Pin assembling device and material distributing mechanism

Abstract

The utility model belongs to the technical field of production of low-voltage electric appliances, and particularly discloses a pin assembling device and a material distributing mechanism. The conveying line is used for conveying the low-voltage electrical appliances to the position of the feeding mechanism, the feeding mechanism pushes the low-voltage electrical appliances on the conveying line to the pin assembling position, the pin assembling mechanism assembles pins to the low-voltage electrical appliances arranged at the pin assembling position, the material moving mechanism pushes the low-voltage electrical appliances assembled with the pins to the pin detecting position to be detected, and after detection is completed, the low-voltage electrical appliances are conveyed to the feeding mechanism. The material pushing mechanism pushes the detected low-voltage electric appliance to a conveying line, the feeding mechanism, the pin assembling mechanism, the material moving mechanism and the material pushing mechanism are matched with one another in the operation process, multiple mechanisms can act at the same time, and high-efficiency assembling of pins is achieved. In addition, manual operation is replaced by automatic pin assembling, the labor cost is reduced, the problem of neglected assembling is avoided, and the qualified rate of products is increased.

Description

A pin assembly device and a material distribution mechanism Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliance manufacturing technology, and in particular to a pin assembly device and a material distribution mechanism. Background Technology

[0002] Low-voltage electrical appliances such as circuit breakers require pins to be pressed into certain critical locations to ensure the fit clearance between the upper and lower covers. Currently, the assembly of pins on low-voltage electrical appliances is mainly done manually. The drawbacks of manual assembly are its low level of automation and unnecessary labor costs. Furthermore, manual assembly is inefficient and prone to omissions, which not only reduces the assembly speed of low-voltage electrical appliance pins but also lowers the product qualification rate. Summary of the Invention

[0003] The purpose of this invention is to provide a pin assembly device that replaces manual pin assembly, improves pin assembly speed, effectively solves the problem of missing pins, and thus improves product qualification rate.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A pin assembly device includes a conveyor line, a feeding mechanism on one side of the conveyor line, a pin assembly platform on the other side of the conveyor line, the pin assembly platform having a pin assembly position and a pin detection position, a pin assembly mechanism above the pin assembly position, and a material transfer mechanism and a material pusher mechanism on the side of the pin assembly platform away from the conveyor line.

[0006] The material transfer mechanism is used to move between the pin assembly position and the pin detection position, and when moving towards the pin detection position, it pushes the low-voltage electrical appliance with the pin assembled at the pin assembly position to the pin detection position.

[0007] While the low-voltage electrical appliance is being detected at the pin detection position, the material transfer mechanism moves from the pin detection position to the pin assembly position, and the feeding mechanism pushes the low-voltage electrical appliance on the conveyor line to the pin assembly position. The pushing mechanism pushes the low-voltage electrical appliance that has been detected at the pin detection position to the conveyor line.

[0008] The pin assembly mechanism is used to assemble a pin into a low-voltage electrical appliance placed at the pin assembly position, while the pusher mechanism moves to its initial position.

[0009] As an optional technical solution for the aforementioned pin assembly device, the material transfer mechanism includes a first material transfer drive unit, a second material transfer drive unit, and a toggle member. The first material transfer drive unit and the second material transfer drive unit are both disposed on the side of the pin assembly platform away from the conveyor line, and the toggle member is disposed above the pin assembly platform.

[0010] The first material transfer drive unit is used to drive the second material transfer drive unit to move from the pin detection position to the pin assembly position. The second material transfer drive unit is used to drive the actuating member to extend along the first direction, so that the actuating member is located on the side of the pin assembly position away from the pin detection position. Alternatively, the first material transfer drive unit is used to drive the second material transfer drive unit to move from the pin assembly position to the pin detection position, so that the actuating member drives the low-voltage electrical appliance at the pin assembly position to move to the pin detection position.

[0011] While the low-voltage electrical appliance is detected at the pin detection position, the second material transfer drive unit placed at the pin detection position drives the actuating member to retract along the first direction. The first material transfer drive unit drives the second material transfer drive unit to move from the pin detection position to the pin assembly position. At the same time as the pushing mechanism moves to the initial position, the second material transfer drive unit placed at the pin assembly position drives the actuating member to extend along the first direction.

[0012] As an optional technical solution for the aforementioned pin assembly device, the first material transfer drive unit includes a first material transfer drive cylinder, the second material transfer drive unit includes a second material transfer drive cylinder, the movable end of the first material transfer drive cylinder is connected to a material transfer slider, the material transfer slider is slidably connected to the pin assembly platform, the second material transfer drive cylinder is fixed on the material transfer slider, and the movable end of the second material transfer drive cylinder is connected to the actuating element.

[0013] As an optional technical solution for the aforementioned pin assembly device, the pin assembly device further includes a positioning mechanism. The positioning mechanism includes a positioning block and a positioning drive. While the pushing mechanism moves to its initial position, the positioning drive drives the positioning block to move, placing the positioning block on one side of the pin detection position. When the transferring mechanism pushes the low-voltage electrical appliance at the pin assembly position to the pin detection position, the recess on the top surface of the low-voltage electrical appliance abuts against the positioning block in the pushing direction. While the low-voltage electrical appliance is detected at the pin detection position, the positioning drive drives the positioning block to move away from the pin detection position, so that the pushing mechanism can push the low-voltage electrical appliance to the conveyor line.

[0014] As an optional technical solution for the aforementioned pin assembly device, the pin assembly mechanism includes a pin conveying unit, a pin mounting unit, and an intermediate transmission unit. The pin conveying unit and the pin mounting unit are disposed above the pin assembly platform, and the pin mounting unit is correspondingly disposed with respect to the pin assembly position. The intermediate transmission unit is used to receive the pins conveyed by the pin conveying unit and convey the pins to the area below the pin mounting unit. The pin mounting unit is used to install the pins conveyed by the intermediate transmission unit onto the low-voltage electrical appliance located at the pin assembly position.

[0015] As an optional technical solution for the above-mentioned pin assembly device, the pin assembly platform includes a first mounting plate and a second mounting plate. The first mounting plate and the second mounting plate are parallel and spaced apart. The pin assembly position and the pin detection position are formed between the first mounting plate and the second mounting plate. A third mounting plate is parallel and spaced apart on the side of the second mounting plate away from the first mounting plate.

[0016] The intermediate transmission unit includes a turntable and a turntable driver. The turntable is disposed between the second mounting plate and the third mounting plate, and the turntable is in contact with the second mounting plate. The turntable driver is disposed on the third mounting plate. The turntable has a pin bearing hole. The second mounting plate has a pin mounting hole at a position corresponding to the pin mounting unit. The turntable driver is used to drive the turntable to rotate, so that the pin bearing hole receives the pin conveyed by the pin conveying unit, or aligns the pin bearing hole with the pin mounting hole. The pin in the pin bearing hole passes through the pin mounting hole and falls onto the low-voltage electrical appliance placed at the pin assembly position. The pin mounting unit is used to install the pin that falls onto the low-voltage electrical appliance through the pin bearing hole and the pin mounting hole.

[0017] As an optional technical solution for the aforementioned pin assembly device, the turntable is provided with at least two pin bearing holes, and the at least two pin bearing holes are symmetrically arranged with respect to the axis of the turntable.

[0018] And / or, the thickness of the turntable is less than the length of the pin.

[0019] As an optional technical solution for the assembly device of the aforementioned pins, a fourth mounting plate is provided parallel to and spaced apart from the side of the third mounting plate opposite to the second mounting plate, and the turntable drive is disposed between the third mounting plate and the fourth mounting plate.

[0020] The pin mounting unit includes a pin driver and an assembly pin. The pin driver is disposed on the side of the fourth mounting plate opposite to the third mounting plate. The driving end of the pin driver passes through the fourth mounting plate and is connected to one end of the assembly pin. The other end of the assembly pin passes through the third mounting plate and is positioned above the turntable. The pin driver is used to drive the assembly pin through the pin bearing hole and the pin mounting hole.

[0021] As an optional technical solution for the aforementioned pin assembly device, the pin assembly device further includes a material distribution mechanism. Along the conveying direction of the conveyor line, the material distribution mechanism is located upstream of the feeding mechanism. The material distribution mechanism is used to convey the low-voltage electrical appliances on the conveyor line one by one to the feeding mechanism.

[0022] As an optional technical solution for the aforementioned pin assembly device, the material distribution mechanism includes a stop plate and a stop unit. The stop plate is fixedly disposed on one side of the conveyor line, and the stop unit is disposed on the other side of the conveyor line. The stop unit includes a first stop assembly and a second stop assembly. The first stop assembly is used to cause a first low-voltage electrical appliance on the conveyor line near the feeding mechanism to abut against the stop plate, and the second stop assembly is used to cause a second low-voltage electrical appliance on the conveyor line near the feeding mechanism to abut against the stop plate.

[0023] As an optional technical solution for the aforementioned pin assembly device, both the first stop assembly and the second stop assembly include a stop drive and a stop block. The stop drive is used to drive the stop block to abut against a low-voltage electrical appliance on the conveyor line, and the surface of the stop block that contacts the low-voltage electrical appliance is an inclined surface. The distance between the inclined surface and the stop plate decreases along the conveying direction of the conveyor line.

[0024] As an optional technical solution for the aforementioned pin assembly device, a product detection component is provided above the position of the first low-voltage electrical appliance near the feeding mechanism on the conveyor line. The product detection component is used to detect whether there is a low-voltage electrical appliance on the conveyor line.

[0025] The purpose of this utility model is to provide a material distribution mechanism that, when blocking low-voltage electrical appliances, will not directly impact the low-voltage electrical appliances, thus protecting them from damage.

[0026] To achieve this objective, the present invention adopts the following technical solution:

[0027] A material distribution mechanism includes a conveyor line, a stop plate, and a stop unit. The stop plate is fixedly disposed on one side of the conveyor line, and the stop unit is disposed on the other side of the conveyor line. The stop unit includes a first stop assembly and a second stop assembly. Both the first stop assembly and the second stop assembly include a stop drive and a stop block. The stop drive of the first stop assembly drives the stop block, causing a first low-voltage electrical appliance on the conveyor line along the conveyor line's conveying direction to abut against the stop plate. The stop drive of the second stop assembly drives the stop block, causing a second low-voltage electrical appliance adjacent to the first low-voltage electrical appliance on the conveyor line to abut against the stop plate. The surface of the stop block that contacts the low-voltage electrical appliance is an inclined surface, and the distance between the inclined surface and the stop plate decreases along the conveying direction of the conveyor line.

[0028] The beneficial effects of this utility model are:

[0029] The pin assembly device provided by this utility model includes a conveyor line for transporting low-voltage electrical appliances to the feeding mechanism. The feeding mechanism pushes the low-voltage electrical appliances on the conveyor line to the pin assembly position. The pin assembly mechanism assembles the pins into the low-voltage electrical appliances placed in the pin assembly position. The transfer mechanism pushes the low-voltage electrical appliances with assembled pins to the pin detection position for detection. After detection, the pusher mechanism pushes the detected low-voltage electrical appliances back to the conveyor line. The feeding mechanism, pin assembly mechanism, transfer mechanism, and pusher mechanism cooperate with each other during operation, with multiple mechanisms operating simultaneously, achieving high-efficiency pin assembly. In addition, automatic pin assembly replaces manual operation, reducing labor costs, avoiding missed assembly problems, and improving the product qualification rate.

[0030] The material distribution mechanism provided by this utility model has a sloped surface on the surface of the stop block that contacts the low-voltage electrical appliance. The distance between the sloped surface and the stop plate decreases along the conveying direction of the conveyor line. The stop drive of the first stop assembly drives the stop block, causing the first low-voltage electrical appliance on the conveyor line to abut against the stop plate, preventing it from moving along the conveying direction. The stop drive of the second stop assembly drives the stop block, causing the second low-voltage electrical appliance on the conveyor line to abut against the stop plate. When the second stop assembly presses against the second low-voltage electrical appliance and the first stop assembly no longer presses against it, the first low-voltage electrical appliance can move along the conveying direction, thus enabling automatic feeding of the low-voltage electrical appliances. The sloped surface of the stop block cooperates with the stop plate to block the low-voltage electrical appliances, rather than directly applying pressure to them. This material distribution mechanism will not cause impact to the low-voltage electrical appliances, protecting them from damage. Attached Figure Description

[0031] Figure 1 is a schematic diagram of the overall structure of the pin assembly device provided in an embodiment of the present invention;

[0032] Figure 2 is a schematic diagram of the internal structure of the pin assembly device provided in an embodiment of the present invention;

[0033] Figure 3 is a partial structural schematic diagram of the pin assembly device provided in an embodiment of the present utility model;

[0034] Figure 4 is an exploded structural diagram of the pin assembly platform, pin assembly mechanism, material transfer mechanism and material pushing mechanism provided in the embodiment of this utility model;

[0035] Figure 5 is a structural schematic diagram of the feeding mechanism, pin assembly platform and pin assembly mechanism provided in the embodiment of this utility model;

[0036] Figure 6 is a first axonometric view of the feeding mechanism, pin assembly platform, material transfer mechanism and material pushing mechanism provided in the embodiment of this utility model;

[0037] Figure 7 is a second axonometric view of the feeding mechanism, pin assembly platform, material transfer mechanism and material pushing mechanism provided in the embodiment of this utility model;

[0038] Figure 8 is an isometric view of the feeding mechanism, pin assembly platform, pin assembly mechanism, material transfer mechanism and material pushing mechanism provided in the embodiment of this utility model;

[0039] Figure 9 is a third axonometric view of the feeding mechanism, pin assembly platform, material transfer mechanism, and material pushing mechanism provided in the embodiment of this utility model;

[0040] Figure 10 is a schematic diagram of the structure of the turntable provided in an embodiment of this utility model.

[0041] In the picture:

[0042] 100. Low-voltage electrical appliances;

[0043] 1. Conveyor line; 2. Feeding mechanism; 3. Pin assembly platform; 4. Pin assembly mechanism; 5. Transfer mechanism; 6. Pushing mechanism; 7. Positioning mechanism; 8. Dividing mechanism; 9. Pin inspection component;

[0044] 21. Feeding drive component; 22. Feeding drive block; 23. Material detection component;

[0045] 31. First mounting plate; 32. Second mounting plate; 33. Third mounting plate; 34. Fourth mounting plate; 35. First blocking block; 36. Second blocking block; 37. Third blocking block;

[0046] 41. Pin conveying unit; 411. Vibratory feeder; 412. Pin conveying pipe; 413. Conveying pipe fixing sleeve; 42. Pin mounting unit; 421. Pin drive component; 422. Assembly pin; 423. Guide sleeve; 43. Intermediate transmission unit; 431. Turntable; 432. Turntable drive component; 433. Pin bearing hole; 434. Weight reduction hole;

[0047] 51. First material transfer drive unit; 511. First material transfer drive cylinder; 512. Material transfer slider; 52. Second material transfer drive unit; 53. Actuating component;

[0048] 61. Pusher drive component; 62. Pusher block;

[0049] 71. Positioning block; 72. Positioning drive component;

[0050] 81. Stop plate; 82. Stop unit; 821. First stop assembly; 8211. Stop drive component; 8212. Stop block; 82121. Inclined surface; 822. Second stop assembly; 83. Product inspection component; 84. Bracket. Detailed Implementation

[0051] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0052] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0055] As shown in Figures 1 to 3, this embodiment provides a pin assembly device. The assembly device includes a conveyor line 1, a feeding mechanism 2 on one side of the conveyor line 1, and a pin assembly platform 3 on the other side of the conveyor line 1. The pin assembly platform 3 has a pin assembly position and a pin detection position. A pin assembly mechanism 4 is provided above the pin assembly position. A material transfer mechanism 5 and a material pusher mechanism 6 are provided on the side of the pin assembly platform 3 away from the conveyor line 1. The material transfer mechanism 5 is used to move between the pin assembly position and the pin detection position. When moving to the pin detection position, it pushes the low-voltage electrical appliance 100 with the pin assembled at the pin assembly position to the pin detection position. While the low-voltage electrical appliance 100 is being detected at the pin detection position, the material transfer mechanism 5 moves from the pin detection position to the pin assembly position. The material feeding mechanism 2 is used to push the low-voltage electrical appliance 100 on the conveyor line 1 to the pin assembly position. The material pushing mechanism 6 is used to push the low-voltage electrical appliance 100 with the pin detected at the pin detection position to the conveyor line 1. The pin assembly mechanism 4 is used to assemble the pin on the low-voltage electrical appliance 100 placed at the pin assembly position. At the same time, the material pushing mechanism 6 moves to the initial position.

[0056] Conveyor line 1 transports low-voltage electrical appliances 100 to the feeding mechanism 2. The feeding mechanism 2 pushes the low-voltage electrical appliances 100 on conveyor line 1 to the pin assembly position. The pin assembly mechanism 4 assembles pins into the low-voltage electrical appliances 100 placed in the pin assembly position. The transfer mechanism 5 pushes the low-voltage electrical appliances 100 with assembled pins to the pin detection position for detection. After detection, the pusher mechanism 6 pushes the detected low-voltage electrical appliances 100 back to conveyor line 1. The feeding mechanism 2, pin assembly mechanism 4, transfer mechanism 5, and pusher mechanism 6 cooperate with each other during operation, with multiple mechanisms operating simultaneously, achieving high-efficiency pin assembly. In addition, automatic pin assembly replaces manual operation, reducing labor costs, avoiding missed assembly, and improving the product qualification rate.

[0057] In some embodiments, as shown in Figures 4 and 5, the pin assembly platform 3 includes a first mounting plate 31 and a second mounting plate 32. The first mounting plate 31 and the second mounting plate 32 are parallel and spaced apart, forming a pin assembly position and a pin detection position between them. The feeding mechanism 2 pushes the low-voltage electrical appliance 100 on the conveyor line 1 into the space between the first mounting plate 31 and the second mounting plate 32. The pin assembly position and the pin detection position are spaced apart along a second direction. Therefore, in the second direction, both ends of the first mounting plate 31 are connected to the second mounting plate 32 through first blocking blocks 35. The height of the first blocking blocks 35 is the same as the distance between the first mounting plate 31 and the second mounting plate 32. The two first blocking blocks 35 also serve to limit the low-voltage electrical appliance 100 in the second direction, preventing the low-voltage electrical appliance 100 from detaching from the first mounting plate 31 when the material transfer mechanism 5 pushes the low-voltage electrical appliance 100, which has completed pin assembly at the pin assembly position, to the pin detection position.

[0058] A second blocking block 36 and a third blocking block 37 are provided on the side of the second mounting plate 32 facing the first mounting plate 31. The second blocking block 36 extends along the second direction, with one end extending to the first blocking block 35 near the pin detection position. One end of the third blocking block 37 is connected to the other end of the second blocking block 36, and the other end of the third blocking block 37 extends along the second direction. The third blocking block 37 is positioned on the side of the pin assembly position away from the pin detection position. When the feeding mechanism 2 pushes the low-voltage electrical appliance 100 on the conveyor line 1 to the pin assembly position, the third blocking block 37 and the second blocking block 36 limit the low-voltage electrical appliance 100 in the first and second directions, respectively, to ensure that the transfer mechanism 5 can accurately push the low-voltage electrical appliance 100 to the pin detection position. In order not to hinder the operation of the material transfer mechanism 5 and the material pusher 6, the second blocking block 36 and the third blocking block 37 are spaced apart from the first mounting plate 31 so that the material transfer mechanism 5 and the material pusher 6 can pass through. At the same time, the height of the second blocking block 36 and the third blocking block 37 can also serve to block the low-voltage electrical appliance 100.

[0059] In some embodiments, as shown in Figures 6 and 7, the pin assembly device further includes a positioning mechanism 7. The positioning mechanism 7 includes a positioning block 71 and a positioning drive 72. While the pushing mechanism 6 moves to the initial position, the positioning drive 72 drives the positioning block 71 to move, so that the positioning block 71 is placed on one side of the pin detection position. When the transfer mechanism 5 pushes the low-voltage electrical appliance 100 at the pin assembly position to the pin detection position, the concave part of the top surface of the low-voltage electrical appliance 100 abuts against the positioning block 71 in the direction of being pushed, that is, the positioning block 71 is placed between the low-voltage electrical appliance 100 and the conveyor line 1. While the low-voltage electrical appliance 100 is detected at the pin detection position, the positioning drive 72 drives the positioning block 71 to move away from the pin detection position, so that the pushing mechanism 6 can push the low-voltage electrical appliance 100 to the conveyor line 1. The positioning block 71 can limit the low-voltage electrical appliance 100 in the first and second directions. At the same time, the first blocking block 35 and the second blocking block 36 cooperate with the positioning block 71, and the bottom of the low-voltage electrical appliance 100 contacts the second blocking block 36 to accurately position the low-voltage electrical appliance 100 at the pin detection position, ensuring the accuracy of the detection of the low-voltage electrical appliance 100.

[0060] Optionally, the positioning drive 72 is located below the pin assembly platform 3. Specifically, the positioning drive 72 is located below the first mounting plate 31, without interfering with the installation of other components. The first mounting plate 31 has positioning holes. The positioning drive 72 drives the positioning block 71 to rise and pass through the positioning holes. The positioning block 71 is positioned higher than the first mounting plate 31 and can be placed in the recess on the top surface of the low-voltage electrical appliance 100, thereby achieving positioning of the low-voltage electrical appliance 100 in the first and second directions. The positioning drive 72 drives the positioning block 71 to descend, placing the positioning block 71 below the first mounting plate 31, or making the positioning block 71 flush with the surface of the first mounting plate 31, so that the pushing mechanism 6 can push the low-voltage electrical appliance 100 to the conveyor line 1.

[0061] Referring to Figure 5, a pin detection element 9 is provided at the pin detection position. The pin detection element 9 can be a photoelectric sensor. The pin detection element 9 is used to detect whether a pin is installed on the low-voltage electrical appliance 100. The pushing mechanism 6 pushes the qualified low-voltage electrical appliance 100 to the conveyor line 1. For unqualified low-voltage electrical appliances 100, they can be removed manually or by setting up a rejection device to remove the unqualified low-voltage electrical appliances 100.

[0062] In some embodiments, continuing to refer to Figures 6 and 7, the feeding mechanism 2 includes a feeding drive component 21 and a feeding drive block 22. The feeding drive component 21 is fixed to one side of the conveyor line 1, and the feeding drive block 22 is connected to the feeding drive component 21 and disposed above the conveyor line 1. The feeding drive component 21 drives the feeding drive block 22 to move along a first direction, so that the feeding drive block 22 drives the low-voltage electrical appliance 100 on the conveyor line 1 to the pin assembly position of the pin assembly platform 3. The feeding drive component 21 can be a cylinder, which has a simple structure and can stably drive the feeding drive block 22 to move along the first direction.

[0063] A material detection component 23 is provided at the position corresponding to the feeding mechanism 2 on the conveyor line 1. The material detection component 23 is used to detect whether there is a low-voltage electrical appliance 100 at that position. When there is a low-voltage electrical appliance 100 at that position, the feeding drive component 21 drives the feeding drive block 22 to push the low-voltage electrical appliance 100 onto the pin assembly platform 3.

[0064] In some embodiments, as shown in Figures 8 and 9, the material transfer mechanism 5 includes a first material transfer drive unit 51, a second material transfer drive unit 52, and a toggle member 53. Both the first and second material transfer drive units 51 and 52 are disposed on the side of the pin assembly platform 3 away from the conveyor line 1. The toggle member 53 is positioned above the pin assembly platform 3, specifically between the first mounting plate 31 and the second mounting plate 32. The first material transfer drive unit 51 drives the second material transfer drive unit 52 to move from the pin detection position to the pin assembly position. The second material transfer drive unit 52 drives the toggle member 53 to extend along a first direction, so that the toggle member 53 is located on the side of the pin assembly position away from the pin detection position. Alternatively, the first material transfer drive unit 51 drives the second material transfer drive unit 52 to move from the pin assembly position to the pin detection position, causing the toggle member 53 to drive the low-voltage electrical appliance 100 at the pin assembly position to move to the pin detection position. While the low-voltage electrical appliance 100 is being detected at the pin detection position, the second material transfer drive unit 52, located at the pin detection position, drives the actuating member 53 to retract along the first direction. Simultaneously, the first material transfer drive unit 51 drives the second material transfer drive unit 52 to move from the pin detection position to the pin assembly position. At the same time as the pushing mechanism 6 moves to its initial position, the second material transfer drive unit 52, located at the pin assembly position, drives the actuating member 53 to extend along the first direction. The simultaneous operation of multiple mechanisms within the same timeframe achieves highly efficient pin assembly.

[0065] Referring to Figures 6 to 9, when the pin assembly device is in operation, the first transfer drive unit 51 drives the second transfer drive unit 52 to move from the pin detection position to the pin assembly position. The second transfer drive unit 52 drives the actuating member 53 to extend along the first direction. The actuating member 53 is located on the side of the pin assembly position away from the pin detection position. The first transfer drive unit 51 drives the second transfer drive unit 52 to move from the pin assembly position to the pin detection position, pushing the low-voltage electrical appliance 100, whose pin has been assembled at the pin assembly position, to the pin detection position. After the low-voltage electrical appliance 100 is pushed to the pin detection position, the recess on the top surface of the low-voltage electrical appliance 100 abuts against the positioning block 71. At the same time that the low-voltage electrical appliance 100 is detected at the pin detection position, the positioning drive member 72 drives the positioning block 71 to move away from the pin detection position, the second transfer drive unit 52 drives the actuating member 53 to retract along the first direction, and the feeding mechanism 2 pushes the low-voltage electrical appliance 100 on the conveyor line 1 to the pin assembly position. The feeding mechanism 2 resets, and simultaneously the first transfer drive unit 51 drives the second transfer drive unit 52 to move from the pin detection position to the pin assembly position. The pushing mechanism 6 pushes the low-voltage electrical appliance 100 that has been detected at the pin detection position to the conveyor line 1. Then, the pin assembly mechanism 4 shown in Figure 2 assembles the pins into the low-voltage electrical appliance 100 placed at the pin assembly position. At the same time, the pushing mechanism 6 moves to the initial position, and the second transfer drive unit 52 drives the actuating member 53 to extend along the first direction. The actuating member 53 is once again located on the side of the pin assembly position away from the pin detection position. At the same time as the pushing mechanism 6 moves to the initial position, the positioning drive member 72 drives the positioning block 71 to move, so that the positioning block 71 is placed on one side of the pin detection position. This process is repeated cyclically.

[0066] Optionally, the first material transfer drive unit 51 includes a first material transfer drive cylinder 511, and the second material transfer drive unit 52 includes a second material transfer drive cylinder. The movable end of the first material transfer drive cylinder 511 is connected to a material transfer slider 512, which is slidably connected to the pin assembly platform 3. The second material transfer drive cylinder is fixed on the material transfer slider 512, and the movable end of the second material transfer drive cylinder is connected to an actuating element 53. This design is simple in structure and has low operating costs. In other embodiments, the first material transfer drive unit can be a lead screw and nut structure, and the second material transfer drive unit can be a linear motor; no specific limitations are imposed here.

[0067] In some embodiments, the feeding mechanism 6 includes a feeding drive 61 and a feeding block 62, wherein the feeding drive 61 drives the feeding block 62 to move along a first direction. The feeding drive 61 may be a cylinder or a linear motor, and is not specifically limited here.

[0068] In some embodiments, as shown in Figures 2, 3, and 4, the pin assembly mechanism 4 includes a pin conveying unit 41, a pin mounting unit 42, and an intermediate transmission unit 43. The pin conveying unit 41 and the pin mounting unit 42 are disposed above the pin assembly platform 3, and the pin mounting unit 42 is correspondingly disposed with the pin assembly position. The intermediate transmission unit 43 is used to receive the pins conveyed by the pin conveying unit 41 and convey the pins to the area below the pin mounting unit 42. The pin mounting unit 42 is used to install the pins conveyed by the intermediate transmission unit 43 onto the low-voltage electrical appliance 100 located at the pin assembly position. This achieves automated pin installation, replaces manual operation, avoids the problem of missing pins, and improves the product qualification rate.

[0069] A third mounting plate 33 is provided parallel to and spaced apart from the side of the second mounting plate 32 opposite to the first mounting plate 31. Optionally, the third mounting plate 33 is connected to the second mounting plate 32 via a positioning post. Optionally, the intermediate transmission unit 43 includes a turntable 431 and a turntable drive 432. The turntable 431 is disposed between the second mounting plate 32 and the third mounting plate 33, and the turntable 431 is in contact with the second mounting plate 32. The second mounting plate 32 and the third mounting plate 33 cooperate to limit the position of the turntable 431 in the third direction, preventing the turntable 431 from moving in the third direction. A turntable drive unit 432 is mounted on the third mounting plate 33. The turntable 431 has a pin-bearing hole 433. The second mounting plate 32 has pin-mounting holes at positions corresponding to the pin-mounting unit 42. The turntable drive unit 432 drives the turntable 431 to rotate, causing the pin-bearing hole 433 to receive the pins conveyed by the pin conveying unit 41, or aligning the pin-bearing hole 433 with the pin-mounting hole. The pins in the pin-bearing hole 433 pass through the pin-mounting hole and fall onto the low-voltage electrical appliance 100 located at the pin assembly position. The pin-mounting unit 42 passes through the pin-bearing hole 433 and the pin-mounting hole to install the pins that have fallen onto the low-voltage electrical appliance 100 onto the low-voltage electrical appliance 100. This intermediate transmission unit 43 has a simple structure and is easy to implement. The turntable drive unit 432 can be a rotary cylinder or a motor, and no specific limitation is made here.

[0070] The pin conveying unit 41 includes a vibratory feeder 411 and a pin conveying pipe 412. Pins are placed inside the vibratory feeder 411. The outlet of the vibratory feeder 411 is connected to one end of the pin conveying pipe 412. The other end of the pin conveying pipe 412 is correspondingly positioned with the pin bearing hole 433. Specifically, the other end of the pin conveying pipe 412 passes through…

[0071] The third mounting plate 33 is positioned above the turntable 431, and the distance between the end of the pin delivery tube 412 and the surface of the turntable 431 is less than the length of the pin. The third mounting plate 33 is provided with a delivery tube fixing sleeve 413. One end of the delivery tube fixing sleeve 413 passes through the third mounting plate 33 and is positioned above the turntable 431. The other end of the pin delivery tube 412 passes through the delivery tube fixing sleeve 413. The delivery tube fixing sleeve 413 serves to fix the pin delivery tube 412, ensuring that the pin can accurately fall into the pin bearing hole 433.

[0072] The vibratory plate 411 vibrates, causing the pins to arrange sequentially within the pin delivery tube 412. The pins at the other end of the pin delivery tube 412 fall into the pin receiving hole 433. During the rotation of the turntable 431, the pins in the receiving hole 433 can be separated. As the turntable 431 rotates and moves the receiving hole 433 towards the pin mounting hole, the turntable 431 blocks the other end of the pin delivery tube 412, and the second mounting plate 32 blocks the end of the receiving hole 433 facing the second mounting plate 32, until the receiving hole 433 aligns with the mounting hole. Only then can the pins in the receiving hole 433 pass through the mounting hole and fall onto the low-voltage electrical appliance 100 positioned at the pin assembly location. The turntable 431 structure achieves pin delivery without occupying space, improving the compactness of the pin assembly mechanism 4.

[0073] Alternatively, as shown in Figure 10, the turntable 431 is provided with at least two pin-bearing holes 433, and the at least two pin-bearing holes 433 are symmetrically arranged with respect to the axis of the turntable 431. When one of the two symmetrically arranged pin-bearing holes 433 carries a pin conveyed by the pin conveying unit 41, the other pin-bearing hole 433 is aligned with the pin mounting hole, that is, the pin conveying unit 41 and the pin mounting unit 42 can work simultaneously, improving production efficiency.

[0074] The thickness of the turntable 431 is less than the length of the pin, which facilitates the separation of the pin placed in the pin bearing hole 433 from the pin conveying unit 41.

[0075] The turntable 431 is also provided with weight reduction holes 434 to reduce the weight of the turntable 431, thereby reducing the driving load of the turntable drive component 432 and improving the stability of the turntable 431 rotation.

[0076] In some other embodiments, the intermediate transmission unit includes a receiving block and a receiving block drive. The receiving block drive drives the receiving block to move linearly between the pin conveying unit 41 and the pin mounting unit 42. The receiving block is provided with a pin receiving hole. The movement of the receiving block can position the pin receiving hole below the pin conveying unit 41 to receive the pin, or align the pin receiving hole with the pin mounting hole. The receiving block drive can be a cylinder or a linear motor, and is not specifically limited here.

[0077] Referring again to Figures 2, 3, and 4, a fourth mounting plate 34 is arranged parallel to and spaced apart from the side of the third mounting plate 33 opposite to the second mounting plate 32. A turntable drive 432 is positioned between the third mounting plate 33 and the fourth mounting plate 34. The fourth mounting plate 34 and the third mounting plate 33 can be connected by positioning pins. Optionally, the pin mounting unit 42 includes a pin drive 421 and an assembly pin 422. The pin drive 421 is positioned on the side of the fourth mounting plate 34 opposite to the third mounting plate 33. The driving end of the pin drive 421 passes through the fourth mounting plate 34 and is connected to one end of the assembly pin 422. The other end of the assembly pin 422 passes through the third mounting plate 33 and is positioned above the turntable 431. The pin drive 421 drives the assembly pin 422 through the pin bearing hole 433 and the pin mounting hole. An assembly pin is provided based on the characteristics of the pin and the mounting structure of the pin on the low-voltage electrical appliance 100. The pin drive 421 drives the assembly pin 422 to press the pin into the low-voltage electrical appliance 100.

[0078] Optionally, the third mounting plate 33 is provided with a guide sleeve 423. One end of the guide sleeve 423 passes through the third mounting plate 33 and extends toward the turntable 431. The assembly pin 422 passes through the guide sleeve 423. The guide sleeve 423 provides guidance for the movement of the assembly pin 422, ensuring that the assembly pin 422 can accurately pass through the pin bearing hole 433.

[0079] In some embodiments, as shown in FIG3, the pin assembly device further includes a material distribution mechanism 8. Along the conveying direction of the conveying line 1 (i.e., the second direction), the material distribution mechanism 8 is located upstream of the feeding mechanism 2. The material distribution mechanism 8 is used to convey the low-voltage electrical appliances 100 on the conveying line 1 one by one to the feeding mechanism 2, so as to realize the automatic feeding of the low-voltage electrical appliances 100.

[0080] Optionally, the material distribution mechanism 8 includes a stop plate 81 and a stop unit 82. The stop plate 81 is fixedly disposed on one side of the conveyor line 1, and the stop unit 82 is disposed on the other side of the conveyor line 1. The stop unit 82 includes a first stop assembly 821 and a second stop assembly 822. Along the conveying direction of the conveyor line 1, the first stop assembly 821 is used to make the first low-voltage electrical appliance 100 on the conveyor line 1 abut against the stop plate 81. The first low-voltage electrical appliance 100 is the low-voltage electrical appliance 100 on the conveyor line 1 that is close to the feeding mechanism 2. The second stop assembly 822 is used to make the second low-voltage electrical appliance 100 on the conveyor line 1 abut against the stop plate 81. The second low-voltage electrical appliance 100 is the low-voltage electrical appliance 100 adjacent to the first low-voltage electrical appliance 100. When the first low-voltage electrical appliance 100 is conveyed along the conveying direction of conveyor line 1, the second stop assembly 822 presses against the second low-voltage electrical appliance 100, and the first stop assembly 821 no longer presses against the first low-voltage electrical appliance 100, thus separating the first and second low-voltage electrical appliances 100. When it is not necessary to convey the first low-voltage electrical appliance 100, the first stop assembly 821 presses against the first low-voltage electrical appliance 100, and the second stop assembly 822 may not press against the second low-voltage electrical appliance 100.

[0081] Optionally, both the first stop assembly 821 and the second stop assembly 822 include a stop drive 8211 and a stop block 8212. The stop drive 8211 drives the stop block 8212 to abut against the low-voltage electrical appliance 100 on the conveyor line 1. The surface of the stop block 8212 that contacts the low-voltage electrical appliance 100 is an inclined surface 82121, and the distance between the inclined surface 82121 and the stop plate 81 decreases along the conveying direction of the conveyor line 1. The stop drive 8211 of the first stop assembly 821 drives the stop block 8212, causing the first low-voltage electrical appliance 100 on the conveyor line 1 along the conveying direction of the conveyor line 1 to abut against the stop plate 81. The stop drive 8211 of the second stop assembly 822 drives the stop block 8212, causing the second low-voltage electrical appliance 100 adjacent to the first low-voltage electrical appliance 100 on the conveyor line 1 to abut against the stop plate 81. The stop drive component 8211 can be a cylinder, and no specific limitation is made here.

[0082] After the first low-voltage electrical appliance 100 is conveyed along the conveying direction of conveyor line 1, the first stop assembly 821 is activated and in a state of pressing against the low-voltage electrical appliance 100. The second stop assembly 822 no longer presses against the second low-voltage electrical appliance 100. Conveyor line 1 conveys the low-voltage electrical appliance 100 along the conveying direction. The low-voltage electrical appliance 100 is stopped by the first stop assembly 821, and the low-voltage electrical appliance 100 is stopped by the inclined surface 82121. Compared with the mechanism that directly applies pressure to the low-voltage electrical appliance 100, this structure will not cause impact to the low-voltage electrical appliance 100, protecting the product from damage.

[0083] A product detection element 83 is installed above the position of the first low-voltage electrical appliance 100 near the feeding mechanism 2 on the conveyor line 1. The product detection element 83 is used to detect whether there is a low-voltage electrical appliance 100 on the conveyor line 1. When the product detection element 83 detects the presence of a low-voltage electrical appliance 100 at that position, and the second stop assembly 822 is in a state of pressing against the second low-voltage electrical appliance 100, the first stop assembly 821 will stop pressing against the first low-voltage electrical appliance 100. The product detection element 83 can be a fiber optic probe. A bracket 84 is connected to the stop drive component 8211 of the first stop assembly 821. The bracket 84 extends above the first low-voltage electrical appliance 100, and the product detection element 83 is fixedly installed on the bracket 84.

[0084] In some other embodiments, the stop unit includes a first stop assembly and a second stop assembly. The first stop assembly includes a partition plate and a partition drive member, which drives the partition plate to extend to stop the first low-voltage electrical appliance 100. The second stop assembly includes a pressing block and a pressing drive member, which drives the pressing block to press against the top surface of the second low-voltage electrical appliance 100, so that the bottom surface of the low-voltage electrical appliance 100 contacts the stop plate 81, thereby limiting the second low-voltage electrical appliance 100.

[0085] When assembling a pin using the pin assembly device provided in this application, the following steps are performed:

[0086] First, the conveyor line 1 conveys the low-voltage electrical appliance 100, and the first stop assembly 821 of the material distribution mechanism 8 stops the first low-voltage electrical appliance 100 near the material feeding mechanism 2.

[0087] Second, the low-voltage electrical appliance 100 is conveyed to the feeding mechanism 2. The second stop component 822 of the feeding mechanism 8 stops the second low-voltage electrical appliance 100 adjacent to the first low-voltage electrical appliance 100. The first stop component 821 no longer stops the first low-voltage electrical appliance 100. The conveyor line 1 conveys the first low-voltage electrical appliance 100 to the feeding mechanism 8. At the same time, the first stop component 821 is in the state of stopping the low-voltage electrical appliance 100. The second stop component 822 no longer stops the second low-voltage electrical appliance 100, so as to continue conveying the low-voltage electrical appliance 100.

[0088] Third, when the low-voltage electrical appliance 100 is conveyed to the feeding mechanism 2, the pin assembly mechanism 4 assembles the pins onto the low-voltage electrical appliance 100. The specific assembly method is as described above and will not be repeated here.

[0089] Fourth, the first material transfer drive unit 51 drives the second material transfer drive unit 52 to move from the pin detection position to the pin assembly position, and the second material transfer drive unit 52 drives the actuating member 53 to extend along the first direction. The actuating member 53 is located on the side of the pin assembly position away from the pin detection position.

[0090] Fifth, the first material transfer drive unit 51 drives the second material transfer drive unit 52 to move from the pin assembly position to the pin detection position, pushing the low-voltage electrical appliance 100 with the pin assembled at the pin assembly position to the pin detection position. After the low-voltage electrical appliance 100 is pushed to the pin detection position, the recess on the top surface of the low-voltage electrical appliance 100 abuts against the positioning block 71.

[0091] Sixth, while the low-voltage electrical appliance 100 is being detected at the pin detection position, the positioning drive 72 drives the positioning block 71 to move away from the pin detection position, the second material transfer drive unit 52 drives the actuating component 53 to retract along the first direction, and the feeding mechanism 2 pushes the low-voltage electrical appliance 100 on the conveyor line 1 to the pin assembly position.

[0092] Seventh, the feeding mechanism 2 is reset. While the first material transfer drive unit 51 drives the second material transfer drive unit 52 to move from the pin detection position to the pin assembly position, the feeding mechanism 2 pushes the low-voltage electrical appliance 100 on the conveyor line 1 to the pin assembly position, and the pushing mechanism 6 pushes the low-voltage electrical appliance 100 that has been detected at the pin detection position to the conveyor line 1.

[0093] Eighth, the pin assembly mechanism 4 assembles the pins into the low-voltage electrical appliance 100 located in the pin assembly position. At the same time, the pushing mechanism 6 resets and moves to the initial position. The second material transfer drive unit 52 drives the actuating member 53 to extend along the first direction. The actuating member 53 is once again located on the side of the pin assembly position away from the pin detection position. The feeding mechanism 2 resets. At the same time as the pushing mechanism 6 resets and moves to the initial position, the positioning drive member 72 drives the positioning block 71 to move, so that the positioning block 71 is placed on the side of the pin detection position.

[0094] Repeat the above steps to install the pins of the low-voltage electrical appliance 100.

[0095] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pin assembly device, characterized in that, The system includes a conveyor line (1), a feeding mechanism (2) on one side of the conveyor line (1), and a pin assembly platform (3) on the other side of the conveyor line (1). The pin assembly platform (3) has a pin assembly position and a pin detection position. A pin assembly mechanism (4) is provided above the pin assembly position. A material transfer mechanism (5) and a material pusher mechanism (6) are provided on the side of the pin assembly platform (3) away from the conveyor line (1). The material transfer mechanism (5) is used to move between the pin assembly position and the pin detection position, and when moving towards the pin detection position, it assembles the low-voltage electrical appliance (100) with the pins in the pin assembly position. The low-voltage electrical appliance (100) is pushed to the pin detection position; while the low-voltage electrical appliance (100) is detected at the pin detection position, the material transfer mechanism (5) moves from the pin detection position to the pin assembly position, and the feeding mechanism (2) is used to push the low-voltage electrical appliance (100) on the conveyor line (1) to the pin assembly position, and the pushing mechanism (6) is used to push the low-voltage electrical appliance (100) that has been detected at the pin detection position to the conveyor line (1); the pin assembly mechanism (4) is used to assemble a pin on the low-voltage electrical appliance (100) placed at the pin assembly position, and at the same time the pushing mechanism (6) moves to the initial position.

2. The pin assembly device according to claim 1, characterized in that, The material transfer mechanism (5) includes a first material transfer drive unit (51), a second material transfer drive unit (52), and a toggle member (53). The first material transfer drive unit (51) and the second material transfer drive unit (52) are both located on the side of the pin assembly platform (3) away from the conveyor line (1), and the toggle member (53) is located above the pin assembly platform (3). The first material transfer drive unit (51) is used to drive the second material transfer drive unit (52) to move from the pin detection position to the pin assembly position. The second material transfer drive unit (52) is used to drive the toggle member (53) to extend along a first direction, so that the toggle member (53) is located on the side of the pin assembly position away from the pin detection position, or the first material transfer drive unit (51) is located on the side of the pin assembly position away from the pin detection position. 1) The second material transfer drive unit (52) is used to drive the second material transfer drive unit (52) to move from the pin assembly position to the pin detection position, so that the actuating member (53) drives the low-voltage electrical appliance (100) at the pin assembly position to move to the pin detection position; while the low-voltage electrical appliance (100) is detected at the pin detection position, the second material transfer drive unit (52) placed at the pin detection position drives the actuating member (53) to retract along the first direction, the first material transfer drive unit (51) drives the second material transfer drive unit (52) to move from the pin detection position to the pin assembly position, and while the pusher mechanism (6) moves to the initial position, the second material transfer drive unit (52) placed at the pin assembly position drives the actuating member (53) to extend along the first direction.

3. The pin assembly device according to claim 2, characterized in that, The first material transfer drive unit (51) includes a first material transfer drive cylinder (511), and the second material transfer drive unit (52) includes a second material transfer drive cylinder. The movable end of the first material transfer drive cylinder (511) is connected to a material transfer slider (512), which is slidably connected to the pin assembly platform (3). The second material transfer drive cylinder is fixed on the material transfer slider (512), and the movable end of the second material transfer drive cylinder is connected to the actuating member (53).

4. The pin assembly device according to claim 1, characterized in that, The pin assembly device further includes a positioning mechanism (7), which includes a positioning block (71) and a positioning drive (72). While the pushing mechanism (6) moves to the initial position, the positioning drive (72) drives the positioning block (71) to move, so that the positioning block (71) is placed on one side of the pin detection position. When the transfer mechanism (5) pushes the low-voltage electrical appliance (100) of the pin assembly position to the pin detection position, the low-voltage electrical appliance (100) is pushed in the direction, and the concave part of the top surface of the low-voltage electrical appliance (100) abuts against the positioning block (71). While the low-voltage electrical appliance (100) is detected at the pin detection position, the positioning drive (72) drives the positioning block (71) to move away from the pin detection position, so that the pushing mechanism (6) can push the low-voltage electrical appliance (100) to the conveyor line (1).

5. The pin assembly device according to claim 1, characterized in that, The pin assembly mechanism (4) includes a pin conveying unit (41), a pin mounting unit (42), and an intermediate transmission unit (43). The pin conveying unit (41) and the pin mounting unit (42) are located above the pin assembly platform (3), and the pin mounting unit (42) is correspondingly located to the pin assembly position. The intermediate transmission unit (43) is used to receive the pins conveyed by the pin conveying unit (41) and convey the pins to the area below the pin mounting unit (42). The pin mounting unit (42) is used to install the pins conveyed by the intermediate transmission unit (43) onto the low-voltage electrical appliance (100) located at the pin assembly position.

6. The pin assembly device according to claim 5, characterized in that, The pin assembly platform (3) includes a first mounting plate (31) and a second mounting plate (32). The first mounting plate (31) and the second mounting plate (32) are parallel and spaced apart. The pin assembly position and the pin detection position are formed between the first mounting plate (31) and the second mounting plate (32). A third mounting plate (33) is parallel and spaced apart on the side of the second mounting plate (32) away from the first mounting plate (31). The intermediate transmission unit (43) includes a turntable (431) and a turntable drive (432). The turntable (431) is disposed between the second mounting plate (32) and the third mounting plate (33), and the turntable (431) is in contact with the second mounting plate (32). The turntable drive (432) is disposed on the third mounting plate (32). 33) The turntable (431) is provided with a pin bearing hole (433). The second mounting plate (32) is provided with a pin mounting hole at the position corresponding to the pin mounting unit (42). The turntable drive (432) is used to drive the turntable (431) to rotate, so that the pin bearing hole (433) receives the pin conveyed by the pin conveying unit (41), or so that the pin bearing hole (433) is aligned with the pin mounting hole. The pin in the pin bearing hole (433) passes through the pin mounting hole and falls into the low-voltage electrical appliance (100) placed at the pin assembly position. The pin mounting unit (42) is used to install the pin that falls into the low-voltage electrical appliance (100) through the pin bearing hole (433) and the pin mounting hole onto the low-voltage electrical appliance (100).

7. The pin assembly device according to claim 6, characterized in that, The turntable (431) is provided with at least two pin bearing holes (433), and the at least two pin bearing holes (433) are symmetrically arranged with respect to the axis of the turntable (431); and / or, the thickness of the turntable (431) is less than the length of the pin.

8. The pin assembly device according to claim 6, characterized in that, The third mounting plate (33) is parallel to and spaced apart from the second mounting plate (32) by a fourth mounting plate (34). The turntable drive (432) is located between the third mounting plate (33) and the fourth mounting plate (34). The pin mounting unit (42) includes a pin drive (421) and an assembly pin (422). The pin drive (421) is located on the side of the fourth mounting plate (34) away from the third mounting plate (33). The driving end of the pin drive (421) passes through the fourth mounting plate (34) and is connected to one end of the assembly pin (422). The other end of the assembly pin (422) passes through the third mounting plate (33) and is positioned above the turntable (431). The pin drive (421) is used to drive the assembly pin (422) through the pin bearing hole (433) and the pin mounting hole.

9. The pin assembly device according to claim 1, characterized in that, The assembly device for the pins also includes a material distribution mechanism (8). Along the conveying direction of the conveying line (1), the material distribution mechanism (8) is located upstream of the feeding mechanism (2). The material distribution mechanism (8) is used to convey the low-voltage electrical appliances (100) on the conveying line (1) one by one to the feeding mechanism (2).

10. The pin assembly device according to claim 9, characterized in that, The material distribution mechanism (8) includes a stop plate (81) and a stop unit (82). The stop plate (81) is fixedly disposed on one side of the conveyor line (1), and the stop unit (82) is disposed on the other side of the conveyor line (1). The stop unit (82) includes a first stop assembly (821) and a second stop assembly (822). The first stop assembly (821) is used to make the first low-voltage electrical appliance (100) on the conveyor line (1) near the feeding mechanism (2) abut against the stop plate (81). The second stop assembly (822) is used to make the second low-voltage electrical appliance (100) on the conveyor line (1) near the feeding mechanism (2) abut against the stop plate (81).

11. The pin assembly device according to claim 10, characterized in that, Both the first stop assembly (821) and the second stop assembly (822) include a stop drive (8211) and a stop block (8212). The stop drive (8211) is used to drive the stop block (8212) to abut against the low-voltage electrical appliance (100) on the conveyor line (1). The surface of the stop block (8212) that contacts the low-voltage electrical appliance (100) is an inclined surface (82121). The distance between the inclined surface (82121) and the stop plate (81) decreases along the conveying direction of the conveyor line (1).

12. The pin assembly device according to claim 10, characterized in that, A product detection component (83) is provided above the position of the first low-voltage electrical appliance (100) near the feeding mechanism (2) on the conveyor line (1). The product detection component (83) is used to detect whether there is a low-voltage electrical appliance (100) on the conveyor line (1).

13. A material dispensing mechanism, characterized in that, The system includes a conveyor line (1), a stop plate (81), and a stop unit (82). The stop plate (81) is fixedly disposed on one side of the conveyor line (1), and the stop unit (82) is disposed on the other side of the conveyor line (1). The stop unit (82) includes a first stop assembly (821) and a second stop assembly (822). Both the first stop assembly (821) and the second stop assembly (822) include a stop drive (8211) and a stop block (8212). The stop drive (8211) of the first stop assembly (821) is used to drive the stop block (8212), and the stop block (8212) causes the conveyor line (1) to stop. The first low-voltage electrical appliance (100) along the conveying direction of the conveyor line (1) abuts against the stop plate (81). The stop drive (8211) of the second stop assembly (822) is used to drive the stop block (8212). The stop block (8212) causes the second low-voltage electrical appliance (100) adjacent to the first low-voltage electrical appliance (100) on the conveyor line (1) to abut against the stop plate (81). The surface of the stop block (8212) in contact with the low-voltage electrical appliance (100) is an inclined surface (82121), and the distance between the inclined surface (82121) and the stop plate (81) decreases along the conveying direction of the conveyor line (1).

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