Automatic microswitch assembling equipment

Abstract

The invention discloses automatic assembling equipment for microswitches, and belongs to the field of automatic equipment. The automatic microswitch assembling equipment comprises a multi-station rotary workbench, a lower shell feeding mechanism, a fixed terminal assembling mechanism, a contact terminal assembling mechanism, a key and upper shell assembling mechanism, a detection mechanism and a product discharging mechanism. The problem that a metal sheet terminal is difficult to grab and assemble is solved, assembling of a microswitch in the vertical direction becomes possible, and the assembling stability and the assembling precision are improved; besides, the key and the upper shell are assembled in advance through the key and upper shell assembling mechanism, the whole key and the upper shell are assembled as an assembly, positioning of the key is facilitated, the assembling action is more stable and reliable, the assembling procedure is optimized, a rotary workbench with fewer stations can be adopted, the assembling equipment is more compact in structure, and the assembling efficiency is improved. And the equipment cost is reduced, the assembling rhythm is more compact, and the assembling efficiency is higher.

Description

Technical Field

[0001] This invention relates to an automated device, and more specifically, to an automated assembly device for micro switches. Background Technology

[0002] Figures 1 to 3 The diagram shows a commonly used micro switch 100, which mainly consists of a lower housing 101, a fixed terminal 102, a contact terminal 103, a push button 104, and an upper housing 105. The fixed terminal 102 and the contact terminal 103 are fixedly mounted on the lower housing 101. The contact terminal 103 has a spring arm and is generally L-shaped. The push button 104 is mounted on the upper housing 105 and together with it on the lower housing 101, with the inner end of the push button 104 abutting against the spring arm of the contact terminal 103. In use, pressing down the push button 104 causes the free end of the spring arm to contact the fixed terminal 102, thus establishing a connection between the fixed terminal 102 and the contact terminal 103. Releasing the push button 104 resets the switch under the elastic action of the spring arm. This micro switch 100 has a simple structure and is widely used in various electronic and mechanical equipment, with a very large demand.

[0003] To improve the production efficiency and product quality stability of micro switches, automated equipment is now widely used to replace manual assembly. For example, the "Automatic Assembly and Testing Machine for Micro Switches" disclosed in Chinese Patent Publication No. CN107695676A (publication date: February 16, 2018) demonstrates this. Although different automated assembly equipment targets different micro switch structures, the assembly process is largely the same. Most utilize multi-station rotary tables for assembly, including feeding, assembly, testing, and unloading mechanisms arranged around the rotary table. The multi-station rotary table drives the various components to move between different stations, achieving automated feeding, assembly, testing, and unloading, greatly improving the production efficiency and product assembly consistency of micro switches.

[0004] However, the main challenges in automating the assembly of micro switches lie in the assembly of terminals and the arrangement of assembly processes.

[0005] First, terminals are typically thin metal sheets. For example, the fixed terminal 102 mentioned above is a straight metal sheet, and the contact terminal 103 is an L-shaped metal sheet. Both are small in size and thin in thickness, increasing the difficulty of gripping and loading the terminals during assembly. In the aforementioned patent application CN107695676A, the terminals are assembled horizontally, i.e., the housing has a left-right structure. The base is first placed in the fixture of the rotary table, and then the corresponding terminals are sequentially fed onto the assembly table through a spiral feeder and a vertical vibratory feeder. The terminals are then pressed into the base by a cylinder pushing horizontally. This design does not require a complex terminal gripping and loading structure, but it is not suitable for the aforementioned... Figures 1 to 3 The microswitch 100 shown has a top-bottom structure, requiring the fixed terminal 102 and contact terminal 103 to be vertically inserted into the corresponding mounting holes of the lower housing 101. However, existing spiral feeders and vertical vibratory feeders are difficult to use for vertical terminal transport. Chinese Patent Publication No. CN113020973A discloses "A Fully Automatic Assembly Equipment for Microswitches" (publication date: June 25, 2021), which uses a strip feeding method for terminals. That is, the terminal springs are not completely cut on the strip, and the terminals are fed by conveying the strip. However, this requires a complex spring cutting mechanism. The cut springs are fixed and assembled by magnetic attraction. This method is not suitable for non-ferromagnetic terminals such as copper, and it is also difficult to use for gripping and assembling L-shaped contact terminals. Chinese Patent Publication No. CN115083813A discloses an "Automatic Assembly Machine for Micro Switch Components" (publication date: September 20, 2022). After the terminals (contact pieces) are horizontally conveyed, they are gripped by a clamping cylinder and rotated 90° by a rotary cylinder, so that the contact pieces are arranged laterally and then assembled onto the pin holder. Although this method can change the assembly direction of the contact pieces, the entire gripping mechanism requires many moving joints, which is not conducive to ensuring the alignment accuracy and pressing stability of the contact pieces and pin holders. At the same time, it does not involve the gripping and assembly of L-shaped contact terminals.

[0006] Secondly, the assembly of the aforementioned micro switch 100 includes at least seven processes: lower housing loading, fixed terminal assembly, contact terminal assembly, push button assembly, upper housing assembly, testing, and product unloading. Most existing assembly equipment uses rotary tables with more than seven stations. For example, the patent applications CN113020973A and CN115083813A both use 12-station rotary tables. While this facilitates the arrangement of various assembly mechanisms around the rotary table, it also leaves some empty stations that still require assembly fixtures, which is not conducive to reducing equipment costs. Furthermore, it requires rotary tables with higher power and larger dimensions, resulting in more steps required for one revolution, increasing the indexing rotation drive action and potentially shortening the service life of the rotary table. Summary of the Invention

[0007] 1. The technical problem that the invention aims to solve

[0008] The purpose of this invention is to overcome the aforementioned shortcomings of existing micro switch assembly equipment and provide an automated micro switch assembly equipment. By employing the technical solution of this invention, the problem of difficult metal sheet terminal gripping and assembly is solved, making vertical assembly of micro switches possible and improving assembly stability and accuracy. Furthermore, by pre-assembling the button and upper housing, the entire assembly is assembled as a component, which not only facilitates button positioning and makes the assembly action more stable and reliable, but also optimizes the assembly process. A rotary worktable with fewer workstations can be used, making the assembly equipment structure more compact, reducing equipment costs, and resulting in a more compact assembly cycle and higher assembly efficiency.

[0009] 2. Technical Solution

[0010] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0011] The present invention provides an automated assembly device for micro switches, comprising:

[0012] A multi-station rotary table defines a lower housing loading station, a fixed terminal assembly station, a contact terminal assembly station, a component assembly station, an inspection station, and a product unloading station arranged circumferentially along the rotation direction. The turntable of the multi-station rotary table is provided with clamping components corresponding to each of the above stations at equal angles circumferentially.

[0013] The lower housing loading mechanism is located at the lower housing loading station and is used to place the lower housings one by one with the assembly surface facing upwards onto the fixture assembly that has been rotated to the lower housing loading station.

[0014] A fixed terminal assembly mechanism is provided at a fixed terminal assembly station. It includes a fixed terminal reversing mechanism and a fixed terminal pressing mechanism. The fixed terminal reversing mechanism has a fixed terminal reversing block that can rotate and switch between horizontal and vertical positions. The fixed terminal reversing block also has a fixed terminal ejection assembly. The fixed terminal pressing mechanism is used to grab a fixed terminal from the fixed terminal reversing block when it is rotated to the vertical position and press it into the lower housing conveyed by the lower housing loading station.

[0015] A contact terminal assembly mechanism is provided at the contact terminal assembly station. It includes a contact terminal feeding mechanism and a contact terminal pressing mechanism. The contact terminal feeding mechanism is used to separate the contact terminals one by one and push them out to the gripping position with the plug end facing down. The contact terminal pressing mechanism is used to grip the contact terminals from the gripping position and press them into the lower housing conveyed from the fixed terminal assembly station.

[0016] A button and upper housing assembly mechanism is provided at the component assembly station. It includes a button feeding mechanism and an upper housing assembly mechanism. The button feeding mechanism places the button vertically on the component assembly table, and the upper housing assembly mechanism places the upper housing on the component assembly table to assemble the upper housing with the button. The button feeding mechanism also has component gripping claws that move synchronously with the button placement action. These gripping claws grip and press the assembled upper housing and button together onto the lower housing conveyed from the contact terminal assembly station.

[0017] The testing mechanism, located at the testing station, includes a button triggering mechanism and a signal output mechanism. The button triggering mechanism is used to press the button of the assembled micro switch delivered from the component assembly station, so that the spring arm of the contact terminal contacts and conducts electricity with the fixed terminal. The signal output mechanism is located below the testing station and is used to contact the fixed terminal and the contact terminal respectively to connect the micro switch to the testing circuit.

[0018] The product unloading mechanism is located at the product unloading station and is used to remove the assembled and inspected microswitches from the fixture assembly that has been rotated to the product unloading station.

[0019] Furthermore, the clamping assembly includes a clamping mounting base, a positioning block, a clamping block, and a clamping spring. The positioning block is fixedly mounted on the clamping mounting base and has a vertically penetrating clamping hole for the lower housing. The clamping block is located on one side of the clamping hole for the lower housing. The clamping spring is located between the clamping block and the positioning block and is used to maintain the clamping block in an elastic tendency to move towards the clamping hole for the lower housing. When the lower housing feeding mechanism places the lower housing into the clamping hole for the lower housing, the clamping block elastically clamps the lower housing.

[0020] Furthermore, a pair of elastic conductive rods located below the clamping holes of the lower housing are also installed below the fixture mounting base, for contacting the lower ends of the fixed terminal and the contact terminal respectively during the detection process of the detection mechanism.

[0021] Furthermore, the lower housing loading mechanism includes a lower housing positioning and lifting mechanism and a lower housing gripping and placing mechanism, wherein:

[0022] The lower housing positioning and lifting mechanism includes a lower housing loading and positioning platform, a lower housing top block, and a lower housing lifting cylinder. The lower housing top block is installed at the bottom of the positioning groove of the lower housing loading and positioning platform, and the lower housing lifting cylinder is connected to the lower housing top block to drive the lower housing top block to move up and down.

[0023] The lower housing gripping and placement mechanism includes a lower housing gripping block mounted on the first horizontal and vertical bidirectional motion assembly. The lower housing gripping block has a gripping groove that runs vertically through it. A pressing block is provided in the gripping groove. A lower housing pushing cylinder is provided on the pressing block for driving the pressing block to move up and down.

[0024] Furthermore, in the fixed terminal assembly mechanism,

[0025] The fixed terminal reversing mechanism further includes a first rotary cylinder, a fixed terminal feeding seat, a fixed terminal discharging slider, a fixed terminal discharging cylinder, a fixed terminal pushing slider, and a fixed terminal pushing cylinder. The first rotary cylinder is connected to the fixed terminal reversing block and is used to drive the fixed terminal reversing block to rotate and switch between horizontal and vertical positions. The fixed terminal feeding seat is located on one side of the fixed terminal reversing block and has a pushing slide opposite to the horizontally positioned fixed terminal reversing block. The fixed terminal discharging slider is located perpendicular to the pushing slide. On the fixed terminal feeding base, the fixed terminal discharge cylinder is connected to the fixed terminal discharge slider, and is used to drive the feeding groove on the fixed terminal discharge slider to switch between the receiving position and the feeding position; the fixed terminal push slider is arranged on the fixed terminal feeding base along the push slide direction, and the fixed terminal push cylinder is connected to the fixed terminal push slider, and is used to push the fixed terminal in the feeding groove of the fixed terminal discharge slider into the material hole of the fixed terminal reversing block in the horizontal position through the push slide; the fixed terminal ejection assembly has an ejector pin located in the material hole.

[0026] The fixed terminal pressing mechanism includes a fixed terminal gripping block mounted on a second horizontal and vertical bidirectional motion assembly. A push pin seat is provided above the fixed terminal gripping block, and a push pin located inside the fixed terminal gripping block is mounted on the push pin seat. The push pin seat is connected to the fixed terminal pressing cylinder.

[0027] Furthermore, in the contact terminal assembly mechanism,

[0028] The contact terminal feeding mechanism includes a contact terminal feeding seat, a contact terminal discharging slider, an upward lifting slider, a contact terminal discharging cylinder, a contact terminal upper ejector pin, a contact terminal upper ejector cylinder, and a contact terminal guide plate. The contact terminal discharging slider is horizontally slidably mounted on the contact terminal feeding seat. The contact terminal discharging cylinder is connected to the contact terminal discharging slider and is used to drive the contact terminal discharging slider to switch between a receiving position and a feeding position. The contact terminal guide plate is located on the upper part of the contact terminal feeding seat and has contact terminal guide holes corresponding to the feeding positions. The upward lifting slider... The block is vertically slidably mounted on the contact terminal discharge slider. The contact terminal feeding seat has a track groove, and the lifting slider is equipped with rollers located in the track groove. When the contact terminal discharge cylinder drives the contact terminal discharge slider to move from the receiving position to the feeding position, the lifting slider moves upward and approaches the contact terminal guide plate under the action of the track groove. The contact terminal upper ejector pin is installed below the contact terminal feeding seat and is opposite to the contact terminal guide hole. The contact terminal upper ejector pin is connected to the contact terminal upper ejector cylinder and is used to push the contact terminal on the lifting slider upward through the contact terminal guide hole.

[0029] The contact terminal pressing mechanism includes a contact terminal gripping block mounted on a third transverse and longitudinal bidirectional motion assembly. A pressing seat is provided above the contact terminal gripping block, and a pressing push rod located inside the contact terminal gripping block is mounted on the pressing seat. The pressing seat is connected to a contact terminal pressing cylinder.

[0030] Furthermore, in the button and upper housing assembly mechanism,

[0031] The button feeding mechanism further includes a button gripper, a button reversing block, a button feeding seat, a button discharge slider, a button discharge cylinder, a button pushing slider, a button pushing cylinder, and a second rotary cylinder. The second rotary cylinder is connected to the button reversing block and is used to drive the button reversing block to rotate between horizontal and vertical positions. The button feeding seat is located on one side of the button reversing block and has a button slide rail opposite to the horizontally positioned button reversing block. The button discharge slider is perpendicular to the button slide rail and is located on the button feeding seat. The button discharge cylinder is connected to the button discharge slider and is used to drive the discharge groove on the button discharge slider. The system switches between a receiving position and a feeding position; the button push slider is set on the button loading seat along the button slide direction; the button push cylinder is connected to the button push slider and is used to push the pressing button in the discharge groove of the button discharge slider into the material hole of the button reversing block in the horizontal position through the button slide; the button reversing block also has a button ejection component for pushing the pressing button outward in the vertical position; the button gripping claw is installed on the fourth horizontal and vertical bidirectional motion component and is used to grip the pressing button on the button reversing block in the vertical position and place it on the component assembly table; the component gripping claw is also installed on the fourth horizontal and vertical bidirectional motion component.

[0032] The upper housing assembly mechanism includes an upper housing gripper and an upper housing positioning seat. The upper housing gripper is mounted on the fifth horizontal and vertical bidirectional motion component and is used to grip the upper housing on the upper housing positioning seat and place it on the component assembly table.

[0033] Furthermore, in the detection mechanism, the button triggering mechanism is located above the turntable and includes a trigger rod, a trigger slide, and a trigger cylinder. The trigger rod is mounted on the trigger slide, and the trigger cylinder is connected to the trigger slide to drive the trigger rod to move up and down.

[0034] The signal output mechanism is located below the turntable and includes a detection conductive rod, a conductive rod mounting base, and a detection lifting cylinder. There are two sets of detection conductive rods, which are respectively mounted on the conductive rod mounting base. The detection lifting cylinder is connected to the conductive rod mounting base and is used to drive the detection conductive rod to move up and down.

[0035] Furthermore, a limiting block is provided below the trigger slide, and the upper end of the trigger rod is threadedly connected to the trigger slide to adjust the relative vertical position of the lower end of the trigger rod and the limiting block.

[0036] Furthermore, the product unloading mechanism includes an unloading gripper, which is mounted on the sixth horizontal and vertical bidirectional motion assembly and is used to remove the micro switch at the product unloading station so that the vacant clamp assembly can rotate to the lower housing loading station.

[0037] 3. Beneficial effects

[0038] Compared with existing known technologies, the technical solution provided by this invention has the following significant advantages:

[0039] (1) An automated assembly equipment for micro switches according to the present invention includes a multi-station rotary table, a lower housing loading mechanism, a fixed terminal assembly mechanism, a contact terminal assembly mechanism, a button and upper housing assembly mechanism, a detection mechanism, and a product unloading mechanism. The multi-station rotary table defines a lower housing loading station, a fixed terminal assembly station, a contact terminal assembly station, a component assembly station, a detection station, and a product unloading station arranged sequentially along the rotation direction. The lower housing loading mechanism, the fixed terminal assembly mechanism, the contact terminal assembly mechanism, the button and upper housing assembly mechanism, the detection mechanism, and the product unloading mechanism are respectively located at corresponding stations. The fixed terminal reversing mechanism has a fixed terminal reversing block that can rotate and switch between horizontal and vertical positions, and can stably move the fixed terminal in the horizontal state. The device switches to a vertical position for gripping and assembly; the contact terminal assembly mechanism can use the contact terminal feeding mechanism to separate the contact terminals one by one and push them out with the plug end facing down, so as to facilitate the gripping and assembly of the contact terminal pressing mechanism; it solves the problem of difficult gripping and assembly of thin metal sheet terminals, making it possible to assemble micro switches in the vertical direction, and improving assembly stability and assembly accuracy; in addition, the button and upper housing assembly mechanism realizes the pre-assembly of the button and upper housing, and assembles the whole as a component, which not only facilitates the positioning of the button and makes the assembly action more stable and reliable, but also optimizes the assembly process, allowing the use of a rotary worktable with fewer workstations, making the assembly equipment structure more compact, reducing equipment costs, and making the assembly cycle more compact and the assembly efficiency higher.

[0040] (2) The micro switch automated assembly equipment of the present invention includes a fixture assembly comprising a fixture mounting base, a positioning block, a clamping block and a clamping spring. The clamping block on one side of the clamping hole of the lower housing can clamp the lower housing, which facilitates the positioning of the lower housing and ensures the subsequent assembly accuracy. A pair of elastic conductive rods located below the clamping hole of the lower housing are also installed below the fixture mounting base, which facilitates the testing mechanism to perform power-on testing on the micro switch and improves the reliability of the testing.

[0041] (3) The micro switch automated assembly equipment of the present invention includes a lower housing feeding mechanism comprising a lower housing positioning and lifting mechanism and a lower housing gripping and placing mechanism. The lower housing positioning and lifting mechanism can push the lower housings one by one into the gripping slot of the lower housing gripping block. The lower housing is pushed out and pressed by the lower pressing block in the lower housing gripping and placing mechanism, so that the lower housing can be stably transferred into the clamping hole of the fixture assembly. The structure is simple and the feeding action is stable and reliable.

[0042] (4) In the micro switch automated assembly equipment of the present invention, in the fixed terminal assembly mechanism, the fixed terminal reversing mechanism uses a rotary cylinder to drive the fixed terminal reversing block to rotate and switch between the horizontal and vertical positions, so that the straight fixed terminal can be fed in a simpler horizontal state. At the same time, when switched to the vertical state, the fixed terminal ejection component can be used to eject the fixed terminal vertically, which is convenient for the fixed terminal pressing mechanism to grasp and press. The structure is simpler and the stability of the entire terminal feeding and pressing action is good.

[0043] (5) In the contact terminal assembly mechanism of the present invention, an upward slider is cleverly set on the contact terminal feeding slider. The upward slider moves up and down with the contact terminal feeding slider by means of the track groove structure. During the contact terminal feeding process, the L-shaped contact terminal can be lifted, so that the guiding accuracy is higher when the contact terminal is pushed out, which facilitates the gripping and pressing of the contact terminal and further improves the assembly stability of the contact terminal.

[0044] (6) In the micro switch automated assembly equipment of the present invention, the button feeding mechanism also adopts a button reversing block that can rotate and switch between horizontal and vertical positions in the button and upper housing assembly mechanism, so that the button can be transported horizontally and converted into a vertical assembly state, which further facilitates the gripping and installation of the button. The structure is simple and the assembly stability is good. In addition, the component gripping claw and the button gripping claw are installed on the same horizontal and vertical bidirectional motion component, which not only has a simple structure, but also can simultaneously perform button feeding and component assembly, resulting in higher assembly efficiency.

[0045] (7) In the micro switch automated assembly equipment of the present invention, the key triggering mechanism uses a trigger rod to press the key of the micro switch in the detection mechanism, so that the fixed terminal and the contact terminal make contact and conduction. At the same time, the detection conductive rod of the signal output mechanism realizes the connection between the micro switch and the detection circuit. The detection stability is good, the accuracy is high, and the defective products can be effectively reduced. In addition, a limit block is provided below the trigger slide. The upper end of the trigger rod is connected to the trigger slide by a thread to adjust the upper and lower relative positions of the lower end of the trigger rod and the limit block. This can ensure the stroke of the trigger rod pressing the key, prevent the micro switch from being over-pressured, and ensure the detection accuracy. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the three-dimensional structure of an existing micro switch;

[0047] Figure 2 for Figure 1 A cross-sectional view of a micro switch;

[0048] Figure 3 for Figure 1A schematic diagram of the disassembled structure of a micro switch;

[0049] Figure 4 This is a schematic diagram of the overall structure of an automated assembly equipment for micro switches according to the present invention;

[0050] Figure 5 This is a schematic diagram showing the distribution of the various assembly mechanisms around the rotary table in this invention;

[0051] Figure 6 This is a schematic diagram of the structure of the multi-station rotary table in this invention;

[0052] Figure 7 This is a schematic diagram of the turntable structure of the multi-station rotary worktable in this invention;

[0053] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure along the AA direction;

[0054] Figure 9 This is a three-dimensional structural diagram of the clamp assembly in this invention;

[0055] Figure 10 for Figure 9 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0056] Figure 11 This is a three-dimensional structural diagram of the lower housing feeding mechanism in this invention;

[0057] Figure 12 This is a schematic diagram of the upper shell gripping and placing mechanism in the lower shell feeding mechanism of the present invention;

[0058] Figure 13 This is a three-dimensional structural diagram of the fixed terminal assembly mechanism in this invention;

[0059] Figure 14 This is a schematic diagram of the fixed terminal reversing mechanism in the fixed terminal assembly mechanism of the present invention;

[0060] Figure 15 for Figure 14 Schematic diagram of the cross-sectional structure in the CC direction;

[0061] Figure 16 for Figure 15 A schematic diagram showing the fixed terminal commutator block switching to a horizontal state;

[0062] Figure 17 This is a schematic diagram of the fixed terminal pressing mechanism in the fixed terminal assembly mechanism of the present invention;

[0063] Figure 18 This is a schematic diagram of the overall three-dimensional structure of the contact terminal assembly mechanism in this invention;

[0064] Figure 19 This is a partial three-dimensional structural diagram of the contact terminal assembly mechanism in this invention;

[0065] Figure 20 This is a three-dimensional structural diagram of the contact terminal feeding mechanism in the contact terminal assembly mechanism of the present invention;

[0066] Figure 21 for Figure 20 Schematic diagram of the cross-sectional structure along the DD direction;

[0067] Figure 22 for Figure 21 A diagram showing the slider in the upward-lifted state;

[0068] Figure 23 This is a schematic diagram of the overall three-dimensional structure of the button and upper housing assembly mechanism in this invention;

[0069] Figure 24 This is a partial three-dimensional structural diagram of the button and upper housing assembly mechanism in this invention from one angle;

[0070] Figure 25 This is a partial three-dimensional structural diagram of the button and upper housing assembly mechanism in this invention from another angle;

[0071] Figure 26 This is a three-dimensional structural diagram of the button feeding mechanism in the button and upper housing assembly mechanism of the present invention;

[0072] Figure 27 This is a three-dimensional structural diagram of the upper housing assembly mechanism in the button and upper housing assembly mechanism of the present invention;

[0073] Figure 28 This is a three-dimensional structural diagram of the detection mechanism in this invention;

[0074] Figure 29 This is a cross-sectional view of the detection mechanism in this invention;

[0075] Figure 30 This is a three-dimensional structural diagram of the product feeding mechanism in this invention.

[0076] Explanation of the labels in the diagram:

[0077] 100. Micro switch; 101. Lower housing; 102. Fixed terminal; 103. Contact terminal; 104. Press button; 105. Upper housing;

[0078] 1. Multi-station rotary table; 1-1. Turntable; 1-2. Fixture assembly; 1-2-1. Fixture mounting base; 1-2-2. Positioning block; 1-2-2a. Lower housing clamping hole; 1-2-3. Clamping block; 1-2-4. Clamping spring; 1-2-5. Elastic conductive rod; 1-3. Turntable drive mechanism; 1A. Lower housing loading station; 1B. Fixed terminal assembly station; 1C. Contact terminal assembly station; 1D. Component assembly station; 1E. Inspection station; 1F. Product unloading station;

[0079] 2. Lower shell feeding mechanism; 21. Upper shell positioning and lifting mechanism; 21-1. Upper shell feeding and positioning platform; 21-2. Upper shell top block; 21-3. Upper shell lifting cylinder; 22. Upper shell gripping and placing mechanism; 22-1. Upper shell gripping block; 22-1a. Gripping groove; 22-2. Lower pressing block; 22-3. Upper shell lower pushing cylinder; 22-4. First longitudinal sliding block; 22-5. First longitudinal sliding cylinder; 22-6. First transverse sliding cylinder; 22-7. First transverse sliding block; 22-8. First fixed frame;

[0080] 3. Fixed terminal assembly mechanism; 31. Fixed terminal reversing mechanism; 31-1. Fixed terminal reversing block; 31-2. Fixed terminal ejection assembly; 31-2a. Ejector pin; 31-2b. Push rod; 31-2c. Ejector pin return spring; 31-3. First rotary cylinder; 31-4. Fixed terminal loading seat; 31-5. Fixed terminal discharge slider; 31-6. Fixed terminal discharge cylinder; 31-7. Fixed terminal push... 31-8. Sliding block; 31-9. Fixed terminal pushing cylinder; 32. First baffle plate; 32. Fixed terminal pressing mechanism; 32-1. Fixed terminal gripping block; 32-2. Push pin seat; 32-2a. Push pin; 32-3. Fixed terminal pressing cylinder; 32-4. Second longitudinal sliding block; 32-5. Second longitudinal cylinder; 32-6. Second transverse sliding block; 32-7. Second fixed frame; 32-8. Second transverse cylinder;

[0081] 4. Contact terminal assembly mechanism; 41. Contact terminal feeding mechanism; 41-1. Contact terminal loading seat; 41-1a. Track groove; 41-2. Contact terminal discharge slider; 41-3. Lifting slider; 41-3a. Roller; 41-4. Contact terminal discharge cylinder; 41-5. Contact terminal upper ejector pin; 41-6. Contact terminal upper ejector cylinder; 41-7. Contact terminal guide plate; 41-7a. Contact terminal guide hole; 42. Contact terminal pressing mechanism; 42-1. Contact terminal gripping block; 42-2. Pressing seat; 42-2a. Pressing push rod; 42-3. Contact terminal pressing cylinder; 42-4. Third longitudinal sliding block; 42-5. Third longitudinal sliding cylinder; 42-6. Third transverse sliding block; 42-7. Third fixing frame; 42-8. Third transverse sliding cylinder;

[0082] 5. Button and upper housing assembly mechanism; 51. Button feeding mechanism; 51-1. Component assembly table; 51-2. Component gripper; 51-3. Button gripper; 51-4. Fourth longitudinal slide; 51-5. Fourth longitudinal cylinder; 51-6. Fourth transverse slide; 51-7. Fourth transverse cylinder; 51-8. Button reversing block; 51-9. Button feeding seat; 51-10. Button discharge slider; 51- 11. Button-operated discharge cylinder; 51-12. Button-operated push slider; 51-13. Button-operated push cylinder; 51-14. Second rotary cylinder; 51-15. Second baffle plate; 52. Upper housing assembly mechanism; 52-1. Upper housing gripper; 52-2. Fifth transverse slide; 52-3. Fifth transverse cylinder; 52-4. Fifth longitudinal slide; 52-5. Fifth longitudinal cylinder; 52-6. Upper housing positioning seat;

[0083] 6. Detection mechanism; 61. Button triggering mechanism; 61-1. Trigger rod; 61-2. Trigger slide; 61-3. Limit block; 61-4. Trigger cylinder; 62. Signal output mechanism; 62-1. Detection conductive rod; 62-2. Conductive rod mounting base; 62-3. Detection lifting cylinder;

[0084] 7. Product unloading mechanism; 7-1. Unloading gripper; 7-2. Sixth longitudinal slide; 7-3. Sixth longitudinal cylinder; 7-4. Sixth transverse slide; 7-5. Sixth transverse cylinder. Detailed Implementation

[0085] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments.

[0086] [Example]

[0087] Combination Figure 4 and Figure 5 As shown, this embodiment of an automated microswitch assembly device includes...

[0088] A multi-station rotary table 1 defines a lower housing loading station 1A, a fixed terminal assembly station 1B, a contact terminal assembly station 1C, a component assembly station 1D, an inspection station 1E, and a product unloading station 1F arranged sequentially along the rotation direction. The turntable 1-1 of the multi-station rotary table 1 is provided with clamping assemblies 1-2 at equal angles along the circumference, corresponding to each of the aforementioned stations. Figure 6 and Figure 7 As shown, this embodiment specifically employs a six-station rotary table, with turntable 1-1 driven to rotate by turntable drive mechanism 1-3. The aforementioned multi-station rotary table 1 is an existing product, and its specific working principle will not be elaborated here.

[0089] The lower housing loading mechanism 2 is set at the lower housing loading station 1A and is used to place the lower housing 101 one by one onto the clamp assembly 1-2 that has been rotated to the lower housing loading station 1A with the assembly surface facing upward.

[0090] Fixed terminal assembly mechanism 3, which is located at fixed terminal assembly station 1B, includes fixed terminal reversing mechanism 31 and fixed terminal pressing mechanism 32. Fixed terminal reversing mechanism 31 has a fixed terminal reversing block 31-1 (e.g., a fixed terminal reversing block 31-1) that can rotate and switch between horizontal and vertical positions. Figures 13 to 16 As shown), the fixed terminal reversing block 31-1 also has a fixed terminal ejection assembly 31-2; the fixed terminal pressing mechanism 32 is used to grab the fixed terminal 102 from the fixed terminal reversing block 31-1 which has been rotated to the vertical position, and press it into the lower housing 101 which is conveyed by the lower housing loading station 1A.

[0091] The contact terminal assembly mechanism 4 is located at the contact terminal assembly station 1C and includes a contact terminal feeding mechanism 41 and a contact terminal pressing mechanism 42. The contact terminal feeding mechanism 41 is used to separate the contact terminals 103 one by one and push them out to the gripping position with the plug end facing down. The contact terminal pressing mechanism 42 is used to grip the contact terminals 103 from the gripping position and press them into the lower housing 101 conveyed from the fixed terminal assembly station 1B.

[0092] The button and upper housing assembly mechanism 5 is located at the component assembly station 1D and includes a button feeding mechanism 51 and an upper housing assembly mechanism 52. The button feeding mechanism 51 is used to place the push button 104 vertically on the component assembly table 51-1 (e.g., ...). Figures 23 to 27 As shown), the upper housing assembly mechanism 52 is used to place the upper housing 105 on the component assembly table 51-1 so that the upper housing 105 and the press button 104 are assembled together; wherein, the button feeding mechanism 51 also has a component gripping claw 51-2 that moves synchronously with the placement action of the press button 104. The component gripping claw 51-2 is used to grip the assembled upper housing 105 and the press button 104 together on the component assembly table 51-1 and press them onto the lower housing 101 conveyed from the contact terminal assembly station 1C;

[0093] The detection mechanism 6, which is located at the detection station 1E, includes a button triggering mechanism 61 and a signal output mechanism 62 (e.g., Figure 28 and Figure 29 As shown), the button triggering mechanism 61 is used to press the button 104 of the assembled micro switch 100 delivered from the component assembly station 1D, so that the spring arm of the contact terminal 103 contacts and conducts with the fixed terminal 102; the signal output mechanism 62 is located below the detection station 1E, and is used to contact the fixed terminal 102 and the contact terminal 103 respectively to connect the micro switch 100 to the detection circuit;

[0094] The product unloading mechanism 7 is located at the product unloading station 1F and is used to remove the assembled and inspected micro switch 100 from the fixture assembly 1-2 that has been rotated to the product unloading station 1F.

[0095] Specific reference Figure 8 and Figure 9 As shown, in this embodiment, the clamp assembly 1-2 includes a clamp mounting base 1-2-1, a positioning block 1-2-2, a clamping block 1-2-3, and a clamping spring 1-2-4. The positioning block 1-2-2 is fixedly mounted on the clamp mounting base 1-2-1, and the clamp mounting base 1-2-1 is fixedly mounted on the turntable 1-1. The positioning block 1-2-2 has a vertically penetrating lower housing clamping hole 1-2-2a. The clamping block 1-2-3 is located on one side of the lower housing clamping hole 1-2-2a. The clamping spring 1-2-4 is located between the clamping block 1-2-3 and the positioning block 1-2-2, and is used to maintain the clamping block 1-2-3 in an elastic tendency to move towards the lower housing clamping hole 1-2-2a. When the lower housing loading mechanism 2 places the lower housing 101 into the lower housing clamping hole 1-2-2a, the clamping block 1-2-3 elastically clamps the lower housing 101. This design utilizes the clamping block 1-2-3 on one side of the clamping hole 1-2-2a on the lower housing to clamp the lower housing 101, facilitating its positioning and ensuring subsequent assembly accuracy. Additionally, as... Figure 10 As shown, a pair of elastic conductive rods 1-2-5 are also installed below the clamping hole 1-2-2a of the lower housing, below the fixture mounting base 1-2-1. These rods are used to contact the lower ends of the fixed terminal 102 and the contact terminal 103 respectively during the detection process of the detection mechanism 6, facilitating the detection mechanism 6 to perform energization detection on the micro switch 100 and improving the reliability of the detection. The aforementioned elastic conductive rods 1-2-5 are existing products, mainly composed of an outer tube, a conductive core rod, a return spring, and a nut. The conductive core rod is located inside the outer tube, the return spring is sleeved on the conductive core rod and acts between the conductive core rod and the outer tube, and the nut is installed on the outer tube to limit the movement of the conductive core rod. During detection, the conductive core rod is pushed upward to contact the fixed terminal 102 and the contact terminal 103, thereby realizing the connection between the micro switch 100 and the detection circuit.

[0096] Reference Figure 11 and Figure 12 As shown, in this embodiment, the lower housing loading mechanism 2 includes a lower housing positioning and lifting mechanism 21 and a lower housing gripping and placing mechanism 22, wherein:

[0097] The lower housing positioning and lifting mechanism 21 includes a lower housing loading and positioning platform 21-1, a lower housing top block 21-2, and a lower housing lifting cylinder 21-3. The lower housing loading and positioning platform 21-1 is connected to the lower housing screw feeder via a direct vibration connection, so that the lower housing 101 is arranged in an orderly manner with the assembly surface facing upward and enters the positioning groove of the lower housing loading and positioning platform 21-1. The lower housing top block 21-2 is installed at the bottom of the positioning groove of the lower housing loading and positioning platform 21-1. The lower housing lifting cylinder 21-3 is connected to the lower housing top block 21-2 and is used to drive the lower housing top block 21-2 to move up and down, thereby pushing the lower housing 101 out of the positioning groove.

[0098] The lower housing gripping and placing mechanism 22 includes a lower housing gripping block 22-1 mounted on the first transverse and longitudinal bidirectional motion assembly. The lower housing gripping block 22-1 has a gripping groove 22-1a that extends vertically. The size of the gripping groove 22-1a is adapted to the lower housing 101. A lower pressing block 22-2 is provided in the gripping groove 22-1a. The lower pressing block 22-2 is provided with a lower housing pushing cylinder 22-3 for moving the lower pressing block 22-2 up and down. During operation, the first transverse and longitudinal bidirectional motion assembly moves the lower pressing block 22-2 to above the lower housing loading and positioning platform 21-1. The lower pressing block 22-2 moves downward to contact the lower housing loading positioning table 21-1, and then the lower housing top block 21-2 moves upward, pushing the lower housing 101 into the gripping groove 22-1a of the lower housing gripping block 22-1. Then, using the first horizontal and vertical bidirectional motion component, it moves to above the clamping assembly 1-2 at the lower housing loading station 1A. After the lower housing gripping block 22-1 contacts the clamping assembly 1-2, the lower housing pushing cylinder 22-3 drives the lower pressing block 22-2 to press the lower housing 101 into the lower housing clamping hole 1-2-2a of the clamping assembly 1-2. Using the above-described lower housing loading mechanism 2, the lower housing can be stably transferred into the clamping hole of the clamping assembly 1-2. The structure is simple, and the loading action is stable and reliable. Specifically, the aforementioned first bidirectional motion assembly includes a first longitudinal sliding block 22-4, a first longitudinal cylinder 22-5, a first transverse cylinder 22-6, a first transverse sliding block 22-7, and a first fixed frame 22-8. The lower housing gripping block 22-1 and the lower housing push-down cylinder 22-3 are respectively mounted on the first longitudinal sliding block 22-4. The first longitudinal sliding block 22-4 is mounted on the drive end of the first longitudinal cylinder 22-5, which drives the lower housing gripping block 22-1 to move up and down. The first longitudinal cylinder 22-5 is mounted on the first transverse sliding block 22-7, which is horizontally slidably mounted on the first fixed frame 22-8. The first transverse cylinder 22-6 is installed between the first transverse sliding block 22-7 and the first fixed frame 22-8, which drives the lower housing gripping block 22-1 to move horizontally.

[0099] Reference Figure 13 and Figure 17As shown, in the aforementioned fixed terminal assembly mechanism 3, the fixed terminal reversing mechanism 31 further includes a first rotary cylinder 31-3, a fixed terminal loading seat 31-4, a fixed terminal unloading slider 31-5, a fixed terminal unloading cylinder 31-6, a fixed terminal pushing slider 31-7, and a fixed terminal pushing cylinder 31-8. The first rotary cylinder 31-3 is connected to the fixed terminal reversing block 31-1 and is used to drive the fixed terminal reversing block 31-1 to rotate and switch between horizontal and vertical positions. The fixed terminal loading seat 31-4 is located on one side of the fixed terminal reversing block 31-1. The fixed terminal feeding seat 31-4 has a push slide opposite to the horizontal fixed terminal reversing block 31-1. The fixed terminal discharge slider 31-5 is perpendicular to the push slide and is mounted on the fixed terminal feeding seat 31-4. The fixed terminal discharge cylinder 31-6 is connected to the fixed terminal discharge slider 31-5 and is used to drive the feeding groove on the fixed terminal discharge slider 31-5 to switch between the receiving position and the feeding position. The receiving position of the fixed terminal feeding seat 31-4 is connected to the fixed terminal direct vibration feeder, which can move the fixed terminal 102 from the receiving position to the feeding position. A fixed terminal pusher slider 31-7 is mounted on a fixed terminal feeder 31-4 along a pusher slide. A fixed terminal pusher cylinder 31-8 is connected to the fixed terminal pusher slider 31-7 and is used to push the fixed terminal 102 in the feed groove of the fixed terminal discharge slider 31-5 into the feed hole of the horizontally positioned fixed terminal reversing block 31-1 via the pusher slide. The fixed terminal ejection assembly 31-2 has an ejector pin 31-2a located in the feed hole. A first baffle plate 31-9 (e.g., ...) is also present during the rotation stroke of the fixed terminal reversing block 31-1. Figure 14 As shown), the first baffle plate 31-9 can prevent the fixed terminal 102 from dislodging from the feed hole when it rotates from a horizontal state to a vertical state. Figure 15 As shown, a return spring 31-2c is fitted on the ejector pin 31-2a, which keeps the ejector pin 31-2a tending to retract inward. At the lower end of the ejector pin 31-2a, there is also a push rod 31-2b that extends outward from the lower end of the fixed terminal reversing block 31-1. When the fixed terminal reversing block 31-1 rotates to the vertical position, the fixed terminal 102 can be pushed outward by the ejector pin 31-2a through the push rod 31-2b.

[0100] like Figure 17As shown, the fixed terminal pressing mechanism 32 includes a fixed terminal gripping block 32-1 mounted on the second horizontal and vertical bidirectional motion assembly. A push pin seat 32-2 is provided above the fixed terminal gripping block 32-1. A push pin 32-2a located inside the fixed terminal gripping block 32-1 is mounted on the push pin seat 32-2. The push pin seat 32-2 is connected to the fixed terminal pressing cylinder 32-3. During the fixed terminal gripping process, the fixed terminal gripping block 32-1 moves above the fixed terminal reversing block 31-1, which is in a vertical position. Then, the push rod 31-2b moves upward under the downward pushing force, pushing the fixed terminal 102 into the fixed terminal gripping block 32-1. Afterward, the second horizontal and vertical bidirectional motion component drives the fixed terminal gripping block 32-1 to move above the clamping component 1-2 at the fixed terminal assembly station 1B. The fixed terminal pressing cylinder 32-3 drives the push pin seat 32-2 to move downward, using the push pin 32-2a to press the fixed terminal 102 into the lower housing 101. By adopting the above-described fixed terminal assembly mechanism 3, the straight fixed terminal 102 can be fed in a simpler horizontal state. At the same time, when switching to the vertical state, the fixed terminal ejection component 31-2 can push the fixed terminal 102 vertically out, which facilitates the gripping and pressing of the fixed terminal pressing mechanism 32. The structure is simpler, and the stability of the entire terminal feeding and pressing action is good. The structure of the second bidirectional motion assembly described above is similar to that of the first bidirectional motion assembly, including a second longitudinal slide block 32-4, a second longitudinal cylinder 32-5, a second transverse slide block 32-6, a second fixing frame 32-7, and a second transverse cylinder 32-8. A fixing terminal gripping block 32-1 and a fixing terminal pressing cylinder 32-3 are respectively mounted on the second longitudinal slide block 32-4. A push pin seat 32-2 is slidably mounted on the second longitudinal slide block 32-4. Installed on the drive end of the second longitudinal cylinder 32-5, the second longitudinal cylinder 32-5 drives the fixed terminal gripping block 32-1 to move up and down. The second longitudinal cylinder 32-5 is installed on the second transverse slide 32-6. The second transverse slide 32-6 is horizontally slidably installed on the second fixed frame 32-7. The second transverse cylinder 32-8 is installed between the second transverse slide 32-6 and the second fixed frame 32-7. The second transverse cylinder 32-8 drives the fixed terminal gripping block 32-1 to move horizontally.

[0101] Reference Figure 18 and Figure 22As shown, in the contact terminal assembly mechanism 4 described above, the contact terminal feeding mechanism 41 includes a contact terminal feeding seat 41-1, a contact terminal discharging slider 41-2, an upward slider 41-3, a contact terminal discharging cylinder 41-4, a contact terminal upper ejector pin 41-5, a contact terminal upper ejector cylinder 41-6, and a contact terminal guide plate 41-7. The contact terminal discharging slider 41-2 is horizontally slidably mounted on the contact terminal feeding seat 41-1. The contact terminal discharging cylinder 41-4 is connected to the contact terminal discharging slider 41-2 and is used to drive the contact terminal discharging slider 41-2 to switch between the receiving position and the feeding position. The receiving position of the contact terminal feeding seat 41-1 is connected to the direct vibration feeder of the contact terminal 103, and the contact terminals 103 are arranged into the receiving position. The contact terminal guide plate 41-7 is located on the upper part of the contact terminal feeding seat 41-1, and is positioned above the contact terminal feeding seat 41-1. The guide plate 41-7 has a contact terminal guide hole 41-7a corresponding to the feeding position; the lifting slider 41-3 is vertically slidably mounted on the contact terminal discharge slider 41-2. The lifting slider 41-3 has a material groove for receiving the contact terminal 103. The contact terminal upper seat 41-1 has a track groove 41-1a, which is divided into a horizontal section and an inclined section. The lifting slider 41-3 is provided with a roller 41-3a located in the track groove 41-1a. When the contact terminal discharge cylinder 41-4 drives the contact terminal discharge slider 41-2 to move from the receiving position to the feeding position, the lifting slider 41-3 moves upward and approaches the contact terminal guide plate 41-7 under the action of the track groove 41-1a, so that the upper end of the contact terminal 103 is closer to the contact terminal guide hole 41-7a, and the guiding accuracy is higher when the contact terminal 103 is ejected. The upper ejector pin 41-5 of the contact terminal is installed below the contact terminal feeder 41-1 and is positioned opposite to the contact terminal guide hole 41-7a. The upper ejector pin 41-5 of the contact terminal is connected to the upper ejector cylinder 41-6 of the contact terminal and is used to push the contact terminal 103 on the lifting slider 41-3 upward through the contact terminal guide hole 41-7a. Figure 21 The diagram shows the state where the lifting slider 41-3 is in the aforementioned receiving position, at which time the contact terminal 103 can enter the material groove of the lifting slider 41-3; Figure 22 The diagram shows the lifting slider 41-3 in the feeding position. At this time, the lifting slider 41-3 is raised upward and close to the contact terminal guide plate 41-7. At the same time, the ejector pin 41-5 on the contact terminal is positioned opposite to the ejector hole in the lifting slider 41-3. The upper cylinder 41-6 of the contact terminal can drive the upper ejector pin 41-5 of the contact terminal to move upward and push the contact terminal 103 upward.

[0102] like Figure 19As shown, the contact terminal pressing mechanism 42 includes a contact terminal gripping block 42-1 mounted on a third bidirectional motion assembly. A pressing seat 42-2 is located above the contact terminal gripping block 42-1, and a pressing push rod 42-2a located within the contact terminal gripping block 42-1 is mounted on the pressing seat 42-2. The pressing seat 42-2 is connected to a contact terminal pressing cylinder 42-3. During the contact terminal gripping and pressing process, the contact terminal gripping block 42-1 moves above the contact terminal guide hole 41-7a, and then the contact terminal ejector pin 41-5 moves upward to push the contact terminal 103 into the contact terminal gripping block 42-1. Afterward, the third bidirectional motion assembly moves the contact terminal gripping block 42-1 to above the clamp assembly 1-2 at the contact terminal assembly station 1C. The contact terminal pressing cylinder 42-3 moves the pressing seat 42-2 downward, and the pressing push rod 42-2a presses the contact terminal 103 into the lower housing 101. The aforementioned contact terminal assembly mechanism 4 cleverly incorporates an upward sliding block 41-3 on the contact terminal feeding slider 41-2. Utilizing a track groove structure, the upward sliding block 41-3 moves up and down with the contact terminal feeding slider 41-2. During the contact terminal feeding process, this allows for L-shaped upward lifting of the contact terminal, resulting in higher guiding accuracy when the contact terminal 103 is ejected. This facilitates the gripping and pressing of the contact terminal 103, further improving the assembly stability of the contact terminal 103. The aforementioned third bidirectional motion assembly includes a third longitudinal sliding block 42-4, a third longitudinal cylinder 42-5, a third transverse sliding block 42-6, a third fixed frame 42-7, and a third transverse cylinder 42-8. The contact terminal gripping block 42-1 and the contact terminal pressing cylinder 42-3 are respectively mounted on the third longitudinal sliding block 42-4. The pressing block 42-2 is slidably mounted on the third longitudinal sliding block 42-4, and the third longitudinal sliding block 42-4 is mounted on the third longitudinal cylinder 42-8. On the drive end of 2-5, the third longitudinal cylinder 42-5 drives the contact terminal gripping block 42-1 to move up and down. The third longitudinal cylinder 42-5 is installed on the third transverse slide 42-6. The third transverse slide 42-6 is horizontally slidably installed on the third fixed frame 42-7. The third transverse cylinder 42-8 is installed between the third transverse slide 42-6 and the third fixed frame 42-7. The third transverse cylinder 42-8 drives the contact terminal gripping block 42-1 to move horizontally.

[0103] Reference Figure 23 and Figure 27As shown, in the above-mentioned button and upper housing assembly mechanism 5, the button feeding mechanism 51 further includes a button gripper 51-3, a button reversing block 51-8, a button feeding seat 51-9, a button discharge slider 51-10, a button discharge cylinder 51-11, a button pushing slider 51-12, a button pushing cylinder 51-13, and a second rotary cylinder 51-14. The second rotary cylinder 51-14 is connected to the button reversing block 51-8 and is used to drive the button reversing block 51-8 to rotate and switch between horizontal and vertical positions. The button feeding seat 51-9 is located on one side of the button reversing block 51-8 and has a button slide rail opposite to the horizontally positioned button reversing block 51-8. The button discharge slider 51-10 is located perpendicular to the button slide rail on the button feeding seat 51-9. Above, the button discharge cylinder 51-11 is connected to the button discharge slider 51-10, and is used to drive the discharge groove on the button discharge slider 51-10 to switch between the receiving position and the feeding position; the button push slider 51-12 is set on the button loading seat 51-9 along the button slide direction, and the button push cylinder 51-13 is connected to the button push slider 51-12, and is used to push the press key 104 in the discharge groove of the button discharge slider 51-10 through the button slide into the material hole of the button reversing block 51-8 in the horizontal position. The button reversing block 51-8 also has a button ejection component for pushing the press key 104 outward in the vertical position; similar to the structure of the fixed terminal reversing mechanism 31, a second baffle plate 51-15 (such as) is also provided in the rotation stroke of the button reversing block 51-8. Figure 26As shown, the second baffle plate 51-15 prevents the press key 104 from dislodging from the material hole when it rotates from a horizontal to a vertical position. The receiving position of the button feeding seat 51-9 is connected to the direct vibration feeder of the press key 104. The press key 104 enters the material groove of the button discharge slider 51-10 in a horizontal position, and the button discharge slider 51-10 drives the press key 104 to move to the feeding position. At this time, the button push slider 51-12 pushes the press key 104 into the material hole of the horizontal button reversing block 51-8. The button reversing block 51-8 drives the press key 104 to rotate to a vertical position. At this time, the button ejection component in the button reversing block 51-8 can push the press key 104 upward for easy gripping. The structure of the above-mentioned button ejection component is similar to that of the above-mentioned fixed terminal ejection component 31-2, and will not be described again here. The button gripper 51-3 is mounted on the fourth horizontal and vertical bidirectional motion assembly and is used to grip the button 104 on the button reversing block 51-8 in the vertical position and place it on the component assembly table 51-1; the component gripper 51-2 is also mounted on the fourth horizontal and vertical bidirectional motion assembly and is used to move the assembled components on the component assembly table 51-1 together to the fixture assembly 1-2 at the component assembly station 1D to complete the final assembly of the micro switch 100. The aforementioned fourth bidirectional motion assembly includes a fourth longitudinal slide block 51-4, a fourth longitudinal cylinder 51-5, a fourth transverse slide block 51-6, and a fourth transverse cylinder 51-7. The component gripping jaw 51-2 and the button gripping jaw 51-3 are respectively mounted on the fourth longitudinal slide block 51-4. The fourth longitudinal slide block 51-4 is slidably mounted on the fourth transverse slide block 51-6. The fourth longitudinal cylinder 51-5 is mounted on the fourth transverse slide block 51-6 and connected to the fourth longitudinal slide block 51-4, used to drive the component gripping jaw 51-2 and the button gripping jaw 51-3 to move up and down. The fourth transverse slide block 51-6 is slidably mounted on the fourth fixed frame. The fourth transverse cylinder 51-7 is mounted on the fourth fixed frame and connected to the fourth transverse slide block 51-6, used to drive the component gripping jaw 51-2 and the button gripping jaw 51-3 to move horizontally.

[0104] Combination Figure 27As shown, the upper housing assembly mechanism 52 includes an upper housing gripper 52-1 and an upper housing positioning seat 52-6. The upper housing gripper 52-1 is mounted on the fifth horizontal and vertical bidirectional motion assembly and is used to grip the upper housing 105 on the upper housing positioning seat 52-6 and place it on the assembly table 51-1. The upper housing positioning seat 52-6 is connected to the vertical vibration feeder of the upper housing 105. The upper housing 105 can be arranged into the positioning groove of the upper housing positioning seat 52-6. The upper housing gripper 52-1 adopts a pneumatic gripper. The fifth transverse and longitudinal bidirectional motion assembly includes a fifth transverse slide 52-2, a fifth transverse cylinder 52-3, a fifth longitudinal slide 52-4, and a fifth longitudinal cylinder 52-5. The upper housing gripper 52-1 is mounted on the fifth transverse slide 52-2. The fifth transverse slide 52-2 is horizontally slidably mounted on the fifth longitudinal slide 52-4. The fifth transverse cylinder 52-3 is mounted on the fifth longitudinal slide 52-4 and connected to the fifth transverse slide 52-2, and is used to drive the upper housing gripper 52-1 to move horizontally. The fifth longitudinal slide 52-4 is vertically slidably mounted on the fifth fixed frame. The fifth longitudinal cylinder 52-5 is mounted on the fifth fixed frame and connected to the fifth longitudinal slide 52-4, and is used to drive the upper housing gripper 52-1 to move up and down. Using the aforementioned button and upper housing assembly mechanism 5, the button feeding mechanism 51 also employs a button reversing block 51-8 that can rotate and switch between horizontal and vertical positions, enabling the buttons to be transported horizontally and converted to a vertical assembly state, further facilitating the gripping and installation of the press button 104. The structure is simple and the assembly stability is good. Furthermore, the component gripping claw 51-2 and the button gripping claw 51-3 are mounted on the same horizontal and vertical bidirectional motion component, which not only has a simple structure but also enables the simultaneous feeding of the press button and the assembly of the component, resulting in higher assembly efficiency.

[0105] Reference Figure 28 and Figure 29As shown, in the aforementioned detection mechanism 6, the button triggering mechanism 61 is located above the turntable 1-1, including a trigger rod 61-1, a trigger slide 61-2, and a trigger cylinder 61-4. The trigger rod 61-1 is mounted on the trigger slide 61-2, and the trigger cylinder 61-4 is connected to the trigger slide 61-2 to drive the trigger rod 61-1 to move up and down. The signal output mechanism 62 is located below the turntable 1-1, including a detection conductive rod 62-1, a conductive rod mounting base 62-2, and a detection lifting cylinder 62-3. There are two sets of detection conductive rods 62-1, each mounted on the conductive rod mounting base 62-2. The detection lifting cylinder 62-3 is connected to the conductive rod mounting base 62-2 to drive the detection conductive rod 62-1 to move up and down. In this embodiment, the detection conductive rod 62-1 has the same structure as the elastic conductive rod 1-2-5. After the assembled microswitch moves to the detection station 1E, the trigger cylinder 61-4 drives the trigger rod 61-1 to move downward, causing the pressing button 104 to move downward by one pressing stroke, so that the two terminals make contact and conduction. At the same time, the detection lifting cylinder 62-3 drives the detection conductive rod 62-1 to move upward to contact the elastic conductive rod 1-2-5, so that the elastic conductive rod 1-2-5 moves upward to contact the fixed terminal 102 and the contact terminal 103 respectively. The detection conductive rod 62-1 is connected to the detection circuit, thereby connecting the microswitch 100 to be tested into the detection circuit. If the circuit is detected to be normally conductive, it means that the microswitch 100 is normal. During the detection process, the trigger rod 61-1 can be repeatedly controlled to move multiple times to check whether the microswitch 100 can be reset normally. If the circuit is detected to be non-conductive, it means that the microswitch 100 is a defective product and is rejected in the subsequent process. The aforementioned detection mechanism 6 offers good detection stability and high accuracy, effectively reducing defective products. To further improve detection accuracy, a limiting block 61-3 is provided below the trigger slide 61-2. The limiting block 61-3 can press down on the micro switch 100. The upper end of the trigger rod 61-1 is threadedly connected to the trigger slide 61-2, used to adjust the relative position of the lower end of the trigger rod 61-1 and the limiting block 61-3. This facilitates adjustment of the detection stroke of the micro switch 100, prevents over-pressure on the micro switch, and ensures detection accuracy.

[0106] like Figure 30As shown, the product unloading mechanism 7 includes an unloading gripper 7-1, which is mounted on the sixth bidirectional motion assembly. The gripper 7-1 is used to remove the microswitch 100 from the product unloading station 1F, allowing the vacant fixture assembly 1-2 to rotate to the lower housing loading station 1A. If the inspection mechanism 6 detects that the microswitch 100 is defective, the product unloading mechanism 7 can place the microswitch 100 into the defective product placement port. The aforementioned sixth bidirectional motion assembly includes a sixth longitudinal slide 7-2, a sixth longitudinal cylinder 7-3, a sixth transverse slide 7-4, and a sixth transverse cylinder 7-5. The unloading gripper 7-1 is a pneumatic gripper, which is mounted on the sixth longitudinal slide 7-2. The sixth longitudinal slide 7-2 is mounted on the drive end of the sixth longitudinal cylinder 7-3, which drives the unloading gripper 7-1 to move up and down. The sixth longitudinal cylinder 7-3 is mounted on the sixth transverse slide 7-4, which is horizontally slidably mounted on the sixth fixed frame. The sixth transverse cylinder 7-5 is mounted on the sixth fixed frame and connected to the sixth transverse slide 7-4, used to drive the unloading gripper 7-1 to move horizontally.

[0107] This invention provides an automated assembly equipment for micro switches, which solves the problem of difficult gripping and assembly of thin metal terminals, making it possible to assemble micro switches in the vertical direction and improving assembly stability and accuracy. In addition, the pre-assembly of the button and upper housing is achieved through the button and upper housing assembly mechanism, and the whole is assembled as a component. This not only facilitates button positioning and makes the assembly action more stable and reliable, but also optimizes the assembly process. It can use a rotary table with fewer workstations, making the assembly equipment structure more compact, reducing equipment costs, and making the assembly cycle more compact and the assembly efficiency higher.

[0108] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An automated assembly equipment for micro switches, characterized in that: include A multi-station rotary table (1) defines a lower housing loading station (1A), a fixed terminal assembly station (1B), a contact terminal assembly station (1C), a component assembly station (1D), an inspection station (1E), and a product unloading station (1F) arranged circumferentially along the rotation direction. The turntable (1-1) of the multi-station rotary table (1) is provided with clamping components (1-2) corresponding to each of the above stations at equal angles circumferentially. The lower housing loading mechanism (2) is set at the lower housing loading station (1A) and is used to place the lower housing (101) one by one with the assembly surface facing up onto the clamp assembly (1-2) that has been rotated to the lower housing loading station (1A). A fixed terminal assembly mechanism (3) is provided at a fixed terminal assembly station (1B) and includes a fixed terminal reversing mechanism (31) and a fixed terminal pressing mechanism (32). The fixed terminal reversing mechanism (31) has a fixed terminal reversing block (31-1) that can rotate and switch between a horizontal position and a vertical position. The fixed terminal reversing block (31-1) also has a fixed terminal ejection assembly (31-2). The fixed terminal pressing mechanism (32) is used to grab a fixed terminal (102) from the fixed terminal reversing block (31-1) that has been rotated to a vertical position and press it into the lower housing (101) that is conveyed by the lower housing loading station (1A). The contact terminal assembly mechanism (4) is located at the contact terminal assembly station (1C) and includes a contact terminal feeding mechanism (41) and a contact terminal pressing mechanism (42). The contact terminal feeding mechanism (41) is used to separate the contact terminals (103) one by one and push them out to the gripping position with the plug end facing down. The contact terminal pressing mechanism (42) is used to grip the contact terminals (103) from the gripping position and press them into the lower housing (101) conveyed by the fixed terminal assembly station (1B). A button and upper housing assembly mechanism (5) is provided at the component assembly station (1D), including a button feeding mechanism (51) and an upper housing assembly mechanism (52). The button feeding mechanism (51) is used to place the button (104) vertically on the component assembly table (51-1), and the upper housing assembly mechanism (52) is used to place the upper housing (105) on the component assembly table (51-1) so that the upper housing (105) and the button (104) are assembled together. The button feeding mechanism (51) also has a component gripping gripper (51-2) that moves synchronously with the button (104) placement action. The component gripping gripper (51-2) is used to grip the assembled upper housing (105) and the button (104) together on the component assembly table (51-1) and press them onto the lower housing (101) conveyed from the contact terminal assembly station (1C). The detection mechanism (6), which is set at the detection station (1E), includes a button triggering mechanism (61) and a signal output mechanism (62). The button triggering mechanism (61) is used to press the button (104) of the assembled micro switch (100) delivered from the component assembly station (1D) so that the spring arm of the contact terminal (103) contacts the fixed terminal (102) to conduct electricity. The signal output mechanism (62) is located below the detection station (1E) and is used to contact the fixed terminal (102) and the contact terminal (103) respectively to connect the micro switch (100) to the detection circuit. The product unloading mechanism (7) is located at the product unloading station (1F) and is used to remove the assembled and inspected micro switch (100) from the fixture assembly (1-2) that has been rotated to the product unloading station (1F).

2. The automated assembly equipment for micro switches according to claim 1, characterized in that: The clamp assembly (1-2) includes a clamp mounting base (1-2-1), a positioning block (1-2-2), a clamping block (1-2-3), and a clamping spring (1-2-4). The positioning block (1-2-2) is fixedly mounted on the clamp mounting base (1-2-1). The positioning block (1-2-2) has a vertically penetrating lower housing clamping hole (1-2-2a). The clamping block (1-2-3) is located in the lower housing clamping hole (1-2-2a). On one side of the lower housing, the clamping spring (1-2-4) is located between the clamping block (1-2-3) and the positioning block (1-2-2) to keep the clamping block (1-2-3) moving in the direction of the clamping hole (1-2-2a) of the lower housing. When the lower housing feeding mechanism (2) places the lower housing (101) in the clamping hole (1-2-2a) of the lower housing, the clamping block (1-2-3) elastically clamps the lower housing (101).

3. The automated assembly equipment for micro switches according to claim 2, characterized in that: Below the fixture mounting base (1-2-1), a pair of elastic conductive rods (1-2-5) located below the clamping hole (1-2-2a) of the lower housing are also installed, which are used to contact the lower ends of the fixed terminal (102) and the contact terminal (103) respectively during the detection process of the detection mechanism (6).

4. The automated assembly equipment for micro switches according to claim 1, characterized in that: The lower housing loading mechanism (2) includes a lower housing positioning and lifting mechanism (21) and a lower housing gripping and placing mechanism (22), wherein: The lower housing positioning and lifting mechanism (21) includes a lower housing loading and positioning platform (21-1), a lower housing top block (21-2), and a lower housing lifting cylinder (21-3). The lower housing top block (21-2) is installed at the bottom of the positioning groove of the lower housing loading and positioning platform (21-1). The lower housing lifting cylinder (21-3) is connected to the lower housing top block (21-2) and is used to drive the lower housing top block (21-2) to move up and down. The lower housing gripping and placement mechanism (22) includes a lower housing gripping block (22-1) mounted on the first transverse and longitudinal bidirectional motion assembly. The lower housing gripping block (22-1) has a gripping groove (22-1a) that runs vertically through the lower housing. A pressing block (22-2) is provided in the gripping groove (22-1a). A lower housing pushing cylinder (22-3) is provided on the pressing block (22-2) for driving the pressing block (22-2) to move up and down.

5. The automated assembly equipment for micro switches according to claim 1, characterized in that: In the fixed terminal assembly mechanism (3), The fixed terminal reversing mechanism (31) further includes a first rotary cylinder (31-3), a fixed terminal loading seat (31-4), a fixed terminal unloading slider (31-5), a fixed terminal unloading cylinder (31-6), a fixed terminal pushing slider (31-7), and a fixed terminal pushing cylinder (31-8). The first rotary cylinder (31-3) is connected to the fixed terminal reversing block (31-1) and is used to drive the fixed terminal reversing block (31-1) to rotate and switch between horizontal and vertical positions. The fixed terminal loading seat (31-4) is located on one side of the fixed terminal reversing block (31-1) and has a pushing slide opposite to the horizontally positioned fixed terminal reversing block (31-1). The fixed terminal unloading slider (31-5) is perpendicular to the pushing slide. A feeding slide is provided on a fixed terminal feeding seat (31-4). The fixed terminal discharge cylinder (31-6) is connected to the fixed terminal discharge slider (31-5) and is used to drive the feeding groove on the fixed terminal discharge slider (31-5) to switch between the receiving position and the feeding position. The fixed terminal push slider (31-7) is provided on the fixed terminal feeding seat (31-4) along the push slide direction. The fixed terminal push cylinder (31-8) is connected to the fixed terminal push slider (31-7) and is used to push the fixed terminal (102) in the feeding groove of the fixed terminal discharge slider (31-5) into the material hole of the fixed terminal reversing block (31-1) in the horizontal position through the push slide. The fixed terminal ejection assembly (31-2) has an ejector pin (31-2a) located in the material hole. The fixed terminal pressing mechanism (32) includes a fixed terminal gripping block (32-1) mounted on the second horizontal and vertical bidirectional motion assembly. A push pin seat (32-2) is provided above the fixed terminal gripping block (32-1). A push pin (32-2a) located inside the fixed terminal gripping block (32-1) is mounted on the push pin seat (32-2). The push pin seat (32-2) is connected to the fixed terminal pressing cylinder (32-3).

6. The automated assembly equipment for micro switches according to claim 1, characterized in that: In the contact terminal assembly mechanism (4), The contact terminal feeding mechanism (41) includes a contact terminal feeding seat (41-1), a contact terminal discharging slider (41-2), an upward slider (41-3), a contact terminal discharging cylinder (41-4), a contact terminal upper ejector pin (41-5), a contact terminal upper ejector cylinder (41-6), and a contact terminal guide plate (41-7). The contact terminal discharging slider (41-2) is horizontally slidably mounted on the contact terminal feeding seat (41-1). The contact terminal discharging cylinder (41-4) is connected to the contact terminal discharging slider (41-2) and is used to drive the contact terminal discharging slider (41-2) to switch between the receiving position and the feeding position. The contact terminal guide plate (41-7) is located on the upper part of the contact terminal feeding seat (41-1) and has a contact terminal guide hole (41-7a) corresponding to the feeding position. The upward slider (41-3) slides vertically. The contact terminal feeding block (41-2) is mounted on the contact terminal feeding slider (41-2). The contact terminal feeding base (41-1) has a track groove (41-1a). The lifting slider (41-3) is provided with a roller (41-3a) located in the track groove (41-1a). When the contact terminal feeding cylinder (41-4) drives the contact terminal feeding slider (41-2) to move from the receiving position to the feeding position, the lifting slider (41-3) moves in the track groove (41-1a). Under the action of ), it moves upward and approaches the contact terminal guide plate (41-7); the contact terminal upper ejector pin (41-5) is installed below the contact terminal feeding seat (41-1) and is opposite to the contact terminal guide hole (41-7a). The contact terminal upper ejector pin (41-5) is connected to the contact terminal upper lifting cylinder (41-6) and is used to push the contact terminal (103) on the lifting slider (41-3) upward through the contact terminal guide hole (41-7a); The contact terminal pressing mechanism (42) includes a contact terminal gripping block (42-1) mounted on the third transverse and longitudinal bidirectional motion assembly. A pressing seat (42-2) is provided above the contact terminal gripping block (42-1). A pressing push rod (42-2a) located inside the contact terminal gripping block (42-1) is mounted on the pressing seat (42-2). The pressing seat (42-2) is connected to the contact terminal pressing cylinder (42-3).

7. The automated assembly equipment for micro switches according to claim 1, characterized in that: In the button and upper housing assembly mechanism (5), The button feeding mechanism (51) further includes a button gripper (51-3), a button reversing block (51-8), a button feeding seat (51-9), a button discharge slider (51-10), a button discharge cylinder (51-11), a button push slider (51-12), a button push cylinder (51-13), and a second rotary cylinder (51-14). The second rotary cylinder (51-14) is connected to the button reversing block (51-8) and is used to drive the button feeder. The button reversing block (51-8) can rotate between horizontal and vertical positions. The button feeding seat (51-9) is located on one side of the button reversing block (51-8). The button feeding seat (51-9) has a button slide rail opposite to the horizontally positioned button reversing block (51-8). The button discharge slider (51-10) is perpendicular to the button slide rail and is located on the button feeding seat (51-9). The button discharge cylinder (51-11) is connected to the button discharge slider (51-10). The button pusher (51-12) is positioned on the button feeder (51-9) along the button slide rail direction. The button pusher cylinder (51-13) is connected to the button pusher (51-12) and is used to push the button (104) in the discharge slot of the button pusher (51-10) through the button slide rail into the horizontal position of the button reversing block (51-9). Inside the feed hole of -8), the key reversing block (51-8) also has a key ejection component for pushing the press key (104) outward in a vertical position; the key gripping claw (51-3) is installed on the fourth horizontal and vertical bidirectional motion component for gripping the press key (104) on the key reversing block (51-8) in a vertical position and placing it on the component assembly table (51-1); the component gripping claw (51-2) is also installed on the fourth horizontal and vertical bidirectional motion component; The upper housing assembly mechanism (52) includes an upper housing gripper (52-1) and an upper housing positioning seat (52-6). The upper housing gripper (52-1) is mounted on the fifth horizontal and vertical bidirectional motion component and is used to grip the upper housing (105) on the upper housing positioning seat (52-6) and place it on the component assembly table (51-1).

8. The automated assembly equipment for micro switches according to claim 1, characterized in that: In the detection mechanism (6), the button triggering mechanism (61) is located above the turntable (1-1), including a trigger rod (61-1), a trigger slide (61-2), and a trigger cylinder (61-4). The trigger rod (61-1) is mounted on the trigger slide (61-2), and the trigger cylinder (61-4) is connected to the trigger slide (61-2) to drive the trigger rod (61-1) to move up and down. The signal output mechanism (62) is located below the turntable (1-1) and includes a detection conductive rod (62-1), a conductive rod mounting base (62-2), and a detection lifting cylinder (62-3). The detection conductive rod (62-1) has two sets and is respectively mounted on the conductive rod mounting base (62-2). The detection lifting cylinder (62-3) is connected to the conductive rod mounting base (62-2) and is used to drive the detection conductive rod (62-1) to move up and down.

9. The automated assembly equipment for micro switches according to claim 8, characterized in that: A limiting block (61-3) is also provided below the trigger slide (61-2). The upper end of the trigger rod (61-1) is connected to the trigger slide (61-2) by a thread, which is used to adjust the relative position of the lower end of the trigger rod (61-1) and the limiting block (61-3).

10. The automated assembly equipment for micro switches according to claim 1, characterized in that: The product unloading mechanism (7) includes an unloading gripper (7-1), which is mounted on the sixth horizontal and vertical bidirectional motion assembly. It is used to remove the micro switch (100) at the product unloading station (1F) so that the vacant clamp assembly (1-2) can rotate to the lower housing loading station (1A).

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