Microswitch automatic assembly apparatus, microswitch, and assembly method

Abstract

To ensure the accuracy of the relative positions of a tension spring and a switch base.SOLUTION: A microswitch automatic assembly apparatus comprises a base 10, a material carrying rotary table 11 and an installation disc that are provided on the base 10. A base material supply mechanism 20, a holder installation mechanism 30, a swing lever installation mechanism 40, and a tension spring installation mechanism 50 are sequentially provided along a rotation direction of the material carrying rotary table 11. The tension spring installation mechanism 50 comprises a tension spring pre-installation platform, a tension spring position detection platform, a tension spring installation platform, and a tension spring elasticity detection platform, so that the tension spring mounting precision is effectively improved, and the production yield is further improved. Meanwhile, the microswitch is provided with a silencing spacer, so that noise generated when the microswitch is turned on and turned off is reduced.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This application relates to the field of automation devices, and particularly to a microswitch automatic assembly device, a microswitch, and an assembly method.

Background Art

[0002] A microswitch is a switch element. When an external force acts on a transmission element (such as a push pin, push button, lever, roller, etc.), the force is applied to the operating lead. When the operating lead is displaced to the critical point, it instantaneously operates, quickly connecting or disconnecting the movable contact and the fixed contact at the end of the operating lead. Also, the microswitch plays an important role in electronic devices and is used to control the connection and disconnection of circuits and to realize signal transmission and device operation. However, due to the small size of the microswitch, it faces the problem of low yield rate in the assembly production process. The main reason is that due to the small size of the microswitch, higher accuracy and delicate operation are required in the assembly and installation process. Especially when installing the spring of the microswitch, the inaccurate engagement of the spring easily reduces the production yield of the microswitch.

[0003] In the prior art, due to the small size of the microswitch, higher accuracy and delicate operation are required in the assembly and installation process. By means of movable installation with many cylinders assembled, the installation accuracy cannot be improved, and furthermore, the production yield of the microswitch is reduced.

[0004] Also, in the prior art, when installing the spring, the robot arm device and the spring are clamped by the hook device and installed at once. Due to the inaccurate engagement of the spring, the production yield of the microswitch easily decreases.

Summary of the Invention

Problems to be Solved by the Invention

[0005] During the production and assembly of microswitches, due to their small size, high precision and delicate operation are required in the assembly and installation process. In particular, when attaching the tension spring of the microswitch, inaccurate engagement of the tension spring easily reduces the production yield of the microswitch. To solve this technical problem, the present application provides a microswitch automatic assembly device, a microswitch and an assembly method.

Means for Solving the Problems

[0006] In a first aspect, the present application provides a microswitch automatic assembly device and adopts the following technical solutions.

[0007] The microswitch automatic assembly device includes a base provided with a material placement turntable, an attachment plate provided on the material placement turntable, and work carriers provided at equal intervals around the material placement turntable, a base material supply mechanism provided on the base, including a base material winding reel, a first material passage, and a second material passage provided on one side of the first material passage, a holder attachment mechanism provided downstream along the rotation direction of the material placement turntable of the base material supply mechanism, including a holder material reel provided on the base, a holder material passage connected to the holder material reel, and a holder assembly robot arm, a swing lever attachment mechanism provided downstream along the rotation direction of the material placement turntable of the holder attachment mechanism, including a swing lever material winding reel, a swing lever material passage, and a swing lever assembly robot arm, a tension spring attachment mechanism provided downstream along the rotation direction of the material placement turntable of the swing lever attachment mechanism, including a tension spring temporary attachment table, a tension spring position detection table, a tension spring main attachment table, and a tension spring elasticity detection table provided sequentially along the rotation direction of the material placement turntable.

[0008] By adopting the above technical solution, when attaching the tension spring of the microswitch, a four-step working method is adopted, that is, temporary attachment, position detection, permanent attachment, and attachment detection. By performing position detection after temporary attachment, the accuracy of the relative position between the tension spring and the switch base is ensured, the accuracy of attaching the tension spring during permanent attachment is improved, and further the yield rate of the production of the microswitch is improved.

[0009] Optionally, the tension spring temporary attachment base includes a tension spring material disk attached to the attachment disk, a tension spring material passage with one end connected to the tension spring material disk, a tension spring correction robot arm, and a tension spring temporary attachment robot arm.

[0010] By adopting the above technical solution, along with the vibration of the tension spring material disk, the tension spring on the tension spring material disk moves into the tension spring material passage. The tension spring correction robot arm grips the tension spring in the tension spring material passage and corrects the orientation of the tension spring. The tension spring temporary attachment robot arm grips the tension spring on the tension spring correction robot arm and temporarily attaches it to the switch base, thereby ensuring the accuracy of the relative position between the tension spring and the switch base.

[0011] Optionally, the tension spring position detection base includes a first holder fixed to the attachment disk and a position detector provided on the first holder, which is used to detect the position of the tension spring after temporary attachment. The tension spring permanent attachment base includes a second holder fixed to the attachment disk and a mechanically movable up-and-down tension claw connected to the second holder, which is used to stretch the tension spring. The tension spring elasticity detection base includes a third holder fixed to the attachment disk and a pressing rod provided on the third holder, which is used to detect the attachment position of the tension spring.

[0012] By adopting the above technical solution, the position detector detects the relative position between the tension spring and the switch base after temporary installation. After ensuring that the relative position is accurate, the tension spring main mounting robot arm on the tension spring main mounting base mounts the tension spring and accurately assembles the tension spring on the base.

[0013] Optionally, a base detector, a base shearer and a first transfer robot arm are sequentially provided above the first material passage. The base detector is used to detect the presence or absence of materials on the base material carrier tape and the appearance and size of the base. The base shearer is used to shear the base chain into a single base. The first transfer robot arm is used to transfer the base to the second material passage.

[0014] By adopting the above technical solution, the base detector detects the size and appearance of the base, ensures that all the bases transferred to the material placement turntable are qualified, and the base shearer shears the base chain into a single base.

[0015] Optionally, an air blow and suction device, an oil applicator and a second transfer robot arm are sequentially provided above the second material passage. The air blow and suction device is used to remove foreign objects on the base. The oil applicator is used to apply oil to the base to improve the lubricity and anti-corrosion property of the base surface. The second transfer robot arm is used to transfer the base to the work carrier.

[0016] By adopting the above technical solution, the air blow and suction device can generate a high-pressure air flow, remove foreign objects on the base of the microswitch, and when the oil applicator applies oil to the base, it can improve the lubricity and anti-corrosion property of the contact surface, and improve the reliability and service life of the microswitch.

[0017] Optionally, the swing lever mounting mechanism (40) further includes a swing lever shearer provided downstream of the swing lever material passage, a swing lever transfer robot arm, and a swing lever detector. The swing lever transfer robot arm is used to transfer the swing lever in the swing lever material passage to the swing lever detector to detect the opening and closing dimensions of the swing lever by the swing lever detector.

[0018] By adopting the above technical solution, the swing lever detector detects the size of the swing lever and ensures that the swing lever transferred to the material placement turntable meets the requirements.

[0019] Optionally, the swing lever mounting mechanism further includes a swing lever correction robot arm provided between the swing lever detector and the swing lever assembly robot arm and used to correct the direction of the swing lever.

[0020] By adopting the above technical solution, the swing lever correction robot arm can adjust the position of the swing lever according to the angle required for assembly to meet the angle required for installation.

[0021] Optionally, the microswitch automatic assembly device further includes an opening and closing dimension inspection table, a material distribution inspection table, and a material discharge passage sequentially provided downstream along the rotation direction of the material placement turntable of the tension spring elasticity inspection table. The opening and closing dimension inspection table is used to detect the opening and closing dimensions between contacts, and the material distribution inspection table detects the performance of the workpiece.

[0022] By adopting the above technical solution, the assembled microswitch is detected, the unqualified ones are dropped into the waste passage, and the qualified ones are transferred to the material discharge passage, ensuring that all items in the material discharge passage are qualified products.

[0023] In a second aspect, the present application provides a microswitch and adopts the following technical solution.

[0024] The microswitch uses the microswitch automatic assembly device described in any one of the above items. The microswitch includes a microswitch base, an operating lead assembly, and a sound-absorbing spacer. The sound-absorbing spacer is provided on the upper and lower surfaces of the operating lead assembly to remove the noise generated when the operating lead assembly collides with the upper cover and the microswitch base.

[0025] By adopting the above technical solution, when the microswitch is turned on, the operating lead assembly moves downward, driving the sound-absorbing spacer to move downward. The sound-absorbing spacer collides with the base. When the microswitch is turned off, the operating lead assembly moves upward, driving the sound-absorbing spacer to move upward. The sound-absorbing spacer collides with the upper cover, thereby reducing the noise generated when the microswitch is turned on and off.

[0026] In a third aspect, the present application provides an assembly method for a microswitch, and the following technical solutions are adopted.

[0027] The assembly method of the microswitch uses the microswitch automatic assembly device described in any one of the above items. The assembly method includes: Step S1 of providing a switch base, wherein the switch base is arranged on a base frame, and the base frames are connected to each other to form a base chain; Step S2 of transferring the base chain to a first material passage and then transferring it to the material placement turntable through the first material passage and a second material passage; When the material placement turntable transfers the base to a holder mounting mechanism, step S3 of the holder assembly robot arm gripping the holder and attaching it to the base; When the material placement turntable transfers the base with the holder attached to the swing lever mounting mechanism, step S4 of the swing lever assembly robot arm gripping the swing lever and attaching it to the base; When the material placement turntable transfers the base with the swing lever attached to the tension spring attachment mechanism, the tension spring attachment mechanism includes step S5 of temporarily attaching, position detecting, permanently attaching, and attachment detecting to the tension spring.

[0028] By adopting the above technical solution, when attaching the tension spring of the microswitch, a four-step working method is adopted, that is, temporary attachment, position detection, permanent attachment, and attachment detection. By performing position detection after temporary attachment, the accuracy of the relative position between the tension spring and the switch base is ensured, the accuracy of attaching the tension spring during permanent attachment is improved, and further the yield rate of the production of the microswitch is improved.

Advantages of the Invention

[0029] As described above, the technical solution of the embodiment of the present application includes at least one of the following beneficial technical effects. 1. When attaching the tension spring of the microswitch, a four-step working method is adopted, that is, temporary attachment, position detection, permanent attachment, and attachment detection. By performing position detection after temporary attachment, the accuracy of the relative position between the tension spring and the switch base is ensured, the accuracy of attaching the tension spring during permanent attachment is improved, and further the yield rate of the production of the microswitch is improved. 2. The microswitch automatic assembly device detects the assembled microswitch, drops the unqualified ones into the waste passage, and transfers the qualified ones to the material discharge passage, thereby ensuring that all the ones in the material discharge passage are good products. 3. The material transfer mechanism of the microswitch automatic assembly device adopts a disk design form, improving the space utilization rate of the device.

Brief Description of the Drawings

[0030]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0031] Hereinafter, with reference to the drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of them. Based on the embodiments in the present application, other embodiments obtained by those skilled in the art in understanding the inventive concept of the present application all belong to the scope protected by the present application.

[0032] In addition, in the embodiments of the present application, regarding the directional indications (such as up, down, left, right, front, back...), the directional indications are only used to interpret the relative positional relationship and movement status between each member in a specific posture (as shown in the drawings). When the specific posture changes, the directional indications also change accordingly.

[0033] To make it easier to understand the technical solutions of the present application, hereinafter, the microswitch automatic assembly device, microswitch, and assembly method of the microswitch of the present application will be described in more detail, but it is not limited to the protection scope of the present application.

[0034] Referring to FIG. 1, an embodiment of the present application discloses a microswitch automatic assembly device including a base 10, a base material supply mechanism 20, a holder mounting mechanism 30, a swing lever mounting mechanism 40, and a tension spring mounting mechanism 50. A material placement turntable 11 is provided on the base 10, a mounting plate 12 is provided on the material placement turntable 11, and workpiece carriers 13 are provided at equal intervals around the material placement turntable 11. The centers of the material placement turntable 11 and the mounting plate 12 are located on the same vertical line, and the diameter of the material placement turntable 11 is larger than the diameter of the mounting plate 12. The material placement turntable 11 can rotate about the vertical line passing through its center as the axis, and the mounting plate 12 cannot rotate. The base material supply mechanism 20 is provided on the base 10, and the base material supply mechanism 20 includes a base material winding reel 21, a first material passage 22, and a second material passage 23 provided on one side of the first material passage 22. There are conveyor belts in the first material passage 22 and the second material passage 23. The base material winding reel 21 has a first material winding support frame, and one end of the base frame of the first material winding support frame is fixed to the base 10. The holder mounting mechanism 30 is provided downstream along the rotation direction of the material placement turntable 11 of the base material supply mechanism 20. The holder mounting mechanism 30 includes a holder material disk 31 provided on the base 10, a holder material passage 32 connected to the holder material disk 31, and a holder assembly robot arm 33. A vibrator is provided on the base of the holder material disk 31 for vibrating the holder material disk 31 to smoothly move the holder into the holder material passage 32. The holder assembly robot arm 33 is connected to a robot arm holder. One end of the robot arm holder is fixed to the base 10, the other end is fixed to the mounting plate 12, and the mounting plate 12 can be further fixed. The swing lever mounting mechanism 40 is provided downstream along the rotation direction of the material placement turntable 11 of the holder mounting mechanism 30. The swing lever mounting mechanism 40 includes a swing lever material winding reel 41, a swing lever material passage 42, and a swing lever assembly robot arm 43. The swing lever material winding reel 41 has a second material winding support frame, and one end of the base frame of the second material winding support frame is fixed to the base 10.The tension spring mounting mechanism 50 is provided downstream along the rotation direction of the material placement turntable 11 of the swing lever mounting mechanism 40. The tension spring mounting mechanism 50 includes a temporary tension spring mounting base 51, a tension spring position detection base 52, a main tension spring mounting base 53, and a tension spring elasticity detection base 54 that are sequentially provided along the rotation direction of the material placement turntable 11.

[0035] Referring to FIG. 1, the microswitch automatic assembly device further includes an opening and closing dimension detection base 60, a material distribution detection base 70, and a material discharge passage 90 that are sequentially provided downstream along the rotation direction of the material placement turntable 11 of the tension spring elasticity detection base 54. The opening and closing dimension detection base 60 is used to detect the opening and closing dimension between contacts, and the material distribution detection base 70 detects the performance of the workpiece. A waste pipe is further provided on one side of the material discharge passage 90. The material discharge robot arm transfers the finished product to the material discharge passage 90 and transfers the waste to the waste pipe.

[0036] Referring to FIG. 2, the temporary tension spring mounting base 51 includes a tension spring material disk 511 attached to the mounting disk 12, a tension spring material passage 512 with one end connected to the tension spring material disk 511, a tension spring correction robot arm 513, and a temporary tension spring mounting robot arm 514. A vibrator is provided on the base of the tension spring material disk 511 and is used to vibrate the tension spring material disk 511 to smoothly transfer the tension spring to the tension spring material passage 512. The temporary tension spring mounting robot arm 514 is connected to a robot arm holder. One end of the robot arm holder is fixed to the base 10, the other end is fixed to the mounting disk 12, and the mounting disk 12 can be further fixed.

[0037] The tensile spring position detection table 52 includes a first holder fixed to the mounting plate 12 and a position detector provided on the first holder and used for detecting the position of the tensile spring after temporary attachment. The tensile spring main mounting table 53 includes a second holder fixed to the mounting plate 12 and a mechanical tensile claw connected to the second holder and capable of moving up and down for stretching the tensile spring. The tensile spring elasticity detection table 54 includes a third holder fixed to the mounting plate 12 and a pressing rod provided on the third holder and used for detecting the mounting position of the tensile spring.

[0038] Referring to FIG. 3, a base detector 24, a base shearing device 25, and a first transfer robot arm 26 are sequentially provided above the first material passage 22. The base detector 24 is mounted directly above the first material passage 22 via a holder. A waste collection tank is further provided at the rear end of the first material passage 22. The unqualified base detected by the base detector 24 is transferred to the waste collection tank. The base detector 24 is used for detecting the presence or absence of materials in the base material carrier tape and the appearance and size of the base. The base shearing device 25 is used for shearing the base chain into a single base. The first transfer robot arm 26 is used for transferring the base to the second material passage 23.

[0039] An air blow suction device 27, an oil applicator 28, and a second transfer robot arm 29 are sequentially provided above the second material passage 23. The air blow suction device 27 is used for removing foreign matters on the base. The oil applicator 28 is used for applying oil to the base to improve the lubricity and anti-corrosion property of the base surface. The second transfer robot arm 29 is used for transferring the base to the work carrier 13.

[0040] Referring to FIG. 4, the swing lever mounting mechanism 40 further includes a swing lever shear 47 provided downstream of the swing lever material passage 42, a swing lever transfer robot arm 44, and a swing lever detector 45. The swing lever transfer robot arm 44 is used to transfer the swing lever in the swing lever material passage 42 to the swing lever detector 45 to detect the opening and closing dimensions of the swing lever by the swing lever detector 45.

[0041] The swing lever mounting mechanism 40 further includes a swing lever correction robot arm 46 provided between the swing lever detector 45 and the swing lever assembly robot arm 43 and used to correct the direction of the swing lever.

[0042] The implementation principle of the microswitch automatic assembly device in the embodiments of the present application is as follows. A base chain formed by connecting a single switch base is provided, and the base chain is supplied to the first material passage 22. The conveyor belt in the first material passage 22 drives the base chain to move forward and move to the base shear 25 through the base detector 24. The base shear 25 shears the qualified base and transfers the unqualified base to the waste collection tank. The first transfer robot arm 26 transfers the qualified base to the second material passage 23, and air blow cleaning and oil coating are performed on the base in the second material passage 23. Then, it is transferred to the material placement turntable 11 through the second transfer robot arm 29. The material placement turntable 11 transfers it to the holder mounting mechanism 30, and the holder mounting mechanism 30 mounts the holder. The base with the holder mounted is transferred to the swing lever mounting mechanism 40 through the material placement turntable 11, and the swing lever mounting mechanism 40 mounts the swing lever. The base with the swing lever mounted is transferred to the tension spring mounting mechanism 50 through the material placement turntable 11, and the tension spring mounting mechanism 50 mounts the tension spring. After the tension spring is mounted, through the detection of the opening and closing dimensions by the opening and closing dimension detection table 60 and the detection of the appearance and size by the material distribution detection table 70, the material discharge robot arm transfers the finished product to the material discharge passage 90 and transfers the waste to the waste pipeline.

[0043] Referring to FIG. 5, an embodiment of the present application discloses a microswitch using the microswitch automatic assembly device described in any one of the above, the microswitch includes a microswitch base 81, an operating lead assembly 82 and a sound-absorbing spacer 83, and the sound-absorbing spacer 83 is provided on the upper and lower surfaces of the operating lead assembly 82 to remove noise generated when the operating lead assembly 82 collides with the upper cover and the microswitch base 81.

[0044] The implementation principle of the microswitch in the embodiment of the present application is as follows. When turning on the microswitch, the operating lead assembly 82 of the microswitch collides with the microswitch base 81 to generate noise, and when turning on the microswitch, the operating lead assembly 82 of the microswitch collides with the upper cover to generate noise. By providing the sound-absorbing spacer 83 on the upper and lower surfaces of the operating lead assembly 82, the noise generated when the microswitch is turned on and off can be reduced.

[0045] Referring to FIG. 1, an embodiment of the present application discloses an assembly method of a microswitch using the microswitch automatic assembly device according to any one of the above, and the assembly method includes: a step of providing a switch base, wherein the switch base is arranged on a base frame, and the base frames are connected to each other to form a base chain (step S1); a step of transferring the base chain to a first material passage 22 and then transferring it to a material placement turntable 11 through the first material passage 22 and a second material passage 23 (step S2); when the material placement turntable 11 transfers the base to a holder mounting mechanism 30, a step in which a holder assembly robot arm 33 grips a holder and attaches it to the base (step S3); when the material placement turntable 11 transfers the base with the holder attached to a swing lever mounting mechanism 40, a step in which a swing lever assembly robot arm 43 grips a swing lever and attaches it to the base (step S4); and when the material placement turntable 11 transfers the base with the swing lever attached to a tension spring mounting mechanism 50, a step in which the tension spring mounting mechanism 50 performs temporary mounting, position detection, permanent mounting, and mounting detection on the tension spring (step S5).

[0046] The implementation principle of the microswitch assembly method in the embodiment of the present application is as follows. After passing the detection, the switch base is transferred to the material placement turntable 11, and the material placement turntable 11 transfers the base to attach a holder with the holder mounting mechanism 30, attach a swing lever with the swing lever mounting mechanism 40, temporarily mount a tension spring with the tension spring mounting mechanism 50, and drive it to perform position detection after the temporary mounting, so as to ensure the accuracy of the relative position between the tension spring and the switch base, improve the accuracy of the tension spring mounting during permanent mounting, and further improve the yield rate of the microswitch production.

[0047] The above are all preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should all be included within the protection scope of the present application.

Description of Reference Signs

[0048] 10... Base, 11... Material placement turntable, 12... Mounting plate, 13... Work carrier, 20... Base material supply mechanism, 21... Base material take-up reel, 22... First material passage, 23... Second material passage, 24... Base detector, 25... Base shearer, 26... First transfer robot arm, 27... Air blow suction device, 28... Oil applicator, 29... Second transfer robot arm, 30... Holder attachment mechanism, 31... Holder material reel, 32... Holder material passage, 33... Holder assembly robot arm, 40... Oscillating lever attachment mechanism, 41... Oscillating lever material take-up reel, 42... Oscillating lever material passage, 43... Oscillating lever assembly robot arm, 44... Oscillating lever transfer robot arm, 45... Oscillating lever detector, 46... Oscillating lever correction robot arm, 47... Oscillating lever shearer, 50... Tension spring attachment mechanism, 51... Tension spring temporary mounting base, 511... Tension spring material reel, 512... Tension spring material passage, 513... Tension spring correction robot arm, 514... Tension spring temporary mounting robot arm, 52... Tension spring position detection table, 521... First holder, 522... Position detector, 53... Tension spring permanent mounting base, 531... Second holder, 532... Mechanical tension claw, 54... Tension spring elasticity detection table, 541... Third holder, 542... Pressing rod, 60... Opening and closing dimension detection table, 70... Material distribution detection table, 81... Microswitch base, 82... Operation lead assembly, 83... Soundproof spacer, 90... Material discharge passage.

Claims

1. A base (10) on which a material-loading turntable (11) is provided, an attachment plate (12) is provided on the material-loading turntable (11), and work carriers (13) are provided at equal intervals around the periphery of the material-loading turntable (11); a base material supply mechanism (20) provided on the base (10) and including a base material winding plate (21), a first material passage (22), and a second material passage (23) provided on one side of the first material passage (22); a holder mounting mechanism (30) provided downstream in the rotation direction of the material loading rotating plate (11) of the base material supply mechanism (20), the holder mounting mechanism (30) including a holder material plate (31) provided on the base (10), a holder material passage (32) connected to the holder material plate (31), and a holder assembly robot arm (33); a swing lever mounting mechanism (40) provided downstream of the holder mounting mechanism (30) in the direction of rotation of the material-mounting rotating disk (11), the swing lever mounting mechanism (40) including a swing lever material winding disk (41), a swing lever material passage (42), and a swing lever assembly robot arm (43); a tension spring mounting mechanism (50) provided downstream of the swing lever mounting mechanism (40) in the rotation direction of the material loading turntable (11), the tension spring mounting mechanism (50) including a tension spring temporary mounting base (51), a tension spring position detection base (52), a tension spring main mounting base (53) and a tension spring elasticity detection base (54) provided in sequence along the rotation direction of the material loading turntable (11); 2. An automatic microswitch assembly device comprising:

2. The tension spring temporary mounting base (51) includes a tension spring material plate (511) attached to the mounting plate (12), a tension spring material passage (512) having one end connected to the tension spring material plate (511), a tension spring correction robot arm (513), and a tension spring temporary mounting robot arm (514).

2. The microswitch automatic assembly apparatus according to claim 1,

3. The tension spring position detection stand (52) includes a first holder (521) fixed to the mounting plate (12) and a position detector (522) provided on the first holder (521) and used to detect the position of the tension spring after temporary mounting; the tension spring main mounting stand (53) includes a second holder (531) fixed to the mounting plate (12) and a mechanical tension claw (532) connected to the second holder (531) and movable up and down and used to stretch the tension spring; and the tension spring elasticity detection stand (54) includes a third holder (541) fixed to the mounting plate (12) and a pressing rod (542) provided on the third holder (541) and used to detect the mounting position of the tension spring.

2. The microswitch automatic assembly apparatus according to claim 1,

4. A base detector (24), a base shearer (25) and a first transfer robot arm (26) are sequentially provided above the first material passage (22), the base detector (24) is used to detect the presence or absence of material in the base material carrier tape and the appearance and size of the base, the base shearer (25) is used to shear the base chain into a single base, and the first transfer robot arm (26) is used to transfer the base to the second material passage (23).

2. The microswitch automatic assembly apparatus according to claim 1,

5. an air blow suction device (27), an oil applicator (28) and a second transfer robot arm (29) are provided in this order above the second material passage (23), the air blow suction device (27) is used to remove foreign matter on the base, the oil applicator (28) is used to apply oil to the base to improve the lubricity and anti-corrosion properties of the base surface, and the second transfer robot arm (29) is used to transfer the base to the work carrier (13); 2. The microswitch automatic assembly apparatus according to claim 1,

6. The swing lever mounting mechanism (40) further includes a swing lever shear (47) provided downstream of the swing lever material passage (42), a swing lever transfer robot arm (44), and a swing lever detector (45), and the swing lever transfer robot arm (44) is used to transfer the swing lever in the swing lever material passage (42) to the swing lever detector (45) and to cause the swing lever detector (45) to detect the opening and closing dimensions of the swing lever.

2. The microswitch automatic assembly apparatus according to claim 1,

7. The swing lever mounting mechanism (40) further includes a swing lever correction robot arm (46) provided between the swing lever detector (45) and the swing lever assembling robot arm (43) and used to correct the direction of the swing lever.

7. The microswitch automatic assembly apparatus according to claim 6.

8. The system further includes an opening / closing dimension detection table (60), a material distribution detection table (70), and a material discharge passage (90) that are sequentially provided downstream of the tension spring elasticity detection table (54) in the rotation direction of the material loading turntable (11), the opening / closing dimension detection table (60) is used to detect the opening / closing dimension between contacts, and the material distribution detection table (70) detects the performance of the workpiece.

2. The microswitch automatic assembly apparatus according to claim 1,

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