Automatic assembling machine of touch switch

Abstract

The invention relates to the technical field of light touch switch production, in particular to an automatic assembling machine of a light touch switch, which is characterized in that a contact piece feeding station, a button feeding station, an upper cover feeding station, a discharging station, a base feeding station and a turntable assembly are fixed on the top surface of a main frame body; the base feeding work station, the contact piece feeding work station, the button feeding work station, the upper cover feeding work station and the discharging work station are sequentially and evenly arranged in the circumferential direction of the rotary disc assembly. And a plurality of jigs are uniformly distributed on the turntable assembly. When the automatic feeding and assembling machine is used, feeding and assembling of the upper cover, the silica gel button and the contact piece which are tightly pressed between the bases can be automatically completed, the feeding efficiency is improved to a great extent, and the labor intensity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of touch switch production, and in particular to an automatic assembly machine for touch switches. Background Art

[0002] like Figure 1 As shown, the touch switch 1 is mainly composed of an outer shell composed of an upper cover 101 and a base 104, and a silicone button 102 and a contact piece 103 arranged inside the outer shell.

[0003] The existing tact switch assembly method is: after positioning the base 104, manually insert the punched contact piece 103 and the silicone button 102 in sequence, and then press the upper cover 101 to fix it on the base 104. When pressing the upper cover 101, the upper cover 101 and the base 104 are connected into an integrated structure by using the buckle position between the upper cover 101 and the base 104; and the upper cover 101 presses the silicone button 102 and the contact piece 103 to position them on the upper base 104. The assembly of this tact switch is completely manual, with high labor intensity and low assembly efficiency. Summary of the invention

[0004] The object of the present invention is to provide an automatic assembly machine for touch switches in view of the defects and shortcomings of the prior art.

[0005] To achieve the above object, the technical solution adopted by the present invention is: The automatic assembly machine of a touch switch described in the present invention comprises a main frame; a contact piece loading station, a button loading station, an upper cover loading station, a discharging station, a base loading station and a turntable assembly are fixed to the top surface of the main frame; the base loading station, the contact piece loading station, the button loading station, the upper cover loading station and the discharging station are evenly arranged in sequence along the circumferential direction of the turntable assembly; and a plurality of jigs are evenly distributed on the turntable assembly.

[0006] Furthermore, the contact piece loading station includes a fixed bracket fixed on the main frame, and a contact piece forming assembly arranged on the fixed bracket; the contact piece forming assembly includes a lower mold arranged on the fixed bracket; a material strip guide plate is arranged on the surface of the fixed bracket; a material strip guide groove is arranged on the bottom surface of the material strip guide plate; one end of the material strip guide groove is connected to the lower mold; a material strip unwinding mechanism is arranged on the main frame; and a material pulling assembly is arranged on the fixed bracket.

[0007] Furthermore, the material pulling assembly includes a hook pushing cylinder with one end fixed on a fixed bracket, a straight guide rail fixed on the fixed bracket and a slider slidably connected to the straight guide rail; a hook material sliding block is fixed on the slider; the other end of the hook pushing cylinder is fixed on the hook material sliding block; a rocker arm limiting groove is provided at the bottom of the hook material sliding block; a hook material rocker arm is provided inside the rocker arm limiting groove; one end of the hook material rocker arm is hinged to the hook material sliding block through a hinge shaft; a hook tip is provided on the bottom surface of the other end of the hook material rocker arm; a wedge-shaped surface is provided on the hook tip between the surface facing the contact forming assembly and the bottom surface of the hook tip; a hook groove connected to the strip guide groove is provided on the top surface of the strip guide plate; the hook tip extends into the strip guide groove after passing through the hook groove.

[0008] Furthermore, the gap between adjacent punching holes on the material strip is the first gap; there are at least two molding cavities arranged on the lower mold; the molding cavities are evenly arranged along the length direction of the material strip guide groove; the spacing between two adjacent molding cavities is the second gap; the second gap is N times the first gap.

[0009] Furthermore, the second gap is any one of twice, three times, and four times the first gap.

[0010] Furthermore, the number of the molding cavities is four; and the second gap is twice the size of the first gap.

[0011] Furthermore, a front stopper and a rear stopper are fixed on the fixed bracket; the front stopper and the rear stopper are respectively arranged on both sides of the hook material sliding block; a lifting sliding groove is arranged at the bottom of the fixed bracket; the lifting sliding groove is arranged between the front stopper and the rear stopper; a lower limit stopper bar is slidably connected in the lifting sliding groove; a lower limit cylinder is connected between the fixed bracket and the lower limit stopper bar; buffers are arranged at the positions of the hook material sliding block facing the front stopper and the hook material sliding block facing the rear stopper.

[0012] Furthermore, the button loading station includes a lifting assembly and a material seat body; a sliding groove is provided on the material seat body; a first sliding bar is slidably connected to the sliding groove; through holes are provided on the first sliding bar and the material seat body; a lifting seat body is connected to the lifting assembly; a push rod is connected to the lifting seat body; a second spring is connected between the material seat body and the first sliding bar; a first cam seat is fixed on the lifting seat body; the first sliding bar is rotatably connected to the first follower wheel; both ends of the second spring are pressed tightly on the material seat body and the first sliding bar; the wheel body of the first follower wheel is pressed tightly against the surface of the first cam seat; a conical hole is provided at the bottom of the push rod; the diameter of the conical hole gradually decreases along the height direction.

[0013] Furthermore, the discharging station includes a jig, a material discharge trough arranged at the bottom end of the jig and a clamping assembly arranged above the jig; a second sliding groove is arranged inside the jig; a second sliding bar is slidably connected inside the second sliding groove; a second discharge hole penetrating the upper and lower sides of the jig is arranged on the surface of the jig; the second discharge hole is connected to the second sliding groove; the second sliding bar is provided with a first discharge hole penetrating the upper and lower sides of the second sliding bar; the clamping assembly is used to push the second sliding bar to slide in the second sliding groove; a storage box is arranged at the end of the material discharge trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded view of a touch switch; Figure 2 is a top view of the present invention; Figure 3 is a stereogram of the present invention; Figure 4 It is a structural diagram of the button loading station after connecting the vibration plate and the straight vibration guide rail; Figure 5 This is the structural diagram of the button loading station; Figure 6 It is a cross-sectional view of the button loading station; Figure 7 This is a structural diagram of the connection between the straight pipe and the top rod; Figure 8 It is the structural diagram of the lower lifting seat; Fig. 9 This is the structural diagram of the contact piece loading station; Fig.10 It is a structural diagram of the material drawing component connecting the die; Fig.11 It is a structural diagram of the material pulling assembly; Fig.12 is a cross-sectional view of the connection between the hook material sliding block and the hook material swing rod; Fig.13 It is a three-dimensional diagram of the connection between the hook material sliding block and the hook material swing rod; Fig.14 It is a structural diagram of the material belt guide plate; Fig.15 It is a structural diagram of the connection between the turntable assembly and the fixture; Fig.16 It is the structural diagram of the lower die; Fig.17 It is a structural diagram of the first, third, fifth and seventh forming positions of the strip after being punched out; Fig.18 It is a diagram showing the alignment of the second, fourth, sixth and eighth molding positions of the material strip with the four molding cavities; Fig.19 It is the structural diagram of the discharging station; Fig. 20 This is a schematic diagram of the structure of the discharging station after the discharging chute and storage box are removed; Fig.21 It is a structural diagram of the opening clamp assembly; Fig. 22 It is a structural diagram of the connection between the sliding bar, the fixture and the pressure rod; Fig.23 It is the structural diagram of the fixture; Fig.24 It is the structural diagram of the slider; Fig.25 It is the structural diagram of the lifting seat; Fig.26 This is the structural diagram of the base loading station; Fig. 27 It is a structural diagram of the positioning component; Description of reference numerals: 1. Touch switch; 101. Upper cover; 102. Silicone button; 103. Contact piece; 104. Base; 2. Contact piece loading station; 201. Lower limit cylinder; 202. Lower limit stop bar; 203. Material belt guide plate; 20301. Material belt guide groove; 20302. Overhook groove; 204. Hook swing rod; 20401. Hook tip; 2040101. Wedge surface; 205. Hook push cylinder; 206. Hook sliding block; 20601. Rocker limit groove; 207. Contact piece molding assembly; 208. Fixed bracket; 209. Lower mold; 20901. Molding cavity; 2010 , front block; 2011, rear block; 2012, straight guide rail; 2013, slider; 2014, hinge shaft; 2015, buffer; 3, button loading station; 301, lifting assembly; 30101, lifting fixed seat; 302, first spring; 303, upper lifting seat; 30301, movable cavity; 304, lower lifting seat; 30401, limiting hole; 30402, lifting guide hole; 30403, fixing rod; 305, first follower wheel; 306, first cam seat; 307, material seat body; 308, ejector rod; 30801, connecting block; 30802, first a sliding groove; 30803, a tapered hole; 309, a straight pipe; 30901, an air source connector; 3010, a first sliding bar; 3011, a first straight vibration guide rail; 3012, a first vibration plate; 3013, a second spring; 4, a material strip unwinding mechanism; 5, a main frame; 6, an upper cover loading station; 7, a material discharging station; 701, a discharging cylinder; 702, a guide shaft; 703, a guide sleeve; 704, a lifting seat; 70401, a positioning hole; 705, a second cam seat; 706, a second sliding bar; 70601, a first discharging hole; 707, a fixture; 70701, a connecting seat ;70702, second discharge hole;70703, second sliding groove;708, pressure rod;709, third spring;7010, second follower wheel;7011, storage box;7012, discharge trough;8, base loading station;801, second vibration plate;802, second straight vibration guide rail;803, positioning assembly;80301, material seat body;8030101, feed channel;8030102, feed positioning hole;80302, sliding baffle;8030201, discharge through hole;804, pressing assembly;9, material belt;901, punching hole;10, turntable assembly. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] like Figures 1 to 27As shown, the automatic assembly machine of a touch switch of the present invention comprises a main frame 5; a contact piece loading station 2, a button loading station 3, an upper cover loading station 6, a discharging station 7, a base loading station 8 and a turntable assembly 10 are fixed on the top surface of the main frame 5; the base loading station 8, the contact piece loading station 2, the button loading station 3, the upper cover loading station 6 and the discharging station 7 are uniformly arranged in sequence along the circumferential direction of the turntable assembly 10; a plurality of jigs 707 are evenly distributed on the turntable assembly 10; The upper cover loading station 6 and the base loading station 8 are essentially the same as the prior art, so they are not described in detail; the upper cover loading station 6 and the base loading station 8 are both composed of a second vibration plate 801, a second straight vibration guide rail 802, a positioning assembly 803 and a pressing assembly 804; the positioning assembly 803 is a fixture structure, which is composed of a material seat body 80301 and a sliding stop bar 80302; wherein the material seat body 80301 is provided with a feeding channel 8 connected to the second straight vibration guide rail 802 030101; the end of the feed channel 8030101 is connected with a feed positioning hole 8030102 that passes through the upper and lower ends of the material seat body 80301; the sliding stop bar 80302 is provided with a feed through hole 8030201; the workpiece moves from the second vibration plate 801 to the base 104 one by one on the second straight vibration guide rail 802 and then enters the feed positioning hole 8030102 from the feed channel 8030101; the initial state feed positioning hole 8030102 and the lower The material through hole 8030201 is misaligned, and the base 104 on the feed positioning hole 8030102 is placed on the surface of the sliding stop bar 80302; then the pressing component 804 is started and drives the sliding stop bar 80302 to move horizontally, so that the feed positioning hole 8030102 is aligned with the material discharge through hole 8030201, and the pressing component 804 inserts the base 104 in the feed positioning hole 8030102 through the material discharge through hole 8030201 into the treatment below. Similarly, the vibration plate of the upper cover loading station 6 transports the upper covers 101 one by one on the straight vibration guide rail to the positioning assembly for positioning, and then when the lower pressing assembly is pressed down, the switch of the positioning assembly is turned on, and the lower pressing assembly pushes the upper cover from the through hole of the positioning assembly into the fixture 707 below; the positioning assembly of the upper cover loading station 6 and the positioning assembly 803 of the base loading station 8 have the same structure; the turntable assembly 10 can drive the fixture 707 to transfer between various stations; In the first step, the base loading station 8 feeds the base 104 into the fixture 707 on the turntable assembly 10; In the second step, the turntable assembly 10 drives the fixture 707 equipped with the base 104 to move to the bottom of the contact sheet feeding station 2, and the contact sheet 103 is fed into the base 104 of the fixture 707 through the contact sheet feeding station 2; In the third step, the turntable assembly 10 drives the jig 707 equipped with the contact sheet 103 and the base 104 to be transported to the button loading station 3; the button loading station 3 feeds the silicone button 102 into the base 104 and places it on the surface of the contact sheet 103; In the fourth step, the turntable assembly 10 drives the jig 707 equipped with the silicone button 102, the contact piece 103 and the base 104 to be transported to the upper cover loading station 6. The upper cover loading station 6 presses the upper cover 101 down on the base 104, and makes the upper cover 101 and the base 104 snap-fit. The upper cover 101 presses the silicone button 102 and the contact piece 103 on the base 104 to position them, and the assembly of the touch switch 1 is completed; In the fifth step, the turntable assembly 10 drives the fixture 707 equipped with the touch switch 1 to be transported to the unloading station 7, and the material in the fixture 707 is discharged through the unloading station 7; In this structure, the loading and assembly of the upper cover 101, the silicone button 102, and the contact sheet 103 pressed between the base 104 can be automatically completed, which greatly improves the loading efficiency and reduces the labor intensity.

[0017] As a preferred embodiment of the present invention, the contact sheet loading station 2 includes a fixed bracket 208 fixed on the main frame body 5, and a contact sheet forming component 207 arranged on the fixed bracket 208; the contact sheet forming component 207 includes a lower mold 209 arranged on the fixed bracket 208; the surface of the fixed bracket 208 is provided with a material strip guide plate 203; the bottom surface of the material strip guide plate 203 is provided with a material strip guide groove 20301; one end of the material strip guide groove 20301 is connected to the lower mold 209; the main frame body 5 is provided with a material strip unwinding mechanism 4; the fixed bracket 208 is provided with a material pulling component; The width of the material belt guide groove 20301 is equal to the width of the material belt 9, and the material belt 9 is guided by the material belt guide groove 20301; The material strip unwinding mechanism 4 is essentially the same as the prior art, so it is not described in detail; the contact piece forming assembly 207 is a set of continuous punching dies for forming the contact piece 103, which is essentially the same as the prior art continuous punching dies, so it is not described in detail; the material strip 9 unwound by the material strip unwinding mechanism 4 is fed into between the upper die and the lower die 209; the material strip 9 is formed into the contact piece 103 through the upper die cooperating with the lower die 209 and the contact piece 103 is punched out from the material strip 9, and the punched contact piece 103 is pushed downward out of the lower die 209 by the upper die, and finally fed into the base 104; the material pulling assembly pulls the material strip 9 to a specified length; the contact piece 103 is formed into the contact piece 103 by utilizing the blanking during punching and pressing it into the base 104 for installation, thereby simplifying the contact piece installation process and improving the contact piece installation efficiency.

[0018] As a preferred embodiment of the present invention, the material pulling assembly includes a hook pushing cylinder 205 with one end fixed on a fixed bracket 208, a straight guide rail 2012 fixed on the fixed bracket 208, and a slider 2013 slidably connected to the straight guide rail 2012; a hook material sliding block 206 is fixed on the slider 2013; the other end of the hook pushing cylinder 205 is fixed on the hook material sliding block 206; a swing rod limiting groove 20601 is provided at the bottom of the hook material sliding block 206; a hook material swing rod 204 is provided inside the swing rod limiting groove 20601; one end of the hook material swing rod 204 is connected to the hook material sliding block 206 by a swing rod limiting groove 20601; a hook material swing rod 204 is provided with a swing rod 204 at one end; a hook material swing rod 204 is connected to the hook material sliding block 206 by a swing rod limiting groove 20601 ... The hinge shaft 2014 is hinged on the hook material sliding block 206; the bottom surface of the other end of the hook material swing rod 204 is provided with a hook tip 20401; the hook tip 20401 is provided with a wedge-shaped surface 2040101 between the surface facing the contact sheet forming component 207 and the bottom surface of the hook tip 20401; the top surface of the material strip guide plate 203 is provided with a hooking groove 20302 connected with the material strip guide groove 20301; the hook tip 20401 passes through the hooking groove 20302 and then extends into the material strip guide groove 20301; the hooking groove 20302 is used for the hook tip 20401 to extend; Due to its own gravity, the hook material swing rod 204 has a tendency to flip downward around the hinge shaft 2014. When pushing the material, the hook tip 20401 is inserted into the process hole of the material strip 9, and then the hook push cylinder 205 is started to drive the hook material sliding block 206 to slide on the straight guide rail 2012, so that the hook material sliding block 206 makes a straight line motion away from the contact piece forming component 207, and the surface of the hook tip 20401 away from the wedge surface 2040101 is pressed against the inner wall of the process hole of the material strip 9, and the material strip 9 overcomes the friction force of the side wall of the material strip guide groove 20301 to make a translational motion, thereby realizing the material pulling action; when the hook push cylinder 205 drives the hook material sliding block 206 to make a straight line motion in the direction close to the contact piece forming component 207 When the line moves, the wedge-shaped surface 2040101 applies a thrust to the side surface of the process hole of the material strip 9. At this time, the friction force of the material strip guide groove 20301 on the material strip 9 is greater than the horizontal component of force generated by the wedge-shaped surface 2040101 on the process hole, so that the hook swing rod 204 flips upward around the hinge shaft 2014 until the hook tip 20401 is loosened from the process hole, then the hook tip 20401 slides relative to the material strip 9 and resets. In this structure, the friction force of the hook tip 20401 and the wedge-shaped surface 2040101 combined with the material strip guide groove 20301 on the material strip 9 is used to enable the material strip 9 to be transported in a unidirectional and quantitative manner, thereby simplifying the feeding structure of the material strip. Moreover, when the material strip 9 is positioned, the hook tip 20401 is used for positioning, thereby improving the accuracy of blanking.

[0019] As a preferred embodiment of the present invention, the gap between adjacent punching holes 901 on the material strip 9 is the first gap; there are at least two molding cavities 20901 arranged on the lower mold 209; the molding cavities 20901 are evenly arranged along the length direction of the material strip guide groove 20301; the spacing between two adjacent molding cavities 20901 is the second gap; the second gap is N times the first gap.

[0020] As a preferred embodiment of the present invention, the second gap is any one of twice, three times, and four times the first gap.

[0021] As a preferred embodiment of the present invention, the number of the molding cavities 20901 is four; the second gap is twice the first gap; Figures 16 to 18 As shown, the first gap is L1, and the second gap is L2; ​​L2 is equal to twice L1, and the number of molding cavities 20901 is four, so the number of upper molds that cooperate with the molding cavities 20901 is also four; when the hook swing rod 204 pulls the material strip 9, the push hook cylinder 205 first drives the material strip 9 to move the distance of seven first gaps; so that the first, third, fifth and seventh molding positions of the material strip 9 are aligned with the molding cavities 20901; then, the first, third, fifth and seventh molding positions of the material strip 9 are aligned with the molding cavities 20901 through the cooperation of the upper mold and the molding cavities 20901. The material strip 9 is placed for punching and forming; then the push hook cylinder 205 first drives the material strip 9 to move a distance of the first gap, so that the second, fourth, sixth and eighth forming positions of the material strip 9 are aligned with the forming cavity 20901; the second, fourth, sixth and eighth forming positions of the material strip 9 are punched and formed by the cooperation of the upper mold and the forming cavity 20901; the order of each feeding is to first feed the material strip 9 for the distance of seven first gaps, and then for the distance of one first gap; in addition to improving the feeding efficiency, the forming efficiency can also be improved, so that the utilization rate of the material strip is maximized.

[0022] As a preferred embodiment of the present invention, a front block 2010 and a rear block 2011 are fixed on the fixed bracket 208; the front block 2010 and the rear block 2011 are respectively arranged on both sides of the hook material sliding block 206; a lifting sliding groove is arranged at the bottom of the fixed bracket 208; the lifting sliding groove is arranged between the front block 2010 and the rear block 2011; a lower limit stop bar 202 is slidably connected in the lifting sliding groove; a lower limit cylinder 201 is connected between the fixed bracket 208 and the lower limit stop bar 202; the hook material sliding block 206 is provided with a buffer 2015 at the position opposite to the front block 2010 and the hook material sliding block 206 is provided at the position opposite to the rear block 2011; The lower limit cylinder 201 can drive the lower limit stop bar 202 to rise and fall. When the lower limit stop bar 202 rises, it is just in the moving path of the hook material sliding block 206, blocking the hook material sliding block 206 from moving forward; when the lower limit stop bar 202 retracts, the hook material sliding block 206 can move between the front stop block 2010 and the rear stop block 2011; The buffer 2015 is used to buffer the impact force between the hook material sliding block 206 and the lower limit stop bar 202, the front stop block 2010 and the rear stop block 2011. There is no essential difference in the prior art, so it is not described in detail; the rear stop block 2011 is the reset point of the hook material sliding block 206; after the rear surface of the hook material sliding block 206 is attached to the rear stop block 2011, the hook material sliding block 206 is in a reset state, the lower limit stop bar 202 shrinks, and the hook material sliding block 206 is pushed from the hook material sliding block 206 by the push hook cylinder 205 until the hook material sliding block 206 contacts the surface of the front stop block 2010 and stops, then the hook material sliding block 206 travels seven first gaps. Then, when the hook material sliding block 206 is pulled back to the reset state, the lower limit stop bar 202 rises, so that the hook material sliding block 206 can only move between the lower limit stop bar 202 and the rear stop block 2011. The distance that the hook material sliding block 206 moves from the rear stop block 2011 to the lower limit stop bar 202 is a first gap, and the hook material sliding block 206 moves a first gap; the stroke of the hook material sliding block 206 is switched by raising and lowering the lower limit stop bar 202, and the hook material sliding block 206 slides at a fixed length in cooperation with the front stop block 2010 and the rear stop block 2011, thereby improving the conveying accuracy of the material belt 9.

[0023] As a preferred embodiment of the present invention, the button loading station 3 includes a lifting component 301 and a material seat body 307; a sliding groove is provided on the material seat body 307; a first sliding bar 3010 is slidably connected to the sliding groove; through holes are provided on the first sliding bar 3010 and the material seat body 307; a lifting seat body is connected to the lifting component 301; a push rod 308 is connected to the lifting seat body; a second spring 3013 is connected between the material seat body 307 and the first sliding bar 3010; a first cam seat 306 is fixed on the lifting seat body; the first sliding bar 3010 is rotatably connected to the first follower wheel 305; the two ends of the second spring 3013 are pressed against the material seat body 307 and the first sliding bar 3010; the wheel body of the first follower wheel 305 is pressed against the surface of the first cam seat 306; a conical hole 30803 is provided at the bottom of the push rod 308; the diameter of the conical hole 30803 gradually decreases along the height direction; In the initial state, the through hole of the first slide bar 3010 is offset from the through hole of the material holder body 307. The button enters the first straight vibration guide rail 3011 through the first vibration plate 3012, and then enters the through hole of the material holder body 307 from the end of the first straight vibration guide rail 3011, and is placed on the surface of the first slide bar 3010; the lifting assembly 301 drives the lifting seat body to descend, so that the push rod 308 begins to press on the button, and at the same time, the surface of the first cam seat 306 pushes the first follower wheel 305, so that the first slide bar 3010 slides in the material holder body 307. The through hole of the first slide bar 3010 is directly opposite to the through hole of the material seat body 307, and the button is pushed downward from the through hole of the first slide bar 3010 into the fixture below by the push rod 308; after the lifting seat body is reset, the elastic force of the second spring 3013 pushes the first slide bar 3010, so that the through hole of the first slide bar 3010 and the through hole of the material seat body 307 are re-displaced; in this structure, the unloading of the button and the sliding of the first slide bar 3010 both utilize the power of the lifting movement of the lifting component 301, which simplifies the power structure and makes the button loading station The volume is smaller; since the top of the button is a conical structure, a conical hole 30803 is provided at the bottom of the push rod 308, so that the push rod 308 can be automatically aligned with the button, thereby improving the feeding accuracy of the button; the lifting seat body is composed of an upper lifting seat 303 and a lower lifting seat 304 fixed on the upper lifting seat 303; the lower lifting seat 304 is provided with a lifting guide hole 30402 matching the push rod 308; the push rod 308 is slidably connected in the lifting guide hole 30402; the lifting assembly 301 is fixed on the upper lifting seat 303; The push rod 308 is provided with a sliding hole penetrating through the upper and lower ends of the push rod 308; a straight pipe 309 is slidably connected inside the sliding hole; a gas source connector 30901 is fixed to the top of the straight pipe 309; the straight pipe 309 is fixed to the upper lifting seat 303; the upper lifting seat 303 is provided with an active cavity 30301 connected to the lifting guide hole 30402; the push rod 308 is provided with a connecting block 30801; the connecting block 30801 is arranged in the active cavity 30301; the lifting assembly 301 is provided with a lifting fixed seat 30101; a first spring 302 is connected between the lifting fixed seat 30101 and the connecting block 30801; the first spring 302 makes the surface of the connecting block 30801 pressed against the inner bottom wall of the active cavity 30301; The air source connector 30901 is connected to an external air source; during the process of the lifting assembly 301 driving the lifting seat body to descend, the tapered hole 30803 is first sleeved on the button to position the button until the bottom end of the push rod 308 is pressed against the surface of the first sliding bar 3010; when the lifting seat body continues to descend, the push rod 308 is pushed upward by the first sliding bar 3010, and the push rod 308 overcomes the elastic force of the first spring 302 and moves upward relative to the lifting seat body and the straight tube 309; the end of the straight tube 309 fits on the top of the button, and the end of the straight tube 309 is sealed by the top of the button; the external air source causes the straight tube 309 to generate negative pressure, which adsorbs and fixes the button; the surface of the first cam seat 306 pushes the first follower wheel 305, so that the first sliding bar 3010 slides in the material seat body 307, so that the through hole of the first sliding bar 3010 is opposite to the through hole of the material seat body 307, and the button is adsorbed and fixed by the straight tube 309 After being fixed, the lifting seat body passes through the through hole of the first sliding bar 3010 and is sent to the fixture below. Finally, the straight tube 309 breaks the vacuum, separates the straight tube 309 from the button, and resets the lifting seat body. In this structure, the button can be kept in position when being transported downward, thereby improving the accuracy of loading. A first sliding groove 30802 is provided on the side wall of the push rod 308; a limiting hole 30401 is provided on the lower lifting seat 304; the limiting hole 30401 is connected with the lifting guide hole 30402; a fixing rod 30403 is fixed in the limiting hole 30401; the width of the first sliding groove 30802 is equal to the width of the fixing rod 30403; the end of the fixing rod 30403 passes through the first sliding groove 30802 and is inserted into the limiting hole 30401; the lifting and sliding stroke of the push rod 308 is limited by the first sliding groove 30802 and the fixing rod 30403. The number of the push rods 308 is at least two; the push rods 308 are evenly arranged along the sliding direction of the first sliding bar 3010; by setting up multiple push rods 308, the synchronous loading of multiple buttons can be achieved; the lifting component 301 is a cylinder; one end of the cylinder is fixed to the lifting fixed seat 30101, and the other end of the cylinder is fixed to the lifting seat body; a guide shaft is fixed on the lifting fixed seat 30101; and a sliding sleeve slidably connected to the guide shaft is provided on the lifting seat body, and the fixed lifting of the lifting seat body is achieved through the cooperation of the guide shaft and the sliding sleeve.

[0024] As a preferred embodiment of the present invention, the discharging station 7 includes a jig 707, a material discharge chute 7012 arranged at the bottom of the jig 707 and a clamping assembly arranged above the jig 707; a second sliding groove 70703 is arranged inside the jig 707; a second sliding bar 706 is slidably connected inside the second sliding groove 70703; a second discharge hole 70702 penetrating the upper and lower sides of the jig 707 is arranged on the surface of the jig 707; the second discharge hole 70702 is connected to the second sliding groove 70703; the second sliding bar 706 is provided with a first discharge hole 70601 penetrating the upper and lower sides of the second sliding bar 706; the clamping assembly is used to push the second sliding bar 706 to slide in the second sliding groove 70703; a storage box 7011 is arranged at the end of the material discharge chute 7012; In the initial state, the first row hole 70601 and the second row hole 70702 are staggered, and the bottom surface of the touch switch in the second row hole 70702 is supported by the top surface of the second sliding bar 706; each side surface of the touch switch is positioned by the second row hole 70702; The material discharge chute 7012, the material storage box 7011 and the clamping assembly are all connected to the external frame; the number of the second discharge holes 70702 and the first discharge holes 70601 is the same, and can be one, two, three or four; the first discharge holes 70601 and the second discharge holes 70702 are evenly arranged along the length direction of the second sliding groove 70703; The second discharge hole 70702 matches the shape of the touch switch; therefore, the touch switch can be completely positioned on the second discharge hole 70702; the fixture 707 is fixed on the turntable assembly 10; the turntable assembly 10 is connected to a divider, and the divider rotates the turntable assembly 10 to the bottom of the clamping assembly; the clamping assembly drives the second sliding bar 706 to slide in the second sliding groove 70703, so that the first discharge hole 70601 is aligned with the second discharge hole 70702, and the touch switch in the second discharge hole 70702 can be discharged downward from the discharge chute 7012 through the first discharge hole 70601, Finally, the materials are collected in the storage box 7011; this structure can realize automatic discharging of products, improve arrangement efficiency, and reduce labor intensity; the clamping assembly includes a lifting module, a third spring 709, and a second follower wheel 7010 rotatably connected to the second sliding bar 706; the lifting module is connected to a lifting seat 704; the lifting seat 704 is fixed with a second cam seat 705; the fixture 707 is fixed with a connecting seat 70701; one end of the third spring 709 is fixed on the connecting seat 70701; the other end of the third spring 709 is fixed on the second sliding bar 706; When the second follower wheel 7010 is not under pressure, the third spring 709 makes the first discharge hole 70601 and the second discharge hole 70702 offset; when the lifting module drives the second cam seat 705 to descend, the second cam seat 705 pushes the second follower wheel 7010, and the second sliding bar 706 slides in the second sliding groove 70703, so that the first discharge hole 70601 is aligned with the second discharge hole 70702; a pressure rod 708 is fixed on the lifting seat 704; when the lifting seat 704 drives the second cam seat When the first discharge hole 70601 is aligned with the second discharge hole 70702, the second cam seat 705 will no longer push the second sliding bar 706 to slide. Therefore, when the lifting seat 704 continues to descend, the first discharge hole 70601 is aligned with the second discharge hole 70702. When the lifting seat 704 continues to descend, the pressure rod 708 is inserted into the second discharge hole 70702 and the first discharge hole 70601 in sequence, and then the touch switch is moved from the second discharge hole 7070 2 is pushed downward to prevent the touch switch from getting stuck on the second discharge hole 70702 and the first discharge hole 70601, so as to ensure smooth discharge; the lifting module includes a discharge cylinder 701, a guide shaft 702 and a guide sleeve 703 slidably connected to the guide shaft 702; the lifting seat 704 is fixed on the guide sleeve 703; one end of the discharge cylinder 701 is connected to the lifting seat 704; the other end of the discharge cylinder 701 and the guide shaft 702 are fixed on the external frame; the discharge cylinder 701 can drive the lifting seat 704 along The guide shaft 702 performs lifting and lowering motion in the length direction; a positioning hole 401 is provided on the lifting seat 704; the positioning hole 401 matches the pressure rod 708; the pressure rod 708 is inserted into the positioning hole 401; the pressure rod 708 is detachably connected to the lifting seat 704; the pressure rod 708 is fixed to the lifting seat 704 by bolts, and the pressure rod 708 can be pulled out of the positioning hole 401 by loosening the upper bolts; the positioning hole 401 is used to position the pressure rod 708 so that the pressure rod 708 can face the second discharge hole 70702.

[0025] The beneficial effects of the present invention are: 1. It can automatically complete the loading and assembly of the upper cover, silicone button, and contact piece pressed between the base, greatly improving the loading efficiency and reducing labor intensity.

[0026] 2. Use the blanking material during punching to form the contact and press it into the base for installation, which simplifies the contact installation process and improves the efficiency of contact installation.

[0027] 3. The hook tip and wedge-shaped surface are used in conjunction with the friction of the material guide groove on the material belt, so that the material belt can be transported in a one-way quantitative manner, which simplifies the feeding structure of the material belt. In addition, when positioning the material belt, the hook tip is used for positioning, thereby improving the accuracy of blanking.

[0028] 4. The order of each feeding is to feed the material strip for seven first gap distances first, and then feed it for one first gap distance; in addition to improving the feeding efficiency, it can also improve the molding efficiency and maximize the utilization of the material strip.

[0029] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. An automatic assembly machine for a touch switch, characterized in that: It comprises a main frame (5); a contact sheet loading station (2), a button loading station (3), an upper cover loading station (6), a discharging station (7), a base loading station (8) and a turntable assembly (10) are fixed on the top surface of the main frame (5); the base loading station (8), the contact sheet loading station (2), the button loading station (3), the upper cover loading station (6) and the discharging station (7) are arranged uniformly in sequence along the circumferential direction of the turntable assembly (10); and a plurality of jigs (707) are evenly distributed on the turntable assembly (10).

2. The automatic assembly machine for a touch switch according to claim 1, characterized in that: The contact piece loading station (2) comprises a fixed bracket (208) fixed on a main frame (5), and a contact piece forming component (207) arranged on the fixed bracket (208); the contact piece forming component (207) comprises a lower mold (209) arranged on the fixed bracket (208); a material strip guide plate (203) is arranged on the surface of the fixed bracket (208); a material strip guide groove (20301) is arranged on the bottom surface of the material strip guide plate (203); one end of the material strip guide groove (20301) is connected to the lower mold (209); a material strip unwinding mechanism (4) is arranged on the main frame (5); and a material pulling component is arranged on the fixed bracket (208).

3. The automatic assembly machine for a touch switch according to claim 2, characterized in that: The material pulling assembly comprises a hook-pushing cylinder (205) having one end fixed on a fixed bracket (208), a straight guide rail (2012) fixed on the fixed bracket (208), and a slider (2013) slidably connected to the straight guide rail (2012); a hook material sliding block (206) is fixed on the slider (2013); the other end of the hook-pushing cylinder (205) is fixed on the hook material sliding block (206); a swing rod limiting groove (20601) is provided at the bottom of the hook material sliding block (206); a hook material swing rod (204) is provided inside the swing rod limiting groove (20601); the hook material swing rod (204 ) is hinged to the hook material sliding block (206) through a hinge shaft (2014); the bottom surface of the other end of the hook material swing rod (204) is provided with a hook tip (20401); the hook tip (20401) is provided with a wedge-shaped surface (2040101) between the surface facing the contact sheet forming component (207) and the bottom surface of the hook tip (20401); the top surface of the material strip guide plate (203) is provided with a hook groove (20302) connected to the material strip guide groove (20301); the hook tip (20401) passes through the hook groove (20302) and then extends into the material strip guide groove (20301).

4. The automatic assembly machine for a touch switch according to claim 3, characterized in that: The gap between adjacent punching holes (901) on the material strip (9) is a first gap; at least two molding cavities (20901) are provided on the lower die (209); the molding cavities (20901) are evenly arranged along the length direction of the material strip guide groove (20301); the spacing between two adjacent molding cavities (20901) is a second gap; and the second gap is N times the first gap.

5. The automatic assembly machine for a touch switch according to claim 4, characterized in that: The second gap is any one of twice, three times, and four times the first gap.

6. The automatic assembly machine for a touch switch according to claim 5, characterized in that: The number of molding cavities (20901) is four; the second gap is twice the size of the first gap.

7. The automatic assembly machine for a touch switch according to claim 6, characterized in that: A front stopper (2010) and a rear stopper (2011) are fixed to the fixed bracket (208); the front stopper (2010) and the rear stopper (2011) are respectively arranged on both sides of the hook material sliding block (206); a lifting sliding groove is arranged at the bottom of the fixed bracket (208); the lifting sliding groove is arranged between the front stopper (2010) and the rear stopper (2011); a lower limit stopper bar (202) is slidably connected in the lifting sliding groove; a lower limit cylinder (201) is connected between the fixed bracket (208) and the lower limit stopper bar (202); and a buffer (215) is arranged at a position of the hook material sliding block (206) facing the front stopper (2010) and at a position of the hook material sliding block (206) facing the rear stopper (2011).

8. The automatic assembly machine for a touch switch according to claim 1, characterized in that: The button loading station (3) comprises a lifting assembly (301) and a material seat body (307); a sliding groove is provided on the material seat body (307); a first sliding bar (3010) is slidably connected to the sliding groove; through holes are provided on the first sliding bar (3010) and the material seat body (307); a lifting seat body is connected to the lifting assembly (301); a push rod (308) is connected to the lifting seat body; a second spring (309) is connected between the material seat body (307) and the first sliding bar (3010); 013); a first cam seat (306) is fixed on the lifting seat body; the first sliding bar (3010) is rotatably connected to the first follower wheel (305); the two ends of the second spring (3013) are pressed against the material seat body (307) and the first sliding bar (3010); the wheel body of the first follower wheel (305) is pressed against the surface of the first cam seat (306); a conical hole (30803) is provided at the bottom of the push rod (308); the diameter of the conical hole (30803) gradually decreases along the height direction.

9. The automatic assembly machine for a touch switch according to claim 1, characterized in that: The discharging station (7) comprises a jig (707), a material discharge trough (7012) arranged at the bottom end of the jig (707) and a clamping assembly arranged above the jig (707); a second sliding groove (70703) is arranged inside the jig (707); a second sliding bar (706) is slidably connected inside the second sliding groove (70703); a second material discharge hole (70702) penetrating the upper and lower sides of the jig (707) is arranged on the surface of the jig (707); the second material discharge hole (70702) is connected to the second sliding groove (70703); the second sliding bar (706) is provided with a first material discharge hole (70601) penetrating the upper and lower sides of the second sliding bar (706); the clamping assembly is used to push the second sliding bar (706) to slide in the second sliding groove (70703); a material storage box (7011) is arranged at the end of the material discharge trough (7012).

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