Full-automatic assembly line for keyboard key scissors

Abstract

This invention provides a fully automated assembly line for keyboard key scissor-switch feet, comprising an outer shearing and cutting device, an inner shearing and cutting device, an inner and outer shearing and pressing device, and a scissor-switch foot mounting base plate arranged sequentially. The outer shearing and cutting device includes an outer shearing plate, with a first laser positioning transmitter embedded in its bottom. Multiple assembly auxiliary blocks are fixedly arranged between two positioning posts on a support plate. A defect detector is fixedly mounted on a support rod, and a second laser positioning receiver is embedded in a baffle. A waste basket is movably arranged within the cavity of each assembly auxiliary block. This invention provides a fully automated assembly line for keyboard key scissor-switch feet, which maintains the cleanliness of the supporting device and forms a pre-assembled mounting angle, resulting in higher assembly efficiency for the outer and inner scissors. It also allows for independent defect detection, effectively improving product quality.

Description

Technical Field

[0001] This invention relates to the field of scissor-switch assembly technology, specifically a fully automated assembly line for keyboard key scissor-switch components. Background Technology

[0002] In the prior art, an automatic scissor-foot assembly machine with publication number "CN109920681A" belongs to the field of scissor-foot assembly technology. It includes a horizontally movable lower mold, an upper mold capable of both horizontal and vertical movement, a vertically movable cutting mechanism, and a stripping mechanism. The lower mold is used to pre-place inner and outer shears, and the upper mold picks up the inner shear from the lower mold to begin assembly. The cutting mechanism engages with the lower mold to separate the inner and outer shears from the material head. The bottom of the inclined base groove on the lower mold has a ejector pin protruding towards its opening end. The outer shear is placed at an angle through the bottom of the groove. When the front shaft of the inner shear is engaged with the front shaft hole of the outer shear and continues to move forward, the lower rear side of the outer shear slides into contact with the top surface of the ejector pin, gradually lifting the rear side of the outer shear upwards and ultimately causing the rear shaft hole of the outer shear to engage with the rear shaft of the inner shear. This automatic assembly machine has a reasonable structure, continuous processes, strong targeting, and high assembly efficiency.

[0003] However, there are still some obvious defects in its use: 1. When assembling the scissor legs, the inner and outer shears are placed horizontally, but the inner shear needs to be installed in the outer shear during assembly. Therefore, the outer shear needs to be picked up or tilted before assembly. It can be seen that the above device is inconvenient to use and has low efficiency; 2. Both the outer and inner shears are precision parts and need to be kept clean after installation and assembly. Therefore, the supporting device of the inner and outer shears needs to be cleaned regularly, otherwise it will contaminate the inner and outer shears. The above device lacks the necessary cleaning device, so the finished scissor legs need additional cleaning treatment. Summary of the Invention

[0004] The purpose of this invention is to provide a fully automated assembly line for keyboard key scissor-switch mechanisms to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fully automatic assembly line for keyboard key scissor-switch feet includes an outer shearing and pressing device, an inner shearing and pressing device, an inner and outer shearing and pressing device, and a scissor-switch foot mounting base plate arranged sequentially.

[0007] The external shearing and cutting device includes an external shearing plate, and a first laser positioning transmitter is embedded in the bottom of the external shearing plate. The internal shearing and cutting device includes an internal shearing plate, and a second laser positioning transmitter is embedded in the bottom of the internal shearing plate.

[0008] A transmission belt is installed through the external shearing and pressing device, the internal shearing and pressing device, and the internal and external shearing and pressing device. Multiple bearing plates are placed on the transmission belt. A positioning post is fixedly installed at both ends of the bearing plate. A first laser positioning receiver is embedded in the top of the positioning post. Multiple assembly auxiliary blocks are fixedly installed between the two positioning posts on the bearing plate.

[0009] The assembly auxiliary block is provided with openings, oblique holes, grooves, airflow holes, mounting slots, and inlets and outlets. The assembly auxiliary block is hollow and a third hydraulic cylinder is fixedly installed inside. A lifting block is fixedly installed on the piston rod of the third hydraulic cylinder. A horizontal air blowing channel is opened in the lifting block. A third laser positioning transmitter is embedded in the side of the lifting block. An air guide pipe connecting the air blowing channel is embedded in the lifting block. The air guide pipe is connected to the fan through an air inlet pipe. A collection basket is installed in the inner cavity of the assembly auxiliary block below the oblique hole. An adhesive layer is installed on the inner wall of the collection basket. A photoelectric sensor is fixedly installed in the groove.

[0010] A support rod is fixedly installed on the top surface of the assembly auxiliary block, a defect detector is fixedly installed on the support rod, a fourth hydraulic cylinder is fixedly installed in the mounting groove, a baffle is fixedly installed on the piston rod of the fourth hydraulic cylinder, a second laser positioning receiver is embedded in the baffle, and a waste basket is movably installed in the inner cavity of the assembly auxiliary block.

[0011] An outer shearing plate and an inner shearing plate can be placed between the positioning posts located on the same bearing plate. The outer shearing plate is provided with multiple outer shears, and the inner shearing plate is provided with multiple inner shears.

[0012] A robotic arm is installed between the inner and outer shearing and pressing device and the shear foot mounting base plate for transferring the shear foot. An aluminum plate is placed on the shear foot mounting base plate.

[0013] Preferably, a crossbeam is provided above the external shearing and pressing device, the internal shearing and pressing device, and the internal and external shearing and pressing device, and the first hydraulic cylinder, the second hydraulic cylinder, and the robot arm are all fixedly mounted on the crossbeam.

[0014] Preferably, the external shearing and cutting device further includes a first hydraulic cylinder, on which an external shearing plate is fixedly mounted, and at the bottom of the external shearing plate are multiple external shearing blades.

[0015] Preferably, the internal shearing and cutting device includes a second hydraulic cylinder, an internal shearing plate is fixedly mounted on the piston rod of the second hydraulic cylinder, and a plurality of internal shearing blades are fixedly mounted on the bottom of the internal shearing plate.

[0016] Preferably, a compression spring is connected between the bottom of the waste bin and the inner bottom wall of the assembly auxiliary block, and an alarm is fixedly installed on the inner bottom wall of the assembly auxiliary block, which can be triggered by the waste bin being pressed down.

[0017] Preferably, a transparent observation window is embedded in the side wall of the assembly auxiliary block.

[0018] Preferably, a guide plate is fixedly provided in the inner cavity of the assembly auxiliary block to limit the vertical movement of the waste basket.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. After the outer scissors of the present invention are placed on the assembly auxiliary block, the photoelectric sensor will detect the presence of the outer scissors and start the third hydraulic cylinder through the external controller. Then, the lifting block will lift one side of the outer scissors, so that the outer scissors form a certain pre-assembly installation angle, which facilitates subsequent pressing assembly, making the assembly more convenient and efficient.

[0021] 2. When no outer or inner scissors are placed on the assembly auxiliary block of the present invention, the air blowing channel in the lifting block will move to a position flush with the low surface of the assembly auxiliary block and start the fan to blow air out of the air blowing channel to clean the assembly auxiliary block, so as to prevent dust and dirt attached to it from contaminating the outer or inner scissors, thereby maintaining the cleanliness of the device used for support and avoiding reverse contamination.

[0022] 3. When assembling the scissor legs, it is necessary to inspect whether the outer and inner shears are qualified products beforehand. The traditional inspection is centralized, that is, a large number of outer and inner shears are placed in a large box and inspected one by one when being unloaded. However, the accuracy of this inspection is low, and the scissors are prone to sticking or stacking, which can easily lead to errors. This application has made improvements to this issue. Each assembly auxiliary block is equipped with an independent defect detection instrument, which does not interfere with each other. Moreover, the scissors are lifted to an inclined state at this time, which can also make it easier to detect the condition of the inner frame sidewall, further improving the accuracy of the inspection. The two complement each other, making the device more effective.

[0023] This invention provides a fully automated assembly line for keyboard key scissor feet, which can keep the device used for support clean and form a pre-assembled installation angle, making the assembly efficiency of the outer and inner scissors higher, and can independently perform defect detection, effectively improving product quality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the assembly equipment for the keyboard key scissor-switch mechanism of the present invention.

[0025] Figure 2This is a schematic diagram of the specific structure of the external shearing and cutting device of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal shearing and pressing device of the present invention.

[0027] Figure 4 This is a schematic cross-sectional view of the internal structure of the assembly auxiliary block of the present invention;

[0028] Figure 5 For the present invention Figure 4 Enlarged view of point A in the image;

[0029] Figure 6 This is a schematic diagram showing the state of the assembly auxiliary block of the present invention when the outer or inner shears are being lifted;

[0030] Figure 7 This is a schematic diagram showing the state of the assembly auxiliary block of the present invention when retrieving the outer or inner scissors.

[0031] In the diagram: 1. External shearing and pressing device; 2. Internal shearing and pressing device; 3. Internal and external shearing pressing device; 4. Scissor foot mounting base plate; 5. Crossbeam; 6. First hydraulic cylinder; 7. External shearing plate; 701. First laser positioning transmitter; 8. External cutting blade; 9. Second hydraulic cylinder; 10. Internal shearing plate; 101. Second laser positioning transmitter; 11. Internal cutting blade; 12. Transmission belt; 13. Bearing plate; 14. Positioning post; 141. First laser positioning receiver; 15. Assembly auxiliary block; 151. Opening; 152. Angled hole; 153. Groove; 154. Airflow hole; 155. Mounting groove; 15 6. Inlet / Outlet, 16. Third Hydraulic Cylinder, 17. Lifting Block, 171. Air Blowing Channel, 18. Third Laser Positioning Transmitter, 19. Air Guide Pipe, 20. Air Inlet Pipe, 21. Fan, 22. Collection Basket, 23. Adhesive Layer, 24. Photoelectric Sensor, 26. Support Rod, 27. Defect Detector, 28. Fourth Hydraulic Cylinder, 29. Baffle, 30. Second Laser Positioning Receiver, 31. Waste Basket, 32. Compression Spring, 33. Warning Device, 34. Transparent Observation Window, 35. Guide Plate, 36. Outer Shearing Plate, 37. Outer Shears, 38. Inner Shearing Plate, 39. Inner Shears, 40. Robotic Arm, 41. Aluminum Plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 7 The present invention provides a technical solution:

[0034] Example 1:

[0035] A fully automatic assembly line for keyboard key scissor feet includes an outer shearing and cutting device 1, an inner shearing and cutting device 2, an inner and outer shearing and pressing device 3, and a scissor foot mounting base plate 4 arranged sequentially. The outer shearing and cutting device 1 is used to cut the outer scissors 37 from the outer shearing plate 36, the inner shearing and cutting device 2 is used to cut the inner scissors 39 from the inner shearing plate 38, and the inner and outer shearing and pressing device 3 assembles the cut outer scissors 37 and inner scissors 39 together to form scissor feet. An aluminum plate 41 can be placed on the scissor foot mounting base plate 4 to facilitate the overall mounting of the assembled scissor feet onto the aluminum plate 41.

[0036] A crossbeam 5 is provided above the outer shearing and pressing device 1, the inner shearing and pressing device 2, and the inner and outer shearing and pressing device 3. The first hydraulic cylinder 6, the second hydraulic cylinder 9, and the robot arm 40 are all fixedly mounted on the crossbeam 5. The outer shearing and pressing device 1 includes an outer shearing plate 7, and a first laser positioning transmitter 701 is embedded in the bottom of the outer shearing plate 7. The inner shearing and pressing device 2 includes an inner shearing plate 10, and a second laser positioning transmitter 101 is embedded in the bottom of the inner shearing plate 10. Both the first laser positioning transmitter 701 and the second laser positioning transmitter 101 can emit lasers for positioning and accuracy, thereby improving the cutting accuracy of the outer shears 37 and the inner shears 39.

[0037] A transmission belt 12 is installed through the outer shearing and pressing device 1, the inner shearing and pressing device 2, and the inner and outer shearing and pressing device 3. Multiple support plates 13 are placed on the transmission belt 12. When the transmission belt 12 is running, it can carry the support plates 13 to move with it. Both ends of the support plate 13 are fixedly provided with positioning posts 14. The top of the positioning post 14 is embedded with a first laser positioning receiver 141. The first laser positioning receiver 141 can receive the laser emitted by the first laser positioning transmitter 701 and the second laser positioning transmitter 101, thereby realizing identification and indicating accurate positioning. Multiple assembly auxiliary blocks 15 are fixedly provided between the two positioning posts 14 on the support plate 13. During assembly, the outer shears 37 will first be placed on the assembly auxiliary blocks 15.

[0038] The assembly auxiliary block 15 is provided with openings 151, oblique holes 152, grooves 153, airflow holes 154, mounting grooves 155, and inlets / outlets 156. The airflow holes 154 are designed to facilitate gas flow after the fan 21 starts. The assembly auxiliary block 15 is hollow and stepped, with a third hydraulic cylinder 16 fixedly installed inside. A lifting block 17 is fixedly installed on the piston rod of the third hydraulic cylinder 16. The top corners of the lifting block 17 are rounded to avoid... To prevent scratching of the outer shears 37 and inner shears 39 during lifting, a transverse air blowing channel 171 is provided in the lifting block 17. A third laser positioning transmitter 18 is embedded in the side of the lifting block 17. An air guide pipe 19 is embedded in the lifting block 17, connecting to the air blowing channel 171. The air guide pipe 19 is connected to the fan 21 through an air inlet pipe 20. The length of the air inlet pipe 20 needs to be redundant to facilitate the vertical movement of the lifting block 17. The air inlet pipe 20 can also be set as a flexible pipe. After the machine 21 is started, the airflow will eventually blow out from the blowing channel 171 through the air inlet pipe 20 and the air guide pipe 19, thereby cleaning the surface of the assembly auxiliary block 15 on which the outer scissors 37 and inner scissors 39 are placed, preventing them from being contaminated by the airflow. A collection basket 22 is provided in the inner cavity of the assembly auxiliary block 15 below the inclined hole 152. The airflow blown out of the blowing channel 171 can blow the dust down from the inclined hole 152 into the collection basket 22 for centralized collection. An adhesive layer 23 is provided on the inner wall of the collection basket 22. The adhesive layer 23 can be self-adhesive, double-sided tape, etc., and its purpose is to adhere the dust and prevent the dust from being blown out and contaminating the outer scissors 37 and inner scissors 39 again. A photoelectric sensor 24 is fixedly installed in the groove 153. The main function of the photoelectric sensor 24 is to monitor whether the outer scissors 37 or inner scissors 39 are placed on the assembly auxiliary block 15, and then start or stop the corresponding electrical components through the external controller.

[0039] A support rod 26 is fixedly installed on the top surface of the assembly auxiliary block 15. A defect detector 27 is fixedly installed on the support rod 26. The function of the defect detector 27 is to detect whether the outer shears 37 and the inner shears 39 are defective products. If the outer shears 37 is defective, it is directly sent to the waste basket 31 to avoid wasting the inner shears 39 by continuing to match and install them. A fourth hydraulic cylinder 28 is fixedly installed in the installation groove 155. A baffle 29 is fixedly installed on the piston rod of the fourth hydraulic cylinder 28. The installation groove 155 is a longitudinal groove, and the inlet and outlet 156 are transverse grooves. The two are interconnected. When the baffle 29 is used to block the outer scissors 37 and the inner scissors 39, it is located in the inlet and outlet 156. When the baffle 29 moves to allow the outer scissors 37 and the inner scissors 39 to pass through, it is located in the mounting groove 155. The baffle 29 is embedded with a second laser positioning receiver 30. The third laser positioning transmitter 18 and the second laser positioning receiver 30 are matched with each other. The latter can receive the laser information emitted by the former. The assembly auxiliary block 15 is movably arranged with a waste basket 31 in its inner cavity. The waste basket 31 is used to collect unqualified outer scissors 37 and inner scissors 39.

[0040] An outer shearing plate 36 and an inner shearing plate 38 can be placed between the positioning posts 14 located on the same bearing plate 13. The outer shearing plate 36 is provided with multiple outer shears 37, and the inner shearing plate 38 is provided with multiple inner shears 39. The outer shears 37 in the outer shearing plate 36 and the inner shears 39 in the inner shearing plate 38 are all set through connection points to facilitate cutting.

[0041] A robotic arm 40 is installed between the inner and outer shearing and pressing device 3 and the scissor foot mounting base plate 4. The main function of the robotic arm 40 is to transfer the assembled scissor feet. The JXU-50 model produced by Suzhou Jingxu Micro Automation Co., Ltd. can be used. Since the robotic arm 40 is a common existing device and is not the focus of this invention, it will not be described in detail here. An aluminum plate 41 is placed on the scissor foot mounting base plate 4, and finally the scissor feet are installed on the aluminum plate 41.

[0042] Example 2:

[0043] This embodiment, based on Embodiment 1, further discloses and defines the specific structures of the outer shearing and pressing device 1 and the inner shearing and pressing device 2: The outer shearing and pressing device 1 also includes a first hydraulic cylinder 6, on which an outer shearing plate 7 is fixedly mounted. The first hydraulic cylinder 6 can drive the outer shearing plate 7 to rise and fall. Multiple outer shearing cutters 8 are fixedly mounted at the bottom of the outer shearing plate 7. The outer shearing cutters 8 are used to cut the outer scissors 37 off the outer shearing plate 36. The inner shearing and pressing device 2 includes a second hydraulic cylinder 9, on which an inner shearing plate 10 is fixedly mounted. The second hydraulic cylinder 9 can drive the inner shearing plate 10 to rise and fall. Multiple inner shearing cutters 11 are fixedly mounted at the bottom of the inner shearing plate 10. The inner shearing cutters 11 are used to cut the inner scissors 39 off the inner shearing plate 38.

[0044] Example 3:

[0045] This embodiment, based on Embodiment 1, adds the following structure to the inner cavity of the assembly auxiliary block 15: A compression spring 32 is connected between the bottom of the waste basket 31 and the inner bottom wall of the assembly auxiliary block 15. Therefore, as the number of outer scissors 37 and inner scissors 39 placed in the waste basket 31 gradually increases, the compression spring 32 will gradually be compressed and shortened. An alarm 33 is fixedly installed on the inner bottom wall of the assembly auxiliary block 15, and the alarm 33 can be triggered by pressing down on the waste basket 31. When the number of outer scissors 37 and inner scissors 39 in the waste basket 31 reaches a certain level, the waste basket 31 will descend to trigger and press the alarm 33, thus activating the alarm. The device 33 is activated to remind the user to remove the waste in time. Therefore, the side of the assembly auxiliary block 15 should be matched with a snap-on setting or a detachable movable setting to facilitate the removal of materials from the waste basket 31. A transparent observation window 34 is embedded in the side wall of the assembly auxiliary block 15. The setting of the transparent observation window 34 makes it easy for the user to observe the situation inside the assembly auxiliary block 15 and thus know the amount of waste in time, which is more convenient. A guide plate 35 is fixedly installed in the inner cavity of the assembly auxiliary block 15 to limit the up and down movement of the waste basket 31 and prevent the outer scissors 37 and inner scissors 39 from spilling due to the shaking of the waste basket 31.

[0046] Working principle:

[0047] In use, the outer shearing plate 36 is first placed on two opposing positioning posts 14. Then, the transmission belt 12 drives the support plate 13 to rotate until the first laser positioning receiver 141 in the positioning post 14 on the support plate 13 is aligned with the first laser positioning transmitter 701. Then, the transmission belt 12 stops. Next, the first hydraulic cylinder 6 is activated to push the outer shearing plate 7 downward until the outer shearing cutter 8 below the outer shearing plate 7 cuts the outer shears 37 off the outer shearing plate 36.

[0048] At this time, the outer scissors 37 fall on the corresponding assembly auxiliary blocks 15. When the photoelectric sensor 24 detects the presence of an object, i.e., the outer scissors 37, it will activate the third hydraulic cylinder 16 through the external controller, causing the third hydraulic cylinder 16 to lift the lifting block 17 upward a certain distance. At this time, the outer scissors 37 are in an inclined state, forming a certain pre-assembly installation angle, which facilitates subsequent pressing assembly. At the same time, the defect detector 27 will be activated to detect whether there are defects in the outer scissors 37. Since the outer scissors 37 are in an inclined state, it is easier to detect the condition of its inner frame sidewall, further improving the accuracy of the detection. The two complement each other, making the use of this device more effective.

[0049] If a defective product is detected, the controller remotely activates the fourth hydraulic cylinder 28. The fourth hydraulic cylinder 28 moves the baffle 29 upward a certain distance, exposing the inlet and outlet 156. At this time, the inclined outer scissors 37 will slide down into the assembly auxiliary block 15 under the action of gravity and stay on the waste basket 31 for centralized collection. When the waste basket 31 is filled with a large amount of material, it will press down to trigger the alarm 33 to remind the user to take out the fertilizer in time.

[0050] Next, the conveyor belt 12 continues to operate until the first laser positioning receiver 141 is aligned with the second laser positioning transmitter 101. At this time, the conveyor belt 12 stops, and the second hydraulic cylinder 9 drives the inner shearing plate 10 to press down, so that the inner shearing cutter 11 at the bottom of the inner shearing plate 10 cuts the inner scissors 39 off the inner shearing plate 38 and places them above the outer scissors 37 obtained in the previous step, which is convenient for subsequent matching and assembly. Finally, the conveyor belt 12 drives the carrier plate 13 to the inner and outer shearing pressing device 3. The inner and outer shearing pressing device 3 assembles the outer scissors 37 and the inner scissors 39 together to form scissor legs. It should be noted that if the outer scissors 37 at a certain place is defective, there will be no outer scissors 37 on the corresponding assembly auxiliary block 15. At this time, although the inner scissors 39 are placed on the assembly auxiliary block 15 at that place, they will not be assembled, but will be stored separately. The advantage of this setting is that unqualified outer scissors 37 can be identified in advance to avoid wasting qualified inner scissors 39.

[0051] Finally, the robotic arm 40 takes the installed scissor legs and assembles them onto the aluminum plate 41 placed on the top surface of the scissor leg mounting base plate 4, thereby completing the assembly.

[0052] When no outer scissors 37 or inner scissors 39 are placed on the assembly auxiliary block 15, that is, when the photoelectric sensor 24 cannot detect an item, the third hydraulic cylinder 16 lifts the lifting block 17 upwards until the third laser positioning transmitter 18 in the lifting block 17 and the second laser positioning receiver 30 in the baffle 29 are at the same horizontal height. At this time, it indicates that the air blowing channel 171 in the lifting block 17 is aligned with the placement surface of the assembly auxiliary block 15. Then, the fan 21 is started. The fan 21 blows air out through the air inlet pipe 20, the air guide pipe 19 and the air blowing channel 171 in sequence to blow dust off the placement surface of the assembly auxiliary block 15. The dust falls into the collection basket 22 through the inclined hole 152. Since the collection basket 22 is provided with an adhesive layer 23, the dust can be adhered to, preventing the dust from floating and causing secondary pollution. This effectively improves the cleanliness of the outer scissors 37 and inner scissors 39, avoids cross-contamination, and improves product quality.

[0053] The electrical components used in the various embodiments and working principle descriptions of this invention, such as the first hydraulic cylinder 6, the second hydraulic cylinder 9, the third hydraulic cylinder 16, and the fourth hydraulic cylinder 28, can all be MOB-FA models manufactured by Guangdong Xindongrong Hydraulic Technology Co., Ltd.; the first laser positioning transmitter 701, the second laser positioning transmitter 101, the third laser positioning transmitter 18, and the corresponding matching first laser positioning receiver 141 and second laser positioning receiver 30 can all be KR168-LG-11 models manufactured by Nantong Kairui Laser Technology Co., Ltd.; the fan 21 can be HB4020B12H models manufactured by Dongguan Nianshenghong Electronics Co., Ltd.; the photoelectric sensor 24 can be PZ-M51 models manufactured by Shenzhen Chenying Electromechanical Equipment Co., Ltd.; and the defect detector 27 can be a sorting machine for detecting surface defects of workpieces manufactured by Shenzhen Siputek Technology Co., Ltd. It should be noted that the equipment models can be flexibly changed in actual use scenarios. Therefore, the examples in the embodiments are only examples and not limitations.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully automated assembly line for keyboard key scissor-switch pins, characterized in that: It includes an outer shearing and pressing device (1), an inner shearing and pressing device (2), an inner and outer shearing and pressing device (3), and a shear foot mounting base plate (4) arranged in sequence. The external shearing and cutting device (1) includes an external shearing plate (7), and a first laser positioning transmitter (701) is embedded in the bottom of the external shearing plate (7). The internal shearing and cutting device (2) includes an internal shearing plate (10), and a second laser positioning transmitter (101) is embedded in the bottom of the internal shearing plate (10). A transmission belt (12) is provided through the external shearing and pressing device (1), the internal shearing and pressing device (2), and the internal and external shearing and pressing device (3). Multiple bearing plates (13) are placed on the transmission belt (12). A positioning post (14) is fixedly provided at both ends of the bearing plate (13). A first laser positioning receiver (141) is embedded in the top of the positioning post (14). Multiple assembly auxiliary blocks (15) are fixedly provided between the two positioning posts (14) of the bearing plate (13). The assembly auxiliary block (15) is provided with an opening (151), an oblique hole (152), a groove (153), an airflow hole (154), a mounting groove (155), and an inlet / outlet (156). The assembly auxiliary block (15) is hollow, and a third hydraulic cylinder (16) is fixedly installed inside it. A lifting block (17) is fixedly installed on the piston rod of the third hydraulic cylinder (16). A transverse air blowing channel (171) is provided in the lifting block (17). The side of the lifting block (17) The third laser positioning transmitter (18) is embedded in the lifting block (17), and the air guide pipe (19) is embedded in the lifting block (17) to connect the air blowing channel (171). The air guide pipe (19) is connected to the fan (21) through the air inlet pipe (20). The assembly auxiliary block (15) has a collection basket (22) in the inner cavity below the inclined hole (152). The inner wall of the collection basket (22) is provided with an adhesive layer (23). The photoelectric sensor (24) is fixedly installed in the groove (153). A support rod (26) is fixedly installed on the top surface of the assembly auxiliary block (15), a defect detector (27) is fixedly installed on the support rod (26), a fourth hydraulic cylinder (28) is fixedly installed in the mounting groove (155), a baffle (29) is fixedly installed on the piston rod of the fourth hydraulic cylinder (28), a second laser positioning receiver (30) is embedded in the baffle (29), and a waste basket (31) is movably installed in the inner cavity of the assembly auxiliary block (15). An outer shear plate (36) and an inner shear plate (38) can be placed between the positioning posts (14) located on the same bearing plate (13). The outer shear plate (36) is provided with a plurality of outer shears (37), and the inner shear plate (38) is provided with a plurality of inner shears (39). A robotic arm (40) is provided between the inner and outer shearing and pressing device (3) and the shear foot mounting base plate (4) for transferring the shear foot. An aluminum plate (41) is placed on the shear foot mounting base plate (4).

2. The fully automated assembly line for keyboard key scissor-switch pins according to claim 1, characterized in that: A crossbeam (5) is provided above the external shearing and cutting device (1), the internal shearing and cutting device (2), and the internal and external shearing and pressing device (3). The external shearing and cutting device (1) also includes a first hydraulic cylinder (6), and the internal shearing and cutting device (2) includes a second hydraulic cylinder (9). The first hydraulic cylinder (6), the second hydraulic cylinder (9), and the robot (40) are all fixedly mounted on the crossbeam (5).

3. The fully automated assembly line for keyboard key scissor-switch pins according to claim 2, characterized in that: An external shearing plate (7) is fixedly installed on the piston rod of the first hydraulic cylinder (6), and a plurality of external cutting blades (8) are fixedly installed on the bottom of the external shearing plate (7).

4. The fully automated assembly line for keyboard key scissor-switch pins according to claim 2, characterized in that: An inner shearing plate (10) is fixedly installed on the piston rod of the second hydraulic cylinder (9), and a plurality of inner shearing cutters (11) are fixedly installed at the bottom of the inner shearing plate (10).

5. The fully automated assembly line for keyboard key scissor-switch pins according to claim 1, characterized in that: A compression spring (32) is connected between the bottom of the waste basket (31) and the inner bottom wall of the assembly auxiliary block (15). An alarm (33) is fixedly installed on the inner bottom wall of the assembly auxiliary block (15), and the alarm (33) can be activated by pressing down the waste basket (31).

6. The fully automated assembly line for keyboard key scissor-switch pins according to claim 1, characterized in that: A transparent observation window (34) is embedded in the side wall of the assembly auxiliary block (15).

7. The fully automated assembly line for keyboard key scissor-switch pins according to claim 1, characterized in that: A guide plate (35) is fixedly installed in the inner cavity of the assembly auxiliary block (15) to limit the up and down movement direction of the waste basket (31).

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