Assembly equipment for micro-tactile membrane switches

Abstract

The present invention discloses an assembly device for a micro-touch membrane switch, comprising a machine platform, wherein a first conveying channel is arranged on the upper side of the machine platform along the X-axis direction, a base material belt is arranged on the upper side of the first conveying channel, a reed assembly mechanism is arranged on the adjacent side of the front end of the first conveying channel, a positioning frame retracting and unreeling mechanism for conveying the positioning frame material belt along the Y-axis direction is arranged on one side of the reed assembly mechanism, a positioning frame material belt is arranged inside the positioning frame retracting and unreeling mechanism, a punching mechanism is arranged at the intersection of the positioning frame material belt and the base material belt, and a laser welding mechanism, a laser cutting mechanism and a positioning frame disassembly mechanism are arranged in sequence at the rear end of the first conveying channel. The present invention realizes the stable assembly welding and reinforcement function of the product by designing a set of assembly laser welding and laser cutting product processes with the positioning frame as the core. The various functional indicators of the product project fully meet customer requirements and realize large-scale automated production.

Description

Technical Field

[0001] The present invention relates to the field of assembly of small and micro tactile membrane switches, and in particular to an assembly device for a micro tactile membrane switch. Background Art

[0002] Tactile membrane switches, also known as pushbutton switches, were originally called sensitive switches. When in use, pressure is applied in the direction of the switch's operation to ensure the required operating force, closing the switch. Removing the pressure disconnects the switch. Its internal structure relies on the force applied to a metal spring to achieve on / off switching. A tactile membrane switch consists of an insert, base, spring, button, and cover. Waterproof tactile switches feature a polyimide film over the spring. Tactile switches offer advantages such as low contact resistance, precise operating force tolerance, and a wide variety of specifications. They are widely used in electronic devices and white goods, including audio and video products, digital products, remote controls, communications products, home appliances, security products, toys, computers, fitness equipment, medical devices, banknote detectors, laser pointers, and more. Because tactile switches are sensitive to environmental conditions, large equipment and high-load buttons, such as medical equipment and TV remote controls, often use conductive rubber or pot switches as direct metal springs.

[0003] In order to realize the various product functions of the related products, this joint positioning frame fixed assembly laser welding equipment is proposed. Currently, there is no similar professional equipment in the industry. Summary of the Invention

[0004] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides an assembly device for a micro-tactile membrane switch.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an assembly device for a micro-touch membrane switch, comprising a machine platform, wherein a first conveying channel for conveying a base material strip is arranged on the machine platform along the X-axis direction, and a feeding motor for driving the base material strip to move forward is arranged on the first conveying channel, a reed assembly mechanism is arranged on the adjacent side of the front end of the first conveying channel, and a positioning frame retracting and unloading mechanism for conveying a positioning frame material strip along the Y-axis direction is arranged on one side of the reed assembly mechanism, a punching mechanism is arranged at the intersection of the positioning frame material strip and the base material strip, and a laser welding mechanism, a laser cutting mechanism and a positioning frame disassembly mechanism are sequentially arranged at the rear end of the first conveying channel.

[0006] More specifically, the reed assembly mechanism has multiple groups, including a vibrating feed tray, a material receiving seat is provided at one end of the output track of the vibrating feed tray, an intermediate positioning seat is provided on one side of the material receiving seat, a material channel positioning seat is provided on one side of the intermediate positioning seat, and an assembly robot is provided on one side of the vibrating feed tray.

[0007] More specifically, the material channel positioning seat is fixedly installed on the upper side of the first conveying material channel, and the assembly robot includes two groups of suction nozzle arrays that can move along the Y-axis direction and the Z-axis direction.

[0008] More specifically, the positioning frame material collecting and unloading mechanism includes a positioning frame material discharging shaft and a positioning frame material collecting shaft respectively arranged on both sides of the first conveying channel.

[0009] More specifically, the punching mechanism includes a punching positioning seat fixedly installed on the first conveying channel, an array of punching knife through holes that pass through the upper and lower parts along the Z-axis direction is arranged inside the punching positioning seat, a Y-axis material channel for the positioning frame material strip to pass through is arranged inside the punching positioning seat along the Y-axis direction, an X-axis material channel for the base material strip to pass through is arranged between the punching positioning seat and the first conveying channel, and a punching knife array that can move up and down is arranged on the upper side of the punching positioning seat.

[0010] More specifically, the punching positioning seat is fixedly installed on the upper side of the first conveying channel, and a pair of left and right guide pillars are respectively provided on both sides of the first conveying channel. A punching knife driving cylinder is provided on the upper side of the left and right guide pillars, and the lower side of the punching knife driving cylinder is driven and connected to a punching knife fixing seat. The punching knife array is installed on the lower side of the punching knife fixing seat, and the punching knife fixing seat is slidably set on the outside of the left and right guide pillars.

[0011] More specifically, the positioning frame disassembly mechanism includes a lifting device and a material moving device, the lifting device includes a top knife driving cylinder, the top knife driving cylinder drives a top knife array connected along the Z-axis direction, the material moving device includes a Y-axis driving cylinder, the Y-axis driving cylinder drives a Y-axis mounting seat to move back and forth along the Y-axis direction, the Y-axis mounting seat is provided with a Z-axis driving cylinder, the Z-axis driving cylinder drives a Z-axis mounting seat to move up and down along the Z-axis direction, the Z-axis mounting seat is provided with a Z-axis material picking knife cylinder, the Z-axis material picking knife cylinder drives a Z-axis material picking knife array to move up and down along the Z-axis direction.

[0012] More specifically, a welding positioning block and a cutting positioning block are respectively provided below the laser welding mechanism and the laser cutting mechanism, and the welding positioning block and the cutting positioning block are fixedly installed on the first conveying channel.

[0013] More specifically, a channel pressure strip is provided on the first conveying channel.

[0014] More specifically, the output shaft of the feeding motor is connected to the material transfer roller, and the outer side of the material transfer roller is provided with equally spaced protrusions, and the base material strip is provided with equally spaced positioning holes. The feeding motor drives the material transfer roller to rotate, and the protrusions are embedded in the positioning holes. When the roller rotates, the base material strip is driven to move linearly.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention realizes stable assembly, welding and cutting functions of the product by designing a set of assembly laser welding and laser cutting product processes with the positioning frame as the core. The various functional indicators of the product project can fully meet customer requirements and realize large-scale fully automatic assembly line production with high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the reed assembly mechanism, the positioning frame material retracting and releasing mechanism, and the punching mechanism;

[0018] Figure 2 It is a structural diagram of the reed assembly mechanism;

[0019] Figure 3 It is a structural diagram of the punching mechanism;

[0020] Figure 4 It is a structural diagram of the punching positioning seat;

[0021] Figure 5 It is a structural diagram of the laser welding mechanism, laser cutting mechanism, and positioning frame removal mechanism;

[0022] Figure 6 This is one of the structural diagrams of the positioning frame removal mechanism;

[0023] Figure 7 This is the second structural diagram of the positioning frame disassembly mechanism.

[0024] Figure 8 This is one of the assembly flow charts of the present invention;

[0025] Figure 9 This is the second assembly flow chart of the present invention;

[0026] Figure 10 This is the third assembly flow chart of the present invention;

[0027] Figure 11 This is the fourth assembly flow chart of the present invention;

[0028] Figure 12 This is the fifth assembly flow chart of the present invention. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-7 , an assembly device for a micro-touch membrane switch includes a machine platform 1, a first conveying channel 2 is provided on the upper side of the machine platform 1 along the X-axis direction, a feeding motor 821 is provided on the first conveying channel 2, a base material belt 11 is provided on the upper side of the first conveying channel 2, a reed assembly mechanism 3 is provided on the front adjacent side of the first conveying channel 2, a positioning frame receiving and unloading mechanism 4 for conveying the positioning frame material belt 112 along the Y-axis direction is provided on one side of the reed assembly mechanism 3, a positioning frame material belt is provided inside the positioning frame receiving and unloading mechanism 4, a punching mechanism 5 is provided at the intersection of the positioning frame material belt 112 and the base material belt 11, and a laser welding mechanism 6, a laser cutting mechanism 7 and a positioning frame disassembly mechanism 8 are provided in sequence at the rear end of the first conveying channel 2, the laser welding mechanism 6 is used for welding, the laser cutting mechanism 7 is used for cutting, and the positioning frame disassembly mechanism 8 is used to remove the positioning frame 113 from the base 111.

[0031] See also Figure 1 and 2 , the reed assembly mechanism 3 has three groups, including a vibrating feeding tray 31, a receiving seat 32 is provided at one end of the output track of the vibrating feeding tray 31, an intermediate positioning seat 33 is provided on one side of the receiving seat 32, and a material channel positioning seat 34 is provided on one side of the intermediate positioning seat 33. An assembly robot 35 is provided on one side of the vibrating feeding tray 31, and the material channel positioning seat 34 is fixedly installed on the upper side of the first conveying material channel 2. The assembly robot 35 includes two groups of suction nozzle arrays 36 that can move along the Y-axis and the Z-axis. Working principle: the reed is placed on the vibrating feeding tray 31 for feeding, and the reed moves along the output track to the corresponding positioning blind hole on the receiving seat 32. Two groups of suction nozzle arrays 36 come over, and one group The suction nozzle array moves down and sucks the reed in the receiving seat 32, and randomly places it in the positioning blind hole on the intermediate positioning seat 33. Then the two groups of suction nozzle arrays 36 come over again, one group of suction nozzle array sucks the reed on the intermediate positioning seat 33, and the other group of suction nozzle array sucks the reed on the receiving seat 32. When the two groups of suction nozzle arrays 36 move again, one group of suction nozzle array moves the reed from the intermediate positioning seat 33 to the material channel positioning seat 34, and places the reed just into the base of the base material belt 11 through the positioning hole on the material channel positioning seat 34. The other group of suction nozzle array synchronously moves the reed from the receiving seat 32 to the intermediate positioning seat 33 for positioning, which is convenient for the next reed loading operation;

[0032] See also Figure 1 The positioning frame material collecting and unloading mechanism 4 includes a positioning frame material discharging shaft 41 and a positioning frame material collecting shaft 42 respectively arranged on both sides of the first conveying channel 2. The positioning frame material discharging shaft 41 is used to place the positioning frame material strip 112 that has not been punched, and the positioning frame material collecting shaft 42 is used to recycle the positioning frame material strip 112 that has been punched.

[0033] See also Figure 1-4The punching mechanism 5 includes a punching positioning seat 51, which is fixedly mounted on the upper side of the first conveying channel 2. A plurality of punching knife through-hole arrays 52 are provided in the punching positioning seat 51 along the Z-axis direction, and a Y-axis material channel 53 for the positioning frame material belt 112 to pass through is provided in the punching positioning seat 51 along the Y-axis direction. An X-axis material channel 54 for the base material belt to pass through is provided between the punching positioning seat 51 and the first conveying channel 2. A punching knife array 55 that can move up and down is provided on the upper side of the punching positioning seat 51. A pair of left and right guide pillars 56 are provided on both sides of the first conveying channel 2, and a punching knife driving air supply is provided on the upper side of the left and right guide pillars 56. Cylinder 57, a punching knife fixed seat 58 is installed on the lower side of the punching knife driving cylinder 57, and the punching knife array 55 is installed on the lower side of the punching knife fixed seat 58, and the punching knife fixed seat 58 is slidably set on the outside of the left and right guide columns 56; Working principle: the positioning frame material strip 112 and the base material strip 11 form an intersection in the punching positioning seat 51 from the Y-axis direction and the X-axis direction respectively, and the positioning frame material strip 112 is located above the base material strip 11. At this time, the punching knife driving cylinder 57 drives the punching knife array 55 to press down in the punching knife through hole array 52, so that the single product (press point 114 + white film + positioning frame 113) on the positioning frame material strip 112 is separated from the material strip and assembled on the base.

[0034] See also Figure 1 、 5 , 6 and 7, the positioning frame disassembly mechanism 8 includes an upper push device and a material moving device, the upper push device includes a top knife driving cylinder 811, a top knife array 812 is installed on the lower side of the top knife driving cylinder 811, the top knife driving cylinder 811 can make the top knife array 812 move up and down, the material moving device includes a Y-axis driving cylinder (not shown in the figure), the Y-axis driving cylinder drives a Y-axis mounting seat 822 to move back and forth along the Y-axis direction, a Z-axis driving cylinder 823 is provided on one side of the Y-axis mounting seat 822, a Z-axis driving cylinder 823 is installed on one side of the Z-axis mounting seat 824, a Z-axis material picking knife cylinder 825 is provided on one side of the Z-axis mounting seat 824, and a Z-axis material picking knife cylinder 825 is provided on one side of the Z-axis material picking knife cylinder 825 A Z-axis material picking knife array 826 is installed on the side, and the Z-axis material picking knife cylinder 825 can make the Z-axis material picking knife array 826 slide up and down relative to the Z-axis mounting seat 824. The principle of removing the positioning frame is: the top knife array 812 rises and abuts the positioning frame on the bottom belt material belt, and at the same time, the Z-axis material picking knife array 826 presses down and abuts the base inside the positioning frame, so that the two move synchronously relative to each other, so that the positioning frame and the base are separated, and at the same time, the positioning frame moves to the material picking knife, and then the material picking knife is lifted up, taking the positioning frame with it, and then the material picking knife moves along the Y-axis direction, and then the Z-axis material picking knife cylinder 825 drives the Z-axis material picking knife array 826 to move up, and the positioning frames on the Z-axis material picking knife array 826 fall down one after another.

[0035] The entire assembly principle and process: The assembly process of the micro touch membrane switch is as follows: Figure 8-12, the first step: the reed assembly mechanism 3 is used to align the reed 110 and place it into the corresponding base 111 on the base strip 11, the second step: the base strip 11 with the reed 110 placed is transferred to the bottom of the punching mechanism 5, the third step: the punching mechanism 5 is started, the whole product (press point 114 + white film + positioning frame 113) on the positioning frame strip 112 is punched and fitted to the outside of the base 111 ( Figure 10 and Figure 11 The positioning frames are covered with white film. In order to make it easier to see the internal structure, the white film is not shown in the figure). Step 4: The laser welding mechanism 6 performs laser welding reinforcement on the white film on the base 111 and the positioning frame 113 (mainly to combine the white film with the base), and then uses the laser cutting mechanism 7 to cut the white film to separate the white film on the positioning frame and the white film on the base. Step 5: The cut product is transferred to the positioning frame removal mechanism 8, and the positioning frame 113 is removed to form an assembled switch product 115, completing the fully automatic assembly line assembly process of the entire micro-touch membrane switch. In this solution, all electrical equipment is powered by an external power supply.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An assembly device for a micro-tactile membrane switch, comprising a machine (1), characterized in that: The machine (1) is provided with a first conveying channel (2) for conveying a base material strip (11) along the X-axis direction, and a feeding motor (821) for driving the base material strip (11) to move forward is provided on the first conveying channel (2), a spring assembly mechanism (3) is provided on the adjacent side of the front end of the first conveying channel (2), and a positioning frame retracting and unloading mechanism (4) for conveying a positioning frame material strip (112) along the Y-axis direction is provided on one side of the spring assembly mechanism (3), a punching mechanism (5) is provided at the intersection of the positioning frame material strip (112) and the base material strip (11), and a laser welding mechanism (6), a laser cutting mechanism (7) and a positioning frame disassembly mechanism (8) are provided in sequence at the rear end of the first conveying channel (2); The spring assembly mechanism (3) has multiple groups, including a vibrating feeding tray (31), a material receiving seat (32) is provided at one end of the output track of the vibrating feeding tray (31), an intermediate positioning seat (33) is provided on one side of the material receiving seat (32), a material channel positioning seat (34) is provided on one side of the intermediate positioning seat (33), and an assembly robot (35) is provided on one side of the vibrating feeding tray (31); The material channel positioning seat (34) is fixedly installed on the upper side of the first conveying material channel (2), and the assembly robot (35) includes two groups of suction nozzle arrays (36) that can move along the Y-axis direction and the Z-axis direction; The positioning frame material discharging and receiving mechanism (4) comprises a positioning frame material discharging rotating shaft (41) and a positioning frame material receiving rotating shaft (42) respectively arranged on both sides of the first conveying channel (2); The punching mechanism (5) includes a punching positioning seat (51) fixedly mounted on the first conveying channel (2), an array of punching knife through holes (52) extending vertically along the Z-axis direction is provided inside the punching positioning seat (51), a Y-axis material channel (53) for the positioning frame material strip (112) to pass through is provided inside the punching positioning seat (51) along the Y-axis direction, an X-axis material channel (54) for the base material strip (11) to pass through is provided between the punching positioning seat (51) and the first conveying channel (2), and a punching knife array (55) movable vertically is provided on the upper side of the punching positioning seat (51); The punching positioning seat (51) is fixedly mounted on the upper side of the first conveying channel (2), and a pair of left and right guide pillars (56) are respectively provided on both sides of the first conveying channel (2), and a punching knife driving cylinder (57) is provided on the upper side of the left and right guide pillars (56), and the lower side of the punching knife driving cylinder (57) is driven and connected to a punching knife fixing seat (58), and the punching knife array (55) is mounted on the lower side of the punching knife fixing seat (58), and the punching knife fixing seat (58) is slidably arranged on the outer sides of the left and right guide pillars (56); The positioning frame disassembly mechanism (8) includes a lifting device and a material moving device, the lifting device includes a top knife driving cylinder (811), the top knife driving cylinder (811) drives a top knife array (812) connected along the Z-axis direction, the material moving device includes a Y-axis driving cylinder, the Y-axis driving cylinder drives a Y-axis mounting seat (822) to move back and forth along the Y-axis direction, the Y-axis mounting seat (822) is provided with a Z-axis driving cylinder (823), the Z-axis driving cylinder (823) drives a Z-axis mounting seat (824) to move up and down along the Z-axis direction, the Z-axis material picking knife cylinder (825) is provided on the Z-axis mounting seat (824), and the Z-axis material picking knife cylinder (825) drives a Z-axis material picking knife array (826) to move up and down along the Z-axis direction.

2. The assembly equipment for a micro-tactile membrane switch according to claim 1, characterized in that: A welding positioning block and a cutting positioning block are respectively provided below the laser welding mechanism (6) and the laser cutting mechanism (7), and the welding positioning block and the cutting positioning block are fixedly mounted on the first conveying channel (2).

3. The assembly equipment for a micro-tactile membrane switch according to claim 2, characterized in that: A conveying channel strip is provided on the first conveying channel (2).

4. The assembly equipment for a micro-tactile membrane switch according to claim 3, characterized in that: The output shaft of the feeding motor (821) is connected to a material transfer roller, and the outer side of the material transfer roller is provided with raised portions distributed at equal intervals.

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