provided at the tray feeding buffer track and the tray discharging buffer track. The mechanism includes a plurality of lifting blocks and lifting cylinders arranged at intervals along the track conveying direction. The lifting cylinders drive the lifting blocks to go beyond the tray feeding buffer track and the tray discharging buffer track, thereby blocking the entire tray from moving forward.

[0027] The beneficial effects of this invention are: the feeding machine of this invention realizes automated transportation and feeding, improves production efficiency, reduces intermediate transfer and storage links, facilitates large-scale production, can extract production data, realize data-driven and visualized quality management and production management, saves labor costs and is easy to operate. Attached Figure Description

[0028] Figure 1 The structure of this embodiment of the invention Figure 1 ;

[0029] Figure 2 The structure of this embodiment of the invention Figure 2 ;

[0030] Figure 3 The structure of this embodiment of the invention Figure 3 ;

[0031] Figure 4 The structure of this embodiment of the invention Figure 4 ;

[0032] Figure 5 The structure of this embodiment of the invention Figure 5 ;

[0033] Figure 6 The structure of this embodiment of the invention Figure 6 ;

[0034] Figure 7 The structure of this embodiment of the invention Figure 7 .

[0035] Among them, 11-material tray, 12-frame, 13-detection mechanism, 14-connecting rail, 15-tray feeding buffer rail, 16-tray discharging buffer rail, 17-lifting channel, 2-tray servo lifting mechanism, 21-lifting platform, 22-interceptor plate, 23-lifting arm, 24-ball screw, 25-guide rail, 26-screw motor, 3-single tray disengagement positioning mechanism, 31-clamping block, 32-drive cylinder, 4-tray servo moving mechanism, 41-moving head, 411-through groove, 5-product gripping servo mechanism, 51-clamping rail, 52-thermomagnetic component claw, 53-claw lifting platform, 54-claw moving platform. Detailed Implementation

[0036] like Figure 1-7 As shown, clamping block 31 enters and exits through groove 411 to clamp the top of the entire material tray 11;

[0037] The frame 12 is provided with a clamping track 51, a thermomagnetic component claw 52, ​​a claw lifting platform 53, and a claw moving platform 54 that reciprocates and slides on the clamping track 51 directly above the lifting channel 17 at the tray feeding buffer track 15. The claw lifting platform 53 and the claw moving platform 54 are vertically slidably engaged and fixedly connected to the thermomagnetic component claw 52. The product clamping servo mechanism 5 drives the claw moving platform 54 to reciprocate along the clamping track 51 and drives the claw lifting platform 21 to reciprocate and lift.

[0038] The PLC controller is connected to the disk servo lifting mechanism 2, the single disk disengagement and positioning mechanism 3, the disk servo moving mechanism 4, and the product clamping servo mechanism 5 for signal control and linkage.

[0039] The PLC controller controls the linkage of the tray servo lifting mechanism 2, the single tray disengagement and positioning mechanism 3, the tray servo moving mechanism 4, and the product clamping servo mechanism 5. This allows the tray servo lifting mechanism 2 to move in units of the height of one tray 11. When lifting the entire tray 11 from the lifting channel 17 to the connecting track 14, the top tray 11 is first placed into the through slot 411 of the moving table 41. Through the detection feedback of the tray 11 position by the detection mechanism 13 and the control of the lifting and moving unit distance, the clamping block 31 is precisely controlled to clamp the top tray 11.

[0040] Then the disc servo lifting mechanism 2 descends, a single disc 11 is clamped by the clamping block 31, and the remaining discs 11 are disengaged so that the disc servo moving mechanism 4 can carry the discs 11 along the connecting track 14.

[0041] Because the connecting track 14 is parallel to the clamping track 51, through the linkage between the disk servo moving mechanism 4 and the product clamping mechanism, the thermomagnetic gripper only needs to slide and rise along the clamping track 51 to clamp the product in the material tray 11. The disk servo moving mechanism 4 drives the material tray 11 to control the step distance according to the size of the grid on the material tray 11 where the thermomagnetic components are placed, and gradually sends the thermomagnetic components in each row of grids to the area below where the thermomagnetic gripper stops. The two work alternately, so that the thermomagnetic components can be clamped at a relatively fixed coordinate. This allows the use of a simple product clamping servo mechanism 5 without the need for a high-precision multi-axis linkage industrial robotic arm, which greatly saves equipment costs.

[0042] Meanwhile, through structural improvements to the tray feeding buffer track 15 and the tray discharging buffer track 16, the rotation time of the tray 11 is shortened. When the thermomagnetic components of the last row of material compartments are clamped out under the stepping of the tray moving servo mechanism, the tray 11 arrives at the tray discharging buffer track. The tray servo lifting mechanism 2 of the tray discharging buffer track rises and catches the empty tray 11. It is linked with the single tray disengagement positioning mechanism 3, and the clamping block 31 is released to lower the empty tray 11. The empty trays 11 are stacked into a pile. The detection mechanism 13 detects that the height is in place, and the entire pile of empty trays 11 is transported out.

[0043] Testing agency 13 consists of commonly used components in automated equipment such as position sensors and photoelectric sensors, which will not be repeated here.

[0044] The feeding machine also includes a feeding conveyor belt, a progressive track, a discharging conveyor belt, and a pushing mechanism. The progressive track is parallel to the clamping track 51, and its ends are perpendicularly connected to the feeding conveyor belt and the discharging conveyor belt, respectively. At the connection between the feeding conveyor belt and the progressive track, there is a pushing mechanism for pushing the plastic shell on the feeding conveyor belt into the progressive track. At the connection between the discharging conveyor belt and the progressive track, there is a pushing mechanism for pushing the plastic shell on the progressive track into the discharging conveyor belt. The progressive track is provided with a groove that matches the contour of the plastic shell.

[0045] The thermomagnetic component claw 52 grips the thermomagnetic component on the material tray 11 and places it into the plastic shell on the advancing track along the clamping track 51.

[0046] The circuit breaker molded cases are positioned at the perpendicular intersection of the conveyor belt and the progressive track by a feeding conveyor belt, a progressive track, a discharging conveyor belt, and a pushing mechanism. They are then pushed one by one into the progressive track and intercepted at the perpendicular intersection at the end of the track. The coordinates of each molded case, closely arranged end-to-end on the progressive track, can be calculated from the end of the track, using one case size as the unit, to obtain the coordinates of each subsequent case. Multiple sets of thermomagnetic component grippers 52 can be set up, spaced according to the case size, with the spacing of the material compartments relative to the case size. This allows for the simultaneous gripping of multiple thermomagnetic components from the material tray 11 and installation onto multiple cases in the progressive track, significantly improving equipment efficiency.

[0047] After the thermomagnetic component is installed in the front plastic shell, it is pushed into the discharge conveyor belt, and subsequent plastic shells are added in succession.

[0048] The material tray 11 is provided with directional features, and the detection mechanism 13 detects the direction of the material tray 11.

[0049] Even if the material tray is detected in direction 11, it can prevent assembly failures and downtime due to the orientation of the thermomagnetic component.

[0050] The servo lifting mechanism 2 of the tray includes a lifting platform 21, a ball screw 24, a guide rail 25 and a screw motor 26. The lifting platform 21 is provided with a nut seat that cooperates with the ball screw 24. The lifting arm 23 of the lifting platform 21 extends to the four corners of the tray 11, and a slot is provided at each of the four corners. The screw motor 26 drives the lifting platform 21 to rise and fall along the ball screw 24.

[0051] The pushing mechanism includes a pushing cylinder and a pushing block.

[0052] The feeding machine also includes an AGV trolley 6, which transfers empty material trays 11 from the tray discharge buffer track 16 to the warehouse material distribution system, and then transfers full material trays 11 from the warehouse to the tray feeding buffer track 15.

[0053] The tray feeding buffer track 15 and the tray discharging buffer track 16 are equipped with a material blocking mechanism. The mechanism includes a number of lifting blocks 151 and a lifting cylinder arranged at intervals along the conveying direction of the track. The lifting cylinder drives the lifting blocks 151 to go beyond the tray feeding buffer track 15 and the tray discharging buffer track 16 to block the entire tray 11 from moving forward.

[0054] The feeding machine of this invention realizes automated transportation and feeding, improves production efficiency, reduces intermediate transfer and storage links, facilitates large-scale production, can extract production data, realize data-driven and visualized quality management and production management, saves labor costs and is easy to operate.

[0055] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Various modifications made by those skilled in the art based on the technical solutions of the present invention without departing from the design concept of the present invention should fall within the scope of protection defined by the claims of the present invention.

Claims

1. An automatic feeding machine for thermal-magnetic components of miniature circuit breakers, characterized in that: The feeding machine includes several material trays, a frame, a detection mechanism, a tray servo lifting mechanism, a single tray disengagement and positioning mechanism, a tray servo moving mechanism, a product clamping servo mechanism, and a PLC controller. The several material trays overlap to form a whole material tray. The frame is equipped with connecting rails, and tray feeding buffer rails and tray discharging buffer rails located at both ends of the connecting rails. The connecting rails are respectively provided with lifting channels at both ends that are adapted to the outline of the entire tray, and are connected to the tray feeding buffer rails and tray discharging buffer rails through the lifting channels. The tray feeding buffer rails and tray discharging buffer rails include an inlet end and an outlet end. The outlet end of the tray feeding buffer rail and the inlet end of the tray discharging buffer rail are connected to the lifting channels. The tray feeding buffer rails and tray discharging buffer rails are both covered with tray conveyor belts, which transport the trays from the inlet end to the outlet end. Each of the lifting channels is equipped with a lifting platform, a limiting plate, and a tray servo lifting mechanism. The limiting plate includes an intercepting plate facing the tray conveyor belt and a pair of wing plates located on both sides of the tray conveyor belt. The spacing between the pair of wing plates is adapted to the width of the tray. The lifting platform is equipped with a lifting arm extending to the bottom of the tray. The tray servo lifting mechanism drives the lifting platform to lift the entire tray. The connecting track is equipped with a sliding platform. The sliding platform has a through groove in the vertical direction that matches the contour of the material tray. The tray servo moving mechanism drives the sliding platform to reciprocate between the two lifting channels. The single tray disengagement and positioning mechanism is set on the sliding platform and includes several clamping blocks and a driving cylinder. The clamping blocks are set on both sides of the through groove for sliding engagement. The driving cylinder drives the clamping blocks to move in and out of the through groove to clamp a material tray at the top of the entire material tray system. The frame is equipped with a clamping track, a thermomagnetic component claw, a claw lifting platform, and a claw moving platform that reciprocates and slides on the clamping track directly above the lifting channel at the tray feeding buffer track. The claw lifting platform and the claw moving platform slide vertically and are fixedly connected to the thermomagnetic component claw. The product clamping servo mechanism drives the claw moving platform to reciprocate along the clamping track and drives the claw lifting platform to reciprocate and lift. The PLC controller is connected to the disk servo lifting mechanism, the single disk disengagement and positioning mechanism, the disk servo moving mechanism, and the product clamping servo mechanism for signal control and linkage. The servo moving mechanism drives the material tray to control the stepping distance according to the size of the grid on which the thermomagnetic components are placed; As the thermomagnetic components of the last row of material compartments are clamped out by the stepping of the servo moving mechanism, the material tray arrives at the tray discharge buffer track.

2. The automatic feeding machine for thermal-magnetic components of a miniature circuit breaker according to claim 1, characterized in that: The feeding machine also includes a feeding conveyor belt, a progressive track, a discharging conveyor belt, and a pushing mechanism. The progressive track is parallel to the clamping track, and its ends are perpendicularly connected to the feeding conveyor belt and the discharging conveyor belt, respectively. At the connection between the feeding conveyor belt and the progressive track, there is a pushing mechanism for pushing the plastic shell on the feeding conveyor belt into the progressive track. At the connection between the discharging conveyor belt and the progressive track, there is a pushing mechanism for pushing the plastic shell on the progressive track into the discharging conveyor belt. The progressive track is provided with a groove that matches the contour of the plastic shell. The thermomagnetic component grippers pick up the thermomagnetic component on the material tray and place it inside the plastic shell on the advancing track along the clamping track.

3. The automatic feeding machine for thermal-magnetic components of a miniature circuit breaker according to claim 2, characterized in that: The material tray has directional features, and the detection mechanism detects the orientation of the material tray.

4. The automatic feeding machine for thermal-magnetic components of a miniature circuit breaker according to claim 3, characterized in that: The servo lifting mechanism of the tray includes a lifting platform, a ball screw, a guide rail and a screw motor. The lifting platform is provided with a nut seat that cooperates with the ball screw. The lifting arm of the lifting platform extends to the four corners of the tray, and a slot is provided at each of the four corners. The screw motor drives the lifting platform to rise and fall along the ball screw.

5. The automatic feeding machine for thermal-magnetic components of a miniature circuit breaker according to claim 4, characterized in that: The pushing mechanism includes a pushing cylinder and a pushing block.

6. An automatic feeding machine for thermal-magnetic components of miniature circuit breakers according to any one of claims 1-5, characterized in that: The feeding machine also includes an AGV trolley, which transfers empty material trays from the tray discharge buffer track to the warehouse material distribution system, and then transfers full material trays from the warehouse to the tray feeding buffer track.

7. An automatic feeding machine for thermal-magnetic components of miniature circuit breakers according to any one of claims 6, characterized in that: The tray feeding buffer track and the tray discharging buffer track are equipped with a material blocking mechanism. The mechanism includes a number of lifting blocks and lifting cylinders arranged at intervals along the conveying direction of the track. The lifting cylinders drive the lifting blocks to go beyond the tray feeding buffer track and the tray discharging buffer track, blocking the entire tray from moving forward.

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